CN113042784B

CN113042784B - Mould drill bit supporting and driving device for mould manufacturing and processing

Info

Publication number: CN113042784B
Application number: CN202110275726.6A
Authority: CN
Inventors: 裘钧; 李军
Original assignee: Taizhou University
Current assignee: Taizhou University
Priority date: 2021-03-15
Filing date: 2021-03-15
Publication date: 2022-07-26
Anticipated expiration: 2041-03-15
Also published as: CN113042784A

Abstract

The invention discloses a mold drill bit supporting and driving device for mold manufacturing and machining, which comprises a shell, a rotary seat, a motor, a planetary gear mechanism, a braking mechanism and a transmission shaft, wherein the rotary seat is relatively rotatably arranged on the shell, the shell is arranged on a movable arm of a mechanical arm or a machine tool, a mold machining drill bit is arranged at the lower end of the rotary seat, the planetary gear mechanism is arranged on the shell and the rotary seat, the braking mechanism and the transmission shaft are both arranged on the shell, the motor is fixed at the upper end of the shell through a supporting rod, a rotor of the motor is connected with the transmission shaft, a chuck is arranged at the lower end of the rotary seat, and a clamping groove is formed at the lower end of the chuck. The transmission system of the drill bit is set to be the planetary gear mechanism and the brake mechanism, so that the transmission efficiency is high, the energy loss is small, the maximum resistance borne by the drill bit can be set, the drill bit and the mold are prevented from being damaged due to large stress of the drill bit, and the drilling quality of the mold is greatly improved.

Description

Mould is made processing and is supported drive arrangement with mould drill bit

Technical Field

The invention relates to the technical field of mold production and processing, in particular to a mold drill bit supporting and driving device for mold manufacturing and processing.

Background

In short, the mold is a tool for manufacturing a molded article, the tool is composed of various parts, different molds are composed of different parts, the processing of the shape of the article is realized mainly by changing the physical state of the molded material, and the tool can make a blank into a workpiece with a specific shape and size under the action of external force, and is widely used for blanking, die forging, cold heading, extrusion, powder metallurgy part pressing, pressure casting, and the molding processing of compression molding or injection molding of products such as engineering plastics, rubber, ceramics and the like.

Mould processing can improve production machining efficiency greatly, can improve product quality's stability simultaneously, the mould is owing to constantly bear the impact in production and processing, effects such as high temperature and high pressure, therefore the mould material itself needs to have high intensity, and in order to guarantee product appearance quality, the mould still needs to have very high precision, consequently when holing to the mould, the drill bit need bear higher resistance, the drilling difficulty, often damage the drill bit, and the drilling can lead to whole mould to scrap if there is the problem, consequently, need for a drill bit to support drive arrangement and solve above-mentioned problem urgently.

Disclosure of Invention

The present invention is directed to a mold drill supporting and driving device for manufacturing and processing a mold, which solves the above problems.

In order to achieve the purpose, the invention provides the following technical scheme:

a mold drill bit supporting and driving device for mold manufacturing and processing comprises a shell, a rotary seat and a motor, and further comprises a planetary gear mechanism, a brake mechanism and a transmission shaft, wherein the rotary seat is mounted on the shell in a relatively rotating manner, the shell is mounted on a movable arm of an mechanical arm or a machine tool, a mold processing drill bit is mounted at the lower end of the rotary seat, the planetary gear mechanism is mounted on the shell and the rotary seat, the brake mechanism and the transmission shaft are mounted on the shell, the motor is fixed at the upper end of the shell through a support rod, a rotor of the motor is connected with the transmission shaft, a chuck is arranged at the lower end of the rotary seat, a clamping groove is formed in the lower end of the chuck, the brake mechanism is mounted in the shell above a check ring, the brake mechanism comprises a pressure ring, a guide post and a hydraulic cylinder, the pressure ring is annular and is mounted at the upper end of a gear ring, and the size of the section of the pressure ring is the same as that of the gear ring, the lower extreme of clamping ring is provided with the third friction disc, the clamping ring upper end equipartition has four guide posts, be provided with the connecting block between the guide post, every the guide hole has all been seted up on the casing of guide post and connecting block correspondence top, and the guide post is installed in the guide hole, the guide hole top that the connecting block corresponds is provided with the pneumatic cylinder, the pneumatic cylinder is installed in the casing upper end, and the telescopic link in the pneumatic cylinder passes the guide hole and is connected with the connecting block.

As a further scheme of the invention: the shell is of a cylindrical hollow structure with an opening at the lower end, a rotary drum is arranged in the middle of the upper end of the shell, the lower end of the rotary drum penetrates through the upper end face of the shell, a limiting ring is arranged on the inner side of the lower end of the shell and clamped on the inner wall of the lower end of the shell, a retaining ring is arranged in the middle of the inner side of the shell, the retaining ring and the limiting ring are both of circular ring sheet structures, and a rotary seat is arranged in the shell between the retaining ring and the limiting ring.

As a further scheme of the invention: both ends all are provided with first step groove about the roating seat outside, install first bearing in the first step groove, two the outer lane of first bearing is installed in the casing, the outer lane and the shells inner wall direct contact of first bearing, roating seat and casing non-direct contact, the upper end of roating seat is provided with the stand, and the stand is annular equipartition in the upper end of roating seat, the bottom of stand is provided with the base, and the upper end of stand is provided with the draw-in groove.

As a further scheme of the invention: the planetary gear mechanism is arranged in the shell above the retainer ring and comprises a gear ring, a planet wheel and a sun wheel, the gear ring is arranged at the upper end of the retainer ring, and the outer edge of the gear ring is in clearance fit with the inner wall of the shell.

As a further scheme of the invention: the planet wheel corresponds and installs on the stand on the roating seat, the planet carrier of planet wheel has been constituted between roating seat and the stand, planet wheel and ring gear meshing, through the installation of second bearing between planet wheel and the stand, the inner circle suit of second bearing is on the stand, and the base provides the location support for the second bearing, the planet wheel suit is on the outer lane of second bearing, the second bearing top all is provided with the snap ring, the snap ring is installed in the draw-in groove on the stand.

As a further scheme of the invention: the sun wheel is arranged between the planet wheels, the sun wheel is meshed with all the planet wheels at the same time, and the sun wheel is arranged at the lower end of the transmission shaft.

As a further scheme of the invention: the upper end and the lower end of the gear ring are both provided with second friction plates, and the upper end face of the retainer ring is provided with a first friction plate.

As a further scheme of the invention: the transmission shaft is provided with a second stepped groove, a third bearing is arranged in the second stepped groove, an outer ring of the third bearing is matched with the rotary drum, the upper end of the transmission shaft is provided with a connecting rod, the transmission shaft is connected with a rotor of the motor through the connecting rod, and the connecting rod is a flexible rod.

Compared with the prior art, the invention has the beneficial effects that: the transmission system of the drill bit is set to be a planetary gear mechanism and a brake mechanism, the transmission efficiency is high, the energy loss is small, the gear ring is clamped through the brake mechanism, the gear ring cannot rotate, the sun gear rotates under the driving of the motor and then drives a planetary gear meshed with the sun gear to rotate, the planetary gear is meshed with the gear ring and revolves around the sun gear while rotating, so that the rotary base is driven to rotate through the upright post, the drill bit arranged below is driven to rotate after the rotary base rotates, when the drill bit is accidentally stressed too much during working, the resistance of the rotary base is increased, meanwhile, the torque applied to the gear ring through the planetary gear is increased, when the gear ring bears the torque applied by the planetary gear and is larger than the friction resistance torque, the gear ring rotates, the rotary base and the drill bit stops rotating, and the maximum resistance borne by the drill bit can be set by adjusting the pressure of the brake mechanism on the gear ring, the drill bit and the die are prevented from being damaged due to the fact that the drill bit is stressed greatly, and the quality of die drilling is improved greatly.

Drawings

Fig. 1 is a schematic perspective view of a mold drill supporting and driving device for mold manufacturing.

Fig. 2 is an exploded perspective view of a three-dimensional structure of a mold drill support driving device for mold manufacturing.

Fig. 3 is an exploded perspective view of a three-dimensional structure of a mold drill support driving device for mold manufacturing.

Fig. 4 is a schematic sectional view showing a housing of the mold drill supporting and driving device for mold manufacturing.

Fig. 5 is a schematic perspective view of a rotary base in the mold drill supporting and driving device for mold manufacturing.

In the figure: 1. a housing; 2. a rotating base; 3. a planetary gear mechanism; 4. a braking mechanism; 5. a drive shaft; 6. a motor; 11. a limiting ring; 12. a retainer ring; 13. a first friction plate; 14. a rotating drum; 15. a guide hole; 21. a first step groove; 22. a column; 23. a base; 24. a card slot; 25. a chuck; 26. a clamping groove; 27. a first bearing; 31. a ring gear; 32. a second friction plate; 33. a planet wheel; 34. a second bearing; 35. a snap ring; 36. a sun gear; 41. pressing a ring; 42. a guide post; 43. connecting blocks; 44. a third friction plate; 45. a hydraulic cylinder; 46. a telescopic rod; 51. a second stepped groove; 52. a third bearing; 53. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a mold drill supporting and driving device for mold manufacturing includes a housing 1, a rotary base 2, a planetary gear mechanism 3, a brake mechanism 4 and a transmission shaft 5, the rotary seat 2 is relatively rotatably arranged on a shell 1, the shell 1 is arranged on a mechanical arm or a movable arm of a machine tool, the shell 1 is driven to move by a mechanical arm and a movable arm of a machine tool, a mold processing drill bit is arranged at the lower end of the rotary seat 2, used for processing a die to be processed, the planetary gear mechanism 3 is arranged on the shell 1 and the rotating seat 2, the brake mechanism 4 and the transmission shaft 5 are both arranged on the shell 1, the planetary gear mechanism 3 and the transmission shaft 5 are used for transmitting torque to the drill bit to drive the drill bit to rotate, so as to machine the mould, and the brake mechanism 4 is used for limiting the maximum torque of the drill bit and avoiding damaging the drill bit and the mould when the drill bit is clamped.

As shown in fig. 4, the housing 1 is a cylindrical hollow structure with an open lower end, a rotary drum 14 is arranged in the middle of the upper end of the housing 1, the lower end of the rotary drum 14 passes through the upper end surface of the housing 1, a transmission shaft 5 is installed in the rotary drum 14, a motor 6 is installed at the upper end of the rotary drum 14, the motor 6 is fixed at the upper end of the housing 1 through a support rod, a rotor of the motor 6 is connected with the transmission shaft 5, the transmission shaft 5 is driven to rotate by the motor 6, a limit ring 11 is arranged inside the lower end of the housing 1, the limit ring 11 is clamped on the inner wall of the lower end of the housing 1, a retainer ring 12 is arranged in the middle of the inner side of the housing 1, the retainer ring 12 and the limit ring 11 are both in a circular sheet structure, a rotary base 2 is installed in the housing 1 between the retainer ring 12 and the limit ring 11, first step grooves 21 are arranged at both the upper and lower ends of the outer side of the rotary base 2, a first bearing 27 is installed in the first step groove 21, the outer rings of the two first bearings 27 are installed in the housing 1, the outer rings of the first bearings 27 are in direct contact with the inner wall of the housing 1, the rotary base 2 is not in direct contact with the housing 1, so that the rotary base 2 is rotatably installed in the housing 1 through the first bearings 27, and the limit ring 11 can limit the first bearings 27 in the housing 1, so that the rotary base 2 is limited in the housing 1.

As shown in fig. 5, the upper end of roating seat 2 is provided with four stands 22, and four stands 22 are the annular equipartition in the upper end of roating seat 2, the bottom of stand 22 is provided with base 23, and the upper end of stand 22 is provided with draw-in groove 24, the lower extreme of roating seat 2 is provided with chuck 25, chuck 25 is used for the centre gripping drill bit, and double-layered groove 26 has been seted up to the lower extreme of chuck 25, and the upper end of drill bit is inserted and is fastened in double-layered groove 26, drives the drill bit through the rotation of roating seat 2 and rotates to the mould is processed.

The planetary gear mechanism 3 and the brake mechanism 4 are installed in the casing 1 above the retainer ring 12, the planetary gear mechanism 3 includes a gear ring 31, a planetary gear 33 and a sun gear 36, the gear ring 31 is installed at the upper end of the retainer ring 12, the outer edge of the gear ring 31 is in clearance fit with the inner wall of the casing 1, so that the gear ring 31 can freely rotate inside the casing 1, the planetary gear 33 is correspondingly installed on four columns 22 on the rotary base 2, a planetary carrier of the planetary gear 33 is formed between the rotary base 2 and the columns 22, the planetary gear 33 is meshed with the gear ring 31 and can be mutually transmitted, the planetary gear 33 and the columns 22 are installed through a second bearing 34, the inner ring of the second bearing 34 is sleeved on the columns 22, the base 23 provides positioning support for the second bearing 34, the installation accuracy of the second bearing 34 and the planetary gear 33 is ensured, the planetary gear 33 is sleeved on the outer ring of the second bearing 34, make planet wheel 33 can free rotation on stand 22, second bearing 34 top all is provided with snap ring 35, snap ring 35 installs in the draw-in groove 24 on stand 22, can prevent after the installation of snap ring 35 that second bearing 34 from droing from stand 22, improves planetary gear mechanism 3's stability, sun gear 36 sets up between four planet wheels 33, and sun gear 36 meshes with four planet wheels 33 simultaneously, can drive four planet wheels 33 simultaneously after sun gear 36 rotates and rotate, sun gear 36 installs the lower extreme at transmission shaft 5, drives sun gear 36 through transmission shaft 5 and rotates.

Arresting mechanism 4 includes clamping ring 41, guide post 42 and pneumatic cylinder 45, clamping ring 41 is the ring shape, and clamping ring 41 is installed in ring gear 31 upper end, and clamping ring 41 is the same with ring gear 31 cross sectional shape size, clamping ring 41 upper end equipartition has four guide post 42, be provided with connecting block 43 between the guide post 42, every guide post 42 and connecting block 43 correspond the guide hole 15 has all been seted up on the casing 1 of top, and guide post 42 installs in guide hole 15 to can slide from top to bottom in guide hole 15, thereby be connected clamping ring 41 with casing 1, the guide hole 15 top that connecting block 43 corresponds is provided with pneumatic cylinder 45, pneumatic cylinder 45 installs in casing 1 upper end, and telescopic link 46 in the pneumatic cylinder 45 passes guide hole 15 and is connected with connecting block 43, and telescopic link 46 stretches out and draws back from top to bottom can drive clamping ring 41 up-and-down motion, and telescopic link 46 promotes 41 downstream and can press from both sides ring gear 31 clamping ring, the gear ring 31 can not rotate, the motor 6 drives the sun gear 36 to rotate through the transmission shaft 5, the sun gear 36 drives the planet gear 33 meshed with the sun gear to rotate after rotating, when the gear ring 31 is pressed by the pressing ring 41 and can not rotate, the planet gear 33 is meshed with the gear ring 31 and revolves around the sun gear 36 while rotating, so that the rotary base 2 is driven to rotate through the upright post 22, the drill bit arranged below is driven to rotate after the rotary base 2 rotates, when the drill bit is accidentally stressed too much during working, the resistance of the rotary base 2 is increased, meanwhile, the torque applied to the gear ring 31 through the planet gear 33 is increased, when the gear ring 31 bears the torque applied by the planet gear 33 and is larger than the friction resistance torque of the pressing ring 41, the gear ring 31 can rotate, the rotary base 2 and the drill bit can stop rotating, the friction resistance of the pressing ring 41 to the gear ring 31 is changed by changing the pressure of the hydraulic cylinder 45 to the pressing ring 41, therefore, through setting up the pressure of pneumatic cylinder 45 to clamping ring 41, can set up the maximum resistance that the drill bit bore, prevent that drill bit atress is great to lead to drill bit and mould impaired, the upper and lower both ends of ring gear 31 all are provided with second friction disc 32, and the up end of retaining ring 12 is provided with first friction disc 13, and the lower extreme of clamping ring 41 is provided with third friction disc 44, through set up the friction disc on ring gear 31, retaining ring 12 and clamping ring 41, increases the frictional force between ring gear 31 and clamping ring 41, retaining ring 12, also can prevent ring gear 31, retaining ring 12 and clamping ring 41 wearing and tearing, and periodic replacement friction disc can.

The transmission shaft 5 is provided with a second stepped groove 51, a third bearing 52 is arranged in the second stepped groove 51, the outer ring of the third bearing 52 is matched with the rotary drum 14, the upper end of the transmission shaft 5 is provided with a connecting rod 53, the transmission shaft 5 is connected with the rotor of the motor 6 through the connecting rod 53, the connecting rod 53 is a flexible rod, vibration is prevented from being transmitted to the sun gear 36 through the transmission shaft 5 when the motor 6 rotates, transmission abrasion between the sun gear 36 and the planet gear 33 is reduced, and the reliability of the planetary gear mechanism 3 is improved.

In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

Although the preferred embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims

1. A mold drill bit supporting and driving device for mold manufacturing and machining comprises a shell (1), a rotary seat (2) and a motor (6), and is characterized by further comprising a planetary gear mechanism (3), a braking mechanism (4) and a transmission shaft (5), wherein the rotary seat (2) is installed on the shell (1) in a relative rotating mode, the shell (1) is installed on a movable arm of a mechanical arm or a machine tool, a mold machining drill bit is installed at the lower end of the rotary seat (2), the planetary gear mechanism (3) is installed on the shell (1) and the rotary seat (2), the braking mechanism (4) and the transmission shaft (5) are both installed on the shell (1), the motor (6) is fixed at the upper end of the shell (1) through a supporting rod, a rotor of the motor (6) is connected with the transmission shaft (5), a chuck (25) is arranged at the lower end of the rotary seat (2), and a clamping groove (26) is formed at the lower end of the chuck (25), brake mechanism (4) are installed in casing (1) of retaining ring (12) top, brake mechanism (4) are including clamping ring (41), guide post (42) and pneumatic cylinder (45), clamping ring (41) are the ring shape, and clamping ring (41) are installed in ring gear (31) upper end, and clamping ring (41) are the same with ring gear (31) cross sectional shape size, and the lower extreme of clamping ring (41) is provided with third friction disc (44), clamping ring (41) upper end equipartition has four guide post (42), be provided with connecting block (43) between guide post (42), every guide post (42) and connecting block (43) have all seted up guide hole (15) on corresponding casing (1) of top, and guide post (42) are installed in guide hole (15), guide hole (15) top that connecting block (43) correspond is provided with pneumatic cylinder (45), pneumatic cylinder (45) are installed in casing (1) upper end, an expansion rod (46) in the hydraulic cylinder (45) passes through the guide hole (15) and is connected with the connecting block (43).

2. The mold drill supporting and driving device for the mold manufacturing and processing according to claim 1, wherein the housing (1) is a cylindrical hollow structure with an open lower end, the middle part of the upper end of the housing (1) is provided with a rotary drum (14), the lower end of the rotary drum (14) penetrates through the upper end surface of the housing (1), the inner side of the lower end of the housing (1) is provided with a limit ring (11), the limit ring (11) is clamped on the inner wall of the lower end of the housing (1), the middle part of the inner side of the housing (1) is provided with a retainer ring (12), the retainer ring (12) and the limit ring (11) are both in circular ring sheet structures, and the rotary seat (2) is installed in the housing (1) between the retainer ring (12) and the limit ring (11).

3. The mold drill supporting and driving device for the mold manufacturing and processing according to claim 2, wherein the first step grooves (21) are formed in the upper end and the lower end of the outer side of the rotary seat (2), the first bearings (27) are installed in the first step grooves (21), the outer rings of the two first bearings (27) are installed in the shell (1), the outer rings of the first bearings (27) are in direct contact with the inner wall of the shell (1), the rotary seat (2) is not in direct contact with the shell (1), the upright columns (22) are arranged at the upper end of the rotary seat (2), the upright columns (22) are annularly and uniformly distributed at the upper end of the rotary seat (2), the base (23) is arranged at the bottom end of the upright column (22), and the clamping grooves (24) are formed in the upper end of the upright column (22).

4. A mould drill bit supporting and driving device for mould manufacturing according to claim 3, characterised in that the planetary gear mechanism (3) is mounted in the housing (1) above the collar (12), that the planetary gear mechanism (3) comprises a ring gear (31), a planet wheel (33) and a sun wheel (36), that the ring gear (31) is mounted at the upper end of the collar (12), and that the outer edge of the ring gear (31) is in clearance fit with the inner wall of the housing (1).

5. The mold drill bit supporting and driving device for the mold manufacturing and processing is characterized in that the planetary gear (33) is correspondingly installed on the upright post (22) on the rotary base (2), a planetary carrier of the planetary gear (33) is formed between the rotary base (2) and the upright post (22), the planetary gear (33) is meshed with the gear ring (31), the planetary gear (33) and the upright post (22) are installed through the second bearing (34), the inner ring of the second bearing (34) is sleeved on the upright post (22), the base (23) provides positioning support for the second bearing (34), the planetary gear (33) is sleeved on the outer ring of the second bearing (34), a clamping ring (35) is arranged above the second bearing (34), and the clamping ring (35) is installed in the clamping groove (24) on the upright post (22).

6. A mould-making-process mould-drill-bit supporting and driving arrangement according to claim 4, characterised in that the sun wheel (36) is arranged between the planet wheels (33), that the sun wheel (36) meshes with all the planet wheels (33) simultaneously, and that the sun wheel (36) is mounted on the lower end of the drive shaft (5).

7. The mold drill support driving device for mold manufacturing according to claim 4, wherein the gear ring (31) is provided with second friction plates (32) at both upper and lower ends thereof, and the retainer ring (12) is provided with a first friction plate (13) at an upper end surface thereof.

8. The mold drill supporting and driving device for mold manufacturing according to claim 2, wherein the transmission shaft (5) is provided with a second stepped groove (51), the second stepped groove (51) is provided with a third bearing (52), an outer ring of the third bearing (52) is engaged with the rotary drum (14), the transmission shaft (5) is provided with a connecting rod (53) at an upper end, the transmission shaft (5) is connected with a rotor of the motor (6) through the connecting rod (53), and the connecting rod (53) is a flexible rod.