Feeding device for machining high-precision gearbox transmission shaft

By designing the vertical feeding box, circulating clamping belt, and pushing components in the feeding device, the problem of traditional devices being unable to automatically feed and rotate was solved, achieving efficient and precise machining of the transmission shaft.

CN224169524UActive Publication Date: 2026-04-28CHANGZHOU CHONGKE GEARBOX MFG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU CHONGKE GEARBOX MFG CO LTD
Filing Date
2025-04-14
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

Traditional high-precision gearbox drive shaft machining devices cannot achieve automatic material replenishment and circumferential rotation, affecting machining efficiency and accuracy.

Method used

A feeding device is designed, comprising a horizontal feeding seat, a vertical feeding box, a circulating clamping belt, a straightening component, and a pushing component. The vertical feeding box enables automatic feeding, the pushing component drives the transmission shaft to rotate circumferentially, and the straightening component prevents eccentricity.

Benefits of technology

It enables automatic feeding and circumferential rotation of the drive shaft workpiece, improving processing efficiency, avoiding workpiece scratches and eccentricity problems, and meeting the requirements of high-precision processing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of gearbox production, in particular to a feeding device for machining a transmission shaft of a high-precision gearbox, which is reasonable in structural design and mainly comprises a horizontal discharging seat, a vertical supplementing box, a circulating clamping belt, a righting component and a pushing component, and a discharging channel is arranged in the horizontal discharging seat; automatic feeding of the transmission shaft workpieces is achieved through two circulating clamping belts in the vertical feeding box, and scratches between cylindrical gears of the transmission shaft workpieces can be prevented while feeding is conducted; the pushing assembly is used for pushing the transmission shaft workpiece falling into the discharging channel outwards to a machining station, and meanwhile the pushing assembly can drive the clamped transmission shaft workpiece to rotate in the circumferential direction to assist in machining operation such as grinding. A transmission shaft body of the transmission shaft workpiece can be straightened through the straightening assembly, and the eccentric problem caused by the heavy cylindrical gear in the circumferential rotation process of the transmission shaft body is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of gearbox manufacturing technology, and in particular to a feeding device for machining high-precision gearbox drive shafts. Background Technology

[0002] Drive shafts play a crucial role in high-precision gearboxes. The following is a detailed explanation of the function of drive shafts in high-precision gearboxes: 1) Power Transmission: The drive shaft is a key component connecting the engine or motor to the high-precision gearbox. It transmits power from the power source to the gearbox through rotation, thereby driving the entire mechanical system. In high-precision gearboxes, the drive shaft needs to ensure smooth and efficient power transmission to meet the high precision and efficiency requirements of the mechanical system. 2) Support and Positioning: In high-precision gearboxes, the drive shaft not only transmits power but also supports and positions the gears. Gearboxes typically contain multiple gears that require precise meshing to achieve efficient energy conversion. The drive shaft, through its precise axis and position, provides stable support and positioning for the gears, ensuring that the gears maintain a precise meshing relationship during high-speed rotation, thereby improving the transmission accuracy and stability of the gearbox. 3) Adaptability to Complex Transmission Forms: High-precision gearboxes often require customized design based on different mechanical systems and application scenarios. The design of the drive shaft can flexibly adapt to various complex transmission forms, such as multi-stage reduction and speed-up transmissions. By adjusting parameters such as the length, diameter, material, and connection method of the drive shaft, the transmission performance of the gearbox can be optimized to meet the mechanical system's requirements for high precision, high efficiency, and high reliability.

[0003] Traditional feeding devices for high-precision gearbox drive shaft machining have shortcomings in use. First, they cannot automatically replenish and discharge the drive shaft workpiece, affecting processing efficiency. Second, they cannot drive the drive shaft workpiece to rotate circumferentially as needed to assist in grinding and other processing operations. Therefore, optimization and improvement are required. Utility Model Content

[0004] The purpose of this invention is to overcome the aforementioned problems in traditional technologies and provide a feeding device for machining high-precision gearbox drive shafts.

[0005] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0006] A feeding device for machining high-precision gearbox drive shafts includes a horizontal discharge seat, a vertical feed box, a circulating clamping belt, a straightening component, and a pushing component. The vertical feed box is installed on the upper side of the horizontal discharge seat, and circulating clamping belts for clamping drive shaft workpieces are installed on both sides of the vertical feed box. A discharge channel is opened in the horizontal discharge seat, and straightening components are symmetrically installed near the discharge port of the discharge channel. A pushing component is installed below the horizontal discharge seat.

[0007] The drive shaft workpiece includes a drive shaft body, with convex shafts of decreasing diameter at both ends of the drive shaft body, and a cylindrical gear of increasing diameter near one end of the drive shaft body.

[0008] The straightening assembly consists of a drive push rod and an arc-shaped straightening plate installed at its movable end;

[0009] The pushing component consists of a slide rail, a slider, a movable block, a tilting motor, a mounting block, and an automatic expansion sleeve. The slide rail is equipped with a slider that forms a linear guide pair with it. A movable block that extends into the discharge channel is installed on the upper side of the slider. A tilting motor is installed on one side of the movable block. A mounting block that is driven to rotate by the tilting motor is installed on the other side of the movable block. An automatic expansion sleeve that can be fitted and locked onto the outside of the cam shaft is installed on the outside of the mounting block.

[0010] Furthermore, in the aforementioned high-precision gearbox drive shaft machining feeding device, the cross-section of the inner cavity of the vertical feeding box is a rectangular structure, and the length of the rectangular structure matches the length of the drive shaft workpiece, while the width of the rectangular structure matches the outer diameter of the cylindrical gear in the drive shaft workpiece.

[0011] Furthermore, in the above-mentioned high-precision gearbox drive shaft processing feeding device, each of the circulating clamping belts has clamping tooth grooves that cooperate with the cylindrical gear in the drive shaft workpiece at equal intervals on the outer side of its belt body. The two opposing circulating clamping belts jointly clamp the drive shaft workpiece in parallel, and the two circulating clamping belts can synchronously and at intervals drive the belt body to perform cyclic displacement.

[0012] Furthermore, in the above-mentioned feeding device for high-precision gearbox drive shaft processing, the discharge channel is an open circular groove, the upper side wall of the discharge channel is provided with a feeding port that facilitates communication with the inner cavity of the vertical feeding box, and the left and right side walls of the discharge channel are provided with a receiving groove for accommodating the arc-shaped straightening plate. The arc shape of the arc-shaped straightening plate is matched with the outer diameter of the drive shaft body in the drive shaft workpiece.

[0013] Furthermore, in the aforementioned feeding device for machining high-precision gearbox drive shafts, the shape of the movable block in the pushing assembly matches the vertical cross-sectional shape of the discharge channel.

[0014] Furthermore, in the aforementioned feeding device for machining high-precision gearbox drive shafts, the automatic expansion sleeve in the pushing component is connected to the mounting block in a detachable manner.

[0015] The beneficial effects of this utility model are:

[0016] This utility model has a reasonable structural design, mainly consisting of a horizontal feeding seat, a vertical feeding box, a circulating clamping belt, a straightening component, and a pushing component. The horizontal feeding seat has a feeding channel. The two circulating clamping belts in the vertical feeding box realize automatic feeding of the drive shaft workpiece, and at the same time, they can prevent scratches between the cylindrical gears of the drive shaft workpiece. The pushing component pushes the drive shaft workpiece that falls into the feeding channel outward to the processing station. The pushing component can also drive the clamped drive shaft workpiece to rotate circumferentially, assisting in processing operations such as grinding. The straightening component can straighten the drive shaft body of the drive shaft workpiece to avoid eccentricity problems caused by the weight of the cylindrical gears during circumferential rotation.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the transmission shaft workpiece in this utility model;

[0021] Figure 3 This is a schematic diagram of the vertical replenishment box in this utility model;

[0022] Figure 4 This is a schematic diagram of the structure of the horizontal material discharge seat in this utility model;

[0023] Figure 5 This is a half-sectional structural diagram of the horizontal material discharge seat in this utility model;

[0024] Figure 6 This is a schematic diagram of the push component in this utility model;

[0025] In the attached diagram, the components represented by each number are as follows:

[0026] 1-Horizontal discharge seat, 2-Vertical replenishment box, 3-Circulating clamping belt, 4-Discharge channel, 5-Drive shaft workpiece, 501-Drive push rod, 502-Arc-shaped straightening plate, 6-Pushing assembly, 601-Slide rail, 602-Slider, 603-Moving block, 604-Tilting motor, 605-Mounting block, 606-Automatic expansion sleeve, 7-Drive shaft workpiece, 701-Drive shaft body, 702-Cam shaft, 703-Cylindrical gear. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0028] like Figures 1-6 As shown, this embodiment provides a feeding device for machining high-precision gearbox drive shafts, including a horizontal feed seat 1, a vertical feed box 2, a circulating clamping belt 3, a straightening component 5, and a pushing component 6. The vertical feed box 2 is mounted on the upper side of the horizontal feed seat 1, and circulating clamping belts 3 for clamping the drive shaft workpiece 5 are mounted on both sides of the vertical feed box 2. A discharge channel 4 is provided in the horizontal feed seat 1, and the straightening components 5 are symmetrically installed near the discharge port of the discharge channel 4. The pushing component 6 is installed below the horizontal feed seat 1.

[0029] In this embodiment, the transmission shaft workpiece 7 includes a transmission shaft body 701. The two ends of the transmission shaft body 701 are provided with convex shafts 702 with smaller diameters. Near one end of the transmission shaft body 701, a cylindrical gear 703 with larger diameters is provided. The cylindrical gear 703 serves as the clamped part corresponding to the circulating clamping belt 3.

[0030] In this embodiment, the straightening component 5 consists of a drive push rod 501 and an arc-shaped straightening plate 502 installed at its movable end.

[0031] In this embodiment, the pushing component 6 consists of a slide rail 601, a slider 602, a movable block 603, a flip motor 604, a mounting block 605, and an automatic expansion sleeve 606. The slider 602, which forms a linear guide pair with the slide rail 601, is mounted on the slide rail 601. The movable block 603, which extends into the discharge channel 4, is mounted on the upper side of the slider 602. The flip motor 604 is mounted on one side of the movable block 603, and the mounting block 605, which is driven to rotate by the flip motor 604, is mounted on the other side of the movable block 603. An automatic expansion sleeve 606, which can be sleeved on the outside of the convex shaft 702 and locked, is mounted on the outside of the mounting block 605.

[0032] In this embodiment, the cross-section of the inner cavity of the vertical feeding box 2 is a rectangular structure, and the length of the rectangular structure matches the length of the transmission shaft workpiece 7, while the width of the rectangular structure matches the outer diameter of the cylindrical gear 703 in the transmission shaft workpiece 7.

[0033] In this embodiment, each of the circulating clamping belts 3 has clamping tooth grooves equidistantly opened on the outer side of its belt body, which cooperate with the cylindrical gear 703 in the transmission shaft workpiece 7. The two opposing circulating clamping belts 3 are used to clamp the transmission shaft workpiece 7 in parallel, and the two circulating clamping belts 3 can synchronously and intermittently drive the belt body to perform cyclic displacement.

[0034] In this embodiment, the discharge channel 4 is an open circular groove. The upper side wall of the discharge channel 4 is provided with a feeding port that facilitates communication with the inner cavity of the vertical feeding box 2. The left and right side walls of the discharge channel 4 are provided with a storage groove that facilitates the storage of the arc-shaped straightening plate 502. The arc shape of the arc-shaped straightening plate 502 is matched with the outer diameter of the transmission shaft body 701 in the transmission shaft workpiece 7.

[0035] In this embodiment, the shape of the active block 603 in the pushing component 6 matches the vertical cross-sectional shape of the discharge channel 4.

[0036] In this embodiment, the automatic expansion sleeve in the push component 6 is connected to the mounting block 605 in a detachable manner.

[0037] A specific application of this embodiment is as follows: The structure is reasonably designed and mainly consists of a horizontal discharge seat 1, a vertical feeding box 2, a circulating clamping belt 3, a straightening component 5, and a pushing component 6. The horizontal discharge seat 1 has a discharge channel 4. The two circulating clamping belts 3 in the vertical feeding box 2 realize the automatic feeding of the transmission shaft workpiece 7. While feeding, it can also prevent scratches between the cylindrical gears 703 of the transmission shaft workpiece 7. The pushing component 6 pushes the transmission shaft workpiece 7 that falls into the discharge channel 4 outward to the processing station. The pushing component 6 can also drive the clamped transmission shaft workpiece 7 to rotate circumferentially to assist in processing operations such as grinding. The straightening component 5 can straighten the transmission shaft body 701 of the transmission shaft workpiece 7 to avoid the eccentricity problem caused by the weight of the cylindrical gears 703 during circumferential rotation.

[0038] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A feeding device for machining high-precision gearbox drive shafts, characterized in that, It includes a horizontal discharge seat, a vertical feeding box, a circulating clamping belt, a straightening component, and a pushing component. The vertical feeding box is installed on the upper side of the horizontal discharge seat, and circulating clamping belts for clamping the drive shaft workpiece are installed on both sides of the vertical feeding box. A discharge channel is opened in the horizontal discharge seat, and straightening components are symmetrically installed near the discharge port of the discharge channel. A pushing component is installed below the horizontal discharge seat. The drive shaft workpiece includes a drive shaft body, with convex shafts of decreasing diameter at both ends of the drive shaft body, and a cylindrical gear of increasing diameter near one end of the drive shaft body. The straightening assembly consists of a drive push rod and an arc-shaped straightening plate installed at its movable end; The pushing component consists of a slide rail, a slider, a movable block, a tilting motor, a mounting block, and an automatic expansion sleeve. The slide rail is equipped with a slider that forms a linear guide pair with it. A movable block that extends into the discharge channel is installed on the upper side of the slider. A tilting motor is installed on one side of the movable block. A mounting block that is driven to rotate by the tilting motor is installed on the other side of the movable block. An automatic expansion sleeve that can be fitted and locked onto the outside of the cam shaft is installed on the outside of the mounting block.

2. The feeding device for machining high-precision gearbox drive shafts according to claim 1, characterized in that, The cross-section of the inner cavity of the vertical feeding box is rectangular, and the length of the rectangular structure matches the length of the drive shaft workpiece, while the width of the rectangular structure matches the outer diameter of the cylindrical gear in the drive shaft workpiece.

3. The feeding device for high-precision gearbox drive shaft machining according to claim 2, characterized in that, Each of the circulating clamping belts has clamping tooth grooves equidistantly opened on the outer side of its belt body, which cooperate with the cylindrical gear in the workpiece of the drive shaft. The two opposing circulating clamping belts jointly clamp the workpiece of the drive shaft, and the two circulating clamping belts can synchronously and at intervals drive the belt body to perform cyclic displacement.

4. The feeding device for high-precision gearbox drive shaft machining according to claim 3, characterized in that, The discharge channel is an open circular groove. The upper side wall of the discharge channel has a feeding port that facilitates communication with the inner cavity of the vertical feeding box. The left and right side walls of the discharge channel have storage slots that facilitate the storage of the arc-shaped straightening plate. The arc shape of the arc-shaped straightening plate matches the outer diameter of the transmission shaft body in the transmission shaft workpiece.

5. The feeding device for machining high-precision gearbox drive shafts according to claim 4, characterized in that, The shape of the movable block in the pushing component matches the vertical cross-sectional shape of the discharge channel.

6. The feeding device for machining high-precision gearbox drive shafts according to claim 1, characterized in that, The automatic expansion sleeve in the push component is detachably connected to the mounting block.