Gear shaft machining device

By synchronously driving the hob to rotate and automatically feeding the material onto the turntable feeder via the transmission shaft, the problem of existing gear hobbing machines being unable to continuously process shaft gears has been solved, achieving efficient and precise processing of gear shafts.

CN224157839UActive Publication Date: 2026-04-24LUOYANG SHENCHUAN GEAR MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
LUOYANG SHENCHUAN GEAR MFG CO LTD
Filing Date
2025-04-09
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing gear hobbing machines lack a structure for continuous machining of shaft gears, which requires frequent workpiece changes or equipment adjustments to process gear shafts, affecting the processing cycle and accuracy.

Method used

Two roller cutters are synchronously driven by a drive shaft to rotate. The gear shaft is fed by a turntable feeder to achieve automatic feeding. The material is clamped by an electric chuck. Combined with the motor-driven gear rotation, the two gear shafts are processed synchronously.

Benefits of technology

It improves the machining efficiency of gear shafts, reduces the cumulative error caused by multiple clamping operations, and improves machining accuracy and efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gear shaft machining device which comprises a rotary table feeder, a plurality of gear shaft sleeves, a plurality of gear shafts and a plurality of gear shafts. The two groups of electric chucks are configured to be coaxial with the two adjacent gear shaft sleeves respectively; the second motor is fixedly connected with the electric chuck and used for driving the electric chuck to rotate, and the second motor is connected with a height adjusting assembly capable of driving the second motor to ascend and descend; two hobbing cutters capable of synchronously machining two adjacent gear shafts are fixedly arranged on the transmission shaft in the axial direction of the transmission shaft; an output shaft of the first motor is fixedly connected with the transmission shaft. The transmission shaft is adopted to synchronously drive the two hobs to rotate, two gear shafts can be synchronously machined, the telescopic cylinder can drive the transmission shaft to horizontally move to change the machining depth, meanwhile, the gear shafts are conveyed through the rotary disc feeder, automatic feeding is achieved, and an electric chuck clamps materials; the motor drives the electric chuck to rotate so as to drive the shaft gear to rotate, and machining efficiency is improved.
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Description

Technical Field

[0001] This application relates to the field of gear shaft machining technology, and in particular to a gear shaft machining apparatus. Background Technology

[0002] The gear hobbing machine is one of the most widely used gear processing machine tools. It can cut spur and helical cylindrical gears, as well as worm gears and sprockets. It is a gear processing machine tool that uses hobs to process spur, helical, and herringbone cylindrical gears and worm gears using the generating method.

[0003] Existing gear hobbing machines lack a structure for continuous machining of shaft gears. Gear shaft machining requires machining with a rotating hob. Traditional devices typically use a single-station sequential machining process, necessitating frequent workpiece changes or equipment adjustments, resulting in long machining cycles. Multiple clamping operations affect accuracy: Gear shaft machining often requires multiple clamping and positioning operations (such as roughing, grinding, etc.), which easily introduces cumulative errors. Summary of the Invention

[0004] The purpose of this application is to provide a gear shaft processing device to solve the above problems. It uses a transmission shaft to synchronously drive two hobs to rotate, which can process two gear shafts simultaneously. The gear shafts are also conveyed by a turntable feeder to achieve automatic feeding and improve processing efficiency.

[0005] This application achieves the above objectives through the following technical solutions:

[0006] A gear shaft machining apparatus, comprising:

[0007] The rotary feeder has multiple detachable gear bushings arranged circumferentially.

[0008] The electric chuck consists of two sets, each configured to be coaxial with two adjacent gear shaft sleeves;

[0009] The second motor is fixedly connected to the electric chuck and is used to drive the electric chuck to rotate. The second motor is connected to a height adjustment component that can drive the chuck to rise and fall.

[0010] The drive shaft has two hobs fixedly mounted along its axial direction, capable of simultaneously machining two adjacent gear shafts;

[0011] The first motor has its output shaft fixedly connected to the transmission shaft.

[0012] Furthermore, the height adjustment assembly includes: a support plate and two motor mounts, each fixedly connected to two second motors and fixed on the support plate; and a first telescopic cylinder, fixedly mounted on the frame, with its output end fixedly connected to the support plate.

[0013] Furthermore, it also includes: a cylinder frame, which is fixedly connected to the frame; a second telescopic cylinder, whose output shaft is fixedly connected to a connecting seat, and the connecting seat is rotatably connected to the transmission shaft; and a slider, on which a slide groove for the slider to move horizontally is provided on the side wall of the frame, and a first motor is fixedly mounted on the slider.

[0014] Furthermore, the frame is rectangular, and guide columns are fixedly installed on the inner sides of both side walls of the frame, with the two ends of the load-bearing plate slidingly engaged with the guide columns.

[0015] Furthermore, a connecting ring is fixedly connected to the top of the gear bushing, and mounting holes for fasteners to pass through are opened along the circumference of the connecting ring. Fasteners for fastening the connecting ring are provided on the turntable feeder.

[0016] Furthermore, the drive shaft is arranged horizontally along its axis, and the movement direction of the second telescopic cylinder is horizontal and perpendicular to the axis of the drive shaft.

[0017] Furthermore, the guide column and the first telescopic cylinder are arranged vertically.

[0018] Compared to existing technologies, this application uses a drive shaft to synchronously drive two hobs to rotate, enabling simultaneous processing of two gear shafts. Furthermore, the drive shaft can be moved by a telescopic cylinder to change the processing depth, while the gear shaft is conveyed by a turntable feeder to achieve automatic feeding. An electric chuck picks up the material, and the electric chuck is driven to rotate by a motor, which in turn drives the shaft gears to rotate, thus improving processing efficiency. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the present application and form part of the specification. They are used together with the following detailed description to explain the present application, but do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a schematic diagram of the structure of this application;

[0021] Figure 2 This is a schematic diagram of the drive shaft structure of this application;

[0022] Figure 3 This is a schematic diagram of the gear shaft sleeve structure of this application.

[0023] The annotations in the attached figures are explained as follows:

[0024] 1. Rotary feeder; 2. Gear bushing; 3. Connecting ring; 4. Mounting hole; 5. Frame; 6. Drive shaft; 7. Hob; 8. First motor; 9. Cylinder frame; 10. Second telescopic cylinder; 11. Connecting seat; 12. Bearing plate; 13. Guide column; 14. First telescopic cylinder; 15. Motor base; 16. Second motor; 17. Electric chuck; 18. Slide groove; 19. Slider. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0026] In the description of this application, it should be understood that the terms "upper," "lower," "front," "back," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the appendix. Figure 1 This description is provided for the convenience of describing this application and for the purpose of simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0027] like Figure 1-3 As shown, a gear shaft machining apparatus includes:

[0028] A rotary feeder 1 has multiple detachable gear bushings 2 arranged around its circumference;

[0029] The electric chuck 17 consists of two sets, which are configured to be coaxial with the two adjacent gear shaft sleeves 2 respectively;

[0030] The second motor 16 is fixedly connected to the electric chuck 17 for driving the electric chuck 17 to rotate. The second motor 16 is connected to a height adjustment component that can drive it to rise and fall.

[0031] The drive shaft 6 has two hobs 7 fixedly mounted along its axial direction, which can simultaneously process two adjacent gear shafts;

[0032] The first motor 8 has its output shaft fixedly connected to the transmission shaft 6.

[0033] Specifically, the gear shaft is inserted into the gear shaft sleeve 2 and can be conveyed to the electric chuck 17 by the turntable feeder 1. The detachable gear shaft sleeve 2 can be replaced to accommodate different models of gear shafts. The electric chuck 17 can be driven to rotate by the second motor 16. The electric chuck 17 can clamp the gear shaft and drive the gear shaft to lift and rotate, which facilitates the rotation of the hob 7 to process the gear shaft.

[0034] Furthermore, the height adjustment assembly includes: a support plate 12 and a motor base 15, wherein there are two motor bases 15, which are respectively fixedly connected to two second motors 16 and fixed on the support plate 12; and a first telescopic cylinder 14, which is fixedly installed on the frame 5 and whose output end is fixedly connected to the support plate 12.

[0035] Specifically, the support plate 12 supports the motor base 15 and the second motor 16. The second motor 16 is connected through the motor base 15, so that the motor base 15 can further support the rotation of the electric chuck 17 and improve the rotational stability.

[0036] Furthermore, it also includes: a cylinder frame 9, which is fixedly connected to the frame 5; a second telescopic cylinder 10, whose output shaft is fixedly connected to a connecting seat 11, and the connecting seat 11 is rotatably connected to the transmission shaft 6; and a slider 19, on which a slide groove 18 for the slider 19 to move is provided on the side wall of the frame 5, and a first motor 8 is fixedly installed on the slider 19.

[0037] Specifically, the second telescopic cylinder 10 drives the connecting seat 11 to move horizontally, thereby enabling the transmission shaft 6 to move horizontally and rotate normally. The slider 19 carries the transmission shaft 6 and the first motor 8, causing the first motor 8 to drive the transmission shaft 6 to rotate, which in turn drives the hob 7 to rotate and process the gear shaft.

[0038] Furthermore, the frame 5 is rectangular, and guide columns 13 are fixedly installed on the inner side of both side walls of the frame 5. The two ends of the bearing plate 12 are slidably engaged with the guide columns 13.

[0039] Specifically, after the load-bearing plate 12 is raised and lowered, its two ends slide in cooperation with the guide column 13 to improve the stability of the lifting of the load-bearing plate 12.

[0040] Furthermore, a connecting ring 3 is fixedly connected to the top of the gear bushing 2, and mounting holes 4 are provided around the connecting ring 3 for fasteners to pass through. Fasteners for fastening the connecting ring 3 are provided on the turntable feeder 1.

[0041] Specifically, in some embodiments, the fastener is a bolt, which is fixed on the turntable feeder 1. The connecting ring 3 is installed on the bolt and tightened by a nut, which facilitates the disassembly of the gear shaft sleeve 2 and the connecting ring 3 to replace the gear shaft sleeve 2 to adapt to different models of gear shafts.

[0042] Furthermore, the drive shaft 6 is arranged horizontally along the axis, and the movement direction of the second telescopic cylinder 10 is horizontal and perpendicular to the axis of the drive shaft 6.

[0043] Specifically, the teeth of the hob 7 can be machined along the axial direction of the gear shaft, and the machining depth can be adjusted by driving the translation of the second telescopic cylinder 10.

[0044] Furthermore, the guide column 13 and the first telescopic cylinder 14 are arranged vertically.

[0045] In the above structure, the gear shaft to be processed is inserted into the gear shaft sleeve 2, and the turntable feeder 1 conveys it to the electric chuck 17. The first telescopic cylinder 14 is activated to extend, so that the electric chuck 17 can clamp the gear shaft, thereby driving the gear shaft to lift and rotate. After the first motor 8 is powered on, it drives the transmission shaft 6 to rotate, which in turn drives the hob 7 to rotate. The hob 7 can process the gear shaft. The second telescopic cylinder 10 drives the connecting seat 11 to translate, which in turn drives the transmission shaft 6 to translate, which can change the processing depth. The two hobs 7 work at the same time, so two gear shafts can be processed at the same time, resulting in higher processing efficiency.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of this application as claimed. The scope of protection of this application is defined by the appended claims and their equivalents.

Claims

1. A gear shaft machining device, characterized in that, include: A rotary feeder (1) has multiple detachable gear bushings (2) arranged around its circumference. Electric chucks (17), which are in two sets, are configured to be coaxial with the two adjacent gear shaft sleeves (2); The second motor (16) is fixedly connected to the electric chuck (17) for driving the electric chuck (17) to rotate. The second motor (16) is connected to a height adjustment component that can drive it to rise and fall. The drive shaft (6) has two hobs (7) fixedly installed along its axial direction, which can simultaneously process two adjacent gear shafts. The first motor (8) has its output shaft fixedly connected to the transmission shaft (6).

2. The gear shaft machining device according to claim 1, characterized in that: The height adjustment assembly includes: a support plate (12) and a motor base (15). There are two motor bases (15), which are fixedly connected to two second motors (16) respectively and fixed on the support plate (12); a first telescopic cylinder (14), which is fixedly installed on the frame (5) and whose output end is fixedly connected to the support plate (12).

3. The gear shaft machining device according to claim 1, characterized in that: Also includes: The cylinder frame (9) is fixedly connected to the frame (5); the second telescopic cylinder (10) has a connecting seat (11) fixedly connected to its output shaft, and the connecting seat (11) is rotatably connected to the transmission shaft (6); the slider (19) has a sliding groove (18) on the side wall of the frame (5) for the slider (19) to move, and the first motor (8) is fixedly installed on the slider (19).

4. The gear shaft machining device according to claim 2, characterized in that: The frame (5) is rectangular, and guide columns (13) are fixedly installed on the inner side of both sides of the frame (5). The two ends of the bearing plate (12) are slidably engaged with the guide columns (13).

5. The gear shaft machining device according to claim 1, characterized in that: A connecting ring (3) is fixedly connected to the top of the gear bushing (2). An installation hole (4) for fasteners to pass through is provided along the circumference of the connecting ring (3). Fasteners for fastening the connecting ring (3) are provided on the turntable feeder (1).

6. The gear shaft machining device according to claim 3, characterized in that: The drive shaft (6) is arranged horizontally in the axial direction, and the movement direction of the second telescopic cylinder (10) is horizontal and perpendicular to the axial direction of the drive shaft (6).

7. The gear shaft machining device according to claim 4, characterized in that: The guide column (13) and the first telescopic cylinder (14) are arranged vertically.