An assembly jig for axle housing machining
By linking the inner hole limiting component and the motor-driven turntable, combined with the lifting and bridge housing limiting components, the problem that traditional bridge housing fixtures cannot accurately adapt to complex shapes and sizes is solved, and high-precision and high-efficiency machining of bridge housings is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JINAN RUIPAI MECHANICAL & ELECTRICAL EQUIPMENT MANUFACTURING CO LTD
- Filing Date
- 2025-06-04
- Publication Date
- 2026-07-24
AI Technical Summary
Traditional bridge housing machining fixtures have limited functionality, making it difficult to meet the demands for high-precision and high-efficiency machining. They cannot accurately adapt to the complex shapes and dimensions of different parts of the bridge housing, and the angle adjustment is inconvenient, which affects production efficiency.
The system employs an internal hole limiting component, a motor-driven turntable, a slider, and a limiting rod in conjunction with a lifting component and limiting components on the upper and end sides of the axle housing. Stable support and angle adjustment of the axle housing are achieved through an electric push rod, and the angle of the axle housing support plate can be quickly adjusted using the design of an arc-shaped slide groove and bolts.
It achieves stable support for the inner hole of the axle housing, prevents displacement, allows for rapid adjustment of the axle housing angle, improves machining accuracy and efficiency, and saves operation time.
Smart Images

Figure CN224544373U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of assembly fixture equipment for bridge housing processing, specifically, to an assembly fixture for bridge housing processing. Background Technology
[0002] As a crucial component of the vehicle's transmission system, the axle housing is typically located within the vehicle's chassis. Traditional assembly fixtures, when machining axle housings, often have limited functionality and struggle to meet the demands of high-precision and high-efficiency processing. Fixing the axle housing usually only allows for simple unidirectional positioning, failing to accurately accommodate the complex shapes and dimensions of different parts of the axle housing. For example, the lack of a flexible, precisely adaptable structure for fitting the inner bore during positioning can easily lead to displacement of the axle housing during machining, affecting processing accuracy. Furthermore, adjusting the angle of the axle housing is extremely inconvenient, generally requiring significant manpower and time to disassemble and reassemble the fixtures, greatly reducing production efficiency. Simultaneously, traditional fixtures are cumbersome for positioning the upper and end parts of the axle housing, making it difficult to quickly and securely fix the axle housing in the ideal machining position, thus failing to meet the demands of modern manufacturing for fast, precise, and efficient axle housing machining.
[0003] This is a question worth exploring. Utility Model Content
[0004] This utility model provides an assembly fixture for axle housing processing. This assembly fixture, through an inner hole limiting component, utilizes the linkage of a motor-driven turntable, slider, and limiting rod to accurately support the inner wall of the axle housing center hole, achieving stable support for the axle housing inner hole and effectively preventing displacement of the axle housing inner hole during processing.
[0005] An assembly fixture for machining a bridge housing includes a base, on which an angle adjustment component is provided. The angle adjustment component is connected to a bridge housing support plate for supporting the bridge housing. A lifting component is provided on the bridge housing support plate. The lifting component is connected to an inner hole limiting component. The lifting component is used to lift the inner hole limiting component, and the inner hole limiting component is used to limit the inner hole of the bridge housing. The bridge shell support plate is provided with upper limit components on both sides to press down the bridge shell. The bridge shell support plate is provided with bridge shell end limiting components at both ends for limiting the ends of the bridge shell.
[0006] Furthermore, the inner hole limiting assembly includes a motor cavity, a sliding groove, a slider, a guide rod, a fixed plate, a turntable, and a limiting rod. The motor cavity fixes the fixed plate. The fixed plate has four sliding grooves arranged in a cross shape. Each sliding groove has a guide rod fixed in it. Each guide rod passes through the slider. Each slider is slidably disposed in its corresponding sliding groove. The lower fixed vertical shaft of each slider passes through an oblique sliding groove on the turntable. The lower fixed vertical shaft of each slider matches the oblique sliding groove. The central shaft of the turntable is rotatably connected to the fixed plate. The end of the central shaft of the turntable is fixedly connected to the output shaft inside the motor cavity. The lower fixed vertical shaft of the slider is fixedly connected to the limiting rod.
[0007] Furthermore, the lifting assembly includes a second electric push rod and a connecting rod, wherein the housing of the second electric push rod fixes one end of the connecting rod, and the other end of the connecting rod is fixedly connected to the motor cavity.
[0008] Furthermore, the upper limiting assembly of the axle housing includes a pressure plate, a first electric push rod, and a vertical slide rail. The fixed end of the vertical slide rail is fixed to the axle housing support plate, and the movable end of the vertical slide rail is fixedly connected to the pressure plate. The pressure plate fixes the telescopic rod of the first electric push rod, and the first electric push rod fixes the axle housing support plate.
[0009] Furthermore, the axle housing end limiting assembly includes a bracket, a connecting rod, a clamping block, a hinge block, and a third electric push rod. The bracket fixes the axle housing support plate, and the bracket is fixedly connected to the third electric push rod. The telescopic rod of the third electric push rod passes through the bracket, and the end of the telescopic rod of the third electric push rod is rotatably connected to one end of the clamping block. The middle of both sides of the clamping block is rotatably connected to the connecting rod, and the connecting rod is rotatably connected to the hinge block. The hinge block is fixedly connected to the bracket, and the other end of the clamping block can abut against the inner wall of the axle housing end to limit the axle housing.
[0010] Furthermore, the angle adjustment assembly includes a fixed plate, an arc-shaped groove, bolts, nuts, and a handle. The fixed plate is fixed to both ends of the base. The arc-shaped groove is formed on the fixed plate. The bolts are fixed to one end of both sides of the bridge housing support plate. Each bolt passes through the corresponding arc-shaped groove. Each bolt is threaded to the nut. The handle is fixed to the end of each bolt. A protrusion fixed to the lower part of the bridge housing support plate is fixedly connected to the mounting shaft. The mounting shaft is rotatably connected to the bearing seat. The bearing seat is fixed to one side of the base.
[0011] Furthermore, a set of evenly arranged support blocks are fixed on the base corresponding to one side of the bolt. The upper side of the support block is an inclined surface, and the support block can support the bridge shell support plate.
[0012] Compared with the prior art, the advantages and positive effects of this utility model are: This assembly fixture, through the inner hole limiting component, utilizes the linkage of the motor-driven turntable, slider, and limiting rod to accurately support the inner wall of the axle housing center hole, achieving stable support for the axle housing inner hole and effectively preventing displacement of the axle housing inner hole during machining. The angle adjustment component allows for convenient adjustment of the axle housing support plate angle. By loosening the nut and pulling the handle, combined with the design of the arc-shaped slide and bolt, the axle housing support plate can be quickly rotated to the appropriate angle. Tightening the nut then achieves locking and limiting, meeting the angle requirements of different processing procedures. The second electric push rod in the lifting assembly controls the lifting of the limit rod, making it easy for it to be inserted into or removed from the inner hole of the axle housing, saving operation time. The first electric push rod of the upper limit assembly of the axle housing drives the pressure plate to move, and the third electric push rod of the end limit assembly of the axle housing drives the clamping block to move, both of which can quickly achieve the pressing and releasing of the corresponding parts of the axle housing. Attached Figure Description
[0013] 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. Obviously, the drawings described below are merely some embodiments of this utility model, and those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings: Figure 1 The three-dimensional representation of this utility model Figure One ; Figure 2 The three-dimensional representation of this utility model Figure Two ; Figure 3 For the present utility model Figure 2 A magnified view of a section at point A in the middle; Figure 4 The three-dimensional representation of this utility model Figure Three ; Figure 5 This is a partial perspective view of the present invention.
[0014] In the diagram: 1. Bridge housing; 2. Inner hole limiting assembly; 201. Motor cavity; 202. Slide groove; 203. Slider; 204. Guide rod; 205. Fixed plate; 206. Turntable; 2061. Inclined slide groove; 207. Limiting rod; 3. Upper limiting assembly of bridge housing; 301. Pressure plate; 302. First electric push rod; 303. Vertical slide rail; 4. Angle adjustment assembly; 401. Fixed plate; 402. Arc-shaped slide groove; 403. Bolt; 404. Nut; 405. Handle; 5. Support block; 6. Bridge housing support plate; 7. Lifting assembly; 701. Second electric push rod; 702. Connecting rod; 8. End limiting assembly of bridge housing; 801. Bracket; 802. Connecting rod; 803. Clamping block; 804. Hinge block; 805. Third electric push rod; 9. Bearing seat; 10. Mounting shaft; 11. Base. Detailed Implementation
[0015] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings. In the description of this invention, it should be noted that the terms "left," "right," "front," "rear," "inner," and "outer," 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 the invention and simplifying the description. They 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 the present invention.
[0016] The following is in conjunction with the appendix Figures 1-5 The present invention will be further described in terms of the embodiments and implementation methods.
[0017] The specific embodiments of this utility model are as follows: An assembly fixture for machining a bridge housing includes a base 11, on which an angle adjustment component 4 is provided. The angle adjustment component 4 is connected to a bridge housing support plate 6 for supporting the bridge housing 1. A lifting component 7 is provided on the bridge housing support plate 6. The lifting component 7 is connected to an inner hole limiting component 2. The lifting component 7 is used for lifting the inner hole limiting component 2, and the inner hole limiting component 2 is used to limit the inner hole of the bridge housing 1. The bridge shell support plate 6 is provided with upper bridge shell limiting components 3 on both sides to press down the bridge shell 1. The bridge shell support plate 6 is provided with bridge shell end limiting components 8 at both ends, which are used to limit the ends of the bridge shell 1.
[0018] The inner hole limiting assembly 2 includes a motor cavity 201, a sliding groove 202, a slider 203, a guide rod 204, a fixed plate 205, a turntable 206, and a limiting rod 207. The motor cavity 201 fixes the fixed plate 205. The fixed plate 205 has four sliding grooves 202 arranged in a cross shape. Each sliding groove 202 is fixed with a guide rod 204. Each guide rod 204 passes through the slider 203. Each slider 203 can... The sliders are slidably disposed within the corresponding grooves 202. The lower fixed vertical shaft of each slider 203 passes through the inclined grooves 2061 opened on the turntable 206. The lower fixed vertical shaft of each slider 203 matches the inclined grooves 2061. The central axis of the turntable 206 is rotatably connected to the fixed disk 205. The end of the central axis of the turntable 206 is fixedly connected to the output shaft inside the motor cavity. The lower fixed vertical shaft of the slider 203 is fixedly connected to the limiting rod 207.
[0019] In this embodiment, the motor in the motor cavity 201 of the inner hole limiting component 2 can drive the turntable 206 to rotate. The turntable 206 drives the slider 203 to rotate. Under the limitation of the inclined slide groove 2061, the slider 203 moves in the slide groove 202. The slider 203 drives the limiting rod 207 to move, so that the limiting rod 207 can move outward or close inward. When the limiting rod 207 moves outward, it can support the inner wall of the center hole of the bridge housing 1, thereby supporting the inner hole of the bridge housing 1.
[0020] The lifting assembly 7 includes a second electric push rod 701 and a connecting rod 702. The outer shell of the second electric push rod 701 fixes one end of the connecting rod 702, and the other end of the connecting rod 702 is fixedly connected to the motor cavity.
[0021] In this embodiment, the second electric push rod 701 of the lifting assembly 7 can control the lifting and lowering of the connecting rod 702, thereby realizing the lifting and lowering of the limiting rod 207, which facilitates the insertion of the limiting rod 207 into the inner hole of the bridge housing 1 and its disengagement from the inner hole of the bridge housing 1.
[0022] The upper limiting assembly 3 of the axle housing includes a pressure plate 301, a first electric push rod 302, and a vertical slide rail 303. The fixed end of the vertical slide rail 303 is fixed on the axle housing support plate 6, and the movable end of the vertical slide rail 303 is fixedly connected to the pressure plate 301. The pressure plate 301 fixes the telescopic rod of the first electric push rod 302, and the first electric push rod 302 fixes the axle housing support plate 6.
[0023] In this embodiment, the extension and retraction of the telescopic rod of the first electric push rod 302 can drive the pressure plate 301 to move. The pressure plate 301 drives the movable end of the vertical slide rail 303 to move along the fixed end, thereby realizing the pressing of the pressure plate 301 on the upper side of the bridge housing 1 and the release of the bridge housing 1.
[0024] The axle housing end limiting assembly 8 includes a bracket 801, a connecting rod 802, a clamping block 803, a hinge block 804, and a third electric push rod 805. The bracket 801 fixes the axle housing support plate 6. The bracket 801 is fixedly connected to the third electric push rod 805. The telescopic rod of the third electric push rod 805 passes through the bracket 801. The end of the telescopic rod of the third electric push rod 805 is rotatably connected to one end of the clamping block 803. The middle of both sides of the clamping block 803 is rotatably connected to the connecting rod 802. The connecting rod 802 is rotatably connected to the hinge block 804. The hinge block 804 is fixedly connected to the bracket 801. The other end of the clamping block 803 can abut against the inner wall of the axle housing 1 end to limit the axle housing 1.
[0025] In this embodiment, the extension and retraction of the telescopic rod of the third electric push rod 805 can drive the clamping block 803 to swing, the clamping block 803 drives the connecting rod 802 to swing, and the swing of the end of the clamping block 803 can clamp the end inner wall of the bridge housing 1, thereby limiting the position of the bridge housing 1.
[0026] Block 5 can support the axle housing support plate 6 (e.g.) Figure 1 (as shown in the diagram), at this time the bolt 403 is in the lower part of the arc-shaped groove 402, and the support block 5 supports the bridge housing support plate 6.
[0027] The angle adjustment assembly 4 includes a fixing plate 401, an arc-shaped slide groove 402, bolts 403, nuts 404, and handles 405. The fixing plate 401 is fixed at both ends of the base 11. The arc-shaped slide groove 402 is provided on the fixing plate 401. The bolts 403 are fixed at one end of each side of the bridge housing support plate 6. Each bolt 403 passes through the corresponding arc-shaped slide groove 402. Each bolt 403 is threaded to the nut 404. The handle 405 is fixed at the end of each bolt 403. The protrusion fixed at the lower part of the bridge housing support plate 6 is fixedly connected to the mounting shaft 10. The mounting shaft 10 is rotatably connected to the bearing seat 9. The bearing seat 9 is fixed to one side of the base 11.
[0028] In this embodiment, by loosening the nut 404, the axle housing support plate 6 can be released, and by pulling the handle 405, the axle housing support plate 6 can be moved, thereby achieving the rotation of the axle housing support plate 6. The arc-shaped slide groove 402 is set along the trajectory of the bolt 403 fixed at the end of the axle housing support plate 6. The angle of the axle housing support plate 6 is adjusted to a suitable position, and the nut 404 is tightened to achieve the locking and limiting of the axle housing support plate 6 and the fixing plate 401. A set of evenly arranged support blocks 5 are fixed on the base 11 on one side corresponding to the bolt 403. The upper side of the support block 5 is an inclined surface, and the support block 5 can support the bridge shell support plate 6.
[0029] The method of using this utility model is as follows: Place the assembly fixture on a suitable work platform, ensuring that the base 11 is stable, and hoist the bridge housing 1 to be processed onto the bridge housing support plate 6. Roughly adjust the position so that the bridge housing 1 is roughly within the range of action of each limiting component. In the initial state, the telescopic rod of the second electric push rod 701 is extended, and the limiting rod 207 does not affect the placement of the axle housing 1. The second electric push rod 701 of the lifting assembly 7 is operated to retract its telescopic rod, which drives the connecting rod 702 to descend, thereby realizing the lifting and lowering of the limiting rod 207. This ensures that the limiting rod 207 is accurately matched to the inner hole position of the axle housing 1. The motor of the inner hole limiting assembly 2 is started, and the motor drives the turntable 206 to rotate. The turntable 206 drives the slider 203 to move in the slide groove 202. Due to the limiting effect of the inclined slide groove 2061, the slider 203 drives the limiting rod 207 to move outward and support the inner wall of the center hole of the axle housing 1.
[0030] The first electric push rod 302 of the upper limit assembly 3 of the axle housing is activated, causing its telescopic rod to extend and push the pressure plate 301 to move downward along the vertical slide rail 303, pressing down on the upper side of the axle housing 1 to prevent the axle housing 1 from jumping upward during the processing.
[0031] The third electric push rod 805 of the axle housing end limiting assembly 8 is activated. Its telescopic rod extends and retracts, causing the clamping block 803 to swing. Under the synergistic action of the connecting rod 802, the end of the clamping block 803 tightly abuts against the inner wall of the axle housing 1 end, thereby limiting the end of the axle housing 1.
[0032] If the angle of the bridge housing 1 needs to be adjusted during the processing, loosen the nut 404 of the angle adjustment component 4, pull the handle 405, and move the bridge housing support plate 6 along the arc-shaped slide groove 402. After rotating to the appropriate angle, tighten the nut 404 to complete the adjustment of the angle of the bridge housing support plate 6. After the processing is completed, operate each component in the reverse order to release the limit on the bridge housing 1.
[0033] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An assembly fixture for machining bridge housings, comprising a base (11), characterized in that: An angle adjustment component (4) is provided on the base (11). The angle adjustment component (4) is connected to the bridge shell support plate (6) and is used to support the bridge shell (1). A lifting component (7) is provided on the bridge shell support plate (6). The lifting component (7) is connected to the inner hole limiting component (2). The lifting component (7) is used to lift the inner hole limiting component (2). The inner hole limiting component (2) is used to limit the inner hole of the bridge shell (1). The bridge shell support plate (6) is provided with upper bridge shell limiting components (3) on both sides to press down the bridge shell (1). The bridge shell support plate (6) is provided with bridge shell end limiting components (8) at both ends, which are used to limit the ends of the bridge shell (1).
2. The assembly fixture for machining bridge housings according to claim 1, characterized in that: The inner hole limiting assembly (2) includes a motor cavity (201), a slide groove (202), a slider (203), a guide rod (204), a fixed plate (205), a turntable (206), and a limiting rod (207). The motor cavity (201) fixes the fixed plate (205). The fixed plate (205) has four slide grooves (202) arranged in a cross shape. Each slide groove (202) is fixed with a guide rod (204). Each guide rod (204) passes through the slider (203). Each slider (204) has a limit rod (207). 03) Each slider (203) is slidably disposed in the corresponding slide groove (202). The lower fixed vertical shaft of each slider (203) passes through the inclined slide groove (2061) opened on the turntable (206). The lower fixed vertical shaft of each slider (203) matches the inclined slide groove (2061). The central axis of the turntable (206) is rotatably connected to the fixed disk (205). The end of the central axis of the turntable (206) is fixedly connected to the output shaft in the motor cavity. The lower fixed vertical shaft of the slider (203) is fixedly connected to the limiting rod (207).
3. The assembly fixture for machining bridge housings according to claim 2, characterized in that: The lifting assembly (7) includes a second electric push rod (701) and a connecting rod (702). The outer shell of the second electric push rod (701) fixes one end of the connecting rod (702), and the other end of the connecting rod (702) is fixedly connected to the motor cavity.
4. The assembly fixture for machining bridge housings according to claim 3, characterized in that: The upper limit assembly (3) of the axle housing includes a pressure plate (301), a first electric push rod (302) and a vertical slide rail (303). The fixed end of the vertical slide rail (303) is fixed on the axle housing support plate (6), and the movable end of the vertical slide rail (303) is fixedly connected to the pressure plate (301). The pressure plate (301) fixes the telescopic rod of the first electric push rod (302), and the first electric push rod (302) fixes the axle housing support plate (6).
5. The assembly fixture for machining bridge housings according to claim 3, characterized in that: The axle housing end limiting assembly (8) includes a bracket (801), a connecting rod (802), a clamping block (803), a hinge block (804), and a third electric push rod (805). The bracket (801) fixes the axle housing support plate (6). The bracket (801) is fixedly connected to the third electric push rod (805). The telescopic rod of the third electric push rod (805) passes through the bracket (801). The end of the telescopic rod of the third electric push rod (805) is rotatably connected to one end of the clamping block (803). The middle of both sides of the clamping block (803) is rotatably connected to the connecting rod (802). The connecting rod (802) is rotatably connected to the hinge block (804). The hinge block (804) is fixedly connected to the bracket (801). The other end of the clamping block (803) can abut against the inner wall of the axle housing (1) end to limit the axle housing (1).
6. The assembly fixture for machining bridge housings according to claim 5, characterized in that: The angle adjustment assembly (4) includes a fixing plate (401), an arc-shaped groove (402), a bolt (403), a nut (404), and a handle (405). The fixing plate (401) is fixed at both ends of the base (11). The arc-shaped groove (402) is provided on the fixing plate (401). The bolt (403) is fixed at one end of each side of the bridge housing support plate (6). Each bolt (403) passes through the corresponding arc-shaped groove (402). Each bolt (403) is threaded to the nut (404). The handle (405) is fixed at the end of each bolt (403). The protrusion fixed at the lower part of the bridge housing support plate (6) is fixed to the mounting shaft (10). The mounting shaft (10) is rotatably connected to the bearing seat (9). The bearing seat (9) is fixed on one side of the base (11).
7. The assembly fixture for machining bridge housings according to claim 6, characterized in that: A set of evenly arranged support blocks (5) are fixed on one side of the base (11) corresponding to the bolt (403). The upper side of the support block (5) is an inclined surface, and the support block (5) can support the bridge shell support plate (6).