CN211162075U - Multi-shaft drill power head transmission structure - Google Patents

Multi-shaft drill power head transmission structure Download PDF

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Publication number
CN211162075U
CN211162075U CN201922073696.1U CN201922073696U CN211162075U CN 211162075 U CN211162075 U CN 211162075U CN 201922073696 U CN201922073696 U CN 201922073696U CN 211162075 U CN211162075 U CN 211162075U
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CN
China
Prior art keywords
drill
sleeved
shaft
gear
bearing
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Active
Application number
CN201922073696.1U
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Chinese (zh)
Inventor
李一林
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Shandong Yilin Jinggong Technology Co ltd
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Shandong Yilin Jinggong Technology Co ltd
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Priority to CN201922073696.1U priority Critical patent/CN211162075U/en
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Publication of CN211162075U publication Critical patent/CN211162075U/en
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Abstract

The utility model provides a multi-axis drill power head transmission structure, wherein a needle bearing and a first deep groove ball bearing are sleeved on a drill shaft at the installation position of the upper part of the drill shaft and a box body, bearing seats are arranged outside the two bearings, and the bearing seats are fixed on the box body; a gasket is arranged at the lower side of the first deep groove ball bearing; a gear is sleeved on the drill shaft at the lower side of the washer; a spring is sleeved on the drill shaft at the lower side of the gear; a spring retainer ring is fixed between the spring and the drill spindle at the lower side of the spring; and a second deep groove ball bearing is sleeved on the drilling shaft at the installation position of the lower parts of the drilling shaft and the box body, a piston is sleeved outside the second deep groove ball bearing, and the piston is fixed on the drilling shaft through a screw. The utility model discloses well bearing directly with bore the axle cooperation, make the diameter of boring the axle reach 20mm, can carry out subsequent thermal treatment process, and thermal treatment warp less, make the mechanical properties of boring the axle obtain improving greatly, the bearing capacity of the improvement boring spindle that can double.

Description

Multi-shaft drill power head transmission structure
Technical Field
The utility model belongs to the technical field of machining equipment, specifically belong to a multi-axis drill unit head transmission structure.
Background
The multi-spindle drill power head is mainly used for numerical control (CNC) five-face drill processing centers, CNC six-face drill processing centers, CNC cutting machines and other woodworking equipment. In the multi-shaft drill power head transmission structure in the prior art, the drill shafts are in transmission by matching of gears and internal splines of the drill shafts, the bearings are connected with the gear sleeves and are limited by the size of a space structure, and the center distance between the drill shafts can only be 32mm according to the woodworking standard, so that the diameter of the drill shafts can not be larger than 16mm, the shafts are in a slender shape and are easy to deform after heat treatment, the mechanical property can not reach the best, the drill shafts are easy to bend by external force during use, the failure rate is high, and the use is influenced.
Disclosure of Invention
The utility model provides a multi-drill unit head transmission structure to reach the purpose that improves the drilling spindle bearing capacity, reduce the work fault rate.
A multi-axis drill power head transmission structure is characterized in that a needle bearing and a first deep groove ball bearing are sleeved on a drill shaft at the mounting position of the upper part of the drill shaft and a box body, bearing seats are mounted on the outer sides of the needle bearing and the first deep groove ball bearing, and the bearing seats are fixed on the box body;
a gasket is arranged at the lower side of the first deep groove ball bearing; a gear is sleeved on the drill shaft at the lower side of the washer, and a transmission gear ring is further arranged between the gear and the drill shaft; a spring is sleeved on the drill shaft at the lower side of the gear; a spring retainer ring is fixed between the spring and the drill spindle at the lower side of the spring, and a clamp spring is arranged on the drill spindle to fix the retainer ring;
a second deep groove ball bearing is sleeved on the drilling shaft at the installation position of the drilling shaft and the lower part of the box body, a piston is sleeved outside the second deep groove ball bearing, and the piston is fixed on the drilling shaft through a screw; a wear-resistant balance belt and a sealing ring are sleeved on the piston, and the lower end of the piston is sealed by a sealing screw; the wear-resistant balance belt is in contact with the sealing ring and the cylinder body, and the cylinder body is fixed on the box body.
Furthermore, a dustproof ring is arranged at the upper end of the mounting position of the bearing seat and the drill shaft.
Furthermore, the dust ring is integrally formed and made of elastic rubber; the inner side surface is an arc surface protruding outwards; two mounting ribs are formed on the outer side surface, and mounting grooves are formed between the mounting ribs; the outer side surfaces of the two mounting ribs are inclined surfaces.
Furthermore, in the mounting rib, a chamfer is formed except the outer edge of the mounting groove.
Further, the gear structure is as follows: the tooth is in the middle part position, and upper and lower both ends extend respectively has the extension end, and the gear ring installation is in the lower side position, and the gear meshes with the gear on other bores the axle.
The utility model has the advantages that:
in the utility model, the needle roller bearing is directly matched with the drill spindle, so that the diameter of the drill spindle reaches 20mm, the subsequent heat treatment process can be carried out, the heat treatment deformation is smaller, the mechanical performance of the drill spindle is greatly improved, the bearing capacity of the drill spindle can be improved in multiples, and the working failure rate of the multi-spindle drill power head is reduced; when the drill bit moves axially, air pressure acts on the sealing ring, so that the piston drives the drill bit shaft to move axially, and the spring is compressed; after the air pressure is lost, the drill shaft returns under the action of the spring, so that the working stability of the drill shaft is enhanced. Moreover, the structure of the dust ring is different from that of the prior art, and the dust ring of the prior art is fixed on a bearing seat or a box body; therefore, the drill shaft and the dust ring have both rotary friction and axial reciprocating friction, and the dust ring is easy to wear, so that dust prevention is ineffective. When the dust ring provided by the utility model is installed, a clearance fit installation mode is adopted between the dust ring and the bearing seat or the box body, and the dust ring is an elastic rubber body and can be tightly wrapped on the outer surface of the drill spindle; when the drill spindle rotates, the dust ring rotates along with the drill spindle, the dust ring and the drill spindle are relatively static, only axial back-and-forth friction exists between the dust ring and the drill spindle, abrasion is greatly reduced, when the drill spindle rotates at a high speed, dust can be thrown away by strong centrifugal force and wind power, and due to the fact that the installation groove is formed in the outer ring of the dust ring, the dust is prevented from entering the bearing and the gear box cavity, and a good dustproof effect is achieved.
Drawings
Fig. 1 is a schematic structural diagram provided by the present invention;
fig. 2 is a schematic view of the structure of the present invention;
FIG. 3 is a schematic sectional view taken along line A-A of FIG. 2;
fig. 4 is an enlarged view of a portion B of fig. 3.
Fig. 5 is an enlarged view of the structure of part C in fig. 3.
In the figure: 1. a drill shaft; 2. a box body; 3. a needle bearing; 4. a first deep groove ball bearing; 5. a bearing seat; 6. a gasket; 7. a gear; 8. a transmission gear ring; 9. a spring; 10. a retainer ring; 11. a clamp spring; 12. a second deep groove ball bearing; 13. a piston; 14. a screw; 15. a wear-resistant balancing belt; 16. a seal ring; 17. a seal screw; 18. a dust ring; 18.1 and installing ribs.
Detailed Description
Referring to the attached drawings, the multi-axis drill power head transmission structure is characterized in that a needle bearing 3 and a first deep groove ball bearing 4 are sleeved on a drill shaft 1 at the upper installation position of the drill shaft 1 and a box body 2, bearing seats 5 are installed on the outer sides of the needle bearing 3 and the first deep groove ball bearing 4, and the bearing seats 5 are fixed on the box body 2; a dust ring 18 is arranged at the upper end of the mounting position of the bearing seat 5 and the drill spindle 1; the dustproof ring is integrally formed and made of elastic rubber; the inner side surface is an arc surface protruding outwards; two mounting ribs 18.1 are formed on the outer side surface, and mounting grooves are formed between the mounting ribs; the outer side surface of the two mounting ribs 18.1 is an inclined surface. In the mounting rib 18.1, a chamfer is formed except the outer edge of the mounting groove.
A gasket 6 is arranged at the lower side of the first deep groove ball bearing 4; a gear 7 is sleeved on the drill shaft 1 at the lower side of the gasket 6, and a transmission gear ring 8 is further arranged between the gear 7 and the drill shaft 1; the structure of the gear 7 is as follows: the teeth 7.1 are positioned at the middle position, the upper end and the lower end of each tooth are respectively extended with an extension end 7.2, the transmission gear ring 8 is arranged at the lower side position, and the gear 7 is meshed with gears on other drill shafts; a spring 9 is sleeved on the drill shaft 1 at the lower side of the gear 7; a spring retainer ring 10 is further fixed between the spring 9 and the drill spindle 1 at the lower side of the spring 9, and a clamp spring 11 is arranged on the drill spindle 1 to fix the retainer ring 10;
at the installation position of the lower parts of the drilling shaft 1 and the box body 2, a second deep groove ball bearing 12 is sleeved on the drilling shaft 1, a piston 13 is sleeved and installed at the outer side of the second deep groove ball bearing 12, the piston 13 is fixed on the drilling shaft 1 through a screw 14, a wear-resistant balance belt 15 and a sealing ring 16 are sleeved on the piston 13, and the lower end of the piston 13 is sealed by a sealing screw 17; the wear-resistant balance belt 15 and the sealing ring 16 are in contact with a cylinder body which is fixed on the box body 2.

Claims (5)

1. A multi-axis drill power head transmission structure is characterized in that a needle bearing and a first deep groove ball bearing are sleeved on a drill shaft at the mounting position of the upper part of the drill shaft and a box body, bearing seats are mounted on the outer sides of the needle bearing and the first deep groove ball bearing, and the bearing seats are fixed on the box body;
a gasket is arranged at the lower side of the first deep groove ball bearing; a gear is sleeved on the drill shaft at the lower side of the washer, and a transmission gear ring is further arranged between the gear and the drill shaft; a spring is sleeved on the drill shaft at the lower side of the gear; a spring retainer ring is fixed between the spring and the drill spindle at the lower side of the spring, and a clamp spring is arranged on the drill spindle to fix the retainer ring;
a second deep groove ball bearing is sleeved on the drilling shaft at the installation position of the drilling shaft and the lower part of the box body, a piston is sleeved outside the second deep groove ball bearing, and the piston is fixed on the drilling shaft through a screw; a wear-resistant balance belt and a sealing ring are sleeved on the piston, and the lower end of the piston is sealed by a sealing screw; the wear-resistant balance belt is in contact with the sealing ring and the cylinder body, and the cylinder body is fixed on the box body.
2. The multi-spindle drill power head transmission structure as claimed in claim 1, wherein a dust ring is installed at an upper end where the bearing housing is installed with the drill spindle.
3. The multi-axis drill power head transmission structure according to claim 2, wherein the dust ring is integrally formed and made of elastic rubber; the inner side surface is an arc surface protruding outwards; two mounting ribs are formed on the outer side surface, and mounting grooves are formed between the mounting ribs; the outer side surfaces of the two mounting ribs are inclined surfaces.
4. The multi-drill power head transmission structure as claimed in claim 3, wherein the mounting rib has a chamfer formed therein except for an outer edge of the mounting groove.
5. The multi-drill power head transmission structure of claim 1, wherein the gear structure is: the tooth is in the middle part position, and upper and lower both ends extend respectively has the extension end, and the gear ring installation is in the lower side position, and the gear meshes with the gear on other bores the axle.
CN201922073696.1U 2019-11-26 2019-11-26 Multi-shaft drill power head transmission structure Active CN211162075U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201922073696.1U CN211162075U (en) 2019-11-26 2019-11-26 Multi-shaft drill power head transmission structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201922073696.1U CN211162075U (en) 2019-11-26 2019-11-26 Multi-shaft drill power head transmission structure

Publications (1)

Publication Number Publication Date
CN211162075U true CN211162075U (en) 2020-08-04

Family

ID=71829000

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201922073696.1U Active CN211162075U (en) 2019-11-26 2019-11-26 Multi-shaft drill power head transmission structure

Country Status (1)

Country Link
CN (1) CN211162075U (en)

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