A self-driven chip removal device with tapered gear linkage and double cutters for precision boring

Abstract

The present invention relates to the field of boring machine processing, and specifically discloses a self-driven chip removal device with a tapered gear linkage and double cutters for precision boring, comprising: a boring part, a driving mechanism and a workbench, the boring part comprising a boring bar and a boring cutter, the boring cutter being connected to the boring bar, and also comprising a shearing mechanism, the shearing mechanism comprising a mounting part, a shearing part and a driving part, the mounting part and the driving part being both connected to the boring bar, the shearing part being connected inside the mounting part, the shearing part comprising a tapered gear linkage structure and two cutters, the two cutters being both connected to the tapered gear linkage structure, the two cutters being both located on one side of the mounting part close to the boring cutter, the tapered gear linkage structure being driven to operate by the driving part when the boring bar rotates, and the tapered gear linkage structure being driven to rotate in opposite directions; the self-driven chip removal device with a tapered gear linkage and double cutters for precision boring of the present invention can shear strip-shaped waste material cut during boring by means of the two cutters rotating in opposite directions, shorten the length of the strip-shaped waste material, and prevent the strip-shaped waste material from being wrapped around the boring bar.

Description

Technical Field

[0001] The invention relates to the field of boring machine processing, and in particular to a self-driven chip removal device with tapered gear linkage and double cutters for precision boring. Background Art

[0002] Boring is a process of precision machining the inner hole of a workpiece by using a boring tool. It is widely used in mechanical manufacturing, mold manufacturing, aerospace and other fields. With the continuous improvement of modern industry's requirements for part accuracy and surface quality, boring technology occupies an important position in high-precision hole processing. When boring large-diameter mounting holes of workpieces, in order to avoid excessive linear speed of the boring tool, which will lead to increased cutting force and may cause machine vibration or increased tool wear, the boring tool is usually set to rotate slowly.

[0003] The Chinese patent document with publication number CN114700768B discloses a transmission case boring device, comprising: a frame, and also comprising: an eccentric boring part, the eccentric boring part being slidably arranged on the frame; a boring support part, the boring support part being installed on the eccentric boring part; and a positioning and holding part, the positioning and holding part being installed on both sides of the feed of the eccentric boring part; the positioning and holding part is positioned along the boring direction to the inner and outer sides of the transmission case shaft hole, and the boring support part supports the eccentric boring part along the positioning and holding part to the shaft hole for boring.

[0004] During the process of precision boring of the switching cutter head and entering the shaft hole from the shaft hole, the guide seat guided by the guide piece on the tensioning assembly is bored and guided along the central axis direction of the shaft hole, and the top contact assembly is arranged circumferentially on the positioning cylinder. When the switching cutter head rotates, it will be supported by the top contact assembly to realize boring work based on the roundness of the inner wall of the positioning cylinder, and after entering the shaft hole, the top contact assembly will follow the switching cutter head to move into the shaft hole after the roundness treatment of the first boring, and support the subsequent boring process based on the roundness of the inner wall after precision boring.

[0005] However, the above patent document still has the following deficiencies: when a boring tool is used to bore a mounting hole on a workpiece, the boring tool is driven to move along the axial direction of the mounting hole by a retractable boring bar, and at the same time, the boring bar drives the boring tool to rotate along the axial direction of the boring bar and cuts off the waste material in the mounting hole. At this time, the cut waste material is in the form of strips and is relatively long. As the boring bar rotates, the strip-shaped waste material is easily entangled on the boring bar and driven to rotate by the boring bar, which easily causes friction or scratches between the waste material and the inner wall of the mounting hole, thereby causing scratches or pits on the processed surface of the mounting hole. Summary of the Invention

[0006] The present invention provides a self-driven chip removal device with tapered gear linkage and double cutters for precision boring, aiming to solve the problem in the related art that strip-shaped waste is driven to rotate by the boring bar and causes friction or scraping between the strip-shaped waste and the inner wall of the mounting hole, thereby causing scratches or pits on the processed surface of the mounting hole.

[0007] The invention provides a self-driven chip removal device for a precision boring hole using a bevel gear linkage double cutter, comprising a boring part, a driving mechanism and a workbench, the boring part comprising a boring bar and a boring cutter, the boring cutter being connected to the boring bar, the boring bar being connected to the driving mechanism for driving the boring bar to rotate and move along its own axial direction, and also comprising a shearing mechanism, the shearing mechanism comprising a support part, a mounting part, a shearing part and a driving part, the mounting part and the driving part are both connected to the support part, the support part is connected to the boring bar, the shearing part is connected in the mounting part, the shearing part comprises a bevel gear linkage structure and two cutters, the two cutters are both connected to the bevel gear linkage structure, the two cutters are both located on one side of the mounting part close to the boring cutter, when the boring bar rotates, the driving part drives the bevel gear linkage structure to operate, and the bevel gear linkage structure drives the two cutters to rotate in opposite directions and shear the cut strip waste, and when the driving part operates, wind force can be generated in the support part to suck the sheared waste into the support part for discharge.

[0008] Beneficial effect: When boring the mounting hole of the workpiece, the driving mechanism drives the boring bar to move until the boring bar and the mounting hole are coaxially arranged, and then the driving mechanism continues to drive the boring bar to rotate and move along its own axis, thereby driving the boring cutter to rotate and move along the axis of the boring bar, so that the boring cutter performs a boring operation on the mounting hole and cuts off a strip of waste from the mounting hole. When the boring bar rotates and moves along its own axis, the driving member drives the bevel gear linkage structure to operate, so that the bevel gear linkage structure drives the two cutting The cutter rotates in the opposite direction. During the process of the boring cutter rotating and moving along the axis of the boring bar, the two counter-rotating cutters shear the strip waste cut from the mounting hole, shortening the length of the strip waste, avoiding friction or scratching between the strip waste and the inner wall of the mounting hole after the strip waste is too long and wrapped around the boring bar, thereby avoiding scratches or pits on the machined surface of the mounting hole. The wind force generated in the support when the driving member is running can suck the cut strip waste into the support and discharge it outward from the support.

[0009] Preferably, the support member includes channel 1 and channel 2, both of which are connected to the boring bar, and channel 1 and channel 2 are communicated.

[0010] Preferably, the mounting part includes a mounting frame, an internal threaded barrel and a threaded rod, the mounting frame is inserted into channel one, the shearing piece is connected in the mounting frame, the internal threaded barrel is rotatably connected to channel one, the threaded rod is connected to the mounting frame, and the end of the threaded rod away from the mounting frame is threadedly connected to the internal threaded barrel.

[0011] The effect is that driving the internal threaded barrel to rotate can drive the threaded rod and the mounting frame to move in the radial direction of the boring bar, thereby driving the shearing piece to move in the radial direction of the boring bar, and then adjusting the distance between the two cutters and the inner wall of the mounting hole, so that the shearing piece can shear the strip waste cut off.

[0012] Preferably, the bevel gear linkage structure includes rotating shaft 1, rotating drum, rotating shaft 2, bevel gear 1, bevel gear 2 and bevel gear 3. Rotating shaft 1 and rotating drum are both rotatably connected in the installation frame. Rotating shaft 1 and rotating drum are coaxially arranged. Rotating shaft 1 is connected to the driving member. The two cutters are respectively connected to rotating shaft 1 and rotating drum. Rotating shaft 2 is rotatably connected in the installation frame. Bevel gear 1 is connected to rotating shaft 1, bevel gear 2 is connected to rotating drum, bevel gear 3 is connected to rotating shaft 2, and bevel gear 1 and bevel gear 2 are both meshed with bevel gear 3.

[0013] The effect is that when the driving member is running, it can drive the rotating shaft 1 to rotate, and when the rotating shaft 1 rotates, it drives the bevel gear 1 and the bevel gear 3 to engage and transmit, and the bevel gear 3 and the bevel gear 2 to engage and transmit, thereby driving the rotating drum and the rotating shaft 1 to rotate in the opposite direction, thereby providing power for the reverse rotation of the two cutters.

[0014] Preferably, the driving member includes a rotating part, an inner gear ring, a connecting part, a movable part, a spur gear, an insertion rod and a universal joint. The rotating part is rotatably connected to channel two, the rotating part and the boring bar are arranged in parallel, the inner gear ring is connected to the driving mechanism through the connecting part, the inner gear ring and the boring bar are coaxially arranged, the movable part is limitedly slidably connected to the inner gear ring, the spur gear is rotatably connected to the movable part, the end of the rotating part close to the spur gear is connected with the insertion rod, the insertion rod is limitedly inserted into the spur gear, and the rotating part is connected to the rotating shaft one through a universal joint.

[0015] The effect is that when the boring bar rotates, it can drive the rotating part to move along a circular trajectory with the axis of the boring bar as the center, and drive the insertion rod and the flat gear to move along the circular trajectory, so that the flat gear and the internal gear ring engage and transmit, and drive the insertion rod and the rotating part to rotate. When the rotating part rotates, the universal joint drives the rotating shaft to rotate, thereby providing power for the operation of the bevel gear linkage structure.

[0016] Preferably, fan blades are connected to the outer side of the rotating part.

[0017] The effect is that when the rotating part rotates, the fan blades can generate wind in the channel one and the channel two, thereby sucking the sheared strip waste into the channel two for centralized collection.

[0018] Preferably, an exhaust port is provided on the second channel, and a shielding net is installed in the exhaust port.

[0019] The effect is that when the fan blades rotate to generate wind, the air in channel one and channel two can be discharged outward through the exhaust port, and the strip waste entering channel two can be blocked by the shielding net to prevent the strip waste from being discharged outward from the exhaust port.

[0020] Preferably, the cross section of the second channel is in an I-shape.

[0021] Preferably, a sealing ring is provided on the outside of the second channel, a discharge port is provided on the outside of the sealing ring, a blocking portion is slidingly connected to the outside of the sealing ring, and an elastic portion is connected between the blocking portion and the sealing ring.

[0022] The effect is that the sealing ring can seal the outside of channel two so that the strip waste can be collected in channel two. After the boring operation is completed, the sealing ring can be rotated so that the discharge port on the sealing ring faces downward. At this time, the sealing part is pushed to open the discharge port, so that the strip waste in channel two can be discharged in a concentrated manner.

[0023] Preferably, a handle is connected to the outer side of the sealing ring.

[0024] The beneficial effects of the present invention are:

[0025] 1. When the boring bar drives the boring cutter to bore the mounting hole on the workpiece, the boring cutter cuts a strip of waste material in the mounting hole. The driving member drives the bevel gear linkage structure to operate, so that the bevel gear linkage structure drives the two cutters to rotate in opposite directions. At this time, the two counter-rotating cutters shear the cut strip of waste material to shorten the length of the strip of waste material, so as to avoid the strip of waste material being too long and being wrapped around the boring bar and causing friction or scratches between the inner wall of the mounting hole, thereby avoiding scratches or pits on the processed surface of the mounting hole.

[0026] 2. By driving the internal threaded barrel to rotate, the threaded rod and the mounting frame can be driven to move in the radial direction of the boring bar, thereby driving the shearing piece to move in the radial direction of the boring bar, and then adjusting the distance between the two cutters and the inner wall of the mounting hole, so that the shearing piece can shear the strip waste cut off.

[0027] 3. When the driving member is running, the rotating part drives the fan blades to rotate, so that wind force is generated in channel one and channel two, thereby sucking the sheared strip waste into channel two for centralized collection.

[0028] 4. After the boring operation is completed, the sealing ring is rotated so that the discharge port on the sealing ring faces downward. At this time, the blocking part is pushed to open the discharge port to facilitate the centralized discharge of the strip waste in channel 2. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0030] Figure 2 It is a structural schematic diagram of the boring part and the driving mechanism of the present invention.

[0031] Figure 3 It is a structural schematic diagram of the boring part and shearing mechanism of the present invention.

[0032] Figure 4 It is a schematic cross-sectional structural diagram of the shearing mechanism of the present invention.

[0033] Figure 5 It is a schematic diagram of the cross-sectional structure of the support member of the present invention.

[0034] Figure 6 It is a structural schematic diagram of the support member and the driving member of the present invention.

[0035] Figure 7 It is a structural schematic diagram of the support member, driving member and mounting member of the present invention.

[0036] Figure 8 It is a structural schematic diagram of the driving member of the present invention.

[0037] Figure 9 It is a three-dimensional structural diagram of the shearing member and the driving member of the present invention.

[0038] Figure 10 It is a schematic diagram of the three-dimensional structure of the workbench of the present invention.

[0039] Reference numerals:

[0040] 1. Boring member; 11. Boring bar; 12. Boring tool; 2. Driving mechanism; 21. Driving member 1; 22. Driving member 2; 3. Workbench; 31. Support seat 1; 32. Support seat 2; 33. Mounting seat; 34. Moving seat; 35. Locking member 1; 36. Locking member 2; 4. Shearing mechanism; 41. Support member; 411. Channel 1; 412. Channel 2; 413. Sealing ring; 414. Discharge port; 415. Blocking part; 416. Elastic part; 417. Handle; 418. Exhaust port; 4 19. Shielding net; 42. Mounting part; 421. Mounting frame; 422. Internally threaded cylinder; 423. Threaded rod; 43. Shearing part; 431. Rotating shaft 1; 432. Rotating cylinder; 433. Rotating shaft 2; 434. Bevel gear 1; 435. Bevel gear 2; 436. Cutter; 437. Bevel gear 3; 44. Driving part; 441. Rotating part; 442. Internal gear ring; 443. Connecting part; 444. Moving part; 445. Flat gear; 446. Insert rod; 447. Universal joint; 448. Fan blade. DETAILED DESCRIPTION

[0041] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0042] like Figures 1 to 9 As shown, the self-driven chip removal device with tapered gear linkage and double cutters for precision boring of the present invention comprises a boring part 1, a driving mechanism 2, a workbench 3 and a shearing mechanism 4. The boring part 1 is used to bore the mounting holes on the workpiece. The boring part 1 is connected to the driving mechanism 2. The driving mechanism 2 is used to provide power for the operation of the boring part 1. The workbench 3 is used to support and fix the workpiece. The shearing mechanism 4 is connected between the boring part 1 and the driving mechanism 2. The shearing mechanism 4 can shear the strip waste generated during boring to shorten the length of the strip waste, avoid friction or scratches between the strip waste and the inner wall of the mounting hole after the strip waste is too long and is wrapped around the boring part 1, thereby avoiding scratches or pits on the processed surface of the mounting hole.

[0043] like Figure 1 and Figure 2 As shown, the boring part 1 includes a boring bar 11 and a boring tool 12. The boring tool 12 is connected to the boring bar 11. The boring bar 11 can rotate and extend, thereby driving the boring tool 12 to rotate and move along the axial direction of the mounting hole, thereby boring the mounting hole. The driving mechanism 2 includes a driving member 1 21 and a driving member 2 22. The driving member 2 22 is connected to the driving member 1 21. The boring bar 11 is connected to the driving member 2 22. The driving member 2 22 can provide power for the rotation and extension of the boring bar 11. The driving member 1 21 can drive the driving member 2 22 to move up and down, so that the driving member 2 22 drives the boring bar 11 to move up and down, thereby making the boring bar 11 coaxially arranged with the mounting hole, so as to facilitate the subsequent boring operation of the mounting hole through the boring tool 12.

[0044] After the workpiece is placed and fixed on the workbench 3, the driving member 1 21 is started to drive the driving member 2 22 and the boring member 1 to move up and down, so that the boring bar 11 on the boring member 1 is coaxially arranged with the mounting hole on the workpiece, and the driving member 2 22 is started to drive the boring bar 11 and the boring tool 12 to rotate. At the same time, the driving member 2 22 drives the boring bar 11 to extend, so as to drive the boring tool 12 to move along the axial direction of the mounting hole, thereby boring the mounting hole through the boring tool 12.

[0045] like Figure 1 and Figure 10As shown, the workbench 3 includes a support seat 1 31, a support seat 2 32, a mounting seat 33, a movable seat 34, a locking piece 1 35 and a locking piece 2 36. The mounting seat 33 is connected to the support seat 1 31, and the bottom of the mounting seat 33 is rollingly connected to the top of the support seat 2 32. The movable seat 34 is installed on the mounting seat 33 for supporting the workpiece. The movable seat 34 can move along the length direction of the mounting seat 33 so as to align the mounting hole on the workpiece with the boring piece 1. The locking piece 1 35 is connected to the movable seat 34, and the movable seat 34 can be locked to the mounting seat 33 through the locking piece 1 35. The locking piece 2 36 is connected to the movable seat 34, and the workpiece can be locked to the movable seat 34 through the locking piece 2 36 to ensure stability when boring the workpiece.

[0046] The movable seat 34 and the mounting seat 33 are slidably matched to perform shift processing on the workpiece to increase the processing stroke of the boring machine, adapt to more processing conditions, reduce processing costs, and at the same time reduce the processing time occupied by the gantry milling equipment, making the workshop production arrangement more flexible, improving the set output rate, and shortening the delivery cycle.

[0047] like Figure 1 、 Figures 3 to 9 As shown, the shearing mechanism 4 includes a support member 41, a mounting member 42, a shearing member 43 and a driving member 44. The support member 41 is connected to the boring bar 11, the mounting member 42 is connected to the support member 41, and the shearing member 43 is connected to the mounting member 42. The mounting member 42 can adjust the distance between the shearing member 43 and the inner wall of the mounting hole so that the cut strip waste can be sheared by the shearing member 43. The driving member 44 is connected between the support member 41 and the driving member 22. The driving member 44 is connected to the shearing member 43. When the boring bar 11 rotates, it can drive the driving member 44 to operate. When the driving member 44 operates, it drives the shearing member 43 to operate and shears the cut strip waste through the shearing member 43, shortening the length of the strip waste and preventing the strip waste from being entangled on the boring bar 11. At the same time, when the driving member 44 operates, it can generate wind force and suck the sheared strip waste into the support member 41, and the sheared strip waste is collected by the support member 41.

[0048] Continue to refer Figure 1 、 Figures 3 to 9As shown, the support member 41 includes a channel 1 411, a channel 2 412, a sealing ring 413, a blocking portion 415, an elastic portion 416, a handle 417 and a shielding net 419. The channel 1 411 and the channel 2 412 are both connected to the boring bar 11. The channel 1 411 and the channel 2 412 are connected. The cross-section of the channel 2 412 is in the shape of an I-beam. The sealing ring 413 is rotatably connected to the outer side of the channel 2 412 for sealing the channel 2 412. A discharge port 414 is provided on the outer side of the sealing ring 413 for centralized discharge of strip-shaped waste entering the channel 2 412. The outer side of the sealing ring 413 is limitedly slidably connected with a blocking portion 415 for blocking the discharge port 414 on the outer side of the sealing ring 413 to prevent the strip-shaped waste from being thrown out of the discharge port 414 when the channel 2 412 rotates. The elastic part 416 is connected between the blocking part 415 and the sealing ring 413. The elastic part 416 is a compression spring, which is used to provide resistance to the movement of the blocking part 415 so that the blocking part 415 can block the discharge port 414. The handle 417 is connected to the outside of the sealing ring 413 to facilitate the staff to pull the sealing ring 413 to rotate, so that the discharge port 414 faces downward. An exhaust port 418 is provided on the second channel 412, which is used to discharge the air in the first channel 411 and the second channel 412 to the outside when the driving member 44 generates wind force, so that the sheared strip waste can pass through the first channel 411 into the second channel 412. The shielding net 419 is connected to the exhaust port 418 to prevent the strip waste from being discharged to the outside from the exhaust port 418, so as to facilitate the centralized discharge of the strip waste.

[0049] The boring bar 11 rotates to drive the boring tool 12 to bore the mounting hole and cut the strip waste. When the boring bar 11 rotates, it drives the driving member 44 to run. When the driving member 44 runs, it drives the shearing member 43 to shear the cut strip waste to shorten the length of the strip waste. When the driving member 44 runs, it generates wind force, which sucks the cut strip waste into channel 1 411 through the wind force and moves it to channel 2 412 for centralized collection.

[0050] After the mounting hole of the workpiece is bored, the boring rod 11 is controlled by the second driving member 22 to retract until the boring tool 12 is completely separated from the mounting hole. Then the second driving member 22 is closed, and the boring rod 11 stops rotating and extending. At this time, the handle 417 is pulled to rotate the sealing ring 413 until the discharge port 414 on the sealing ring 413 faces downward. Finally, the blocking part 415 is pulled to slide on the sealing ring 413, and the elastic part 416 is compressed so that the blocking part 415 no longer blocks the discharge port 414, so that the strip waste in the second channel 412 can be discharged outward from the discharge port 414 to facilitate the collection of the strip waste.

[0051] Continue to refer Figure 1 、 Figures 3 to 9As shown, the mounting member 42 includes a mounting frame 421, an internal threaded barrel 422 and a threaded rod 423. The mounting frame 421 is inserted into the channel 1 411, and the mounting frame 421 is communicated with the channel 1 411. The shearing member 43 is connected in the mounting frame 421, the internal threaded barrel 422 is rotatably connected to the channel 1 411, and the threaded rod 423 is connected to the mounting frame 421. The end of the threaded rod 423 away from the mounting frame 421 is threadedly connected to the internal threaded barrel 422. By driving the internal threaded barrel 422 to rotate, the threaded rod 423 and the mounting frame 421 can be driven to move in the radial direction of the boring bar 11, thereby driving the shearing member 43 to move in the radial direction of the boring bar 11, and then adjusting the distance between the shearing member 43 and the inner wall of the mounting hole, so that the shearing member 43 can shear the cut strip waste material to shorten the length of the strip waste material and prevent the strip waste material from being wrapped around the boring bar 11.

[0052] Continue to refer Figure 1 、 Figures 3 to 9 As shown, the shearing member 43 includes a bevel gear linkage structure and two cutters 436. The bevel gear linkage structure is connected to the driving member 44. When the driving member 44 is running, it can drive the bevel gear linkage structure to operate, so that the bevel gear linkage structure drives the two cutters 436 to rotate in opposite directions, thereby shearing the strip waste cut by the boring tool 12. The bevel gear linkage structure includes a rotating shaft 431, a rotating drum 432, a rotating shaft 2 433, a bevel gear 1 434, a bevel gear 2 435 and a bevel gear 3 437. The rotating shaft 1 431 and the rotating drum 432 are both rotatably connected in the mounting frame 421. The rotating shaft 1 431 passes through the rotating drum 432, and the rotating shaft 1 431 and the rotating drum 432 are coaxially arranged. The rotating shaft 1 431 is connected to the driving member 44, and the two cutters 436 are respectively connected to the rotating shaft 1 4 31 and the rotating drum 432, the rotating shaft 2 433 is rotatably connected in the mounting frame 421, the rotating shaft 2 433 and the rotating shaft 1 431 are perpendicular to each other, the bevel gear 1 434 is connected to the rotating shaft 1 431, the bevel gear 2 435 is connected to the rotating drum 432, and the bevel gear 3 437 is connected to the rotating shaft 2 433, the bevel gear 1 434 and the bevel gear 2 435 are respectively located on both sides of the bevel gear 3 437, and the bevel gear 1 434 and the bevel gear 2 435 are both meshed and connected with the bevel gear 3 437, so that when the bevel gear linkage structure is running, the transmission between the bevel gear 3 437, the bevel gear 1 434 and the bevel gear 2 435 can make the rotating shaft 1 431 and the rotating drum 432 rotate in opposite directions, thereby providing power for the reverse rotation of the two cutters 436.

[0053] When the driving member 44 is in operation, it can drive the rotating shaft 1 431 to rotate. When the rotating shaft 1 431 rotates, it drives the bevel gear 1 434 to engage with the bevel gear 3 437 for transmission, and the bevel gear 3 437 to engage with the bevel gear 2 435 for transmission, thereby driving the rotating drum 432 and the rotating shaft 1 431 to rotate in the opposite direction. When the rotating drum 432 and the rotating shaft 1 431 rotate in the opposite direction, it drives the two cutters 436 to rotate in the opposite direction. The two cutters 436 rotating in the opposite direction shear the strip waste cut by the boring tool 12 to shorten the length of the strip waste, thereby preventing the strip waste from being wrapped around the boring bar 11.

[0054] Continue to refer Figure 1 、 Figures 3 to 9 As shown, the driving member 44 includes a rotating portion 441, an inner gear ring 442, a connecting portion 443, a moving portion 444, a flat gear 445, an insert rod 446, a universal joint 447 and a fan blade 448. The rotating portion 441 is rotatably connected to the second channel 412. The rotating portion 441 is arranged parallel to the boring bar 11. The inner gear ring 442 is connected to the housing of the driving member 22 through the connecting portion 443. The inner gear ring 442 is coaxially arranged with the boring bar 11. The moving portion 444 is limitedly slidably connected to the inner gear ring 442, and the moving portion 444 can move circumferentially along the axis of the inner gear ring 442. The flat gear 445 is rotatably connected to the moving portion 444. The end of the rotating portion 441 close to the flat gear 445 is connected to the insert rod 4 46. ​​The insertion rod 446 is limitedly plugged into the flat gear 445 so that the flat gear 445 can drive the insertion rod 446 to rotate when it rotates. The fan blades 448 are set to three, and the three fan blades 448 are all connected to the rotating part 441. The three fan blades 448 are all located in the second channel 412. When the rotating part 441 rotates, wind force can be generated by the three fan blades 448, thereby sucking the sheared strip waste into the second channel 412, so as to facilitate the centralized discharge of the strip waste. The end of the rotating part 441 close to the boring tool 12 is connected to the rotating shaft 1 431 through the universal joint 447, so that when the rotating part 441 rotates, the universal joint 447 can drive the rotating shaft 1 431 to rotate, thereby providing power for the operation of the shearing piece 43.

[0055] When the boring bar 11 rotates, the channel 2 412 drives the rotating part 441, the insert rod 446 and the flat gear 445 to move along a circular trajectory, and drives the moving part 444 to move along a circular trajectory on the inner gear ring 442. At the same time, the flat gear 445 engages with the inner gear ring 442 to drive the flat gear 445 to drive the insert rod 446 and the rotating part 441 to rotate. When the rotating part 441 rotates, the universal joint 447 drives the rotating shaft 1 431 to rotate, thereby providing power for the operation of the shearing piece 43, and the shearing piece 43 shears the strip waste cut by the boring tool 12 when boring the hole, shortening the The length of the strip waste is to prevent the strip waste from being entangled on the boring bar 11. At the same time, the rotation of the rotating part 441 drives the three fan blades 448 to rotate to generate wind force, and then the sheared strip waste is sucked into the second channel 412. When the boring bar 11 moves along its own axial direction, it drives the support member 41 to move, so that the rotating part 441 drives the insertion rod 446 to move along the axial direction of the boring bar 11. At this time, the insertion rod 446 is still limitedly plugged into the flat gear 445, so that when the flat gear 445 is engaged with the inner gear ring 442 for transmission, it still drives the insertion rod 446 and the rotating part 441 to rotate.

[0056] Working principle:

[0057] After the workpiece is placed and fixed on the workbench 3, the driving member 1 21 is started to drive the driving member 2 22 and the boring member 1 to move up and down, so that the boring rod 11 on the boring member 1 is coaxially arranged with the mounting hole on the workpiece. By driving the internal threaded cylinder 422 to rotate, the threaded rod 423 and the mounting frame 421 can be driven to move in the radial direction of the boring rod 11, thereby driving the shearing member 43 to move in the radial direction of the boring rod 11, and then adjusting the distance between the shearing member 43 and the inner wall of the mounting hole.

[0058] The second driving member 22 is started to drive the boring bar 11 and the boring tool 12 to rotate. At the same time, the second driving member 22 drives the boring bar 11 to extend, so as to drive the boring tool 12 to move along the axial direction of the mounting hole, thereby boring the mounting hole through the boring tool 12.

[0059] When the boring bar 11 rotates, the channel 2 412 drives the rotating part 441, the insertion rod 446 and the flat gear 445 to move along a circular trajectory. At the same time, the flat gear 445 engages with the inner gear ring 442 for transmission, so that the flat gear 445 drives the insertion rod 446 and the rotating part 441 to rotate. When the rotating part 441 rotates, it drives the rotating shaft 1 431 to rotate through the universal joint 447.

[0060] When the boring bar 11 moves along its own axial direction, it drives the support member 41 to move, so that the rotating part 441 drives the insertion rod 446 to move along the axial direction of the boring bar 11. At this time, the insertion rod 446 is still limitedly plugged into the flat gear 445, so that when the flat gear 445 is engaged with the inner gear ring 442 for transmission, it still drives the insertion rod 446 and the rotating part 441 to rotate.

[0061] When the rotating shaft 431 rotates, the bevel gear 1 434 is driven to engage with the bevel gear 3 437 for transmission, and the bevel gear 3 437 is driven to engage with the bevel gear 2 435 for transmission, thereby driving the rotating drum 432 and the rotating shaft 1 431 to rotate in the opposite direction. When the rotating drum 432 and the rotating shaft 1 431 rotate in the opposite direction, the two cutters 436 are driven to rotate in the opposite direction, and the two cutters 436 rotating in the opposite direction shear the strip waste cut by the boring tool 12.

[0062] The rotation of the rotating portion 441 drives the three fan blades 448 to rotate, thereby generating wind force and sucking the sheared strip waste into the second channel 412 .

[0063] After the mounting hole of the workpiece is bored, the boring rod 11 is controlled by the second driving member 22 to retract until the boring tool 12 is completely separated from the mounting hole. Then the second driving member 22 is closed, and the boring rod 11 stops rotating and extending. At this time, the handle 417 is pulled to rotate the sealing ring 413 until the discharge port 414 on the sealing ring 413 faces downward. Finally, the blocking part 415 is pulled to slide on the sealing ring 413 and the elastic part 416 is compressed so that the blocking part 415 no longer blocks the discharge port 414, so that the strip waste in the second channel 412 can be discharged outward from the discharge port 414.

[0064] Although the embodiments of the present invention have been shown and described above, it will be understood that the above embodiments are illustrative and are not to be construed as limitations on the present invention. A person skilled in the art may change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A self-driven chip removal device with tapered gear linkage and double cutters for precision boring, comprising a boring part, a drive mechanism and a workbench, wherein the boring part comprises a boring bar and a boring cutter, the boring cutter being connected to the boring bar, and the boring bar being connected to the drive mechanism for driving the boring bar to rotate and move along its own axis, characterized in that: The machine also includes a shearing mechanism, which includes a support member, a mounting member, a shearing member, and a driving member. The mounting member and the driving member are both connected to the support member, the support member is connected to the boring bar, and the shearing member is connected inside the mounting member. The shearing member includes a bevel gear linkage structure and two cutters. The two cutters are both connected to the bevel gear linkage structure. The two cutters are both located on one side of the mounting member close to the boring bar. When the boring bar rotates, the driving member drives the bevel gear linkage structure to operate, and the bevel gear linkage structure drives the two cutters to rotate in opposite directions and shear the cut strip waste. When the driving member operates, it can generate wind force inside the support member to suck the sheared waste into the support member for discharge. The support member includes channel 1 and channel 2, both of which are connected to the boring bar, and are communicated with each other. The mounting member includes a mounting frame, an internally threaded barrel, and a threaded rod. The mounting frame is plugged into channel 1, the shearing member is connected to the mounting frame, the internally threaded barrel is rotatably connected to channel 1, the threaded rod is connected to the mounting frame, and one end of the threaded rod away from the mounting frame is threadedly connected to the internally threaded barrel. The bevel gear linkage structure includes a rotating shaft 1, a rotating drum, a rotating shaft 2, a bevel gear 1, a bevel gear 2 and a bevel gear 3. The rotating shaft 1 and the rotating drum are both rotatably connected in the installation frame. The rotating shaft 1 and the rotating drum are coaxially arranged. The rotating shaft 1 is connected to the driving member. The two cutters are respectively connected to the rotating shaft 1 and the rotating drum. The rotating shaft 2 is rotatably connected in the installation frame. The bevel gear 1 is connected to the rotating shaft 1, the bevel gear 2 is connected to the rotating drum, and the bevel gear 3 is connected to the rotating shaft 2. The bevel gear 1 and the bevel gear 2 are both meshed with the bevel gear 3. The driving member includes a rotating part, an inner gear ring, a connecting part, a movable part, a spur gear, an insertion rod and a universal joint. The rotating part is rotatably connected to channel 2, and the rotating part and the boring bar are arranged in parallel. The inner gear ring is connected to the driving mechanism through the connecting part. The inner gear ring and the boring bar are coaxially arranged. The movable part is limitedly slidably connected to the inner gear ring, and the spur gear is rotatably connected to the movable part. The end of the rotating part close to the spur gear is connected with the insertion rod, and the insertion rod is limitedly inserted into the spur gear. The rotating part is connected to the rotating shaft 1 through a universal joint.

2. The self-propelled chip removal device with tapered gear linkage and double cutters for precision boring according to claim 1 is characterized in that: The outer side of the rotating part is connected with fan blades.

3. The self-propelled chip removal device with tapered gear linkage and double cutters for precision boring according to claim 2, characterized in that: An exhaust port is provided on the second channel, and a shielding net is installed in the exhaust port.

4. The self-propelled chip removal device with tapered gear linkage and double cutters for precision boring according to claim 3, characterized in that: The cross section of the second channel is in an I-shape.

5. The self-propelled chip removal device with tapered gear linkage and double cutters for precision boring according to claim 4, characterized in that: A sealing ring is provided on the outer side of the second channel, a discharge port is provided on the outer side of the sealing ring, a blocking portion is slidingly connected to the outer side of the sealing ring, and an elastic portion is connected between the blocking portion and the sealing ring.

6. The self-propelled chip removal device with tapered gear linkage and double cutters for precision boring according to claim 5, characterized in that: The outer side of the sealing ring is connected with a handle.

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