A multi-stage crankshaft deburring machine

Abstract

The utility model discloses a kind of crankshaft multistage deburring machines, comprising: whole machine frame guard shield, step jacking mechanism, tailstock assembly, crankshaft processing assembly and conveying line;Whole machine frame guard shield both sides are respectively equipped with inlet and outlet;Step jacking mechanism is located in whole machine frame guard shield, and two ends are respectively extended to inlet and outlet;Tailstock assembly includes multiple sets of relatively arranged main, driven tailstock assembly, and multiple tailstock assemblies are distributed in the both sides of step jacking mechanism;Crankshaft processing assembly includes shaft shoulder deburring mechanism, eccentric polishing mechanism and long-short shaft polishing mechanism, and crankshaft processing assembly is set on main tailstock assembly;Conveying line includes feeding and discharging conveying line;Feeding and discharging conveying line includes chain, and multiple sets of symmetrically arranged support V blocks are arranged on chain, for supporting the long-short shaft of crankshaft.The utility model is used to solve the technical problems of low processing efficiency, insufficient automation, uneven processing quality and low equipment integration in traditional crankshaft deburring process.

Description

Technical Field

[0001] This utility model relates to the field of crankshaft processing technology, specifically to a multi-stage deburring machine for crankshafts. Background Technology

[0002] As a core component of power machinery such as engines and compressors, the surface quality of the crankshaft directly affects the assembly accuracy, operational stability, and service life of the entire machine. During crankshaft machining, burrs are easily generated at the junctions of complex structures such as shoulders, eccentric parts, and long and short shafts. If not thoroughly removed, this can lead to assembly jamming, stress concentration, and even accelerated wear of parts. Traditional deburring processes often employ manual grinding or single-station mechanical processing, which has the following shortcomings: Low processing efficiency: Different parts need to be processed in steps, the process is complicated and it is difficult to adapt to the needs of mass production; Insufficient automation: Reliance on manual loading, unloading, and positioning adjustments makes it easy for operational errors to lead to unstable processing accuracy; Uneven processing quality: A single mechanism cannot take into account the burr characteristics of different structures such as shaft shoulders, eccentricity, and long and short shafts, which can easily lead to problems such as missed processing or over-grinding. Low equipment integration: Multiple processes require multiple machines to work together, which increases the floor space and equipment investment costs.

[0003] Therefore, developing a crankshaft machining equipment capable of multi-station integrated processing has become an important direction for improving crankshaft machining efficiency and quality. Utility Model Content

[0004] In order to overcome the shortcomings of the existing technology, the purpose of this utility model is to provide a multi-stage deburring machine for crankshafts, which solves the technical problems of low processing efficiency, insufficient automation, uneven processing quality and low equipment integration in the traditional crankshaft deburring process.

[0005] To solve at least one of the above problems, the technical solution adopted by this utility model is as follows: A multi-stage deburring machine for crankshafts includes: The machine frame is covered, with a feed inlet and a discharge outlet on each side. The step lifting mechanism is located inside the machine frame cover, with both ends extending to the feed inlet and the discharge outlet, respectively. The top components include multiple sets of relatively arranged active and driven top components, with the multiple sets of top components evenly distributed on both sides of the step lifting mechanism; The crankshaft processing assembly includes a shoulder deburring mechanism, an eccentric polishing mechanism, and a long and short shaft polishing mechanism; the crankshaft processing assembly is mounted on the active tip assembly and is used to process the crankshaft's shoulders, eccentricity, and long and short shafts; The conveyor lines include a loading conveyor line and a unloading conveyor line located outside the machine frame cover; the loading conveyor line and the unloading conveyor line include chains, on which multiple sets of symmetrically arranged support V-blocks are arranged to support the long and short shafts of the crankshaft. The loading conveyor line is located at the inlet and the unloading conveyor line is located at the outlet.

[0006] Preferably, there are four groups of active and passive tipping components, arranged in the following order along the conveying direction: a first active tipping component and a first passive tipping component, a second active tipping component and a second passive tipping component, a third active tipping component and a third passive tipping component, and a fourth active tipping component and a fourth passive tipping component.

[0007] Preferably, there are two sets of eccentric polishing mechanisms; The first active center assembly is equipped with a shoulder deburring mechanism, the second active center assembly is equipped with a first set of eccentric polishing mechanisms, the third active center assembly is equipped with a second set of eccentric polishing mechanisms, and the fourth active center assembly is equipped with a long and short shaft polishing mechanism.

[0008] Preferably, the step lifting mechanism includes: a step support assembly, a step lifting assembly, and a lifting crossbeam assembly; The step support assembly includes: a secondary lifting base, with multiple linear bearings on the top of the secondary lifting base; a lifting guide shaft is installed inside the linear bearings; a synchronous shaft is installed at the bottom of the secondary lifting base through a bearing seat, and the synchronous shaft engages with the lifting guide shaft through gears. The step lifting assembly includes: a tooling lifting rod, the top of which is equipped with a guide rail, the bottom of which is connected to a lifting guide shaft, and a lifting cylinder is provided, which is used to lift the tooling lifting rod; The lifting beam assembly includes: a beam, with multiple V-shaped supports on the top of the beam to support the crankshaft, a guide rail connected to the bottom via a slider, and the side of the beam connected to the output gear of the servo motor.

[0009] Preferably, the active centering assembly includes: a first bearing housing assembly, a first slide assembly, a motor, and a cylinder; The first bearing housing assembly includes a bearing housing, a main shaft is provided inside the bearing housing, and a center is installed at the end of the main shaft to hold the short shaft end of the crankshaft. The first slide assembly includes a base plate, a slide rail on the base plate, a pad connected to the slide rail via a slider, and a bearing seat mounting base on the top of the pad, which is connected to the bearing seat. The motor is mounted on a bearing housing, and its output end is connected to the main shaft via a coupling; The cylinder is mounted on the side of the base plate and connected to the pad plate via a pusher.

[0010] Preferably, the driven center assembly includes: a second bearing housing assembly, a second slide assembly, and a cylinder; The second bearing housing assembly includes a bearing housing, a main shaft is provided inside the bearing housing, and a center is installed at the end of the main shaft to hold the long shaft end of the crankshaft. The second slide assembly includes a base plate, on which a slide rail is provided. The slide rail is slidably connected to a pad via a slider. A bearing seat mounting base is provided on the top of the pad, and the bearing seat mounting base is connected to the bearing seat. The cylinder is mounted on the side of the base plate and connected to the pad plate via a pusher.

[0011] Preferably, the shoulder deburring mechanism includes: a shoulder moving assembly and a planar deburring mechanism; The shoulder moving assembly includes: a base, a guide rail on the top of the base, and a support connected to the guide rail via a slider; a cylinder is connected to one side of the base, and the cylinder is connected to the support via a floating joint. The planar deburring mechanism includes: a dual servo power head side-mounted, the bottom of which is connected to a support, and a shoulder thrust brush mounted at the end via an elastic clamp.

[0012] Preferably, the eccentric polishing mechanism includes: an eccentric polishing base assembly, an eccentric polishing floating assembly, and an eccentric polishing spindle assembly; The eccentric polishing base assembly includes: a base, with a transverse guide rail on the front and a spindle cylinder mounted on the side; The eccentric polishing floating assembly includes: a motor mounting plate, on the top of which a motor is mounted, and a motor V-belt pulley connected to the motor output end; the back of the motor mounting plate is slidably connected to the transverse guide rail via a slider, and the side is connected to the main shaft cylinder via a cylinder connector; The eccentric polishing spindle assembly includes: a drive shaft, an intermediate shaft, and a main rotating shaft. Each shaft has a drive V-belt pulley, an intermediate V-belt pulley, and a drive V-belt pulley at its end; an eccentric shaft brush is installed at the other end of the main rotating shaft. The motor V-belt pulley, drive V-belt pulley, intermediate V-belt pulley, and drive V-belt pulley are connected by belts for transmission.

[0013] Preferably, the long and short axis polishing mechanism includes: a long and short axis polishing base assembly, a long and short axis polishing slide assembly, and a long and short axis polishing brush assembly; The long and short axis polishing base assembly includes: a base, a longitudinal cylinder mounted on the top of the base, and a longitudinal guide rail on the front; The long and short shaft polishing slide assembly includes: a first guide rail mounting plate and a long and short shaft polishing motor fixing plate. The back of the first guide rail mounting plate is slidably connected to the longitudinal guide rail, and the front is slidably connected to the second guide rail mounting plate. The back of the long and short shaft polishing motor fixing plate is connected to the second guide rail mounting plate, the top is equipped with a long and short shaft polishing motor, and the side is connected to a cylinder. The output end of the long and short shaft polishing motor is equipped with a motor V-belt pulley. The long and short shaft polishing brush assembly includes: a long and short brush shaft seat with a brush shaft inside, a second guide rail mounting plate connected to the back of the long and short brush shaft seat, a driven V-belt pulley at the end of the brush shaft near the motor V-belt pulley, and short and long shaft brushes installed at the other end; The motor V-belt pulley and the driven V-belt pulley are connected by a main and auxiliary shaft belt for transmission.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: (1) Through the integrated design of four sets of top components and corresponding processing mechanisms (shoulder deburring, two sets of eccentric polishing, long and short shaft polishing), the crankshaft can be continuously processed in multiple processes on a single machine, reducing the process connection time and meeting the needs of mass production.

[0015] (2) The step lifting mechanism is used in conjunction with the conveyor line to realize the automatic feeding and unloading of the crankshaft, reducing manual intervention; the active top component drives the crankshaft to rotate through the motor, and cooperates with the automated feeding of each processing mechanism to ensure that the processing process is stable and controllable.

[0016] (3) Design special processing mechanisms for different parts of the crankshaft (shoulder, eccentricity, long and short shafts), such as shoulder deburring mechanism, eccentricity polishing mechanism and long and short shaft polishing mechanism. Combine the positioning and rotation of the top components to avoid missed processing or excessive polishing and improve the consistency of surface quality.

[0017] (4) High equipment integration: Multiple top components, processing mechanisms and conveying systems are integrated into the frame of the whole machine, reducing the floor space and equipment investment costs, while optimizing the working environment through the cover and oil mist collector.

[0018] (5) High adaptability: Through the adjustable design of the support V block, top components and various mechanisms, it can adapt to the processing requirements of crankshafts of different specifications and improve the versatility of the equipment.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0020] Figure 1 This is an overall view of the deburring machine according to an embodiment of the present utility model; Figure 2 This is a structural diagram of the combined conveyor line and lifting mechanism according to an embodiment of the present utility model; Figure 3 This is a structural diagram of the combination of the top component and the processing component in an embodiment of the present utility model; Figure 4 This is a structural diagram of the step lifting mechanism according to an embodiment of the present utility model; Figure 5 This is a structural diagram of the active top-mounted component according to an embodiment of the present invention; Figure 6 This is a structural diagram of the driven center component according to an embodiment of the present utility model; Figure 7 This is a structural diagram of the shoulder deburring mechanism according to an embodiment of the present invention; Figure 8 This is a structural diagram of the eccentric polishing mechanism according to an embodiment of the present utility model; Figure 9 This is a structural diagram of the long and short axis polishing mechanism according to an embodiment of the present invention.

[0021] Explanation of reference numerals: 1. Machine frame cover; 2. Crankshaft oil mist collector; 3. Control box; 4. Feed inlet; 5. Middle double door; 6. Transparent window; 7. Loading conveyor line; 8. Unloading conveyor line; 9. Support V-block; 10. Active center assembly; 11. Driven center assembly; 12. Shoulder deburring mechanism; 13. Eccentric polishing mechanism; 14. Long and short shaft polishing mechanism; 15. Crankshaft; 16. Auxiliary machine lifting seat; 17. Linear bearing; 18. Support rod ; 19. Lifting guide shaft; 20. Synchronous shaft; 21. Aluminum connecting plate; 22. Tooling lifting rod; 23. Lifting cylinder; 24. Crossbeam; 25. V-shaped support; 26. Servo motor; 27. Bearing housing; 28. Spindle; 29. ​​Center; 30. Base plate; 31. Slide rail; 32. Slider; 33. Pad; 34. Motor; 35. Cylinder; 36. Protective cover; 37. Center fixing seat; 38. Center mounting seat; 39. Base; 40. Guide rail; 4 1. Support; 42. Shoulder transverse movement cylinder fixing plate; 43. Floating joint; 44. Side mounting of dual servo power head; 45. Elastic chuck; 46. Shoulder thrust brush; 47. Transverse guide rail; 48. Main spindle cylinder; 49. Motor mounting plate; 50. Motor V-belt pulley; 51. Cylinder joint; 52. Adjusting seat; 53. Drive shaft seat; 54. Drive shaft; 55. Drive V-belt pulley; 56. Intermediate shaft seat; 57. Intermediate shaft; 58. Intermediate V-belt pulley; 59. Main rotor 60. Shaft seat; 61. Main shaft; 62. Driven V-belt pulley; 63. Eccentric shaft brush; 64. Base; 65. Longitudinal cylinder; 66. Longitudinal guide rail; 67. First guide rail mounting plate; 68. Second guide rail mounting plate; 69. Long and short shaft polishing motor fixing plate; 70. Long and short shaft polishing motor; 71. Long and short brush shaft seat; 72. Brush shaft; 73. Driven V-belt pulley; 74. Brush mounting seat; 75. Short shaft brush; 76. Long shaft brush; 77. Main and auxiliary shaft belts. Detailed Implementation

[0022] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

[0023] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0024] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0025] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0026] See Figures 1-2 This utility model discloses a multi-stage deburring machine for crankshafts, including: a machine frame cover 1, a step lifting mechanism, a top component, a crankshaft processing component, and a conveyor line.

[0027] The top of the machine frame cover 1 is equipped with a crankshaft oil mist collector 2, the front is equipped with a control box 3, and the two sides are equipped with a feed inlet 4 and a discharge outlet respectively. The control box 3 is electrically connected to the electrical components inside the cover and the crankshaft oil mist collector 2 through wires installed in the connectors and square tubes.

[0028] The step lifting mechanism is located inside the machine frame cover 1, with its two ends extending to the feed inlet 4 and the discharge outlet, respectively.

[0029] The top component includes multiple sets of active top components 10 and driven top components 11 arranged opposite to each other, with the multiple sets of top components evenly distributed on both sides of the step lifting mechanism.

[0030] The crankshaft processing assembly includes a shoulder deburring mechanism 12, an eccentric polishing mechanism 13, and a long and short shaft polishing mechanism 14. The crankshaft processing assembly is mounted on the active tip assembly 10 and is used to process the shoulders, eccentricity, and long and short shafts of the crankshaft 15.

[0031] The conveyor lines include a loading conveyor line 7 and a discharging conveyor line 8 located outside the machine frame cover 1. The loading conveyor line 7 and the discharging conveyor line 8 include chains driven by drive shafts connected to the output end of motors. Multiple sets of symmetrically arranged support V-blocks 9 are arranged on the chains to support the long and short shafts of the crankshaft 15. The loading conveyor line 7 is located at the feed inlet 4, and the discharging conveyor line 8 is located at the discharge outlet.

[0032] See Figure 1 In one possible embodiment, the front and back of the machine frame cover 1 are provided with middle double doors 5, and each door is provided with a transparent window 6 and a handle.

[0033] See Figure 1 In one possible embodiment, a transparent window 6 is provided above the feed inlet 4 and the discharge outlet.

[0034] In one possible embodiment, there are four groups of active tip assembly 10 and driven tip assembly 11, arranged in sequence along the conveying direction: a first active tip assembly and a first driven tip assembly, a second active tip assembly and a second driven tip assembly, a third active tip assembly and a third driven tip assembly, and a fourth active tip assembly and a fourth driven tip assembly.

[0035] See Figure 3 In one possible embodiment, there are two sets of eccentric polishing mechanisms 13; The first active tip assembly is equipped with a shoulder deburring mechanism 12, the second active tip assembly is equipped with a first set of eccentric polishing mechanisms, the third active tip assembly is equipped with a second set of eccentric polishing mechanisms, and the fourth active tip assembly is equipped with a long and short shaft polishing mechanism 14.

[0036] See Figure 4 In one possible embodiment, the step lifting mechanism includes: a step support assembly, a step lifting assembly, and a lifting crossbeam assembly; The step support assembly includes a secondary lifting base 16, with multiple linear bearings 17 and multiple sets of symmetrically arranged support rods 18 on the top of the secondary lifting base 16; a lifting guide shaft 19 is provided inside the linear bearing 17, and a synchronous shaft 20 is provided at the bottom of the secondary lifting base 16 through a bearing seat, and the synchronous shaft 20 lifts the guide shaft 19 through gear meshing; the top of the support rod 18 is connected to symmetrically arranged aluminum connecting plates 21 through a baffle fixing block. The step lifting assembly includes a tooling lifting rod 22. The tooling lifting rod 22 is provided with a guide rail 40 at the top and a lifting guide shaft 19 at the bottom. It is also provided with a lifting cylinder 23. The lifting cylinder 23 is used to lift the tooling lifting rod 22. Through gear meshing between the lifting guide shaft 19 and the synchronous shaft 20, the tooling lifting rod 22 is lifted synchronously at the front, middle and rear. The lifting beam assembly includes a beam 24. The top of the beam 24 is provided with multiple V-shaped support members 25 for supporting the crankshaft 15. The bottom is connected to the guide rail 40 through a slider 32. The side of the beam 24 is provided with a truss rack, which is connected to the output gear of the servo motor 26. During loading, the output gear and rack of the servo motor 26 drive the crossbeam 24 to slide on the guide rail 40, so that the crossbeam 24 with V-shaped support members 25 enters the loading conveyor line 7 through the feed port 4 until it reaches the bottom of the corresponding support V block 9. The lifting cylinder 23 lifts the crossbeam 24, so that the multiple V-shaped support members 25 on the crossbeam 24 lift the multiple crankshafts to be processed on the support V block 9. After the crankshafts to be processed are separated from the support V block 9, the output gear and rack of the servo motor 26 drive the crossbeam 24 to slide on the guide rail 40, so that the crossbeam 24 supporting the crankshafts to be processed returns to the whole machine frame cover 1 through the feed port 4. The crankshafts to be processed are fixed, rotated and processed by each crankshaft processing component and its configured top component. During unloading, the processed crankshafts 15 on the crossbeam 24 enter the unloading conveyor line 8 through the discharge port until they reach the top of the corresponding support V block 9. The crossbeam 24 is lowered by the lifting cylinder 23, so that multiple processed crankshafts 15 on the V-shaped support 25 fall onto the support V block 9 of the unloading conveyor line 8 and detach from the V-shaped support 25.

[0037] See Figure 5 In one possible embodiment, the active tip assembly 10 includes a first bearing housing assembly, a first slide assembly, a motor 34, a cylinder 35, and a protective cover 36. The first bearing housing assembly includes a bearing housing 27, a main shaft 28 is provided inside the bearing housing 27, and a center 29 is installed at the end of the main shaft 28 for supporting the short shaft end of the crankshaft 15. The first slide assembly includes a base plate 30, on which a slide rail 31 is provided. The slide rail 31 is slidably connected to a pad 33 via a slider 32. A bearing seat mounting seat is provided on the top of the pad 33, and the bearing seat mounting seat is connected to the bearing seat 27. The motor 34 is mounted on the bearing housing via a guide shaft and a mounting plate, and its output end is connected to the main shaft 28 via a coupling to drive the center 29 to rotate. The cylinder 35 is installed on the side of the base plate 30 and connected to the pad 33 through a pusher, and is used to drive the pad 33 to slide on the slide rail 31 via the slider 32; The protective cover 36 is located above the base plate 30 and is used to protect the slide rail 31, motor 34 and cylinder 35.

[0038] See Figure 6 In one possible embodiment, the driven tip assembly 11 includes a second bearing housing assembly, a second slide assembly, a cylinder 35, and a protective cover 36. The second bearing housing assembly includes a bearing housing 27, a main shaft 28 is provided inside the bearing housing 27, a center fixing seat 37 is provided at the end of the main shaft 28, a center mounting seat 38 is provided inside the center fixing seat 37, and a center 29 is installed on the center mounting seat 38 for supporting the long shaft end of the crankshaft 15. The second slide assembly includes a base plate 30, on which a slide rail 31 is provided. The slide rail 31 is slidably connected to a pad 33 via a slider 32. A bearing seat mounting seat is provided on the top of the pad 33, and the bearing seat mounting seat is connected to the bearing seat 27. The cylinder 35 is installed on the side of the base plate 30 and connected to the pad 33 through a pusher, and is used to drive the pad 33 to slide on the slide rail 31 via the slider 32; The protective cover 36 is located above the base plate 30 and is used to protect the slide rail 31 and the cylinder 35.

[0039] See Figure 7 In one possible embodiment, the shoulder deburring mechanism 12 includes: a shoulder moving assembly and a planar deburring mechanism; The shoulder moving assembly includes: a base 39, a guide rail 40 on the top of the base 39, and a support 41 connected to the guide rail 40 via a slider 32; a cylinder 35 is connected to one side of the base 39 via a shoulder transverse movement cylinder fixing plate 42, and the cylinder 35 is connected to the support 41 via a floating joint 43, which is used to drive the support 41 to slide on the guide rail 40 via the slider 32; The planar deburring mechanism includes: a dual servo power head side mount 44, the bottom of which is connected to a support 41, and a shoulder thrust brush 46 is mounted at the end via an elastic clamp 45. The dual servo power head side mount 44 drives the shoulder thrust brush 46 to rotate, thereby deburring the shoulder of the crankshaft 15.

[0040] See Figure 8 In one possible embodiment, the eccentric polishing mechanism 13 includes an eccentric polishing base assembly, an eccentric polishing floating assembly, and an eccentric polishing spindle assembly. The eccentric polishing base assembly includes: a base 39, with a transverse guide rail 47 on the front and a spindle cylinder 48 mounted on the side; The eccentric polishing floating assembly includes: a motor mounting plate 49, a motor 34 mounted on the top of the motor mounting plate 49, and a motor V-belt pulley 50 connected to the motor output end; the back of the motor mounting plate 49 is slidably connected to the transverse guide rail 47 via a slider 32, and the side is connected to the spindle cylinder 48 via a cylinder connector 51, and slides along the transverse guide rail 47 under the drive of the spindle cylinder 48. The eccentric polishing spindle assembly includes: an adjusting seat 52, a drive shaft seat 53 connected to the front of the adjusting seat 52, a drive shaft 54 ​​rotatably mounted inside the drive shaft seat 53, a drive V-belt pulley 55 at the end of the drive shaft 54, and a drive V-belt pulley 55 connected to a motor V-belt pulley 50 via a belt; an intermediate shaft seat 56 mounted on the front of the drive shaft seat 53, an intermediate shaft 57 rotatably mounted inside the intermediate shaft seat 56, an intermediate V-belt pulley 58 at the end of the intermediate shaft 57; and a main rotating shaft seat 59 mounted on the front of the drive shaft seat 53, a main rotating shaft 60 rotatably mounted inside the main rotating shaft seat 59, a drive V-belt pulley 61 at the end of the main rotating shaft 60 near the intermediate V-belt pulley 58, and an eccentric shaft brush 62 mounted at the other end. The transmission V-belt pulley 55 is connected to the intermediate V-belt pulley 58 and the drive V-belt pulley 61 by a belt, and under the drive of the motor 34, it drives the eccentric shaft brush 62 to rotate and polish the eccentric part of the crankshaft 15.

[0041] See Figure 9 In one possible embodiment, the long and short axis polishing mechanism 14 includes a long and short axis polishing base assembly, a long and short axis polishing slide assembly, and a long and short axis polishing brush assembly. The long and short axis polishing base assembly includes a base 63, a longitudinal cylinder 64 is mounted on the top of the base 63, and a longitudinal guide rail 65 is provided on the front. The long and short axis polishing slide assembly includes a first guide rail mounting plate 66 and a long and short axis polishing motor fixing plate 68. The back of the first guide rail mounting plate 66 is slidably connected to the longitudinal guide rail 65 via a slider 32, and the front is provided with a transverse guide rail 47. The transverse guide rail 47 is connected to the second guide rail mounting plate 67 via a slider 32. The back of the long and short axis polishing motor fixing plate 68 is connected to the second guide rail mounting plate 67, and the top is equipped with a long and short axis polishing motor 69. The output end of the long and short axis polishing motor 69 is provided with a motor V-belt pulley 50. The side of the second guide rail mounting plate 67 is connected to a cylinder 35 via a floating joint 43. The long and short shaft polishing brush assembly includes a long and short brush shaft seat 70, the back of which is connected to a second guide rail mounting plate 67. A brush shaft 71 is rotatably mounted inside the long and short brush shaft seat 70. A driven V-belt pulley 72 is provided at the end of the brush shaft 71 near the motor V-belt pulley 50, and a short shaft brush 74 and a long shaft brush 75 are mounted at the other end through a brush mounting seat 73. The motor V-belt pulley 50 and the driven V-belt pulley 72 are connected by a main and auxiliary shaft belt 76. Driven by the long and short shaft polishing motor 69, the short shaft brush 74 and the long shaft brush 75 are rotated to polish the long and short shafts of the crankshaft 15.

[0042] The multi-stage deburring machine for crankshafts provided by this utility model mainly includes four stages in its operation: feeding, lifting and conveying, multi-station processing, and unloading, as detailed below: I. Material Feeding Stage The crankshaft to be processed is conveyed to the feed inlet 4 via the support V block 9 of the feeding conveyor line 7. The conveyor chain drives the crankshaft 15 to move to the designated position and then stops.

[0043] II. Lifting and Transfer Stage 1. Lifting and picking up materials: The crossbeam 24 of the step lifting mechanism slides along the guide rail 40 under the drive of the servo motor 26 and enters the material conveying line 7 through the feed port 4. The lifting cylinder 23 lifts the crossbeam 24, so that the V-shaped support 25 lifts the crankshaft 15 and disengages from the support V block 9.

[0044] 2. Transfer to processing position: Servo motor 26 drives crossbeam 24 to carry crankshaft 15 back into the whole machine frame cover 1. Crankshaft 15 is fixed by the center assembly: the cylinder of the active center assembly 10 pushes the center 29 to hold the short shaft end of crankshaft 15, and the driven center assembly 11 holds the long shaft end, realizing the positioning and rotation of crankshaft 15 around the axis.

[0045] III. Multi-station processing stage Along the conveying direction, the components are sequentially processed through four sets of top-mounted assemblies and corresponding handling mechanisms to complete the graded processing. 1. Shoulder deburring (first station): The shoulder deburring mechanism 12 on the first active center assembly is activated. The dual servo power head drives the shoulder thrust brush 46 to rotate. At the same time, the cylinder pushes the support 41 to move the brush along the guide rail to deburr the shoulder of the crankshaft 15.

[0046] 2. Eccentric polishing (second and third stations): The two sets of eccentric polishing mechanisms 13 on the second and third active center components work respectively. The motor drives the eccentric shaft brush 62 to rotate through belt drive. The main shaft cylinder 48 pushes the mechanism to move along the transverse guide rail 47 to polish the eccentric part of the crankshaft 15.

[0047] 3. Polishing of long and short shafts (fourth station): The polishing mechanism 14 of the long and short shafts on the fourth active center assembly is in operation. The longitudinal cylinder 64 and the transverse cylinder adjust the position of the brushes. The polishing motor 69 of the long and short shafts drives the short shaft brush 74 and the long shaft brush 75 to rotate through the belt to polish the surface of the long and short shafts of the crankshaft 15.

[0048] IV. Material feeding stage After all processing is completed, the top component releases the crankshaft 15, and the crossbeam 24 of the step lifting mechanism moves the crankshaft 15 to the discharge port. The crankshaft 15 is then lowered by the lifting cylinder 23 and placed on the support V block 9 of the unloading conveyor line 8, and then conveyed to the next process by the chain.

[0049] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A multi-stage deburring machine for crankshafts, characterized in that, include: The machine frame is covered, with a feed inlet and a discharge outlet on each side. The step lifting mechanism is located inside the machine frame cover, with both ends extending to the feed inlet and the discharge outlet, respectively. The top components include multiple sets of relatively arranged active and driven top components, with the multiple sets of top components evenly distributed on both sides of the step lifting mechanism; The crankshaft processing assembly includes a shoulder deburring mechanism, an eccentric polishing mechanism, and a long and short shaft polishing mechanism; the crankshaft processing assembly is mounted on the active tip assembly and is used to process the crankshaft's shoulders, eccentricity, and long and short shafts; The conveyor lines include a loading conveyor line and a unloading conveyor line located outside the machine frame cover; the loading conveyor line and the unloading conveyor line include chains, on which multiple sets of symmetrically arranged support V-blocks are arranged to support the long and short shafts of the crankshaft. The loading conveyor line is located at the inlet and the unloading conveyor line is located at the outlet.

2. The crankshaft multi-stage deburring machine according to claim 1, characterized in that, There are four groups of active and passive centering components, arranged in the following order along the conveying direction: the first active centering component and the first passive centering component, the second active centering component and the second passive centering component, the third active centering component and the third passive centering component, and the fourth active centering component and the fourth passive centering component.

3. The crankshaft multi-stage deburring machine according to claim 2, characterized in that, There are two sets of eccentric polishing mechanisms; The first active center assembly is equipped with a shoulder deburring mechanism, the second active center assembly is equipped with a first set of eccentric polishing mechanisms, the third active center assembly is equipped with a second set of eccentric polishing mechanisms, and the fourth active center assembly is equipped with a long and short shaft polishing mechanism.

4. The crankshaft multi-stage deburring machine according to claim 1, characterized in that, The step lifting mechanism includes: a step support assembly, a step lifting assembly, and a lifting crossbeam assembly; The step support assembly includes: a secondary lifting base, with multiple linear bearings on the top of the secondary lifting base; a lifting guide shaft is installed inside the linear bearings; a synchronous shaft is installed at the bottom of the secondary lifting base through a bearing seat, and the synchronous shaft engages with the lifting guide shaft through gears. The step lifting assembly includes: a tooling lifting rod, the top of which is equipped with a guide rail, the bottom of which is connected to a lifting guide shaft, and a lifting cylinder is provided, which is used to lift the tooling lifting rod; The lifting beam assembly includes: a beam, with multiple V-shaped supports on the top of the beam to support the crankshaft, a guide rail connected to the bottom via a slider, and the side of the beam connected to the output gear of the servo motor.

5. The crankshaft multi-stage deburring machine according to claim 1, characterized in that, The active centering assembly includes: a first bearing housing assembly, a first slide assembly, a motor, and a cylinder; The first bearing housing assembly includes a bearing housing, a main shaft is provided inside the bearing housing, and a center is installed at the end of the main shaft to hold the short shaft end of the crankshaft. The first slide assembly includes a base plate, a slide rail on the base plate, a pad connected to the slide rail via a slider, and a bearing seat mounting base on the top of the pad, which is connected to the bearing seat. The motor is mounted on a bearing housing, and its output end is connected to the main shaft via a coupling; The cylinder is mounted on the side of the base plate and connected to the pad plate via a pusher.

6. The crankshaft multi-stage deburring machine according to claim 1, characterized in that, The driven center assembly includes: a second bearing housing assembly, a second slide assembly, and a cylinder; The second bearing housing assembly includes a bearing housing, a main shaft is provided inside the bearing housing, and a center is installed at the end of the main shaft to hold the long shaft end of the crankshaft. The second slide assembly includes a base plate, on which a slide rail is provided. The slide rail is slidably connected to a pad via a slider. A bearing seat mounting base is provided on the top of the pad, and the bearing seat mounting base is connected to the bearing seat. The cylinder is mounted on the side of the base plate and connected to the pad plate via a pusher.

7. The crankshaft multi-stage deburring machine according to claim 1, characterized in that, The shoulder deburring mechanism includes: a shoulder moving assembly and a planar deburring mechanism; The shoulder moving assembly includes: a base, a guide rail on the top of the base, and a support connected to the guide rail via a slider; a cylinder is connected to one side of the base, and the cylinder is connected to the support via a floating joint. The planar deburring mechanism includes: a dual servo power head side-mounted, the bottom of which is connected to a support, and a shoulder thrust brush mounted at the end via an elastic clamp.

8. The crankshaft multi-stage deburring machine according to claim 1, characterized in that, The eccentric polishing mechanism includes: an eccentric polishing base assembly, an eccentric polishing floating assembly, and an eccentric polishing spindle assembly; The eccentric polishing base assembly includes: a base, with a transverse guide rail on the front and a spindle cylinder mounted on the side; The eccentric polishing floating assembly includes: a motor mounting plate, on the top of which a motor is mounted, and a motor V-belt pulley connected to the motor output end; the back of the motor mounting plate is slidably connected to the transverse guide rail via a slider, and the side is connected to the main shaft cylinder via a cylinder connector; The eccentric polishing spindle assembly includes: a drive shaft, an intermediate shaft, and a main rotating shaft. Each shaft has a drive V-belt pulley, an intermediate V-belt pulley, and a drive V-belt pulley at its end; an eccentric shaft brush is installed at the other end of the main rotating shaft. The motor V-belt pulley, drive V-belt pulley, intermediate V-belt pulley, and drive V-belt pulley are connected by belts for transmission.

9. The crankshaft multi-stage deburring machine according to claim 1, characterized in that, The long and short axis polishing mechanism includes: a long and short axis polishing base assembly, a long and short axis polishing slide assembly, and a long and short axis polishing brush assembly; The long and short axis polishing base assembly includes: a base, a longitudinal cylinder mounted on the top of the base, and a longitudinal guide rail on the front; The long and short shaft polishing slide assembly includes: a first guide rail mounting plate and a long and short shaft polishing motor fixing plate. The back of the first guide rail mounting plate is slidably connected to the longitudinal guide rail, and the front is slidably connected to the second guide rail mounting plate. The back of the long and short shaft polishing motor fixing plate is connected to the second guide rail mounting plate, the top is equipped with a long and short shaft polishing motor, and the side is connected to a cylinder. The output end of the long and short shaft polishing motor is equipped with a motor V-belt pulley. The long and short shaft polishing brush assembly includes: a long and short brush shaft seat with a brush shaft inside, a second guide rail mounting plate connected to the back of the long and short brush shaft seat, a driven V-belt pulley at the end of the brush shaft near the motor V-belt pulley, and short and long shaft brushes installed at the other end; The motor V-belt pulley and the driven V-belt pulley are connected by a main and auxiliary shaft belt for transmission.

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