Multi-angle positioning detection device for axis positioning precision of five-axis numerical control milling machine

Abstract

The invention relates to the technical field of five-axis numerical control milling machines, and provides a multi-angle positioning detection device for axis positioning precision of a five-axis numerical control milling machine, which comprises a five-axis numerical control milling machine body, a fixed seat is fixedly mounted on a machining table of the five-axis numerical control milling machine body, and a dial indicator is fixedly mounted on the fixed seat. A main shaft ball is mounted on an A shaft of the five-axis numerical control milling machine body, an inverted-L-shaped plate is fixedly mounted on a B shaft of the five-axis numerical control milling machine body, a first fixing plate is fixedly mounted at the bottom of the inverted-L-shaped plate, and a U-shaped frame is driven by a first motor, so that the U-shaped frame can drive a fixing ring and a camera to perform angle adjustment under the action of a first connecting rod; and then under the cooperation of the angle adjusting assembly, the angle adjusting range of the camera can be expanded, so that the camera can accurately shoot and recognize, high precision is kept, meanwhile, an unexperienced operator can complete a complex alignment task through simple interface guidance, and the stability and reliability of the detection process are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of five-axis numerically controlled milling machines, and in particular to a multi-angle positioning detection device for the fixed axis accuracy of a five-axis numerically controlled milling machine. Background Art

[0002] The five-axis linkage CNC machine tool is a machine tool with high technological content and high precision, which is specially used for processing complex curved surfaces. This machine tool system has a significant influence on a country's aviation, aerospace, military, scientific research, precision instruments, high-precision medical equipment and other industries. The five-axis linkage CNC machine tool system is a means to solve the processing of impellers, blades, marine propellers, heavy generator rotors, turbine rotors, large diesel engine crankshafts, etc.

[0003] It is known that China's publicly authorized patent CN217143307U discloses a five-axis CNC machine tool RTCP detection device, including: a fixed seat, a fixed rod, a Y-axis micrometer and a Z-axis micrometer; the fixed rod is fixed on the fixed seat, and the Y-axis micrometer and the Z-axis micrometer are respectively fixed to the upper end of the fixed rod, the needle of the Y-axis micrometer and the needle of the Z-axis micrometer are cross-arranged, and the needle of the Z-axis micrometer is higher than the dial of the Y-axis micrometer. This five-axis CNC machine tool RTCP detection device has a simple structure and good structural rigidity, thereby being able to improve detection accuracy.

[0004] However, in the implementation of relevant technologies, it was found that the above-mentioned scheme has the following problems: low alignment accuracy, long alignment time, high requirements on operators, and the results of each alignment may be inconsistent, resulting in unstable measurement results and affecting the reliability of detection. Secondly, the existing technology has poor protection effect when in use, and is easily affected by external environmental factors such as vibration during detection, resulting in unreliable detection results. Summary of the invention

[0005] The present invention proposes a multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine, which solves the problems in the related technology of low alignment accuracy, long alignment time, high requirements on operators, and inconsistent results of each alignment, resulting in unstable measurement results and affecting the reliability of detection. Secondly, the existing technology has poor protection effect when in use, and is easily affected by external environmental factors such as vibration during detection, resulting in unreliable detection results.

[0006] The technical solution of the present invention is as follows: a multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine, comprising a five-axis CNC milling machine body, a fixed seat is fixedly installed on the processing table of the five-axis CNC milling machine body, a micrometer is fixedly installed on the fixed seat, and a spindle ball is installed on the A axis of the five-axis CNC milling machine body; An inverted L-plate is fixedly installed on the B axis of the five-axis CNC milling machine body, a first fixed plate is fixedly installed on the bottom of the inverted L-plate, a first motor is fixedly installed on one side of the first fixed plate through a motor frame, a U-shaped frame is fixedly installed on the output end of the first motor, and first connecting rods are rotatably installed on both side walls of the U-shaped frame; A fixing ring is provided inside the U-shaped frame, a camera is fixedly installed inside the fixing ring, and one end of each of the two first connecting rods is fixedly connected to the fixing ring; An angle adjustment component is provided at the bottom of the inverted L-plate, and one end of the angle adjustment component is connected to the fixing ring; A shock absorbing assembly is arranged below the five-axis CNC milling machine body, and the five-axis CNC milling machine body is fixedly mounted on the shock absorbing assembly.

[0007] Through the above technical solution, high-precision automatic alignment can be achieved, so that inexperienced operators can also complete complex alignment tasks through simple interface guidance, ensuring the stability and reliability of the detection process. At the same time, the five-axis CNC milling machine body can be buffered and shock-absorbing, reducing the vibration generated by the five-axis CNC milling machine body during operation, thereby ensuring stability and measurement accuracy during the measurement process.

[0008] Preferably, the angle adjustment assembly comprises a second fixing plate fixedly mounted on the bottom of the inverted L-plate, a second motor is fixedly mounted on one side of the second fixing plate via a motor frame, and a first connecting frame is fixedly mounted on an output end of the second motor; A second connecting rod is rotatably mounted on one side of the first connecting frame near the end, a second connecting frame is rotatably mounted on the outer side wall of the second connecting rod, a third connecting rod is rotatably mounted on one side of the second connecting frame near the end, and one end of the third connecting rod is connected to the fixing ring.

[0009] Through the above technical solution, the range of camera angle adjustment can be increased, so that the camera can be flexibly adjusted.

[0010] Preferably, the shock absorbing assembly includes a mounting seat arranged below the five-axis CNC milling machine body, and a plurality of buffer mechanisms are arranged in a straight line on the inner bottom wall of the mounting seat, and an H-shaped frame is fixedly mounted on the other ends of the plurality of buffer mechanisms, and the five-axis CNC milling machine body is fixedly mounted on the H-shaped frame.

[0011] Through the above technical solution, the five-axis CNC milling machine body can be buffered and shock-absorbed, reducing the vibration generated by the five-axis CNC milling machine body during operation, thereby ensuring stability and measurement accuracy during the measurement process.

[0012] Preferably, both ends of the mounting seat are provided with grooves, a plurality of first springs are arranged in a straight line inside the grooves, and the bottoms of the plurality of first springs are fixedly connected to the mounting seat; Two rectangular plates are fixedly mounted on the bottom of the H-shaped frame, and the two rectangular plates are plugged into the two grooves respectively.

[0013] Through the above technical solution, the buffering and shock-absorbing effects of the five-axis CNC milling machine body and the shock-absorbing assembly can be further improved.

[0014] Preferably, four dampers are fixedly mounted in a square arrangement on the inner bottom wall of the mounting seat, and the tops of the four dampers are fixedly connected to the H-shaped frame.

[0015] Through the above technical solution, the kinetic energy of the buffer mechanism and the first spring can be consumed.

[0016] Preferably, a pair of connecting plates are fixedly installed on both sides of the mounting seat, screw rods are provided through the two pairs of connecting plates, and the screw rods are threadedly connected to the connecting plates, and a suction cup is fixedly installed on the bottom of the screw rods.

[0017] Through the above technical solution, the stability performance of the five-axis CNC milling machine body and the shock absorbing component during use can be improved, so that it is not easy to be displaced due to external factors during use.

[0018] Preferably, the buffer mechanism comprises a cross-shaped frame fixedly mounted on the inner bottom wall of the mounting seat, a mounting rod is arranged in the notch of the cross-shaped frame, and both ends of the mounting rod are fixedly connected to the cross-shaped frame; A plurality of second springs and connecting blocks are respectively arranged on the outer side walls of the mounting rod, and the connecting block is located in the middle of the second spring; A first articulated frame is fixedly installed on the top of each of the connection blocks, a strip plate is connected to the inner pin of the first articulated frame, a second articulated frame is fixedly installed on the bottom of the H-shaped frame, and the other end pin of the strip plate is connected to the second articulated frame.

[0019] Through the above technical solution, the H-shaped frame and the five-axis CNC milling machine body can be buffered and shock-absorbed, thereby reducing the vibration generated by the five-axis CNC milling machine body during operation and ensuring stability and measurement accuracy during the measurement process.

[0020] Preferably, a semicircular ball groove is provided at the bottom of the connecting block, a ball is arranged inside the semicircular ball groove, and an outer side wall of the ball is in contact with the mountain frame.

[0021] Through the above technical solution, the friction between the connecting block and the crossbar and the mounting rod can be effectively reduced.

[0022] The working principle and beneficial effects of the present invention are: 1. The U-shaped frame is driven by the first motor, so that the U-shaped frame can drive the fixed ring and the camera to adjust the angle under the action of the first connecting rod, and then with the cooperation of the angle adjustment component, the camera angle adjustment range can be increased, so that the camera can accurately shoot and identify, while maintaining high precision, so that inexperienced operators can also complete complex alignment tasks through simple interface guidance, ensuring the stability and reliability of the detection process.

[0023] 2. The shock-absorbing component can be used to buffer and reduce the vibration of the five-axis CNC milling machine body during operation. At the same time, with the cooperation of the first spring and the rectangular plate, the buffering and shock-absorbing effect can be improved, thereby effectively reducing the vibration generated by the five-axis CNC milling machine body during operation, thereby ensuring the stability and measurement accuracy during the measurement process.

[0024] 3. By manually rotating the screw on the connecting plate, the screw drives the suction cup to descend and adsorb to the ground, thereby improving the stability of the five-axis CNC milling machine body and the shock absorbing assembly during use, so that it is not easy to be displaced due to external factors during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention; Figure 2 A side view schematic diagram of the structure of the present invention; Figure 3 The present invention provides a structural schematic diagram of a five-axis CNC milling machine body; Figure 4 A schematic diagram of the structure of the angle adjustment assembly proposed in the present invention; Figure 5 The present invention provides a schematic structural diagram of the shock absorbing mechanism; Figure 6 The present invention provides a schematic structural diagram of a shock absorbing assembly; Figure 7 A structural schematic diagram of a connection block is provided for the present invention; Figure 8 The present invention proposes Figure 1 A in the figure is an enlarged structural diagram.

[0027] In the figure: 1. Five-axis CNC milling machine body; 2. Fixed seat; 3. Micrometer; 4. Spindle ball; 5. Inverted L plate; 6. First fixed plate; 7. First motor; 8. U-shaped frame; 9. First connecting rod; 10. Fixed ring; 11. Camera; 12. Angle adjustment assembly; 1201. Second fixing plate; 1202. Second motor; 1203. First connecting frame; 1204. Second connecting frame; 1205. Third connecting rod; 13. shock absorbing assembly; 1301. mounting seat; 1302. buffer mechanism; 1303. H-shaped frame; 13021. mountain-shaped frame; 13022. mounting rod; 13023. second spring; 13024. connecting block; 13025. strip plate; 14. Ball; 15. Groove; 16. First spring; 17. Rectangular plate; 18. Damper; 19. Connecting plate; 20. Screw rod; 21. Suction cup. DETAILED DESCRIPTION

[0028] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1 See also Figure 1 - Figure 8 A multi-angle positioning detection device for the fixed axis precision of a five-axis CNC milling machine comprises a five-axis CNC milling machine body 1, a fixed seat 2 is fixedly installed on the processing table of the five-axis CNC milling machine body 1, a micrometer 3 is fixedly installed on the fixed seat 2, and a spindle ball 4 is installed on the A axis of the five-axis CNC milling machine body 1; An inverted L-plate 5 is fixedly installed on the B axis of the five-axis CNC milling machine body 1, a first fixed plate 6 is fixedly installed on the bottom of the inverted L-plate 5, a first motor 7 is fixedly installed on one side of the first fixed plate 6 through a motor frame, a U-shaped frame 8 is fixedly installed on the output end of the first motor 7, and first connecting rods 9 are rotatably installed on both side walls of the U-shaped frame 8; A fixing ring 10 is provided inside the U-shaped frame 8, a camera 11 is fixedly installed inside the fixing ring 10, and one end of the two first connecting rods 9 are fixedly connected to the fixing ring 10; An angle adjustment component 12 is disposed at the bottom of the inverted L-plate 5 , and one end of the angle adjustment component 12 is connected to the fixing ring 10 .

[0030] The present invention provides a multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine. When in use, the camera 11 is used to enable the spindle ball 4 to contact the micrometer 3, so that high-precision automatic alignment can be achieved. At the same time, inexperienced operators can also complete complex alignment tasks through simple interface guidance, thereby ensuring the stability and reliability of the detection process. Then, the U-shaped frame 8 is driven to rotate by the first motor 7, and then the rotating U-shaped frame 8 drives the fixing ring 10 under the action of the first connecting rod 9, so that the angle of the camera 11 can be adjusted. After the adjustment is completed, the fixing ring 10 is driven by the angle adjustment component 12, so that the fixing ring 10 can drive the camera 11 to move under the action of the first connecting rod 9, thereby increasing the angle adjustment range of the camera 11 and enabling the camera 11 to be flexibly adjusted.

[0031] Furthermore, the angle adjustment assembly 12 includes a second fixing plate 1201 fixedly mounted on the bottom of the inverted L-plate 5, a second motor 1202 is fixedly mounted on one side of the second fixing plate 1201 through a motor frame, and a first connecting frame 1203 is fixedly mounted on the output end of the second motor 1202; A second connecting rod is rotatably mounted on one side of the first connecting frame 1203 near the end, a second connecting frame 1204 is rotatably mounted on the outer wall of the second connecting rod, a third connecting rod 1205 is rotatably mounted on one side of the second connecting frame 1204 near the end, and one end of the third connecting rod 1205 is connected to the fixing ring 10.

[0032] Specifically, the first connecting frame 1203 is driven to rotate by the second motor 1202, and then the rotating first connecting frame 1203 drives the second connecting frame 1204 under the action of the second connecting rod, so that the second connecting frame 1204 can drive the U-shaped frame 8 and the fixing ring 10 on the first connecting rod 9 to tilt through the third connecting rod 1205, thereby increasing the angle adjustment range of the camera 11.

[0033] Embodiment 2 Based on Example 1, in this embodiment: a shock absorbing assembly 13 is arranged below the five-axis CNC milling machine body 1, and the five-axis CNC milling machine body 1 is fixedly installed on the shock absorbing assembly 13, the shock absorbing assembly 13 includes a mounting seat 1301 arranged below the five-axis CNC milling machine body 1, and a plurality of buffer mechanisms 1302 are arranged in a straight line on the inner bottom wall of the mounting seat 1301, and an H-shaped frame 1303 is fixedly installed on the other ends of the plurality of buffer mechanisms 1302, and the five-axis CNC milling machine body 1 is fixedly installed on the H-shaped frame 1303.

[0034] The technical solution provided by this embodiment is: when the five-axis CNC milling machine body 1 is running, the five-axis CNC milling machine body 1 drives the H-shaped frame 1303 to descend and squeeze the buffer mechanism 1302, and then the buffer mechanism 1302 can buffer and dampen the H-shaped frame 1303, thereby effectively reducing the vibration generated by the five-axis CNC milling machine body 1 during operation, thereby ensuring stability and measurement accuracy during the measurement process.

[0035] Furthermore, grooves 15 are provided at both ends of the mounting seat 1301, and a plurality of first springs 16 are arranged in a straight line inside the grooves 15, and the bottoms of the plurality of first springs 16 are fixedly connected to the mounting seat 1301; Two rectangular plates 17 are fixedly mounted on the bottom of the H-shaped frame 1303 , and the two rectangular plates 17 are plugged into the two grooves 15 respectively.

[0036] Specifically, when the H-shaped frame 1303 descends, the H-shaped frame 1303 will drive the rectangular plate 17 to descend synchronously, and squeeze the first spring 16 inside the groove 15, and then under the action of the first spring 16, the buffering and shock-absorbing effect of the five-axis CNC milling machine body 1 and the shock-absorbing assembly 13 can be improved.

[0037] Furthermore, four dampers 18 are fixedly mounted in a square arrangement on the inner bottom wall of the mounting seat 1301 , and the tops of the four dampers 18 are fixedly connected to the H-shaped frame 1303 .

[0038] Specifically, the damper 18 can provide resistance to movement, thereby dissipating the movement energy of the buffer mechanism 1302 and the first spring 16 .

[0039] Furthermore, the buffer mechanism 1302 includes a bracket 13021 fixedly mounted on the inner bottom wall of the mounting seat 1301, a mounting rod 13022 is arranged in the notch of the bracket 13021, and both ends of the mounting rod 13022 are fixedly connected to the bracket 13021; A plurality of second springs 13023 and a connection block 13024 are respectively disposed on the outer side wall of the mounting rod 13022, and the connection block 13024 is located in the middle of the second spring 13023; A first articulated frame is fixedly installed on the top of multiple connecting blocks 13024, the inner side pin of the first articulated frame is connected to a strip plate 13025, the other end pin of the strip plate 13025 is connected to a second articulated frame, and the second articulated frame is fixedly installed on the bottom of the H-shaped frame 1303.

[0040] Specifically, when the H-shaped frame 1303 descends, the H-shaped frame 1303 will synchronously drive the second articulated frame to descend, and then the descending second articulated frame will squeeze the strip plate 13025, so that the strip plate 13025 can drive the connecting block 13024 on the mounting rod 13022 to move and squeeze the second spring 13023 through the first articulated frame, and finally the connecting block 13024 is buffered by the second spring 13023, thereby reducing the vibration generated by the five-axis CNC milling machine body 1 during operation, thereby ensuring stability and measurement accuracy during the measurement process.

[0041] Furthermore, a semicircular ball groove is provided at the bottom of the connecting block 13024 , a ball 14 is provided inside the semicircular ball groove, and an outer side wall of the ball 14 is in contact with the mountain frame 13021 .

[0042] Specifically, the ball 14 in the semicircular ball groove can effectively reduce the friction between the connecting block 13024 and the crossbar 13021 and the mounting rod 13022 , thereby enabling the strip plate 13025 to drive the connecting block 13024 to slide on the mounting rod 13022 .

[0043] Embodiment 3 Based on Example 1, in this embodiment: a pair of connecting plates 19 are fixedly installed on both sides of the mounting seat 1301, and screw rods 20 are provided through both pairs of connecting plates 19, and the screw rods 20 are threadedly connected to the connecting plates 19, and a suction cup 21 is fixedly installed at the bottom of the screw rods 20.

[0044] The technical solution provided by this embodiment is: by manually rotating the hand wheel on the top of the screw rod 20, the screw rod 20 threadedly connected on the connecting plate 19 can drive the suction cup 21 to descend, and then the suction cup 21 can be adsorbed to the ground, which is beneficial to improve the stability of the device.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine, comprising a five-axis CNC milling machine body (1), characterized in that: A fixed seat (2) is fixedly mounted on the processing table of the five-axis CNC milling machine body (1), a micrometer (3) is fixedly mounted on the fixed seat (2), and a spindle ball (4) is mounted on the A axis of the five-axis CNC milling machine body (1); An inverted L-plate (5) is fixedly mounted on the B axis of the five-axis CNC milling machine body (1); a first fixed plate (6) is fixedly mounted on the bottom of the inverted L-plate (5); a first motor (7) is fixedly mounted on one side of the first fixed plate (6) via a motor frame; a U-shaped frame (8) is fixedly mounted on the output end of the first motor (7); and first connecting rods (9) are rotatably mounted on both side walls of the U-shaped frame (8); A fixing ring (10) is provided inside the U-shaped frame (8), a camera (11) is fixedly installed inside the fixing ring (10), and one end of each of the two first connecting rods (9) is fixedly connected to the fixing ring (10); An angle adjustment component (12) is provided at the bottom of the inverted L-plate (5), and one end of the angle adjustment component (12) is connected to the fixing ring (10); A shock absorbing component (13) is arranged below the five-axis CNC milling machine body (1), and the five-axis CNC milling machine body (1) is fixedly mounted on the shock absorbing component (13).

2. The multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine according to claim 1 is characterized in that: The angle adjustment assembly (12) comprises a second fixing plate (1201) fixedly mounted on the bottom of the inverted L-plate (5); a second motor (1202) is fixedly mounted on one side of the second fixing plate (1201) via a motor frame; and a first connecting frame (1203) is fixedly mounted on the output end of the second motor (1202); A second connecting rod is rotatably mounted on one side of the first connecting frame (1203) close to the end, a second connecting frame (1204) is rotatably mounted on the outer wall of the second connecting rod, a third connecting rod (1205) is rotatably mounted on one side of the second connecting frame (1204) close to the end, and one end of the third connecting rod (1205) is connected to the fixing ring (10).

3. The multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine according to claim 1 is characterized in that: The shock absorbing assembly (13) comprises a mounting seat (1301) arranged below the five-axis CNC milling machine body (1); a plurality of buffer mechanisms (1302) are arranged in a straight line on the inner bottom wall of the mounting seat (1301); an H-shaped frame (1303) is fixedly mounted on the other ends of the plurality of buffer mechanisms (1302); and the five-axis CNC milling machine body (1) is fixedly mounted on the H-shaped frame (1303).

4. The multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine according to claim 3 is characterized in that: Both ends of the mounting seat (1301) are provided with grooves (15), a plurality of first springs (16) are arranged in a straight line inside the grooves (15), and the bottoms of the plurality of first springs (16) are fixedly connected to the mounting seat (1301); Two rectangular plates (17) are fixedly mounted on the bottom of the H-shaped frame (1303), and the two rectangular plates (17) are respectively plugged into the two grooves (15).

5. The multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine according to claim 4 is characterized in that: Four dampers (18) are fixedly mounted in a square arrangement on the inner bottom wall of the mounting seat (1301), and the tops of the four dampers (18) are fixedly connected to the H-shaped frame (1303).

6. The multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine according to claim 5, characterized in that: A pair of connecting plates (19) are fixedly mounted on both sides of the mounting seat (1301), and screw rods (20) are provided through the two pairs of connecting plates (19). The screw rods (20) are threadedly connected to the connecting plates (19), and a suction cup (21) is fixedly mounted on the bottom of the screw rods (20).

7. The multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine according to claim 3 is characterized in that: The buffer mechanism (1302) comprises a cross-shaped frame (13021) fixedly mounted on the inner bottom wall of the mounting seat (1301), a mounting rod (13022) being arranged in a notch of the cross-shaped frame (13021), and both ends of the mounting rod (13022) being fixedly connected to the cross-shaped frame (13021); A plurality of second springs (13023) and a connecting block (13024) are respectively arranged on the outer side walls of the mounting rod (13022), and the connecting block (13024) is located in the middle of the second spring (13023); A first articulated frame is fixedly mounted on the top of each of the plurality of connection blocks (13024); a strip plate (13025) is connected to the inner pin of the first articulated frame; a second articulated frame is fixedly mounted on the bottom of the H-shaped frame (1303) via a pin at the other end of the strip plate (13025).

8. The multi-angle positioning detection device for the fixed axis accuracy of a five-axis CNC milling machine according to claim 7, characterized in that: A semicircular ball groove is provided at the bottom of the connecting block (13024), a ball (14) is arranged inside the semicircular ball groove, and an outer side wall of the ball (14) is in contact with the mountain frame (13021).

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