A high-precision positioning milling device for planetary gears

Abstract

This utility model relates to the technical field of planetary gear positioning equipment, specifically a high-precision positioning milling device for planetary gears. It includes a worktable and a positioning mechanism disposed inside the worktable. The positioning mechanism is used for the placement and positioning of the planetary gears. The positioning mechanism includes two connecting rods rotatably connected to the inner side of the worktable, a drive rod rotatably connected to one end of the two connecting rods, and a lifting rod slidably connected to the drive rod. The lifting rod is used for swing control of the drive rod. Each of the two connecting rods has an arc-shaped clamping plate rotatably disposed at one end for clamping the outer side of the gear. Each of the two drive rods has an arc-shaped top plate disposed on its inner side for tensioning the inner side of the gear. The connecting rods move outward together with the drive rods, allowing the two connecting rods to use the arc-shaped top plates at one end for expansion-type positioning of the inner side of the gear. The combined use of the arc-shaped top plate and the arc-shaped clamping plate improves the positioning effect of the positioning mechanism.

Description

Technical Field

[0001] This utility model relates to a high-precision positioning milling device for planetary gears, belonging to the technical field of planetary gear positioning equipment. Background Technology

[0002] Milling planetary gears is performed to precisely shape their complex tooth profiles and tooth grooves, ensuring smooth meshing, uniform load distribution, and low-noise operation in the transmission system. It also meets the stringent requirements of planetary gear systems for dimensional accuracy, positional tolerance, and surface quality, thereby improving the reliability and service life of the entire transmission device.

[0003] Currently, the positioning and clamping of planetary gears before milling mainly relies on a single reference positioning method of inner hole or outer circle. However, such traditional methods have obvious limitations: simple inner hole positioning is prone to uneven radial clamping force distribution, while relying solely on outer circle positioning is difficult to guarantee concentricity. If the positioning accuracy is compensated by increasing the clamping force, it is very easy to cause gear deformation or surface damage, which seriously affects the subsequent machining accuracy and gear fatigue life.

[0004] Therefore, it is urgent to improve the high-precision positioning milling device for planetary gears in order to solve the above-mentioned problems. Utility Model Content

[0005] The purpose of this invention is to provide a high-precision positioning milling device for planetary gears. The connecting rod moves outward together with the drive rod, so that the two connecting rods can use the arc-shaped top plate at one end to expand the positioning of the inner side of the gear. The combined use of the arc-shaped top plate and the arc-shaped clamping plate can make the positioning effect of the positioning mechanism better.

[0006] To achieve the above objectives, the main technical solution adopted by this utility model includes: a high-precision positioning milling device for planetary gears, comprising a worktable and a positioning mechanism disposed inside the worktable, wherein the positioning mechanism is used for positioning the planetary gears;

[0007] The positioning mechanism includes two connecting rods rotatably connected to the inner side of the worktable, a drive rod rotatably connected to one end of the two connecting rods, and a lifting rod slidably connected to the drive rod. The lifting rod is used for swing control of the drive rod.

[0008] Both connecting rods have an arc-shaped clamping plate at one end for clamping the gear on the outside, and both drive rods have an arc-shaped top plate on the inside for tensioning the gear on the inside.

[0009] Preferably, each of the two drive rods has a sliding groove on its inner side to allow the lifting rod to slide, and the inner wall of the sliding groove has a sliding pull groove on both opposite sides. The lifting rod is slidably connected to the sliding pull groove through a sliding shaft.

[0010] Preferably, the two drive rods are rotatably connected to a base at the ends away from the connecting rod, and a rotating column is rotatably connected to the center of the base. A threaded rod is fixedly provided at one end of the rotating column, and the threaded rod is threadedly engaged with the lifting rod.

[0011] Preferably, a forward and reverse motor is provided at the end of the rotating column away from the threaded rod, and the output end of the forward and reverse motor is fixedly connected to one end of the rotating column.

[0012] Preferably, a connecting rod is fixedly provided on the inner side of each of the two drive rods, the connecting rod is in an inclined state, and the arc-shaped top plate is fixedly provided at the end of the connecting rod away from the drive rod.

[0013] Preferably, each of the two connecting rods has a rotating seat rotatably mounted at one end, the arc-shaped clamp is fixedly connected to one side of the rotating seat, and the connecting rod is rotatably connected to the arc-shaped clamp through the rotating seat.

[0014] Preferably, the side of the worktable is provided with a sliding groove to allow the connecting rod and the connecting rod to move.

[0015] This utility model has at least the following beneficial effects:

[0016] As the lifting rod descends, its fixed length gradually pushes the drive rods on both sides outward. During this process, the end of the drive rod connected to the connecting rod expands outward. As the drive rod expands, it causes the connecting rod to rotate. Since the lower half of the connecting rod is rotatably connected to the inner wall of the worktable via a shaft, the upper half of the connecting rod moves inward. This allows the arc-shaped clamp to be used to position and clamp the outer wall of the gear.

[0017] During the above process, the connecting rod moves outward together with the drive rod, so that the two connecting rods can use the arc-shaped top plate at one end to expand and position the inside of the gear. The combined use of the arc-shaped top plate and the arc-shaped clamping plate can make the positioning effect of the positioning mechanism better. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a planetary gear high-precision positioning milling device in an embodiment of this utility model;

[0020] Figure 2 This is a three-dimensional top view of a planetary gear high-precision positioning milling device according to an embodiment of the present invention.

[0021] Figure 3 This is a three-dimensional schematic diagram of the positioning mechanism of a planetary gear high-precision positioning milling device according to an embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram showing the disassembled drive rod and lifting rod of a planetary gear high-precision positioning milling device according to an embodiment of this utility model.

[0023] In the diagram, 1. Workbench; 2. Connecting rod; 3. Rotating seat; 301. Arc-shaped clamping plate; 4. Slide groove; 5. Connecting rod; 6. Arc-shaped top plate; 8. Drive rod; 9. Lifting rod; 10. Base; 11. Rotating column; 12. Threaded rod; 13. Forward and reverse motor; 14. Sliding groove; 15. Sliding pull groove; 16. Sliding shaft. Detailed Implementation

[0024] The following will describe in detail the implementation of this application with reference to the accompanying drawings and embodiments, so that the implementation process of how this application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly.

[0025] Examples, such as Figures 1-4 As shown, a high-precision positioning milling device for planetary gears includes a worktable 1 and a positioning mechanism disposed inside the worktable 1. The positioning mechanism is used for the placement and positioning of the planetary gears. The positioning mechanism can position the gears to be milled, thereby preventing the gears from moving during the milling process and causing them to be scrapped.

[0026] The positioning mechanism includes two connecting rods 2 rotatably connected to the inner side of the worktable 1, a drive rod 8 rotatably connected to one end of the two connecting rods 2, and a lifting rod 9 slidably connected to the drive rod 8. The lifting rod 9 is used for swing control of the drive rod 8. One end of each of the two connecting rods 2 is rotatably provided with an arc-shaped clamping plate 301 for clamping the outer side of the gear. The inner side of each of the two drive rods 8 is provided with an arc-shaped top plate 6 for tensioning the inner side of the gear. A connecting rod 5 is fixedly provided on the inner side of each of the two drive rods 8. The connecting rod 5 is in an inclined state. The arc-shaped top plate 6 is fixedly provided at the end of the connecting rod 5 away from the drive rod 8. One end of each of the two connecting rods 2 is rotatably provided with a rotating... The moving seat 3 and the arc-shaped clamp 301 are fixedly connected to one side of the rotating seat 3. The connecting rod 2 is rotatably connected to the arc-shaped clamp 301 through the rotating seat 3. When the lifting rod 9 is descending, since its length is fixed, it can gradually push the driving rods 8 on both sides outward. During the process of being pushed out, the end of the driving rod 8 connected to the connecting rod 2 will expand outward. When the driving rod 8 expands, it will push the connecting rod 2 to rotate. Since the lower half of the connecting rod 2 is rotatably connected to the inner wall of the worktable 1 through the shaft, the upper half of the connecting rod 2 will move inward, so that the arc-shaped clamp 301 can be used to position and clamp the outer wall of the gear.

[0027] During the above process, the connecting rod 5 moves outward together with the driving rod 8, so that the two connecting rods 5 can use the arc-shaped top plate 6 set at one end to expand the positioning of the inner side of the gear. The cooperation between the arc-shaped top plate 6 and the arc-shaped clamping plate 301 can make the positioning effect of the positioning mechanism better.

[0028] Furthermore, both drive rods 8 have sliding grooves 14 on their inner sides to allow the lifting rods 9 to slide. The inner walls of the sliding grooves 14 have sliding pull grooves 15 on opposite sides. The lifting rods 9 are slidably connected to the sliding pull grooves 15 via sliding shafts 16. The opening of the sliding grooves 14 allows the two ends of the lifting rods 9 to slide inside the drive rods 8. The opening of the sliding grooves 14 allows the lifting rods 9 to push or pull the drive rods 8 to swing by using the sliding connection between the sliding shafts 16 and the sliding pull grooves 15, thereby achieving the above-mentioned driving effect.

[0029] Furthermore, the two drive rods 8 are rotatably connected to a base 10 at the end away from the connecting rod 2. A rotating column 11 is rotatably connected to the center of the base 10. A threaded rod 12 is fixedly installed at one end of the rotating column 11. The threaded rod 12 is threadedly connected to the lifting rod 9. A forward and reverse motor 13 is installed at the end of the rotating column 11 away from the threaded rod 12. The output end of the forward and reverse motor 13 is fixedly connected to one end of the rotating column 11. Since the base 10 is fixed to the inner wall of the worktable 1, the arrangement of the base 10 can connect the structure of the above positioning mechanism to the worktable 1.

[0030] When the positioning mechanism needs to be driven, the operator can control the opening or closing of the forward and reverse motor 13 through the controller, so that the forward and reverse motor 13 can drive the rotating column 11 and the threaded rod 12 to rotate, and then the threaded rod 12 can drive the lifting rod 9, which is threadedly connected to it, to move up and down between the two driving rods 8.

[0031] It should be noted that the controller controls the on / off state and polarity switching of the motor drive circuit through output signals, thereby realizing the motor's start / stop and forward / reverse rotation. This is a mature existing technology.

[0032] Furthermore, a slide groove 4 is provided on the side of the worktable 1 to allow the connecting rod 2 and the connecting rod 5 to move. The slide groove 4 provides sliding space for the connecting rod 2 and the connecting rod 5, thereby positioning the gear.

[0033] In this embodiment, as Figures 1-4 As shown in the figure, the principle of the planetary gear high-precision positioning milling device provided in this embodiment is as follows:

[0034] When the lifting rod 9 descends, since its length is fixed, it can gradually push the drive rods 8 on both sides outward. During the process of being pushed out, the end of the drive rod 8 connected to the connecting rod 2 will expand outward. When the drive rod 8 expands, it will push the connecting rod 2 to rotate. Since the lower half of the connecting rod 2 is rotatably connected to the inner wall of the worktable 1 through the shaft, the upper half of the connecting rod 2 will move inward, so that the outer wall of the gear can be positioned and clamped by the arc-shaped clamp 301.

[0035] During the above process, the connecting rod 5 moves outward together with the driving rod 8, so that the two connecting rods 5 can use the arc-shaped top plate 6 set at one end to expand the positioning of the inner side of the gear. The cooperation between the arc-shaped top plate 6 and the arc-shaped clamping plate 301 can make the positioning effect of the positioning mechanism better.

[0036] If certain terms are used in the specification and claims to refer to specific components, those skilled in the art will understand that hardware manufacturers may use different names to refer to the same component. This specification and claims do not distinguish components based on differences in name, but rather on differences in function. The term "comprising" as used throughout the specification and claims is an open-ended term and should be interpreted as "comprising but not limited to." "Approximately" means that within an acceptable margin of error, those skilled in the art can solve the technical problem and substantially achieve the technical effect within a certain margin of error.

[0037] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a product or system comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a product or system. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the product or system that includes that element.

[0038] The foregoing description illustrates and describes several preferred embodiments of the present invention. However, as previously stated, it should be understood that the present invention is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of the present invention should be within the protection scope of the appended claims.

Claims

1. A high-precision positioning milling device for planetary gears, comprising a worktable (1) and a positioning mechanism disposed inside the worktable (1), characterized in that: The positioning mechanism is used for the placement and positioning of the planetary gears; The positioning mechanism includes two connecting rods (2) rotatably connected to the inner side of the worktable (1), a drive rod (8) rotatably connected to one end of the two connecting rods (2), and a lifting rod (9) slidably connected to the drive rod (8). The lifting rod (9) is used for swing control of the drive rod (8). Both connecting rods (2) are rotatably provided with an arc-shaped clamping plate (301) for clamping the outside of the gear at one end, and both drive rods (8) are provided with an arc-shaped top plate (6) for tensioning the inside of the gear at the inside.

2. The planetary gear high-precision positioning milling device according to claim 1, characterized in that: Both drive rods (8) have sliding grooves (14) on their inner sides to allow the lifting rod (9) to slide. The inner walls of the sliding grooves (14) have sliding pull grooves (15) on opposite sides. The lifting rod (9) is slidably connected to the sliding pull grooves (15) via a sliding shaft (16).

3. The planetary gear high-precision positioning milling device according to claim 1, characterized in that: The two drive rods (8) are rotatably connected to a base (10) at one end away from the connecting rod (2). A rotating column (11) is rotatably connected at the center of the base (10). A threaded rod (12) is fixedly provided at one end of the rotating column (11). The threaded rod (12) is threadedly engaged with the lifting rod (9).

4. The planetary gear high-precision positioning milling device according to claim 3, characterized in that: A forward and reverse motor (13) is provided at the end of the rotating column (11) away from the threaded rod (12), and the output end of the forward and reverse motor (13) is fixedly connected to one end of the rotating column (11).

5. The planetary gear high-precision positioning milling device according to claim 4, characterized in that: A connecting rod (5) is fixedly provided on the inner side of each of the two drive rods (8). The connecting rod (5) is in an inclined state. The arc-shaped top plate (6) is fixedly provided at the end of the connecting rod (5) away from the drive rod (8).

6. The planetary gear high-precision positioning milling device according to claim 1, characterized in that: Both connecting rods (2) have a rotating seat (3) rotatably mounted at one end. The arc-shaped clamp (301) is fixedly connected to one side of the rotating seat (3). The connecting rod (2) is rotatably connected to the arc-shaped clamp (301) through the rotating seat (3).

7. The planetary gear high-precision positioning milling device according to claim 5, characterized in that: The upper side of the workbench (1) is provided with a sliding groove (4) to allow the connecting rod (2) and the connecting rod (5) to move.

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