90-degree angle head for lathe drilling and tapping

Abstract

The utility model provides a 90-degree angle head for lathe drilling and tapping, which comprises an input box and an output box, the input box is provided with an input end, the output box is provided with an output end, and the input end and the output end form a 90-degree angle; the input shaft is arranged in the input end, and the input shaft is provided with an input bevel gear far away from the input end; and the output assembly comprises an output bevel gear meshed with the input bevel gear, an output shaft synchronously rotating with the output bevel gear, a rotating rod embedded in the middle of the output shaft, a positioning cone embedded in the rotating rod and the output shaft, and a drill bit embedded in the positioning cone. According to the angle head, all parts are easy to disassemble and assemble, through the arrangement of the input shaft, the output shaft and the bevel gear, the torque of the drill bit can be greatly guaranteed, the overall structural rigidity is guaranteed, and the service life of the angle head is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of angle head technology, and in particular to a 90-degree angle head for drilling and tapping on a lathe. Background Technology

[0002] An angle head is a lathe accessory that allows the tool's rotation center line to be angled to the spindle's rotation center line for machining workpieces. Originating in Europe, it is now widely used in various fields of machining, such as aerospace, automotive, and mold making. Using an angle head increases the machining range and adaptability of the lathe without changing its structure, enabling machining processes that are difficult to complete using traditional methods. It also reduces the need for repeated workpiece clamping, improving machining accuracy and efficiency. Angle heads are mainly used in machining centers, can be mounted in the tool, and can be freely switched between the tool and the lathe spindle.

[0003] In existing angle heads used for drilling and tapping on lathes, the overall rigidity is low while the torque is large, which can easily damage internal parts. Furthermore, the complex disassembly and assembly make subsequent maintenance and repair inconvenient, thus affecting the service life of the angle head. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a 90-degree angle head for lathe drilling and tapping, in order to solve the problems of easy damage, inconvenience in disassembly and assembly, and short service life of the angle head in the prior art.

[0005] To achieve the above and other related objectives, this utility model provides the following technical solution:

[0006] A 90-degree angle head for drilling and tapping on a lathe includes: an input box and an output box, the input box having an input end and the output box having an output end, the input end and the output end being at a 90-degree angle; an input shaft disposed in the input end, the input shaft having an input bevel gear disposed away from the input end; and an output assembly including an output bevel gear meshing with the input bevel gear, an output shaft rotating synchronously with the output bevel gear, a rotating rod embedded in the middle of the output shaft, a positioning cone embedded in the rotating rod and the output shaft, and a drill bit embedded in the positioning cone.

[0007] To achieve the above technical solution, in this application, the input box and the output box are fixedly connected by bolts, forming a protective structure inside. The input shaft can rotate in the input end and is used to connect with a high-speed rotating lathe spindle or other drive structure. The input bevel gear and the output bevel gear mesh and change the transmission direction from the input shaft to the output shaft. The input bevel gear drives the output bevel gear to rotate, thereby driving the output shaft, rotating rod, positioning cone, and drill bit to rotate synchronously, thus providing the torque required for lathe drilling and tapping. In this application, the various components are easy to disassemble and assemble, and the arrangement of the input shaft, output shaft, and bevel gears can greatly ensure the torque of the drill bit, ensure the overall structural rigidity, and improve the service life of the angle head.

[0008] In one embodiment of the present invention, a first bearing is sleeved on the outside of the input shaft and the input bevel gear, abutting against the inner wall of the input box; a second bearing and a third bearing located in the inner wall of the output box are respectively sleeved on both ends of the output shaft.

[0009] To achieve the above technical solution, during operation, the output box is stationary, while the input shaft, input bevel gear, and output shaft are constantly rotating. The first bearing improves the rotational accuracy of the input shaft and input bevel gear and reduces the coefficient of friction during rotation. The second and third bearings support the output shaft and reduce its rotational friction, resulting in smoother rotation and ensuring its rotational accuracy, thereby improving the machining accuracy of the drill bit.

[0010] In one embodiment of the present invention, a support ring sleeved on the outside of the output shaft is provided between the third bearing and the output bevel gear.

[0011] To achieve the above technical solution, the support ring is used to maintain the circumferential distance between the output bevel gear and the third bearing, which can withstand the vibration and impact generated by the drill bit and improve the service life of the overall angle head.

[0012] In one embodiment of the present invention, the two ends of the output shaft are respectively provided with a front end cover fixed to the positioning cone and the output shaft, and a rear end cover fixed to the output box.

[0013] The above technical solution, through the setting of the front and rear covers, can effectively protect the internal parts of the angle head from damage, and can also seal the angle head to prevent external dust and moisture from entering, thereby reducing wear and corrosion inside the angle head.

[0014] In one embodiment of the present invention, an outer positioning ring is provided between the rear end cover and the outer ring of the second bearing, and an inner positioning ring is provided between the rear end cover and the inner ring of the second bearing, wherein the outer diameter of the inner positioning ring is smaller than the inner diameter of the rear end cover.

[0015] By implementing the above technical solution, the axial displacement of the second bearing can be effectively limited by the inner positioning ring and the outer positioning ring, preventing the bearing from loosening or shifting. The inner positioning ring will rotate with the inner ring of the second bearing, while the outer positioning ring is stationary.

[0016] In one embodiment of the present invention, the input shaft has a tool holder cone, and a pull stud is connected to the end of the tool holder cone.

[0017] To achieve the above technical solution, the pull stud is the connection structure between the lathe spindle and the tool holder taper, which fits perfectly with the taper hole of the lathe spindle, avoiding vibration and instability of the angle head under high-speed operation.

[0018] As described above, the 90-degree angle head for lathe drilling and tapping of this utility model has the following beneficial effects: In this application, the input box and the output box are fixedly connected by bolts, forming a protective structure inside. The input shaft can rotate in the input end and is used to connect with the high-speed rotating lathe spindle and other drive structures. The input bevel gear and the output bevel gear mesh and change the transmission direction from the input shaft to the output shaft. The input bevel gear drives the output bevel gear to rotate, thereby driving the output shaft, rotating rod, positioning cone and drill bit to rotate synchronously, thereby providing the torque required for lathe drilling and tapping. In this application, the various components are easy to disassemble and assemble, and the setting of the input shaft, output shaft and bevel gear can greatly ensure the torque of the drill bit, ensure the overall structural rigidity, and improve the service life of the angle head. Attached Figure Description

[0019] Figure 1 The diagram shown is a cross-sectional view of this utility model.

[0020] Figure 2 The diagram shown is a structural schematic of this utility model.

[0021] Component designation explanation

[0022] 1. Input box; 2. Output box; 3. Input shaft; 4. Input bevel gear; 5. Output bevel gear; 6. Output shaft; 7. Rotary rod; 8. Positioning cone; 9. Drill bit; 10. First bearing; 11. Second bearing; 12. Third bearing; 13. Support ring; 14. Front end cover; 15. Rear end cover; 16. Outer positioning ring; 17. Inner positioning ring; 18. Tool holder cone; 19. Pull stud. Detailed Implementation

[0023] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. It should be noted that, unless otherwise specified, the following embodiments and features can be combined with each other.

[0024] Please see Figures 1 to 2 This utility model provides a 90-degree angle head for drilling and tapping on a lathe, comprising: an input box 1 and an output box 2, wherein the input box 1 has an input end and the output box 2 has an output end, the input end and the output end are at a 90-degree angle; an input shaft 3 disposed in the input end, wherein an input bevel gear 4 is provided on the input shaft 3 away from the input end; and an output assembly comprising an output bevel gear 5 meshing with the input bevel gear 4, an output shaft 6 rotating synchronously with the output bevel gear 5, a rotating rod 7 embedded in the middle of the output shaft 6, a positioning cone 8 embedded in the rotating rod 7 and the output shaft 6, and a drill bit 9 embedded in the positioning cone 8.

[0025] In this application, the input box 1 and the output box 2 are fixedly connected by bolts, forming a protective structure inside. The input shaft 3 can rotate in the input end and is used to connect with a high-speed rotating lathe spindle or other drive structure. The input bevel gear 4 and the output bevel gear 5 mesh and change the transmission direction from the input shaft 3 to the output shaft 6. The input bevel gear 4 drives the output bevel gear 5 to rotate, thereby driving the output shaft 6, the rotating rod 7, the positioning cone 8, and the drill bit 9 to rotate synchronously, thus providing the torque required for lathe drilling and tapping. In this application, the various components are easy to disassemble and assemble, and the arrangement of the input shaft 3, the output shaft 6, and the bevel gears can greatly ensure the torque of the drill bit 9, ensure the overall structural rigidity, and improve the service life of the angle head.

[0026] The input shaft 3 and the input bevel gear 4 are fitted with a first bearing 10 that abuts against the inner wall of the input housing 1; the two ends of the output shaft 6 are respectively fitted with a second bearing 11 and a third bearing 12 located in the inner wall of the output housing 2. During operation, the output housing 2 is stationary, while the input shaft 3, the input bevel gear 4, and the output shaft 6 are constantly rotating. The first bearing 10 improves the rotational accuracy of the input shaft 3 and the input bevel gear 4 and reduces the coefficient of friction during rotation. The second bearing 11 and the third bearing 12 support the output shaft 6 and reduce its rotational friction, making the rotation of the output shaft 6 smoother and ensuring its rotational accuracy, thereby improving the machining accuracy of the drill bit 9.

[0027] A support ring 13 is provided between the third bearing 12 and the output bevel gear 5, and is sleeved on the outside of the output shaft 6. The support ring 13 is used to maintain the circumferential distance between the output bevel gear 5 and the third bearing 12, and can withstand the vibration and impact generated by the drill bit 9, thereby improving the service life of the overall angle head.

[0028] The output shaft 6 has a front cover 14 fixed to the positioning cone 8 and the output shaft 6, and a rear cover 15 fixed to the output box 2 at both ends. The front cover 14 and the rear cover 15 can effectively protect the internal parts of the angle head from damage and can also seal the angle head to prevent external dust and moisture from entering, thereby reducing wear and corrosion inside the angle head.

[0029] An outer positioning ring 16 is provided between the rear end cover 15 and the outer ring of the second bearing 11, and an inner positioning ring 17 is provided between the rear end cover 15 and the inner ring of the second bearing 11, with the outer diameter of the inner positioning ring 17 being smaller than the inner diameter of the rear end cover 15. The inner positioning ring 17 and the outer positioning ring 16 effectively limit the axial displacement of the second bearing 11, preventing the bearing from loosening or shifting. The inner positioning ring 17 rotates with the inner ring of the second bearing 11, while the outer positioning ring 16 remains stationary.

[0030] The input shaft 3 has a tool holder taper 18, and a pull stud 19 is connected to the end of the tool holder taper 18. The pull stud 19 is the connection structure between the lathe spindle and the tool holder taper 18, and it fits perfectly with the taper hole of the lathe spindle to avoid vibration and instability of the angle head under high-speed operation.

[0031] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit this utility model. All equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A 90-degree angle head for drilling and tapping on a lathe, characterized in that... ,include: An input box (1) and an output box (2) are provided, wherein the input box (1) has an input terminal and the output box (2) has an output terminal, and the input terminal and the output terminal are at a 90-degree angle. An input shaft (3) is disposed in the input end, and an input bevel gear (4) is provided on the input shaft (3) away from the input end; The output assembly includes an output bevel gear (5) meshing with the input bevel gear (4), an output shaft (6) rotating synchronously with the output bevel gear (5), a rotating rod (7) embedded in the middle of the output shaft (6), a positioning cone (8) embedded in the rotating rod (7) and the output shaft (6), and a drill bit (9) embedded in the positioning cone (8).

2. The 90-degree angle head for lathe drilling and tapping according to claim 1, characterized in that: The input shaft (3) and the input bevel gear (4) are fitted with a first bearing (10) that abuts against the inner wall of the input box (1); The two ends of the output shaft (6) are respectively fitted with a second bearing (11) and a third bearing (12) located in the inner wall of the output box (2).

3. The 90-degree angle head for lathe drilling and tapping according to claim 2, characterized in that: A support ring (13) is provided between the third bearing (12) and the output bevel gear (5) and sleeved on the outside of the output shaft (6).

4. The 90-degree angle head for lathe drilling and tapping according to claim 2, characterized in that: The output shaft (6) has a front end cover (14) fixed to the positioning cone (8) and the output shaft (6) and a rear end cover (15) fixed to the output box (2) at both ends.

5. The 90-degree angle head for lathe drilling and tapping according to claim 4, characterized in that: An outer positioning ring (16) is provided between the rear end cover (15) and the outer ring of the second bearing (11), and an inner positioning ring (17) is provided between the rear end cover (15) and the inner ring of the second bearing (11), and the outer diameter of the inner positioning ring (17) is smaller than the inner diameter of the rear end cover (15).

6. The 90-degree angle head for lathe drilling and tapping according to claim 4, characterized in that: The input shaft (3) has a tool holder taper (18), and a pull stud (19) is connected to the end of the tool holder taper (18).

Images