CN113020719B

CN113020719B - Six-axis numerical control gear hobbing machine

Info

Publication number: CN113020719B
Application number: CN202110305879.0A
Authority: CN
Inventors: 张天一; 王立涛; 吕仁祥; 李传旺
Original assignee: Laiwu Tailong Gear Co ltd
Current assignee: Laiwu Tailong Gear Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2022-04-22
Anticipated expiration: 2041-03-23
Also published as: CN113020719A

Abstract

The application relates to a six-axis numerical control gear hobbing machine, which comprises a rack and a placing device arranged on the rack; the processing device comprises a first block connected in the first sliding groove in a sliding manner and a first adjusting assembly connected with the first block; the first block is provided with a second sliding groove, the second block is arranged in the second sliding groove, and the second adjusting component is connected with the second block; the third block is arranged on the second block and is connected with a third adjusting component; the third block is provided with a third sliding chute, the fourth block is arranged in the third sliding chute, and the fourth adjusting component is connected with the fourth block; the processing mechanism is arranged on the fourth block; the first block is provided with a blocking mechanism connected with the rack, the second block is provided with a blocking mechanism connected with the first block, the blocking mechanism arranged on the rack and the first block jointly cover the first chute, and the blocking mechanism arranged on the first block and the second block jointly cover the second chute. The application has the effect of reducing the influence on workpiece machining.

Description

Six-axis numerical control gear hobbing machine

Technical Field

The application relates to the technical field of gear machining equipment, in particular to a six-axis numerical control gear hobbing machine.

Background

The hobbing machine is one of the most widely used gear cutting machines, and can cut straight teeth, helical cylindrical gears, worm gears, chain wheels, etc.

At present, a Chinese patent with an authorization publication number of CN204035708U discloses a six-axis full-numerical-control gear hobbing machine, which comprises a machine body, wherein a small upright post with a fixed position and a large upright post which is driven by an X-axis driving mechanism to move back and forth are arranged on the machine body, a workbench is arranged between the large upright post and the small upright post, and the workbench is driven by a C-axis motor through a planetary gear reducer; the large upright post is provided with a Z-axis driving mechanism for driving the tool rest to move up and down, the Z-axis moving mechanism is further provided with an A-axis motor for driving the tool rest to deflect, the tool rest is provided with a B-axis motor, the tool rest is provided with a Y-axis moving mechanism for driving the B-axis motor to move left and right, the small upright post is provided with an outer support, and the outer support is provided with an outer support tip.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the processing cutter on the tool rest can produce chips when processing the workpiece, and some chips can splash between the large upright post and the lathe bed, so that the movement of the large upright post can be influenced when the processing cutter is positioned between the large upright post and the lathe bed, and the processing of the workpiece is influenced.

Disclosure of Invention

In order to reduce the influence to work piece processing, the application provides a six-shaft numerical control gear hobbing machine.

The application provides a six numerical control gear hobbing machine adopts following technical scheme:

a six-axis numerical control gear hobbing machine comprises a rack, a machining device and a placing device, wherein the placing device is arranged on the rack; the machining device comprises a first block, a second block, a third block, a fourth block, a first adjusting assembly, a second adjusting assembly, a third adjusting assembly, a fourth adjusting assembly, a machining mechanism and a blocking mechanism, wherein a first sliding groove is formed in the rack, the first block is connected in the first sliding groove in a sliding mode, and the first adjusting assembly is arranged on the rack and connected with the first block; the first block is provided with a second sliding groove, the second block is connected in the second sliding groove in a sliding manner, and the second adjusting assembly is arranged on the first block and is connected with the second block; the third block is rotatably connected to the second block, and the third adjusting assembly is arranged on the second block and connected with the third block; a third sliding groove is formed in the third block, the fourth block is connected in the third sliding groove in a sliding mode, and the fourth adjusting assembly is arranged on the third block and connected with the fourth block; the processing mechanism is arranged on the fourth block; the first block is provided with a blocking mechanism connected with the rack, the second block is provided with a blocking mechanism connected with the first block, the blocking mechanism arranged on the rack and the first block jointly cover the first chute, and the blocking mechanism arranged on the first block and the second block jointly cover the second chute.

By adopting the technical scheme, a workpiece to be machined is placed on the placing device, then the first adjusting assembly is started, and the first adjusting assembly drives the first block to slide in the first sliding groove on the rack; starting a second adjusting component which drives the second block to slide in the second sliding groove of the first block, and starting a third adjusting component which drives the third block to rotate relative to the second block; starting a fourth adjusting assembly, wherein the fourth adjusting assembly drives a fourth block to slide in a third sliding groove of a third block, so that a machining mechanism on the fourth block can perform gear hobbing on a workpiece on the placing device; when the first block and the second block slide, the blocking mechanism also moves, so that the blocking mechanism arranged on the frame and the first block jointly cover the first sliding groove, and the blocking mechanism arranged on the first block and the second block jointly cover the second sliding groove; the phenomenon that chips enter the first sliding groove and the second sliding groove when the machining mechanism machines the workpiece is reduced, and the influence on the movement of the first block and the second block is reduced; therefore, the processing device can reduce the influence on the processing of the workpiece.

Optionally, the blocking mechanism comprises a blocking plate, a winding shaft and a fifth adjusting assembly, the blocking plate is arranged at each of two ends of the first block and the second block, the blocking plate is composed of a plurality of connecting plates, and two adjacent connecting plates are hinged; the two ends of the rack and the two ends of the first block are both provided with the winding shafts, the connecting plate at one end of the barrier plate is connected to the first block or the second block, and the other end of the barrier plate is connected to the corresponding winding shaft; the fifth adjusting assembly comprises a third gear, a fourth gear and a fifth motor, the fifth motor is arranged on the rack and the first block, and the third gear is connected to an output shaft of the fifth motor in a key mode; the fourth gear is connected to the winding shaft in a keyed mode and meshed with the third gear.

By adopting the technical scheme, when the first block moves in the first chute of the rack, the fifth motor is started, the output shaft of the fifth motor drives the third gear to rotate, the fourth gear meshed with the third gear drives the winding shaft to rotate, so that the winding shaft at one end of the rack winds the connecting plate, the connecting plate on the winding shaft at the other end of the rack winds out on the winding shaft, and the first block and the connecting plate can keep a state of always covering the first chute; similarly, when the second block slides in the second sliding groove of the first block, the second block and the connecting plate positioned on the first block can keep a state of always covering the second sliding groove; the blocking mechanism is arranged to reduce the entering of debris into the first chute and the second chute to influence the movement of the first block and the second block.

Optionally, the winding device further comprises a reinforcing mechanism, the reinforcing mechanism comprises a reinforcing rod and a sixth adjusting assembly, a reinforcing groove is formed in the winding shaft, the reinforcing rod is arranged on each of the rack and the first block, and the reinforcing rod is clamped with the reinforcing groove; the sixth adjusting assembly comprises a sixth motor, a fifth gear and a first rack, the sixth motor is arranged on the rack and the first block, and the fifth gear is connected to an output shaft of the sixth motor in a key mode; the first rack is arranged on the reinforcing rod and meshed with the fifth gear.

By adopting the technical scheme, the sixth motor is started, the output shaft of the sixth motor drives the fifth gear to rotate, and the first rack meshed with the fifth gear drives the reinforcing rod to move, so that the reinforcing rod is clamped with or separated from the reinforcing groove on the winding shaft; the reinforcing mechanism who sets up can improve the stability of rolling axle.

Optionally, a limiting device is arranged on the rack, the limiting device includes sixth gears, a chain, a limiting rod, and a clamping mechanism, two sixth gears are arranged on both the rack and the first block, the chain is sleeved on the two sixth gears, the first block is arranged on the chain on the rack, and the second block is arranged on the chain on the first block; the limiting rod is arranged on the chain, and the connecting plate is provided with a limiting groove clamped with the limiting rod; the clamping mechanism comprises a fixed block, clamping plates, a first bidirectional screw and a seventh motor, a through hole for the connecting plate to pass through is formed in the fixed block, two grooves are formed in the side wall of the through hole, the clamping plates are connected in the two grooves in a sliding mode, and the two clamping plates are tightly abutted against the connecting plate; the first bidirectional screw is arranged on the fixed block, and the two clamping plates are respectively connected with two ends of the first bidirectional screw; the seventh motor is arranged on the fixed block and connected with the first bidirectional screw.

By adopting the technical scheme, when the first block or the second block moves, the first block or the second block drives the chain to rotate, and the limiting rod on the chain can be clamped with the limiting groove on the connecting plate or separated from the limiting groove on the connecting plate; when the first block or the second block stops moving, a seventh motor is started, an output shaft of the seventh motor drives a first bidirectional screw to rotate, and the first bidirectional screw drives the two clamping plates to move oppositely, so that the two clamping plates clamp the connecting plate positioned in the through hole; the limiting device can adjust the connecting plate when the fifth adjusting assembly cannot drive the winding shaft to rotate, so that the blocking effect of the blocking mechanism is guaranteed; and the blocking mechanism can better block the debris under the action of the limiting device.

Optionally, the placing device comprises a placing shaft, a placing disc, a limiting block and a seventh adjusting assembly, the placing shaft is rotatably connected to the frame, the placing disc is arranged on the placing shaft, and the workpiece is placed on the placing disc; the limiting block is in threaded connection with one end, far away from the rack, of the placing shaft, and the limiting block abuts against a workpiece; the seventh adjusting assembly comprises a seventh gear, an eighth gear and an eighth motor, the eighth motor is arranged on the rack, and the seventh gear is connected to an output shaft of the eighth motor in a key manner; the eighth gear is keyed on the placing shaft and is meshed with the seventh gear.

By adopting the technical scheme, the workpiece is placed on the placing disc, then the limiting block is in threaded connection with the placing shaft, and the limiting block is abutted against one end of the workpiece, which is far away from the placing disc; and starting the eighth motor, driving the seventh gear to rotate by an output shaft of the eighth motor, driving the placing shaft to rotate by the eighth gear meshed with the seventh gear, and finally realizing the rotation of the workpiece.

Optionally, the processing mechanism includes a first mounting block, a second mounting block, a processing shaft, a processing cutter, a key sleeve, a ninth motor and an eighth adjusting assembly, the first mounting block is disposed at one end of the fourth block, the ninth motor is disposed on the first mounting block, and the key sleeve is disposed on an output shaft of the ninth motor; a fourth sliding groove is formed in the fourth block, the second mounting block is connected in the fourth sliding groove in a sliding mode, and a rotating hole is formed in the second mounting block; one end of the processing shaft is connected with the key sleeve, the other end of the processing shaft is positioned in the rotating hole, and the processing cutter is arranged on the processing shaft; the eighth adjusting assembly comprises a tenth motor, a ninth gear and a second rack, the tenth motor is arranged on the second mounting block, and the ninth gear is in keyed connection with an output shaft of the tenth motor; the second rack is disposed in the fourth sliding groove and engaged with the ninth gear.

By adopting the technical scheme, one end of the processing shaft is firstly placed in the key sleeve of the first mounting block, then the tenth motor is started, the output shaft of the tenth motor drives the ninth gear to rotate, and the ninth gear is meshed with the second rack, so that when the ninth gear rotates, the ninth gear drives the second mounting block to move in the fourth chute, one end of the processing shaft, far away from the first mounting block, enters the rotary hole, the mounting of the processing shaft is finally realized, finally the ninth motor is started, the output shaft of the ninth motor drives the key sleeve to rotate, and the key sleeve drives the processing shaft to rotate; the arranged processing mechanism has a simple structure and is convenient to operate.

Optionally, a connecting mechanism is arranged on the fourth block, the connecting mechanism includes a placing plate, a fifth block, a limiting block and a connecting assembly, and the placing plate is arranged on the fourth block; the first mounting block, the fourth chute and the eighth adjusting assembly are all arranged on the fifth block, the fifth block is placed on the placing plate, and limiting grooves are formed in side walls of two sides of the fifth block; the fourth block is provided with two limiting blocks which are respectively clamped with the two limiting grooves; the connecting assembly comprises two connecting rods, a second bidirectional screw and an eleventh motor, and the two connecting rods are respectively connected with the two limiting blocks; the two connecting rods are respectively connected with two ends of the second bidirectional screw; the eleventh motor is arranged on the fourth block and is connected with the second bidirectional screw rod.

By adopting the technical scheme, the processing shaft is firstly installed on the fifth block, then the fifth block is placed on the placing plate, then the eleventh motor is started, the output shaft of the eleventh motor drives the second bidirectional screw rod to rotate, the second bidirectional screw rod drives the two connecting rods to move in opposite directions, the two limiting blocks on the two connecting rods move in opposite directions, the two limiting blocks are respectively clamped with the two limiting grooves on the fifth block, the fifth block is connected onto the fourth block, and finally the processing mechanism is connected onto the fourth block; the connecting mechanism can facilitate the installation of the processing mechanism, thereby saving time and improving efficiency.

Optionally, an adjusting mechanism is arranged on the fifth block, the adjusting mechanism includes an adjusting rod, a blocking block and a ninth adjusting assembly, a fifth chute is formed in the fifth block, the adjusting rod is connected in the fifth chute in a sliding manner, the blocking block is arranged on the adjusting rod, and the blocking block is located on one side of the processing cutter away from the workpiece; the ninth adjusting assembly comprises a twelfth motor and a fourth screw rod, and the fourth screw rod is arranged in the fifth sliding groove and is connected with the adjusting rod; the twelfth motor is arranged on the fifth block and connected with the fourth screw rod.

By adopting the technical scheme, when the machining cutter machines a workpiece, the twelfth motor is started, the output shaft of the twelfth motor drives the fourth screw rod to rotate, the fourth screw rod drives the adjusting rod to slide in the fifth sliding groove, and the blocking block on the adjusting rod can move to one end, far away from the workpiece, of the machining cutter; when the machining cutter machines the workpiece, the blocking block can block splashed scraps.

Optionally, the first adjusting assembly includes a first motor and a first screw rod, and the first screw rod is disposed in the first sliding groove and connected to the first block; the first motor is arranged on the rack and connected with the first screw rod; the second adjusting assembly comprises a second motor and a second screw rod, and the second screw rod is arranged in the second sliding groove and connected with the first block; the second motor is arranged on the first block and is connected with the second screw rod; the third adjusting assembly comprises a first gear, a second gear, a third motor and a connecting shaft, the connecting shaft is rotatably connected to the second block, and the third block is arranged at one end, far away from the second block, of the connecting shaft; the second gear is connected to the connecting shaft in a key mode; the third motor is arranged on the second block, and the first gear key is connected to an output shaft of the third motor and meshed with the second gear; the fourth adjusting assembly comprises a fourth motor and a third screw rod, and the third screw rod is arranged in the third sliding groove and connected with the fourth block; the fourth motor is arranged on the third block and is connected with the third screw rod.

By adopting the technical scheme, the first motor is started, the first motor can drive the first screw rod to rotate, and the first screw rod can drive the first block to slide in the first sliding groove by rotating; starting a second motor, wherein an output shaft of the second motor drives a second screw rod to rotate, and the second screw rod drives a second block to slide in a second sliding groove; starting a third motor, wherein an output shaft of the third motor drives a first gear to rotate, a second gear meshed with the first gear drives a connecting shaft to rotate, and the connecting shaft drives a third block to rotate; starting a fourth motor, wherein an output shaft of the fourth motor drives a third screw rod to rotate, and the third screw rod drives a fourth block to slide in a third sliding groove; the processing mechanism on the fourth block changes with the change of the position of the fourth block.

To sum up, the beneficial technical effects of the six-axis numerical control gear hobbing machine are that:

1. the arranged processing device can reduce the influence on the processing of the workpiece;

2. the limiting device can adjust the connecting plate when the fifth adjusting assembly cannot drive the winding shaft to rotate, so that the blocking effect of the blocking mechanism is guaranteed; and the blocking mechanism can better block the debris under the action of the limiting device.

Drawings

FIG. 1 is a schematic structural diagram of a six-axis numerically controlled gear hobbing machine according to an embodiment of the present application;

FIG. 2 is a schematic structural diagram of a placement device in an embodiment of the present application;

FIG. 3 is a schematic structural diagram of a first adjustment assembly in an embodiment of the present application;

FIG. 4 is a schematic structural diagram of a fourth adjustment assembly in an embodiment of the present application;

FIG. 5 is a schematic structural diagram of a third adjustment assembly in an embodiment of the present application;

FIG. 6 is a schematic structural view of a coupling mechanism according to an embodiment of the present application;

FIG. 7 is a schematic structural diagram of an eighth adjustment assembly in an embodiment of the present application;

FIG. 8 is an enlarged view of a portion of FIG. 3;

fig. 9 is a schematic structural diagram of a clamping mechanism in an embodiment of the present application.

Reference numerals: 1. a frame; 11. connecting blocks; 2. a placement device; 21. placing a shaft; 22. placing a tray; 23. a limiting block; 24. a seventh adjustment assembly; 241. a seventh gear; 242. an eighth gear; 243. an eighth motor; 3. a processing device; 31. a first block; 311. a second chute; 32. a second block; 33. a third block; 331. a third chute; 34. a fourth block; 341. a cavity; 35. a first adjustment assembly; 351. a first motor; 352. a first screw; 36. a second adjustment assembly; 361. a second motor; 362. a second screw; 37. a third adjustment assembly; 371. a first gear; 372. a second gear; 373. a third motor; 374. a connecting shaft; 38. a fourth adjustment assembly; 381. a fourth motor; 382. a third screw; 4. a blocking mechanism; 41. a connecting plate; 42. a winding shaft; 421. a reinforcing groove; 43. a fifth adjustment assembly; 431. a third gear; 432. a fourth gear; 433. a fifth motor; 5. a reinforcement mechanism; 51. a reinforcing rod; 52. a sixth adjustment assembly; 521. a sixth motor; 522. a fifth gear; 523. a first rack; 6. a confining means; 61. a sixth gear; 62. a chain; 63. a restraining bar; 64. a clamping mechanism; 641. a fixed block; 642. a clamping plate; 643. a first bidirectional screw; 644. a seventh motor; 7. a processing mechanism; 71. a first mounting block; 72. a second mounting block; 73. processing a shaft; 74. processing a cutter; 75. a ninth motor; 76. an eighth adjustment assembly; 761. a tenth motor; 762. a ninth gear; 763. a second rack; 8. a connecting mechanism; 81. a fifth block; 811. a fourth chute; 812. a fifth chute; 82. a limiting block; 83. a connecting assembly; 831. a connecting rod; 832. a second bidirectional screw; 833. an eleventh electric motor; 9. an adjustment mechanism; 91. adjusting a rod; 92. a blocking block; 93. a ninth adjustment assembly; 931. a twelfth motor; 932. and a fourth screw.

Detailed Description

The present application is described in further detail below with reference to figures 1-9.

The embodiment of the application discloses a six-axis numerical control gear hobbing machine.

Referring to fig. 1, the six-axis numerical control gear hobbing machine comprises a frame 1, wherein a connecting block 11 is fixedly connected to the frame 1, and a placing device 2 for placing a workpiece is arranged on the connecting block 11; the frame 1 is provided with a machining device 3 for machining a workpiece.

Referring to fig. 1 and 2, the placing device 2 includes a placing shaft 21 rotatably connected to the connecting block 11, a placing plate 22 is fixedly connected to an end of the placing shaft 21 away from the connecting block 11, and an end of the workpiece abuts against the placing plate 22; the end of the placing shaft 21 far away from the connecting block 11 is in threaded connection with a limiting block 23, the placing disc 22 is located between the connecting block 11 and the limiting block 23, and the limiting block 23 abuts against one end of the workpiece far away from the placing disc 22. A seventh adjusting assembly 24 is arranged on the connecting block 11, the seventh adjusting assembly 24 comprises an eighth motor 243 fixedly connected in the connecting block 11, and an output shaft of the eighth motor 243 is in keyed connection with a seventh gear 241; an eighth gear 242, which is engaged with the seventh gear 241, is keyed on the placing shaft 21.

The workpiece is placed on the placing tray 22, and then the defining block 23 is screwed to the placing shaft 21, and the defining block 23 is pressed against an end of the workpiece remote from the placing tray 22. When the eighth motor 243 is started, the output shaft of the eighth motor 243 drives the seventh gear 241 to rotate, and the eighth gear 242 meshed with the seventh gear 241 drives the placing shaft 21 to rotate, so that the rotation of the workpiece can be finally realized.

Referring to fig. 1 and 3, a first sliding groove is formed in the frame 1, and the processing device 3 includes a first block 31 slidably connected in the first sliding groove. A first adjusting component 35 connected with the first block 31 is arranged on the frame 1, the first adjusting component 35 comprises a first screw rod 352 rotatably connected in the first sliding groove, and the first screw rod 352 penetrates through the first block 31 and is in threaded connection with the first block 31; a first motor 351 connected to the first screw 352 is fixedly connected to the frame 1.

Referring to fig. 1 and 4, the first block 31 is provided with a second sliding groove 311 along the vertical direction thereof, and the second sliding groove 311 is connected with the second block 32 in a sliding manner; a second adjusting component 36 is arranged on the first block 31, the second adjusting component 36 comprises a second screw 362 rotatably connected in the second sliding chute 311, and the second screw 362 passes through the second block 32 and is in threaded connection with the second block 32; a second motor 361 connected with the second screw 362 is fixedly connected to the first block 31.

Referring to fig. 4 and 5, a third adjusting assembly 37 is disposed on a side of the second block 32 away from the first block 31, the third adjusting assembly 37 includes a connecting shaft 374 rotatably connected to the second block 32, and a third block 33 is fixedly connected to an end of the connecting shaft 374 away from the second block 32; a third motor 373 is fixedly connected to the second block 32, and a first gear 371 is keyed on an output shaft of the third motor 373; a second gear 372 engaged with the first gear 371 is keyed to the connecting shaft 374.

A third sliding chute 331 is formed in one side of the third block 33, which is far away from the second block 32, and a fourth block 34 is connected in the third sliding chute 331 in a sliding manner; a fourth adjusting component 38 is arranged on the third block 33, the fourth adjusting component 38 comprises a third screw 382 rotatably connected in the third sliding chute 331, and the third screw 382 passes through the fourth block 34 and is in threaded connection with the fourth block 34; a fourth motor 381 connected to the third screw 382 is fixedly connected to the third block 33.

Referring to fig. 4 and 6, an end of the fourth block 34 away from the third block 33 is provided with a connecting mechanism 8, and the connecting mechanism 8 includes a placing plate fixedly connected to the fourth block 34; the end of the fourth block 34 away from the third block is provided with a fifth block 81, and the fifth block 81 is placed on the placing plate; both ends of the fifth block 81 are provided with limiting grooves; both ends of the fourth block 34 are connected with limiting blocks 82 in a sliding mode, and the two limiting blocks 82 are respectively clamped with the two limiting grooves. A cavity 341 is formed in the fourth block 34, a connecting assembly 83 is arranged on the fourth block 34, the connecting assembly 83 comprises two connecting rods 831 connected in the cavity 341 in a sliding manner, and the two connecting rods 831 are respectively connected with the two limiting blocks 82; a second bidirectional screw 832 is rotatably connected in the cavity 341, the thread directions of two ends of the second bidirectional screw 832 are opposite, the second bidirectional screw 832 passes through two connecting rods 831, and the two connecting rods 831 are respectively in threaded connection with two ends of the second bidirectional screw 832; an eleventh motor 833 connected with the second bidirectional screw 832 is fixedly connected to the fourth connecting block 11.

Referring to fig. 6 and 7, a processing mechanism 7 is disposed at an end of the fifth block 81 away from the fourth block 34, the processing mechanism 7 includes a first mounting block 71 fixedly connected to an end of the fifth block 81, a ninth motor 75 is fixedly connected to the first mounting block 71, and a key sleeve is fixedly connected to an output shaft of the ninth motor 75; a fourth sliding groove 811 is formed in one end, away from the first mounting block 71, of the fifth block 81, a second mounting block 72 is connected to the fourth sliding groove 811 in a sliding manner, a rotating hole is formed in one side, facing the first mounting block 71, of the second mounting block 72, and a shaft sleeve is connected to the rotating hole in a rotating manner. An eighth adjusting assembly 76 is arranged on the fifth block 81, the eighth adjusting assembly 76 comprises a tenth motor 761 fixedly connected to the second mounting block 72, and a ninth gear 762 is keyed on an output shaft of the tenth motor 761; a second rack 763 engaged with the ninth gear 762 is fixedly connected to a sidewall of the fourth sliding groove 811.

A processing shaft 73 is arranged between the first mounting block 71 and the second mounting block 72, one end of the processing shaft 73 is positioned in the key sleeve, and the other end of the processing shaft 73 is positioned in the shaft sleeve; a processing knife 74 is fixedly connected to the processing shaft 73.

A fifth sliding groove 812 is formed in the fifth block 81, an adjusting mechanism 9 is arranged on the fifth block 81, the adjusting mechanism 9 comprises a sliding block connected in the fifth sliding groove 812 in a sliding manner, an adjusting rod 91 is fixedly connected to the sliding block, one end of the adjusting rod 91, which is far away from the sliding block, is fixedly connected with a blocking block 92, and the blocking block 92 is located on one side, far away from the workpiece, of the machining tool 74. A ninth adjusting component 93 is arranged on the fifth block 81, the ninth adjusting component 93 comprises a fourth screw 932 rotatably connected in the fifth chute 812, and the fourth screw 932 penetrates through the sliding block and is in threaded connection with the sliding block; a twelfth motor 931 connected with a fourth screw 932 is fixedly connected to the fifth block 81.

When a workpiece needs to be machined, one end of the machining shaft 73 extends into the key sleeve, then the tenth motor 761 is started, an output shaft of the tenth motor 761 drives the ninth gear 762 to rotate, and because the ninth gear 762 is meshed with the second rack 763, when the ninth gear 762 rotates, the ninth gear 762 drives the second mounting block 72 to move towards the direction close to the first mounting block 71, so that one end, far away from the first mounting block 71, of the machining shaft 73 enters the key sleeve.

Then, the fifth block 81 is placed on the placing plate, the eleventh motor 833 is started, the output shaft of the eleventh motor 833 drives the second bidirectional screw 832 to rotate, the second bidirectional screw 832 drives the two connecting rods 831 to move in opposite directions, the two limiting blocks 82 on the two connecting rods 831 move in opposite directions, the two limiting blocks 82 are respectively clamped with the two limiting grooves on the fifth block 81, and the fifth block 81 is connected to the fourth block 34.

When the first motor 351 is started, the first motor 351 drives the first screw rod 352 to rotate, and the first screw rod 352 rotates to drive the first block 31 to slide in the first sliding groove; the second motor 361 is started, the output shaft of the second motor 361 drives the second screw 362 to rotate, and the second screw 362 drives the second block 32 to slide in the second chute 311; when the third motor 373 is started, the output shaft of the third motor 373 drives the first gear 371 to rotate, the second gear 372 meshed with the first gear 371 drives the connecting shaft 374 to rotate, and the connecting shaft 374 drives the third block 33 to rotate; the fourth motor 381 is started, the output shaft of the fourth motor 381 drives the third screw rod 382 to rotate, and the third screw rod 382 drives the fourth block 34 to slide in the third sliding groove 331; when the ninth motor 75 is started, the output shaft of the ninth motor 75 drives the key sleeve to rotate, the key sleeve drives the processing shaft 73 to rotate, and the processing knife 74 on the processing shaft 73 rotates.

When the machining tool 74 machines a workpiece, the twelfth motor 931 is started, the output shaft of the twelfth motor 931 drives the fourth screw 932 to rotate, the fourth screw 932 drives the sliding block to slide in the fifth sliding groove 812, the sliding block drives the adjusting rod 91 to move, and the blocking block 92 on the adjusting rod 91 moves to one end of the machining tool 74 away from the workpiece; the stop block 92 will stop the splattered debris when the machining tool 74 is machining a workpiece.

Referring to fig. 1 and 3, the first block 31 is provided with a blocking mechanism 4 connected to the frame 1; the second block 32 is also provided with a blocking mechanism 4 connected to the first block 31.

Referring to fig. 3 and 8, in this embodiment, taking the first block 31 and the blocking mechanism 4 of the rack 1 as an example, the blocking mechanism 4 includes a winding shaft 42, two ends of the rack 1 are rotatably connected with the winding shaft 42, a blocking plate is arranged on the winding shaft 42, the blocking plate is composed of a plurality of connecting plates 41, and two adjacent connecting plates 41 are hinged to each other; the connecting plate 41 at one end of the blocking plate is connected with the winding shaft 42, and the connecting plate 41 at the other end of the blocking plate is connected with the first block 31; the first block 31 and the plurality of connecting plates 41 collectively cover the first slide groove. A fifth adjusting component 43 is arranged on the rack 1, the fifth adjusting component 43 comprises a fifth motor 433 fixedly connected to the rack 1, and a third gear 431 is connected to an output shaft of the fifth motor 433 in a key manner; a fourth gear 432 meshed with the third gear 431 is keyed to the take-up shaft 42.

A plurality of reinforcing grooves 421 are uniformly formed in the peripheral side wall of the winding shaft 42, a reinforcing mechanism 5 is arranged on the rack 1, the reinforcing mechanism 5 comprises a reinforcing rod 51 connected to the rack 1 in a sliding mode, and the reinforcing rod 51 is connected with the reinforcing grooves 421 in a clamping mode. A sixth adjusting assembly 52 is arranged on the frame 1, the sixth adjusting assembly 52 comprises a sixth motor 521 fixedly connected to the frame 1, and a fifth gear 522 is keyed on an output shaft of the sixth motor 521; a first rack 523 engaged with the fifth gear 522 is fixedly connected to the reinforcing rod 51.

When the first block 31 moves in the first sliding slot of the rack 1, the fifth motor 433 is started, the output shaft of the fifth motor 433 drives the third gear 431 to rotate, the fourth gear 432 meshed with the third gear 431 drives the winding shaft 42 to rotate, so that the winding shaft 42 at one end of the rack 1 winds the connecting plate 41, and the connecting plate 41 on the winding shaft 42 at the other end of the rack 1 winds out on the winding shaft 42.

When the winding shaft 42 does not rotate any more, the sixth motor 521 is started, the output shaft of the sixth motor 521 drives the fifth gear 522 to rotate, the first rack 523 engaged with the fifth gear 522 drives the reinforcing rod 51 to move towards the direction close to the winding shaft 42, and the reinforcing rod 51 is clamped with the reinforcing groove 421 on the winding shaft 42.

Referring to fig. 3 and 9, the frame 1 is provided with the limiting device 6, the limiting device 6 includes two sixth gears 61 rotatably connected to the frame 1, the two sixth gears 61 are located between the two winding shafts 42, the two sixth gears 61 are sleeved with a chain 62, and the first block 31 is connected to the chain 62; the chain 62 is connected with a limiting rod 63, and each connecting plate 41 is provided with a limiting groove clamped with the limiting rod 63.

The clamping mechanism 64 is arranged on the rack 1, the clamping mechanism 64 comprises two fixed blocks 641 fixedly connected to the rack 1, the two fixed blocks 641 are arranged between the two winding shafts 42, the two sixth gears 61 are arranged between the two fixed blocks 641, a through hole for the connecting plate 41 to pass through is formed in each fixed block 641, two grooves are formed in the side wall of each through hole and are arranged on the opposite surfaces of the through holes, clamping plates 642 are connected in the two grooves in a sliding mode, and the two clamping plates 642 respectively abut against the two side walls of the connecting plate 41; a first bidirectional screw 643 is rotatably connected to the fixed block 641, the thread directions of the two ends of the first bidirectional screw 643 are opposite, the first bidirectional screw 643 penetrates through the two clamping plates 642, and the two clamping plates 642 are respectively in threaded connection with the two ends of the first bidirectional screw 643; a seventh motor 644 connected to the first bidirectional screw 643 is fixedly connected to the fixed block 641.

When the first block 31 moves, the first block 31 drives the chain 62 to rotate, and the limiting rod 63 on the chain 62 is clamped with the limiting groove on the connecting plate 41 or separated from the limiting groove on the connecting plate 41. When the first block 31 stops moving, the seventh motor 644 is started, an output shaft of the seventh motor 644 drives the first bidirectional screw 643 to rotate, and the first bidirectional screw 643 drives the two clamping plates 642 to move in opposite directions, so that the two clamping plates 642 clamp the connecting plate 41 located in the through hole.

Similarly, both ends of the first block 31 are provided with the winding shafts 42, and the winding shafts 42 on the first block 31 are connected with the stop plates connected with the second block 32; two fixing blocks 641 are disposed on the first block 31 between the two winding shafts 42, a chain 62 is disposed on the first block 31 between the two fixing blocks 641, and the second block 32 is connected to the chain 62 disposed on the first block 31.

The motors in this embodiment are all three-phase asynchronous motors.

The implementation principle of the six-axis numerical control gear hobbing machine in the embodiment of the application is as follows: when hobbing a workpiece to form a gear, the machining shaft 73 is first mounted on the fifth block 81, the fifth block 81 is then placed on the placing plate, and the fifth block 81 is then connected to the fourth block 34 by the connecting member 83.

The workpiece is placed on the placing tray 22, and then the defining block 23 is screwed to the placing shaft 21, and the defining block 23 is pressed against an end of the workpiece remote from the placing tray 22.

The first motor 351, the second motor 361, the third motor 373 and the fourth motor 381 are started, the first motor 351 drives the first block 31 to move in the first chute of the rack 1, the second motor 361 drives the second block 32 to move in the second chute 311 of the first block 31, the third motor 373 drives the third block 33 to rotate relative to the second block 32, and the fourth motor 381 drives the fourth block 34 to slide in the third chute 331 of the third block 33, so that the processing knife 74 on the processing shaft 73 finally abuts against the workpiece.

Starting the ninth motor 75 and the eighth motor 243, the ninth motor 75 drives the processing shaft 73 to rotate, and the processing knife 74 on the processing shaft 73 rotates; the eighth motor 243 drives the placing shaft 21 to rotate, and the placing shaft 21 drives the workpiece to rotate; thereby realizing hobbing of the workpiece.

When the machining tool 74 performs gear hobbing on a workpiece, the twelfth motor 931 is started, and the twelfth motor 931 drives the blocking block 92 to move, so that the blocking block 92 is located on the side, away from the workpiece, of the machining tool 74.

When the first block 31 slides on the rack 1 and the second block 32 slides on the first block 31, the fifth motor 433 is started, the fifth motor 433 drives the winding shaft 42 to rotate, under the action of the winding shaft 42 and the first block 31, the blocking plate connecting the first block 31 and the rack 1 is in a stretched state, and the first block 31 and the blocking plate jointly cover the first chute; under the action of the winding shaft 42 and the second block 32, the blocking plate connecting the second block 32 and the first block 31 is in a stretched state, and the second block 32 and the blocking plate jointly cover the second chute 311.

Then, the sixth motor 521 is started, and the sixth motor 521 drives the reinforcing rod 51 to move towards the direction close to the winding shaft 42, so that the reinforcing rod 51 is clamped with the reinforcing on the winding shaft 42.

When the first block 31 or the second block 32 moves, the first block 31 or the second block 32 drives the chain 62 to move, and the limiting rod 63 on the chain 62 can be clamped with or separated from the limiting rod 63 on the connecting plate 41, so that the connecting plate 41 close to the first block 31 or the second block 32 is kept in a stretched state. After the position of the first block 31 or the second block 32 is fixed, the seventh motor 644 is started, the seventh motor 644 drives the first bidirectional screw 643 to rotate, the first bidirectional screw 643 drives the two clamping plates 642 to move oppositely, and the two clamping plates 642 clamp the connecting plate 41 located in the through hole.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A six-axis numerical control gear hobbing machine comprises a rack (1), a machining device (3) and a placing device (2), wherein the placing device (2) is arranged on the rack (1); the machining device (3) is characterized by comprising a first block (31), a second block (32), a third block (33), a fourth block (34), a first adjusting component (35), a second adjusting component (36), a third adjusting component (37), a fourth adjusting component (38), a machining mechanism (7) and a blocking mechanism (4), wherein a first sliding groove is formed in the rack (1), the first block (31) is connected in the first sliding groove in a sliding manner, and the first adjusting component (35) is arranged on the rack (1) and connected with the first block (31); a second sliding groove (311) is formed in the first block (31), the second block (32) is connected in the second sliding groove (311) in a sliding manner, and the second adjusting component (36) is arranged on the first block (31) and connected with the second block (32); the third block (33) is rotatably connected to the second block (32), and the third adjusting component (37) is arranged on the second block (32) and connected with the third block (33); a third sliding groove (331) is formed in the third block (33), the fourth block (34) is connected in the third sliding groove (331) in a sliding manner, and the fourth adjusting component (38) is arranged on the third block (33) and connected with the fourth block (34); the processing mechanism (7) is arranged on the fourth block (34); the first block (31) is provided with the blocking mechanism (4) connected with the rack (1), the second block (32) is provided with the blocking mechanism (4) connected with the first block (31), the blocking mechanism (4) arranged on the rack (1) and the first block (31) jointly cover the first sliding chute, and the blocking mechanism (4) arranged on the first block (31) and the second block (32) jointly cover the second sliding chute (311);

the blocking mechanism (4) comprises a blocking plate, a winding shaft (42) and a fifth adjusting component (43),

the two ends of the first block (31) and the second block (32) are respectively provided with the blocking plate, each blocking plate is composed of a plurality of connecting plates (41), and two adjacent connecting plates (41) are hinged;

the two ends of the rack (1) and the two ends of the first block (31) are respectively provided with the winding shaft (42), the connecting plate (41) at one end of the barrier plate is connected to the first block (31) or the second block (32), and the other end of the barrier plate is connected to the corresponding winding shaft (42);

the fifth adjusting assembly (43) comprises a third gear (431), a fourth gear (432) and a fifth motor (433), the frame (1) and the first block (31) are respectively provided with the fifth motor (433), and the third gear (431) is connected to an output shaft of the fifth motor (433) in a key mode; the fourth gear (432) is keyed on the take-up shaft (42) and meshes with the third gear (431).

2. The six-shaft numerical control gear hobbing machine according to claim 1, characterized by further comprising a reinforcing mechanism (5), wherein the reinforcing mechanism (5) comprises a reinforcing rod (51) and a sixth adjusting assembly (52), a reinforcing groove (421) is formed in the winding shaft (42), the reinforcing rod (51) is arranged on each of the rack (1) and the first block (31), and the reinforcing rod (51) is clamped with the reinforcing groove (421);

the sixth adjusting assembly (52) comprises a sixth motor (521), a fifth gear (522) and a first rack (523), the sixth motor (521) is arranged on the rack (1) and the first block (31), and the fifth gear (522) is connected to an output shaft of the sixth motor (521) in a key mode; the first rack (523) is disposed on the reinforcement bar (51) and engaged with the fifth gear (522).

3. A six-axis numerical control gear hobbing machine according to claim 1, characterized in that a limiting device (6) is provided on the machine frame (1), the limiting device (6) comprises a sixth gear (61), a chain (62), a limiting rod (63) and a clamping mechanism (64), two sixth gears (61) are provided on both the machine frame (1) and the first block (31), the chain (62) is sleeved on the two sixth gears (61), the first block (31) is provided on the chain (62) on the machine frame (1), and the second block (32) is provided on the chain (62) on the first block (31); the limiting rod (63) is arranged on the chain (62), and a limiting groove clamped with the limiting rod (63) is formed in the connecting plate (41);

the clamping mechanism (64) comprises a fixing block (641), a clamping plate (642), a first bidirectional screw (643) and a seventh motor (644), a through hole for the connecting plate (41) to pass through is formed in the fixing block (641), two grooves are formed in the side wall of the through hole, the clamping plate (642) is connected in the two grooves in a sliding mode, and the two clamping plates (642) are tightly abutted to the connecting plate (41); the first bidirectional screw (643) is arranged on the fixed block (641), and the two clamping plates (642) are respectively connected with two ends of the first bidirectional screw (643); the seventh motor (644) is disposed on the fixed block (641) and connected to the first bidirectional screw (643).

4. The six-shaft numerical control gear hobbing machine according to claim 1, characterized in that the placing device (2) comprises a placing shaft (21), a placing disc (22), a limiting block (23) and a seventh adjusting assembly (24), the placing shaft (21) is rotatably connected to the machine frame (1), the placing disc (22) is arranged on the placing shaft (21), and a workpiece is placed on the placing disc (22); the limiting block (23) is in threaded connection with one end, far away from the rack (1), of the placing shaft (21), and the limiting block (23) abuts against a workpiece;

the seventh adjusting component (24) comprises a seventh gear (241), an eighth gear (242) and an eighth motor (243), the eighth motor (243) is arranged on the frame (1), and the seventh gear (241) is connected with an output shaft of the eighth motor (243) in a key mode; the eighth gear (242) is keyed on the placing shaft (21) and meshes with the seventh gear (241).

5. The six-shaft numerical control gear hobbing machine according to claim 1, characterized in that the machining mechanism (7) comprises a first mounting block (71), a second mounting block (72), a machining shaft (73), a machining cutter (74), a key sleeve, a ninth motor (75) and an eighth adjusting assembly (76), the first mounting block (71) is disposed at one end of the fourth block (34), the ninth motor (75) is disposed on the first mounting block (71), and the key sleeve is disposed on an output shaft of the ninth motor (75); a fourth sliding groove (811) is formed in the fourth block (34), the second mounting block (72) is connected in the fourth sliding groove (811) in a sliding manner, and a rotating hole is formed in the second mounting block (72); one end of the processing shaft (73) is connected with the key sleeve, the other end of the processing shaft is positioned in the rotating hole, and the processing cutter (74) is arranged on the processing shaft (73);

the eighth adjusting assembly (76) comprises a tenth motor (761), a ninth gear (762) and a second rack (763), the tenth motor (761) is arranged on the second mounting block (72), and the ninth gear (762) is keyed on an output shaft of the tenth motor (761); the second rack (763) is disposed within the fourth runner (811) and is engaged with the ninth gear (762).

6. A six-axis numerical control gear hobbing machine according to claim 5, characterized in that a connection mechanism (8) is provided on said fourth block (34), said connection mechanism (8) comprising a placing plate provided on said fourth block (34), a fifth block (81), a limiting block (82) and a connection assembly (83); the first mounting block (71), the fourth sliding groove (811) and the eighth adjusting component (76) are all arranged on the fifth block (81), the fifth block (81) is placed on the placing plate, and limiting grooves are formed in the side walls of the two sides of the fifth block (81); the fourth block (34) is provided with two limiting blocks (82), and the two limiting blocks (82) are respectively clamped with the two limiting grooves;

the connecting assembly (83) comprises two connecting rods (831), a second bidirectional screw (832) and an eleventh motor (833), and the two connecting rods (831) are respectively connected with the two limiting blocks (82); the two connecting rods (831) are respectively connected with two ends of the second bidirectional screw (832); the eleventh motor (833) is disposed on the fourth block (34) and connected to the second bidirectional screw (832).

7. The six-axis numerical control gear hobbing machine according to claim 6, wherein an adjusting mechanism (9) is arranged on the fifth block (81), the adjusting mechanism (9) comprises an adjusting rod (91), a blocking block (92) and a ninth adjusting assembly (93), a fifth sliding groove (812) is formed in the fifth block (81), the adjusting rod (91) is connected in the fifth sliding groove (812) in a sliding manner, the blocking block (92) is arranged on the adjusting rod (91), and the blocking block (92) is positioned on one side, away from a workpiece, of the machining cutter (74);

the ninth adjusting assembly (93) comprises a twelfth motor (931) and a fourth screw (932), and the fourth screw (932) is arranged in the fifth sliding chute (812) and connected with the adjusting rod (91); the twelfth motor (931) is disposed on the fifth block (81) and connected to the fourth screw (932).

8. A six-axis numerically controlled gear hobbing machine according to claim 1, characterized in that said first adjustment assembly (35) comprises a first motor (351) and a first screw (352), said first screw (352) being arranged inside said first chute and being connected to said first block (31); the first motor (351) is arranged on the frame (1) and is connected with the first screw rod (352);

the second adjusting component (36) comprises a second motor (361) and a second screw rod (362), and the second screw rod (362) is arranged in the second sliding groove (311) and connected with the first block (31); the second motor (361) is arranged on the first block (31) and connected with the second screw (362);

the third adjusting assembly (37) comprises a first gear (371), a second gear (372), a third motor (373) and a connecting shaft (374), the connecting shaft (374) is rotatably connected to the second block (32), and the third block (33) is arranged at one end, away from the second block (32), of the connecting shaft (374); the second gear (372) is keyed on the connecting shaft (374); the third electric machine (373) is arranged on the second block (32), the first gear (371) is keyed on the output shaft of the third electric machine (373) and meshes with the second gear (372);

the fourth adjusting assembly (38) comprises a fourth motor (381) and a third screw (382), the third screw (382) is arranged in the third sliding chute (331) and is connected with the fourth block (34); the fourth motor (381) is disposed on the third block (33) and connected to the third screw (382).