A machine tool auxiliary tensioning device for blade workpiece processing

Abstract

The present invention belongs to the technical field of machine tool auxiliary tensioning, and in particular, is a machine tool auxiliary tensioning device for processing blade workpieces, comprising a frame, and also comprising a tensioning device and a conveying device installed on the frame. The machine tool auxiliary tensioning device for processing blade workpieces can clamp the blade by setting a clamping mechanism, and is fixedly installed between a rotating rack and a clamping ring groove, so that the rotation of the rotating rack drives the clamping ring groove to rotate, so that the blade can be clamped according to the irregular shape of the blade, and the clamping block can be kept in contact with the outer surface of the blade. When the clamping motor is started, a transmission rod can be driven to rotate, and the bevel gear on the transmission rod can drive the other transmission rod to rotate in the opposite direction through the transmission of the transmission bevel gear, so that the two clamping gear rings can be driven to rotate in the opposite direction, and then the clamping rack can be driven to move relatively to clamp the blade.

Description

Technical Field

[0001] The invention relates to the technical field of machine tool auxiliary tensioning, and in particular to a machine tool auxiliary tensioning device for blade workpiece processing. Background Art

[0002] Machine tool auxiliary tensioning refers to the use of auxiliary equipment or tools to provide sufficient clamping force during machine tool processing to ensure that the workpiece remains stable and does not move during processing. The tensioning device can improve processing accuracy and avoid processing errors caused by loose workpieces.

[0003] In the processing of blade-type workpieces, due to their complex shapes and high precision requirements, traditional clamping methods often cannot provide sufficient stability and cannot tighten the blades, which easily leads to loosening of the workpiece, thus affecting the processing accuracy and production efficiency. In addition, the existing processing of blades is carried out by manual loading and unloading, which reduces work efficiency and increases labor costs. Due to the irregular shape of the blades, manual clamping is cumbersome, which easily causes unstable clamping and affects the processing accuracy. Summary of the invention

[0004] Based on the fact that in the existing processing of blade-type workpieces, the blades cannot be tightened, which easily leads to loosening of the workpiece, thereby affecting the processing accuracy and production efficiency, and the existing processing of blades requires manual loading and unloading, which reduces work efficiency, increases labor costs, and the manual clamping is cumbersome, which affects the processing accuracy. The present invention proposes a machine tool auxiliary tensioning device for blade workpiece processing.

[0005] The invention provides a machine tool auxiliary tensioning device for blade workpiece processing, which comprises a frame, and also comprises a tensioning device and a conveying device installed on the frame.

[0006] The tensioning device is located on the upper surface of the frame and is used to tension the blades to be processed. The tensioning device includes an A1-axis turntable and a U-axis screw. The rotation of the U-axis screw drives the A1-axis turntable to move axially with constant force.

[0007] The conveying device is located on the outer side of the frame, and conveys the blades that need to be processed and the processed blades. The conveying device includes a driving mechanism, a telescopic mechanism and a clamping mechanism. The driving mechanism includes a conveying synchronous belt. The rotation of the conveying synchronous belt drives the clamping mechanism to move. The telescopic mechanism includes a telescopic scissors frame. The expansion of the telescopic scissors frame drives the clamping mechanism to move forward and backward. The clamping mechanism includes a clamping gear ring and a clamping block. The rotation of the clamping gear ring drives the clamping block to move to clamp the blade.

[0008] Preferably, the tensioning device also includes an A-axis turntable, an A1-axis pallet, a U-axis guide rail, a turntable base, a servo motor, a U-axis inner protective cover, a U-axis outer protective cover, a shield connecting plate, a turntable chuck and a self-fixing clamp. The turntable base is fixedly mounted on the upper surface of the frame, the U-axis guide rail is fixedly mounted on the upper surface of the turntable base, the A1-axis pallet is slidably inserted on the upper surface of the U-axis guide rail, the A1-axis turntable is fixedly mounted on the upper surface of the A1-axis pallet, the U-axis screw is rotatably connected to the inside of the turntable base through a bearing, the servo motor is fixedly mounted on the outer side of the turntable base, one end of the output shaft of the servo motor is fixedly mounted on one end of the U-axis screw, and the lower surface of the A1-axis pallet is threadedly connected to the outer surface of the U-axis screw.

[0009] Through the above technical scheme, the constant force tension driven by the U-axis screw can ensure the constant tension received by the blade workpiece in real time, ensure the clamping support rigidity of the workpiece, improve the geometric accuracy and surface quality of blade processing, and the constant force tension driven by the U-axis screw can also be electrically controlled to adjust it to a constant force tightening output mode, which is convenient for specific clamping schemes for different types of workpieces.

[0010] Preferably, the A-axis turntable is fixedly mounted on the upper surface of the turntable base, the head and tail ends of the U-axis guide rail are respectively fixedly mounted on the U-axis inner shield and one end of the U-axis outer shield, the shield connecting plate is fixedly mounted on the outer side of the A1-axis tray, the two turntable chucks are respectively fixedly mounted on the outer sides of the A-axis turntable and the A1-axis turntable, and the self-fixing clamp is fixedly mounted on the outer surface of the turntable chuck.

[0011] Through the above technical solution, the A-axis turntable is installed on the left side of the turntable base, the A1-axis pallet and the turntable base are connected by a high-rigidity, high-precision linear guide rail, and the A1-axis turntable is fixed on the A1-axis pallet. Due to the use of high-rigidity, high-precision guide rail connection, it is ensured that the A1-axis turntable has ultra-high coaxiality with the A-axis turntable when the U-axis moves. The A-axis turntable and the A1-axis turntable adopt a direct-drive turntable servo structure, equipped with a high-precision rotary encoder, which controls the motion of the A-axis turntable and the A1-axis turntable to be synchronized. The motion mode ensures that the rotational motion of the long blade parts has high precision and high stability, and ensures the rotational positioning accuracy of the workpiece rotary axis. The U-axis inner shield and the U-axis outer shield are respectively set on both sides of the head and tail ends of the U-axis guide rail. This structure provides strict protection for the driving screw and linear rail used, and shield connecting plates are set on both sides of the A1-axis pallet to ensure that the U-axis screw and U-axis guide rail will not be affected by cutting during the processing process, thereby causing damage to the accessories. The self-fixing clamp can automatically clamp and release the clamp.

[0012] Preferably, the driving mechanism also includes a connecting frame, which is fixedly mounted on the outer side of the frame, the outer surface of the connecting frame is rotatably connected to a synchronous wheel via a bearing seat, the outer surface of the synchronous wheel is rotatably connected to the inner side of the conveyor timing belt, and a driving motor is fixedly mounted on the outer side of the connecting frame, and one end of the output shaft of the driving motor is fixedly mounted to one end of the synchronous wheel.

[0013] Through the above technical solution, the driving motor can drive the synchronous wheel to rotate, and the rotation of the synchronous wheel drives the conveying synchronous belt to rotate, so that the blades can be switched, which is convenient for continuous conveying of the blades.

[0014] Preferably, the telescopic mechanism includes a support frame, the support frame is fixedly mounted on the outer surface of the conveyor synchronous belt, the outer side surface of the support frame is hinged to the outer side surface of the telescopic scissors frame through a pin shaft, one end of the telescopic scissors frame is hinged to a mounting frame through a pin shaft, a supporting telescopic rod is fixedly mounted on the outer side surface of the support frame, and one end of the supporting telescopic rod is fixedly mounted to the outer side surface of the mounting frame.

[0015] Through the above technical solution, in order to facilitate the blades clamped on the support frame to be close to the tensioning device, the telescopic scissors frame can be unfolded by pushing the mounting frame to move, cooperating with the movement of the mounting frame. At the same time, the supporting telescopic rod can stably support the mounting frame to prevent the position of the mounting frame from shifting.

[0016] Preferably, the clamping mechanism also includes a clamping frame, a switching rack is fixedly installed on the outer side surface of the clamping frame, one end of the switching rack is slidably inserted into the outer side surface of the mounting frame, a connecting telescopic rod is fixedly installed on the outer surface of the clamping frame, one end of the connecting telescopic rod is fixedly installed on one end of the mounting frame, and the outer side surface of the mounting frame is rotatably connected to a switching rod with a gear through a bearing seat, and the gear of the switching rod is meshed with the switching rack.

[0017] Through the above technical solution, in order to be able to clamp the processed blades and convey the unprocessed blades, the rotation of the switching rod can drive the switching racks distributed above and below the switching rod to move in the opposite or relative direction, thereby changing the positions of the two clamping mechanisms and completing the switching work.

[0018] Preferably, a rotating ring groove is slidably inserted into the outer surface of the clamping frame, a return spring is fixedly installed on the outer surface of the connecting rod of the rotating ring groove, one end of the return spring is fixedly installed on the outer surface of the clamping frame, a rotating rack is slidably inserted into the inner wall of the rotating ring groove, a rotating motor is fixedly installed on the inner wall of the rotating ring groove, the output shaft of the rotating motor is meshed with the rotating rack through a gear, a roller is fixedly installed on one end of the connecting rod of the rotating ring groove through a connecting plate, and a pushing inclined plate is fixedly installed on the outer surfaces of the A1 axis tray and the A axis turntable, and the outer surface of the pushing inclined plate is slidably connected to the outer surface of the roller after movement.

[0019] Through the above technical solution, by plugging the rotating ring groove and the clamping frame, the rotating ring groove can be lifted and lowered, so that the two ends of the blades clamped by the rotating ring groove can be located on the same horizontal line of the self-fixing clamp, making it easier for the blades of the self-fixing clamp to be removed or clamped.

[0020] The outer surface of the clamping ring groove is fixedly installed with a clamping ring groove, and the inner wall of the clamping ring groove is slidably inserted into the outer surface of the clamping gear ring, and the outer surface of the clamping ring groove is rotatably connected to a transmission gear set through a bearing seat, and a gear of the transmission gear set is meshed with the clamping gear ring, and the inner wall of the clamping ring groove is slidably inserted with a clamping rack, and the clamping rack is meshed with another gear of the transmission gear set. The clamping block is fixedly installed at one end of the clamping rack, and the outer surface of the clamping ring groove is fixedly installed with a clamping motor

[0021] Through the above technical scheme, by fixing the rotating rack and the clamping ring groove, the rotation of the rotating rack drives the clamping ring groove to rotate, so that it can clamp according to the irregular shape of the blade, keep the clamping block able to fit the outer surface of the blade, and start the clamping motor to drive a transmission rod to rotate. The bevel gear on the transmission rod can drive the other transmission rod to rotate in the opposite direction through the transmission of the transmission bevel gear, so that the two clamping gear rings can be driven to rotate in the opposite direction, and then drive the clamping rack to move relatively to clamp the blade.

[0022] Preferably, a pushing hydraulic cylinder is fixedly installed on the outer surface of the connecting frame, a pushing rod is fixedly installed on one end of the piston rod of the pushing hydraulic cylinder, a pushing handle is slidably inserted into the inner wall of the pushing rod, a connecting spring is fixedly installed on one end of the pushing handle, one end of the connecting spring is fixedly installed on the inner wall of the pushing rod, a pushing hole is opened on the outer surface of the mounting frame, the inner wall of the pushing hole is slidably connected to one end of the pushing handle, and a limiting frame is fixedly installed on the outer surface of the supporting frame, and after movement, both ends of the mounting frame contact the inner side surface of the limiting frame.

[0023] Through the above technical solution, the pushing rod can be driven to move by pushing the hydraulic cylinder, thereby pushing the mounting frame to move through the pushing handle. After the mounting frame moves to a set distance, it is limited by the limiting frame, and the pushing handle is compressed after encountering resistance, so that the pushing handle can pass through the mounting frame and continue to move forward. The connecting spring facilitates the resetting of the pushing handle.

[0024] Preferably, a push rack is fixedly mounted on the outer side surface of the mounting frame, the push rack is meshed with the gear of the switching rod, and the moving end of the push rod contacts the outer surface of the connecting block of the push rack.

[0025] Through the above technical solution, the gear of the switching lever can be driven to rotate by moving the push rod forward, thereby driving two clamping frames on a mounting frame to move relative or oppositely, thereby completing automatic loading and unloading of blades.

[0026] The beneficial effects of the present invention are:

[0027] 1. By setting up a tensioning device, the clamped blades can be tightened. The constant force tension driven by the U-axis screw can ensure the constant tension received by the blade workpiece in real time, ensure the clamping support rigidity of the workpiece, and improve the geometric accuracy and surface quality of blade processing. The constant force tension driven by the U-axis screw can also be electrically controlled to adjust it to a constant force tightening output mode, which is convenient for specific clamping schemes for different types of workpieces. It solves the existing technical problem that in the processing of blade workpieces, the blades cannot be tightened, which easily leads to loosening of the workpiece, thereby affecting the processing accuracy and production efficiency.

[0028] 2. By setting up a conveying device, the blades can be automatically conveyed, and the rotation of the synchronous wheel drives the conveying synchronous belt to rotate, thereby driving the switching of multiple groups of clamping mechanisms on the conveying synchronous belt, so as to facilitate the continuous conveying of the blades. In order to facilitate the blades clamped on the support frame to be close to the tensioning device, the telescopic scissors frame can be unfolded by pushing the mounting frame to move, and cooperate with the movement of the mounting frame. At the same time, the supporting telescopic rod can stably support the mounting frame to prevent the position of the mounting frame from shifting. The mounting frame is pushed after it is close to the tensioning device, so that the blades can be placed on the tensioning device, thereby reducing the input of labor and performing automatic conveying and loading and unloading, which solves the technical problems of existing blade processing, manual loading and unloading, reduced work efficiency, increased labor costs, cumbersome manual clamping, and affecting processing accuracy.

[0029] 3. By setting up a clamping mechanism, the blades can be clamped, and the rotating rack and the clamping ring groove are fixedly installed so that the rotation of the rotating rack drives the clamping ring groove to rotate, so that the blades can be clamped according to the irregular shape of the blades, and the clamping block can be kept in contact with the outer surface of the blades. By starting the clamping motor, a transfer rod can be driven to rotate, and the bevel gear on the transfer rod can drive the other transfer rod to rotate in the opposite direction through the transmission of the bevel gear, so that the two clamping gear rings can be driven to rotate in the opposite direction, and then the clamping rack can be driven to move relative to each other to clamp the blades, so that the processed blades can be automatically removed and the unprocessed blades can be transported, which solves the technical problems of manual loading and unloading in the existing processing of blade workpieces, which reduces work efficiency, increases labor costs, and is cumbersome to manually clamp, affecting processing accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0031] Figure 2 A three-dimensional diagram of the A-axis turntable structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0032] Figure 3 A front view of the A1 axis turntable structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0033] Figure 4 A three-dimensional diagram of a U-axis screw rod structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0034] Figure 5 A three-dimensional diagram of a connecting frame structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0035] Figure 6 A three-dimensional diagram of a telescopic scissor frame structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0036] Figure 7 A three-dimensional diagram of a clamping frame structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0037] Figure 8 A three-dimensional diagram of a switching rack structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0038] Fig. 9 A three-dimensional diagram of a roller structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0039] Fig.10 A three-dimensional diagram of a rotating rack structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0040] Fig.11 A three-dimensional diagram of a clamping gear ring structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0041] Fig.12 A three-dimensional diagram of a driving hydraulic cylinder structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention;

[0042] Fig.13 A stereoscopic view of a push handle structure of a machine tool auxiliary tensioning device for blade workpiece processing proposed by the present invention.

[0043] In the figure: 1. Frame; 2. Turntable base; 21. A-axis turntable; 22. A1-axis tray; 23. A1-axis turntable; 24. U-axis guide rail; 25. U-axis screw rod; 26. Servo motor; 27. U-axis outer protective cover; 28. U-axis inner protective cover; 29. ​​Protective cover connecting plate; 3. Turntable chuck; 31. Self-fixing clamp; 4. Connecting frame; 41. Synchronous wheel; 42. Conveying synchronous belt; 43. Driving motor; 5. Support frame; 51. Telescopic scissor frame; 52. Mounting frame; 53. Support telescopic rod; 6. Clamping frame; 61 , switching rack; 62, connecting telescopic rod; 63, switching rod; 7, rotating ring groove; 71, reset spring; 72, rotating rack; 73, rotating motor; 74, roller; 75, pushing inclined plate; 8, clamping ring groove; 81, transmission gear set; 82, clamping gear ring; 83, clamping rack; 84, clamping block; 85, clamping motor; 86, transmission bevel gear; 87, transmission rod; 9, pushing hydraulic cylinder; 91, pushing rod; 92, pushing handle; 93, connecting spring; 94, pushing hole; 95, limit frame; 96, pushing rack. DETAILED DESCRIPTION

[0044] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0045] Reference Figure 1-Figure 13 A machine tool auxiliary tensioning device for blade workpiece processing includes a frame 1, and also includes a tensioning device and a conveying device installed on the frame 1.

[0046] like Figure 2-Figure 4 As shown, in order to automatically tighten the blades, the tensioning device is located on the upper surface of the frame 1, and the blades to be processed are tightened. The tensioning device includes an A1-axis turntable 23 and a U-axis screw 25. The rotation of the U-axis screw 25 drives the A1-axis turntable 23 to move axially with constant force.

[0047] Specifically, in order to drive the U-axis screw 25 to rotate, the tensioning device also includes an A-axis turntable 21, an A1-axis tray 22, a U-axis guide rail 24, a turntable base 2, a servo motor 26, a U-axis inner protective cover 28, a U-axis outer protective cover 27, a shield connecting plate 29, a turntable chuck 3 and a self-fixing clamp 31. The turntable base 2 is fixedly mounted on the upper surface of the frame 1, the U-axis guide rail 24 is fixedly mounted on the upper surface of the turntable base 2, the A1-axis tray 22 is slidably inserted on the upper surface of the U-axis guide rail 24, the A1-axis turntable 23 is fixedly mounted on the upper surface of the A1-axis tray 22, the U-axis screw 25 is rotatably connected to the inside of the turntable base 2 through a bearing, the servo motor 26 is fixedly mounted on the outer side of the turntable base 2, one end of the output shaft of the servo motor 26 is fixedly mounted on one end of the U-axis screw 25, and the lower surface of the A1-axis tray 22 is threadedly connected to the outer surface of the U-axis screw 25.

[0048] The constant force tensioning driven by the U-axis screw 25 can ensure in real time that the tension received by the blade workpiece is constant, ensure the clamping support rigidity of the workpiece, and improve the geometric accuracy and surface quality of blade processing. The constant force tensioning driven by the U-axis screw 25 can also be electrically controlled to adjust it to a constant force tightening output mode, which is convenient for specific clamping schemes for different types of workpieces.

[0049] Specifically, in order to fix the blades, the A-axis turntable 21 is fixedly mounted on the upper surface of the turntable base 2, the head and tail ends of the U-axis guide rail 24 are respectively fixedly mounted on the U-axis inner protective cover 28 and one end of the U-axis outer protective cover 27, the protective cover connecting plate 29 is fixedly mounted on the outer side of the A1-axis tray 22, and the two turntable chucks 3 are respectively fixedly mounted on the outer sides of the A-axis turntable 21 and the A1-axis turntable 23, and motors are fixedly installed in the A-axis turntable 21 and the A1-axis turntable 23, which can drive the turntable chuck 3 to rotate, and the self-fixing clamp 31 is fixedly mounted on the outer surface of the turntable chuck 3. The turntable chuck 3 can be controlled to rotate by the motor, which is convenient for driving the blade for processing, and the self-fixing clamp 31 controls the clamp to move relative or oppositely through the motor.

[0050] The A-axis turntable 21 is installed on the left side of the turntable base 2, the A1-axis pallet 22 and the turntable base 2 are connected by a high-rigidity, high-precision linear guide rail, and the A1-axis turntable 23 is fixed on the A1-axis pallet 22. Due to the use of a high-rigidity, high-precision guide rail connection, it is ensured that the A1-axis turntable 23 has a super high coaxiality retention with the A-axis turntable 21 when the U-axis moves. The A-axis turntable 21 and the A1-axis turntable 23 adopt a direct-drive turntable servo structure, equipped with a high-precision rotary encoder, and the motion control of the A-axis turntable 21 and the A1-axis turntable 23 is a synchronous motion mode. The U-axis guide rail 24 is provided with a U-axis inner protective cover 28 and a U-axis outer protective cover 27 at both ends of the U-axis guide rail 24, respectively. This structure provides strict protection for the driving screw and linear rail used. Shield connecting plates 29 are provided on both sides of the A1-axis tray 22, ensuring that the U-axis screw rod 25 and the U-axis guide rail 24 will not be affected by cutting during the processing, thereby causing damage to the accessories. The self-fixing clamp 31 can automatically clamp and release the clamp.

[0051] like Figure 5-Figure 13 As shown, in order to automatically load and unload the blades, the conveying device is located on the outer side of the frame 1, and conveys the blades that need to be processed and the processed blades. The conveying device includes a driving mechanism, a telescopic mechanism and a clamping mechanism. The driving mechanism includes a conveying synchronous belt 42. The rotation of the conveying synchronous belt 42 drives the clamping mechanism to move. The telescopic mechanism includes a telescopic scissors frame 51. The expansion of the telescopic scissors frame 51 pushes the clamping mechanism to move forward and backward. The clamping mechanism includes a clamping gear ring 82 and a clamping block 84. The rotation of the clamping gear ring 82 drives the clamping block 84 to move to clamp the blade.

[0052] Specifically, in order to automatically complete the conveying of the blades, the driving mechanism also includes a connecting frame 4, which is fixedly installed on the outer side of the frame 1. The outer surface of the connecting frame 4 is rotatably connected to a synchronous wheel 41 through a bearing seat. The outer surface of the synchronous wheel 41 is rotatably connected to the inner side of a conveying synchronous belt 42. A driving motor 43 is fixedly installed on the outer side of the connecting frame 4, and one end of the output shaft of the driving motor 43 is fixedly installed to one end of the synchronous wheel 41.

[0053] Specifically, in order to push the blades close to the tensioning device, the telescopic mechanism includes a support frame 5, which is fixedly mounted on the outer surface of the conveyor timing belt 42. The outer side surface of the support frame 5 is hinged to the outer side surface of the telescopic scissors frame 51 through a pin shaft, and one end of the telescopic scissors frame 51 is hinged to a mounting frame 52 through a pin shaft. A supporting telescopic rod 53 is fixedly mounted on the outer side surface of the support frame 5, and one end of the supporting telescopic rod 53 is fixedly mounted to the outer side surface of the mounting frame 52.

[0054] Specifically, in order to switch the blades and enable loading and unloading, the clamping mechanism also includes a clamping frame 6, and a switching rack 61 is fixedly installed on the outer side surface of the clamping frame 6, one end of the switching rack 61 is slidably inserted into the outer side surface of the mounting frame 52, and a connecting telescopic rod 62 is fixedly installed on the outer surface of the clamping frame 6, one end of the connecting telescopic rod 62 is fixedly installed on one end of the mounting frame 52, and the outer side surface of the mounting frame 52 is rotatably connected to a switching rod 63 with a gear through a bearing seat, and the gear of the switching rod 63 is meshed with the switching rack 61.

[0055] Specifically, in order to drive the clamping block 84 to move and complete the clamping of the blade, the outer surface of the clamping frame 6 is slidably inserted with a rotating ring groove 7, and the outer surface of the connecting rod of the rotating ring groove 7 is fixedly installed with a reset spring 71, one end of the reset spring 71 is fixedly installed with the outer surface of the clamping frame 6, and the inner wall of the rotating ring groove 7 is slidably inserted with a rotating rack 72, and the inner wall of the rotating ring groove 7 is fixedly installed with a rotating motor 73, and the output shaft of the rotating motor 73 is meshed with the rotating rack 72 through a gear. In order to promote the rotating ring groove 7 to move, one end of the connecting rod of the rotating ring groove 7 is fixedly installed with a roller 74 through a connecting plate, and the outer surfaces of the A1 axis tray 22 and the A axis turntable 21 are fixedly installed with a pushing inclined plate 75, and the outer surface of the pushing inclined plate 75 is slidably connected with the outer surface of the roller 74 after movement.

[0056] Specifically, in order to drive the clamping block 84 to rotate so as to fit the outer surface of the blade, a clamping ring groove 8 is fixedly installed on the outer surface of the rotating rack 72, and the inner wall of the clamping ring groove 8 is slidably plugged with the outer side surface of the clamping gear ring 82. The outer side surface of the clamping ring groove 8 is rotatably connected with a transmission gear set 81 through a bearing seat, and a gear of the transmission gear set 81 is meshed with the clamping gear ring 82. A clamping rack 83 is slidably plugged into the inner wall of the clamping ring groove 8, and the clamping rack 83 is meshed with another gear of the transmission gear set 81. The clamping block 84 is fixedly installed at one end of the clamping rack 83. Drive the clamping gear ring 82 to rotate relative or oppositely, the outer side surface of the clamping ring groove 8 is fixedly installed with a clamping motor 85, and the outer side surface of the clamping ring groove 8 is rotatably connected to the transmission bevel gear 86 through a bearing, and the outer side surfaces of the clamping ring groove 8 are rotatably connected to transmission rods 87 with gear sets through bearings. The two transmission rods 87 are rotatably sleeved together, and one end of a transmission rod 87 is fixedly installed with one end of the output shaft of the clamping motor 85. The gears of the two transmission rods 87 are respectively meshed with the two clamping gear rings 82, and the bevel gears of the two transmission rods 87 are both meshed with the transmission bevel gear 86.

[0057] Specifically, in order to push the mounting frame 52 to move, a pushing hydraulic cylinder 9 is fixedly installed on the outer surface of the connecting frame 4, and a pushing rod 91 is fixedly installed on one end of the piston rod of the pushing hydraulic cylinder 9. A pushing handle 92 is slidably inserted into the inner wall of the pushing rod 91, and a connecting spring 93 is fixedly installed on one end of the pushing handle 92. One end of the connecting spring 93 is fixedly installed on the inner wall of the pushing rod 91. A pushing hole 94 is opened on the outer surface of the mounting frame 52, and the inner wall of the pushing hole 94 is slidably connected to one end of the pushing handle 92. A limiting frame 95 is fixedly installed on the outer surface of the supporting frame 5. After movement, the two ends of the mounting frame 52 contact the inner side surface of the limiting frame 95.

[0058] Specifically, in order to drive the switching rod 63 to rotate, a pushing rack 96 is fixedly installed on the outer side surface of the mounting frame 52, and the pushing rack 96 is meshed with the gear of the switching rod 63. The end of the pushing rod 91 after moving is magnetically connected to the outer surface of the magnetic block of the pushing rack 96. The magnetic block is fixedly installed on the outer surface of the pushing rack 96 and can be magnetically connected to one end of the pushing rod 91, so that the movement of the pushing rod 91 drives the pushing rack 96 to move.

[0059] Working principle: The blade to be processed is clamped by a robot or taken manually and placed between two clamping blocks 84. After the rotating motor 73 on the clamping frame 6 is started, the rotating rack 72 in the rotating ring groove 7 is driven to rotate, thereby driving the clamping ring groove 8 to rotate, so that the clamping block 84 is rotated, so that the clamping block 84 can fit the surface of the blade. After the clamping motor 85 is started, the clamping motor 85 drives a transmission rod 87 to rotate, and the bevel gear on the transmission rod 87 drives the transmission bevel gear 86 to rotate, and then drives another transmission rod 87 to rotate. The gears on the two transmission rods 87 rotate in the opposite direction, so that the clamping gear ring 82 in the clamping ring groove 8 can be driven to rotate in the opposite direction. After driving the transmission gear set 81 to rotate, the clamping rack 83 meshing with it is driven to move. After the clamping block 84 clamps the blade, the clamping block 84 at the other end rotates and moves relatively, so that the other end of the blade can be clamped.

[0060] The driving motor 43 on the connecting frame 4 can drive the rotation of the synchronous wheel 41, thereby driving the conveying synchronous belt 42 to rotate, so as to facilitate clamping of multiple groups of blades. After the hydraulic cylinder 9 is started, the hydraulic cylinder 9 is pushed to push the pushing rod 91 to move. After the pushing handle 92 on the pushing rod 91 contacts the mounting frame 52, the mounting frame 52 is pushed to move. After the mounting frame 52 moves, the telescopic scissors frame 51 is driven to unfold, and the supporting telescopic rod 53 is stretched. After the mounting frame 52 encounters the limiting frame 95 and is limited, the pushing handle 92 on the pushing rod 91 is compressed into the groove of the pushing rod 91 after being subjected to pressure, and the connecting spring 93 is compressed. After the pushing rod 91 passes through the mounting plate, it can push the pushing rack 96 to move. After the pushing rack 96 can drive the switching rod 63 to rotate, the switching rod 63 drives the switching rack 61 to move, and the two clamping frames 6 are pushed to move in the opposite direction. , so that the rotating annular groove 7 without the blade clamped moves to the top of the turntable base 2, the roller 74 on the rotating annular groove 7 is squeezed when encountering the pushing inclined plate 75, and the rotating annular groove 7 is pushed to rise. After the return spring 71 is compressed, the rotating annular groove 7 is located at both ends of the processed blade. After the clamping annular groove 8 rotates in the rotating annular groove 7, the clamping block 84 fits the outer surface of the blade to complete the clamping of the blade. After the push rod 91 retracts, the pushing rack 96 is driven by the magnetic block to move, so that the two clamping frames 6 are reset. After the clamping frame 6 clamping the blade above is located above the self-fixing clamp 31, it is pressurized by the pushing inclined plate 75, and the roller 74 drives the rotating annular groove 7 to descend, so that the clamped blade is located at the center of the two self-fixing clamps 31. After the rotation of the two turntable chucks 3, the rotation of the self-fixing clamp 31 is driven to clamp the blade.

[0061] After the blades are replaced, the servo motor 26 on the turntable base 2 is started, which drives the servo motor 26 to drive the U-axis screw 25 to rotate. The U-axis screw 25 can drive the A1-axis tray 22 to move and tighten the clamped blades.

[0062] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A machine tool auxiliary tensioning device for blade workpiece processing, comprising a frame, characterized in that: It also includes a tensioning device and a conveying device installed on the frame; The tensioning device is located on the upper surface of the frame and is used to tension the blades to be processed. The tensioning device includes an A-axis turntable, an A1-axis pallet, an A1-axis turntable and a U-axis screw. The rotation of the U-axis screw drives the A1-axis turntable to move axially with constant force. The conveying device is located on the outer side of the frame, and conveys the blades to be processed and the processed blades. The conveying device includes a driving mechanism, a telescopic mechanism and a clamping mechanism. The driving mechanism includes a conveying synchronous belt. The rotation of the conveying synchronous belt drives the clamping mechanism to move. The telescopic mechanism includes a telescopic scissor frame. The expansion of the telescopic scissor frame drives the clamping mechanism to move forward and backward. The clamping mechanism includes a clamping gear ring and a clamping block. The rotation of the clamping gear ring drives the clamping block to move to clamp the blade. The telescopic mechanism comprises a support frame, the support frame is fixedly mounted on the outer surface of the conveyor synchronous belt, the outer side surface of the support frame is hinged to the outer side surface of the telescopic scissors frame through a pin shaft, one end of the telescopic scissors frame is hinged to a mounting frame through a pin shaft, a supporting telescopic rod is fixedly mounted on the outer side surface of the support frame, and one end of the supporting telescopic rod is fixedly mounted to the outer side surface of the mounting frame; The clamping mechanism also includes a clamping frame, a switching rack is fixedly installed on the outer side of the clamping frame, one end of the switching rack is slidably plugged with the outer side of the mounting frame, a connecting telescopic rod is fixedly installed on the outer surface of the clamping frame, one end of the connecting telescopic rod is fixedly installed with one end of the mounting frame, and a switching rod with a gear is rotatably connected to the outer side of the mounting frame through a bearing seat, and the gear of the switching rod is meshed with the switching rack; The outer surface of the clamping frame is slidably plugged with a rotating ring groove, the outer surface of the connecting rod of the rotating ring groove is fixedly installed with a return spring, one end of the return spring is fixedly installed with the outer surface of the clamping frame, the inner wall of the rotating ring groove is slidably plugged with a rotating rack, the inner wall of the rotating ring groove is fixedly installed with a rotating motor, the output shaft of the rotating motor is meshed with the rotating rack through a gear, one end of the connecting rod of the rotating ring groove is fixedly installed with a roller through a connecting plate, the outer surfaces of the A1 axis tray and the A axis turntable are fixedly installed with a push inclined plate, and the outer surface of the push inclined plate is slidably connected with the outer surface of the roller after movement; The outer surface of the rotating rack is fixedly installed with a clamping ring groove, and the inner wall of the clamping ring groove is slidably inserted into the outer surface of the clamping gear ring, and the outer surface of the clamping ring groove is rotatably connected to the transmission gear set through the bearing seat. One gear of the transmission gear set is meshed with the clamping gear ring, and the inner wall of the clamping ring groove is slidably inserted with a clamping rack, and the clamping rack is meshed with another gear of the transmission gear set. The clamping block is fixedly installed on one end of the clamping rack, and the outer surface of the clamping ring groove is fixedly installed with a clamping motor 2. The machine tool auxiliary tensioning device for blade workpiece processing according to claim 1 is characterized in that: The tensioning device also includes a U-axis guide rail, a turntable base, a servo motor, a U-axis inner protective cover, a U-axis outer protective cover, a protective cover connecting plate, a turntable chuck and a self-fixing clamp. The turntable base is fixedly mounted on the upper surface of the frame, the U-axis guide rail is fixedly mounted on the upper surface of the turntable base, the A1-axis tray is slidably inserted on the upper surface of the U-axis guide rail, the A1-axis turntable is fixedly mounted on the upper surface of the A1-axis tray, the U-axis screw is rotatably connected to the inside of the turntable base through a bearing, the servo motor is fixedly mounted on the outer side of the turntable base, one end of the output shaft of the servo motor is fixedly mounted on one end of the U-axis screw, and the lower surface of the A1-axis tray is threadedly connected to the outer surface of the U-axis screw.

3. The machine tool auxiliary tensioning device for blade workpiece processing according to claim 2 is characterized in that: The A-axis turntable is fixedly mounted on the upper surface of the turntable base, the head and tail ends of the U-axis guide rail are respectively fixedly mounted on the inner protective cover of the U-axis and one end of the outer protective cover of the U-axis, the protective cover connecting plate is fixedly mounted on the outer side of the A1-axis tray, the two turntable chucks are respectively fixedly mounted on the outer sides of the A-axis turntable and the A1-axis turntable, and the self-fixing clamp is fixedly mounted on the outer surface of the turntable chuck.

4. The machine tool auxiliary tensioning device for blade workpiece processing according to claim 3 is characterized in that: The driving mechanism also includes a connecting frame, which is fixedly mounted on the outer side of the frame, and the outer surface of the connecting frame is rotatably connected to a synchronous wheel through a bearing seat, and the outer surface of the synchronous wheel is rotatably connected to the inner side of the conveyor synchronous belt, and a driving motor is fixedly mounted on the outer side of the connecting frame, and one end of the output shaft of the driving motor is fixedly mounted to one end of the synchronous wheel.

5. The machine tool auxiliary tensioning device for blade workpiece processing according to claim 4 is characterized in that: A pushing hydraulic cylinder is fixedly installed on the outer surface of the connecting frame, a pushing rod is fixedly installed on one end of the piston rod of the pushing hydraulic cylinder, a pushing handle is slidably inserted into the inner wall of the pushing rod, a connecting spring is fixedly installed on one end of the pushing handle, one end of the connecting spring is fixedly installed on the inner wall of the pushing handle, a pushing hole is opened on the outer surface of the mounting frame, the inner wall of the pushing hole is slidably connected to one end of the pushing handle, a limiting frame is fixedly installed on the outer surface of the supporting frame, and after movement, both ends of the mounting frame contact the inner side surface of the limiting frame.

6. The machine tool auxiliary tensioning device for blade workpiece processing according to claim 5, characterized in that: A push rack is fixedly mounted on the outer side surface of the mounting frame, the push rack is meshed with the gear of the switching lever, and one end of the push rod after moving is magnetically connected to the outer surface of the magnetic block of the push rack.

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