A quick assembly device for an electric spindle bearing

Abstract

The application relates to the technical field of motorized spindle production equipment, and specifically discloses a quick assembly equipment for motorized spindle bearings, which comprises a conveying device and two groups of bearing automatic feeding assemblies, and a mounting bracket is arranged on the top of the conveying device; the bearing automatic feeding assemblies are used for conveying bearings; the bearing automatic feeding assemblies comprise a bearing feeding cylinder, a pushing seat, a pushing rod and a pushing structure; two material taking grooves are arranged on the outer surface of one end of the bearing feeding cylinder; and the pushing seat is slidably arranged in the bearing feeding cylinder; the quick assembly equipment for motorized spindle bearings can complete the synchronous installation of the bearings at the two ends of the motorized spindle at one time through the linkage design of the two groups of bearing automatic feeding assemblies, the bearing assembly assembly and the conveying device, manual transfer and overturning of the motorized spindle are not needed, the problems of long working hours and the risk of scratching caused by single-end assembly in the prior art are solved, and the assembly efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of electric spindle production equipment technology, and more specifically to a rapid assembly device for electric spindle bearings. Background Technology

[0002] As a core component for achieving "zero transmission" in CNC machine tools, the electric spindle integrates the machine tool spindle with a built-in electric motor. With its compact structure, low inertia, and fast dynamic response, it plays a vital role in high-end manufacturing fields such as aerospace, semiconductors, and precision molds. Its operational accuracy and service life directly depend on the quality of the bearing assembly. Deviations in bearing installation position, uneven preload, or excessive coaxiality will all lead to increased vibration and thermal deformation during high-speed rotation, ultimately reducing machining accuracy and even causing equipment failure.

[0003] The patent with publication number CN118123459B discloses a rapid assembly device for electric spindle bearings. Through the cooperation of positioning unit and rotation unit, the electric spindle in the assembly hole can be automatically fixed, which improves the stability of the electric spindle when assembling the bearing. Furthermore, the dual-station clamping unit can also assemble the bearing during the replacement process, ensuring the assembly quality and efficiency of the electric spindle and bearing.

[0004] However, the aforementioned patent can only achieve bearing installation at one end of the electric spindle during the assembly process. In actual production, the spindle requires bearings at both ends for support. Therefore, the patent cannot meet the actual assembly requirements of double-end bearing support in production. The method of installing bearings at one end requires manual removal of the electric spindle from the assembly hole, followed by flipping and repositioning before the bearing at the other end can be assembled. The manual transfer and flipping process increases the risk of bumps and scratches on the electric spindle, affecting the surface accuracy of the spindle and the subsequent assembly quality. Furthermore, the manual intervention prolongs the assembly time of a single electric spindle, resulting in a longer overall assembly time and reduced assembly efficiency in large-scale batch assembly scenarios. Summary of the Invention

[0005] This invention provides a rapid assembly device for electric spindle bearings, aiming to solve the technical problems in related technologies that increase the risk of electric spindle bumps and scratches and reduce assembly efficiency caused by manual transfer and flipping of electric spindles.

[0006] The present invention provides a rapid assembly device for an electric spindle bearing, comprising:

[0007] The conveying device has a mounting bracket installed at its top.

[0008] Two sets of automatic bearing feeding assemblies are provided. The automatic bearing feeding assemblies are used to transport bearings. The automatic bearing feeding assemblies include a bearing feeding cylinder, a pusher seat, a push rod, and a pushing structure. Two material picking grooves are opened on the outer surface of one end of the bearing feeding cylinder. The pusher seat is slidably set inside the bearing feeding cylinder. The push rod is coaxially set inside the bearing feeding cylinder. The pushing structure is connected to the push rod and is used to drive the push rod and the pusher seat to move.

[0009] Two sets of bearing assembly components, two sets of automatic bearing feeding components, and two sets of bearing assembly components are symmetrically arranged on both sides of the mounting bracket. The bearing assembly components are used to assemble the bearings onto the electric spindle. Each set of bearing assembly components is connected to an electric spindle positioning component, which is used to position the electric spindle.

[0010] Two sets of lubrication components are connected to the bearing assembly components. Each lubrication component corresponds to one bearing assembly component and is used to lubricate the electric spindle.

[0011] Preferably, the pushing structure includes a telescopic component, a push plate, a push block, a reset block, and a heating element. The telescopic component is installed on one side of the mounting bracket, and its output end is connected to the push plate. The push block and the reset block are both installed on the outer surface of the push rod. The reset block is located inside the bearing feed cylinder. The heating element is connected to the reset block. A receiving groove is provided on one side of the push seat. The maximum distance between the heating element and the center line of the push rod is less than the radius of the receiving groove. The diameter of the reset block is less than the diameter of the receiving groove. The diameter of the receiving groove is less than the inner diameter of the bearing. The sum of the thickness of the reset block and the length of the heating element is less than the depth of the receiving groove, so that the reset block and the heating element can be retracted into the receiving groove.

[0012] Its effect is as follows: the telescopic component drives the push plate to move, which in turn drives the push rod and the pusher seat to move, which can accurately push the bearing in the bearing feeding cylinder to the material picking slot position to complete the bearing conveying action. The reset block can cooperate to realize the reset of the pusher seat and the push rod, ensuring the smooth progress of the next feeding process, forming a stable cyclic feeding mechanism, and improving the continuity and reliability of bearing conveying.

[0013] Preferably, the pusher seat has a through hole one on the side away from the receiving groove. The through hole one is connected to the receiving groove and is concentrically arranged with the receiving groove. The push rod passes through the inside of the through hole one, and the diameter of the push rod is smaller than the diameter of the through hole one, so that the push rod will not interfere with the pusher seat during movement. The bearing feeding cylinder has a through hole two on the end away from the picking groove. The through hole two is connected to the inside of the bearing feeding cylinder, and the diameter of the through hole two is larger than the diameter of the push block, so that the push block can pass smoothly through the through hole two and contact the pusher seat.

[0014] Preferably, the bearing assembly includes a second telescopic component, a first slide, and a first clamping component. The second telescopic component is installed on one side of the mounting bracket, and the output end of the second telescopic component is connected to the first slide. The first clamping component is installed on one side of the first slide, and the two gripper portions of the first clamping component correspond to the positions of the material picking groove. The first clamping component is used to clamp the bearing.

[0015] Preferably, the electric spindle positioning assembly includes a bracket, an adjusting threaded rod, and a positioning block. The bracket is connected to a slide block, the adjusting threaded rod is threaded to the bracket, and one end of the adjusting threaded rod is connected to the positioning block. The adjusting threaded rod is used to adjust the position of the positioning block.

[0016] Its effect is that the entire positioning process does not require additional drive components. The operator only needs to place the electric spindle directly on the electric spindle support assembly, and the automatic positioning can be completed through the linkage action of the bearing assembly assembly. No manual intervention is required for alignment, which greatly simplifies the operation process.

[0017] Preferably, the lubrication assembly includes a connecting seat, a second bracket, a splash guard, an annular diverter pipe, an oil delivery structure, and a recovery assembly. The connecting seat is connected to a first slide block. One end of the second bracket is connected to the connecting seat, and the other end of the second bracket is connected to the splash guard. The annular diverter pipe is disposed inside one end of the splash guard, and multiple atomizing nozzles are arranged in a circumferential array on the annular diverter pipe. The oil delivery structure is installed on the connecting seat and is used to deliver lubricating oil to the interior of the annular diverter pipe. The recovery assembly is connected to the splash guard and is used to recover and reuse the lubricating oil inside the splash guard.

[0018] Its effect is to form a lubricating oil film on the outer surface of the electric spindle journal, ensuring that the lubricating oil film plays a lubricating role in the best condition, minimizing the assembly friction between the bearing and the electric spindle, and ensuring a smooth bearing assembly process.

[0019] Preferably, the oil delivery structure includes a mounting base, an oil storage tank, a delivery pump, and an oil delivery pipe. The mounting base is connected to a connecting base, and both the oil storage tank and the delivery pump are connected to the mounting base. The delivery pump is connected to the oil storage tank through a pipeline, one end of the oil delivery pipe is connected to the delivery pump, and the other end of the oil delivery pipe is connected to an annular diversion pipe.

[0020] Preferably, the recovery assembly includes an oil collection hood, a return oil hose, and an oil collection tank. The oil collection hood is installed on the outer surface of the splash guard, and a recovery groove is formed on the outer surface of the splash guard. The oil collection hood is positioned corresponding to the recovery groove, and the size of the oil collection hood is larger than the size of the recovery groove to collect the lubricating oil collected in the recovery groove. One end of the return oil hose is connected to the end of the oil collection hood, and the other end of the return oil hose is connected to the oil collection tank.

[0021] Its effects are: to realize the recycling of lubricating oil, reduce the waste of lubricating oil, and achieve efficient use of resources.

[0022] Preferably, a support base is installed on the top of the mounting bracket, a telescopic component three is installed on one side of the support base, a lifting base is connected to the output end of the telescopic component three, and two clamping components two are connected to one side of the lifting base.

[0023] The beneficial effects of this invention are:

[0024] 1. Through the coordinated design of two sets of symmetrically arranged automatic bearing feeding components and bearing assembly components with the conveying device, the synchronous installation of bearings at both ends of the electric spindle can be completed in one go. There is no need for manual transfer or flipping of the electric spindle, which completely solves the problems of long working time and risk of bumps and scratches caused by single-end assembly in the existing technology, and improves the assembly efficiency.

[0025] 2. While assembling the double-end bearings of one electric spindle, the automatic positioning and atomized lubrication of the unassembled electric spindle can be completed simultaneously, avoiding errors caused by manual positioning and saving the time required for manual intervention, thus further improving the overall assembly efficiency.

[0026] 3. Link the lubrication component with the bearing assembly component. After the electric spindle is positioned, it automatically performs atomized lubrication on the journal mounting path to form a uniform lubricating oil film, minimizing the assembly friction between the bearing and the journal, ensuring a smooth bearing assembly process, and avoiding damage to parts caused by hard contact. Attached Figure Description

[0027] Figure 1 This is a first-view structural schematic diagram of the present invention.

[0028] Figure 2 This is a schematic diagram of the second perspective structure of the present invention.

[0029] Figure 3 This is the present invention. Figure 1 A magnified structural diagram of point A in the middle.

[0030] Figure 4 This is a structural schematic diagram of the slide rail mounting base and its connecting components of the present invention.

[0031] Figure 5 This is a structural schematic diagram of the bearing assembly and its connecting components of the present invention.

[0032] Figure 6 This is a schematic diagram of the automatic bearing feeding assembly of the present invention.

[0033] Figure 7 This is the present invention. Figure 6 A schematic diagram of the cross-sectional structure.

[0034] Figure 8 This is the present invention. Figure 7 A magnified structural diagram at point B in the middle.

[0035] Figure 9 This is a schematic diagram of the splash guard of the present invention.

[0036] Figure 10 This is a schematic diagram of the electric spindle clamping structure of the present invention.

[0037] Figure 11 This is a schematic diagram of the unloading assembly of the present invention.

[0038] Figure 12 This is a schematic diagram of the mounting plate of the present invention.

[0039] Figure label:

[0040] 10. Conveying device; 11. Mounting bracket; 12. Slide rail mounting seat; 13. Slide rail one; 14. Slide rail two; 15. Mounting plate; 151. Adjustment hole; 16. Support block; 20. Automatic bearing feeding assembly; 21. Bearing feeding cylinder; 211. Through hole two; 212. Picking trough; 22. Pushing seat; 221. Storage trough; 222. Through hole one; 23. Telescopic component one; 24. Push plate; 25. Push rod; 26. Push block; 27. Reset block; 28. Heating element; 29. ​​Unloading shell; 291. Feeding shell; 30. Bearing assembly assembly; 31. Telescopic component two; 32. Slide seat one; 33. Clamp 34. Support 1; 35. Adjusting threaded rod; 36. Positioning block; 40. Electric spindle clamping structure; 41. Support seat; 42. Telescopic component 3; 43. Lifting seat; 44. Clamping component 2; 50. Lubrication assembly; 51. Connecting seat; 52. Support 2; 53. Splash shield; 54. Annular diverter pipe; 55. Atomizing nozzle; 56. Mounting seat; 57. Oil reservoir; 58. Delivery pump; 59. Oil delivery pipe; 510. Oil collection hood; 511. Return hose; 512. Oil collection tank; 60. Unloading assembly; 61. Linear module; 62. Module slide; 63. Telescopic component 4; 64. Clamping component 3. Detailed Implementation

[0041] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0042] like Figures 1 to 12As shown, a rapid assembly device for electric spindle bearings according to the present invention includes a conveying device 10, multiple electric spindle support assemblies, a mounting bracket 11, two sets of automatic bearing feeding assemblies 20, two sets of bearing assembly assemblies 30, an electric spindle clamping structure 40, two sets of lubrication assemblies 50, and an unloading assembly 60. The multiple electric spindle support assemblies are evenly mounted on the conveying device 10, supporting the electric spindles so that they move synchronously with the conveying device 10. The mounting bracket 11 is connected to the conveying device 10. The two sets of automatic bearing feeding assemblies 20 and the two sets of bearing assembly assemblies 30 are symmetrically arranged on both sides of the mounting bracket 11, with each bearing assembly assembly 30 paired with one of the automatic bearing feeding assemblies 20. The bearing automatic feeding assembly 20 and bearing assembly assembly 30 are used to automatically feed the bearings and assemble them onto the electric spindle. Each bearing assembly assembly 30 is connected to an electric spindle positioning assembly. The electric spindle positioning assembly is used to position the electric spindle before assembling it with the bearing, so that the bearing is assembled in a specific position on the electric spindle. The lubrication assembly 50 is connected to the bearing assembly assembly 30, and the lubrication assembly 50 corresponds one-to-one with the bearing assembly assembly 30. The lubrication assembly 50 is used to lubricate the electric spindle, so that the bearing is assembled onto the electric spindle more smoothly. The unloading assembly 60 is installed at the top of the mounting bracket 11. The unloading assembly 60 is used to transport the assembled electric spindle and bearing on the conveying device 10 to the next station.

[0043] Along the conveying direction of the conveying device 10, the lubrication assembly 50 is located between the bearing assembly 30 and the electric spindle positioning assembly, and the automatic bearing feeding assembly 20 and the bearing assembly 30 are located between the lubrication assembly 50 and the unloading assembly 60. When assembling the electric spindle and bearing, the electric spindle is placed on the electric spindle support assembly, and as the conveying device 10 moves, the electric spindle support assembly drives the electric spindle to move. When an electric spindle moves to a position corresponding to the electric spindle positioning assembly, an electric spindle adjacent to that electric spindle along the conveying direction of the conveying device 10 corresponds to the position of the lubrication assembly 50, and is spaced apart from that electric spindle by one [unit of distance]. The electric spindle of the spindle support assembly corresponds to the position of the bearing assembly 30. At this time, the electric spindle clamping structure 40 clamps and fixes the electric spindle corresponding to the lubrication assembly 50 and the bearing assembly 30. Then, the bearing assembly 30 will assemble two bearings on the two journals of the electric spindle at the same time. Meanwhile, the lubrication assembly 50 lubricates the electric spindle without bearings, and the electric spindle positioning assembly automatically adjusts the position of the electric spindle so that the subsequent lubrication assembly 50 lubricates the installation path of the bearing on the electric spindle journal, and the subsequent bearing assembly can install the bearing at a specific position on the electric spindle journal.

[0044] The spindle section of an electric spindle is generally divided into three sections: the mounting section, the front support section, and the rear support section. The front and rear support sections are the spindle journals. The diameter of the mounting section is larger than that of the front and rear support sections, and the lengths of the front and rear support sections are different. In this case, the position of the mounting section can be adjusted by two electric spindle positioning components, that is, by adjusting the distance between the ends of the front and rear support sections and the electric spindle positioning components, so that the position of the mounting section corresponds to that of the electric spindle clamping structure 40. This allows the electric spindle clamping structure 40 to clamp the mounting section, ensuring that the bearing can be smoothly installed on the spindle journal (i.e., the front and rear support sections). If the diameters of the mounting section, front support section, and rear support section of the electric spindle are the same, the installation position of the bearing on the front and rear support sections can be adjusted by adjusting the distance between the ends of the front and rear support sections and the electric spindle positioning components.

[0045] like Figures 6 to 8 The automatic bearing feeding assembly 20 includes a bearing feeding cylinder 21 connected to the mounting bracket 11 and a telescopic component 23. Two material receiving grooves 212 are formed on the outer surface of one end of the bearing feeding cylinder 21. The length direction of the bearing feeding cylinder 21 is perpendicular to the conveying direction of the conveying device 10 and parallel to the length direction of the electric spindle. A pusher seat 22 is slidably disposed inside the bearing feeding cylinder 21. A receiving groove 221 is formed on one side of the pusher seat 22. A through hole 222 communicating with the receiving groove 221 is formed on the side of the pusher seat 22 away from the receiving groove 221. The through hole 222 is concentrically arranged with the receiving groove 221. The output end of the telescopic component 23 moves in a direction perpendicular to the conveying direction of the conveying device 10. A push plate 24 is connected to the output end of the telescopic component 23. A push rod 25 is connected to one side of the push plate 24 and passes through the through hole 222. Furthermore, the diameter of push rod 25 is smaller than the diameter of perforation 222. Push rod 25 is concentrically arranged with bearing feeding cylinder 21, and a part of push rod 25 is located inside bearing feeding cylinder 21. Push block 26 and reset block 27 are connected to the outer surface of push rod 25. Reset block 27 is located inside bearing feeding cylinder 21. Heating element 28 is installed on the side of reset block 27 away from push plate 24. The maximum distance between heating element 28 and center line of push rod 25 is less than radius of receiving groove 221. Diameter of reset block 27 is smaller than diameter of receiving groove 221. Diameter of receiving groove 221 is smaller than inner diameter of bearing. The sum of thickness of reset block 27 and length of heating element 28 is less than depth of receiving groove 221. Perforation 211 is opened at the end of bearing feeding cylinder 21 away from material receiving groove 212. Perforation 211 is connected to the inside of bearing feeding cylinder 21. Diameter of perforation 211 is larger than diameter of push block 26.

[0046] The push rod 25 is designed as a hollow structure, and its inner wall is connected to a heat insulation sleeve. The push rod 25 is made of thermally conductive metal material. When the heating element 28 is working, some of the heat will be transferred through the push rod 25 to the inside of the bearing feed cylinder 21 to preheat the other bearing inner rings located inside the bearing feed cylinder 21, thereby reducing the time required for subsequent processing of the bearing inner rings.

[0047] A feeding groove is provided on the outer surface of the bearing feeding cylinder 21 and is connected to the inside of the bearing feeding cylinder 21. The feeding groove is semi-circular in shape. A feeding shell 29 corresponding to the position of the feeding groove is connected to the outer surface of the bearing feeding cylinder 21. An inclined feeding shell 291 is connected to the end of the feeding shell 29. The length of the pusher seat 22 is greater than the width of the feeding groove.

[0048] When the automatic bearing feeding assembly 20 is feeding bearings, after the bearing assembly assembly 30 removes a bearing located inside the bearing feeding cylinder 21 and assembles it onto the electric spindle, the system sends a feeding signal. The output end of the telescopic component 23 moves towards the conveying device 10. At this time, the push plate 24 drives the push rod 25 and the push block 26 to move towards the conveying device 10, thereby causing the reset block 27 to drive the heating element 28 to move synchronously. When the push block 26 passes through the inside of the through hole 211 and is in contact with one side of the pusher seat 22, the heating element 28 just extends into the inner ring of the bearing to be picked up at the end of the bearing feeding cylinder 21. The heating element 28 preheats the inner ring of the bearing according to preset parameters, expanding the inner diameter of the bearing by means of thermal expansion and contraction. When the push block 26 drives the pusher seat 22 to move, multiple bearings located on the pusher seat 22 move synchronously by the width of one bearing, and the heating element 28 moves synchronously by the width of one bearing, so that the heating element 28 always heats the bearing to be picked up. The bearing to be picked up is moved to the position of the picking slot 212, so that the bearing assembly 30 can take out the bearing that needs to be picked up. After the pusher seat 22 pushes a bearing forward by the width of one bearing, the pusher seat 22 blocks the feeding slot. At this time, the bearing will not enter the bearing feeding cylinder 21 from the feeding slot, avoiding the premature addition of subsequent bearings and causing material congestion. After the bearing assembly 30 takes out the bearing, the output end of the telescopic component 23 moves away from the conveying device 10. At this time, the reset block 27 and the heating element 28 move accordingly. When the reset block 27 and the heating element 28 are retracted into the receiving slot 221, the reset block 27 is attached to the inner wall of the receiving slot 221 and drives the pusher seat 22 to move, so that the pusher seat 22 is reset. After the pusher seat 22 is reset, it no longer blocks the feeding slot. At this time, a bearing located inside the feeding shell 29 will enter the bearing feeding cylinder 21 from the feeding slot for automatic feeding operation. This process is repeated to form a closed loop of automated bearing conveying.

[0049] The automatic bearing feeding assembly 20 automates the entire process of bearing replenishment, quantitative feeding, and material picking location positioning, eliminating the need for manual intervention in material conveying and significantly reducing auxiliary time for electric spindle bearing assembly, thus meeting the high-efficiency operation requirements of mass production scenarios.

[0050] It should be noted that multiple resistance rods are connected to the side of the pusher seat 22 away from the receiving groove 221. The resistance rods pass through the bearing feed cylinder 21, and there is friction between the resistance rods and the bearing feed cylinder 21 to ensure that the pusher seat 22 will not move without being subjected to external force.

[0051] like Figures 3 to 5 The bearing assembly 30 includes a telescopic member 2 31 installed on one side of the mounting bracket 11. The output end of the telescopic member 2 31 moves in a direction perpendicular to the conveying direction of the conveying device 10. The output end of the telescopic member 2 31 is connected to a slide 1 32. A clamping member 1 33 is connected to one side of the slide 1 32. The clamping member 1 33 is a pneumatic gripper or a hydraulic gripper. The two gripper parts of the clamping member 1 33 correspond to the positions of the material picking groove 212.

[0052] In the initial state, the output end of the telescopic component 31 is in a retracted state, which drives the slide block 32 and the clamping component 33 to remain in the initial position close to the mounting bracket 11. At this time, the two gripper parts of the clamping component 33 are precisely aligned with the material picking groove 212 of the bearing feeding cylinder 21, ensuring that the gripper can directly contact the bearing to be picked through the material picking groove 212, laying the positioning foundation for the subsequent gripping action. After the automatic bearing feeding assembly 20 completes the heating pretreatment of the bearing to be assembled and the bearing moves to the position of the material picking groove 212, the system issues a gripping command. The two grippers of the clamping component 33 move synchronously towards each other, and through the material picking groove 212, the two grippers align with the outer ring of the bearing. After a stable clamping operation is performed, the output end of the telescopic component 2 31 moves in a direction perpendicular to the conveying device 10, driving the slide 1 32, clamping component 1 33 and bearing to move smoothly towards the electric spindle. The telescopic component 2 31 precisely controls the stroke to align the inner ring of the bearing with the journal. Then, the grippers of the clamping component 1 33 release synchronously in the opposite direction. Under the combined action of its own gravity and the pushing force of the telescopic component, the bearing is smoothly assembled to the preset installation position of the journal. After the assembly is completed, the output end of the telescopic component 2 31 retracts, driving the slide 1 32 and the clamping component back to the initial alignment position, waiting for the next material pick-up signal from the automatic bearing feeding assembly, and entering the next assembly cycle.

[0053] like Figures 3 to 4 The electric spindle positioning assembly includes a bracket 34 connected to the slide 32. An adjusting threaded rod 35 is threadedly connected to one side of the bracket 34. The length direction of the adjusting threaded rod 35 is perpendicular to the conveying direction of the conveying device 10. A positioning block 36 is connected to one end of the adjusting threaded rod 35. The diameter of the positioning block 36 is larger than the journal diameter of the electric spindle.

[0054] According to the specifications of the electric spindle to be assembled (the length differences of the mounting section, front support section, and rear support section), the operator can rotate and adjust the threaded rod 35 to move the positioning block 36 in a direction perpendicular to the conveying device 10 until the reference surface of the positioning block 36 is aligned with the preset electric spindle positioning reference. When the telescopic part 31 of the bearing assembly assembly 30 drives the slide 32 to move and assemble the bearing, the bracket 34 drives the adjusting threaded rod 35 and the positioning block 36 to move towards the unassembled electric spindle and contact the end of the electric spindle without the bearing and apply a smooth thrust, pushing the electric spindle to move on the electric spindle support assembly, so that both ends of the electric spindle move to the preset electric spindle positioning reference. After the electric spindle is positioned, the electric spindle will be lubricated by the lubrication assembly 50.

[0055] like Figures 3 to 5 The lubrication assembly 50 includes a connecting seat 51 connected to the slide 32. A bracket 52 is connected to one side of the connecting seat 51. A splash guard 53 is connected to the end of the bracket 52 away from the connecting seat 51. The length direction of the splash guard 53 is perpendicular to the conveying direction of the conveying device 10, and the inner diameter of the splash guard 53 is larger than the journal diameter of the electric spindle. An annular diverter 54 is provided inside the splash guard 53. Multiple atomizing nozzles 55 are arranged in a circumferential array on the annular diverter 54. The minimum vertical distance between the center of the splash guard 53 and the atomizing nozzles 55 is larger than the journal diameter of the electric spindle. An oil delivery structure is connected to the connecting seat 51. The oil delivery structure is connected to the annular diverter 54 and is used to deliver lubricating oil to the interior of the annular diverter 54.

[0056] The oil delivery structure includes a mounting base 56 connected to the connecting base 51. The mounting base 56 is L-shaped. An oil storage tank 57 and a delivery pump 58 are connected to the mounting base 56. The delivery pump 58 is connected to the oil storage tank 57 through a pipe. An oil delivery pipe 59 is connected to the outlet of the delivery pump 58. The oil delivery pipe 59 passes through the splash guard 53 and extends into the interior of the splash guard 53. The oil delivery pipe 59 is connected to the annular diversion pipe 54.

[0057] Initially, the lubrication assembly is in standby position. After the electric spindle is precisely positioned by the positioning assembly, the conveying device transports the positioned electric spindle to the position corresponding to the splash guard 53. At this time, the splash guard 53 is coaxially arranged with the electric spindle journal. When the bearing is assembled on the lubricated electric spindle, the movement of the slide block 32 synchronously drives the splash guard 53 of the lubrication assembly to move closer to the electric spindle journal until the electric spindle journal extends into the splash guard 53. When the bearing is assembled in the assembly position of the electric spindle, the atomizing nozzle 55 moves to the assembly position and onto the electric spindle. When the journal initially enters the interior of the splash guard 53, the delivery pump 58 starts, drawing out the lubricating oil from the oil tank 57 and delivering it through the oil delivery pipe 59 to the annular diverter pipe 54 inside the splash guard 53. The oil is then atomized into a uniform mist through multiple atomizing nozzles 55. The atomized oil mist is sprayed onto the outer surface of the electric spindle journal through the atomizing nozzles 55 to form a lubricating oil film. After the bearing assembly is completed, the slide block 32 resets and drives the splash guard 53 to reset. The delivery pump 58 is in standby mode, waiting for the next electric spindle positioning to trigger the next lubrication cycle.

[0058] like Figures 3 to 5 and Figure 9 A recovery assembly is connected to the splash guard 53. The recovery assembly is used to recover and reuse the lubricating oil inside the splash guard 53. The recovery assembly includes a recovery trough opened on the outer surface of the splash guard 53 and an oil collection cover 510 installed on the outer surface of the splash guard 53. The position of the oil collection cover 510 corresponds to that of the recovery trough, and the size of the oil collection cover 510 is larger than that of the recovery trough. The bottom end of the oil collection cover 510 is connected to a return oil hose 511. One end of the return oil hose 511 is connected to an oil collection tank 512. The oil collection tank 512 is installed on the mounting bracket 11.

[0059] During the atomized lubrication process, the atomized oil mist that does not adhere to the surface of the electric spindle journal will condense into liquid lubricating oil inside the splash guard 53, or directly form oil droplets that flow along the inner wall of the splash guard 53. Some of the excess lubricating oil that adheres to the surface of the journal will also drip to the bottom of the splash guard 53 under the action of gravity. The condensed lubricating oil is discharged from the splash guard 53 through the recovery tank, and under the collection action of the oil collection hood 510, the lubricating oil flows into the oil collection tank 512 along the return oil hose 511, completing the lubricating oil recovery operation. A filter structure can be installed inside the oil collection tank 512 to filter the collected lubricating oil.

[0060] like Figure 10The electric spindle clamping structure 40 includes a support base 41 mounted on the top of the mounting bracket 11. A telescopic member 42 is mounted on one side of the support base 41. The output shaft of the telescopic member 42 moves in a direction perpendicular to the conveying device 10. The output end of the telescopic member 42 is connected to a lifting base 43. Two clamping members 44 are connected to one side of the lifting base 43. The bearing automatic feeding assembly 20 corresponds to the position of one clamping member 44, and the lubrication assembly 50 corresponds to the position of the other clamping member 44, so that the two clamping members 44 can clamp the electric spindles corresponding to the bearing automatic feeding assembly 20 and the lubrication assembly 50 respectively.

[0061] When lubricating and assembling two adjacent electric spindles, the telescopic component 3 42 is activated and drives the lifting seat 43 and the two clamping components 2 44 to move downward. The two clamping components 2 44 clamp the electric spindle corresponding to the bearing automatic feeding assembly 20 and the lubrication assembly 50. Then the electric spindle can be assembled and lubricated, avoiding the electric spindle from shifting position during the assembly and lubrication process.

[0062] like Figure 11 The unloading assembly 60 includes a linear module 61 mounted on the top of the mounting bracket 11. The length direction of the linear module 61 is parallel to the length direction of the conveying device 10. A module slide 62 is provided on the linear module 61. The linear module 61 drives the module slide 62 to move. A telescopic component 63 is connected to the module slide 62. A clamping component 64 is connected to the output end of the telescopic component 63.

[0063] By moving the telescopic component 4 63 and clamping the clamping component 3 64, the assembled electric spindle can be clamped from the electric spindle support assembly, and the assembled electric spindle can be separated from the conveying device 10 by moving the linear module 61, and the electric spindle can be moved to the next station.

[0064] like Figure 12 The electric spindle support assembly includes a mounting plate 15 connected to the conveying device 10. A plurality of adjustment holes 151 are provided on one side of the mounting plate 15. Two support blocks 16 are mounted on the mounting plate 15, and each of the two support blocks 16 has a V-shaped support groove.

[0065] By connecting the support block 16 to the adjustment holes 151 at different positions, the distance between two adjacent support blocks 16 can be adjusted, thereby better adapting to and supporting electric spindles of greater length.

[0066] like Figures 3 to 5 A slide rail mounting base 12 is installed on one side of the mounting bracket 11, and a slide rail 13 is installed on one side of the slide rail mounting base 12. The slide rail 13 is slidably connected to the slide rail 13. A slide rail 2 14 is installed on the side of the slide rail mounting base 12 adjacent to the slide rail 13. The mounting base 56 is slidably connected to the slide rail 2 14.

[0067] The length directions of slide rail 13 and slide rail 2 are both perpendicular to the length direction of the conveying device 10. Slide rail 13 and slide rail 2 are used to ensure the stability of slide block 32 and mounting base 56 during movement.

[0068] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" 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 simplifying the description, and are not intended to 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.

[0069] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0070] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A rapid assembly device for electric spindle bearings, characterized in that, include: The conveying device (10) has a mounting bracket (11) installed at its top. Two sets of automatic bearing feeding assemblies (20) are used to feed bearings. The automatic bearing feeding assembly (20) includes a bearing feeding cylinder (21), a pusher seat (22), a push rod (25) and a pushing structure. Two material picking grooves (212) are opened on the outer surface of one end of the bearing feeding cylinder (21). The pusher seat (22) is slidably set inside the bearing feeding cylinder (21). The push rod (25) is coaxially set inside the bearing feeding cylinder (21). The pushing structure is connected to the push rod (25). The pushing structure is used to drive the push rod (25) and the pusher seat (22) to move. Two sets of bearing assembly components (30), two sets of automatic bearing feeding components (20) and two sets of bearing assembly components (30) are arranged symmetrically on both sides of the mounting bracket (11). The bearing assembly components (30) are used to assemble the bearings on the electric spindle. Each set of bearing assembly components (30) is connected to an electric spindle positioning component. The electric spindle positioning component is used to position the electric spindle. The bearing assembly components include a telescopic component two (31), a slide block one (32) and a clamping component one (33). The telescopic component two (31) is installed on one side of the mounting bracket (11). The output end of the telescopic component two (31) is connected to the slide block one (32). The clamping component one (33) is installed on one side of the slide block one (32). The two gripper parts of the clamping component one (33) correspond to the position of the material picking groove (212). The clamping component one (33) is used to clamp the bearing. Two sets of lubrication components (50) are connected to the bearing assembly (30). The lubrication components (50) correspond one-to-one with the bearing assembly (30). The lubrication components (50) are used to lubricate the electric spindle.

2. The rapid assembly equipment for electric spindle bearings according to claim 1, characterized in that, The pushing structure includes a telescopic component (23), a push plate (24), a push block (26), a reset block (27), and a heating element (28). The telescopic component (23) is installed on one side of the mounting bracket (11). The output end of the telescopic component (23) is connected to the push plate (24). The push block (26) and the reset block (27) are both installed on the outer surface of the push rod (25). The reset block (27) is located inside the bearing feed cylinder (21). The heating element (28) is connected to the reset block (27). A receiving groove (221) is provided on one side of the push seat (22). The maximum distance between the heating element (28) and the center line of the push rod (25) is less than the radius of the receiving groove (221). The diameter of the reset block (27) is less than the diameter of the receiving groove (221). The diameter of the receiving groove (221) is less than the inner diameter of the bearing. The sum of the thickness of the reset block (27) and the length of the heating element (28) is less than the depth of the receiving groove (221).

3. The rapid assembly equipment for electric spindle bearings according to claim 2, characterized in that, The pusher seat (22) has a through hole 1 (222) on the side away from the receiving groove (221). The through hole 1 (222) is connected to the receiving groove (221) and is concentrically arranged with the receiving groove (221). The push rod (25) passes through the inside of the through hole 1 (222) and the diameter of the push rod (25) is smaller than the diameter of the through hole 1 (222) so that the push rod (25) will not interfere with the pusher seat (22) during the movement. The bearing feed cylinder (21) has a through hole 2 (211) on the end away from the material taking groove (212). The through hole 2 (211) is connected to the inside of the bearing feed cylinder (21) and the diameter of the through hole 2 (211) is larger than the diameter of the push block (26) so that the push block (26) can pass smoothly through the through hole 2 (211) and contact the pusher seat (22).

4. The rapid assembly equipment for an electric spindle bearing according to claim 1, characterized in that, The electric spindle positioning assembly includes a bracket (34), an adjusting threaded rod (35), and a positioning block (36). The bracket (34) is connected to the slide block (32), the adjusting threaded rod (35) is threadedly connected to the bracket (34), and one end of the adjusting threaded rod (35) is connected to the positioning block (36). The adjusting threaded rod (35) is used to adjust the position of the positioning block (36).

5. The rapid assembly equipment for an electric spindle bearing according to claim 1, characterized in that, The lubrication assembly includes a connecting seat (51), a second bracket (52), a splash guard (53), an annular diverter (54), an oil delivery structure, and a recovery assembly. The connecting seat (51) is connected to the first slide (32). One end of the second bracket (52) is connected to the connecting seat (51), and the other end of the second bracket (52) is connected to the splash guard (53). The annular diverter (54) is located inside one end of the splash guard (53). Multiple atomizing nozzles (55) are arranged in a circumferential array on the annular diverter (54). The oil delivery structure is installed on the connecting seat (51) and is used to deliver lubricating oil to the inside of the annular diverter (54). The recovery assembly is connected to the splash guard (53) and is used to recover and reuse the lubricating oil inside the splash guard (53).

6. The rapid assembly equipment for an electric spindle bearing according to claim 5, characterized in that, The oil delivery structure includes a mounting base (56), an oil storage tank (57), a delivery pump (58), and an oil delivery pipe (59). The mounting base (56) is connected to the connecting base (51). The oil storage tank (57) and the delivery pump (58) are both connected to the mounting base (56). The delivery pump (58) is connected to the oil storage tank (57) through a pipe. One end of the oil delivery pipe (59) is connected to the delivery pump (58), and the other end of the oil delivery pipe (59) is connected to the annular diversion pipe (54).

7. The rapid assembly equipment for an electric spindle bearing according to claim 5, characterized in that, The recovery assembly includes an oil collection hood (510), an oil return hose (511), and an oil collection tank (512). The oil collection hood (510) is installed on the outer surface of the splash guard (53). A recovery groove is opened on the outer surface of the splash guard (53). The position of the oil collection hood (510) corresponds to the position of the recovery groove, and the size of the oil collection hood (510) is larger than the size of the recovery groove to collect the lubricating oil collected in the recovery groove. One end of the oil return hose (511) is connected to the end of the oil collection hood (510), and the other end of the oil return hose (511) is connected to the oil collection tank (512).

8. The rapid assembly equipment for an electric spindle bearing according to claim 1, characterized in that, The top of the mounting bracket (11) is equipped with a support base (41), and a telescopic component three (42) is installed on one side of the support base (41). The output end of the telescopic component three (42) is connected to a lifting base (43), and two clamping components two (44) are connected to one side of the lifting base (43).

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