Five-axis tool sharpener

Abstract

The invention provides a five-axis tool sharpener. The five-axis tool sharpener comprises a base table, a tool rest and a tool rest, the cutting mechanism comprises a cutting assembly and a probe assembly, the probe assembly is installed on the cutting assembly, and the probe assembly is used for determining the position of the workpiece and / or serving as a signal acquisition end to detect the surface contour of the workpiece; the moving mechanism comprises a lifting assembly and a balancing assembly, the lifting assembly is installed on the base table, the lifting assembly can drive the cutting assembly to ascend and descend relative to the base table, and the balancing assembly provides driving force for the lifting assembly to balance the vertical load of the lifting assembly; the clamping mechanism is mounted on the base table and used for fixing a workpiece; the mechanical arm is installed on the lifting assembly and used for transferring the workpiece to be machined to the clamping mechanism. The moving mechanism can drive the cutting mechanism and the mechanical arm to move at the same time, the vertical load is balanced, corresponding moving mechanisms needing to be configured can be reduced, and therefore the structure of the five-axis tool sharpener can be simplified, and the precision of a machine tool can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of machining equipment, and in particular to a five-axis knife grinder. Background Art

[0002] Before machining a workpiece, a five-axis knife grinder needs to load and position the workpiece. In the prior art, both the mechanism for loading and the mechanism for positioning need to be configured with corresponding motion mechanisms, and the corresponding motion mechanisms drive the mechanism for loading and the mechanism for positioning to move to complete the operations of loading and positioning. Such a setting will result in a relatively complex structure of the five-axis knife grinder and low precision. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a five-axis knife grinder, which can simplify the structure while realizing the loading and positioning of the workpiece and improve the precision.

[0004] An embodiment of the present invention provides a five-axis knife grinder, which includes a base, a cutting mechanism, a moving mechanism, a clamping mechanism and a manipulator. The cutting mechanism includes a cutting assembly and a probe assembly. The probe assembly is installed on the cutting assembly. The probe assembly is used to determine the position of the workpiece and / or serve as a signal acquisition end to detect the surface profile of the workpiece. The moving mechanism includes a lifting assembly and a balancing assembly. The lifting assembly is installed on the base. The lifting assembly can drive the cutting assembly to lift relative to the base. The balancing assembly provides a driving force to the lifting assembly to balance the vertical load of the lifting assembly. The clamping mechanism is installed on the base and is used to fix the workpiece. The manipulator is installed on the lifting assembly and is used to transfer the workpiece to be machined to the clamping mechanism.

[0005] The five-axis knife grinder provided by the embodiment of the present invention has at least the following beneficial effects: On the one hand, the probe assembly, the cutting assembly and the manipulator are all installed on the lifting assembly. The lifting assembly can drive the probe assembly, the cutting assembly and the manipulator to move simultaneously, which can reduce the corresponding motion mechanisms that need to be configured, thereby simplifying the structure of the five-axis knife grinder and improving the precision of the five-axis knife grinder. On the other hand, the balancing assembly can provide a driving force to the lifting assembly to balance the vertical load of the lifting assembly, which can reduce the risk that the vertical load of the lifting assembly is too large to operate normally due to the probe assembly, the cutting assembly and the manipulator being all installed on the lifting assembly.

[0006] In one embodiment of this implementation manner, the balancing assembly includes a hydraulic cylinder, an oil reservoir, and a pressure regulator. The hydraulic cylinder is disposed on the base and connected to the lifting assembly. The hydraulic cylinder can provide a driving force to balance the vertical load of the lifting assembly. The oil reservoir is connected to the hydraulic cylinder, and the pressure regulator is connected to the oil reservoir. The pressure regulator and the oil reservoir can cooperate to adjust the driving force of the hydraulic cylinder.

[0007] In one embodiment of this implementation manner, the piston rod of the hydraulic cylinder is connected to the base, and the cylinder block of the hydraulic cylinder is disposed on the lifting assembly.

[0008] In one embodiment of this implementation manner, the five-axis grinding machine further includes a center mechanism. The clamping mechanism is used to fix one end of the workpiece, and the center mechanism is used to abut against the other end of the workpiece. The center mechanism includes a center piece, and the center piece can approach or move away from the clamping mechanism.

[0009] In one embodiment of this implementation manner, a rotary drive assembly and a linear drive assembly are disposed on the base. The linear drive assembly is installed on the base, the rotary drive assembly is connected to the linear drive assembly, both the center mechanism and the clamping mechanism are installed on the rotary drive assembly, and the rotary drive assembly and the linear drive assembly can drive the clamping mechanism and the center mechanism to move synchronously.

[0010] In one embodiment of this implementation manner, the probe assembly includes a first probe and a second probe. The moving mechanism further includes a horizontal moving assembly. The horizontal moving assembly is installed on the base, the lifting assembly is movably disposed on the horizontal moving assembly in the vertical direction, the horizontal moving assembly can drive the cutting mechanism to move horizontally relative to the base, and the lifting assembly can drive the cutting mechanism to lift relative to the base.

[0011] In one embodiment of this implementation manner, the five-axis grinding machine further includes a dressing mechanism. The dressing mechanism is movably connected to the base, and the dressing mechanism can move relative to the base to approach or move away from the cutting assembly. The cutting assembly includes a grinding wheel. The grinding wheel is used for grinding the workpiece, and the dressing mechanism can dress the grinding wheel.

[0012] In one embodiment of this implementation manner, the dressing mechanism is installed on the rotary drive assembly, and the rotary drive assembly and the linear drive assembly can drive the clamping mechanism, the center mechanism, and the dressing mechanism to move synchronously. The dressing mechanism includes a dressing probe, and the dressing probe can abut against the grinding wheel and is used for measuring the radius of the grinding wheel.

[0013] In an embodiment of this implementation manner, the moving mechanism further includes a horizontal moving component, the horizontal moving component is installed on the base, and the lifting component is installed at the driving end of the horizontal moving component.

[0014] In an embodiment of this implementation manner, the manipulator includes a first swing arm, a second swing arm, a rotating cylinder, a working cylinder and a pipeline. The first swing arm is installed on the lifting component, a wire groove is formed on the first swing arm, the first swing arm and the second swing arm are connected by the rotating cylinder, the rotating cylinder can drive the second swing arm to rotate relative to the first swing arm, a wire passing hole is formed on the rotating shaft of the rotating cylinder, the wire passing hole communicates with the wire groove, the working cylinder is arranged on the second swing arm, the pipeline is communicated with the working cylinder and is routed along the wire passing hole and the wire groove, and the working cylinder is used for transferring the workpiece.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the drawings and embodiments, where: Figure 1 is a three-dimensional structural schematic diagram of a five-axis grinding machine according to an embodiment of an implementation manner of the present invention; Figure 2 is Figure 1 a side view of the five-axis grinding machine; Figure 3 is Figure 1 an enlarged schematic diagram of a partial structure of the five-axis grinding machine; Figure 4 is Figure 1 a structural schematic diagram of a partial structure of the five-axis grinding machine; Figure 5 is Figure 1 a structural schematic diagram of the center mechanism; Figure 6 is Figure 5 a side view of the center mechanism; Figure 7 is Figure 6 a cross-sectional view of the center mechanism in the B-B direction; Figure 8 is Figure 1 a structural schematic diagram of a partial structure of the five-axis grinding machine; Figure 9 is Figure 1 a structural schematic diagram of the manipulator; Figure 10 is Figure 1 a schematic principle diagram of the balance component.

[0017] Reference numerals: Five-axis grinding machine 100; X direction 200; Y direction 300; Z direction 400; workpiece 1000; base 10; cutting mechanism 20; cutting assembly 21; grinding wheel 211; lifting assembly 22; vertical slider 221; vertical linear motor 222; horizontal slider 23; probe assembly 24; horizontal moving assembly 25; horizontal linear motor 251; balancing assembly 30; hydraulic cylinder 31; piston rod 311; cylinder block 312; first chamber 3121; second chamber 3122; oil storage tank 32; nitrogen 321; hydraulic oil 322; pressure regulator 33; hydraulic pipe 34; manipulator 40; first swing arm 41; wire groove 411; second swing arm 42; rotary cylinder 43; wire hole 431; working cylinder 44; pipeline 45; clamping mechanism 50; rotary drive assembly 60; linear drive assembly 61; grinding wheel dressing mechanism 70; dressing probe 71; dressing grinding wheel 72; dressing driver 73; center mechanism 80; center piece 81; adjusting assembly 82; adjusting block 821; mounting block 822; connecting assembly 823; first connecting piece 8231; second connecting piece 8232; dovetail groove 8233; first fixing block 824; first threaded hole 8241; horizontal angle adjusting piece 83; adjusting seat 84; second fixing block 841; second threaded hole 8411; abutting driver 85; first screw 86; second screw 87; pin 88; linear guide 1011; cylinder 1012; horizontal guide 1013; vertical guide 1014. Detailed implementation manners

[0018] Embodiments of the present invention will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention and should not be construed as a limitation of the present invention.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation of the present invention.

[0020] In the description of the present invention, "several" means more than one, "multiple" means more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the base number, while understandings such as "above", "below", "within", etc. include the base number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0021] In the description of the present invention, unless otherwise clearly defined, words such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0022] In the description of the present invention, the description with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0023] Please refer to Figures 1 to 4 , Figure 1 which is a schematic three-dimensional structure diagram of a five-axis grinding machine 100 under an embodiment of an implementation manner of the present invention; Figure 2 is Figure 1 a side view of the five-axis grinding machine 100; Figure 3 is Figure 1 an enlarged schematic diagram of a partial structure of the five-axis grinding machine 100; Figure 4 is Figure 1 a schematic diagram of a partial structure of the five-axis grinding machine 100. The implementation manner of the present invention provides a five-axis grinding machine 100, and the five-axis grinding machine 100 includes a base 10, a cutting mechanism 20, a moving mechanism, a clamping mechanism 50, and a manipulator 40.

[0024] The cutting mechanism 20 includes a cutting assembly 21 and a probe assembly 24. The probe assembly 24 is installed on the cutting assembly 21, and the probe assembly 24 is used to determine the position of the workpiece 1000 and / or serve as a signal acquisition end to detect the surface profile of the workpiece 1000.

[0025] The moving mechanism includes a lifting assembly 22 and a balancing assembly 30. The lifting assembly 22 is installed on the base 10, and the lifting assembly 22 can drive the cutting mechanism 20 to lift relative to the base 10. The balancing assembly 30 provides a driving force to the lifting assembly 22 to balance the vertical load of the lifting assembly 22.

[0026] The clamping mechanism 50 is mounted on the base 10 and is used to fix the workpiece 1000. Among them, the clamping mechanism 50 includes a collet and a rotary drive. The collet is used to mount the workpiece 1000. The collet is mounted on the drive end of the rotary drive, and the axis of the collet coincides with the rotation axis of the drive end of the rotary drive. The rotation axis of the drive end of the rotary drive is parallel to the horizontal plane.

[0027] The manipulator 40 is mounted on the lifting assembly 22 and is used to transfer the workpiece 1000 to be processed to the clamping mechanism 50.

[0028] Specifically, the cutting assembly 21 includes a grinding wheel 211 and a drive for driving the grinding wheel 211 to work. The lifting assembly 22 includes a vertical slider 221 and a vertical linear motor 222. The vertical slider 221 is slidably engaged with the base 10 in the vertical direction. The stator of the vertical linear motor 222 is connected to the base 10, and the mover of the vertical linear motor 222 is connected to the vertical slider 221. The driving direction of the vertical linear motor 222 is the Z direction 400 parallel to the vertical direction. The cutting assembly 21 is mounted on the vertical slider 221. The balancing assembly 30 is connected to the vertical slider 221, and the manipulator 40 is mounted on the vertical slider 221. The probe assembly 24 has two probe heads, one of which extends in the vertical direction and the other extends in the horizontal direction.

[0029] It can be understood that the cutting assembly 21 is used to process the workpiece 1000. The vertical linear motor 222 can drive the vertical slider 221 to drive the cutting assembly 21 to move in the vertical direction. The balancing assembly 30 can generate a force on the vertical slider 221 in the vertically upward direction, so as to reduce the load when the vertical linear motor 222 drives the vertical slider 221. The manipulator 40 and the cutting assembly 21 are both mounted on the vertical slider 221, which can make the manipulator 40 and the cutting assembly 21 move synchronously, so as to facilitate the manipulator 40 to transfer the workpiece 1000 to the clamping mechanism 50.

[0030] The probe assembly 24 is mounted on the cutting assembly 21. The probe assembly 24 is fixed relative to the cutting assembly 21, which can reduce the risk of positional deviation between the two due to the movement of the probe assembly 24 relative to the cutting assembly 21, thereby improving the accuracy of the five-axis tool grinder 100. In one embodiment, when the probe assembly 24 approaches the workpiece 1000 in the vertical direction, the horizontally extending probe head of the probe assembly 24 can abut against the workpiece 1000, thereby determining the vertical position of the workpiece 1000. When the probe assembly 24 approaches the workpiece 1000 in the horizontal direction, the vertically extending probe head of the probe assembly 24 can abut against the workpiece 1000, thereby determining the horizontal position of the workpiece 1000. The two probe heads of the probe assembly 24 can respectively locate the workpiece 1000 from two directions. During the process of positioning the workpiece 1000 by the five-axis tool grinder 100, the two probe heads of the probe assembly 24 can cooperate to improve the positioning efficiency of the five-axis tool grinder 100. In another embodiment, the probe head extending in the vertical direction in the probe assembly 24 serves as a signal acquisition end and contacts the surface of the workpiece 1000 in a scanning manner in the XY horizontal plane, thereby detecting the surface contour of the circumference of the workpiece 1000. The probe head extending in the horizontal direction in the probe assembly 24 serves as a signal acquisition end and contacts the surface of the workpiece 1000 in a scanning manner in the YZ plane, thereby detecting the surface contour of the end face of the workpiece 1000. The two probe heads of the probe assembly 24 can respectively detect the circumferential contour and the end face contour of the workpiece 1000, thereby determining the surface contour of the workpiece 1000. In this embodiment, the probe assembly 24 can cooperate with the prototype workpiece to obtain the corresponding parameters required for processing the corresponding workpiece 1000, thereby calculating the motion trajectory of the cutting assembly 21; it can also be used to detect the yield rate of the finished workpiece.

[0031] In the five-axis tool sharpening machine 100 according to the embodiment of the present invention, on the one hand, the probe assembly 24, the cutting assembly 21, and the manipulator 40 are all mounted on the lifting assembly 22. The lifting assembly 22 can simultaneously drive the probe assembly 24, the cutting assembly 21, and the manipulator 40 to move, thereby reducing the need for corresponding motion mechanisms, thereby simplifying the structure of the five-axis tool sharpening machine 100 and improving the accuracy of the five-axis tool sharpening machine 100. On the other hand, the balancing assembly 30 can provide driving force to the lifting assembly 22 to balance the vertical load of the lifting assembly 22, thereby reducing the risk of the lifting assembly 22 being unable to operate normally due to excessive vertical load caused by the probe assembly 24, the cutting assembly 21, and the manipulator 40 being all mounted on the lifting assembly 22.

[0032] In one embodiment of this embodiment, please refer to Figure 1 , Figure 4 and Figure 10 , Figure 10 yes Figure 1Schematic diagram of the principle of the balance component 30. The balance component 30 includes a hydraulic cylinder 31, an oil reservoir 32, and a pressure regulator 33. The hydraulic cylinder 31 is arranged on the base 10 and is connected to the lifting component 22. The hydraulic cylinder 31 can provide a driving force to balance the vertical load of the lifting component 22. The oil reservoir 32 is connected to the hydraulic cylinder 31, and the pressure regulator 33 is connected to the oil reservoir 32. The pressure regulator 33 and the oil reservoir 32 can cooperate to adjust the driving force of the hydraulic cylinder 31.

[0033] Specifically, the oil reservoir 32 is filled with nitrogen gas 321 and hydraulic oil 322. Inside the oil reservoir 32, the nitrogen gas 321 fills the space above the liquid level of the hydraulic oil 322. The oil reservoir 32 and the cylinder block 312 of the hydraulic cylinder 31 are connected through a hydraulic pipe 34. One end of the hydraulic pipe 34 extends into the oil reservoir 32 and is submerged below the liquid level of the hydraulic oil 322. The pressure regulator 33 can charge or discharge nitrogen gas 321 into the oil reservoir 32.

[0034] It can be understood that the air pressure of the nitrogen gas 321 acts on the liquid surface of the hydraulic oil 322, which can press the hydraulic oil 322 into the cylinder block 312 of the hydraulic cylinder 31 through the hydraulic pipe 34 and generate a thrust on the piston rod 311 of the hydraulic cylinder 31, so that the hydraulic cylinder 31 can generate an external acting force. The pressure regulator 33 changes the air pressure of the nitrogen gas 321 in the oil reservoir 32 by charging or discharging nitrogen gas 321 into the oil reservoir 32, which can change the thrust of the hydraulic oil 322 on the piston rod 311 after entering the cylinder block 312, thereby adjusting the driving force of the hydraulic cylinder 31 to adapt to the vertical load of the lifting component 22 under different conditions.

[0035] In an embodiment of this implementation manner, please refer to Figure 4 and Figure 10 , the piston rod 311 of the hydraulic cylinder 31 is connected to the base 10, and the cylinder block 312 of the hydraulic cylinder 31 is arranged on the lifting component 22.

[0036] Specifically, the hydraulic cylinder 31 is a single-acting hydraulic cylinder 31. The cylinder block 312 of the hydraulic cylinder 31 has a first chamber 3121 and a second chamber 3122. The first chamber 3121 and the second chamber 3122 are respectively located on both sides of a piston (not labeled) on the piston rod 311. The second chamber 3122 communicates with the atmosphere. The first chamber 3121 is communicated with the oil reservoir 32 through the hydraulic pipe 34. After the hydraulic oil 322 enters the first chamber 3121, it can push the cylinder block 312 to rise. The cylinder block 312 of the hydraulic cylinder 31 is connected to the lifting component 22, and the piston rod 311 of the hydraulic cylinder 31 is connected to the base 10. The position where the piston rod 311 is connected to the base 10 is above the cylinder block 312.

[0037] It can be understood that the position where the piston rod 311 is connected to the base 10 is above the cylinder block 312. After the hydraulic oil 322 enters the first chamber 3121, it can push the cylinder block 312, enabling the cylinder block 312 to move upward relative to the piston rod 311. Thus, an upward force can be exerted on the lifting assembly 22 by the cylinder block 312. On the one hand, it is beneficial to balance the vertical load of the lifting assembly 22. On the other hand, the cylinder block 312 is arranged on the lifting assembly 22, and the position where the piston rod 311 is connected to the base 10 is above the cylinder block 312, which can prevent the cylinder block 312 from protruding relative to the lifting assembly 22 in the vertical direction. Therefore, it is beneficial to reduce the size of the overall structure formed by the hydraulic cylinder 31 and the lifting assembly 22 in the vertical direction, and further beneficial to adapt to the housing (not shown) of the five-axis grinding machine 100.

[0038] In an embodiment of this implementation manner, please refer to Figure 1 、 Figure 3 and Figure 5 , Figure 5 is Figure 1 a schematic structural diagram of the center mechanism 80. The five-axis grinding machine 100 further includes a center mechanism 80. The clamping mechanism 50 is used to fix one end of the workpiece 1000, and the center mechanism 80 is used to abut against the other end of the workpiece 1000. The center mechanism 80 includes a center piece 81 that can approach or move away from the clamping mechanism 50, and further includes an adjustment assembly 82 and a horizontal angle adjustment member 83. The adjustment assembly 82 is rotatably connected to the base 10, and the rotation axis of the adjustment assembly 82 is perpendicular to the horizontal plane. The center piece 81 is arranged on the adjustment assembly 82 and is used to abut against the workpiece 1000. The horizontal angle adjustment member 83 is movably arranged on the base 10 and is connected to the adjustment assembly 82. The horizontal angle adjustment member 83 can drive the adjustment assembly 82 to rotate and make the adjustment assembly 82 relatively fixed to the base 10.

[0039] Specifically, the center piece 81 is connected to the adjustment assembly 82 in a clamped manner. It should be understood that other connection methods such as welding, gluing, and magnetic attraction can also be selected to connect the center piece 81 to the adjustment assembly 82. The center mechanism 80 further includes an adjustment seat 84 and a abutment driver 85. The adjustment seat 84 is slidably connected to the base 10 in the horizontal direction. The abutment driver 85 is installed on the base 10 and can drive the adjustment seat 84 to move in the horizontal direction. The adjustment assembly 82 and the adjustment seat 84 are connected by a pin 88. The horizontal angle adjustment member 83 is a screw, and the screw is threadedly engaged with the base 10. An adjustment block 821 is arranged on the adjustment assembly 82. There are two screws, and the two screws are respectively arranged on opposite sides of the adjustment block 821 and respectively abut against opposite sides of the adjustment block 821.

[0040] It can be understood that during the rotation of the screw, it can move along the axis of rotation, thereby driving the adjusting block 821 to drive the adjusting assembly 82 to rotate. It can also abut against the adjusting block 821 through the screw to relatively fix the position of the adjusting assembly 82, so as to cooperate with the adjusting assembly 82 to adjust the horizontal angle of the tip member 81, helping the tip member 81 to abut against the workpiece 1000 concentrically and improving the machining accuracy of the workpiece 1000. The abutment driver 85 can move the adjusting seat 84 by driving, so that the tip member 81 can approach or move away from the workpiece 1000, thus facilitating the abutment and disassembly of the workpiece 1000.

[0041] Please refer to Figures 5 to 7 , Figure 6 is Figure 5 a side view of the tip mechanism 80 of Figure 7 is Figure 6 a sectional view of the tip mechanism 80 of taken along the B-B direction. It should be understood that in some of the embodiments, the adjusting assembly 82 includes a mounting block 822 and a connecting assembly 823. The connecting assembly 823 is rotatably connected to the adjusting seat 84 through a pin 88. The adjusting block 821 is disposed on the connecting assembly 823. The mounting block 822 is connected to the tip member 81, and the mounting block 822 is rotatably connected to the connecting assembly 823. The axis of rotation of the mounting block 822 is parallel to the horizontal plane. It can be understood that when the mounting block 822 rotates, it can drive the tip member 81 to rotate, thereby realizing the adjustment of the pitch angle of the tip member 81.

[0042] Please refer to Figures 5 to 7 , in some of the embodiments, the tip mechanism 80 further includes a pitch adjusting member, and the pitch adjusting member is connected to the connecting assembly 823 in a relatively movable manner and abuts against the mounting block 822.

[0043] Specifically, two first fixing blocks 824 are spaced apart on the connecting component 823. A first threaded hole 8241 is formed in each of the first fixing blocks 824. The first threaded hole 8241 penetrates through the first fixing block 824. The central lines of the two first threaded holes 8241 are parallel and both perpendicular to the rotation axis of the mounting block 822. The mounting block 822 is located between the two first fixing blocks 824, and the central lines of the two first threaded holes 8241 both pass through the mounting block 822. The pitching adjustment member includes two first screws 86. The two first screws 86 are respectively inserted into the two first threaded holes 8241, and the two first screws 86 respectively abut against the opposite sides of the mounting block 822. It can be understood that when the two first screws 86 respectively abut against the two sides of the mounting block 822, the mounting block 822 can be clamped, so that the mounting block 822 and the connecting component 823 can be relatively fixed. Moreover, when the two first screws 86 rotate in the first threaded holes 8241, they can move relative to the connecting component 823, so as to push the mounting block 822 to rotate, and then the mounting block 822 can drive the tip member 81 to rotate around the rotation axis parallel to the horizontal plane, so as to realize the adjustment of the pitching angle of the tip member 81.

[0044] Please refer to Figures 5 to 7 , in some embodiments, the connecting component 823 includes a first connecting member 8231 and a second connecting member 8232. The first connecting member 8231 is slidably connected to the second connecting member 8232 along a direction inclined to the horizontal plane. The mounting block 822 is rotatably connected to the first connecting member 8231 around an axis parallel to the horizontal plane. The second connecting member 8232 is rotatably connected to the adjusting seat 84 through a pin 88. The adjusting block 821 is connected to the second connecting member 8232. It can be understood that when the first connecting member 8231 moves along a direction inclined to the horizontal plane, the position of the first connecting member 8231 in the direction perpendicular to the horizontal plane will change, which is conducive to realizing the height adjustment of the tip member 81.

[0045] Specifically, a dovetail groove 8233 extending along a direction inclined to the horizontal plane is formed in the second connecting member 8232. The first connecting member 8231 is provided with a convex block (not shown in the figure) adapted to the shape of the dovetail groove 8233. The convex block and the dovetail groove 8233 are slidably engaged along a direction inclined to the horizontal plane. The bottom surface of the convex block is attached to the bottom wall of the dovetail groove 8233, and both are inclined to the horizontal plane.

[0046] Please refer to Figures 5 to 7 , in some embodiments, the tip mechanism 80 further includes a height adjustment member. The height adjustment member is slidably connected to the adjusting seat 84 and connected to the first connecting member 8231. The height adjustment member can drive the first connecting member 8231 to move along a direction inclined to the horizontal plane.

[0047] Specifically, the height adjusting member includes a second screw 87. The adjusting seat 84 is provided with a second fixing block 841. A second threaded hole 8411 is provided on the second fixing block 841. The axis of the second threaded hole 8411 is parallel to the horizontal plane. The second threaded hole 8411 penetrates through the second fixing block 841. The second screw 87 is in threaded cooperation with the second threaded hole 8411. The second screw 87 can abut against the first connecting member 8231 and is used to drive the first connecting member 8231 to move in a direction inclined to the horizontal plane. It should be noted that when the second screw 87 rotates in the second threaded hole 8411, it can move relative to the adjusting seat 84, so as to drive the first connecting member 8231 to move in a direction inclined to the horizontal plane, and further change the position of the first connecting member 8231 in the direction perpendicular to the horizontal plane, so as to realize the height adjustment of the tip member 81. It can be understood that choosing to use the second screw 87 as the height adjusting member is beneficial to simplifying the structure of the tip mechanism 80 on the one hand and reducing the manufacturing cost of the tip mechanism 80 on the other hand.

[0048] In an embodiment of this implementation manner, please refer to Figure 1 and Figure 2 , a linear driving assembly 61 and a rotary driving assembly 60 are provided on the base 10. The linear driving assembly 61 is installed on the base 10. The rotary driving assembly 60 is connected to the linear driving assembly 61. The clamping mechanism 50 and the tip mechanism 80 are both installed on the rotary driving assembly 60. The linear driving assembly 61 can drive the clamping mechanism 50 and the tip mechanism 80 to approach or move away from the cutting mechanism 20 synchronously. The rotary driving assembly 60 can drive the clamping mechanism 50 and the tip mechanism 80 to rotate synchronously relative to the cutting mechanism 20.

[0049] Specifically, the clamping mechanism 50 includes a collet and a rotary driver. The collet is used to mount the workpiece 1000. The collet is installed on the driving end of the rotary driver. The axis of the collet coincides with the rotation axis of the driving end of the rotary driver. The rotation axis of the driving end of the rotary driver is parallel to the horizontal plane. The linear driving assembly 61 is installed on the base 10. The driving direction of the linear driving assembly 61 is parallel to the horizontal plane. The rotary driving assembly 60 is arranged on the driving end of the linear driving assembly 61. The abutting driver 85 in the tip mechanism 80 and the rotary driver in the clamping mechanism 50 are both installed on the driving end of the rotary driving assembly 60. The rotation axis of the driving end of the rotary driving assembly 60 is perpendicular to the horizontal plane.

[0050] It can be understood that the rotary driver can drive the collet to drive the workpiece to rotate self - rotatably, the rotary drive assembly 60 can drive the collet to drive the workpiece 1000 to rotate relative to the cutting assembly 21 around an axis perpendicular to the horizontal plane, the driving direction of the linear drive assembly 61 is the X - direction 200, the X - direction 200 is parallel to the horizontal plane, and the linear drive assembly 61 is used to drive the workpiece 1000 to approach or move away from the cutting assembly 21 in a linear direction. With such a setting, the degree of freedom of the workpiece 1000 on the base 10 can be increased, and it is convenient for the cutting assembly 21 to process the workpiece 1000 from multiple directions. Installing the center mechanism 80 on the rotary drive assembly 60 can make the center piece 81 rotate or translate synchronously with the workpiece 1000, so that the center piece 81 can also abut against the workpiece 1000 when the workpiece 1000 rotates.

[0051] In an embodiment of this embodiment, please refer to Figure 1 and Figure 4 . The moving mechanism further includes a horizontal moving assembly 25. The horizontal moving assembly 25 is installed on the base 10. The lifting assembly 22 is movably arranged on the horizontal moving assembly 25 in the vertical direction. The horizontal moving assembly 25 can drive the cutting mechanism 20 to move horizontally relative to the base 10, and the lifting assembly 22 can drive the cutting mechanism 20 to move up and down relative to the base 10.

[0052] Specifically, the horizontal moving assembly 25 includes a horizontal slider 23, a horizontal guide rail 1013, and a horizontal linear motor 251. The horizontal guide rail 1013 and the horizontal linear motor 251 can both be installed on the base 10. The horizontal slider 23 is slidably engaged with the horizontal guide rail 1013 under the drive of the horizontal linear motor 251. The driving direction of the horizontal linear motor 251 is the Y - direction 300, the Y - direction 300 is perpendicular to the X - direction 200, and the Y - direction 300 is parallel to the horizontal plane. Among them, a vertical guide rail 1014 is provided on the horizontal slider 23. The stator of the vertical linear motor 222 in the lifting assembly 22 is installed on the horizontal slider 23. The vertical slider 221 in the lifting assembly 22 is slidably engaged with the vertical guide rail 1014 under the drive of the vertical linear motor 222.

[0053] It can be understood that the cutting assembly 21 is installed on the vertical slider 221. The horizontal slider 23 can move in the Y - direction 300, and the vertical slider 221 is slidably engaged with the horizontal slider 23 in the vertical direction, so that the vertical slider 221 can move in the Z - direction 400 and the Y - direction 300, which is conducive to increasing the movable directions of the cutting assembly 21 to facilitate the processing of the workpiece 1000.

[0054] It can be understood that the rotary drive can drive the clamping mechanism 50 to drive the workpiece 1000 to rotate, and the linear drive assembly 61, the horizontal linear motor 251, and the vertical linear motor 222 can cooperate to enable the vertical slider 221 to move relative to the workpiece 1000 in the X direction 200, Y direction 300, and Z direction 400. Thus, the cutting assembly 21 and the probe assembly 24 provided on the vertical slider 221 can move relative to the workpiece 1000 in the X direction 200, Y direction 300, and Z direction 400, which is beneficial for the probe assembly 24 to completely scan the surface profile of the workpiece 1000.

[0055] In one embodiment, the probe assembly 24 includes a first probe and a second probe. The first probe is arranged along the movement direction of the lifting assembly, that is, it extends along the Z direction 400; the second probe is arranged perpendicular to the first probe, that is, the second probe extends along the X direction 200. The first probe is used to determine the position of the workpiece 1000 in the vertical direction or detect the surface profile of the circumferential surface of the workpiece 1000; the second probe is used to determine the position of the workpiece 1000 in the horizontal direction or detect the surface profile of the end face of the workpiece 1000.

[0056] It should be understood that the workpiece 1000 can be a workpiece to be processed, a finished workpiece, and a template. The probe assembly 24 has at least three working modes, which are: 1. Determine the position of the workpiece to be processed; 2. Detect the yield rate of the finished workpiece; 3. Obtain the surface profile of the template workpiece.

[0057] In an embodiment of this implementation manner, please refer to Figure 1 、 Figure 3 and Figure 8 , Figure 8 is Figure 1 a schematic structural diagram of a part of the structure of the five-axis grinding machine 100. The five-axis grinding machine 100 further includes a grinding wheel dressing mechanism 70 that can dress the grinding wheel 211 in the cutting assembly 21. The grinding wheel dressing mechanism 70 is movably connected to the base 10, and the grinding wheel dressing mechanism 70 can move relative to the base 10 to approach or move away from the cutting assembly 21. Specifically, the grinding wheel dressing mechanism 70 includes a dressing assembly, a linear guide rail 1011, and a cylinder 1012. The dressing assembly is slidably matched with the linear guide rail 1011, and the driving end of the cylinder 1012 is connected to the grinding wheel dressing mechanism 70.

[0058] In one embodiment, the sand dressing mechanism 70 is installed on the rotary drive assembly 60, and the rotary drive assembly 60 and the linear drive assembly 61 can drive the clamping mechanism 50, the center mechanism 80 and the sand dressing mechanism 70 to move synchronously. It can be understood that the air cylinder 1012 can drive the sand dressing assembly to approach or move away from the cutting assembly 21 along the linear guide rail 1011. When the sand dressing assembly approaches the cutting assembly 21, the grinding wheel 211 can be dressed. When the sand dressing assembly moves away from the cutting assembly 21, the risk of interference between the sand dressing assembly and the grinding wheel 211 can be reduced, which is beneficial to the normal operation of the grinding wheel 211. Among them, both the linear guide rail 1011 and the air cylinder 1012 can be installed on the drive end of the rotary drive assembly 60. The sand dressing mechanism 70 can approach or move away from the cutting assembly 21 in the cutting mechanism 20 synchronously with the clamping mechanism 50 and the center mechanism 80 under the drive of the linear drive assembly 61, and can rotate synchronously with the clamping mechanism 50 and the center mechanism 80 relative to the cutting assembly 21 in the cutting mechanism 20 under the drive of the rotary drive assembly 60. In this embodiment, the cutting assembly 21, the clamping mechanism 50 and the center mechanism 80 can perform synchronous movement or relative movement, with extremely high flexibility; and during the rotation of the sand dressing mechanism 70, the relative direction with the grinding wheel 211 changes, which is beneficial to dressing the grinding wheel 211 by the sand dressing mechanism 70 at multiple angles.

[0059] In one embodiment of this implementation manner, please refer to Figure 1 , Figure 3 and Figure 8 , the sand dressing mechanism 70 further includes a sand dressing probe 71. The sand dressing probe 71 can be in contact with the grinding wheel 211 and is used to measure the radius of the grinding wheel 211. By measuring the radii of various parts on the circumferential surface of the grinding wheel 211, the dressing amount of the grinding wheel 211 can be determined, which is beneficial to correcting the grinding wheel 211 according to the actual wear condition of the grinding wheel 211, thereby reducing the risk of insufficient or excessive dressing of the processed grinding wheel 211.

[0060] Specifically, both the linear guide rail 1011 and the air cylinder 1012 are arranged on the drive end of the rotary drive assembly 60. The sand dressing assembly includes a sand dressing grinding wheel 72 and a sand dressing driver 73. The sand dressing grinding wheel 72 is connected to the sand dressing driver 73. The sand dressing driver 73 is in sliding fit with the linear guide rail 1011. The sand dressing probe 71 is rotatably arranged on the sand dressing driver 73. The rotation axis of the sand dressing probe 71 is parallel to the horizontal plane. When the sand dressing probe 71 rotates to the first position, the sand dressing probe 71 extends in the vertically upward direction. When the sand dressing probe 71 rotates to the second position, the extension direction of the sand dressing probe 71 is parallel to the horizontal plane.

[0061] It can be understood that the dressing drive 73 can drive the dressing grinding wheel 72 to rotate, so that the dressing grinding wheel 72 can dress the grinding wheel 211. The dressing probe 71 is arranged on the dressing drive 73, so that the dressing probe 71 can move synchronously with the dressing drive 73 and the dressing grinding wheel 72 on the linear guide 1011, thereby reducing the position deviation between the dressing probe 71 and the dressing grinding wheel 72, and further improving the dressing accuracy of the grinding wheel 211. The dressing probe 71 can measure the radius of each part on the circumferential surface of the grinding wheel 211 to determine the dressing amount of the grinding wheel 211, which is beneficial to correcting the grinding wheel 211 according to the actual wear condition of the grinding wheel 211, thereby reducing the risk of insufficient or excessive dressing of the processed grinding wheel 211. When the dressing probe 71 rotates to the first position, the detection end of the dressing probe 71 approaches the grinding wheel 211, so that it can abut against the grinding wheel 211. When the dressing probe 71 rotates to the second position, the detection end of the dressing probe 71 is far away from the dressing grinding wheel 72, which can reduce the risk of interference between the dressing probe 71 and the dressing grinding wheel 72 during the dressing process, thereby reducing the risk of damage to the dressing probe 71.

[0062] In an embodiment of this embodiment, please refer to Figure 9 , the manipulator 40 includes a first swing arm 41, a second swing arm 42, a rotary cylinder 43, a working cylinder 44 and a pipeline 45. The first swing arm 41 is installed on the lifting assembly 22. A wire groove 411 is provided on the first swing arm 41. The first swing arm 41 and the second swing arm 42 are connected by the rotary cylinder 43. The rotary cylinder 43 can drive the second swing arm 42 to rotate relative to the first swing arm 41. A wire passing hole 431 is provided on the rotating shaft of the rotary cylinder 43. The wire passing hole 431 communicates with the wire groove 411. The working cylinder 44 is arranged on the second swing arm 42. The pipeline 45 is communicated with the working cylinder 44 and is routed along the wire passing hole 431 and the wire groove 411. The working cylinder 44 is used to transfer the workpiece 1000.

[0063] Specifically, one end of the first swing arm 41 is connected to the lifting assembly 22, and the other end of the first swing arm 41 extends to one side and is connected to the rotary cylinder 43. The extending direction of the wire groove 411 is the same as the extending direction of the first swing arm 41. The axis of the wire passing hole 431 coincides with the rotation axis of the rotating shaft of the rotary cylinder 43. The working cylinder 44 is a clamping jaw cylinder, and the corresponding pipeline 45 is an air pipe. In other embodiments, the working cylinder 44 is a clamping hydraulic cylinder 31, and the pipeline 45 is a hydraulic pipe 34. Or, the working cylinder 44 is an electric cylinder, and the pipeline 45 is a cable. It can be understood that the wire groove 411 forms a cavity (not numbered) inside the first swing arm 41, and a part of the pipeline 45 is located in this cavity and is surrounded by the first swing arm 41, which is beneficial to realizing the internal wiring of the manipulator 40. The axis of the wire passing hole 431 coincides with the rotation axis of the rotating shaft of the rotary cylinder 43, which is beneficial to reducing the risk of the pipeline 45 being broken when the second swing arm 42 rotates relative to the first swing arm 41. The clamping jaw cylinder can be used to clamp the workpiece 1000.

[0064] It can be understood that, on the one hand, the first swing arm 41 and the second swing arm 42 are connected by a rotary cylinder 43. By directly driving the second swing arm 42 to rotate relative to the first swing arm 41 through the rotary cylinder 43, the power provided by the rotary cylinder 43 can be utilized. On the other hand, a wire passing hole 431 is provided on the rotating shaft of the rotary cylinder 43, enabling internal wiring of the manipulator 40 through the rotary cylinder 43.

[0065] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art, various changes can be made without departing from the gist of the present invention. In addition, the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

Claims

1. A five-axis knife grinder, characterized in that, Comprising: A base; A cutting mechanism, including a cutting assembly and a probe assembly, the probe assembly being mounted on the cutting assembly, the probe assembly being used to determine the position of the workpiece and / or serving as a signal acquisition end to detect the surface profile of the workpiece; A moving mechanism, including a lifting assembly and a balancing assembly, the lifting assembly being mounted on the base, the lifting assembly being able to drive the cutting assembly to lift relative to the base, the balancing assembly providing a driving force to the lifting assembly to balance the vertical load of the lifting assembly; A clamping mechanism, mounted on the base, for fixing the workpiece; A manipulator, mounted on the lifting assembly, and used to transfer the workpiece to be processed to the clamping mechanism.

2. The five-axis grinding machine according to claim 1, characterized in that, The balancing assembly includes a hydraulic cylinder, an oil storage tank, and a pressure regulator. The hydraulic cylinder is disposed on the base and is connected to the lifting assembly. The hydraulic cylinder can provide a driving force to balance the vertical load of the lifting assembly. The oil storage tank is connected to the hydraulic cylinder, and the pressure regulator is connected to the oil storage tank. The pressure regulator and the oil storage tank can cooperate to adjust the driving force of the hydraulic cylinder.

3. The five-axis grinding machine according to claim 2, wherein, The piston rod of the hydraulic cylinder is connected to the base, and the cylinder body of the hydraulic cylinder is disposed on the lifting assembly.

4. The five-axis grinding machine according to claim 1, characterized in that, The five-axis grinding machine further includes a center mechanism. The clamping mechanism is used to fix one end of the workpiece, and the center mechanism is used to abut against the other end of the workpiece; The center mechanism includes a center piece, and the center piece can approach or move away from the clamping mechanism.

5. The five-axis grinding machine according to claim 4, characterized in that, A rotary drive assembly and a linear drive assembly are disposed on the base. The linear drive assembly is mounted on the base. The rotary drive assembly is connected to the linear drive assembly. The center mechanism and the clamping mechanism are both mounted on the rotary drive assembly. The rotary drive assembly and the linear drive assembly can drive the clamping mechanism and the center mechanism to move synchronously.

6. The five-axis knife grinder according to claim 1, wherein, The moving mechanism further includes a horizontal moving assembly. The horizontal moving assembly is mounted on the base. The lifting assembly is movably disposed on the driving end of the horizontal moving assembly in the vertical direction. The horizontal moving assembly can drive the cutting mechanism to move horizontally relative to the base, and the lifting assembly can drive the cutting mechanism to lift relative to the base.

7. The five-axis knife grinder according to claim 5, characterized in that, The five-axis grinding machine further includes a dressing mechanism. The dressing mechanism is movably connected to the base, and the dressing mechanism can move relative to the base to approach or move away from the cutting assembly; The cutting assembly includes a grinding wheel, and the grinding wheel is used to grind the workpiece. The dressing mechanism can dress the grinding wheel.

8. The five-axis grinding machine according to claim 7, wherein, The dressing mechanism is mounted on the rotary drive assembly. The rotary drive assembly and the linear drive assembly can drive the clamping mechanism, the center mechanism, and the dressing mechanism to move synchronously; the dressing mechanism includes a dressing probe, and the dressing probe can abut against the grinding wheel and is used to measure the radius of the grinding wheel.

9. The five-axis knife grinder according to claim 1, wherein The moving mechanism further includes a horizontal moving assembly. The horizontal moving assembly is mounted on the base, and the lifting assembly is mounted on the driving end of the horizontal moving assembly.

10. The five-axis knife grinder according to claim 1, characterized in that, The manipulator includes a first swing arm, a second swing arm, a rotary cylinder, a working cylinder and pipelines. The first swing arm is installed on the lifting assembly. A wire groove is formed in the first swing arm. The first swing arm and the second swing arm are connected by the rotary cylinder. The rotary cylinder can drive the second swing arm to rotate relative to the first swing arm. A wire through hole is formed in the rotating shaft of the rotary cylinder, and the wire through hole communicates with the wire groove. The working cylinder is arranged on the second swing arm. The pipeline is communicated with the working cylinder and is routed along the wire through hole and the wire groove. The working cylinder is used for transferring the workpiece.

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