An internal hole boring machine

Abstract

The utility model relates to a hole boring machine belongs to boring machine technical field. Its characterized in that: driving device and pressure device interval and opposite setting, and form the space containing work piece between driving device and pressure device, the inside of driving device and the inside of pressure device all are provided with the positioning part, pressure device or driving device is provided with the through -hole for boring bar (10) to pass through, feed device is connected with boring bar (10), and feed device drives boring bar (10) axial movement. The two positioning parts of this hole boring machine are positioned at the two ends of the cylinder respectively, and the cylinder is clamped by the cooperation of the pressure device and the driving device, so that the two ends of the cylinder can be accurately positioned, the clamping speed of the cylinder is fast, the feed device drives the boring bar to feed, the boring bar passes through the pressure device or the driving device and extends into the cylinder, so as to realize the boring of the cylinder, the boring accuracy of the cylinder is high, and since the clamping speed of the cylinder is fast, the boring speed of the cylinder is improved.

Description

Technical Field

[0001] An internal boring machine, belonging to the field of boring machine technology. Background Technology

[0002] A boring machine is a machine tool that primarily uses a boring bar to bore pre-drilled holes in a workpiece. Typically, the rotation of the boring bar is the primary motion, while the movement of the boring bar or workpiece is the feed motion. It is mainly used for machining high-precision holes or for finishing multiple holes in a single positioning operation. In addition, it can also perform machining of other surfaces related to hole finishing. Using different tools and accessories, it can also perform drilling, milling, and cutting operations with higher precision and surface finish than a drilling machine.

[0003] When manufacturing individual hydraulic props, the cylinder body of each prop requires turning its outer diameter and boring its inner diameter. Turning the outer diameter is typically done on a lathe, while boring the inner diameter is done on a boring machine. When boring the cylinder body on a boring machine, the cylinder body needs to be clamped. The boring machine rotates the boring bar relative to the cylinder body, allowing the boring tool on the boring bar to bore the cylinder body. After boring, the boring tool must be removed from the boring bar before the boring bar and cylinder body can be reset. When boring the next cylinder body, the removed boring tool must be reinstalled on the boring bar to enable the boring operation of lowering the cylinder body.

[0004] Currently, both the removal and insertion of boring tools are done manually. Before boring, the operator installs the boring tool on the boring bar. After boring, the operator needs to reach into the boring bar to remove or insert the boring tool. Because the gap between the boring tool and the boring hole on the boring bar is very small, the boring tool must be aligned with the boring hole before it can be inserted. This is very inconvenient, and the boring tool gets very hot after boring, which can easily burn the operator, posing a high safety hazard.

[0005] In addition, when boring cylinders, existing boring machines usually clamp the cylinder from one end. Due to the length of the cylinder, it is difficult to ensure that the boring bar is coaxial with the cylinder when clamping it, which makes cylinder positioning difficult, the accuracy of the machined cylinder is unstable, and the clamping speed of the cylinder is slow, resulting in low machining efficiency. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide an internal boring machine that positions both ends of the cylinder body and clamps the cylinder body through both ends, so that the cylinder body is accurately positioned and the clamping speed is fast.

[0007] The technical solution adopted by the present invention to solve its technical problem is as follows: the internal boring machine is characterized in that it includes a driving device, a clamping device, a boring bar and a feeding device. The driving device and the clamping device are spaced apart and directly opposite each other, and a space for accommodating the workpiece is formed between the driving device and the clamping device. A positioning part is provided on the inner side of the driving device and the inner side of the clamping device. A through hole for the boring bar to pass through is provided on the clamping device or the driving device. The feeding device is connected to the boring bar and drives the boring bar to move axially.

[0008] Preferably, the positioning unit includes an active support plate and a passive support plate. The active support plate is mounted on the drive device and rotates synchronously with it. The passive support plate is rotatably mounted on the clamping device. Both the active and passive support plates are provided with through holes, and the inner ends of both the active and passive support plates are provided with positioning ports with an inner diameter larger than the outer inner diameter. The two ends of the cylinder are respectively positioned in the positioning ports. The clamping device presses the cylinder onto the active support plate through the passive support plate, thereby achieving the clamping of the cylinder. The positioning of the cylinder at both ends ensures reliable positioning of the cylinder, convenient clamping of the cylinder, and fast loading speed of the cylinder.

[0009] Preferably, the feeding device includes a feed motor, a feed seat, and a feed screw. The feed seat is threadedly connected to the feed screw, the feed motor is connected to the feed screw, and the boring bar is mounted on the feed seat. The feed motor drives the feed seat to reciprocate through the feed screw, which in turn drives the boring bar to reciprocate, so that the boring bar can bore the entire inner wall of the cylinder.

[0010] Preferably, the device further includes a boring bar removal device, a boring bar placement device, and a boring bar conveying device. The end of the boring bar passes through a through hole in the clamping device and extends between the driving device and the clamping device. The boring bar removal device is installed on the side of the driving device, which has an outlet for the boring bar removal device to enter. The boring bar placement device is installed on the clamping device. The boring bar conveying device is located between the boring bar removal device and the boring bar placement device, and has a suction part. The boring bar removal device can remove the boring bar from the boring bar through the outlet to facilitate the return of the boring bar. The boring bar conveying device conveys the boring bar removed by the boring bar removal device to the boring bar placement device, which then places the boring bar back onto the boring bar to facilitate boring the next cylinder block.

[0011] Preferably, the boring tool conveying device includes a conveyor motor, a synchronous belt, and a conveyor frame. The conveyor motor is connected to the conveyor frame via the synchronous belt and drives the conveyor frame to reciprocate between the boring tool removal device and the boring tool placement device. A suction unit is installed at the bottom of the conveyor frame. The conveyor motor drives the conveyor frame to move via the synchronous belt, and the suction unit at the bottom of the conveyor frame can pick up the boring tool or put it down, thereby realizing the automatic transfer of the boring tool.

[0012] Preferably, the device also includes a lifting device, which is mounted on the boring bar conveying device, and the suction unit is mounted on the lifting device. The lifting device can drive the suction unit to rise and fall, which facilitates both the suction unit picking up the boring bar and placing the boring bar on the boring bar placement device.

[0013] Preferably, the suction unit is an electromagnet mounted on the boring bar conveying device. Using an electromagnet to suction the boring bar facilitates both the suction of the boring bar and its placement on the boring bar loading device.

[0014] Preferably, the drive device includes a spindle box and a drive motor. The drive motor is connected to the input shaft of the spindle box, and a positioning part is provided on the spindle of the spindle box. The drive motor drives the positioning part to rotate through the spindle box, thereby realizing the rotation of the cylinder block, so that the cylinder block and the boring tool rotate relative to each other.

[0015] Preferably, the clamping device includes a clamping seat and a clamping hydraulic cylinder. The through hole is provided on the clamping seat, and the piston rod of the clamping hydraulic cylinder is connected to the clamping seat. The clamping hydraulic cylinder drives the clamping seat to move, so that the positioning part on the clamping seat cooperates with the positioning part on the drive device to clamp the cylinder body. The cylinder body is clamped reliably and conveniently.

[0016] Compared with the prior art, the beneficial effects of this invention are:

[0017] The drive and clamping devices of this internal boring machine are equipped with positioning parts on their inner sides. The cylinder body is located between the two positioning parts, which respectively position the two ends of the cylinder body. The clamping device and the drive device cooperate to clamp the cylinder body, so that both ends of the cylinder body can be accurately positioned, and the clamping speed of the cylinder body is fast. The feed device drives the boring bar to feed, so that the boring bar passes through the clamping device or the drive device and extends into the cylinder body, thereby realizing the boring of the cylinder body. The boring accuracy of the cylinder body is high, and the fast clamping speed of the cylinder body increases the boring speed of the cylinder body. Attached Figure Description

[0018] Figure 1 This is a top view schematic diagram of an internal boring machine.

[0019] Figure 2 This is a front view schematic diagram of an internal boring machine after removing the boring tool removal device, boring tool placement device, and boring tool conveying device.

[0020] Figure 3 A front sectional view of the clamping disc and the passive support disc clamping the cylinder body.

[0021] Figure 4 for Figure 3 A magnified view of a portion of point A in the middle.

[0022] Figure 5 This is a front view schematic diagram of the boring tool transport device.

[0023] Figure 6 for Figure 5 A magnified view of a section at point B.

[0024] Figure 7 This is a top view of the boring bar removal device.

[0025] Figure 8 This is a front view schematic diagram of the boring tool removal device.

[0026] Figure 9 This is a left-side view of the boring bar insertion device.

[0027] Figure 10 This is a top view of the boring bar placement device.

[0028] In the diagram: 1. Main body; 2. Main body guide rail; 3. Spindle box; 4. Active support plate; 5. Take-out port; 6. Passive support plate; 7. Clamping seat; 8. Boring bar; 9. Feed seat; 10. Feed motor; 11. Feed screw; 12. Clamping plate; 13. Cylinder body; 14. Crossbeam; 15. Synchronous belt; 16. Synchronous pulley; 17. Conveyor frame; 18. Lifting cylinder; 19. Electromagnet; 20. Take-out frame; 21. Adjusting electric cylinder; 22. Adjusting frame; 23. Take-out translation frame; 24. Take-out translation cylinder; 25. Receiving groove; 26. Push-out cylinder; 27. Take-out translation guide rail; 28. Take-out connecting plate. 29. Push-out plate, 30. Guide rod, 31. Adjusting guide rail, 32. Photoelectric sensor, 33. Mounting plate, 34. Support bracket, 35. Support block, 36. Positioning frame, 37. Positioning cylinder, 38. Mounting seat, 39. Insertion translation guide rail, 40. Insertion translation frame, 41. Insertion translation cylinder, 42. Pushing cylinder, 43. Guide groove, 44. Support plate, 45. Plug, 46. Guide sleeve, 47. Boring tool, 48. Insertion connecting plate, 49. Push plate, 50. Steel ball, 51. Spring, 52. Supporting cylinder, 53. Boring tool removal device, 54. Boring tool insertion device, 55. Boring tool conveying device. Detailed Implementation

[0029] The present invention will be further described below with reference to specific embodiments. However, those skilled in the art should understand that the detailed description given here with reference to the accompanying drawings is for better explanation. The structure of the present invention necessarily exceeds the limited embodiments described herein. Some equivalent alternatives or common means will not be described in detail here, but still fall within the protection scope of this application.

[0030] Figures 1-10 This is the preferred embodiment of the present invention, which is described below in conjunction with the accompanying drawings. Figures 1-10 The present invention will be further described below.

[0031] An internal boring machine includes a drive unit, a clamping unit, a boring bar 7, and a feed unit. The drive unit and the clamping unit are spaced apart and directly opposite each other, forming a space between the drive unit and the clamping unit to accommodate the workpiece. Positioning parts are provided on the inner side of both the drive unit and the clamping unit. A through hole for the boring bar 7 to pass through is provided on either the clamping unit or the drive unit. The feed unit is connected to the boring bar 7 and drives the boring bar 7 to move axially. The drive and clamping devices of this internal boring machine are both equipped with positioning parts. The cylinder body 12 is located between the two positioning parts. The two positioning parts respectively position the two ends of the cylinder body 12. The clamping device and the drive device cooperate to clamp the cylinder body 12, so that both ends of the cylinder body 12 can be accurately positioned, and the clamping speed of the cylinder body 12 is fast. The feed device drives the boring bar 7 to feed, so that the boring bar 7 passes through the clamping device or the drive device and extends into the cylinder body 12, thereby realizing the boring of the cylinder body 12. The boring accuracy of the cylinder body 12 is high, and the fast clamping speed of the cylinder body 12 increases the boring speed of the cylinder body 12.

[0032] Specifically: such as Figures 1-2 As shown: This internal boring machine also includes a main body 1, a boring tool removal device 52, a boring tool conveying device 55, and a boring tool placement device 53. A drive device is installed at the left end of the main body 1. A clamping device is slidably installed on the main body 1 and spaced apart on the right side of the drive device. A feed device is located at the right end of the main body 1. The clamping device has a through hole for the boring bar 7 to pass through. The boring tool removal device 52 is located on one side of the drive device and is installed on the main body 1. The boring tool placement device 53 is located on one side of the clamping device and is fixedly connected to the clamping device. The boring tool placement device 53 and the boring tool removal device 52 are located on the same side of the main body 1. The boring tool conveying device 54 is installed on the main body 1 and is located between the boring tool removal device 52 and the boring tool placement device 53.

[0033] The drive unit includes a spindle box 3, a drive motor, and an active support plate 4. The spindle box 3 is installed at the left end of the main body 1, and the drive motor is installed on the main body 1. The output shaft of the drive motor is connected to the input shaft of the spindle box 3 via a belt. The active support plate 4 is coaxially mounted on the output shaft of the spindle box 3, forming a positioning part. The drive motor drives the active support plate 4 to rotate through the spindle box 3. The active support plate 4 is cylindrical, allowing the boring bar 7 to extend into the active support plate 4 to ensure boring of the entire inner bore of the cylinder block 12.

[0034] The clamping device includes a clamping seat 6, a passive support plate 5, and a clamping hydraulic cylinder. A horizontal main body guide rail 2 is mounted on the upper side of the main body 1. The main body guide rail 2 has two symmetrically arranged on both sides of the main body 1. The clamping seat 6 is located on the upper side of the main body guide rail 2 and is slidably mounted on the main body guide rail 2. The clamping hydraulic cylinder is mounted on the main body 1. The piston rod of the clamping hydraulic cylinder is connected to the clamping seat 6 and pushes the clamping seat 6 to move in a direction closer to or away from the spindle box 3. The passive support plate 5 is rotatably mounted on the clamping seat 6 to form a positioning part. The passive support plate 5 and the active support plate 4 are coaxially arranged, and a space for accommodating the cylinder body 12 is formed between the passive support plate 5 and the active support plate 4. Both the passive support plate 5 and the clamping seat 6 are provided with through holes for the boring bar 7 to pass through.

[0035] When the cylinder body 12 is clamped between the active support plate 4 and the passive support plate 5, the clamping hydraulic cylinder pushes the clamping seat 6 to move closer to the spindle box 3, so that the passive support plate 5 and the active support plate 4 cooperate to clamp the cylinder body 12. The drive motor drives the active support plate 4 to rotate through the spindle box 3, and the passive support plate 5 rotates synchronously with the cylinder body 12, thereby causing the cylinder body 12 to rotate relative to the boring bar 7, so as to realize the boring of the cylinder body 12.

[0036] The feeding device includes a feed motor 9, a feed screw 10, and a feed seat 8. The feed seat 8 is located on the right side of the clamping seat 6 and is mounted on the upper side of the main guide rail 2. The feed seat 8 is slidably mounted on the main guide rail 2. The feed screw 10 is rotatably mounted on the main body 1 and is located between the two main guide rails 2. The feed screw 10 is parallel to the main guide rail 2. The feed seat 8 is located on the upper side of the feed screw 10 and is threadedly connected to the feed screw 10. The feed motor 9 is mounted on the right end of the main body 1, and the output shaft of the feed motor 9 is connected to the feed screw 10. The feed motor 9 drives the feed seat 8 to reciprocate along the main guide rail 2 through the feed screw 10. The right end of the boring bar 7 is fixedly connected to the feed seat 8, and the boring bar 7 is coaxially arranged with the active support plate 4. The left end of the boring bar 7 is provided with a boring tool hole for placing the boring tool 46.

[0037] An outlet 401 is provided on the side of the active support plate 4, which penetrates the active support plate 4. The outlet 401 is provided in the diameter direction through the active support plate 4. The boring tool removal device 52 can extend into the outlet 401 and remove the boring tool from the boring bar 7.

[0038] like Figures 3-4 As shown: Clamping discs 11 are coaxially mounted on both the active support disc 4 and the passive support disc 5. The clamping disc 11 on the active support disc 4 is detachably connected to the active support disc 4, and the clamping disc 11 on the passive support disc 5 is integrally set with the passive support disc 5.

[0039] The structure and principle of the clamping plate 11 and the active support plate 4 for positioning the end of the cylinder body 12 are the same as the structure and principle of the clamping plate 11 and the passive support plate 5 for positioning the end of the cylinder body 12. In this embodiment, the structure of the clamping plate 11 and the passive support plate 5 is used as an example for explanation.

[0040] The clamping disc 11 is annular, and its inner diameter is larger than that of the passive support disc 5. When clamping the cylinder 12, one end of the cylinder 12 extends into the clamping disc 11, and the end of the cylinder 12 is supported on the end face of the passive support disc 5, thereby achieving the positioning and clamping of the cylinder 12.

[0041] like Figures 5-6 As shown: This internal boring machine also includes a lifting device, which is installed on the boring tool conveying device 54 and moves back and forth with the boring tool conveying device 54. The bottom of the lifting device is provided with a suction part.

[0042] In this embodiment, the lifting device includes a lifting cylinder 17, which is vertically mounted on the boring bar conveying device 54. The suction part is an electromagnet 18 mounted on the piston rod of the lifting cylinder 17. The lifting device can also be a lifting electric cylinder, and the electromagnet 18 can be replaced by a suction cup.

[0043] The boring tool conveying device 54 includes a conveying motor, a synchronous belt 14, and a conveying frame 16. A horizontal beam 13 is mounted on the main body 1 and is positioned above the boring tool removal device 52 and the boring tool placement device 53. Synchronous pulleys 15 are rotatably mounted at both ends of the beam 13. The two ends of the synchronous belt 14 mesh with the corresponding synchronous pulleys 15. The conveying motor is mounted on the beam 13, and its output shaft is connected to any one of the synchronous pulleys 15, driving it to rotate. A horizontal conveying guide rail is mounted at the bottom of the beam 13, and the conveying frame 16 is slidably mounted on the guide rail. The conveying frame 16 is fixedly connected to the bottom of the synchronous belt 14, allowing it to move synchronously with the belt.

[0044] like Figures 7-8As shown, the boring bar removal device 52 includes a removal translation device, a push-out device, and a receiving component. Both the receiving component and the push-out device are mounted on the removal translation device, arranged sequentially along the moving direction of the removal translation device. The receiving component and the push-out device are spaced apart. The push-out device has a push-out portion directly opposite the receiving component. The removal translation device of the boring bar removal device 52 can drive the receiving component and the push-out device to move closer to or further away from the boring bar 7, so that the boring bar 7 is directly opposite the spaced portion of the receiving component and the push-out device. When the boring bar 7 extends between the receiving component and the push-out device, the push-out device drives the push-out portion to move, and the push-out portion pushes the boring bar 46 on the boring bar 7 onto the receiving component, thereby achieving automatic removal of the boring bar 46. This makes the removal of the boring bar 46 convenient and eliminates safety hazards by eliminating the need for manual operation.

[0045] The boring bar removal device 52 also includes an adjustment device and a removal frame 19. The removal frame 19 is mounted on the machine bed 1 and is detachably connected to the machine bed 1. The adjustment device is mounted on the upper side of the removal frame 19, and the adjustment direction of the adjustment device is parallel to the movement direction of the boring bar 7. The removal translation device is mounted on the adjustment device, and the translation direction of the removal translation device is perpendicular to the movement direction of the boring bar 7. That is, the adjustment direction of the adjustment device is perpendicular to the translation direction of the removal translation device. The ejection device and the receiving assembly are both mounted on the removal translation device, and the ejection device and the receiving assembly are spaced apart, forming a space between the ejection device and the receiving assembly to accommodate the boring bar 7.

[0046] The adjustment device includes an adjustment frame 21 and an adjustment cylinder 20. The adjustment cylinder 20 is horizontally installed on the top of the take-out frame 19. The adjustment cylinder 20 is set along the movement direction of the boring bar 7. The piston rod of the adjustment cylinder 20 is connected to the adjustment frame 21 and pushes the adjustment frame 21 to reciprocate.

[0047] The take-out translation device is installed on the top of the adjustment frame 21. The take-out translation device can move synchronously with the adjustment frame 21, thereby driving the push-out device and the receiving component to move synchronously, so that the end of the boring bar 7 enters between the receiving component and the push-out device, and the push-out part is aligned with the boring tool on the boring bar 7.

[0048] A horizontal adjusting guide rail 30 is installed on the cylinder body of the adjusting electric cylinder 20. The adjusting guide rail 30 is set horizontally, and the adjusting frame 21 is set on the upper side of the adjusting guide rail 30. The adjusting frame 21 is slidably connected to the adjusting guide rail 30. The adjusting guide rail 30 can guide the adjusting frame 21 to ensure that the movement of the adjusting frame 21 is more stable.

[0049] A photoelectric sensor 31 is installed at the end of the cylinder body of the adjusting electric cylinder 20. The photoelectric sensor 31 can detect the position of the adjusting frame 21 to ensure that the push-out part is aligned with the boring tool 46 on the boring bar 7, thereby pushing out the boring tool 46.

[0050] The removal and translation device includes a removal and translation frame 22 and a removal and translation cylinder 23. An installation plate 32 is installed on the side of the adjustment frame 21 away from the push-out device. The removal and translation cylinder 23 is horizontally installed on the side of the installation plate 32 away from the push-out device. The removal and translation frame 22 is installed on the upper side of the adjustment frame 20. The removal and translation cylinder 23 and the removal and translation frame 22 are located on both sides of the installation plate 32. The piston rod of the removal and translation cylinder 23 passes through the through hole on the installation plate 32 and is fixedly connected to the removal and translation frame 22, and pushes the removal and translation frame 22 to reciprocate.

[0051] Both the ejection device and the receiving assembly are installed on the upper side of the take-out translation frame 22. The take-out translation cylinder 23 drives the ejection device and the receiving assembly to reciprocate in the direction of approaching or moving away from the boring bar 7 through the take-out translation frame 22, so that the boring bar 7 can be aligned with the spacing of the ejection device and the receiving assembly, which can facilitate the removal of the boring tool 46 without hindering the operation of the boring bar 46.

[0052] A take-out translation guide 26 is installed on the upper side of the adjustment frame 21. The take-out translation guide 26 is set perpendicular to the adjustment guide 30. The take-out translation frame 22 is set on the upper side of the take-out translation guide 26. The take-out translation frame 22 and the take-out translation guide 26 are slidably connected. In order to avoid mutual interference between the take-out translation guide 26 and the boring bar 7, the take-out translation guide 26 is installed on the left end of the adjustment frame 21, and the left end of the take-out translation frame 22 is slidably connected to the take-out translation guide 26.

[0053] The receiving component is a receiving groove 24 with its opening facing upwards. The receiving groove 24 and the take-out translation frame 22 are located on the same side of the mounting plate 32. The end of the receiving groove 24 near the mounting plate 32 is in contact with the mounting plate 32, so that the mounting plate 32 can play a positioning role. When the boring tool 46 is pushed into the receiving groove 24, the end of the boring tool 46 is in contact with the mounting plate 32, which means that the boring tool 46 has been pushed out into place.

[0054] The ejection device includes an ejection cylinder 25, and the ejection part includes a take-out connecting plate 27 and an ejection plate 28. The ejection cylinder 25 is horizontally mounted on the upper side of the take-out translation frame 22. The ejection cylinder 25 is arranged parallel to the take-out translation cylinder 23. The ejection cylinder 25 is located on the left side of the receiving groove 24. The ejection plate 28 is spaced apart on the right side of the ejection cylinder 25 to avoid mutual interference with the boring bar 7. The take-out connecting plate 27 is located between the ejection plate 28 and the ejection cylinder 25. One end of the take-out connecting plate 27 is detachably connected to the piston rod of the ejection cylinder 25, and the other end is fixedly connected to the ejection plate 28. The ejection plate 28 is located on the side of the take-out connecting plate 27 near the receiving groove 24. The ejection plate 28 is arranged opposite to the receiving groove 24, and the ejection plate 28 can extend into the receiving groove 24.

[0055] The ejection section also includes a guide rod 29, which is disposed between the ejection plate 28 and the ejection cylinder 25. The guide rod 29 and the ejection plate 28 are spaced apart to avoid mutual interference between the guide rod 29 and the boring bar 7. The guide rod 29 is parallel to the ejection plate 28. One end of the guide rod 29 is fixedly connected to the take-out connecting plate 27 and moves synchronously with the take-out connecting plate 27. The other end of the guide rod 29 is slidably connected to the guide plate on the cylinder body of the ejection cylinder 25, thereby guiding the take-out connecting plate 27 and ensuring that the ejection plate 28 is aligned with the receiving groove 24.

[0056] like Figures 9-10 As shown, the boring bar placement device 53 includes a placement translation device, a pushing device, and a guiding device. Both the pushing device and the guiding device are mounted on the placement translation device, arranged sequentially along the translation direction. The pushing device and the guiding device are positioned opposite each other. The pushing device has a pushing part on its side near the guiding device, and the guiding device has a placement opening on its side near the pushing device. The pushing device of the boring bar placement device 53 can drive the guiding device and the pushing device to move, causing the guiding device to fit against the boring bar 7. The pushing device pushes the boring bar 46 inside the guiding device into the boring bar hole of the boring bar 7 through the pushing part. Due to the guidance of the guiding device, the boring bar 46 can be smoothly inserted into the boring bar hole, thus achieving automatic installation of the boring bar 46. This ensures accurate installation of the boring bar 46, speeds up the installation process, and eliminates safety hazards.

[0057] The boring bar placement device 53 also includes a positioning device. The positioning device and the placement translation device are both mounted on the clamping frame 6, and the positioning device and the placement translation device are located on both sides of the boring bar 7. The guide device and the pushing device are arranged in sequence along the direction away from the boring bar 7, and the guide device and the positioning device are arranged opposite each other.

[0058] The positioning device includes a positioning frame 35 and a positioning cylinder 36. The positioning frame 35 is mounted on the clamping frame 6, and the positioning cylinder 36 is horizontally mounted on the top of the positioning frame 35. A positioning plate is mounted on the piston rod of the positioning cylinder 36.

[0059] The placement translation device includes a placement translation frame 39 and a placement translation cylinder 40. A mounting base 37 is provided on the clamping seat 6. The mounting base 37 is detachably connected to the clamping seat 6. A placement translation guide rail 38 is provided on the top of the mounting base 37. The placement translation guide rail 38 is set perpendicular to the boring bar 7. The placement translation frame 39 is set on the upper side of the placement translation guide rail 38. The placement translation frame 39 is slidably connected to the placement translation guide rail 38. The placement translation cylinder 40 is horizontally mounted on the mounting base 37. The placement translation cylinder 40 is located at the end of the mounting base 37 away from the boring bar 7. The piston rod of the placement translation cylinder 40 is connected to the placement translation frame 39 and pushes the placement translation frame 39 to reciprocate in the direction of approaching or moving away from the boring bar 7.

[0060] The guiding device includes a guide groove 42 and a guide sleeve 45. The guide groove 42 and the guide sleeve 45 are arranged sequentially along the direction close to the boring bar 7. Both the guide groove 42 and the guide sleeve 45 are installed on the top of the placement translation frame 39 and move synchronously with the placement translation frame 39. The end of the guide sleeve 45 near the boring bar 7 extends out of the placement translation frame 39, which can prevent the placement translation frame 39 from obstructing the operation of the guide sleeve 45. The guide groove 42 is horizontally arranged with its opening facing upward to form a placement opening. The inner hole of the guide sleeve 45 is a square through hole directly opposite the guide groove 42.

[0061] The guide groove 42 facilitates the placement of the boring bar 46. The guide sleeve 45 can fit against the boring bar 7 and face the boring bar hole, ensuring that the boring bar 46 can accurately enter the boring bar hole.

[0062] A damping device is provided on the inner wall of the guide sleeve 45. Several damping devices are provided at the top and bottom of the guide sleeve 45. The damping device can dampen the boring tool 46 and prevent the boring tool 46 from being installed inaccurately due to excessive movement speed during the installation process.

[0063] The damping device includes a steel ball 49 and a spring 50. A through hole is provided on the guide sleeve 45, and the steel ball 49 is slidably installed in the through hole. The inner side of the steel ball 49 protrudes inward from the guide sleeve 45. A blocking part with a diameter smaller than the middle diameter is provided at the inner end of the through hole, which can limit the movement of the steel ball 49. The spring 50 is disposed in the through hole, and the outer end of the through hole is closed by a plug 44. The spring 50 is in a compressed state, with its inner end supported on the steel ball 49 and its outer end supported on the plug 44, thereby pressing the steel ball against the blocking part.

[0064] When the boring bar 46 enters the guide sleeve 45, the boring bar 46 pushes the steel ball 49 outward. The steel ball 49 can both dampen the boring bar 46 to facilitate precise control of the position of the boring bar 46 and center the boring bar 46 to ensure that the boring bar 46 is aligned with the boring hole on the boring bar 7.

[0065] The pushing part is a sliding push plate 48 disposed in the guide groove 42. The push plate 48 can extend into the guide sleeve 45 and push the boring tool 46 from the guide groove 42 into the boring tool hole of the boring bar 7.

[0066] The pushing device includes a pushing cylinder 41. A vertical support plate 43 is installed at the end of the guide groove 42 away from the guide sleeve 45. The support plate 43 is provided with a through hole for the piston rod of the pushing cylinder 41 to pass through. The pushing cylinder 41 is located on the side of the support plate 43 away from the guide groove 42 and is horizontally mounted on the support plate 43.

[0067] The end of the push plate 48 near the support plate 43 is connected to a vertical insertion connecting plate 47. The lower end of the insertion connecting plate 47 is fixedly connected to the push plate 48, and the upper end is detachably connected to the piston rod of the push cylinder 41. The push cylinder 41 pushes the push plate 48 to move along the guide groove 42 through the insertion connecting plate 47.

[0068] The boring bar insertion device 53 also includes a support device mounted on the mounting base 37. The support device is located on the side of the guide device away from the push device and is located on the lower side of the boring bar 7.

[0069] The supporting device includes a supporting cylinder 51, a supporting frame 33, and supporting blocks 34. The supporting cylinder 51 is vertically arranged and installed on the lower side of the mounting base 37. The supporting frame 33 is located on the upper side of the mounting base 37. The piston rod of the supporting cylinder 51 can slide through the mounting base 37 and connect to the supporting frame 33, pushing the supporting frame 33 to rise and fall. The top of the supporting frame 33 is provided with an upward-opening V-shaped supporting part. Supporting blocks 34 are installed on both sides of the supporting part, and each supporting block 34 is inclined inward from bottom to top.

[0070] The working process of this internal boring machine is as follows: First, the boring tool 46 is placed on the boring bar 7 by the boring tool placement device 53. Specifically, the boring tool to be installed is placed in the guide groove 42, the support cylinder 51 extends and pushes the support frame 33 upward until the two support blocks 34 support the bottom of the boring bar 7, thereby positioning the boring bar 7. The placement translation cylinder 40 is activated and pushes the placement translation frame 39 to move closer to the boring bar 7 until the end of the guide sleeve 45 is in contact with the boring bar 7. At this time, the inner hole of the guide sleeve 45 is aligned with the boring tool hole of the boring bar 7.

[0071] The cylinder 41 pushes the push plate 48 to move, and the push plate 48 pushes the boring tool 46 from the guide groove 42 to the guide sleeve 45. The push plate 48 continues to move and extends into the guide sleeve 45, and pushes the boring tool 46 into the boring hole of the boring bar 7.

[0072] The positioning cylinder 36 actuates and pushes the positioning plate until it engages with the push plate 48 to clamp the boring tool 46, at which point the boring tool 46 is installed in place. The positioning cylinder 36 and the push cylinder 41 then reset, as do the translation cylinder 40 and the support cylinder 51, completing the automatic installation of the boring tool 46.

[0073] One end of the cylinder body 12 is placed into the active support plate 4, while the clamping hydraulic cylinder pushes the clamping frame 6 towards the active support plate 4, so that the passive support plate 5 cooperates with the active support plate 4 to clamp the cylinder body 12. The drive motor drives the active support plate 4 to rotate, which in turn drives the cylinder body 12 to rotate, so that the cylinder body 12 and the boring bar 7 rotate relative to each other. The feed motor 9 drives the feed seat 8 to move through the feed screw 10, thereby realizing the feed of the boring bar 46 to bore the inner hole of the cylinder body 12.

[0074] After boring is completed, the end of the boring bar 7 extends into the active support plate 4, so that the take-out port 401 of the active support plate 4 is directly opposite the boring tool take-out device 52.

[0075] The boring bar removal device 52 removes the boring bar 46 as follows: The removal translation cylinder 23 pushes the removal translation frame 22 towards the boring bar 7, positioning the end of the boring bar 7 between the receiving groove 24 and the ejector plate 28. The adjusting electric cylinder 20 drives the adjusting frame 21 to move along the boring bar 7, causing the end of the boring bar 7 to extend between the ejector plate 28 and the receiving groove 24, with the ejector plate 28 directly opposite the boring bar 46 on the boring bar 7. The ejector cylinder 25 retracts, and the ejector plate 28 moves synchronously with the ejector cylinder 25 via the removal connecting plate 27. The end of the ejector plate 28 supports the boring bar 46 and pushes the boring bar 46 into the receiving groove 24, thus achieving automatic removal of the boring bar 46.

[0076] After the boring bar 46 is removed, the push-out cylinder 25 is reset first, then the electric cylinder 20 is reset, and finally the translation cylinder 23 is removed and reset to avoid hindering the operation of the boring bar 7.

[0077] The lifting cylinder 17 extends, bringing the electromagnet 18 into contact with the boring bar 46 in the receiving groove 24. At this time, the electromagnet 18 is energized and picks up the boring bar 46, and the lifting cylinder 17 returns to its original position. The conveyor motor drives the conveyor frame 16 to move via the synchronous belt 14, positioning the electromagnet 18 directly above the guide groove 42. The lifting cylinder 17 extends, placing the boring bar 46 into the guide groove 42. Then, the electromagnet 18 is de-energized, and the lifting cylinder 17 returns to its original position, thus achieving automatic placement of the boring bar 46.

[0078] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. An internal boring machine, characterized in that: It includes a drive device, a clamping device, a boring bar (7) and a feed device. The drive device and the clamping device are spaced apart and facing each other, and a space for accommodating the workpiece is formed between the drive device and the clamping device. The inner side of the drive device and the inner side of the clamping device are provided with positioning parts. The clamping device or the drive device is provided with a through hole for the boring bar (7) to pass through. The feed device is connected to the boring bar (7) and the feed device drives the boring bar (7) to move axially. It also includes a boring bar removal device (52), a boring bar placement device (53), and a boring bar conveying device (54). The end of the boring bar (7) passes through the through hole on the clamping device and extends between the driving device and the clamping device. The boring bar removal device (52) is installed on the side of the driving device. The driving device is provided with an outlet (401) for the boring bar removal device (52) to extend into. The boring bar placement device (53) is installed on the clamping device. The boring bar conveying device (54) is located between the boring bar removal device (52) and the boring bar placement device (53). The boring bar conveying device (54) is provided with a suction part.

2. The internal boring machine according to claim 1, characterized in that: The positioning part includes an active support plate (4) and a passive support plate (5). The active support plate (4) is mounted on the driving device and rotates synchronously with it. The passive support plate (5) is rotatably mounted on the clamping device. Both the active support plate (4) and the passive support plate (5) are provided with through holes, and the inner end of the active support plate (4) and the inner end of the passive support plate (5) are provided with positioning ports with an inner diameter larger than the outer inner diameter.

3. The internal boring machine according to claim 1, characterized in that: The feeding device includes a feed motor (9), a feed seat (8) and a feed screw (10). The feed seat (8) is threadedly connected to the feed screw (10), the feed motor (9) is connected to the feed screw (10), and the boring bar (7) is mounted on the feed seat (8).

4. The internal boring machine according to claim 1, characterized in that: The boring tool conveying device (54) includes a conveying motor, a synchronous belt (14) and a conveying frame (16). The conveying motor is connected to the conveying frame (16) through the synchronous belt (14) and drives the conveying frame (16) to move back and forth between the boring tool take-out device (52) and the boring tool placement device (53). The suction part is installed at the bottom of the conveying frame (16).

5. The internal boring machine according to claim 1, characterized in that: It also includes a lifting device, which is installed on the boring tool conveying device (54), and the suction part is installed on the lifting device.

6. The internal boring machine according to claim 1 or 5, characterized in that: The suction unit is an electromagnet (18) installed on the boring tool transport device (54).

7. The internal boring machine according to claim 1, characterized in that: The drive device includes a spindle box (3) and a drive motor. The drive motor is connected to the input shaft of the spindle box (3), and a positioning part is provided on the spindle of the spindle box (3).

8. The internal boring machine according to claim 1, characterized in that: The clamping device includes a clamping seat (6) and a clamping hydraulic cylinder. The through hole is provided on the clamping seat (6), and the piston rod of the clamping hydraulic cylinder is connected to the clamping seat (6).

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