An apparatus and method for treating the inner surface of an oil jacket

Abstract

This invention relates to the field of oil fitting sleeve processing technology, and discloses an oil fitting sleeve inner surface treatment device, including a housing, a chuck, and a gantry frame. A slot is laterally formed on one side of the chuck, and a positioning plate is engaged within the slot. One side of the positioning plate is detachably connected to the chuck by bolts. The other side of the positioning plate extends out of the slot and has a sliding groove. Two positioning components are movably connected within the sliding groove. A positioning slot is provided at the lower corner of the positioning plate, and the horizontal side of the positioning slot is on the same plane as the center of the turntable. A slider is slidably connected within the sliding groove, and a square frame is fixedly connected to one side of the slider. A grinding mechanism is installed within the square frame. This oil fitting sleeve inner surface treatment device and method can quickly install the oil fitting sleeve blank when treating the inner surface of the oil fitting sleeve, and automatically center it after fixing. It can also assist in lifting the oil fitting sleeve blank, making it convenient for technicians to use.

Description

Technical Field

[0001] This invention relates to the field of oil fitting sleeve processing technology, specifically to an oil fitting sleeve inner surface treatment device and method. Background Technology

[0002] Due to manufacturing and assembly errors, as well as changes in operating conditions, contact between the spindle and the oil bushing persists for a short period, causing wear between the oil bushing and the spindle. To combat wear, the surface of the spindle section that mates with the oil bushing is plated with hard chrome to improve wear resistance. The part of the oil bushing that directly contacts the spindle is made of a material with good wear resistance. Commonly used wear-resistant materials include tin-based bearing alloys (Babbitt metal), lead-based bearing alloys, aluminum-based bearing alloys, tin bronze, lead bronze, and cast iron. Therefore, the oil bushing is generally designed as a bimetallic composite bushing consisting of an inner and an outer sleeve. The inner sleeve is made of alloy copper, and the outer sleeve is generally made of high-quality carbon structural steel. The methods for joining the alloy copper sleeve and the steel sleeve include inlay, vacuum hot pressing, powder sintering, welding and sintering, and double-liquid centrifugal casting. After welding and sintering, the standard inner diameter of the oil distribution sleeve is machined by boring. Moreover, the metal bonding force between the inner and outer sleeves after sintering has obvious advantages over the inlay method, vacuum hot pressing method, powder sintering method, and double liquid centrifugal casting method. During welding and sintering, a robotic arm is usually used for welding. The operation of the robotic arm is controlled by a preset program. Therefore, the levelness of the oil distribution sleeve after fixing, as well as the concentricity of the oil distribution position adjusted by the rotation of the robotic arm, will affect the quality of the alloy copper layer after welding and sintering.

[0003] Currently, due to the large weight of the outer sleeve, it is difficult to adjust the fixed posture of the outer sleeve blank, making it difficult to ensure that the outer sleeve blank and the auxiliary device rotate concentrically. Moreover, in order to avoid the outer sleeve blank sticking to the turntable during welding, the inner surface of the oil distribution sleeve needs to be welded in sections, requiring multiple loading, unloading and adjustment of the outer sleeve blank, which is inconvenient for technicians. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides an apparatus and method for treating the inner surface of an oil distribution sleeve, which solves the problems of difficulty in adjusting the fixed posture of the outer sleeve blank, the need to complete the welding treatment of the inner surface of the oil distribution sleeve in sections, and the need for multiple loading, unloading and adjustment of the outer sleeve blank.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: an inner surface treatment device for an oil fitting sleeve, comprising a chassis, a chuck, and a gantry frame. A slot is laterally formed on one side of the chuck, and a positioning plate is engaged in the slot. One side of the positioning plate is detachably connected to the chuck by bolts. A sliding groove is formed on the other side of the positioning plate extending out of the slot. Two positioning components are movably connected in the sliding groove. A positioning groove is provided at the lower corner of the positioning plate, and the horizontal side of the positioning groove is located on the same plane as the center of the turntable.

[0008] A slider is slidably connected inside the groove, and a square frame is fixedly connected to one side of the slider. A grinding mechanism is installed inside the square frame.

[0009] A connecting frame is fixedly connected to the side of the chuck away from the slot. A fixing mechanism that can fix oil sleeve workpieces with different structures is installed in the connecting frame. The fixing mechanism is provided with two sets of fixing components. The fixing components are composed of two support arms that are on the same horizontal plane and parallel to each other.

[0010] A geared motor is fixedly connected to one side of the gantry frame. A main shaft coaxial with the chuck is rotatably connected to the upper end of the crossbeam of the gantry frame through a bearing seat. One end of the main shaft is fixedly connected to the output end of the geared motor, and the other end of the main shaft is fixedly connected to one side of the connecting frame.

[0011] The upper end of the chassis is connected to the two vertical parts of the gantry frame through a rectangular hole. A lifting mechanism is installed inside the chassis. The lifting mechanism drives the gantry frame to move, so that the fixing mechanism on the turntable lifts the oil distribution sleeve.

[0012] The chassis is fixedly connected to a first bracket and a second bracket on opposite sides. Two inclined shells are symmetrically fixedly connected to one side of the first bracket. Multiple rollers are rotatably connected inside the two shells via a rotating shaft.

[0013] Preferably, the fixing mechanism includes two bidirectional lead screws, two fixing plates are fixedly connected to one side of the chuck, and both fixing plates are rotatably connected to the end of the bidirectional lead screws through ball bearings. Two threaded sleeves are threadedly connected to the rod wall of the bidirectional lead screws. A strip-shaped through hole is opened on one side of the turntable, and one end of the support arm passes through the strip-shaped through hole and is fixedly connected to one side of the threaded sleeve.

[0014] A worm gear is rotatably connected inside the connecting frame via rolling bearings. Two worm wheels mesh on the wall of the worm gear, and the two worm wheels are respectively fixedly connected to the middle of the wall of two bidirectional lead screws. A first motor is fixedly connected to one side of the connecting frame, and the output end of the first motor is fixedly connected to one end of the worm gear.

[0015] Preferably, a rectangular sleeve is fixedly connected to the side wall of the support arm, and a strip-shaped countersunk hole that mates with the rectangular sleeve is opened on one side of the chuck. Two rectangular blocks are slidably connected to the other side of the chuck. The two rectangular blocks are respectively fixed to the side walls of the two support arms. U-shaped covers are fixedly connected to both ends of the connecting frame. One end of each of the two U-shaped covers is fixedly connected to one side of the chuck. The two edges of the U-shaped covers form a channel with one side of the chuck through notches. The rectangular blocks are slidably connected in the channel.

[0016] Preferably, the lifting mechanism includes two threaded rods, each with a nut threaded onto its wall. The nuts are fixed to one side of the vertical part of the gantry frame. Both ends of the threaded rods are vertically rotatably connected to the housing via needle roller bearings. A horizontal shaft is rotatably connected to the housing via bearing seats. Both ends of the horizontal shaft are fixedly connected to first bevel gears. Each of the two first bevel gears meshes with a second bevel gear, which is coaxially fixed to the wall of the threaded rod.

[0017] A first gear is fixedly connected to the shaft wall of the horizontal shaft, and a second gear meshes with one side of the first gear. A second motor is fixedly connected inside the chassis via a support, and the output end of the second motor is coaxially fixedly connected to one side of the second gear.

[0018] Preferably, the chassis has two crossbars, one side of which is slidably connected to the inner wall of the chassis. Both crossbars are fixed between two vertical parts of the gantry. A mounting plate is provided on one side of the chassis, and two fixing parts are provided on one side of the mounting plate. Two slotted holes are provided on one side of the chassis. The fixing parts pass through the slotted holes and are fixedly connected to the wall of one of the crossbars. Two half-shafts are symmetrically fixedly connected to one side of the mounting plate. Support wheels are rotatably connected to the shaft walls of the two half-shafts, and the support wheels contact the edge of the chuck.

[0019] Preferably, the grinding mechanism includes a drive shaft, a sandpaper belt is fixed on the shaft wall of the drive shaft, a mounting block is fixedly connected to the lower end of the slider, one side of the mounting block contacts the side wall of the chuck, an ear seat is fixedly connected to one side of the frame, and both ends of the drive shaft are rotatably connected between the mounting block and the ear seat through sealed bearings.

[0020] A third motor is fixedly connected inside the frame. A protective cover is fixedly connected to one side of the frame. A synchronous belt is installed inside the protective cover. Two synchronous pulleys are installed inside the synchronous belt. One of the synchronous pulleys is fixedly connected to the output end of the third motor, and the other synchronous pulley is fixedly connected to one end of the transmission shaft. A circular hole is opened on one side of the frame. An electric push rod is fitted into the circular hole. The telescopic end of the electric push rod is fixedly connected to the inner side of the frame. The side wall of the electric push rod is fixed to one side of the positioning plate.

[0021] Preferably, one end of the fixing component is provided with a support plate, one end of the support plate is fixedly connected with a thrust plate, and the other end of the support plate is symmetrically fixedly connected with two slide rails. Each of the two supporting arms of the fixing component has a slide rail that mates with the slide rail on one side. Both ends of the support plate are fixedly connected with sleeves, and each of the two sleeves is fitted with a long bolt. One end of the supporting arm is provided with a threaded hole that mates with the long bolt.

[0022] Preferably, the positioning component includes a first positioning block and a second positioning block. The first positioning block is slidably sleeved in a groove. The second positioning block contacts one side of a positioning plate and is fitted with two first screws through a round opening. Both first screws pass through the round opening and are threadedly connected to one side of the first positioning block. Two shaft pins are fixedly connected to one side of the second positioning block. A pressure plate is provided between the two shaft pins. The side wall of the pressure plate is rotatably connected to the shaft pins through a blind hole. A limit groove is provided at the lower end of the pressure plate. A brake plate is fixedly connected to the upper end of the pressure plate. A second screw is threadedly connected to one side of the brake plate. One end of the second screw contacts the upper end of the positioning plate.

[0023] Preferably, two fixing rods and two positioning pins are fixedly connected to one side of the limiting plate. The slot has multiple through holes and two positioning holes. The positioning pins are inserted into the positioning holes. Two sleeves are fixedly connected to one side of the chuck. The sidewalls of the sleeves are threaded to bolts through threaded holes. The sleeves have protrusions. The positioning pins pass through the through holes and are inserted into the sleeves, and have a plane that mates with the protrusions.

[0024] The present invention also provides a method for treating the inner surface of the oil fitting sleeve, comprising the following steps:

[0025] Step 1: Start the first motor to drive the fixing mechanism to the maximum clamping range, start the second motor to drive the lifting mechanism to make the chuck and fixing mechanism reach the lower dead point, place the oil sleeve workpiece on the idler roller and push it to contact one side of the rectangular sleeve, then start the second motor to drive the lifting mechanism to reset, and then start the first motor to reset and retract the arm of the fixing mechanism until the upper end of the oil sleeve contacts the positioning groove.

[0026] Step 2: Assemble the support plate at the outrigger and tighten it with long bolts, then use the thrust plate to press the oil bushing.

[0027] Step 3: Select an aluminum bronze welding wire of appropriate diameter and adjust the current and wire feeding speed of the welding machine. Use a robotic arm to operate the welding gun head to deposit an aluminum bronze layer in the oil sleeve. Select an appropriate welding process through the preset program in the robotic arm controller. Control the thickness of the aluminum bronze weld layer by controlling the speed of the welding gun head with the robotic arm and leave a machining allowance.

[0028] Step 4: After welding, use a grinding machine to rough grind the aluminum bronze weld overlay until there are no obvious uneven surfaces on the surface of the aluminum bronze weld overlay. Then reverse the operation from step 1 to remove the oil sleeve workpiece. After that, use an ultrasonic flaw detector to perform flaw detection and record the defect location and defect depth.

[0029] Step 5: Manually repair the defects in the aluminum bronze. After repair, the workpiece is sent to the finishing station for turning, and finally the inner surface of the oil sleeve is treated.

[0030] (III) Beneficial Effects

[0031] Compared with the prior art, the present invention provides an apparatus and method for treating the inner surface of an oil fitting sleeve, which has the following beneficial effects:

[0032] 1. When using this invention, the first motor is started to drive the fixing mechanism to the maximum clamping range, that is, the support arm is away from the center of the chuck. The second motor is started to drive the lifting mechanism to make the chuck and fixing mechanism reach the lower stop point. At this time, the lowest support arm is below the first bracket. The oil sleeve workpiece is placed on the roller and pushed to contact one side of the rectangular sleeve. Then the second motor is started to drive the lifting mechanism to reset. Then the first motor is started to reset and retract the support arm of the fixing mechanism until the upper end of the oil sleeve contacts the positioning groove. At this time, the support arm pushes the oil sleeve to contact the positioning groove. Then the positioning component is pushed to make the limiting groove on the pressure plate engage with the edge of the oil sleeve. The first screw is tightened to lock the first positioning block and the second positioning block to fix the positioning component. Finally, the second screw is turned to push the brake plate to make the pressure plate swing around the shaft pin to press the oil sleeve. In this way, the split oil sleeve can be clamped and fixed.

[0033] 2. The fixing mechanism provided in this invention, when in use, starts the first motor to drive the second gear to rotate the worm gear. The rotation of the worm gear drives the worm wheel to rotate the two bidirectional lead screws. When the bidirectional lead screws rotate, they drive the threaded sleeve to move the support arm. When the support arm moves, it can lift the split oil distribution sleeve or clamp the integral oil distribution sleeve. In this way, the oil distribution sleeve workpiece can be quickly installed when processing the inner surface of the oil distribution sleeve. After fixing, it can automatically center itself, which is convenient for technicians to use.

[0034] 3. The lifting mechanism provided in this invention, when in use, starts the second motor to drive the second gear to rotate the first gear, the rotation of the first gear drives the horizontal shaft to rotate the first bevel gear, the rotation of the first bevel gear drives the second bevel gear to rotate the threaded rod, the rotation of the threaded rod drives the nut to move the gantry frame, the movement of the gantry frame drives the main shaft to move the connecting frame and the chuck, thus realizing the lifting of the oil sleeve by the fixed mechanism. When the gantry frame moves, it drives the horizontal bar mounting plate to move, the movement of the mounting plate drives the half shaft to move the support wheel synchronously, and the support wheel provides auxiliary support for the chuck, reducing the working intensity of the main shaft and increasing the load capacity of the chuck.

[0035] 4. The grinding mechanism provided in this invention, when in use, activates the electric push rod to push the square frame to move the drive shaft. When the drive shaft moves, the sandpaper belt wrapped around its surface contacts the welding surface of the inner surface of the oil sleeve. At this time, the third motor is activated to drive one of the synchronous pulleys to rotate, and the synchronous belt drives the other synchronous pulley to rotate the drive shaft. When the drive shaft rotates, it drives the sandpaper belt to rotate, thus performing rough grinding on the welding surface. This allows for rapid leveling of the welding surface, facilitating flaw detection using an ultrasonic flaw detector. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of an oil distribution sleeve inner surface treatment device proposed in this invention. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the structure of an oil distribution sleeve inner surface treatment device proposed in this invention. Figure 2 ;

[0038] Figure 3 This is a schematic diagram of the structure of an oil distribution sleeve inner surface treatment device proposed in this invention. Figure 3 ;

[0039] Figure 4 This is a schematic diagram of the structure of an oil distribution sleeve inner surface treatment device proposed in this invention. Figure 4 ;

[0040] Figure 5 The present invention provides an inner surface treatment device for an oil distribution sleeve. Figure 2 The front view;

[0041] Figure 6 The present invention provides an inner surface treatment device for an oil distribution sleeve. Figure 1 Rear view;

[0042] Figure 7 This is a schematic diagram of the mechanical and geared motor structure in the oil distribution sleeve inner surface treatment device proposed in this invention;

[0043] Figure 8 The present invention provides an inner surface treatment device for an oil distribution sleeve. Figure 7 Cross-section Figure 1 ;

[0044] Figure 9 The present invention provides an inner surface treatment device for an oil distribution sleeve. Figure 7 Cross-section Figure 2 ;

[0045] Figure 10 This is a schematic diagram of the fixing mechanism in the inner surface treatment device for the oil distribution sleeve proposed in this invention;

[0046] Figure 11 This is a schematic diagram of the grinding mechanism in the inner surface treatment device for the oil distribution sleeve proposed in this invention;

[0047] Figure 12 This is a schematic diagram of the positioning component in the inner surface treatment device for the oil distribution sleeve proposed in this invention;

[0048] Figure 13 This is a schematic diagram of the chuck and support arm in the inner surface treatment device for the oil distribution sleeve proposed in this invention. Figure 1 ;

[0049] Figure 14 This is a schematic diagram of the chuck and support arm in the inner surface treatment device for the oil distribution sleeve proposed in this invention. Figure 2 ;

[0050] Figure 15 This is a schematic diagram of the positioning plate and positioning assembly in the oil distribution sleeve inner surface treatment device proposed in this invention;

[0051] Figure 16 This is a schematic diagram of the chuck, positioning plate, and slider structure in an oil distribution sleeve inner surface treatment device proposed in this invention.

[0052] In the diagram: 1. Chassis; 2. Chuck; 3. Half-shaft; 4. Support wheel; 5. Idler roller; 6. Housing; 7. Support arm; 8. Thrust plate; 9. Rectangular sleeve; 10. Square frame; 11. Electric push rod; 12. Positioning plate; 13. Slide groove; 14. Brake plate; 15. U-shaped cover; 16. Gear motor; 17. Gantry frame; 18. First motor; 19. Connecting frame; 20. Sleeve; 21. Drive shaft; 22. Main shaft; 23. Mounting plate; 24. Threaded rod; 25. Nut; 26. Crossbar; 27. Second motor; 28. First cone 29. Gear; 30. Second bevel gear; 31. First gear; 32. Second gear; 33. Horizontal shaft; 34. Threaded sleeve; 35. Rectangular block; 36. Double-acting lead screw; 37. Worm gear; 38. Sleeve; 39. Slide rail; 40. Long rod bolt; 41. Third motor; 42. Synchronous belt; 43. Synchronous pulley; 44. Slider; 45. First positioning block; 46. Second positioning block; 47. Pressure plate; 48. Slot; 49. Positioning groove; 50. Limiting groove; 51. Positioning post; 52. Fixing rod; 53. Mounting block. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] Example 1: Refer to Appendix Figure 1-16 A surface treatment device for an oil fitting sleeve includes a housing 1, a chuck 2, and a gantry 17. A slot 48 is laterally formed on one side of the chuck 2, and a positioning plate 12 is engaged within the slot 48. One side of the positioning plate 12 is detachably connected to the chuck 2 by bolts. Two fixing rods 52 and two positioning pins 51 are fixedly connected to one side of a limiting plate. Multiple through holes and two positioning holes are formed within the slot 48. The positioning pins 51 are inserted into the positioning holes. Two sleeves 20 are fixedly connected to one side of the chuck 2. The sidewalls of the sleeves 20 are threadedly connected to bolts through threaded holes. A protrusion is provided inside the sleeve 20. The positioning pins 51 pass through the through holes and are inserted into the sleeves 20, with a plane that mates with the protrusion. A sliding groove 13 extends from the other side of the positioning plate 12 to the outside of the slot 48. Two positioning components are movably connected within the sliding groove 13. Each positioning component includes a first positioning block 45 and a second positioning block 46. 45 is slidably sleeved in the slide groove 13. The second positioning block 46 contacts one side of the positioning plate 12 and is sleeved with two first screws through the round opening. Both first screws pass through the round opening and are threadedly connected to one side of the first positioning block 45. Two shaft pins are fixedly connected to one side of the second positioning block 46. A pressure plate 47 is provided between the two shaft pins. The side wall of the pressure plate 47 is rotatably connected to the shaft pins through a blind hole. A limit groove 50 is opened at the lower end of the pressure plate 47. A brake plate 14 is fixedly connected to the upper end of the pressure plate 47. A second screw is connected to one side of the brake plate 14 through a threaded hole. One end of the second screw contacts the upper end of the positioning plate 12. A positioning groove 49 is provided at the lower corner of the positioning plate 12. The horizontal side of the positioning groove 49 is located on the same plane as the center of the turntable. A slider 44 is slidably connected in the slide groove 13. A square frame 10 is fixedly connected to one side of the slider 44. A grinding mechanism is installed in the square frame 10.

[0055] A connecting frame 19 is fixedly connected to the side of the chuck 2 away from the slot 48. A fixing mechanism for fixing oil sleeve workpieces with different structures is installed in the connecting frame 19. The fixing mechanism is provided with two sets of fixing components. The fixing components are composed of two parallel support arms 7 on the same horizontal plane. A support plate is provided at one end of the fixing components. A thrust plate 8 is fixedly connected to one end of the support plate. Two slide rails 39 are symmetrically fixedly connected to the other end of the support plate. A slide rail that cooperates with the slide rail 39 is opened on the opposite side of the two support arms 7 of the fixing components. A sleeve 38 is fixedly connected to both ends of the support plate. A long rod bolt 40 is sleeved in both sleeves 38. A threaded hole that cooperates with the long rod bolt 40 is opened at one end of the support arm 7.

[0056] A geared motor 16 is fixedly connected to one side of the gantry frame 17. The upper end of the crossbeam of the gantry frame 17 is rotatably connected to a main shaft 22 coaxial with the chuck 2 through a bearing seat. One end of the main shaft 22 is fixedly connected to the output end of the geared motor 16, and the other end of the main shaft 22 is fixedly connected to one side of the connecting frame 19. The upper end of the housing 1 is sleeved with the two vertical parts of the gantry frame 17 through a rectangular hole. A lifting mechanism is installed inside the housing 1. The lifting mechanism drives the gantry frame 17 to move, so that the fixed mechanism on the turntable lifts the oil distribution sleeve. The first bracket and the second bracket are fixedly connected to opposite sides of the housing 1, respectively. Two inclined housings 6 are symmetrically fixedly connected to one side of the first bracket. Multiple rollers 5 are rotatably connected inside the two housings 6 through a rotating shaft.

[0057] In use, the first motor 18 is activated to drive the fixing mechanism to its maximum clamping range, i.e., the support arm 7 is away from the center of the chuck 2. The second motor 27 is activated to drive the lifting mechanism so that the chuck 2 and the fixing mechanism are at their lower stop. At this time, the lowest support arm 7 is below the first bracket. The oil sleeve workpiece is placed on the roller 5 and pushed until it contacts one side of the rectangular sleeve 9. Then, the second motor 27 is activated to drive the lifting mechanism to reset. Then, the first motor 18 is activated to reset and retract the support arm 7 of the fixing mechanism until the upper end of the oil sleeve contacts the positioning groove 49. At this time, the support arm 7 pushes the oil sleeve to contact the positioning groove 49. Then, the positioning component is pushed so that the limiting groove 50 on the pressure plate 47 engages with the edge of the oil sleeve (e.g., Figure 2 As shown, tighten the first screw to lock the first positioning block 45 and the second positioning block 46 to fix the positioning component. Finally, tighten the second screw to push the brake plate 14 so that the pressure plate 47 swings around the shaft pin to press the oil distribution sleeve. In this way, the split oil distribution sleeve can be clamped and fixed.

[0058] When clamping an integral oil distribution sleeve (such as...) Figure 3As shown), at this time, the two sets of fixing components clamp the oil distribution sleeve together, and the edge of the oil distribution sleeve contacts one side of the positioning plate, so that the oil distribution sleeve does not contact the chuck 2, avoiding adhesion during welding. After assembling the positioning component at the support arm 7, insert the slide rail 39 into the slide, and then use the long rod bolt 40 to insert the sleeve 38 to connect and lock it with the support arm 7. In this way, the thrust plate 8 can be used to press the oil distribution sleeve.

[0059] After assembly, the main shaft 22 is driven by the geared motor to rotate the connecting frame 19. When the connecting frame 19 rotates, it drives the chuck 2 to rotate the oil distribution sleeve. In this way, the welding gun head can be operated by the robotic arm to perform welding on the oil distribution sleeve.

[0060] Example 2: The difference from Example 1 is that;

[0061] See attached document Figure 1 , Figure 6 and Figure 10 The fixing mechanism includes two bidirectional lead screws 35. Two fixing plates are fixedly connected to one side of the chuck 2. Both fixing plates are rotatably connected to the ends of the bidirectional lead screws 35 through ball bearings. Two threaded sleeves 33 are threadedly connected to the rod wall of the bidirectional lead screws 35. A strip-shaped through hole is opened on one side of the turntable. One end of the support arm 7 passes through the strip-shaped through hole and is fixedly connected to one side of the threaded sleeve 33. A worm gear 36 is rotatably connected to the connecting frame 19 through rolling bearings. Two worm wheels 37 mesh on the rod wall of the worm gear 36. The two worm wheels 37 are fixedly connected to the middle of the rod wall of the two bidirectional lead screws 35 respectively. A first motor 18 is fixedly connected to one side of the connecting frame 19. The output end of the first motor 18 is fixedly connected to one end of the worm gear 36.

[0062] A rectangular sleeve 9 is fixedly connected to the side wall of the support arm 7. A strip-shaped countersunk hole that matches the rectangular sleeve 9 is opened on one side of the chuck 2. Two rectangular blocks 34 are slidably connected to the other side of the chuck 2. The two rectangular blocks 34 are fixedly fixed to the side walls of the two support arms 7 respectively. U-shaped covers 15 are fixedly connected to both ends of the connecting frame 19. One end of each of the two U-shaped covers 15 is fixedly connected to one side of the chuck 2. The two edges of the U-shaped covers 15 form a channel with one side of the chuck 2 through notches. The rectangular blocks 34 are slidably connected in the channel.

[0063] The fixing mechanism provided in this invention, when in use, starts the first motor 18 to drive the second gear 31 to rotate the worm 36. The rotation of the worm 36 drives the worm wheel 37 to rotate the two bidirectional lead screws 35. When the bidirectional lead screws 35 rotate, they drive the threaded sleeve 33 to move the support arm 7. When the support arm 7 moves, it can lift the split oil distribution sleeve or clamp the integral oil distribution sleeve. In this way, the oil distribution sleeve workpiece can be quickly installed when processing the inner surface of the oil distribution sleeve. After fixing, it can automatically center itself, which is convenient for technicians to use.

[0064] Example 3: The difference from Example 1 is that;

[0065] See attached document Figure 7-9 The lifting mechanism includes two threaded rods 24, each with a nut 25 threaded to its wall. The nut 25 is fixed to one side of the vertical part of the gantry frame 17. Both ends of the threaded rods 24 are vertically rotatably connected to the housing 1 via needle roller bearings. A horizontal shaft 32 is rotatably connected to the housing 1 via bearing seats. Both ends of the horizontal shaft 32 are fixedly connected to first bevel gears 28. Both first bevel gears 28 mesh with second bevel gears 29. The second bevel gears 29 are coaxially fixed to the wall of the threaded rods 24. A first gear 30 is fixedly connected to the shaft wall of the horizontal shaft 32. A second gear 31 meshes with one side of the first gear 30. A second motor 27 is fixedly connected to the housing 1 via a support. The output end of the second motor 27 is coaxially fixedly connected to one side of the second gear 31.

[0066] The chassis 1 is equipped with two crossbars 26, and one side of the crossbars 26 is slidably connected to the inner wall of the chassis 1. Both crossbars 26 are fixed between the two vertical parts of the gantry frame 17. A mounting plate 23 is provided on one side of the chassis 1. Two fixing parts are provided on one side of the mounting plate 23. Two strip holes are provided on one side of the chassis 1. The fixing parts pass through the strip holes and are fixedly connected to the bar wall of one of the crossbars 26. Two half shafts 3 are symmetrically fixedly connected on one side of the mounting plate 23. Support wheels 4 are rotatably connected to the shaft walls of the two half shafts 3. The support wheels 4 are in contact with the edge of the chuck 2.

[0067] The lifting mechanism of this invention, when in use, starts the second motor 27 to drive the second gear 31 to rotate the first gear 30. The rotation of the first gear 30 drives the horizontal shaft 32 to rotate the first bevel gear 28. The rotation of the first bevel gear 28 drives the second bevel gear 29 to rotate the threaded rod 24. When the threaded rod 24 rotates, it drives the nut 25 to move the gantry frame 17. When the gantry frame 17 moves, it drives the main shaft 22 to move the connecting frame 19 and the chuck 2. In this way, the fixed mechanism can lift the oil sleeve. When the gantry frame 17 moves, it drives the horizontal bar 26 and the mounting plate 23 to move. When the mounting plate 23 moves, it drives the half shaft 3 to move the support wheel 4 synchronously. The support wheel 4 provides auxiliary support for the chuck 2, reducing the working intensity of the main shaft 22 and increasing the load capacity of the chuck 2.

[0068] Example 4: The difference from Example 1 is that;

[0069] See attached document Figure 1 , Figure 2 and Figure 11The grinding mechanism includes a drive shaft 21, with a sandpaper belt fixed to the shaft wall of the drive shaft 21. A mounting block 53 is fixedly connected to the lower end of the slider 44, with one side of the mounting block 53 contacting the side wall of the chuck 2. An ear seat is fixedly connected to one side of the frame 10. Both ends of the drive shaft 21 are rotatably connected between the mounting block 53 and the ear seat via sealed bearings. A third motor 41 is fixedly connected inside the frame 10. A protective cover is fixedly connected to one side of the frame 10, and a synchronous belt 42 is installed inside the protective cover. Two synchronous pulleys 43 are installed inside the synchronous belt 42. One synchronous pulley 43 is fixedly connected to the output end of the third motor 41, and the other synchronous pulley 43 is fixedly connected to one end of the drive shaft 21. A circular hole is opened on one side of the frame 10, and an electric push rod 11 is fitted into the circular hole. The telescopic end of the electric push rod 11 is fixedly connected to the inner side of the frame 10, and the side wall of the electric push rod 11 is fixed to one side of the positioning plate 12.

[0070] The grinding mechanism provided in this invention, when in use, activates the electric push rod 11 to push the square frame 10 to move the transmission shaft 21. When the transmission shaft 21 moves, the sandpaper belt wrapped around its surface contacts the welding surface of the inner surface of the oil fitting sleeve. At this time, the third motor 41 is activated to drive one of the synchronous pulleys 43 to rotate, and the synchronous belt 42 drives the other synchronous pulley 43 to rotate the transmission shaft 21. When the transmission shaft 21 rotates, it drives the sandpaper belt to rotate, thus performing rough grinding on the welding surface. This allows for rapid leveling of the welding surface, facilitating flaw detection using an ultrasonic flaw detector.

[0071] Example 5: The present invention also provides a method for treating the inner surface of the oil fitting sleeve, the steps of which are as follows:

[0072] Step 1: Start the first motor 18 to drive the fixing mechanism to the maximum clamping range, start the second motor 27 to drive the lifting mechanism to make the chuck 2 and the fixing mechanism at the lower dead point, place the oil sleeve workpiece on the roller 5 and push it to contact one side of the rectangular sleeve 9, then start the second motor 27 to drive the lifting mechanism to reset, and then start the first motor 18 to reset and retract the support arm 7 of the fixing mechanism until the upper end of the oil sleeve contacts the positioning groove 49. At this time, the oil sleeve and the chuck 2 are coaxial. When welding, first rotate the split oil sleeve 90° so that its open end is in the vertical direction, so that the welding torch head is at the lowest point during welding to ensure the flatness of the welding surface. Drive the main shaft 22 through the reduction motor 16 to make the chuck 2 rotate intermittently at low speed.

[0073] The second step is to assemble the support plate at the support arm 7 and lock it with the long rod bolt 40. Use the thrust plate 8 to press the oil sleeve. The top of the thrust plate 8 is lower than the inner surface of the oil sleeve. The support plate, sleeve 38 and long rod bolt 40 cooperate to ensure sufficient stability at one end of the two support arms 7.

[0074] The third step is to select an aluminum bronze welding wire of appropriate diameter and adjust the current and wire feeding speed of the welding machine. The robotic arm is used to operate the welding gun head to deposit an aluminum bronze layer in the oil sleeve. The appropriate welding process is selected through the preset program in the robotic arm controller. The thickness of the aluminum bronze weld layer is controlled by the speed of the welding gun head controlled by the robotic arm, and a machining allowance is reserved.

[0075] Step 4: After welding, use a grinding machine to rough grind the aluminum bronze weld overlay until there are no obvious uneven surfaces on the surface of the aluminum bronze weld overlay. Then reverse the operation from step 1 to remove the oil sleeve workpiece. After that, use an ultrasonic flaw detector to detect flaws and record the location and depth of defects.

[0076] Step 5: The defects in the aluminum bronze are repaired manually. After the repair is completed, the workpiece is sent to the finishing station for turning. Finally, the inner surface of the oil sleeve is treated, and the alloy bonding force after treatment is monitored. The monitoring results are as follows.

[0077] Table 1 shows the alloy layer thickness at 2 mm.

[0078]

[0079]

[0080] The fracture surfaces of samples 1-8 in the table above all break in the alloy layer, without any debonding, and the fracture surfaces are fluffy.

[0081] Table 2 shows the alloy layer thickness at 5mm.

[0082]

[0083] The fracture surfaces of samples 1-8 in the table above all break in the alloy layer, without any debonding, and the fracture surfaces are fluffy.

[0084] Table 3 shows the alloy layer thickness at 2 mm.

[0085]

[0086]

[0087] The fracture surfaces of samples 1-8 in the table above all break in the alloy layer, without any debonding, and the fracture surfaces are fluffy.

[0088] Table 4 shows the alloy layer thickness at 5mm.

[0089]

[0090] The fracture surfaces of samples 1-8 in the table above all fractured within the alloy layer, without any debonding, and the fracture surfaces appeared fuzzy. All the above experiments were conducted at room temperature of 22 degrees Celsius, the monitoring standard was GB / T1174, and the testing equipment was a UTM5305 microcomputer-controlled electronic universal testing machine.

[0091] Analysis of the test results shows that the aluminum bronze weld layer formed by overlay welding on the inner surface of the oil fitting sleeve has higher strength and is more wear-resistant than cast Babbitt alloy.

[0092] It should be noted that the term "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0093] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for treating the inner surface of an oil jacket, comprising a housing (1), a chuck (2), and a gantry (17), characterized in that: A slot (48) is laterally formed on one side of the chuck (2). A positioning plate (12) is engaged in the slot (48). One side of the positioning plate (12) is detachably connected to the chuck (2) by bolts. The other side of the positioning plate (12) extends to the outside of the slot (48) and has a sliding groove (13). Two positioning components are movably connected in the sliding groove (13). The positioning components include a first positioning block (45) and a second positioning block (46). The first positioning block (45) is slidably fitted in the sliding groove (13). The second positioning block (46) contacts one side of the positioning plate (12) and is fitted with two first screws through a round opening. Both first screws pass through the round opening and are engaged with the first positioning block (45). A positioning block (45) is threaded on one side, and two shaft pins are fixedly connected on one side of the second positioning block (46). A pressure plate (47) is provided between the two shaft pins. The side wall of the pressure plate (47) is rotatably connected to the shaft pins through a blind hole. A limit groove (50) is opened at the lower end of the pressure plate (47). A brake plate (14) is fixedly connected at the upper end of the pressure plate (47). A second screw is threadedly connected to one side of the brake plate (14) through a threaded hole. One end of the second screw contacts the upper end of the positioning plate (12). A positioning groove (49) is provided at the lower corner of the positioning plate (12). The horizontal side of the positioning groove (49) is located on the same plane as the center of the turntable. A slider (44) is slidably connected in the groove (13), and a square frame (10) is fixedly connected to one side of the slider (44). A grinding mechanism is installed in the square frame (10). A connecting frame (19) is fixedly connected to the side of the chuck (2) away from the slot (48). A fixing mechanism for fixing oil sleeve workpieces with different structures is installed in the connecting frame (19). The fixing mechanism is provided with two sets of fixing components. The fixing components are composed of two support arms (7) that are on the same horizontal plane and parallel to each other. The fixing mechanism includes two double-acting screws (35). Two fixing plates are fixedly connected to one side of the chuck (2). Both fixing plates are rotatably connected to the end of the double-acting screw (35) through ball bearings. Two threaded sleeves (33) are threadedly connected to the rod wall of the double-acting screw (35). A strip-shaped through hole is opened on one side of the turntable. One end of the support arm (7) passes through the strip-shaped through hole and is fixedly connected to one side of the threaded sleeve (33). The connecting frame (19) is rotatably connected to a worm (36) via a rolling bearing. Two worm wheels (37) mesh on the wall of the worm (36). The two worm wheels (37) are fixedly connected to the middle of the wall of two bidirectional lead screws (35). A first motor (18) is fixedly connected to one side of the connecting frame (19). The output end of the first motor (18) is fixedly connected to one end of the worm (36). A geared motor (16) is fixedly connected to one side of the gantry (17). The upper end of the crossbeam of the gantry (17) is rotatably connected to a main shaft (22) coaxial with the chuck (2) through a bearing seat. One end of the main shaft (22) is fixedly connected to the output end of the geared motor (16), and the other end of the main shaft (22) is fixedly connected to one side of the connecting frame (19). The upper end of the chassis (1) is connected to the two vertical parts of the gantry frame (17) through a rectangular hole. A lifting mechanism is installed inside the chassis (1). The lifting mechanism drives the gantry frame (17) to move so that the fixed mechanism on the turntable lifts the oil distribution sleeve. The lifting mechanism includes two threaded rods (24). Nuts (25) are threadedly connected to the rod walls of the two threaded rods (24). The nuts (25) are fixed on one side of the vertical part of the gantry frame (17). Both ends of the threaded rods (24) are vertically rotatably connected to the chassis (1) through needle roller bearings. A horizontal shaft (32) is rotatably connected to the chassis (1) through a bearing seat. Both ends of the horizontal shaft (32) are fixedly connected to a first bevel gear (28). The two first bevel gears (28) mesh with a second bevel gear (29). The second bevel gear (29) is coaxially fixed on the rod wall of the threaded rod (24). A first gear (30) is fixedly connected to the shaft wall of the horizontal shaft (32), and a second gear (31) meshes with one side of the first gear (30). A second motor (27) is fixedly connected to the machine housing (1) through a support. The output end of the second motor (27) is coaxially fixedly connected to one side of the second gear (31). The chassis (1) is fixedly connected to a first bracket and a second bracket on opposite sides. Two inclined shells (6) are symmetrically fixedly connected to one side of the first bracket. Multiple rollers (5) are rotatably connected inside the two shells (6) through a rotating shaft.

2. The oil distribution sleeve inner surface treatment device according to claim 1, characterized in that: A rectangular sleeve (9) is fixedly connected to the side wall of the support arm (7). A strip-shaped countersunk hole that matches the rectangular sleeve (9) is opened on one side of the chuck (2). Two rectangular blocks (34) are slidably connected to the other side of the chuck (2). The two rectangular blocks (34) are fixedly fixed to the side walls of the two support arms (7). U-shaped covers (15) are fixedly connected to both ends of the connecting frame (19). One end of the two U-shaped covers (15) is fixedly connected to one side of the chuck (2). The two edges of the U-shaped covers (15) form a channel with one side of the chuck (2) through notches. The rectangular blocks (34) are slidably connected in the channel.

3. The oil distribution sleeve inner surface treatment device according to claim 1, characterized in that: The chassis (1) is provided with two crossbars (26), and one side of the crossbars (26) is slidably connected to the inner wall of the chassis (1). The two crossbars (26) are fixed between the two vertical parts of the gantry (17). The chassis (1) is provided with a mounting plate (23) on one side. The mounting plate (23) is provided with two fixing parts on one side. The chassis (1) is provided with two strip holes on one side. The fixing parts pass through the strip holes and are fixedly connected to the bar wall of one of the crossbars (26). The mounting plate (23) is symmetrically fixedly connected with two half shafts (3). The two half shafts (3) are rotatably connected to the shaft walls of the two half shafts (3). The support wheels (4) are in contact with the edge of the chuck (2).

4. The oil distribution sleeve inner surface treatment device according to claim 1, characterized in that: The grinding mechanism includes a drive shaft (21), a sandpaper belt is fixed on the shaft wall of the drive shaft (21), the lower end of the slider (44) is fixedly connected to a mounting block (53), one side of the mounting block (53) contacts the side wall of the chuck (2), one side of the frame (10) is fixedly connected to an ear seat, and both ends of the drive shaft (21) are rotatably connected between the mounting block (53) and the ear seat through sealed bearings; A third motor (41) is fixedly connected inside the frame (10). A protective cover is fixedly connected to one side of the frame (10). A synchronous belt (42) is provided inside the protective cover. Two synchronous pulleys (43) are provided inside the synchronous belt (42). One of the synchronous pulleys (43) is fixedly connected to the output end of the third motor (41), and the other synchronous pulley (43) is fixedly connected to one end of the transmission shaft (21). A circular hole is opened on one side of the frame (10). An electric push rod (11) is sleeved in the circular hole. The telescopic end of the electric push rod (11) is fixedly connected to the inner side of the frame (10). The side wall of the electric push rod (11) is fixed to one side of the positioning plate (12).

5. The oil distribution sleeve inner surface treatment device according to claim 2, characterized in that: One end of the fixing component is provided with a support plate, and one end of the support plate is fixedly connected with a thrust plate (8). The other end of the support plate is symmetrically fixedly connected with two slide rails (39). The two arms (7) of the fixing component are provided with slides that cooperate with the slide rails (39) on opposite sides. Both ends of the support plate are fixedly connected with sleeves (38). Long rod bolts (40) are sleeved in both sleeves (38). One end of the arm (7) is provided with a threaded hole that cooperates with the long rod bolts (40).

6. The oil distribution sleeve inner surface treatment device according to claim 1, characterized in that: Two fixing rods (52) and two positioning pins (51) are fixedly connected to one side of the positioning plate (12). Multiple through holes and two positioning holes are provided in the slot (48). The positioning pins (51) are inserted into the positioning holes. Two sleeves (20) are fixedly connected to one side of the chuck (2). The side wall of the sleeve (20) is threaded to the bolt through the threaded hole. The sleeve (20) is provided with a protrusion. The positioning pins (51) pass through the through hole and are inserted into the sleeve (20) and are provided with a plane that cooperates with the protrusion.

7. A method for treating the inner surface of an oil distribution sleeve using the processing apparatus described in claim 5, characterized in that, Includes the following steps: Step 1: Start the first motor (18) to drive the fixing mechanism to the maximum clamping range, start the second motor (27) to drive the lifting mechanism to make the chuck (2) and the fixing mechanism at the lower stop point, place the oil sleeve workpiece on the roller (5) and push it to contact the side of the rectangular sleeve (9), then start the second motor (27) to drive the lifting mechanism to reset, and then start the first motor (18) to reset and retract the support arm (7) of the fixing mechanism until the upper end of the oil sleeve contacts the positioning groove (49); Step 2: Assemble the support plate at the support arm (7) and lock it with long bolts (40). Use the thrust plate (8) to press the oil bushing. Step 3: Select an aluminum bronze welding wire of appropriate diameter and adjust the current and wire feeding speed of the welding machine. Use a robotic arm to operate the welding gun head to deposit an aluminum bronze layer in the oil sleeve. Select an appropriate welding process through the preset program in the robotic arm controller. Control the thickness of the aluminum bronze weld layer by controlling the speed of the welding gun head with the robotic arm and leave a machining allowance. Step 4: After welding, use a grinding machine to rough grind the aluminum bronze weld overlay until there are no obvious uneven surfaces on the surface of the aluminum bronze weld overlay. Then reverse the operation from step 1 to remove the oil sleeve workpiece. After that, use an ultrasonic flaw detector to perform flaw detection and record the defect location and defect depth. Step 5: Manually repair the defects in the aluminum bronze. After repair, the workpiece is sent to the finishing station for turning, and finally the inner surface of the oil sleeve is treated.

Images