Gear hub groove milling device

Abstract

The utility model relates to the technical field of gear hub groove milling, in particular to a gear hub groove milling device. Comprising a rack; a workbench is arranged on the rack; a milling device is arranged above the workbench; the fixing device comprises a placing disc, a clamping assembly and an auxiliary assembly; the placing disc and the rotating disc are coaxially arranged; the placing disc is arranged on the rotating disc through a hydraulic cylinder in an up-and-down moving manner; the clamping assembly comprises a movable plate and a clamping structure; a driving structure is arranged between the two movable plates; the clamping structure comprises a clamping block; the clamping block is rotationally mounted on the movable plate through a rotating shaft; arc-shaped clamping grooves are formed in the end faces, close to the containing disc, of the clamping blocks. A turning motor is fixed on the movable plate; an output shaft of the turning motor is fixedly connected with a rotating shaft of the clamping block; after the end face groove in one end of the gear hub body is machined, the containing disc moves downwards, the turning-around motor drives the clamping block to rotate so that the gear hub body can turn around, and then the containing disc is lifted to abut against the gear hub body to provide support.

Description

Technical Field

[0001] The utility model relates to the technical field of gear hub slot milling, in particular to a gear hub slot milling device. Background Art

[0002] The gear hub is one of the necessary parts in the structure of devices such as synchronizers. It is usually a three-groove structure with a tooth body on the outer ring. The gear hub is an important component in the synchronizer to adjust the speed and enable the gears to engage with each other. It is the key to the car's ability to achieve fast gear shifting, so its processing accuracy requirements are also high. Usually, a group of external splines of the gear hub and a group of axial grooves arranged alternately with the external splines of the gear hub are arranged in an annular shape and equidistant manner on the outside of the gear hub, and annular fixing grooves are provided on both sides of the gear hub. When processing the annular fixing groove of the gear hub, milling is often used. When milling the end face groove, the waste chips generated are cleaned from the end face groove

[0003] In the prior art, such as the Chinese patent with announcement number CN219379095U, entitled A device for milling end face grooves of a moving iron core of an electromagnetic valve, the disclosed technical solution records that the double gear is driven to rotate by a first gear, thereby driving the rack meshing with the double gear to move, thereby driving the fixed claws to close together, so as to clamp and fix the workpiece. However, when processing the gear hub, the end face grooves need to be milled at both ends. In this solution, the workpiece needs to be removed and turned over, and then re-clamped before the remaining end face grooves are milled, which affects the gear hub processing efficiency and has certain limitations. Utility Model Content

[0004] The utility model provides a gear hub groove milling device to solve the above problem.

[0005] The utility model adopts the following technical scheme: a gear hub milling device, comprising a frame; a workbench is arranged on the frame; a milling device is arranged above the workbench; a turntable is rotatably installed on the workbench; a rotating motor is fixed on the workbench; an output shaft of the rotating motor is fixedly connected to the turntable; a fixing device is arranged on the turntable;

[0006] The fixing device includes a placing plate, a clamping assembly, and an auxiliary assembly; the placing plate and the rotating plate are coaxially arranged; the placing plate is arranged on the rotating plate so as to move up and down through a hydraulic cylinder;

[0007] The clamping assembly is symmetrically arranged on both sides of the placement disk, including a movable plate and a clamping structure; the movable plate is arranged on the turntable to slide radially along the turntable; a driving structure is arranged between the two movable plates; the driving structure is used to drive the two movable plates to approach or move away synchronously; the clamping structure includes a clamping block; the clamping block is rotatably mounted on the movable plate through a rotating shaft; an arc-shaped clamping groove is arranged on the end face of the clamping block close to the placement disk; a U-turn motor is fixed on the movable plate; the output shaft of the U-turn motor and the rotating shaft of the clamping block are fixedly connected; when the end face groove at one end of the gear hub body is processed, the placement disk moves down, and the U-turn motor drives the clamping block to rotate to make the gear hub body turn around, and then the placement disk is raised to abut against the gear hub body to provide support.

[0008] The auxiliary component is arranged between the clamping block and the gear hub body, and is used to fit the gear hub body to ensure the clamping contact area. The auxiliary clamping groove is used to fasten the gear hub bodies of different sizes. On the one hand, it prevents the gear hub body from shifting in the clamping groove when the gear hub body is flipped and turned, and on the other hand, it reduces the vibration during the milling process.

[0009] Furthermore, the auxiliary component includes an auxiliary plate, a push block, and a power structure; the auxiliary plate is an arc-shaped elastic plate; the auxiliary plate is arranged at the center of the clamping groove by a connecting rod and sliding radially along the placement disk; there are two push blocks, which are symmetrically arranged on both sides of the clamping groove; the push block is a wedge-shaped elastic block, which is slidably installed on the clamping block by a connecting rod; the power structure is used for the clamping block to drive the auxiliary plate to approach the gear hub body, and when the gear hub body is positioned to the center of the placement disk, the push block is driven to approach the gear hub body, and the push block presses the two ends of the auxiliary plate to fit the gear hub body.

[0010] Furthermore, the power structure includes a first hydraulic cylinder and a second hydraulic cylinder; the first hydraulic cylinder is arranged in the clamping block, and the piston plate of the first hydraulic cylinder and the connecting rod of the auxiliary plate are fixedly connected; the second hydraulic cylinder is symmetrically arranged on both sides of the first hydraulic cylinder; the piston plate of the second hydraulic cylinder and the connecting rod of the push block are fixedly connected; the hydraulic chamber of the first hydraulic cylinder is connected to the hydraulic chamber of the second hydraulic cylinder. When in use, the clamping block drives the auxiliary plate to approach the gear hub body and positions the gear hub body to the center of the placement disk. The clamping block continues to move, and the gear hub body prevents the middle part of the auxiliary plate from continuing to move, thereby driving the hydraulic oil in the first hydraulic cylinder to enter the second hydraulic cylinder, so that the push block approaches the gear hub body, and the push block presses the two ends of the auxiliary plate against the gear hub body to fit, so as to achieve gear hub bodies of different sizes, ensure the contact area of ​​clamping, and improve the stability of the gear hub body during milling.

[0011] Furthermore, a rubber layer is installed on the side wall of the auxiliary plate close to the gear hub body.

[0012] Furthermore, a roller is rotatably mounted on one end of the push block close to the auxiliary piece.

[0013] Furthermore, the driving structure includes a driving screw; threads with opposite spiral directions are provided at both ends of the driving screw; the driving screw and the movable plate threads cooperate; a driving motor is fixed on the turntable; and the output shaft of the driving motor is fixedly connected to the driving screw.

[0014] The beneficial effect of the utility model is that after the end face groove at one end of the gear hub body is processed, the placement plate moves down, the turning motor drives the clamping block to rotate to turn the gear hub body, and then the placement plate is raised to abut against the gear hub body to provide support.

[0015] Furthermore, the clamping block drives the auxiliary piece to approach the gear hub body and positions the gear hub body to the center of the placement plate. The clamping block continues to move, and the gear hub body prevents the middle of the auxiliary piece from moving further, thereby driving the hydraulic oil in the first hydraulic cylinder into the second hydraulic cylinder, so that the push block approaches the gear hub body, and the push block presses the two ends of the auxiliary piece against the gear hub body to fit, achieving gear hub bodies of different sizes, ensuring the clamping contact area, and improving the stability of the gear hub body during milling. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 It is a structural schematic diagram of an embodiment of a gear hub slot milling device of the utility model;

[0018] Figure 2 A side view of an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of a fixing device according to an embodiment of the present utility model;

[0020] Figure 4 A top view of a fixing device according to an embodiment of the present utility model;

[0021] Figure 5 It is a cross-sectional view of a fixing device according to an embodiment of the utility model.

[0022] In the figure: 100, gear hub body; 200, frame; 210, workbench; 220, turntable; 300, milling device; 400, fixing device; 410, placement plate; 421, movable plate; 422, clamping block; 423, U-turn motor; 424, driving structure; 431, auxiliary plate; 432, push block; 433, first hydraulic cylinder; 434, second hydraulic cylinder. DETAILED DESCRIPTION

[0023] The embodiments of the utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and should not be construed as limiting the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model.

[0024] The features of the terms "first" and "second" in the specification and claims of the utility model may explicitly or implicitly include one or more of the features. In the description of the utility model, unless otherwise specified, the meaning of "plurality" is two or more.

[0025] In the description of the present invention, it should be understood that the terms "center", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] An embodiment of a gear hub slot milling device of the utility model is as follows Figures 1 to 5 As shown: a gear hub slot milling device, comprising a frame 200; a workbench 210 is provided on the frame 200; a milling device 300 is provided above the workbench 210; a turntable 220 is rotatably mounted on the workbench 210; a rotating motor is fixed on the workbench 210; an output shaft of the rotating motor is fixedly connected to the turntable 220; a fixing device 400 is provided on the turntable 220;

[0028] The fixing device 400 includes a placement plate 410, a clamping assembly, and an auxiliary assembly; the placement plate 410 and the rotating plate 220 are coaxially arranged; the placement plate 410 is arranged on the rotating plate 220 to move up and down through a hydraulic cylinder;

[0029] The clamping assembly is symmetrically arranged on both sides of the placement plate 410, including a movable plate 421 and a clamping structure; the movable plate 421 is arranged on the turntable 220 to slide radially along the turntable 220; a driving structure 424 is provided between the two movable plates 421; the driving structure 424 is used to drive the two movable plates 421 to move synchronously closer or farther away; the driving structure 424 includes a driving screw; threads with opposite spiral directions are provided at both ends of the driving screw; the driving screw and the movable plate 421 are threadedly matched; a driving motor is fixed on the turntable 220; the output shaft of the driving motor and the driving screw are fixedly connected.

[0030] The clamping structure includes a clamping block 422; the clamping block 422 is rotatably mounted on the movable plate 421 via a rotating shaft; an arc-shaped clamping groove is provided on the end face of the clamping block 422 close to the placement disk 410; a U-turn motor 423 is fixed on the movable plate 421; the output shaft of the U-turn motor 423 and the rotating shaft of the clamping block 422 are fixedly connected; when the end face groove at one end of the gear hub body 100 is processed, the placement disk 410 moves down, and the U-turn motor 423 drives the clamping block 422 to rotate, so that the gear hub body 100 turns around, and then, the placement disk 410 is raised to abut against the gear hub body 100 to provide support.

[0031] The auxiliary component is arranged between the clamping block 422 and the gear hub body 100, and is used to fit the gear hub body 100 to ensure the contact area of ​​clamping. The auxiliary clamping groove fastens the gear hub body 100 of different sizes. On the one hand, it prevents the gear hub body 100 from shifting in the clamping groove when the gear hub body 100 is turned over, and on the other hand, it reduces the vibration during the milling process. The auxiliary component includes an auxiliary sheet 431, a push block 432, and a power structure; the auxiliary sheet 431 is an arc-shaped elastic sheet; the auxiliary sheet 431 is radially slidably arranged at the center of the clamping groove along the placement disk 410 through a connecting rod; two push blocks 432 are provided, symmetrically arranged on both sides of the clamping groove; the push block 432 is a wedge-shaped elastic block, which is slidably installed on the clamping block 422 through a connecting rod; a rubber layer is installed on the side wall of the auxiliary sheet 431 close to the gear hub body 100. A roller is rotatably installed at one end of the push block 432 close to the auxiliary sheet 431.

[0032] The power structure is used for the clamping block 422 to drive the auxiliary piece 431 to approach the gear hub body 100, and when the gear hub body 100 is positioned at the center of the placement plate 410, the push block 432 is driven to approach the gear hub body 100, and the push block 432 presses the two ends of the auxiliary piece 431 against the gear hub body 100. The power structure includes a first hydraulic cylinder 433 and a second hydraulic cylinder 434; the first hydraulic cylinder 433 is arranged in the clamping block 422, and the piston plate of the first hydraulic cylinder 433 and the connecting rod of the auxiliary piece 431 are fixedly connected; the second hydraulic cylinder 434 is symmetrically arranged on both sides of the first hydraulic cylinder 433; the piston plate of the second hydraulic cylinder 434 and the connecting rod of the push block 432 are fixedly connected; the hydraulic chamber of the first hydraulic cylinder 433 and the hydraulic chamber of the second hydraulic cylinder 434 are connected. When in use, the clamping block 422 drives the auxiliary piece 431 to approach the gear hub body 100, and positions the gear hub body 100 at the center of the placement plate 410. The clamping block 422 continues to move, and the gear hub body 100 prevents the middle part of the auxiliary plate 431 from moving further, thereby driving the hydraulic oil in the first hydraulic cylinder 433 to enter the second hydraulic cylinder 434, so that the pushing block 432 approaches the gear hub body 100, and the pushing block 432 presses the two ends of the auxiliary plate 431 to fit the gear hub body 100, thereby ensuring the clamping contact area for gear hub bodies 100 of different sizes and improving the stability of the gear hub body 100 during milling.

[0033] In combination with the above embodiments, the use principle and working process of the utility model are as follows: the driving structure 424 drives the clamping block 422 to approach the gear hub body 100 synchronously through the movable plate 421. The clamping block 422 drives the auxiliary plate 431 to approach the gear hub body 100, and positions the gear hub body 100 at the center of the placement plate 410. The clamping block 422 continues to move, and the gear hub body 100 prevents the middle part of the auxiliary plate 431 from continuing to move, thereby driving the hydraulic oil in the first hydraulic cylinder 433 to enter the second hydraulic cylinder 434, so that the push block 432 approaches the gear hub body 100, and the push block 432 presses the two ends of the auxiliary plate 431 against the gear hub body 100 to fit, so as to achieve different sizes of gear hub bodies 100, ensure the clamping contact area, and improve the stability of the gear hub body 100 during milling.

[0034] When the end face groove at one end of the hub body 100 is processed, the placement plate 410 moves down, and the turning motor 423 drives the clamping block 422 to rotate to turn the hub body 100 around, and then the placement plate 410 is raised to abut against the hub body 100 to provide support.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A gear hub milling device, characterized in that: The machine comprises a frame (200); a workbench (210) is provided on the frame (200); a milling device (300) is provided above the workbench (210); a turntable (220) is rotatably mounted on the workbench (210); and a fixing device (400) is provided on the turntable (220); The fixing device (400) comprises a placement plate (410), a clamping assembly, and an auxiliary assembly; the placement plate (410) and the rotating plate (220) are coaxially arranged; the placement plate (410) is arranged on the rotating plate (220) so as to move up and down; The clamping assembly is symmetrically arranged on both sides of the placement disk (410), and comprises a movable plate (421) and a clamping structure; the movable plate (421) is arranged on the turntable (220) in a radially sliding manner along the turntable (220); a driving structure (424) is arranged between the two movable plates (421); the driving structure (424) is used to drive the two movable plates (421) to move synchronously closer or farther away; the clamping structure comprises a clamping block (422); the clamping block (422) is rotatably mounted on the movable plate (421) via a rotating shaft; an arc-shaped clamping groove is arranged on the end surface of the clamping block (422) close to the placement disk (410); a U-turn motor (423) is fixed on the movable plate (421); the output shaft of the U-turn motor (423) is fixedly connected to the rotating shaft of the clamping block (422); The auxiliary component is arranged between the clamping block (422) and the gear hub body (100) and is used to fit the gear hub body (100) to ensure the clamping contact area. The auxiliary clamping groove is used to fasten the gear hub bodies (100) of different sizes. On the one hand, it prevents the gear hub body (100) from shifting in the clamping groove when the gear hub body (100) is turned over, and on the other hand, it reduces the vibration during the milling process.

2. A gear hub slot milling device according to claim 1, characterized in that: The auxiliary component comprises an auxiliary sheet (431), a push block (432) and a power structure; the auxiliary sheet (431) is an arc-shaped elastic sheet; the auxiliary sheet (431) is radially slidably arranged at the center of the clamping groove along the placement disk (410) through a connecting rod; two push blocks (432) are provided, which are symmetrically arranged on both sides of the clamping groove; the push blocks (432) are wedge-shaped elastic blocks, which are slidably installed on the clamping block (422) through a connecting rod; the power structure is used for the clamping block (422) to drive the auxiliary sheet (431) to approach the gear hub body (100), and when the gear hub body (100) is positioned at the center of the placement disk (410), the push blocks (432) are driven to approach the gear hub body (100), and the push blocks (432) press the two ends of the auxiliary sheet (431) against the gear hub body (100) to fit.

3. A hub milling device according to claim 2, characterized in that: The power structure comprises a first hydraulic cylinder (433) and a second hydraulic cylinder (434); the first hydraulic cylinder (433) is arranged in the clamping block (422), and the piston plate of the first hydraulic cylinder (433) and the connecting rod of the auxiliary plate (431) are fixedly connected; the second hydraulic cylinder (434) is symmetrically arranged on both sides of the first hydraulic cylinder (433); the piston plate of the second hydraulic cylinder (434) and the connecting rod of the push block (432) are fixedly connected; the hydraulic chamber of the first hydraulic cylinder (433) is connected to the hydraulic chamber of the second hydraulic cylinder (434).

4. A gear hub slot milling device according to claim 3, characterized in that: A rubber layer is installed on the side wall of the auxiliary sheet (431) close to the gear hub body (100).

5. A gear hub slot milling device according to claim 4, characterized in that: A roller is rotatably mounted on one end of the push block (432) close to the auxiliary piece (431).

6. A gear hub slot milling device according to claim 1, characterized in that: The driving structure (424) comprises a driving screw rod; threads with opposite spiral directions are arranged at both ends of the driving screw rod; the driving screw rod and the movable plate (421) are threadedly matched; a driving motor is fixed on the rotating disk (220); and the output shaft of the driving motor is fixedly connected to the driving screw rod.

Images