CN218532830U

CN218532830U - Numerical control facing head arranged in conical gear planetary mechanism

Info

Publication number: CN218532830U
Application number: CN202222857671.2U
Authority: CN
Inventors: 赵慎亮
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-28
Filing date: 2022-10-28
Publication date: 2023-02-28
Anticipated expiration: 2032-10-28

Abstract

The utility model discloses a put numerical control facing head in conical gear planetary mechanism, include: the connecting mechanism comprises a driving rotor, a rotor connecting shaft and a rotor, the rotor is provided with a rectangular guide rail, the rotor connecting shaft is connected with the rotor through a first screw, and the driving rotor is connected with the rotor connecting shaft through a second screw; the sliding block is arranged in the rectangular guide rail and is connected with a cutter; the stator is arranged on one side of the connecting mechanism, which is far away from the cutter, and the other end of the stator is connected with a main spindle box of the machine tool through a connecting piece; the spindle in the spindle box of the machine tool is connected with a driving rotor through a spindle end face key, the spindle box of the machine tool is started, the driving rotor and a rotor connecting shaft drive the rotor and the cutter to rotate around the axis of the spindle in the spindle box of the machine tool in a rotating mode in a stator. When a workpiece is machined, the spindle box of the machine tool can be started to drive components in the stator to rotate, so that the rotor and the cutter do rotary motion.

Description

Numerical control facing head arranged in conical gear planetary mechanism

Technical Field

The utility model relates to a numerical control facing head field, concretely relates to put numerical control facing head in conical gear planetary mechanism.

Background

The conventional numerical control facing head is mostly fixedly arranged at the end part of a spindle box of a machine tool, such as a numerical control boring machine, a numerical control gantry mill and the like, but is also arranged at the end part of a ram of the spindle box, the numerical control facing heads are mostly undetachable, a U-shaft (sliding block feeding) transmission chain is designed and arranged in the spindle box of the machine tool, the transmission chain is long and complex, difficult to assemble and debug, poor in transmission rigidity, large and unstable in mechanical clearance, difficult to compensate for mechanical reverse clearance, heavy in appearance design, large in radial dimension, disproportionate in appearance design, heavy in weight, difficult to compensate for a balancing system of the spindle box of the machine tool, difficult to meet the machining precision requirements of modern mechanical industrial products on special-shaped complex profiles such as spherical surfaces, R profiles, conical surfaces, sealing grooves and the like, and incapable of meeting the requirements of multiple modern numerical control machine tool functional accessories (such as facing heads, right-angle milling heads, universal milling heads, extension milling heads and the like), frequent in accessory installation and disassembly and high in installation precision.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the length of facing head U axle transmission chain and structure are complicated, and assembly debugging difficulty is high to the complicated profile machining precision requirement of mechanical industry product, and aim at provides a numerical control facing head in conical gear planetary mechanism, solves the U axle and can do the linkage interpolation with other axles of digit control machine tool, and completion that can be very convenient is to the problem of work piece dysmorphism face processing.

The utility model discloses a following technical scheme realizes:

a numerical control facing head in a conical gear planetary mechanism comprises:

the connecting mechanism comprises a driving rotor, a rotor connecting shaft and a rotor, wherein the rotor is provided with a rectangular guide rail, the rotor connecting shaft is connected with the rotor through a first screw, and the driving rotor is connected with the rotor connecting shaft through a second screw;

the sliding block is arranged in the rectangular guide rail and is connected with a cutter;

the stator is arranged on one side of the connecting mechanism, which is far away from the cutter, and the other end of the stator is connected with a main spindle box of the machine tool through a connecting piece;

the spindle in the spindle box of the machine tool is connected with the driving rotor through a spindle end face key, the spindle box of the machine tool is started, the driving rotor and the rotor connecting shaft drive the rotor and the cutter to be in the stator, the rotor and the cutter rotate around the axis of the spindle in the spindle box of the machine tool, and the cutter rotates.

Furthermore, the transmission system comprises an alternating-current servo motor, a driving belt pulley, a synchronous belt, a driven belt pulley, a worm wheel, a worm, a bevel gear middle-mounted planetary mechanism, a bevel gear pair and a planetary roller screw, the alternating-current servo motor is connected with the driving belt pulley, the driving belt pulley is in transmission connection with the driven belt pulley through the synchronous belt, the driven belt pulley is in transmission connection with the worm, the worm wheel is meshed with the worm, the worm wheel is in transmission connection with the bevel gear middle-mounted planetary mechanism, the bevel gear middle-mounted planetary mechanism is in transmission connection with the bevel gear pair to drive the planetary roller screw in transmission connection with the bevel gear pair to rotate, the planetary roller screw is fixedly connected with the sliding block through a third screw and a positioning block, and the planetary roller screw can drive the sliding block to drive the cutter to move linearly when rotating.

Furthermore, the planetary mechanism in the conical gear comprises a rotating planet carrier, a plurality of planet bevel gears and a duplex bevel gear ring, the rotating planet carrier is in transmission connection with the worm, the planet bevel gears are uniformly distributed on the rotating planet carrier and are used for driving the bevel gear pair, the rotating planet carrier is sleeved on the rotor connecting shaft through a needle bearing, and the planet bevel gears are simultaneously meshed with the duplex bevel gear ring and the bevel gear ring.

Furthermore, the bevel gear pair comprises a bevel gear ring and a bevel gear meshed with the bevel gear ring, the bevel gear ring is in transmission connection with the planet bevel gear, and the bevel gear ring drives the bevel gear to rotate and is used for driving the planet roller screw.

Furthermore, the planetary mechanism in the conical gear further comprises a static planet carrier and a stop pin, the static planet carrier is fixedly connected with the stator through the stop pin, and a gap exists between an inner hole of the static planet carrier and the rotor connecting shaft.

Furthermore, the bevel gear pair also comprises a driving bevel gear and planet gears meshed with the driving bevel gear, and the planet gears are distributed in the static planet carrier in a surrounding mode and meshed with the duplex bevel gear ring.

Furthermore, a tool apron is arranged on one side, close to the rotor, of the tool, the tool is connected with the tool apron through a tool holder, and a connecting block used for being connected with the T-shaped groove is arranged on one side, facing the sliding block, of the tool apron.

Furthermore, the connecting piece is a flange plate, the stator is connected with the flange plate through a fifth screw, and the flange plate is connected with the spindle box of the machine tool through a sixth screw.

Further, still include external encoder system, external encoder system sets up the radial die cavity of stator, external encoder system includes the position detection encoder, the position detection encoder pass through the fourth screw with the stator is connected.

Furthermore, the motor stator further comprises a switch system, wherein the switch system is arranged in a radial cavity of the stator and comprises a travel switch and a travel switch lead screw pair, and one side of the travel switch lead screw pair, which is close to the external encoder system, is in transmission connection with one end of the worm through a synchronous belt.

Compared with the prior art, the utility model, following advantage and beneficial effect have:

stator, rotor portion cover, transmission system, external encoder system and switching system's design is compact, can effectively utilize limited usage space, but numerical control facing head U axle alone operation realizes processing such as work piece plane, slot, also can unite other shafting of digit control machine tool to do the linkage interpolation simultaneously, can accomplish the processing to mechanical workpiece dysmorphism face, the utility model provides a conical gear planet put the structure in, the transmission is accurate and mechanical clearance adjustment is convenient, can keep the high accuracy demand for a long time, and U axle precision compensation is very convenient.

Drawings

The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the invention and together with the description serve to explain the principle of the invention. In the drawings:

FIG. 1 is a schematic structural view of the present invention when processing a workpiece;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a schematic view of the planetary roller screw of the present invention;

fig. 4 is a schematic structural view of a central planetary mechanism of a bevel gear according to the present invention;

fig. 5 is a cross-sectional view of the stator cavity of the present invention.

Reference numbers and corresponding part names in the drawings:

1. a stator; 21. a rotor; 22. a drive rotor; 23. a rotor connecting shaft; 3. a slider; 31. a cutter; 32. a tool holder; 33. a tool apron; 41. a servo motor; 42. a driving pulley; 43. a synchronous belt; 44. a driven pulley; 45. a worm gear; 46. a worm; 47. a planetary roller screw; 471. a nut seat; 472. positioning a block; 51. rotating the planet carrier; 52. planetary bevel gears; 53. a duplex bevel gear ring; 54. a stationary planet carrier; 55. a retaining pin; 56. a needle bearing; 61. a bevel gear ring; 62. a bevel gear; 63. a drive bevel gear; 64. a planet gear; 7. a flange plate; 8. a main spindle box of a machine tool.

Detailed Description

To make the objects, technical solutions and advantages of the present invention more clearly understood, the following description is given for further details of the present invention with reference to the accompanying drawings, and the exemplary embodiments and descriptions thereof are only used for explaining the present invention, and are not intended to limit the present invention.

Example one

As shown in fig. 1 and fig. 2, in the first embodiment, there is provided a central numerical control facing head of a conical gear planetary mechanism, including:

the connecting mechanism comprises a driving rotor 22, a rotor connecting shaft 23 and a rotor 21, a rectangular guide rail is arranged on the rotor 21, the rotor connecting shaft 23 is connected with the rotor 21 through a first screw, and the driving rotor 22 is connected with the rotor connecting shaft 23 through a second screw;

the sliding block 3 is arranged in the rectangular guide rail and is connected with a cutter 31;

the stator 1 is arranged on one side, away from the cutter 31, of the connecting mechanism, and the other end of the stator 1 is connected with a machine tool spindle box 8 through a connecting piece;

the spindle in the machine tool spindle box 8 is connected with the drive rotor 22 through a spindle end face key, the machine tool spindle box 8 is started, the drive rotor 22 and the rotor connecting shaft 23 drive the rotor 21 and the tool 31 to rotate around the axis of the spindle in the machine tool spindle box 8 in the stator 1, and the tool 31 rotates.

As shown in fig. 2, fig. 3 and fig. 5, the cutting tool further includes a transmission system, the transmission system includes an ac servo motor 41, a driving pulley 42, a synchronous belt 43, a driven pulley 44, a worm wheel 45, a worm 46, a conical gear middle-set planetary mechanism, a conical gear pair and a planetary roller screw 47, the ac servo motor 41 is connected with the driving pulley 42, the driving pulley 42 is in transmission connection with the driven pulley 44 through the synchronous belt 43, the driven pulley 44 is in transmission connection with the worm 46, the worm wheel 45 is meshed with the worm 46 and the worm wheel 45 is in transmission connection with the conical gear middle-set planetary mechanism, the conical gear middle-set planetary mechanism is in transmission connection with the conical gear pair to drive the planetary roller screw 47 in transmission connection with the conical gear pair to rotate, the planetary roller screw 47 is fixedly connected with the slide block 3 through a third screw and a positioning block 472, and when the planetary roller screw 47 rotates, the slide block 3 can be driven to drive the cutting tool 31 to make a linear movement.

As shown in fig. 2, 3 and 5, the bevel gear central planetary mechanism includes a rotating planet carrier 51, a plurality of planet bevel gears 52 and a duplex bevel gear ring 53, the rotating planet carrier 51 is in transmission connection with the worm 46, the plurality of planet bevel gears 52 are uniformly distributed on the rotating planet carrier 51, the planet bevel gears 52 are used for driving a bevel gear pair, and the rotating planet carrier 51 is sleeved on the rotor connecting shaft 23 through a needle bearing 56, and the planet bevel gears 52 are simultaneously meshed with the duplex bevel gear ring 53 and the bevel gear ring 61.

As shown in fig. 2, 4 and 5, the bevel gear pair comprises a bevel gear ring 61 and a bevel gear 62 engaged with the bevel gear ring 61, the bevel gear ring 61 is in transmission connection with the planetary bevel gear 52, and the bevel gear ring 61 drives the bevel gear 62 to rotate and drive the planetary roller screw 47.

As shown in fig. 2, 3 and 5, the planetary gear set in cone gear further includes a stationary planet carrier 54 and a latch 55, the stationary planet carrier 54 is fixedly connected with the stator 1 through the latch 55, and a gap exists between an inner hole of the stationary planet carrier 54 and the rotor connecting shaft 23.

As shown in fig. 2, 3 and 5, the bevel gear pair further includes a driving bevel gear 63 and planetary gears 64 engaged with the driving bevel gear 63, and a plurality of planetary gears 64 are circumferentially distributed in the stationary planet carrier 54 and engaged with the double bevel ring gear 53.

As shown in fig. 1, the tool 31 is provided with a tool seat 33 on a side thereof adjacent to the rotor 21, the tool 31 is connected to the tool seat 33 via a tool holder 32, and a connecting block for connecting to a T-shaped groove is provided on a side of the tool seat 33 facing the slide 3.

As shown in fig. 1 and 5, the connecting piece is a flange 7, the stator 1 is connected with the flange 7 through a fifth screw, and the flange 7 is connected with a spindle box 8 of a machine tool through a sixth screw.

Still include external encoder system, external encoder system sets up in the radial die cavity of stator 1, and external encoder system includes the position detection encoder, and the position detection encoder passes through the fourth screw and is connected with stator 1.

The stator comprises a stator 1 and is characterized by further comprising a switch system, wherein the switch system is arranged in a radial cavity of the stator 1 and comprises a travel switch and a travel switch lead screw pair, and one side, close to an external encoder system, of the travel switch lead screw pair is in transmission connection with one end of a worm 46 through synchronous belt transmission.

Specifically, the utility model discloses when using, accessible ring flange 7 is fixed stator 1 and lathe headstock 8, and the gravity etc. of cutting force and numerical control facing head self that produce when processing all can transmit for lathe headstock 8,U axle through ring flange 7 and have two kinds of behavior, and this embodiment is first, and feed motion is done to the U axle.

When the end face, the spherical face, the conical hole, the arc and the chamfer are machined, the U-axis moves radially according to a program instruction, firstly, the servo motor 41 is started, the driving pulley 42 connected with the servo motor 41 starts to rotate, the driving pulley 42 transmits power to the driven pulley 44 through the synchronous belt 43, then, the driven pulley 44 drives the worm 46 connected with the driven pulley to rotate and simultaneously enables the worm wheel 45 to rotate, the worm wheel 45 is connected with the rotating planet carrier 51 through the seventh screw, the planetary bevel gears 52 are distributed on the rotating planet carrier 51 in a surrounding mode and are in transmission connection with the rotating planet carrier, the planetary bevel gears 52 are meshed with the double bevel gear ring 53 and the bevel ring 61, the double bevel gear ring 53 is static and does not move, the planetary bevel gears 52 drive the bevel gear ring 61 to rotate together, the bevel ring 61 and the rotor 21 to generate relative motion, when the bevel gear ring 61 rotates, the bevel gears 62 connected with the bevel gears are driven to rotate together, when the bevel gears 62 rotate, the screw 47 is driven to move by the third screw and the roller positioning block 472 to transmit linear motion to the planetary shaft 31, and the planetary cutter 3 to perform linear motion.

It should be noted that, the utility model discloses a U axle mentioned, radial feed for slider 3, exchange servo motor 41, driving pulley 42, hold-in range 43, driven pulley 44, worm wheel 45, worm 46, the middle planetary mechanism of conical gear, external encoder detecting system and switching system etc. all set up in the die cavity of stator 1, and bevel gear 62, planet roller lead screw 47, screw seat 471 and slider 3 etc. all set up in rotor 21 die cavity, consequently, the utility model discloses a numerical control facing head has that axial dimension is little, outward appearance design is pleasing to the eye, light in weight, spare part compact structure, save advantages such as space.

Example two

The utility model discloses in, numerical control facing head is when processing straight hole, radial movement is not done to slider 3, another working method of U axle is for not doing feed motion promptly, servo motor 41 does not take place to rotate according to the instruction, then the band pulley, worm wheel 45 worm 46, rotatory planet carrier 51 is all motionless, be processing straight hole this moment, the lathe main shaft in the lathe headstock 8 drives drive rotor 22 through main shaft terminal surface key and rotates, drive rotor 22 is connected with drive bevel gear 63 through eighth screw, therefore, drive rotor 22 drives through drive bevel gear 63 and takes place to rotate with the planet tooth 64 that drive bevel gear 63 meshed together, wherein, planet tooth 64 distributes on the circumference of static planet carrier 54, and static planet carrier 54 is connected with stator 1 through stop pin 55, therefore static planet carrier 54 can't take place to rotate, planet tooth 64 meshes with pair bevel gear 53, because this planet gear 64 can drive pair bevel gear 53 together to rotate when rotating, simultaneously, pair bevel gear 53 meshes with planet bevel gear 52 again, bevel gear 61 establishes on the rotor connecting axle 61, when pair bevel gear 53 meshes with planet gear 52, thereby it can not be rotatory bevel gear to drive the radial movement together with planet gear 61, thereby it can realize the synchronous rotation bevel gear of the slider 3 and not rotating together with the rotation bevel gear.

It should be noted that, after the driving bevel gear 63 is driven by the driving rotor 22 to rotate, the power is transmitted to the bevel gear ring 61 one by one, wherein the planet gear 64, the duplex bevel gear ring 53 and the planet bevel gear 52 act as intermediate gears, and the power is transmitted to the bevel gear ring 61, so that the rotation direction is changed, but the transmission ratio is not changed.

The above-mentioned embodiments, further detailed description of the objects, technical solutions and advantages of the present invention, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the scope of the present invention.

Claims

1. A numerical control facing head in a conical gear planetary mechanism is characterized by comprising:

the connecting mechanism comprises a driving rotor (22), a rotor connecting shaft (23) and a rotor (21), a rectangular guide rail is arranged on the rotor (21), the rotor connecting shaft (23) is connected with the rotor (21) through a first screw, and the driving rotor (22) is connected with the rotor connecting shaft (23) through a second screw;

the sliding block (3) is arranged in the rectangular guide rail and is connected with a cutter (31);

the stator (1) is arranged on one side, away from the cutter (31), of the connecting mechanism, and the other end of the stator (1) is connected with a machine tool spindle box (8) through a connecting piece;

the main shaft in the machine tool spindle box (8) is connected with the driving rotor (22) through a main shaft end face key, the machine tool spindle box (8) is started, the driving rotor (22) and the rotor connecting shaft (23) drive the rotor (21) and the cutter (31) to rotate around the axis of the main shaft in the machine tool spindle box (8) in the stator (1), and the cutter (31) rotates.

2. The central numerical control facing head of a bevel gear planetary mechanism according to claim 1, further comprising a transmission system, wherein the transmission system comprises an ac servo motor (41), a driving pulley (42), a synchronous belt (43), a driven pulley (44), a worm gear (45), a worm (46), a central planetary mechanism of a bevel gear, a bevel gear pair and a planetary roller screw (47), the ac servo motor (41) is connected with the driving pulley (42), the driving pulley (42) is in transmission connection with the driven pulley (44) through the synchronous belt (43), the driven pulley (44) is in transmission connection with the worm (46), the worm gear (45) is engaged with the worm (46) and the worm gear (45) is in transmission connection with the central planetary mechanism of the bevel gear, the central planetary mechanism is in transmission connection with the bevel gear pair to drive the planetary roller screw (47) in transmission connection with the bevel gear pair to rotate, the planetary roller screw (47) is fixedly connected with the slider (3) through a third screw and a positioning block (472), and the planetary roller screw (47) can drive the planetary roller (47) to rotate when the slider (3) moves linearly.

3. A central numerical control facing head of a conical gear planetary mechanism according to claim 2, characterized in that the central planetary mechanism comprises a rotating planet carrier (51), a plurality of planet bevel gears (52) and a double bevel ring gear (53), and the bevel gear pair comprises a bevel ring gear (61) and a bevel gear (62) engaged with the bevel ring gear (61);

rotatory planet carrier (51) with worm (46) transmission is connected, and a plurality of planet bevel gear (52) evenly distributed be in on rotatory planet carrier (51), planet bevel gear (52) are used for driving bevel gear pair, rotatory planet carrier (51) are established through bearing (56) cover on rotor connecting axle (23), planet bevel gear (52) simultaneously with antithetical couplet bevel gear ring (53), bevel gear ring (61) meshing, bevel gear ring (61) with planet bevel gear (52) transmission is connected, bevel gear ring (61) drive bevel gear (62) are rotatory and are used for driving planet roller lead screw (47).

4. The centrally-mounted numerical control facing head of a conical gear planetary mechanism according to claim 3, characterized in that the centrally-mounted conical gear planetary mechanism further comprises a static planet carrier (54) and a stop pin (55), the static planet carrier (54) is fixedly connected with the stator (1) through the stop pin (55), and a gap exists between an inner hole of the static planet carrier (54) and the rotor connecting shaft (23).

5. The centrally located numerical control facing head in a bevel gear planetary gear set according to claim 4, wherein the bevel gear pair further comprises a drive bevel gear (63) and planet teeth (64) meshing with the drive bevel gear (63), and a plurality of the planet teeth (64) are circumferentially distributed in the stationary planet carrier (54) and mesh with the double bevel ring gear (53).

6. The centrally-mounted numerical control facing head of a bevel gear planetary mechanism according to claim 1, characterized in that a side of the cutter (31) close to the rotor (21) is provided with a cutter seat (33), the cutter (31) is connected with the cutter seat (33) through a cutter holder (32), and a side of the cutter seat (33) facing the sliding block (3) is provided with a connecting block for connecting with a T-shaped groove.

7. The centrally-mounted numerical control facing head of a conical gear planetary mechanism according to claim 1, wherein the connecting member is a flange plate (7), the stator (1) is connected with the flange plate (7) through a fifth screw, and the flange plate (7) is connected with the spindle box (8) of the machine tool through a sixth screw.

8. The centrally-mounted numerical control facing head of the bevel gear planetary mechanism according to claim 2, further comprising an external encoder system, wherein the external encoder system is arranged in a radial cavity of the stator (1), and the external encoder system comprises a position detection encoder, and the position detection encoder is connected with the stator (1) through a fourth screw.

9. The centrally-mounted numerical control facing head of the conical gear planetary mechanism according to claim 8, further comprising a switch system, wherein the switch system is arranged in a radial cavity of the stator (1), the switch system comprises a travel switch and a travel switch lead screw pair, and one side of the travel switch lead screw pair, which is close to the external encoder system, is in transmission connection with one end of the worm (46) through a synchronous belt transmission.