Feeding and discharging device for gearbox body machining
By using the clamping mechanism and support block of the loading and unloading device for gearbox body processing, precise positioning and efficient clamping of the gearbox body are achieved, solving the problems of low processing accuracy and efficiency, and improving processing quality and stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN RUIGE TRANSMISSION MASCH CO LTD
- Filing Date
- 2025-06-07
- Publication Date
- 2026-05-08
AI Technical Summary
The existing gearbox body machining process suffers from low machining accuracy, low efficiency, and large deformation. In particular, in the clamping method of vertical machining centers, the stop surface is not fully supported, which leads to deformation of the machined surface. Furthermore, it is not easy to increase the machining parameters when the pressure plate presses the bearing end face.
A loading and unloading device for gearbox housing processing is adopted. Through the coordinated action of the clamping mechanism, support block, positioning block and positioning pin, the gearbox housing is accurately positioned and clamped in both directions synchronously. Combined with spring-assisted reset and modular design, it can adapt to the processing requirements of different models of gearbox housing.
It improves the machining accuracy and efficiency of the gearbox body, reduces workpiece deformation, lowers the difficulty of operation and maintenance costs, and enhances the quality and stability of the machined surface.
Smart Images

Figure CN224209523U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of gearbox manufacturing technology, and more specifically, to a loading and unloading device for gearbox body processing. Background Technology
[0002] Currently, new energy vehicles are entering a stage of rapid development. The most important component of new energy vehicles is the vehicle drive axle assembly, and the reducer is an important part of the vehicle drive axle assembly. Its processing accuracy and production efficiency directly affect the product performance and production cycle.
[0003] Currently, the first-order machining of this type of gearbox in a vertical machining center typically involves positioning the gearbox by the flange face, supporting one end of the stop face, and using a pressure plate to press the bearing housing end face for machining. However, the machining surface is not fully supported, resulting in significant deformation after the stop face is machined. Using a pressure plate to press the bearing end face from the side makes it difficult to increase machining parameters and results in low efficiency.
[0004] To address the aforementioned problems, this application provides a loading and unloading device for processing gearbox housings. Summary of the Invention
[0005] The technical solution of the loading and unloading device for gearbox housing processing provided in this application is as follows:
[0006] A loading and unloading device for processing a gearbox body includes a tooling body. A symmetrical clamping mechanism is provided through the top of the tooling body. Two sets of symmetrical support blocks are provided on the sidewalls of the tooling body. Positioning blocks are provided opposite each other in the cavities on the same side of the support blocks. Evenly distributed tightening nuts are provided on one side of the bottom of the tooling body, each tightening nut containing a positioning pin. Symmetrical support columns are provided at the bottom of the tooling body. A pressure plate is provided at the end of each support column near the support block. Studs are provided on the inner side of each pressure plate at the bottom of the tooling body. A flange nut is provided at the end of each pressure plate away from the support column near the tooling body. A gearbox body is located in the cavity of the sidewall of the tooling body away from the clamping mechanism.
[0007] Furthermore, the number of support blocks is three in a group, all located around the cavity on the side wall of the tooling body.
[0008] Furthermore, the main body of the tooling has a hollow structure.
[0009] Furthermore, the tightening mechanism includes a handle, an internal threaded block, a tightening post, a spring, and a retaining ring. There are two internal threaded blocks, and a tightening post is inserted through each internal threaded block. A handle is provided at the end of each tightening post away from the internal threaded block. A spring is provided around the internal threaded block on the outer wall of each tightening post opposite to the handle. A retaining ring is provided on the outer wall of each tightening post away from the handle.
[0010] Furthermore, the clamping mechanism is connected to the tooling body via an internal threaded block.
[0011] In summary, this application includes the following beneficial technical effects:
[0012] Through the coordinated action of the clamping mechanism, support block, positioning block, and positioning pin, the gearbox body is ensured to remain displacement during processing, improving machining accuracy. The bidirectional synchronous clamping mechanism, in conjunction with the pressure plate, applies force evenly, preventing workpiece deformation and ensuring the quality of the machined surface. The spring-assisted reset of the clamping mechanism reduces operation time and improves loading and unloading efficiency. The support block and positioning block are adjustable or replaceable to adapt to different models of gearbox bodies, reducing changeover time. This loading and unloading device significantly improves the accuracy, efficiency, and stability of gearbox body processing through precise positioning, efficient clamping, lightweight structure, and modular design, while reducing operating difficulty and maintenance costs. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this application;
[0014] Figure 2 This is a schematic diagram of the clamping mechanism structure of this application.
[0015] Explanation of the labels in the diagram:
[0016] 1. Tooling; 2. Tightening mechanism; 3. Support block; 4. Positioning block; 5. Positioning pin; 6. Tightening nut; 7. Support column; 8. Pressure plate; 9. Stud; 10. Flange nut; 11. Gearbox; 12. Handle; 13. Internal thread block; 14. Tightening column; 15. Spring; 16. Snap ring. Detailed Implementation
[0017] 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. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.
[0018] In the description of this application, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not 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. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0019] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Example
[0020] This application discloses a loading and unloading device for gearbox housing processing. Please refer to [link / reference]. Figures 1-2 The fixture includes a main body 1, with symmetrically arranged clamping mechanisms 2 penetrating its top. Two sets of symmetrically arranged support blocks 3 are located on the side walls of the main body 1. Positioning blocks 4 are positioned opposite each other in the cavity on the same side of the support blocks 3. Evenly distributed tightening nuts 6 are located on one side of the bottom of the main body 1, each containing a positioning pin 5. Symmetrically arranged support columns 7 are located at the bottom of the main body 1. Pressure plates 8 are located at the ends of the support columns 7 near the support blocks 3. Studs 9 are located on the inner side of the pressure plates 8 at the bottom of the main body 1. Flange nuts 10 are located at the ends of the pressure plates 8 away from the support columns 7 near the main body 1. A reduction gearbox 11 is located in the cavity on the side wall of the main body 1 away from the clamping mechanism 2. The support blocks 3 are arranged in groups of three. The tooling body 1 has a hollow structure on the periphery of the side wall cavity. The hollow tooling body 1 adopts a lightweight design, which takes into account both structural strength and weight reduction requirements. It is convenient to observe the internal clamping status and chip cleaning. The clamping mechanism 2 is symmetrically arranged on the top. It realizes the vertical positioning of the gearbox body through bidirectional synchronous clamping. It can be equipped with hydraulic or screw drive. The support blocks 3 are three in each group, evenly distributed at 120° on the periphery of the side wall cavity to form a stable support surface, which can adapt to different gearbox contours. The positioning block 4 is embedded in the side wall of the cavity and contacts the reference surface of the gearbox to ensure horizontal positioning accuracy. The positioning pin 5 and the tightening nut 6 are used. The positioning pin is used to achieve initial positioning with the gearbox process hole. The nut is locked to prevent loosening. The support column 7 and the pressure plate 8 are symmetrical pressure plate mechanisms linked with the flange nut 10 through the stud 9 to provide adjustable clamping force to adapt to gearbox tolerance fluctuations.
[0021] The tightening mechanism 2 includes a handle 12, an internal threaded block 13, a tightening post 14, a spring 15, and a retaining ring 16. There are two internal threaded blocks 13, each with a tightening post 14 penetrating through it. A handle 12 is located at the end of each tightening post 14 away from the internal threaded block 13. A spring 15 is arranged around the internal threaded block 13 on the outer wall of each tightening post 14, opposite to the handle 12. A retaining ring 16 is located on the outer wall of each tightening post 14 at the end away from the handle 12. The tightening mechanism 2 is connected to the tooling body 1 via the internal threaded blocks 13. The handle 12 is the manually operated end and features an anti-slip texture. The design facilitates rapid force application and rotation of the clamping column 14. The internal threaded block 13 is threadedly connected to the main body 1 of the tooling, fixing the position of the clamping mechanism 2 and serving as a guide and limiting structure for the clamping column 14. The clamping column 14 passes through the internal threaded block 13 and moves axially through rotation, directly clamping the reduction gearbox 11. A soft pad can be added to the end to prevent damage to the workpiece surface. The spring 15 is designed with preload to ensure that the clamping column 14 remains in the reset state when not in operation, avoiding loosening and providing a buffering effect to reduce the impact of rigid impact on the gearbox. The snap ring 16 provides axial limiting to prevent the clamping column 14 from excessively exiting the internal threaded block 13, ensuring the stability of the mechanism.
[0022] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A loading and unloading device for processing gearbox bodies, comprising a tooling body (1), characterized in that: The tooling body (1) has a symmetrical clamping mechanism (2) running through its top. The tooling body (1) has two symmetrical support blocks (3) on its side wall. The tooling body (1) has a positioning block (4) between the cavities on the same side of the support blocks (3). The tooling body (1) has a uniformly distributed tightening nut (6) on one side of its bottom. The tightening nut (6) has a positioning pin (5) inside each of the tightening nuts (6). The tooling body (1) has symmetrical support columns (7) at its bottom. The support column (7) has a pressure plate (8) at one end near the support block (3). The tooling body (1) has a stud (9) inside the pressure plate (8) at its bottom. The pressure plate (8) has a flange nut (10) at one end near the tooling body (1) on the side away from the support column (7). The tooling body (11) has a gearbox (11) in the cavity of the side wall away from the clamping mechanism (2).
2. The loading and unloading device for gearbox body processing according to claim 1, characterized in that: The number of the support blocks (3) is three in a group, all located outside the cavity of the side wall of the tooling body (1).
3. The loading and unloading device for gearbox housing processing according to claim 1, characterized in that: The tooling body (1) has a hollow structure.
4. The loading and unloading device for gearbox housing processing according to claim 1, characterized in that: The tightening mechanism (2) includes a handle (12), an internal thread block (13), a tightening column (14), a spring (15), and a retaining ring (16). There are two internal thread blocks (13), and a tightening column (14) is provided through each internal thread block (13). A handle (12) is provided at the end of the tightening column (14) away from the internal thread block (13). A spring (15) is provided between the internal thread block (13) on the outer wall of the tightening column (14) and the handle (12). A retaining ring (16) is provided on the outer wall of the end of the tightening column (14) away from the handle (12).
5. The loading and unloading device for gearbox housing processing according to claim 4, characterized in that: The clamping mechanism (2) is connected to the tooling body (1) via an internal threaded block (13).