Shaft part inner hole machining device with self-centering function

Abstract

The application discloses a shaft part inner hole machining device with a self-centering function, belongs to the technical field of shaft inner hole machining, and aims to solve the problem that existing devices are inconvenient to position a shaft by setting two kinds of shaft positioning and always keep detecting the outer side of the shaft to ensure that the shaft center positioning of the shaft is always correct. The device is characterized in that: a plurality of clamping blocks are moved towards each other to complete the preliminary fixation of the embedded shaft; the one end of a detection head is abutted against the outer side of the embedded shaft; two groups of component blocks are rotated to allow the two groups of detection heads to detect one end of the embedded shaft; the rotation of the component blocks allows the rotating component to rotate and descend, extrude the folded air bag ring, make the centering air bag ring swell and deform, uniformly extrude the embedded shaft, and determine the position of the embedded shaft again; the shaft center of the embedded shaft is positioned; whether the detection data of the detection head changes or not is observed while the embedded shaft is rotating, so that the detection data is accurately detected; and the lifting drilling table is lowered to perform shaft inner hole machining on the embedded shaft.

Description

Technical Field

[0001] This invention relates to the field of shaft internal hole machining technology, specifically to a shaft-type part internal hole machining device with self-centering function. Background Technology

[0002] The typical steps for machining the inner hole of a shaft are as follows: after clamping and fixing the shaft by multiple sets of clamping bars moving in opposite directions, a lifting drill head is used to machine the inner hole of the shaft part. According to the Chinese patent application document CN210499382U, this utility model relates to an insert-type shaft inner hole machining fixture, including a chuck and an insert-type shaft. The chuck has a mating tapered surface, a connecting through hole, and a positioning hole. The chuck is positioned with the lathe spindle through the positioning hole and is tightly fitted to the lathe spindle through the mating tapered surface. The connecting through hole is used to connect and fix the chuck and the lathe spindle. The insert-type shaft is assembled inside the chuck. Between the chuck and the insert-type shaft are assembled an open tapered sleeve I, a bushing, and an open tapered sleeve II. The open tapered surface of the open tapered sleeve I corresponds to the taper of the inner hole of the chuck. An open tapered sleeve III is assembled on the insert-type shaft. The outer tapered surface of the open tapered sleeve III mates with the inner tapered surface of the open tapered sleeve II. An external thread is provided on the outer wall of the rear end of the chuck. The insert-type shaft is locked by a polygonal locking nut connected to an external thread. This utility model greatly shortens the time for each correction, clamping, and fixing of the shaft, and solves the problems of previous shaft fixings requiring correction or damage during processing. In this application, the method of clamping the shaft by moving the clamping bars in opposite directions is eliminated. Instead, the shaft is positioned by the deformation expansion of the open conical sleeve II. However, when positioning the shaft in this way, the shaft will always maintain a fixed position. When the deformation of the open conical sleeve II is problematic, it will cause the positioning of the shaft to deviate. It is not convenient to set two positioning methods for the shaft and to keep the outer side of the shaft constantly checked during positioning to ensure that the shaft center positioning is always correct and to ensure that there is no deviation when the shaft part is machined internally. After the existing shaft is machined internally, there will be debris and other materials. When the debris appears inside the positioning structure, it will greatly affect the positioning accuracy of the machine.

[0003] To address the aforementioned issues, a device for machining the inner hole of shaft-type parts with a self-centering function is proposed. Summary of the Invention

[0004] The purpose of this invention is to provide a shaft-type part internal hole machining device with self-centering function, which solves the problem that existing devices in the background art are not convenient to ensure the correct positioning of the shaft center by setting two positioning methods for the shaft and always maintaining detection of the outer side of the shaft during positioning. After existing internal shaft machining, there will be debris and other materials. When the debris appears inside the positioning structure, it will greatly affect the positioning accuracy of the machine.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a device for machining the inner hole of shaft parts with self-centering function, comprising a device table and a lifting drilling table disposed on one side of the upper end of the device table, a rotating detection component movably disposed at the upper end of the device table, a component groove being opened inside the device table, and a centering airbag ring being disposed inside the device table, and a clamping strip being movably disposed inside the lower end of the device table.

[0006] The component groove includes a rotating component threaded inside its upper end, and a folded airbag ring inside its lower end. The rotating detection assembly includes a component strip and an electrically driven movable shaft movably disposed inside the upper end of the component strip. A dial indicator is disposed on one side of the upper end of the component strip, and the component strip is rotatably connected to the dial indicator via the electrically driven movable shaft. A probe is disposed on one side of the dial indicator. A fitting shaft is fitted inside the device stage. By fitting the fitting shaft inside the device stage, multiple sets of clamping blocks move towards each other until one end of the fitting shaft is clamped, thus completing the initial fixation of the fitting shaft. The process involves rotating a dial indicator and probe head via an electrically driven movable shaft, with one end of the probe head pressed against the outside of the mating shaft. Two sets of component strips rotate, allowing the two sets of probe heads to inspect one end of the mating shaft. The rotation of the component strips causes the rotating component to descend, compressing and folding the airbag ring. This causes the centering airbag ring to expand and deform, uniformly compressing the mating shaft to re-determine its position and locate its center. While rotating, the probe head's readings are monitored for changes to ensure accurate data. Finally, a lowering drilling platform is used to machine the inner hole of the mating shaft.

[0007] Furthermore, the device is internally equipped with a positioning module, a detection module, and a CPU module. The CPU module is electrically connected to an information display module, an internal hole processing module, and a rinsing module, and is electrically connected to a receiving terminal. The positioning module is electrically connected to a pre-fixing module and a centering module.

[0008] Furthermore, the device platform has a fitting groove inside, and the fitting shaft is fitted inside the fitting groove. The upper end of the device platform has a rotating annular groove and a semi-annular groove. There are two sets of semi-annular grooves. The diameter of the two sets of semi-annular grooves is smaller than the diameter of the rotating annular groove, and the diameter of the fitting groove is smaller than the diameter of the two sets of semi-annular grooves.

[0009] Furthermore, a driven ring is movably arranged inside the rotating ring groove, and a fitting groove is opened inside the lower end of the device platform. Multiple sets of fitting grooves are provided, and the number of multiple sets of fitting grooves corresponds to the number of multiple sets of clamping blocks. The multiple sets of fitting grooves are connected to the fitting groove. A fixed motor is fixedly arranged inside the device platform. A meshing wheel is connected to the upper end of the fixed motor through a shaft, and the meshing wheel meshes with the driven ring.

[0010] Furthermore, the rotating detection assembly includes a fitting column fitted inside the semi-annular groove, the fitting column being connected to a movable disk, the movable disk being located at the upper end of the semi-annular groove, a telescopic connecting column being provided at the lower end of the fitting column, a first connecting column being provided on one side of the fitting column, one end of the first connecting column being connected to a driven ring, and an external gear ring being provided on the outside of the driven ring, and one end of the telescopic connecting column being fixedly connected to the upper end of the rotating component.

[0011] Furthermore, the rotating component includes a threaded ring threadedly connected to the upper end of the component groove, an outer threaded ring is provided on the outside of the threaded ring, and a tapered shell-extraction ring is provided at the lower end of the threaded ring. The tapered shell-extraction ring is located at the upper end of the folding airbag ring, and the inclination of the tapered shell-extraction ring matches the inclination of the folding airbag ring.

[0012] Furthermore, the lower end of the lifting drilling platform is equipped with an annular cylinder and a lifting drill bit, and the lifting drill bit is electrically driven to achieve lifting and rotating processing. The lifting drill bit is located inside the annular cylinder. The lower end of the lifting drilling platform is also equipped with a flushing head, one end of which is located inside the annular cylinder and faces the lifting drill bit. The lower end of the device platform is provided with a collection trough, and the upper end of the collection trough is movably equipped with an electrically driven opening and closing door. The bottom of the collection trough is equipped with a filter screen.

[0013] Furthermore, the initial fixing module is used to drive multiple sets of clamping blocks to move towards each other until one end of the mating shaft is clamped, positioned, and initially fixed. The centering module is used to center and fix the mating shaft, allowing the centering airbag ring to expand and deform, thus achieving positioning and secondary fixing of the mating shaft. The detection module is used to rotate the dial indicator and the detection head, so that one end of the detection head contacts the outside of the fixed mating shaft. When the mating shaft rotates, it detects the mating shaft. When the centering airbag ring fixes the mating shaft for the second time, the detection head detects the mating shaft again. The CPU module is used to receive the detection data from the detection module, process and compare it. The information display module is used to receive the data processed by the CPU module and display it on the display screen. The receiving terminal also receives data from the CPU module. The internal hole processing module is used to control the lifting and lowering of the lifting drilling table and the electric drive of the lifting drill bit. The flushing module is used to supply water to the flushing head to flush the mating shaft processed by the lifting drill bit.

[0014] Furthermore, the centering airbag ring has an airbag plate inside, and multiple sets of airbag plates are provided. The upper end of the centering airbag ring is provided with an arc-shaped airbag and a connecting air tube. Multiple sets of connecting air tubes are provided, and the multiple sets of connecting air tubes pass through and are connected to the multiple sets of corresponding airbag plates.

[0015] Furthermore, the component slot also includes a linkage assembly set inside the device platform. The linkage assembly includes a pneumatic cavity opened inside the device platform. A linkage air pipe is provided at the upper end of the pneumatic cavity and is connected to the folding airbag ring. A moving column is fitted inside the pneumatic cavity. A first piston and a second piston are provided on the outside of the moving column. The first piston is located at the upper end of the pneumatic cavity, and the second piston is located at the lower end of the pneumatic cavity. A contact sensing block is provided at the lower end of the moving column. The contact sensing block is electrically connected to two sets of electrically driven opening and closing doors.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0017] This invention provides a self-centering internal hole machining device for shaft parts. This application utilizes multiple sets of clamping blocks that move towards each other until one end of the mating shaft is clamped, thus completing the initial fixation of the mating shaft. An electrically driven movable shaft rotates a dial indicator and a probe, causing one end of the probe to press against the outside of the mating shaft. Two sets of component blocks rotate, allowing the two sets of probes to detect one end of the mating shaft. The rotation of the component blocks causes the rotating component to descend, compressing and folding the airbag ring, causing the centering airbag ring to expand and deform, uniformly compressing the mating shaft to re-determine its position and locate its axis. While rotating, the detection data from the probes is monitored for changes, thus providing accurate detection data. A lifting drilling platform descends to machine the internal hole of the mating shaft. This invention solves the problem that existing devices are inconvenient for setting two methods of shaft positioning and maintaining constant detection of the outside of the shaft during positioning to ensure accurate axis positioning. Furthermore, existing internal shaft machining often results in debris and other materials remaining inside the positioning structure, which significantly affects the machine's positioning accuracy. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the module structure of the present invention;

[0020] Figure 3 This is a side view of the device stage and rotating detection assembly of the present invention.

[0021] Figure 4 This is a three-dimensional structural diagram of the rotating detection component of the present invention;

[0022] Figure 5 This is a schematic diagram of the rotating component structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the annular cylinder and lifting drill bit structure of the present invention;

[0024] Figure 7This is a schematic diagram of the centering airbag ring structure of the present invention;

[0025] Figure 8 For the present invention Figure 3 Enlarged structural diagram at point A in the middle.

[0026] In the diagram: 1. Lifting drilling platform; 11. Annular cylinder; 12. Flushing head; 13. Lifting drill bit; 2. Device platform; 21. Semi-annular groove; 22. Fitting groove; 23. Rotating annular groove; 231. Driven ring; 2311. External gear ring; 24. Fitting shaft; 25. Fixed motor; 251. Meshing wheel; 26. Fitting strip groove; 27. Collection tank; 271. Electrically driven opening and closing door; 272. Filter screen; 3. Rotary detection assembly; 31. Component strip; 32. Dial indicator; 33. Detector head; 34. Electrically driven movable shaft; 35. Movable disc; 36. Fitting column; 37. First connecting column; 38. Telescopic connecting column; 4. Centering. 41. Airbag ring; 42. Connecting air tube; 43. Airbag plate; 5. Arc-shaped airbag; 6. Clamping strip; 7. Component groove; 8. Rotating component; 9. Threaded ring; 10. Conical shell-extraction ring; 11. External threaded ring; 12. Folding airbag ring; 13. Linkage assembly; 14. Linkage air tube; 15. Pneumatic cavity; 16. Moving column; 17. First piston; 18. Second piston; 19. Contact sensing block; 10. Positioning module; 11. Initial fixing module; 12. Centering module; 10. Detection module; 11. CPU module; 12. Information display module; 13. Internal hole machining module; 14. Flushing module. Detailed Implementation

[0027] 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.

[0028] To address the technical problem that existing devices are inconvenient for ensuring accurate shaft center positioning by employing two different shaft positioning methods while simultaneously maintaining detection of the shaft's outer side, such as... Figures 1-7 As shown, the following preferred technical solutions are provided:

[0029] A self-centering internal hole machining device for shaft parts includes a platform 2 and a lifting drilling table 1 disposed on one side of the upper end of the platform 2. A rotary detection component 3 is movably disposed on the upper end of the platform 2. A component groove 6 is formed inside the platform 2, and a centering airbag ring 4 is disposed inside the platform 2. A clamping block 5 is movably disposed inside the lower end of the platform 2. The component groove 6 includes a rotating component 61 threaded inside its upper end, and a folding airbag ring 62 is disposed inside the lower end of the component groove 6. The rotary detection component 3 includes a component strip 31 and an electrically driven movable shaft 34 movably disposed inside the upper end of the component strip 31. A dial indicator 32 is disposed on one side of the upper end of the component strip 31. The component strip 31 is rotatably connected to the dial indicator 32 through the electrically driven movable shaft 34. A probe head 33 is disposed on one side of the dial indicator 32. An embedded part is fitted inside the platform 2. The fitting shaft 24 is fitted inside the device platform 2. Multiple sets of clamping blocks 5 move towards each other until one end of the fitting shaft 24 is clamped, thus completing the initial fixation of the fitting shaft 24. The dial indicator 32 and the probe head 33 are rotated by the electrically driven movable shaft 34, so that one end of the probe head 33 abuts against the outside of the fitting shaft 24. The two sets of component bars 31 rotate, so that the two sets of probe heads 33 can detect one end of the fitting shaft 24. The rotation of the component bars 31 causes the rotating component 61 to rotate and descend, squeezing and folding the airbag ring 62, causing the centering airbag ring 4 to expand and deform, and uniformly squeezing the fitting shaft 24 to determine the position of the fitting shaft 24 again and locate the axis of the fitting shaft 24. While rotating, the detection data of the probe head 33 is observed to see if it changes, so as to accurately detect the data. The inner hole of the fitting shaft 24 is machined by lowering the lifting drilling table 1.

[0030] The device platform 2 is internally equipped with a positioning module 7, a detection module 8, and a CPU module 9. The CPU module 9 is electrically connected to an information display module 91, an internal hole machining module 92, and a rinsing module 93, and is also electrically connected to a receiving terminal. The positioning module 7 is electrically connected to a pre-fixing module 71 and a centering module 72. The device platform 2 has an internal fitting groove 22, in which a fitting shaft 24 fits. The upper end of the device platform 2 has a rotating annular groove 23 and a semi-annular groove 21. Two sets of semi-annular grooves 21 are provided, and the diameters of the two sets of semi-annular grooves 21 are smaller. The diameter of the rotating annular groove 23 is smaller than the diameter of the fitting groove 22 than the diameter of the two sets of semi-annular grooves 21. A driven ring 231 is movably arranged inside the rotating annular groove 23. A fitting strip groove 26 is opened inside the lower end of the device platform 2, and multiple sets of fitting strip grooves 26 are provided. The number of sets of fitting strip grooves 26 corresponds to the number of sets of clamping strips 5. The multiple sets of fitting strip grooves 26 are connected to the fitting groove 22. A fixed motor 25 is fixedly arranged inside the device platform 2. A meshing wheel 251 is connected to the upper end of the fixed motor 25 through a shaft, and the meshing wheel 251 meshes with the driven ring 231.

[0031] The rotating detection assembly 3 includes a fitting post 36 fitted inside the semi-annular groove 21. The fitting post 36 is connected to a movable disk 35, which is located at the upper end of the semi-annular groove 21. A telescopic connecting post 38 is provided at the lower end of the fitting post 36. A first connecting post 37 is provided on one side of the fitting post 36. One end of the first connecting post 37 is connected to a driven ring 231, and an external gear ring 2311 is provided on the outside of the driven ring 231. One end of the telescopic connecting post 38 is fixedly connected to the upper end of the rotating component 61. The rotating component 61 includes a threaded ring 611 threadedly connected to the upper end of the component groove 6. An external threaded ring 613 is provided on the outside of the threaded ring 611. A conical shell-extraction ring 61 is provided at the lower end of the threaded ring 611. 2. The conical shell-extraction ring 612 is located at the upper end of the folding airbag ring 62, and the inclination of the conical shell-extraction ring 612 matches the inclination of the folding airbag ring 62. The lower end of the lifting drilling platform 1 is provided with an annular cylinder 11 and a lifting drill bit 13. The lifting drill bit 13 is electrically driven to achieve lifting and rotating processing. The lifting drill bit 13 is located inside the annular cylinder 11. The lower end of the lifting drilling platform 1 is also provided with a flushing head 12. One end of the flushing head 12 is inside the annular cylinder 11, and this end is set towards the lifting drill bit 13. The lower end of the device platform 2 is provided with a collection groove 27. The upper end of the collection groove 27 is movably provided with an electrically driven opening and closing door 271. The bottom end of the collection groove 27 is provided with a filter screen 272.

[0032] The initial fixing module 71 drives multiple sets of clamping blocks 5 to move towards each other until one end of the fitting shaft 24 is clamped, positioned, and initially fixed. The centering module 72 centers and fixes the fitting shaft 24, allowing the centering airbag ring 4 to expand and deform, thus achieving positioning and secondary fixing of the fitting shaft 24. The detection module 8 rotates the dial indicator 32 and the detection head 33, so that one end of the detection head 33 contacts the outside of the fixed fitting shaft 24. When the fitting shaft 24 rotates, it detects the fitting shaft 24. When the centering airbag ring 4 fixes the fitting shaft 24 for the second time, the detection head 33 detects the fitting shaft 24 again. The CPU module 9 receives the detection data from the detection module 8 and processes it. In terms of logic and comparison, the information display module 91 is used to receive the data processed by the CPU module 9 and display it on the display screen. The receiving terminal also receives data from the CPU module 9. The internal hole processing module 92 is used to control the lifting and lowering of the lifting drilling table 1 and the power drive of the lifting drill bit 13. The flushing module 93 is used to supply water to the flushing head 12 for flushing and to flush the mating shaft 24 processed by the lifting drill bit 13. The centering airbag ring 4 is provided with airbag pieces 42 inside, and multiple sets of airbag pieces 42 are provided. The upper end of the centering airbag ring 4 is provided with an arc-shaped airbag 43 and a connecting air pipe 41. Multiple sets of connecting air pipes 41 are provided, and multiple sets of connecting air pipes 41 pass through and are connected to multiple sets of corresponding airbag pieces 42.

[0033] Specifically, the fitting shaft 24 is fitted into the fitting groove 22. At this time, the initial fixing module 71 drives multiple sets of clamping blocks 5 to move towards each other until the multiple sets of clamping blocks 5 clamp one end of the fitting shaft 24, thus initially fixing the fitting shaft 24. The detection module 8 causes the dial indicator 32 to rotate through the electrically driven movable shaft 34, so that one end of the two sets of detection heads 33 contacts the outside of the fitting shaft 24, which plays a detection role on the fitting shaft 24. The centering module 72 drives the fixed motor 25 to rotate the meshing wheel 251. Therefore, the driven ring 231, the first connecting post 37, the fitting post 36 and the telescopic connecting post 38 rotate, which in turn drives the threaded ring 611 and the conical shelling ring 612 to rotate. The rotation of the threaded ring 611 causes the conical shelling ring 612 and the threaded ring 611 to descend inside the component groove 6. At this time, the two sets of component bars 31 drive the rotation of the detection heads 33. 3. The outer side of the mating shaft 24 is then inspected. The rotation and descent of the conical shell-extraction ring 612 will evenly press down the folded airbag ring 62, causing the gas inside the folded airbag ring 62 to enter the interior of the corresponding airbag plates 42 through multiple sets of connecting air pipes 41. This causes the airbag plates 42 to expand and deform evenly, providing a secondary fixing effect on the mating shaft 24. When the airbag plates 42 are in action, they will also provide a positioning effect on the mating shaft 24. Before and after the airbag plates 42 are in action, the two sets of probes 33 are always inspecting the outer side of the mating shaft 24. If the position of the mating shaft 24 changes before and after, then there will be an error in the positioning step of the mating shaft 24. The detection data before and after will be transmitted to the CPU module 9. After the CPU module 9 processes the data, it will be displayed through the information display module 91. After the centering work of the mating shaft 24 is completed, the inner hole machining module 92 drives the lifting drill bit 13 to descend and rotate, performing internal machining on the mating shaft 24.

[0034] To address the technical problem that after machining within the shaft, debris and other materials remain, and that when these debris are present inside the positioning structure, they significantly affect the machine's positioning accuracy, such as... Figure 3 , Figure 6 and Figure 8 As shown, the following preferred technical solutions are provided:

[0035] The lower end of the lifting drilling platform 1 is provided with an annular cylinder 11 and a lifting drill bit 13. The lifting drill bit 13 is electrically driven to achieve lifting and rotating machining operations, and the lifting drill bit 13 is located inside the annular cylinder 11. The lower end of the lifting drilling platform 1 is also provided with a flushing head 12, one end of which is located inside the annular cylinder 11 and faces the lifting drill bit 13. The lower end of the device platform 2 is provided with a collection trough 27, and the upper end of the collection trough 27 is movably provided with an electrically driven opening and closing door 271. The bottom end of the collection trough 27 is provided with a filter screen 272. The component groove 6 also includes a linkage assembly 63 installed inside the device platform 2. Component 63 includes a pneumatic cavity 632 formed inside the device platform 2. A linkage air pipe 631 is provided at the upper end of the pneumatic cavity 632 and is connected to the folding airbag ring 62. A moving column 633 is fitted inside the pneumatic cavity 632. A first piston 634 and a second piston 635 are provided on the outside of the moving column 633. The first piston 634 is located at the upper end of the pneumatic cavity 632 and the second piston 635 is located at the lower end of the pneumatic cavity 632. A contact sensing block 636 is provided at the lower end of the moving column 633 and is electrically connected to two sets of electrically driven opening and closing doors 271.

[0036] Specifically, after the folding airbag ring 62 is compressed, the internal gas is released. A small portion of the gas enters the upper part of the first piston 634 through the linkage air pipe 631, thereby compressing the first piston 634 and the moving column 633 to descend until the moving column 633 contacts the contact sensing block 636. The second piston 635 is designed to ensure that the second piston 635 will not leak when gas enters the linkage air pipe 631. When one end of the moving column 633 contacts the contact sensing block 636, the two sets of electrically driven opening and closing doors 271 are electrically driven to retract, that is, the two sets of electrically driven opening and closing doors 271 are no longer in contact. When the fitting shaft 24 is just inserted into the fitting groove 22, one end of the fitting shaft 24 contacts the two sets of electrically driven opening and closing doors 271 that have not retracted. At this time, when the two sets of electrically driven opening and closing doors 271 retract, the fitting shaft 24 has been fixed by the clamping block 5 and the centering airbag ring 4. When the lifting drill bit 13 descends to drill, the lower end of the annular cylinder 11 contacts the upper end of the fitting shaft 24. Therefore, the debris generated by the lifting drill bit 13 drilling the hole of the fitting shaft 24 will always remain inside the annular cylinder 11. After the lifting drill bit 13 rises and completes the drilling work, the flushing module 93 drives the flushing head 12 to start working. The flushing head 12 impacts the inside of the annular cylinder 11 with cleaning water, allowing the debris and cleaning water to enter the collection tank 27 through the shaft hole of the fitting shaft 24 and the gap position of the multiple sets of electrically driven opening and closing doors 271. The cleaning water is discharged through the filter screen 272, and the processed debris is collected inside the collection tank 27.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for machining the inner hole of shaft parts with self-centering function, comprising a device table (2) and a lifting drilling table (1) disposed on one side of the upper end of the device table (2), characterized in that: The upper end of the device platform (2) is movably provided with a rotating detection component (3), the inside of the device platform (2) is provided with a component groove (6), and the inside of the device platform (2) is provided with a centering airbag ring (4), and the lower end of the device platform (2) is movably provided with a clamping strip (5). The component groove (6) includes a rotating component (61) with a threaded arrangement at its upper end. A folded airbag ring (62) is arranged inside the lower end of the component groove (6). The rotating detection assembly (3) includes a component strip (31) and an electrically driven movable shaft (34) movably arranged inside the upper end of the component strip (31). A dial indicator (32) is arranged on one side of the upper end of the component strip (31). The component strip (31) is rotatably connected to the dial indicator (32) through the electrically driven movable shaft (34). A probe head (33) is arranged on one side of the dial indicator (32). A fitting shaft (24) is fitted inside the device platform (2). The fitting shaft (24) is fitted inside the device platform (2). Multiple sets of clamping blocks (5) move towards each other until one end of the fitting shaft (24) is clamped, thus completing the fitting of the fitting shaft (24). 4) Initial fixation: The dial indicator (32) and the probe (33) are rotated by the electric drive movable shaft (34), so that one end of the probe (33) is against the outside of the mating shaft (24). The two sets of component strips (31) are rotated, so that the two sets of probes (33) are tested at one end of the mating shaft (24). The rotation of the component strips (31) causes the rotating component (61) to rotate and descend, squeezing and folding the airbag ring (62), so that the centering airbag ring (4) expands and deforms, and the mating shaft (24) is evenly squeezed. The position of the mating shaft (24) is determined again, and the axis of the mating shaft (24) is located. While rotating, the detection data of the probe (33) is observed to see if it changes, so as to accurately detect the data. The inner hole of the mating shaft (24) is machined by lowering the lifting drilling table (1).

2. The internal hole machining device for shaft parts with self-centering function according to claim 1, characterized in that: The device platform (2) is equipped with a positioning module (7), a detection module (8), and a CPU module (9). The CPU module (9) is electrically connected to an information display module (91), an internal hole processing module (92), and a rinsing module (93). The CPU module (9) is also electrically connected to a receiving terminal. The positioning module (7) is electrically connected to an initial fixing module (71) and a centering module (72).

3. The internal hole machining device for shaft parts with self-centering function according to claim 2, characterized in that: The device platform (2) has a fitting groove (22) inside, and the fitting shaft (24) is fitted inside the fitting groove (22). The upper end of the device platform (2) has a rotating ring groove (23) and a semi-ring groove (21). There are two sets of semi-ring grooves (21). The diameter of the two sets of semi-ring grooves (21) is smaller than the diameter of the rotating ring groove (23), and the diameter of the fitting groove (22) is smaller than the diameter of the two sets of semi-ring grooves (21).

4. The internal hole machining device for shaft parts with self-centering function according to claim 3, characterized in that: The rotating ring groove (23) is equipped with a driven ring (231) inside. The lower end of the device platform (2) is provided with a fitting groove (26), and multiple sets of fitting grooves (26) are provided. The number of sets of fitting grooves (26) corresponds to the number of sets of clamping blocks (5). The multiple sets of fitting grooves (26) are connected to the fitting groove (22). The device platform (2) is fixedly equipped with a fixed motor (25). The upper end of the fixed motor (25) is connected to a meshing wheel (251) through a shaft, and the meshing wheel (251) meshes with the driven ring (231).

5. The internal hole machining device for shaft parts with self-centering function according to claim 4, characterized in that: The rotating detection assembly (3) includes a fitting column (36) fitted inside the semi-annular groove (21). The fitting column (36) is connected to the movable disk (35). The movable disk (35) is located at the upper end of the semi-annular groove (21). A telescopic connecting column (38) is provided at the lower end of the fitting column (36). A first connecting column (37) is provided on one side of the fitting column (36). One end of the first connecting column (37) is connected to the driven ring (231). An external gear ring (2311) is provided on the outside of the driven ring (231). One end of the telescopic connecting column (38) is fixedly connected to the upper end of the rotating component (61).

6. The internal hole machining device for shaft parts with self-centering function according to claim 1, characterized in that: The rotating component (61) includes a threaded ring (611) threadedly connected to the upper end of the component groove (6). An outer threaded ring (613) is provided on the outside of the threaded ring (611). A conical shell-extracting ring (612) is provided at the lower end of the threaded ring (611). The conical shell-extracting ring (612) is located at the upper end of the folding airbag ring (62), and the inclination of the conical shell-extracting ring (612) matches the inclination of the folding airbag ring (62).

7. The internal hole machining device for shaft parts with self-centering function according to claim 1, characterized in that: The lower end of the lifting drilling platform (1) is provided with an annular cylinder (11) and a lifting drill bit (13). The lifting drill bit (13) is electrically driven to perform lifting and rotating processing. The lifting drill bit (13) is located inside the annular cylinder (11). The lower end of the lifting drilling platform (1) is also provided with a flushing head (12). One end of the flushing head (12) is located inside the annular cylinder (11) and is facing the lifting drill bit (13). The lower end of the device platform (2) is provided with a collection trough (27). The upper end of the collection trough (27) is movably provided with an electrically driven opening and closing door (271). The bottom end of the collection trough (27) is provided with a filter screen (272).

8. The internal hole machining device for shaft parts with self-centering function according to claim 7, characterized in that: The initial fixing module (71) is used to drive multiple sets of clamping blocks (5) to move towards each other until one end of the fitting shaft (24) is clamped, positioned, and initially fixed. The centering module (72) is used to center and fix the fitting shaft (24) so ​​that the centering airbag ring (4) expands and deforms, thereby achieving the means of positioning and secondary fixing of the fitting shaft (24). The detection module (8) is used to rotate the dial indicator (32) and the detection head (33) so that one end of the detection head (33) contacts the outside of the fixed fitting shaft (24). When the fitting shaft (24) rotates, it plays a detection role on the fitting shaft (24). The centering airbag ring (4) performs secondary fitting. When the shaft (24) is fixed, the probe (33) detects the mating shaft (24) again. The CPU module (9) is used to receive the detection data from the probe module (8), organize and compare it. The information display module (91) is used to receive the data processed by the CPU module (9) and display it on the display screen. The receiving terminal also receives the data from the CPU module (9). The internal hole processing module (92) is used to control the lifting of the lifting drilling table (1) and the electric drive of the lifting drill bit (13). The flushing module (93) is used to supply water to the flushing head (12) for flushing and to flush the mating shaft (24) processed by the lifting drill bit (13).

9. The internal hole machining device for shaft parts with self-centering function according to claim 1, characterized in that: The centering airbag ring (4) is provided with an airbag piece (42) inside, and multiple sets of airbag pieces (42) are provided. The upper end of the centering airbag ring (4) is provided with an arc-shaped airbag (43) and a connecting air tube (41). Multiple sets of connecting air tubes (41) are provided, and multiple sets of connecting air tubes (41) pass through and are connected to multiple sets of corresponding airbag pieces (42).

10. The internal hole machining device for shaft parts with self-centering function according to claim 7, characterized in that: The component slot (6) also includes a linkage assembly (63) set inside the device platform (2). The linkage assembly (63) includes a pneumatic cavity (632) opened inside the device platform (2). A linkage air pipe (631) is provided at the upper end of the pneumatic cavity (632), and the linkage air pipe (631) is connected to the folded airbag ring (62). A moving column (633) is fitted inside the pneumatic cavity (632). A first piston (634) and a second piston (635) are provided on the outside of the moving column (633). The first piston (634) is located at the upper end of the pneumatic cavity (632), and the second piston (635) is located at the lower end of the pneumatic cavity (632). A contact sensing block (636) is provided at the lower end of the moving column (633). The contact sensing block (636) is electrically connected to two sets of electrically driven opening and closing doors (271).

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