TWI822541B - Single power source wavelet low-frequency axial fluctuation milling tool holder composite mechanism - Google Patents

Abstract

This creation includes input shaft, coupling, first reduction group, planetary reduction group, radial cam group, offset transmission group and output shaft. The input shaft is driven by a single power source. The input shaft and the output shaft are mainly engaged with the square bolt slots and square bolts and rotate in the same direction and at the same speed. The first reduction group is driven by the drive gear of the input shaft. , causing the internal gear to decelerate and rotate in reverse, connect the internal gear to the ring gear of the planetary reduction group through a coupling, and then engage the planetary gear with the sun gear of the input shaft through a two-degree-of-freedom differential, causing the planetary gear to revolve and drive the planet carrier. Rotate at low speed; then the planet carrier is combined with the axial cylindrical cam group to drive the square bolt at the end of the output shaft, causing the output shaft to move repeatedly in the axial low-frequency wavelet in the square bolt groove at the end of the input shaft. The output shaft is allowed to perform high-speed rotation and axial wavelet reciprocating motion at the same time, providing a mechanical solution to the problems caused by interruption of continuous chips when processing equipment cuts highly viscous materials.

Description

Single power source wavelet low-frequency axial fluctuation milling tool holder composite mechanism

This invention relates to a driving device, specifically a single power source wavelet low-frequency axial fluctuation milling tool holder composite mechanism that can mechanically interrupt continuous cutting chips.

When the workpiece is processed, continuous strip-shaped cutting chips will inevitably be produced. Continuous strips of cutting chips will not only wrap around the workpiece or tool, causing the workpiece to be unable to be processed, reducing the machining accuracy of the workpiece, damaging the tool, blocking the cutting fluid, or damaging the tool, etc.

In order to process highly viscous materials such as aluminum alloys, which are metals that are more likely to produce continuous strip-shaped cutting chips, existing processing equipment needs to purchase a controller to control the movement of the tool with software to interrupt the continuous strip-shaped cutting chips. to interrupt the continuous strip of chips. Only using software to control tool movement requires money to purchase controllers and software, which increases the cost of production and processing equipment.

Therefore, in order to improve the existing processing equipment and reduce the production cost of the processing equipment, it is necessary to improve the structure of the existing processing equipment.

In order to solve various problems caused by the interruption of continuous cutting chips by software control in existing processing equipment, this invention provides a single power source wavelet low-frequency axial fluctuation milling tool seat composite mechanism, which can achieve the purpose of mechanically interrupting continuous cutting chips.

The single power source wavelet low-frequency axial wave milling tool holder composite mechanism proposed by this creation to solve the technical problem includes: a casing with a hollow interior; An input shaft includes a shaft body, a driving gear, a sun gear and a plurality of square bolt grooves; the shaft body is rod-shaped and can rotate through the casing; the driving gear, the sun gear and the The shaft body is coaxially fixed and can rotate together; each square bolt groove is provided on the shaft body and extends along the shaft body; a coupling member is located in the casing and is coaxially installed on the input shaft and Can rotate with the input shaft as the axis; a first reduction group, which is located in the casing and includes a plurality of intermediate gears and an internal gear; the plurality of intermediate gears surround the driving gear, and each of the intermediate gears can Rotates at a fixed position and meshes with the driving gear; the internal gear surrounds the plurality of intermediate gears, meshes with each of the intermediate gears, and can rotate around the plurality of intermediate gears; a planetary reduction group located in the casing It also includes a planet carrier, a plurality of planet gears and a ring gear; the planet carrier can rotate with the input shaft as the axis; the plurality of planet gears surround the sun gear, and each planet gear is rotatably combined with the planet The ring gear surrounds the plurality of planetary gears, meshes with each of the planetary gears, and can rotate around the plurality of planetary gears; the internal gear and the ring gear are fixed to the coupling member Opposite sides, and the internal gear and the ring gear can rotate together with the coupling member; an axial cam group including a cylindrical cam and a follower; the cylindrical cam includes a cylindrical body and a groove; The cylindrical body is coaxially coupled to the planet carrier so that the cylindrical cam can rotate together with the planet carrier. The groove surrounds the outer circumferential surface of the cylindrical body and is wavy; the follower includes a plurality of holes inserted into the groove. rollers, and each roller can roll along the groove to drive the driven member to reciprocate along the extension direction of the input shaft; and an output shaft that can be rotated through and combined with the driven member And it includes a set of holes and a plurality of square bolts protruding from the peripheral surface of the set holes; the output shaft is coaxially placed on the shaft body with the set holes and can follow the axial cam group. Repeated axial movement along the shaft; a plurality of square bolts are respectively engaged with a plurality of square bolt slots so that the output shaft and the input shaft can rotate together; Among them, the input shaft is driven by a single power source, and the shaft body of the input shaft drives the output shaft to rotate; in addition, the driving gear of the input shaft drives the first reduction group, causing the internal gear to decelerate and rotate in reverse. The internal gear is connected to the ring gear of the planetary reduction group, and then meshes with the sun gear of the input shaft through a two-degree-of-freedom differential, so that the planetary gear revolution drives the planet carrier to rotate at low speed; the planet carrier and the axial cam group Driven by the plurality of planetary gears to decelerate and rotate relative to the input shaft, the axial cam set then drives the follower and the output shaft to perform axial reciprocating motion.

The single power source wavelet low-frequency axial wave milling tool holder composite mechanism, wherein the planet carrier includes a plurality of convex circle joints protruding toward the axial convex circle group; the convex circle includes a convex circle toward the The planetary deceleration group has a plurality of protruding planet carrier joint portions, and the plurality of planet carrier joint portions are respectively combined with a plurality of convex circular joint portions.

In the single power source wavelet low-frequency axial wave milling cutter seat composite mechanism, the driven member includes a plurality of support arms protruding toward the cylindrical cam; a plurality of rollers are rotatably combined with a plurality of rollers respectively. This support arm.

The single power source wavelet low-frequency axial wave milling tool holder composite mechanism, wherein the follower includes an output shaft joint; the output shaft joint is annular, and the two support arms are connected from the output shaft joint It is protrudingly provided that the output shaft is rotatably inserted through and coupled to the output shaft coupling portion.

In the single power source wavelet low-frequency axial wave milling cutter holder composite mechanism, the output shaft coupling portion can be reciprocally inserted into the casing along the extension direction of the input shaft.

The single power source wavelet low-frequency axial wave milling tool holder composite mechanism has a sliding bearing placed between the output shaft joint and the casing.

The efficiency improvement that can be obtained by the technical means of this invention lies in the single power source wavelet low-frequency axial fluctuation milling tool holder composite mechanism of this invention, which uses the coupling to combine the internal gear of the first reduction group and the ring of the planetary reduction group. Gear, the planetary reduction group is powered by the sun gear and the ring gear at the same time and has two degrees of freedom. The ring gear is used for reverse deceleration, so that the planet carrier rotates at a relatively low speed. The cylindrical cam is driven to rotate together, thereby driving the follower to perform axial reciprocating motion with low frequency and small fluctuation along the extension direction of the input shaft, so that the output shaft can perform high-speed rotation processing while also moving along the input shaft. The axial reciprocating motion of the shaft can interrupt the continuous and strip-shaped chips.

10:Chassis

11: Ring shell

111: Sliding bearing

12:Input end cover

121: Input end bearing cap

20:Input shaft

201:First end

202:Second end

21: Shaft body

22:Driving gear

23:Sun gear

24: Square bolt groove

30:Connecting parts

301: First side

302: Second side

40: First reduction group

42:Intermediate gear

43:Internal gear

50:Planetary reduction group

51:Planet carrier

511:Cam joint part

52: ring set

53:Planetary gear

54: Ring gear

60: Axial cam group

61: Cylindrical cam

611:Cylinder body

612:Trench

613:Planet carrier joint part

62:Follower

621:Output shaft joint

622:Support arm

623:Roller

70:Output shaft

71: Square bolt

Figure 1 is a schematic three-dimensional view of the appearance of a preferred embodiment of this invention.

Figure 2 is a schematic cross-sectional view of a preferred embodiment of this invention.

Figure 3 is a schematic cross-sectional view of another preferred embodiment of the present invention.

Figure 4 is an exploded schematic diagram of the preferred embodiment of the present invention.

Figure 5 is an exploded schematic diagram of the preferred embodiment of the present invention.

Figure 6 is an exploded schematic diagram of the preferred embodiment of the present invention.

Figure 7 is an exploded schematic diagram of the preferred embodiment of the present invention.

Figure 8 is a schematic cross-sectional view of the axial cam group according to the preferred embodiment of this invention.

Figure 9 is a schematic plan view of the axial cam group according to the preferred embodiment of the present invention.

Figure 10 is a schematic plan view of the action of the axial cam group according to the preferred embodiment of the present invention.

Figure 11 is a schematic cross-sectional view of a preferred embodiment of this invention.

In order to understand the technical features and practical effects of this invention in detail, and to realize it according to the content of the invention, the preferred embodiment as shown in the drawings is further described in detail as follows: As shown in Figures 1 to 4, this invention The preferred embodiment of the single power source wavelet low-frequency axial wave milling tool holder composite mechanism includes a casing 10, an input shaft 20, a coupling 30, a first reduction group 40, and a planetary reduction group 50 , an axial cam set 60 and an output shaft 70 .

As shown in FIGS. 1 to 4 , the casing 10 is hollow inside and includes an annular shell 11 and an input end cover 12 . The annular shell 11 includes two opposite ends and a sliding bearing. 111; The input end cover 12 is plate-shaped and is fixedly coupled to one end of the ring housing 11. The input end cover 12 includes an input end bearing cover 121, and a bearing is installed in the input end bearing cover 121.

As shown in FIGS. 1 to 4 and 6 , the input shaft 20 includes an extending direction, a first end 201 and a second end 202 opposite to each other in the extending direction, a shaft body 21 and a driving gear 22 , a sun gear 23 and a plurality of square bolt grooves 24; the shaft body 21 is rod-shaped, and the second end 202 of the input shaft 20 passes through the input end bearing cover 121 of the input end cover 12 and is inserted into the casing 10 inside, and can be rotatably inserted into the casing 10; the driving gear 22, the sun gear 23 and the shaft body 21 are coaxially and integrally fixed, and the driving gear 22 and the sun gear 23 can be connected to the casing 10. The shaft 21 rotates together. A plurality of square bolt grooves 24 are recessed at equal angles on the circumferential surface of the shaft body 21 and extend to the second end 202 of the input shaft 20 .

As shown in FIGS. 1 to 4 , the coupling member 30 includes a first side 301 and a second side 302 that are opposite to each other. The coupling member 30 is located in the casing 10 and is coaxially mounted on the input shaft 20 And it can rotate with this input shaft 20 as an axis|shaft. In the preferred embodiment of the invention, the coupling member 30 is sleeved on the input shaft 20 , and a bearing is provided between the coupling member 30 and the input shaft 20 to provide radial support for the coupling member 30 .

As shown in FIGS. 1 to 6 , the first reduction group 40 is located in the casing 10 and between the coupling member 30 and the input end cover 12 . The first reduction group 40 includes two intermediate gears 42 and an internal gear 43; in application, the first reduction group 40 can include multiple intermediate gears 42.

As shown in FIGS. 1 to 6 , the two intermediate gears 42 surround the driving gear 22 , and each intermediate gear 42 is rotatably coupled to the input end cover 12 ; therefore, each intermediate gear 42 can be fixed in place. position rotation, that is, each intermediate gear 42 can only rotate in place and cannot revolve relative to the driving gear 22; and each intermediate gear 42 meshes with the driving gear 22. The internal gear 43 is annular and surrounds the two intermediate gears 42, meshes with each intermediate gear 42, and can rotate around the two intermediate gears 42; in this invention, the internal gear 43 is fixed to the coupling. The first side 301 of 30 can drive the coupling member 30 to rotate together.

As shown in FIGS. 1 to 6 , the planetary reduction group 50 is located in the casing 10 , and the planetary reduction group 50 and the first reduction group 40 are separated by the coupling 30 . The planetary reduction group 50 includes a planet carrier 51 , a plurality of planetary gears 53 and a ring gear 54 . The planet carrier 51 can rotate around the input shaft 20 . The planet carrier 51 includes a planet arm and three cam coupling parts 511 . The planetary arm is plate-shaped and includes a first side and a second side facing in opposite directions. The second side of the planetary arm faces the coupling member 30; each cam connecting portion 511 is formed from the first side of the planetary arm. Protruding toward the axial cam group 60 , the three cam coupling portions 511 are arranged at equal angles around the input shaft 20 .

As shown in FIGS. 1 to 6 , the plurality of planetary gears 53 are arranged around the sun gear 23 . Each of the planetary gears 53 is rotatably coupled to the rotatable planetary arm of the planet carrier 51 and meshes with the sun gear 23 . ; Therefore, each of the planet gears 53 can revolve around the sun gear 23 of the input shaft 20 along with the planet carrier 51 . The ring gear 54 surrounds the plurality of planetary gears 53 , meshes with each of the planetary gears 53 , and can rotate around the plurality of planetary gears 53 ; in this invention, the ring gear 54 is fixed to the second portion of the coupling 30 The side 302 can rotate together with the coupling member 30 and the internal gear 43 .

As shown in another preferred embodiment of FIG. 3 , a ring sleeve 52 is provided between the planet arm of the planet carrier 51 and the ring shell 11 of the casing 10 . The ring sleeve 52 is between the planet carrier 51 and the ring. Between the shells 11, the planet carrier 51 can be supported radially and the planet carrier 51 can rotate smoothly.

As shown in FIGS. 2 , 4 , and 8 to 10 , the axial cam group 60 is located in the casing 10 and includes a cylindrical cam 61 and a follower 62 . Among them, the cylindrical cam 61 includes a cylindrical body 611, a groove 612 and three planet carrier connecting parts 613; the cylindrical body 611 is cylindrical, and a bearing is provided inside the cylindrical body 611, and the bearing is between the cylindrical body 611 There is a cylindrical body 611 between the shaft body 21 to support the cylindrical cam 61 so that the cylindrical cam 61 and the planet carrier 51 are coaxially arranged; the groove 612 is wavy and surrounds and is recessed in the cylindrical body 611 Outer peripheral surface; each planet carrier coupling portion 613 protrudes from the cylindrical body 611 toward the planetary reduction group 50 , and the three planet carrier coupling portions 613 are respectively coupled to the three cam coupling portions 511 , so that the cylinder of the cylindrical cam 61 The body 611 is the same as the planet carrier 51 The axes are combined to rotate together. In the preferred embodiment of the present invention, the three planet carrier coupling parts 613 are respectively coupled to the three cam coupling parts 511 through three bolts.

As shown in FIG. 2 and FIG. 8 to FIG. 10 , the follower 62 includes an output shaft coupling portion 621 , two support arms 622 and two rollers 623 . The output shaft coupling part 621 is annular; the two support arms 622 protrude from the output shaft coupling part 621 toward the cylindrical cam 61; the two rollers 623 are rotatably coupled to the two support arms 622, and Each roller 623 can roll along the groove 612 to drive the driven member 62 to reciprocate along the axial direction of the input shaft 20 . In the preferred embodiment of the present invention, the output shaft coupling portion 621 can reciprocate along the axial direction of the input shaft 20 and penetrate the sliding bearing 111 of the ring housing 11 of the casing 10 .

As shown in FIGS. 1 , 2 , 7 and 10 , the output shaft 70 is rotatably inserted through the output shaft coupling portion 621 of the follower 62 , and the output shaft 70 includes a set of mounting holes and protrusions. A plurality of square bolts 71 are provided on the peripheral surface of the sleeve hole; the output shaft 70 is coaxially sleeved on the shaft body 21 of the input shaft 20 with the sleeve hole and can move along the shaft body 21; A plurality of the square bolts 71 are respectively engaged with a plurality of the square bolt grooves 24 so that the output shaft 70 is directly driven by the input shaft 20 to rotate together, and the output shaft connecting portion 621 is allowed to drive the output shaft 70 along the axis. Slide linearly back and forth. Specifically, the sliding bearing 111 that is sleeved on the output shaft connecting portion 621 is disposed between the output shaft connecting portion 621 and the ring housing 11 . The sliding bearing 111 supports the output shaft connecting portion 621 of the driven member 62 , causing the output shaft connecting portion 621 to perform axial repetitive linear motion, and the output shaft 70 to perform high-speed rotational motion.

In the preferred embodiment of the present invention, the input shaft 20 includes a plurality of recessed square bolt grooves 24; the output shaft 70 includes a plurality of convex square bolts 71; in application, as long as the input shaft 20 can drive The output shaft 70 rotates together, and the structure of the two is not specifically limited in this invention.

As shown in Figure 11, the first end 201 of the input shaft 20 can be coupled to a power source. When the power source inputs power through the input shaft 20, the power is divided into two flow directions.

First, the input shaft 20 directly drives the output shaft 70 at high speed to drive the output shaft 70 to rotate at high speed. The processing equipment of the present invention can be used to install a cutter on the output shaft 70 and drive the high-speed rotating cutter to process the workpiece.

The second one is transmitted to the ring gear 54 through the internal gear 43 and the coupling member 30 in sequence. As shown in FIG. 10 , the ring gear 54 drives a plurality of planet gears 53 and then drives the planet carrier 51 . If the number of teeth of the driving gear is 28 ^T , the number of teeth of the intermediate gear 42 of the first reduction group 40 is 26 ^T , and the number of teeth of the internal gear 43 is 80 ^T , the reduction ratio of the first reduction group 40 is -1/2.857; the sun The number of teeth of gear 23 is 26 ^T , the number of teeth of each planetary gear 53 of the planetary reduction group 50 is 24 ^T , and the number of teeth of the ring gear 54 is 74 ^T . The reduction ratio of the planetary reduction group 50 is 1/1000; the input speed is 3600rpm, and the planetary arm And the rotational speed of the output shaft 70 is 3.6 rpm, and the rotation directions of the sun gear 23 and the ring gear 54 are opposite, and the tangential speeds of the two are opposite, so that the tangential speed of each planetary gear 53 revolving around the sun gear 23 is slowed down. , causing the planet carrier 51 to rotate at a relatively low speed and slowly driving the cylindrical cam 61 to rotate, and the cylindrical cam 61 slowly driving the driven member 62 and the output shaft 70 slowly along the extension direction of the transmission shaft 20 Ground reciprocating motion.

In this creation, the output shaft 70 is directly driven by the input shaft 20 and can rotate at high speed; the cylindrical cam 61 of the axial cam group 60 is driven by the planet carrier 51 to rotate slowly, and the cylindrical cam 61 drives the driven Only when the member 62 and the output shaft 70 reciprocate slowly along the extension direction of the transmission shaft 20 can the driven member 62 and the output shaft 70 reciprocate along the extension direction of the transmission shaft 20 with low-frequency small fluctuations. ; In this way, when processing with this invention, the cutting state can be slightly changed to interrupt the continuous strip-shaped cutting chips, and thus various problems caused by the continuous strip-shaped cutting chips can be avoided.

The above are only preferred embodiments of the present invention and do not impose any formal restrictions on the present invention. Anyone with ordinary knowledge in the technical field can use the present invention without departing from the scope of the technical solution proposed by the present invention. Equivalent embodiments with partial changes or modifications to the technical content disclosed in the creation, and which do not deviate from the content of the technical solution of this creation, still fall within the scope of the technical solution of this creation.

10:Chassis

11: Ring shell

111: Sliding bearing

12:Input end cover

121: Input end bearing cap

20:Input shaft

21: Shaft body

22:Driving gear

23:Sun gear

24: Square bolt groove

30:Connecting parts

301: First side

302: Second side

40: First reduction group

42:Intermediate gear

43:Internal gear

50:Planetary reduction group

51:Planet carrier

511:Cam joint part

52: ring set

53:Planetary gear

54: Ring gear

60: Axial cam group

61: Cylindrical cam

612:Trench

613:Planet carrier joint part

62:Follower

621:Output shaft joint

70:Output shaft

Claims (6)

A single power source wavelet low-frequency axial wave milling cutter holder composite mechanism, which includes: a casing with a hollow interior; an input shaft including a shaft body, a driving gear, a sun gear and a plurality of square bolt grooves; The shaft is rod-shaped and can be rotated through the casing; the driving gear, the sun gear and the shaft are coaxially fixed and can rotate together; each square bolt groove is provided on the shaft and along the Extending along the shaft body; a coupling member, which is located in the casing, is coaxially installed on the input shaft and can rotate with the input shaft as the axis; a first reduction group, which is located in the casing and It includes a plurality of intermediate gears and an internal gear; the plurality of intermediate gears surround the drive gear, and each intermediate gear can rotate at a fixed position and mesh with the drive gear; the internal gear is annular and surrounds the plurality of drive gears. Intermediate gears mesh with each of the intermediate gears and can rotate around the plurality of intermediate gears; a planetary reduction group, which is located in the casing and includes a planet carrier, a plurality of planet gears and a ring gear; the planet carrier can The input shaft rotates as a center; the plurality of planetary gears surround the sun gear, and each planetary gear is rotatably coupled to the planet carrier and meshes with the sun gear; the ring gear surrounds the plurality of planetary gears and each The planetary gears mesh and can rotate around the plurality of planetary gears; the internal gear and the ring gear are fixed on opposite sides of the coupling, and the internal gear and the ring gear can rotate together with the coupling; a An axial cam set includes a cylindrical cam and a follower; the cylindrical cam includes a cylindrical body and a groove; the cylindrical body is coaxially coupled to the planet carrier so that the cylindrical cam can rotate together with the planet carrier, The groove surrounds the outer circumferential surface of the cylindrical body and is wavy; the follower includes a plurality of rollers inserted into the groove, and each roller can roll along the groove to drive the driven member. The component reciprocates along the extension direction of the input shaft; and An output shaft, which is rotatably coupled to the driven member and includes a set hole and a plurality of square bolts protruding from the peripheral surface of the set hole; the output shaft is coaxial with the set set hole. The ground sleeve is placed on the shaft body and can move along the shaft body with the follower; a plurality of the square bolts are respectively engaged with a plurality of square bolt grooves so that the output shaft and the input shaft can rotate together; Wherein, the input shaft is driven by a single power source, and the shaft body of the input shaft drives the output shaft to rotate; each planetary gear of the planetary reduction group inputs power with two degrees of freedom from the sun gear of the input shaft and the ring gear. ; The planet carrier and the cylindrical cam are driven by the plurality of planetary gears to decelerate and rotate relative to the input shaft, and the cylindrical cam drives the follower and the output shaft to perform axial reciprocating motion. The single power source wavelet low-frequency axial wave milling tool holder composite mechanism according to claim 1, wherein the planet carrier includes a plurality of cam joints protruding toward the axial cam group; the cylindrical cam includes There are a plurality of planet carrier coupling parts protruding toward the planetary reduction group, and the plurality of planet carrier coupling parts are respectively coupled with a plurality of cam coupling parts. The single power source wavelet low-frequency axial wave milling cutter seat composite mechanism as described in claim 1 or 2, wherein the follower includes a plurality of support arms protruding toward the cylindrical cam; a plurality of the rollers can Rotatingly coupled to a plurality of support arms respectively. The single power source wavelet low-frequency axial wave milling tool holder composite mechanism as described in claim 3, wherein the follower includes an output shaft joint; the output shaft joint is annular, and the two support arms are connected from the The output shaft coupling portion is protrudingly provided, and the output shaft is rotatably coupled to the output shaft coupling portion. The single power source wavelet low-frequency axial wave milling tool holder composite mechanism according to claim 4, wherein the output shaft coupling portion can penetrate the casing in a reciprocating manner along the extension direction of the input shaft. The single power source wavelet low-frequency axial wave milling tool holder composite mechanism as described in claim 5, wherein a sliding bearing is placed between the output shaft joint and the casing.

Images