Automatic two-point leveling device for axle housing

Abstract

The utility model relates to an automatic two-point leveling device for an axle housing, and belongs to the technical field of automobile axles. The device comprises a rack, the rack is provided with a pair of supporting seats which are vertically arranged and are spaced by a certain distance, a lifting frame is arranged between the two supporting seats, the lifting frame is provided with a pair of stand columns which are vertically arranged and are spaced by a certain distance, the distance between the two stand columns can contain an axle housing, and the top of each stand column is provided with an upward rotation driving part. The rotary top end of each rotary driving part is fixedly connected with a leveling plate, the two leveling plates can rotate in the same plane, the two stand columns are connected with the supporting bases on the corresponding sides through linear sliding rail modules respectively, the lower portion of the rack is further fixedly connected with a lifting driving part, and the telescopic end of the lifting driving part is fixedly connected with the lifting frame. And the lifting frame can integrally and vertically move relative to the rack. The axle housing correcting device can improve the positioning accuracy, meet the axle housing correcting requirement, reduce the labor intensity of workers and improve the working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile axles, in particular to an automatic two-point leveling device for an axle housing. Background Art

[0002] When finishing the intermediate reducer assembly mounting holes on the rear drive axle housings of some light trucks, the product's machined surface needs to be corrected after axial positioning to ensure it is perpendicular to the equipment's main axis. At the same time, the leveling accuracy of products of varying diameters must be guaranteed to meet the required leveling accuracy. For example, when using existing equipment with a single-cantilever, two-point rotary cylinder for positioning, while initially meeting the leveling requirements, as the rotary shaft wears, the correction repeatability becomes poor, failing to meet production requirements. Furthermore, improper pressure adjustment in the rotary cylinder can cause elastic deformation of the assembly during the leveling process, impacting machining accuracy or causing the rotary leveling mechanism to malfunction. Later, the device loses its intended function, requiring manual leveling with a spirit level, increasing both the equipment's processing time and the employee's labor intensity. Utility Model Content

[0003] In order to solve the deficiencies of the prior art, the utility model provides an automatic two-point leveling device for an axle housing, which can improve positioning accuracy, meet axle housing correction requirements, reduce employee labor intensity, and improve work efficiency.

[0004] It adopts the following technical solutions:

[0005] The cam is fixedly mounted on the support frame, and the cam is fixedly mounted on the support frame to the upper and lower ends of the cam. The cam is fixedly mounted on the support frame to the support frame, and the cam is fixedly mounted on the support frame to the support frame.

[0006] Furthermore, the linear slide rail module includes a linear slide rail and a slider, the linear slide rail is vertically fixed on the side of the column, and the slider is fixedly connected to the support seat on the corresponding side.

[0007] Furthermore, the lifting frame is a U-shaped structure, the two columns are fixed on the connecting horizontal plate, and the telescopic end of the lifting drive part is fixed on the connecting horizontal plate.

[0008] Furthermore, the frame is a U-shaped structure, the two support seats are fixed on the connecting support plate, and the fixed end of the lifting drive unit is fixed on the connecting support plate.

[0009] Furthermore, the rotation drive part is a rotation cylinder; the lifting drive part is a lifting cylinder.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] The utility model provides a linear slide module structure composed of linear slide rails and sliders, which can ensure the positioning repeatability accuracy of frequent lifting and lowering, and always ensure that the leveling plate is lifted and rotated on the same horizontal plane; at the same time, the modular linear slide module is more convenient to replace and repair when its accessories are worn;

[0012] The rack and lifting frame adopt a U-shaped structure design, combined with a linear slide module, which solves the problem of guiding accuracy and realizes the synchronous lifting and lowering of two correction points. In general, the structure of the entire device is relatively simple, with good positioning accuracy and high reliability, which reduces the labor intensity of employees. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of an automatic two-point leveling device for an axle housing in an embodiment of the utility model;

[0014] Figure 2 yes Figure 1 Schematic diagram of the mid-lateral structure;

[0015] Figure 3 The utility model is a schematic diagram of an automatic two-point leveling device for an axle housing in an embodiment of the present invention.

[0016] Explanation of the accompanying drawings: 100, frame; 101, support base; 102, connecting support plate; 200, lifting frame; 201, column; 202, connecting cross plate; 300, rotation drive unit; 400, leveling plate; 500, linear slide module; 501, linear slide; 502, slider; 600, lifting drive unit. DETAILED DESCRIPTION

[0017] In order to make the present invention more clear, the following further describes an automatic two-point leveling device for an axle housing of the present invention in conjunction with the accompanying drawings. The specific embodiments described here are only used to explain the present invention and are not used to limit the present invention.

[0018] like Figure 1As shown, an automatic two-point leveling device for an axle housing comprises a rigid frame 100. The frame 100 is generally U-shaped and has a pair of vertically spaced support bases 101. The support bases 101 are triangular bodies with a vertical surface. The vertical surfaces of the two support bases 101 are opposite and parallel to each other and are fixedly connected to a connecting support plate 102 by screws. The frame 100 has a high overall rigidity, which can meet the deformation requirements during operation.

[0019] A rigid lifting frame 200 is provided between the two support bases 101. The lifting frame 200 also has an overall U-shaped structure and comprises a pair of vertically spaced columns 201. The columns 201 can be made of a relatively rigid metal profile, such as a rectangular tube. The two columns 201 are fixedly connected to a connecting cross plate 202 by screws or welding. The spacing between the two columns 201 accommodates the axle housing without interfering with it. Each column 201 is provided with an upwardly facing rotation drive unit 300 at the top. The rotating top end of each rotation drive unit 300 is fixedly connected to a leveling plate 400. The two leveling plates 400 are at the same height, and their bottom end surfaces, serving as a leveling reference, have good wear resistance. Driven by the corresponding rotation drive unit 300, the two leveling plates 400 can rotate within the same plane.

[0020] The outer sides of the two columns 201 are connected to the support base 101 on the corresponding side through linear slide rail modules 500. The movement direction of the linear slide rail modules 500 is vertical. In this way, under the action of the linear slide rail modules 500 on both sides, the lifting frame 200 can have a precise vertical movement path relative to the frame 100.

[0021] A lifting drive unit 600 is also fixedly connected to the lower portion of the frame 100. The telescopic end of the lifting drive unit 600 is fixedly connected to the bottom of the lifting frame 200. The lifting drive unit 600 serves as a driving source, and when in operation, it can move the lifting frame 200 vertically relative to the frame 100. In this embodiment, the fixed end of the lifting drive unit 600 is connected to the middle of the connecting support plate 102, and the lifting end is fixedly connected to the middle of the connecting cross plate 202, providing a relatively stable push and pull force for the lifting frame 200.

[0022] Preferably, considering the accuracy of movement, durability of use, and ease of accessory replacement, the linear guide rail module 500 includes a precision linear guide rail 501 and a slider 502. As shown in the figure, the linear guide rail 501 is vertically fixed to the outer surface of the column 201 by a set of screws, and the slider 502 is fixedly connected to the corresponding side of the support base 101 by a set of screws. Of course, the corresponding fixed components of the linear guide rail 501 and the slider 502 can also be interchangeable. For example, the linear guide rail 501 is vertically fixed to the vertical surface of the support base 101, and the slider 502 is fixedly connected to the outer surface of the column 201 on the corresponding side.

[0023] Furthermore, this device is used in the axle housing leveling process, which places certain demands on production cycle and operating speed. Therefore, the rotary drive unit 300 is preferably a rotary cylinder, and the lifting drive unit 600 is preferably a lifting cylinder. As a power source, the cylinder has a relatively fast operating cycle and can meet the power requirements for the axle housing leveling process. Of course, the maximum lifting force of the lifting cylinder is selected to be less than the product's anti-bending deformation force, thereby preventing product deformation during the leveling process from affecting processing quality requirements. Furthermore, both the rotary cylinder and the lifting cylinder are controlled by a control module to perform their corresponding actions, and this control structure, as conventional technology, will not be described here.

[0024] The working process of this device:

[0025] Combine Figure 3 As shown, after workpieces (axle housings) of varying specifications within the design range are hoisted into this device, they are elevated at both ends with equal-height clamps (e.g., V-shaped irons) to leave the center of the axle housing suspended. Pressing the device's power button activates the lift cylinders through a built-in program. Once raised to their proper position, the control module sends a signal to the control module, which controls the rotation cylinders. Two leveling plates 400 rise with the lift cylinders' rods and synchronously rotate 90 degrees to the leveling position (directly above the axle housing's upper machining surface). This in-position signal is then sent to the control module, which in turn controls the lift cylinders to lower them. The leveling plates 400 then descend with the lift cylinders to contact the workpiece. (Because the lower surfaces of the leveling plates are parallel to the axle housing's upper machining surface and perpendicular to its main axis, reliable leveling is ensured.) The workpiece is then leveled with pressure calibration equipment. Once leveling is complete, the workpiece is clamped. Simultaneously, the lift cylinders raise again, and the rotation cylinder rod rotates 90 degrees in the opposite direction before returning to its proper position. Upon returning to its proper position, a signal is sent to the control module, which controls the lift cylinders to return, completing the product leveling.

[0026] During the above-mentioned use, the linear slide module 500 structure composed of the linear slide 501 and the slider 502 can ensure the positioning repeatability accuracy of frequent lifting and lowering, and the matching parts can be easily replaced and repaired when worn; the frame 100 adopts a U-shaped structure design, which is combined with the linear slide module 500 to solve the guiding accuracy problem and realize the synchronous lifting and lowering of the two correction points. Overall, the device structure is relatively simple and the reliability is high.

[0027] The above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention and are not intended to limit the manner in which the present invention may be implemented. Those skilled in the art will readily appreciate that other variations or modifications based on the above description are possible. It is not necessary and impossible to provide an exhaustive list of all possible embodiments. However, any obvious variations or modifications arising from the essential spirit of the present invention remain within the scope of protection of the present invention.

Claims

1. An automatic two-point leveling device for an axle housing, comprising a frame (100), characterized in that: The frame (100) has a pair of support seats (101) arranged vertically and spaced apart from each other. A lifting frame (200) is provided between the two support seats (101). The lifting frame (200) has a pair of vertical columns (201) arranged vertically and spaced apart from each other. The distance between the two columns (201) can accommodate the axle housing. The top of each column (201) is provided with an upward rotating drive unit (300). The rotating top of each rotating drive unit (300) is fixedly connected to a leveling plate. (400), the two calibration plates (400) can rotate in the same plane, the two columns (201) are respectively connected to the support base (101) on the corresponding side through the linear slide rail module (500), and a lifting drive unit (600) is fixedly connected to the lower part of the frame (100), and the telescopic end of the lifting drive unit (600) is fixedly connected to the lifting frame (200). When the lifting drive unit (600) is working, the lifting frame (200) can be moved vertically as a whole relative to the frame (100).

2. The automatic two-point leveling device for axle housing according to claim 1, characterized in that: The linear slide rail module (500) comprises a linear slide rail (501) and a slider (502), wherein the linear slide rail (501) is vertically fixed on the side of the column (201), and the slider (502) is fixedly connected to the support seat (101) on the corresponding side.

3. The automatic two-point leveling device for an axle housing according to claim 2, characterized in that: The lifting frame (200) is a U-shaped structure, the two upright posts (201) are fixed on the connecting transverse plate (202), and the telescopic end of the lifting drive unit (600) is fixed on the connecting transverse plate (202).

4. The automatic two-point leveling device for an axle housing according to claim 3, characterized in that: The frame (100) is a U-shaped structure, the two support seats (101) are fixed on the connecting support plate (102), and the fixed end of the lifting drive unit (600) is fixed on the connecting support plate (102).

5. The automatic two-point leveling device for axle housing according to claim 1 or 4, characterized in that: The rotary drive unit (300) is a rotary cylinder; the lifting drive unit (600) is a lifting cylinder.

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