High-precision positioning device and method for a petal-shaped expansion pin center

Abstract

The application discloses a high-precision petal combined expansion pin center positioning device and method, relates to the field of high-precision, high-reliability and long-service-life transmission products, and comprises a grinding machine table, a first mounting rack is mounted at the tail end of the outer wall of the grinding machine table through bolts, sliding grooves are formed in the two sides of the grinding machine table, sliding blocks are mounted on the inner walls of the sliding grooves, and second mounting racks are mounted on one side of the sliding blocks. The first camera can be used for monitoring and acquiring the diameter of the guide rail mounting hole formed at the top of the linear guide rail in real time, and the diameter is sent to a main processor module. Whether the diameter of the guide rail mounting hole meets the limiting effect of the petal combined expansion pin is determined through the main processor module. Through the setting of the grinding machine table and the petal combined expansion pin, the use state of the linear guide rail can be simulated for grinding, the grinding state is consistent with the use state, the mounting precision of the linear guide rail is improved, and thus the use state of super-high precision is obtained.

Description

Technical Field

[0001] This invention relates to the field of high-precision, high-reliability, and long-life transmission products, and is applied to the processing of ball linear guide components. Specifically, it relates to a high-precision interlocking expansion pin center positioning device and method. Background Technology

[0002] During the grinding process of guide rails, there are extremely high requirements for the relative spacing of the raceways and the dimensions between each raceway and the reference surface. The accuracy of these requirements directly determines the grade of the product. For ultra-high precision products, the accuracy requirement is 0.005mm / 5m over the entire length range, and even higher requirements are required in special application scenarios.

[0003] In mass production grinding, guide rails are ground in dimensions of 4m-7m or even longer. To ensure straightness and raceway accuracy, the industry's ideal processing and fixing method is to simulate the usage state, that is, to lock the guide rails to the grinding machine with bolts. However, a single guide rail has nearly a hundred mounting holes, and tightening the bolts one by one is extremely time-consuming, significantly reducing production efficiency. Therefore, the industry generally uses magnetic fixing for grinding and fixing. However, magnetic grinding cannot simulate the final usage state of the guide rail, and thus it is difficult to obtain ultra-high precision products. In order to continuously and stably obtain ultra-high precision guide rails, there is an urgent need for a clamping device that can simulate bolt tightening processing and can be quickly fixed.

[0004] The existing defects of the flap-type expansion pin center positioning device are:

[0005] 1. Patent document JP2005224877A discloses a guide rail processing device. However, the above document cannot monitor the diameter of the guide rail mounting hole of different linear guide rails in real time, and the linear guide rail cannot be ground in the working state during grinding, which easily leads to the technical problem of low installation accuracy of the ground guide rail after processing.

[0006] 2. Patent document JP2003266261A discloses a guide rail processing method, but the process of fixing the guide rail in the above document is cumbersome and requires multiple positioning, resulting in low efficiency.

[0007] 3. Patent document JP2007054911A discloses guide rail processing equipment and processing method. However, the above document has a problem with uneven fixation of the guide rail, which can easily lead to a decrease in the straightness of the guide rail and a decrease in the installation accuracy of the guide rail.

[0008] 4. Patent document CN219113603U discloses a grinding machine for processing linear guideways. However, in the process of moving the guideway, the top of the guideway is prone to contact with the grinding machine table, resulting in scratches on the surface. Summary of the Invention

[0009] The purpose of this invention is to provide a high-precision flap-type expansion pin center positioning device and method to solve the technical problems mentioned in the background art.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a high-precision flap-type expansion pin center positioning device, comprising a grinding machine table, wherein a first mounting bracket is bolted to the tail end of the outer wall of the grinding machine table, and sliding grooves are provided on both sides of the grinding machine table, wherein a slider is installed on the inner wall of the sliding groove, and a second mounting bracket is installed on one side of the slider, and a linear guide rail is movably connected to the top of the grinding machine table, wherein a plurality of guide rail mounting holes are provided on the top of the linear guide rail;

[0011] A first power supply is installed at the center of the top of the first mounting bracket. A first camera is installed at the bottom of the first power supply via a cable passing through the center of the top of the first mounting bracket. The first camera is used to monitor the diameter of the guide rail mounting hole opened at the top of the linear guide rail in real time. The first camera is installed at the center of the bottom of the first mounting bracket by bolts. The first camera is electrically connected to a first data transmission module. The first data transmission module is electrically connected to a main processor module. The main processor module is electrically connected to an audible and visual alarm. The audible and visual alarm is installed on one side of the top of the first mounting bracket.

[0012] The top of the grinding machine table has several through holes. The inner wall of the through holes is movably connected with a flap-type expansion pin, and the front end of the outer wall of the flap-type expansion pin is installed on the inner wall of the guide rail mounting hole. The flap-type expansion pin is used to lock the linear guide rail.

[0013] Preferably, a first fixing block is installed at the front end of both sides of the grinding machine table. A first drive shaft is installed on the front of the first fixing block on one side of the grinding machine table. A first reducer is installed on the front of the first drive shaft through a drive rod. A first servo motor is installed on the front of the first reducer. A connecting block is installed on the outer wall of the first servo motor, and one end of the connecting block is installed on the top of the first fixing block by bolts. A drive belt is installed on the outer wall of the first drive shaft. A second drive shaft is installed on the other side of the inner wall of the drive belt, and the second drive shaft is installed on the front of the first fixing block on the other side of the grinding machine table.

[0014] Preferably, one end of the first drive shaft and the second drive shaft are each equipped with a threaded rod, and the thread on the outer wall of the threaded rod penetrates the front of the second mounting bracket. The other end of the threaded rod is equipped with a second fixing block, and the second fixing blocks are respectively installed on both sides of the grinding machine table.

[0015] Preferably, a second power supply is installed at the center of the top of the second mounting bracket, and a second camera is installed at the bottom of the second power supply via a cable passing through the center of the top of the second mounting bracket. The second camera is used to monitor in real time whether the through hole and the guide rail mounting hole are aligned. The second camera is installed at the center of the bottom of the second mounting bracket by bolts. The second camera is electrically connected to a second data transmission module, and the second data transmission module is electrically connected to the main processor module. The main processor module is electrically connected to a device controller, which is used to control the operation of the device according to the instructions sent by the main processor module.

[0016] Preferably, a first electric telescopic cylinder is installed at the bottom of both sides of the first mounting frame. The output end of the first electric telescopic cylinder passes through the bottom of both sides of the first mounting frame and is installed with a first moving block. One side of the first moving block is movably connected to the inner wall of the first mounting frame, and the other side of the first moving block is provided with a first groove. A first transmission roller is movably connected to the inner wall of the first groove. A second reducer is installed at the top of one set of the first moving blocks, and the output end of the second reducer is installed on the outer wall of the first transmission roller through a transmission rod. A second servo motor is installed at the input end of the second reducer.

[0017] Preferably, a second electric telescopic cylinder is installed at the bottom of both sides of the second mounting frame. The output end of the second electric telescopic cylinder passes through the bottom of both sides of the second mounting frame and is installed with a second moving block. One side of the second moving block is movably connected to the inner wall of the second mounting frame, and a second groove is opened on the other side of the second moving block. A second transmission roller is movably connected to the inner wall of the second groove.

[0018] Preferably, the flap-type expansion pin includes an outer cylinder and an inner core. An expansion pin fixing plate is installed at the bottom of the outer cylinder. A fixing platform is installed at the bottom of the expansion pin fixing plate via a fixing rod. A movable plate is installed at the bottom of the inner core through the top of the expansion pin fixing plate. The movable plate is installed at the bottom of the expansion pin fixing plate. Several first cylinders are installed at the bottom of the movable plate. The outer walls of the first cylinders are fitted into the middle of the top of the fixing platform.

[0019] Preferably, a plurality of second cylinders are installed on the outer side of the top of the fixed table, and the top of the second cylinders is installed on the bottom of the grinding machine table.

[0020] Preferably, the working steps of this high-precision interlocking expansion pin center positioning device are as follows:

[0021] S1. The diameter of the guide rail mounting hole opened on the top of the linear guide rail can be monitored and obtained in real time through the first camera, and sent to the main processor module. The main processor module determines whether the diameter of the guide rail mounting hole meets the effect of using the flap-type expansion pin for restriction.

[0022] S2. The distance between the two first moving blocks and the distance between the two second moving blocks are adjusted by the first electric telescopic cylinder and the second electric telescopic cylinder respectively. The linear guide rail can be driven to move by the setting of the second servo motor, the second reducer and the first transmission roller.

[0023] S3. The first servo motor and the first reducer drive the first transmission shaft to rotate. Then, through the setting of the transmission belt and the second transmission shaft, the two threaded rods can be driven to rotate simultaneously, adjusting the movement of the second mounting bracket. Then, through the second camera, it is possible to monitor in real time whether the through hole and the guide rail mounting hole are aligned.

[0024] S4. Adjust the height of the grinding machine table by using the second cylinder. When the second cylinder moves downward, it can insert the flap expansion pin into the guide rail mounting hole on the linear guide rail. Then, the first cylinder pulls the inner core downward, and the outer cylinder expands under force, locking the linear guide rail on the grinding machine table, simulating the state of screw locking, and improving the clamping accuracy.

[0025] Preferably, step S1 further includes the following steps:

[0026] S11. If the diameter of the guide rail mounting hole is determined to be insufficient for the effect of using a snap-fit ​​expansion pin, the audible and visual alarm will activate to remind staff to replace it.

[0027] Compared with the prior art, the beneficial effects of the present invention are:

[0028] 1. This invention uses a first camera to monitor and acquire the diameter of the guide rail mounting hole at the top of the linear guide rail in real time, and sends it to the main processor module. The main processor module determines whether the diameter of the guide rail mounting hole meets the effect of using a flap-type expansion pin for restriction. By setting up a grinding machine table and flap-type expansion pin, the linear guide rail can be simulated for grinding, so that the grinding state is consistent with the usage state, which is beneficial to improving the installation accuracy of the linear guide rail and thus obtaining an ultra-high precision usage state.

[0029] 2. This invention drives the first transmission shaft to rotate via a first servo motor and a first reducer. The transmission belt and second transmission shaft then simultaneously drive two threaded rods to rotate, adjusting the movement of the second mounting bracket. The sliding groove and slider improve the stability of the second mounting bracket's movement. The second camera monitors in real time whether the through hole aligns with the guide rail mounting hole. Combined with a cylinder, multiple interlocking expansion pins can be simultaneously inserted into the guide rail mounting hole to clamp and position the linear guide rail, thereby improving positioning efficiency.

[0030] 3. This invention can limit the stability of the outer cylinder of the split-type expansion pin by using the expansion pin fixing plate and fixing table. The height of the grinding machine table can be adjusted by the second cylinder. When the second cylinder moves downward, it can insert the split-type expansion pin into the guide rail mounting hole on the linear guide rail. Then, the inner core is pulled downward by the first cylinder, and the outer cylinder expands under force, locking the linear guide rail on the grinding machine table, simulating the state of screw locking, improving the clamping accuracy, thereby improving the straightness of the linear guide rail after grinding, and improving the installation accuracy during final use.

[0031] 4. This invention, by adjusting the distance between two first moving blocks and the distance between two second moving blocks according to the volume of different linear guides, can drive the linear guide to move by means of a first electric telescopic cylinder and a second electric telescopic cylinder respectively. By setting up a second servo motor, a second reducer and a first transmission roller, the linear guide can be driven to move. The setting of the second transmission roller helps to improve the stability and accuracy of the linear guide movement. Moreover, during the movement of the linear guide, the top of the linear guide does not contact the grinding machine table, which can ensure a smooth and flat surface. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the system flow structure of the present invention;

[0033] Figure 2 This is a three-dimensional schematic diagram of the overall structure of the present invention;

[0034] Figure 3 For the present invention Figure 2 Schematic diagram of the structure at point A in the middle;

[0035] Figure 4 This is a schematic diagram of the fixed platform structure of the present invention;

[0036] Figure 5 This is a schematic diagram of the expansion pin fixing plate structure of the present invention;

[0037] Figure 6 This is a schematic diagram of the overall front cross-sectional structure of the present invention;

[0038] Figure 7 For the present invention Figure 6 Schematic diagram of the structure at point B;

[0039] Figure 8 This is a schematic diagram of the second cylinder extension structure of the present invention;

[0040] Figure 9 This is a schematic diagram of the workflow of the present invention.

[0041] In the diagram: 1. Grinding machine table; 2. First mounting bracket; 3. Slide rail; 4. Slider; 5. Second mounting bracket; 6. Linear guide rail; 7. Guide rail mounting hole; 8. First power supply; 9. First camera; 10. First data transmission module; 11. Main processor module; 12. Audible and visual alarm; 13. Through hole; 14. Split-type expansion pin; 15. First fixing block; 16. First drive shaft; 17. First reducer; 18. First servo motor; 19. Connecting block; 20. Drive belt; 21. Second drive shaft; 22. Threaded rod; 23. Second fixing block. 24. Fixed block; 25. Second power supply; 26. Second camera; 27. Second data transmission module; 28. Device controller; 29. ​​First electric telescopic cylinder; 30. First moving block; 31. First groove; 32. Second transmission roller; 33. Second reducer; 34. Second servo motor; 35. Second electric telescopic cylinder; 36. Second moving block; 37. Second groove; 38. Second transmission roller; 39. Outer cylinder; 40. Inner core; 41. Expansion pin fixing plate; 42. Fixed platform; 43. Moving plate; 44. First cylinder; 45. Second cylinder. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0045] Example 1: Please refer to Figure 1 and Figure 2 An embodiment of the present invention provides a high-precision flap-type expansion pin center positioning device, including a grinding machine table 1, a first mounting bracket 2 is bolted to the tail end of the outer wall of the grinding machine table 1, a sliding groove 3 is provided on both sides of the grinding machine table 1, a slider 4 is installed on the inner wall of the sliding groove 3, a second mounting bracket 5 is installed on one side of the slider 4, and a linear guide rail 6 is movably connected to the top of the grinding machine table 1, and a plurality of guide rail mounting holes 7 are provided on the top of the linear guide rail 6.

[0046] A first power supply 8 is installed at the center of the top of the first mounting bracket 2. A first camera 9 is installed at the center of the top of the first mounting bracket 2 via a cable passing through the bottom of the first power supply 8. The first camera 9 is used to monitor the diameter of the guide rail mounting hole 7 opened at the top of the linear guide rail 6 in real time. The first camera 9 is installed at the center of the bottom of the first mounting bracket 2 by bolts. The first camera 9 is electrically connected to a first data transmission module 10. The first data transmission module 10 is electrically connected to a main processor module 11. The main processor module 11 is electrically connected to an audible and visual alarm 12. The audible and visual alarm 12 is installed on one side of the top of the first mounting bracket 2.

[0047] The top of the grinding machine table 1 has several through holes 13. The inner wall of the through hole 13 is movably connected with a flap-type expansion pin 14, and the front end of the outer wall of the flap-type expansion pin 14 is installed on the inner wall of the guide rail mounting hole 7. The flap-type expansion pin 14 is used to lock the linear guide rail 6.

[0048] Furthermore, the first camera 9 can monitor and acquire the diameter of the guide rail mounting hole 7 opened on the top of the linear guide rail 6 in real time, and send it to the main processor module 11. The main processor module 11 determines whether the diameter of the guide rail mounting hole 7 meets the effect of limiting it with the interlocking expansion pin 14. By setting the grinding machine table 1 and the interlocking expansion pin 14, the use state of the linear guide rail 6 can be simulated for grinding, so that the grinding state is consistent with the use state, which is conducive to improving the installation accuracy of the linear guide rail 6, and thus obtaining an ultra-high precision use state.

[0049] Example 2: Please refer to Figure 2 and Figure 3An embodiment of the present invention is provided as follows: a first fixing block 15 is installed on the front end of both sides of the grinding machine table 1. A first transmission shaft 16 is installed on the front of the first fixing block 15 on one side of the grinding machine table 1. A first reducer 17 is installed on the front of the first transmission shaft 16 through a transmission rod. A first servo motor 18 is installed on the front of the first reducer 17. A connecting block 19 is installed on the outer wall of the first servo motor 18, and one end of the connecting block 19 is installed on the top of the first fixing block 15 by bolts. A transmission belt 20 is installed on the outer wall of the first transmission shaft 16. A second transmission shaft 21 is installed on the other side of the inner wall of the transmission belt 20, and the second transmission shaft 21 is installed on the front of the first fixing block 15 on the other side of the grinding machine table 1.

[0050] A threaded rod 22 is installed at one end of the first drive shaft 16 and the second drive shaft 21, and the thread on the outer wall of the threaded rod 22 penetrates the front of the second mounting bracket 5. A second fixing block 23 is installed at the other end of the threaded rod 22, and the second fixing blocks 23 are respectively installed on both sides of the grinding machine table 1.

[0051] A second power supply 24 is installed at the top center of the second mounting bracket 5. A second camera 25 is installed at the bottom of the second power supply 24 via a cable passing through the top center of the second mounting bracket 5. The second camera 25 is used to monitor in real time whether the through hole 13 is aligned with the guide rail mounting hole 7. The second camera 25 is installed at the bottom center of the second mounting bracket 5 by bolts. The second camera 25 is electrically connected to a second data transmission module 26. The second data transmission module 26 is electrically connected to the main processor module 11. The main processor module 11 is electrically connected to a device controller 27. The device controller 27 is used to control the operation of the device according to the instructions sent by the main processor module 11.

[0052] Furthermore, the first servo motor 18 and the first reducer 17 drive the first transmission shaft 16 to rotate. Then, through the transmission belt 20 and the second transmission shaft 21, the two threaded rods 22 can be rotated simultaneously to adjust the movement of the second mounting bracket 5. The sliding groove 3 and the slider 4 help improve the movement stability of the second mounting bracket 5. Furthermore, the second camera 25 can monitor in real time whether the through hole 13 is aligned with the guide rail mounting hole 7. With the help of the cylinder, multiple flap expansion pins 14 can be inserted into the guide rail mounting hole 7 at the same time to complete the clamping and positioning of the linear guide rail 6, thereby improving the positioning efficiency.

[0053] Example 3: Please refer to Figure 2 , Figure 6 and Figure 8In one embodiment of the present invention: a first electric telescopic cylinder 28 is installed at the bottom of both sides of the first mounting frame 2. The output end of the first electric telescopic cylinder 28 passes through the bottom of both sides of the first mounting frame 2 and a first moving block 29 is installed. One side of the first moving block 29 is movably connected to the inner wall of the first mounting frame 2, and the other side of the first moving block 29 is provided with a first groove 30. The inner wall of the first groove 30 is movably connected to a first transmission roller 31. A second reducer 32 is installed at the top of a set of first moving blocks 29, and the output end of the second reducer 32 is installed on the outer wall of the first transmission roller 31 through a transmission rod. A second servo motor 33 is installed at the input end of the second reducer 32.

[0054] The bottom of both sides of the second mounting frame 5 is equipped with a second electric telescopic cylinder 34. The output end of the second electric telescopic cylinder 34 passes through the bottom of both sides of the second mounting frame 5 and is equipped with a second moving block 35. One side of the second moving block 35 is movably connected to the inner wall of the second mounting frame 5, and the other side of the second moving block 35 is provided with a second groove 36. The inner wall of the second groove 36 is movably connected to a second transmission roller 37.

[0055] Furthermore, by adjusting the distance between the two first moving blocks 29 and the distance between the two second moving blocks 35 according to the different volumes of the linear guide rails 6, the distance between the two first moving blocks 29 and the distance between the two second moving blocks 35 can be adjusted by the first electric telescopic cylinder 28 and the second electric telescopic cylinder 34, respectively. By setting the second servo motor 33, the second reducer 32 and the first transmission roller 31, the linear guide rails 6 can be driven to move. The setting of the second transmission roller 37 is conducive to improving the stability and accuracy of the movement of the linear guide rails 6. During the movement of the linear guide rails 6, the top of the linear guide rails 6 does not contact the grinding machine table 1, which can ensure that the surface is smooth and flat.

[0056] Example 4: Please refer to Figure 2 , Figure 4 , Figure 5 , Figure 7 and Figure 8 An embodiment of the present invention provides: the flap-type expansion pin 14 includes an outer cylinder 38 and an inner core 39. An expansion pin fixing plate 40 is installed at the bottom of the outer cylinder 38. A fixing platform 41 is installed at the bottom of the expansion pin fixing plate 40 through a fixing rod. A movable plate 42 is installed at the bottom of the inner core 39 through the top of the expansion pin fixing plate 40. The movable plate 42 is installed at the bottom of the expansion pin fixing plate 40. A plurality of first cylinders 43 are installed at the bottom of the movable plate 42. The outer wall of the first cylinders 43 is fitted into the middle of the top of the fixing platform 41.

[0057] Several second cylinders 44 are installed on the outer side of the top of the fixed table 41, and the top of the second cylinders 44 is installed on the bottom of the grinding machine table 1.

[0058] Furthermore, the stability of the outer cylinder 38 of the split-type expansion pin 14 can be limited by the expansion pin fixing plate 40 and the fixing table 41. The height of the grinding machine table 1 can be adjusted by the second cylinder 44. When the second cylinder 44 moves downward, the split-type expansion pin 14 can be inserted into the guide rail mounting hole 7 on the linear guide rail 6. Then, the inner core 39 is pulled downward by the first cylinder 43, and the outer cylinder 38 expands under force, locking the linear guide rail 6 on the grinding machine table 1, simulating the state of screw locking, improving the clamping accuracy, thereby improving the straightness of the linear guide rail 6 after grinding, and improving the installation accuracy during final use.

[0059] Example 5: Please refer to Figure 9 The present invention provides an embodiment of the high-precision flap-type expansion pin center positioning device, the working steps of which are as follows:

[0060] S1. The diameter of the guide rail mounting hole 7 opened on the top of the linear guide rail 6 can be monitored and obtained in real time by the first camera 9, and sent to the main processor module 11. The main processor module 11 determines whether the diameter of the guide rail mounting hole 7 meets the effect of using the flap expansion pin 14 for restriction.

[0061] S2. The distance between the two first moving blocks 29 and the distance between the two second moving blocks 35 are adjusted by the first electric telescopic cylinder 28 and the second electric telescopic cylinder 34 respectively. The linear guide rail 6 can be moved by the setting of the second servo motor 33, the second reducer 32 and the first transmission roller 31.

[0062] S3. The first servo motor 18 and the first reducer 17 drive the first transmission shaft 16 to rotate. Then, through the setting of the transmission belt 20 and the second transmission shaft 21, the two threaded rods 22 can be driven to rotate simultaneously, adjusting the movement of the second mounting bracket 5. Then, through the second camera 25, it is possible to monitor in real time whether the through hole 13 and the guide rail mounting hole 7 are aligned.

[0063] S4. Adjust the height of the grinding machine table 1 by the second cylinder 44. When the second cylinder 44 moves downward, it can insert the flap expansion pin 14 into the guide rail mounting hole 7 on the linear guide rail 6. Then, the first cylinder 43 pulls the inner core 39 downward, and the outer cylinder 38 expands under force, locking the linear guide rail 6 on the grinding machine table 1, simulating the state of screw locking, and improving the clamping accuracy.

[0064] S1 also includes the following steps:

[0065] S11. If the diameter of the guide rail mounting hole 7 is determined to be insufficient to achieve the desired limiting effect using the interlocking expansion pin 14, the audible and visual alarm 12 will activate to remind staff to replace it.

[0066] The working principle is as follows: The first camera 9 monitors and acquires the diameter of the guide rail mounting hole 7 on the top of the linear guide rail 6 in real time and sends it to the main processor module 11. The main processor module 11 determines whether the diameter of the guide rail mounting hole 7 meets the limiting effect of using the interlocking expansion pin 14. By setting up the grinding machine table 1 and the interlocking expansion pin 14, the linear guide rail 6 can be simulated for grinding, ensuring that the grinding state matches the usage state. This improves the installation accuracy of the linear guide rail 6, thereby achieving ultra-high precision in use. The servo motor 18 and the first reducer 17 drive the first transmission shaft 16 to rotate. Through the transmission belt 20 and the second transmission shaft 21, the two threaded rods 22 can be rotated simultaneously, adjusting the movement of the second mounting bracket 5. The sliding groove 3 and the slider 4 improve the stability of the second mounting bracket 5's movement. The second camera 25 monitors in real time whether the through hole 13 is aligned with the guide rail mounting hole 7. In conjunction with the cylinder, multiple interlocking expansion pins 14 can be simultaneously inserted into the guide rail mounting hole 7, completing the clamping and positioning of the linear guide rail 6, thereby improving stability. By adjusting the distance between the two first moving blocks 29 and the distance between the two second moving blocks 35 according to the different volumes of the linear guide rails 6, the distance can be adjusted by the first electric telescopic cylinder 28 and the second electric telescopic cylinder 34 respectively. The linear guide rails 6 can be moved by the second servo motor 33, the second reducer 32, and the first transmission roller 31. The second transmission roller 37 helps improve the stability and accuracy of the linear guide rail movement. Furthermore, during the movement of the linear guide rails 6, the top surface of the linear guide rails 6 does not contact the grinding machine table 1, ensuring a smooth and flat surface. The stability of the outer cylinder 38 of the split expansion pin 14 can be limited by the expansion pin fixing plate 40 and the fixing table 41. The height of the grinding machine table 1 can be adjusted by the second cylinder 44. When the second cylinder 44 moves downward, the split expansion pin 14 can be inserted into the guide rail mounting hole 7 on the linear guide rail 6. Then, the inner core 39 is pulled downward by the first cylinder 43, and the outer cylinder 38 expands under force, locking the linear guide rail 6 on the grinding machine table 1, simulating the state of screw locking, improving the clamping accuracy, thereby improving the straightness of the linear guide rail 6 after grinding, and improving the installation accuracy during final use.

[0067] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A high-precision interlocking expansion pin center positioning device, comprising a grinding machine table (1), characterized in that: The tail end of the outer wall of the grinding machine table (1) is bolted with a first mounting bracket (2). Both sides of the grinding machine table (1) are provided with sliding grooves (3). The inner wall of the sliding grooves (3) is provided with a slider (4). A second mounting bracket (5) is provided on one side of the slider (4). The top of the grinding machine table (1) is movably connected with a linear guide rail (6). The top of the linear guide rail (6) is provided with several guide rail mounting holes (7). A first power supply (8) is installed in the middle of the top of the first mounting bracket (2). A first camera (9) is installed in the middle of the top of the first mounting bracket (2) through a cable. The first camera (9) is used to monitor the diameter of the guide rail mounting hole (7) opened on the top of the linear guide rail (6) in real time. The first camera (9) is installed in the middle of the bottom of the first mounting bracket (2) by bolts. The first camera (9) is electrically connected to a first data transmission module (10). The first data transmission module (10) is electrically connected to a main processor module (11). The main processor module (11) is electrically connected to an audible and visual alarm (12). The audible and visual alarm (12) is installed on one side of the top of the first mounting bracket (2). The top of the grinding machine table (1) has several through holes (13). The inner wall of the through hole (13) is movably connected with a flap expansion pin (14), and the front end of the outer wall of the flap expansion pin (14) is installed on the inner wall of the guide rail mounting hole (7). The flap expansion pin (14) is used to lock the linear guide rail (6).

2. The high-precision interlocking expansion pin center positioning device according to claim 1, characterized in that: The front ends of both sides of the grinding machine table (1) are equipped with first fixing blocks (15). A first drive shaft (16) is installed on the front of the first fixing block (15) on one side of the grinding machine table (1). A first reducer (17) is installed on the front of the first drive shaft (16) through a drive rod. A first servo motor (18) is installed on the front of the first reducer (17). A connecting block (19) is installed on the outer wall of the first servo motor (18). One end of the connecting block (19) is installed on the top of the first fixing block (15) by bolts. A drive belt (20) is installed on the outer wall of the first drive shaft (16). A second drive shaft (21) is installed on the other side of the inner wall of the drive belt (20). The second drive shaft (21) is installed on the front of the first fixing block (15) on the other side of the grinding machine table (1).

3. The high-precision interlocking expansion pin center positioning device according to claim 2, characterized in that: One end of the first drive shaft (16) and the second drive shaft (21) is equipped with a threaded rod (22), and the thread on the outer wall of the threaded rod (22) penetrates the front of the second mounting bracket (5). The other end of the threaded rod (22) is equipped with a second fixing block (23), and the second fixing block (23) is respectively installed on both sides of the grinding machine table (1).

4. The high-precision interlocking expansion pin center positioning device according to claim 1, characterized in that: A second power supply (24) is installed at the top center of the second mounting bracket (5). A second camera (25) is installed at the bottom of the second power supply (24) through a cable passing through the top center of the second mounting bracket (5). The second camera (25) is used to monitor in real time whether the through hole (13) and the guide rail mounting hole (7) are aligned. The second camera (25) is installed at the bottom center of the second mounting bracket (5) by bolts. The second camera (25) is electrically connected to the second data transmission module (26). The second data transmission module (26) is electrically connected to the main processor module (11). The main processor module (11) is electrically connected to the device controller (27). The device controller (27) is used to control the operation of the device according to the instructions sent by the main processor module (11).

5. The high-precision interlocking expansion pin center positioning device according to claim 1, characterized in that: The bottom of both sides of the first mounting frame (2) is equipped with a first electric telescopic cylinder (28). The output end of the first electric telescopic cylinder (28) passes through the bottom of both sides of the first mounting frame (2) and is equipped with a first moving block (29). One side of the first moving block (29) is movably connected to the inner wall of the first mounting frame (2). The other side of the first moving block (29) is provided with a first groove (30). The inner wall of the first groove (30) is movably connected to a first transmission roller (31). A second reducer (32) is installed on the top of one set of the first moving blocks (29). The output end of the second reducer (32) is installed on the outer wall of the first transmission roller (31) through a transmission rod. A second servo motor (33) is installed on the input end of the second reducer (32).

6. The high-precision interlocking expansion pin center positioning device according to claim 1, characterized in that: The bottom of both sides of the second mounting frame (5) is equipped with a second electric telescopic cylinder (34). The output end of the second electric telescopic cylinder (34) passes through the bottom of both sides of the second mounting frame (5) and is equipped with a second moving block (35). One side of the second moving block (35) is movably connected to the inner wall of the second mounting frame (5), and the other side of the second moving block (35) is provided with a second groove (36). The inner wall of the second groove (36) is movably connected to a second transmission roller (37).

7. The high-precision interlocking expansion pin center positioning device according to claim 1, characterized in that: The flap-type expansion pin (14) includes an outer cylinder (38) and an inner core (39). An expansion pin fixing plate (40) is installed at the bottom of the outer cylinder (38). A fixing platform (41) is installed at the bottom of the expansion pin fixing plate (40) via a fixing rod. A movable plate (42) is installed at the bottom of the inner core (39) through the top of the expansion pin fixing plate (40). The movable plate (42) is installed at the bottom of the expansion pin fixing plate (40). Several first cylinders (43) are installed at the bottom of the movable plate (42). The outer wall of the first cylinder (43) is fitted into the middle of the top of the fixing platform (41).

8. A high-precision interlocking expansion pin center positioning device according to claim 7, characterized in that: Several second cylinders (44) are installed on the outer side of the top of the fixed table (41), and the top of the second cylinders (44) is installed on the bottom of the grinding machine table (1).

9. A method of using a high-precision interlocking expansion pin center positioning device according to any one of claims 1-8, characterized in that, The working steps of this high-precision flap-type expansion pin center positioning device are as follows: S1. The diameter of the guide rail mounting hole (7) opened on the top of the linear guide rail (6) can be monitored and obtained in real time by the first camera (9) and sent to the main processor module (11). The main processor module (11) determines whether the diameter of the guide rail mounting hole (7) meets the effect of using the flap expansion pin (14) for restriction. S2. By adjusting the distance between the two first moving blocks (29) and the distance between the two second moving blocks (35) respectively by the first electric telescopic cylinder (28) and the second electric telescopic cylinder (34), the linear guide rail (6) can be driven to move by the setting of the second servo motor (33), the second reducer (32) and the first transmission roller (31); S3. The first servo motor (18) and the first reducer (17) drive the first transmission shaft (16) to rotate. Then, through the setting of the transmission belt (20) and the second transmission shaft (21), the two threaded rods (22) can be driven to rotate simultaneously, and the second mounting bracket (5) can be adjusted to move. Then, through the second camera (25), it is possible to monitor in real time whether the through hole (13) and the guide rail mounting hole (7) are aligned. S4. Adjust the height of the grinding machine table (1) by the second cylinder (44). When the second cylinder (44) moves downward, the flap expansion pin (14) can be inserted into the guide rail mounting hole (7) on the linear guide rail (6). Then, the inner core (39) is pulled downward by the first cylinder (43), and the outer cylinder (38) expands under force, locking the linear guide rail (6) on the grinding machine table (1) to simulate the state of screw locking and improve the clamping accuracy.

10. The method of using the high-precision interlocking expansion pin center positioning device according to claim 9, characterized in that, The S1 also includes the following steps: S11. If the diameter of the guide rail mounting hole (7) is not large enough to satisfy the effect of using the flap expansion pin (14) for restriction, then the sound and light alarm (12) will work to remind the staff to replace it.

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