Gearbox gear high-precision machining auxiliary tool

Abstract

The utility model discloses a kind of gearbox gear high-precision processing auxiliary tool, relate to gearbox gear processing technical field.The utility model includes bottom plate, the bottom plate top is fixedly connected with cylinder, the cylinder output end swing connection has clamping plate, the clamping plate top is provided with gearbox gear body, the gearbox gear body top is provided with presser plate;The presser plate bottom is provided with anti-offset component, and the anti-offset component includes the threaded rod being set in the presser plate inside.Synergic effect of threaded rod, threaded sleeve and bracing plate in anti-offset component, bracing plate and gearbox gear body inner surface are in close contact, form radial support force.Combination presser plate and clamping plate's up and down clamping, the multidirectional fixation to gearbox gear body is realized.This structure effectively offsets the tendency of deviation caused by cutting force in the processing process, significantly improves the machining precision of gearbox gear body.

Description

Technical Field

[0001] This utility model belongs to the field of gearbox gear processing technology, and in particular relates to an auxiliary tooling for high-precision processing of gearbox gears. Background Technology

[0002] Gearbox gears are the core components of a gearbox used to transmit power and regulate speed and torque. Through the meshing of gears, they achieve power conversion and adjustment, enabling the vehicle to operate under different conditions. To improve the machining accuracy, efficiency, and stability of gearbox gears, and to reduce machining errors, auxiliary tooling is used during machining.

[0003] Existing auxiliary tooling simply clamps the gear vertically or horizontally on both sides during gearbox gear machining. Because the clamping force is located on both sides of the gear, the gear is prone to shifting during machining, affecting machining accuracy. Furthermore, once clamped and fixed, the gear machining position is not adjustable, requiring the machining equipment to be moved for circumferential machining, which reduces machining efficiency. To address these issues, we provide a high-precision machining auxiliary tooling for gearbox gears to solve the above problems. Utility Model Content

[0004] The purpose of this utility model is to provide a high-precision machining auxiliary fixture for gearbox gears. By using anti-offset components and rotation components, it solves the problem that the gearbox gears are prone to positional offset and cannot be rotated during the use of existing machining auxiliary fixtures, which leads to a reduction in machining accuracy and efficiency.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution.

[0006] This utility model relates to an auxiliary tooling for high-precision machining of gearbox gears, comprising a base plate, a cylinder fixedly connected to the top of the base plate, a clamping plate movably connected to the output end of the cylinder, a gearbox gear body disposed on the top of the clamping plate, and a pressure plate disposed on the top of the gearbox gear body; an anti-deviation component disposed at the bottom of the pressure plate, the anti-deviation component comprising a threaded rod disposed inside the pressure plate, a threaded sleeve threadedly connected to the surface of the threaded rod, and a support plate fixedly connected to the bottom of the threaded sleeve; and a rotating component disposed on the top of the base plate, the rotating component comprising a semi-annular rack fixedly connected to the top of the base plate, and a drive gear meshing with the top of the semi-annular rack.

[0007] The present invention is further configured such that the anti-deviation component includes a bracket fixedly connected to the top of the pressure plate, a first motor fixedly connected to the bottom of the bracket, a rotating rod fixedly connected to the output end of the first motor, a driving wheel fixedly connected to the bottom of the rotating rod, a driven wheel meshing with one side of the driving wheel, and a vertical plate movably connected to the surface of the threaded rod.

[0008] The present invention is further configured such that a guide rod is fixedly connected to one side of the vertical plate, and a limiting plate is sleeved on the surface of the guide rod.

[0009] The present invention is further configured such that the rotating assembly includes a second motor fixedly connected to one side of the drive gear, a connecting frame fixedly connected to one side of the second motor, a movable frame fixedly connected to one side of the clamping plate, a fixed frame sleeved on the surface of the movable frame, and a limiting slider fixedly connected to the bottom of the connecting frame.

[0010] The present invention is further configured such that a limiting block is fixedly connected to one side of the movable frame, and a limiting groove adapted to the limiting block is provided inside the fixed frame.

[0011] The present invention is further configured such that the bottom of the gearbox gear body is in contact with the clamping plate, and the top of the gearbox gear body is in contact with the pressure plate.

[0012] The present invention is further configured such that a mounting hole is provided on the top of the base plate, and the support plate is in contact with the inner surface of the gearbox gear body.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model utilizes the synergistic effect of the threaded rod, threaded sleeve, and support plate in the anti-offset assembly. The support plate is in close contact with the inner surface of the gearbox gear body, forming a radial support force. Combined with the upper and lower clamping of the pressure plate and clamping plate, multi-directional fixation of the gearbox gear body is achieved. This structure effectively counteracts the offset tendency caused by cutting force during processing, significantly improving the processing accuracy of the gearbox gear body.

[0015] 2. This invention utilizes the meshing transmission between a semi-circular rack and a drive gear in the rotating assembly, with a second motor driving the drive gear to rotate along a semi-circular direction. The processing equipment can complete continuous processing of half a circumference of the gearbox gear body without frequent position adjustments, reducing downtime for adjustments and improving processing efficiency. The anti-deviation assembly and rotating assembly adopt a modular design, with the extension and retraction of the support plate and the rotation of the gearbox gear body controlled by the first and second motors respectively, simplifying the operation process. The cooperation of the limit slider and limit groove further ensures the stability of the rotation process and reduces the need for manual intervention.

[0016] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0017] 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.

[0018] Figure 1 This is a three-dimensional view of an auxiliary tooling for high-precision machining of gearbox gears.

[0019] Figure 2 This is a cross-sectional view of the pressure plate in an auxiliary tooling for high-precision machining of gearbox gears.

[0020] Figure 3 This is a top sectional view of the gearbox gear body in an auxiliary tooling for high-precision machining of gearbox gears.

[0021] Figure 4 This is a cross-sectional view of a fixed bracket in an auxiliary tooling for high-precision machining of gearbox gears.

[0022] Figure 5 This is a top view of an auxiliary tooling for high-precision machining of gearbox gears.

[0023] In the attached diagram: 1. Base plate; 2. Cylinder; 3. Clamping plate; 4. Gearbox gear body; 5. Pressure plate; 6. Anti-deviation component; 601. Threaded rod; 602. Threaded sleeve; 603. Support plate; 604. Bracket; 605. First motor; 606. Rotating rod; 607. Drive wheel; 608. Driven wheel; 609. Vertical plate; 7. Rotating component; 701. Semi-annular rack; 702. Drive gear; 703. Second motor; 704. Connecting frame; 705. Movable frame; 706. Fixed frame; 707. Limiting slider. Detailed Implementation

[0024] 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.

[0025] For a specific implementation example, please refer to Implementation Example 1. Figures 1-5This utility model is an auxiliary tooling for high-precision machining of gearbox gears, including a base plate 1, a cylinder 2 fixedly connected to the top of the base plate 1, a clamping plate 3 movably connected to the output end of the cylinder 2, a connecting plate fixedly connected to the output end of the cylinder 2, and the connecting plate and the clamping plate 3 movably connected by bearings. A gearbox gear body 4 is provided on the top of the clamping plate 3. The gearbox gear body 4 is a key component in automotive or other mechanical transmission systems used to achieve different transmission ratios and adjust output speed. It is a mature existing technology and will not be described in detail here. A pressure plate 5 is provided on the top of the gearbox gear body 4. An anti-deviation component 6 is provided at the bottom of the pressure plate 5. The anti-deviation component 6 includes a threaded rod 601 provided inside the pressure plate 5, a threaded sleeve 602 threadedly connected to the surface of the threaded rod 601, and a support plate 603 fixedly connected to the bottom of the threaded sleeve 602. A rotating component 7 is provided on the top of the base plate 1. The rotating component 7 includes a semi-annular rack 701 fixedly connected to the top of the base plate 1 and a drive gear 702 meshing with the top of the semi-annular rack 701.

[0026] For a specific embodiment two, please refer to Figures 1-5 Based on the first specific embodiment, the anti-deviation component 6 further includes a bracket 604 fixedly connected to the top of the pressure plate 5, a first motor 605 fixedly connected to the bottom of the bracket 604, a rotating rod 606 fixedly connected to the output end of the first motor 605, a drive wheel 607 fixedly connected to the bottom of the rotating rod 606, the bottom of the rotating rod 606 extending into the interior of the pressure plate 5 and fixedly connected to the drive wheel 607, the rotating rod 606 and the pressure plate 5 being movably connected via a sealed bearing, a driven wheel 608 meshing with one side of the drive wheel 607, a vertical plate 609 movably connected to the surface of the threaded rod 601, the top of the vertical plate 609 being fixedly connected to the pressure plate 5, the threaded rod 601 and the vertical plate 609 being movably connected via a bearing, a guide rod fixedly connected to one side of the vertical plate 609, a limiting plate sleeved on the surface of the guide rod, the bottom of the limiting plate being fixedly connected to the threaded sleeve 602, and the limiting plate being movable along the guide rod surface. The moving and rotating assembly 7 also includes a second motor 703 fixedly connected to one side of the drive gear 702, a connecting frame 704 fixedly connected to one side of the second motor 703, a movable frame 705 fixedly connected to one side of the clamping plate 3, a fixed frame 706 sleeved on the surface of the movable frame 705, the fixed frame 706 fixedly connected to the pressure plate 5, the connecting frame 704 fixedly connected to the fixed frame 706, a limiting slider 707 fixedly connected to the bottom of the connecting frame 704, a semi-annular groove adapted to the limiting slider 707 opened on the top of the base plate 1, a limiting block fixedly connected to one side of the movable frame 705, a limiting groove adapted to the limiting block opened inside the fixed frame 706, the bottom of the gearbox gear body 4 contacts the clamping plate 3, the top of the gearbox gear body 4 contacts the pressure plate 5, the top of the base plate 1 has a mounting hole, and the support plate 603 contacts the inner surface of the gearbox gear body 4.

[0027] The operation process in this embodiment is as follows: the gearbox gear body 4 is placed on the clamping plate 3, and the cylinder 2 pushes the clamping plate 3 to rise, cooperating with the pressure plate 5 to complete the upper and lower clamping. Subsequently, the first motor 605 is started, driving the driving wheel 607 and the driven wheel 608 to rotate through the rotating rod 606, driving the threaded rod 601 to rotate, causing the threaded sleeve 602 to drive the support plate 603 to expand radially, closely adhering to the inner wall of the gearbox gear body 4, forming a three-point positioning, and completely eliminating the risk of displacement during processing.

[0028] The second motor 703 drives the drive gear 702 to roll along the semi-annular rack 701, causing the movable frame 705, the clamping plate 3 fixed thereon, and the gearbox gear body 4 to rotate as a whole. The limit slider 707 slides within the semi-annular groove to ensure precise rotation trajectory. The processing equipment can be fixed at a certain station to continuously process the rotating gear, achieving multi-angle processing within a half-circumference range.

[0029] After processing, the first motor 605 reverses and retracts the support plate 603, the cylinder 2 retracts the clamping plate 3, and the gearbox gear body 4 is released from its fixed position and can be easily removed. The entire process does not require disassembly of the tooling, significantly saving material changeover time. Through the synergistic action of the anti-deviation component 6 and the rotating component 7, the problems of unstable clamping and limited processing position of traditional tooling are solved, achieving both high precision and high efficiency, making it suitable for batch processing scenarios of the gearbox gear body 4.

[0030] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0031] 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 the specific implementations described. 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 high-precision machining auxiliary fixture for gearbox gears, comprising a base plate (1), characterized in that: A cylinder (2) is fixedly connected to the top of the base plate (1), and a clamping plate (3) is movably connected to the output end of the cylinder (2). A gearbox gear body (4) is provided on the top of the clamping plate (3), and a pressure plate (5) is provided on the top of the gearbox gear body (4). The bottom of the pressure plate (5) is provided with an anti-offset component (6). The anti-offset component (6) includes a threaded rod (601) disposed inside the pressure plate (5), a threaded sleeve (602) threadedly connected to the surface of the threaded rod (601), and a support plate (603) fixedly connected to the bottom of the threaded sleeve (602). The base plate (1) is provided with a rotating assembly (7) on its top. The rotating assembly (7) includes a semi-annular rack (701) fixedly connected to the top of the base plate (1) and a drive gear (702) meshing with the top of the semi-annular rack (701).

2. The auxiliary tooling for high-precision machining of gearbox gears according to claim 1, characterized in that, The anti-deviation component (6) further includes a bracket (604) fixedly connected to the top of the pressure plate (5), a first motor (605) fixedly connected to the bottom of the bracket (604), a rotating rod (606) fixedly connected to the output end of the first motor (605), a driving wheel (607) fixedly connected to the bottom of the rotating rod (606), a driven wheel (608) meshing with one side of the driving wheel (607), and a vertical plate (609) movably connected to the surface of the threaded rod (601).

3. The auxiliary tooling for high-precision machining of gearbox gears according to claim 2, characterized in that, A guide rod is fixedly connected to one side of the vertical plate (609), and a limiting plate is sleeved on the surface of the guide rod.

4. The auxiliary tooling for high-precision machining of gearbox gears according to claim 1, characterized in that, The rotating assembly (7) also includes a second motor (703) fixedly connected to one side of the drive gear (702), a connecting frame (704) fixedly connected to one side of the second motor (703), a movable frame (705) fixedly connected to one side of the clamping plate (3), a fixed frame (706) sleeved on the surface of the movable frame (705), and a limiting slider (707) fixedly connected to the bottom of the connecting frame (704).

5. The auxiliary tooling for high-precision machining of gearbox gears according to claim 4, characterized in that, The movable frame (705) is fixedly connected to a limiting block on one side, and the fixed frame (706) has a limiting groove inside that is adapted to the limiting block.

6. The auxiliary tooling for high-precision machining of gearbox gears according to claim 1, characterized in that, The bottom of the gearbox gear body (4) is in contact with the clamping plate (3), and the top of the gearbox gear body (4) is in contact with the pressure plate (5).

7. The auxiliary tooling for high-precision machining of gearbox gears according to claim 1, characterized in that, The bottom plate (1) has a mounting hole at the top, and the support plate (603) is in contact with the inner surface of the gearbox gear body (4).

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