A cross shaft machining device for an inter-axle differential

Abstract

The utility model discloses a kind of interaxle differential cross shaft processing device, it is related to mechanical manufacturing technical field, including bottom plate;Bottom plate is connected with mounting bracket, the end of mounting bracket away from bottom plate is connected with top plate, alloy turning tool is connected on the two side walls of mounting bracket.This utility model differential body is placed between partition plate, its processing shaft is embedded in limiting groove, ensure that axial position is accurate, the spacing of partition plate is fixed or different size partition plate is replaced by rotating screw, the spacing of partition plate is adjusted or different size partition plate is replaced by rotating screw, it can be adapted to multiple differential models, alloy turning tool of mounting bracket side wall is symmetrically arranged, its cutting edge angle is acute angle, ensure efficient cutting, by processing shaft embedding in limiting groove, ensure that differential body is placed between partition plate when axial position is accurate, help to improve the installation accuracy and performance of differential.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to a cross shaft machining device for inter-shaft differentials. Background Technology

[0002] The inter-axle differential cross shaft is a key component in the automotive transmission system. The cross shaft is responsible for transmitting the torque output by the engine to the wheels, ensuring that the wheels can obtain the necessary power. When the vehicle is turning or driving on uneven roads, the cross shaft allows the left and right wheels to rotate at different speeds. When the vehicle is turning, the inner and outer wheels travel different distances. The cross shaft, through its internal planetary gears and gear mechanism, slows down the speed of the inner wheel and increases the speed of the outer wheel to maintain the smooth driving of the vehicle.

[0003] Chinese Patent Publication No. CN222944640U, entitled "A Cross Shaft Machining Equipment," includes a worktable with a gripper assembly movably fixed to one side of the worktable for clamping the cross shaft. The gripper assembly is driven to rotate by a motor assembly. This invention utilizes a push rod to support the end of the cross shaft facing away from the gripper assembly. The center of the push rod and the gripper assembly are aligned on the same axis, ensuring that the cross shaft does not shift during rotation, thus preventing interference with the machining process. This fixing method significantly reduces the difficulty of fixing the cross shaft during machining, allowing for faster fixing and thus improving production efficiency.

[0004] The shortcomings of the above solution are: relying solely on a single-end gripper assembly and push rod support, the push rod side is prone to slight swaying due to cutting force when the cross shaft is rotating at high speed, affecting machining accuracy. The vertical position of the push rod is adjusted manually by toothed engagement, requiring repeated trial and error to align the center axis, which affects production efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a machining device for the cross shaft of an inter-shaft differential, in order to solve the technical problems in the prior art where the push rod side is prone to slight oscillation due to cutting force when the cross shaft is being cut at high speed, which affects the machining accuracy, and the vertical position of the push rod is adjusted by manual tooth groove engagement, which requires repeated trial and error to align the center axis, thus affecting production efficiency.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A machining device for an inter-shaft differential cross shaft includes a base plate;

[0008] A mounting bracket is connected to the base plate, and a top plate is connected to the end of the mounting bracket away from the base plate. Carbide turning tools are connected to both side walls of the mounting bracket. A bracket is connected to the base plate, and multiple partition plates are detachably connected to the bracket. A limit groove is left between adjacent partition plates. A differential body is placed inside the partition plate, and a machining shaft is connected to the differential body. The machining shaft is set in the limit groove, and the carbide turning tool is configured to cooperate with the machining shaft.

[0009] A rotation adjustment mechanism is connected between the differential body and the top plate. The rotation adjustment mechanism includes a rotating disk and an electric telescopic rod. The electric telescopic rod is fixedly connected to the top plate. A suction cup is connected to the telescopic end of the electric telescopic rod. A through hole is opened on the rotating disk, and the through hole is configured to cooperate with the electric telescopic rod. Two rotating rods are fixedly connected to the rotating disk. A connecting rod is connected to the end of the rotating rod away from the rotating disk. A rotating motor is fixedly connected to the top plate. Both connecting rods are connected to the rotating motor. A rotating groove is provided on the top plate, and the rotating rod is rotatably disposed in the rotating groove.

[0010] As a further embodiment of this utility model, a reinforcing rib is provided between the bracket and the base plate.

[0011] As a further embodiment of this utility model: the number of partition plates is four, and the width of the limiting groove between adjacent partition plates matches the diameter of the processing shaft.

[0012] As a further embodiment of this utility model: a screw is connected between the partition plate and the bracket, and a thrust bearing is rotatably connected between the screw and the partition plate. The thrust bearing is a planar thrust ball bearing, and its seat ring is fixedly connected to the partition plate, and the shaft ring is interference-fitted with the screw.

[0013] As a further aspect of this invention: the cutting edge angle of the alloy lathe tool is an acute angle, and they are symmetrically distributed on both sides of the machining axis.

[0014] As a further embodiment of this utility model: the telescopic end of the electric telescopic rod is also provided with a pressure sensor for detecting the clamping force of the suction cup, and the suction cup is configured to cooperate with the differential body.

[0015] As a further embodiment of this utility model: the suction cup is an electromagnetic suction cup, the adsorption surface of which covers the end face of the differential body, and multiple snap-fit ​​blocks are fixedly connected to the side of the suction cup, and the rotating disk is disposed on the outer periphery of the electric telescopic rod.

[0016] As a further embodiment of this utility model: the rotating disk is provided with a snap-fit ​​groove, the snap-fit ​​block is configured to cooperate with the snap-fit ​​groove, and the mating surface of the snap-fit ​​block and the snap-fit ​​groove is trapezoidal to prevent disengagement during rotation.

[0017] As a further embodiment of this utility model: the rotating motor is a servo motor, and its output shaft is rigidly connected to the connecting rod through a coupling.

[0018] As a further embodiment of this utility model: the rotating groove is an arc-shaped groove with a central angle of ninety degrees, which limits the swing range of the rotating rod.

[0019] The beneficial effects of this utility model are:

[0020] 1. The differential body of this utility model is placed between the partition plates, and its machining shaft is embedded in the limiting groove to ensure accurate axial position. The spacing of the partition plates is fixed by rotating the screw, or different sizes of partition plates can be replaced. The spacing of the partition plates can be adjusted by rotating the screw or replacing different sizes of partition plates, which can be adapted to various differential models. The alloy turning tools on the side wall of the mounting bracket are symmetrically arranged, and their cutting edge angle is acute to ensure efficient cutting. The machining shaft is embedded in the limiting groove to ensure accurate axial position of the differential body when placed between the partition plates, which helps to improve the installation accuracy and performance of the differential.

[0021] 2. This utility model features a rotating motor that starts and drives a connecting rod via a coupling, causing the rotating rod to swing within an arc-shaped rotating groove. The rotating rod pushes the rotating disk to rotate, which in turn drives the chuck and differential body to rotate via a locking block. When the differential rotates 90 degrees, the machining shaft moves accordingly, and the electric telescopic rod pushes the chuck downwards. The alloy turning tools on both sides simultaneously machine the journal. After the differential rotates to its position, the turning tools on both sides simultaneously machine the journal, shortening the machining time and ensuring symmetry, making it suitable for mass production. Attached Figure Description

[0022] The present invention will be further described below with reference to the accompanying drawings.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the main structure of this utility model;

[0025] Figure 3 This is a top view of the structure of this utility model.

[0026] In the diagram: 1. Base plate; 2. Mounting bracket; 3. Top plate; 4. Carbide turning tool; 5. Bracket; 6. Machining shaft; 7. Partition plate; 8. Screw; 9. Thrust bearing; 10. Suction cup; 11. Clip block; 12. Rotating disk; 13. Electric telescopic rod; 14. Rotating rod; 15. Rotating motor; 16. Rotating groove; 17. Connecting rod. Detailed Implementation

[0027] 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.

[0028] like Figures 1-3 As shown, a cross shaft machining device for an inter-shaft differential includes a base plate 1, a mounting bracket 2 connected to the base plate 1, a top plate 3 connected to the end of the mounting bracket 2 away from the base plate 1, alloy turning tools 4 connected to both side walls of the mounting bracket 2, a bracket 5 connected to the base plate 1, a reinforcing rib provided between the bracket 5 and the base plate 1, multiple partition plates 7 detachably connected to the bracket 5, a limiting groove provided between adjacent partition plates 7, four partition plates 7 in total, the width of the limiting groove between adjacent partition plates 7 matching the diameter of the machining shaft 6, a screw 8 connected between the partition plate 7 and the bracket 5, a thrust bearing 9 rotatably connected between the screw 8 and the partition plate 7, the thrust bearing 9 being a planar thrust ball bearing, its seat ring being fixedly connected to the partition plate 7, and the shaft ring being interference-fitted with the screw 8;

[0029] The differential body is placed inside the partition plate 7. A machining shaft 6 is connected to the differential body. The machining shaft 6 is set in a limiting groove. The alloy turning tool 4 is configured to cooperate with the machining shaft 6. The cutting edge angle of the alloy turning tool 4 is an acute angle and is symmetrically distributed on both sides of the machining shaft 6.

[0030] A rotation adjustment mechanism is connected between the differential body and the top plate 3. The rotation adjustment mechanism includes a rotating disk 12 and an electric telescopic rod 13. The electric telescopic rod 13 is fixedly connected to the top plate 3. A suction cup 10 is connected to the telescopic end of the electric telescopic rod 13. A pressure sensor is also provided at the telescopic end of the electric telescopic rod 13 to detect the clamping force of the suction cup 10. The suction cup 10 is an electromagnetic suction cup, and its adsorption surface covers the end face of the differential body. Multiple locking blocks 11 are fixedly connected to the side of the suction cup 10. The rotating disk 12 is located on the outer periphery of the electric telescopic rod 13. A through hole is formed on the rotating disk 12, and the through hole is configured to cooperate with the electric telescopic rod 13. The disk 12 is provided with a snap-fit ​​groove, and the snap-fit ​​block 11 is configured to cooperate with the snap-fit ​​groove. The mating surface of the snap-fit ​​block 11 and the snap-fit ​​groove is trapezoidal to prevent disengagement during rotation. Two rotating rods 14 are fixedly connected to the rotating disk 12. The end of the rotating rod 14 away from the rotating disk 12 is connected to a connecting rod 17. A rotating motor 15 is fixedly connected to the top plate 3. Both connecting rods 17 are connected to the rotating motor 15. The rotating motor 15 is a servo motor, and its output shaft is rigidly connected to the connecting rod 17 through a coupling. A rotating groove 16 is provided on the top plate 3. The rotating rod 14 is rotatably disposed in the rotating groove 16. The rotating groove 16 is an arc-shaped groove with a central angle of ninety degrees to limit the swing range of the rotating rod 14.

[0031] The working principle of this utility model is as follows: The differential body is placed between the partition plates 7, and its machining shaft 6 is embedded in the limiting groove to ensure accurate axial position. The spacing of the partition plates 7 is fixed by rotating the screw 8 or different sizes of partition plates 7 are replaced. The spacing of the partition plates 7 can be adjusted by rotating the screw 8 or different sizes of partition plates 7 are replaced, which can be adapted to various differential models and reduce equipment replacement costs. The thrust bearing 9 reduces the friction when the screw 8 rotates, making the adjustment smoother. The reinforcing rib between the bracket 5 and the base plate 1 enhances the overall rigidity and prevents machining vibration. The electric telescopic rod 13 extends downward and drives the suction cup 10 to press against the upper end face of the differential body to ensure a firm fixation. The pressure sensor monitors the clamping force in real time to prevent overload or poor suction. The trapezoidal snap-fit ​​block 11 on the side of the suction cup 10 is embedded in the snap-fit ​​groove of the rotating disk 12 to realize the linkage between the suction cup 10 and the rotating disk 12. The alloy turning tools 4 on the side wall of the mounting bracket 2 are symmetrically arranged, and their cutting edge angle is an acute angle to ensure efficient cutting.

[0032] The rotating motor 15 starts and drives the connecting rod 17 through the coupling, causing the rotating rod 14 to swing in the arc-shaped rotating groove 16. The rotating rod 14 pushes the rotating disk 12 to rotate, which in turn drives the suction cup 10 and the differential body to rotate through the snap-fit ​​block 11. When the differential rotates 90 degrees, the machining shaft 6 moves accordingly, and the electric telescopic rod 13 pushes the suction cup 10 down. The alloy turning tools 4 on both sides simultaneously perform turning on the journal. After the differential rotates to the position, the turning tools on both sides simultaneously process the journal, shortening the working time and ensuring symmetry, which is suitable for mass production.

[0033] The above description details one embodiment of the present utility model, but it is merely a preferred embodiment and should not be construed as limiting the scope of the present utility model. All equivalent variations and improvements made within the scope of the present utility model application should still fall within the patent coverage of the present utility model.

Claims

1. A machining device for an inter-shaft differential cross shaft, comprising a base plate (1); characterized in that: A mounting bracket (2) is connected to the base plate (1). A top plate (3) is connected to one end of the mounting bracket (2) away from the base plate (1). Alloy turning tools (4) are connected to both side walls of the mounting bracket (2). A bracket (5) is connected to the base plate (1). Multiple partition plates (7) are detachably connected to the bracket (5). A limiting groove is left between adjacent partition plates (7). A differential body is placed inside the partition plate (7). A machining shaft (6) is connected to the differential body. The machining shaft (6) is set in the limiting groove. The alloy turning tool (4) is matched with the machining shaft (6). A rotation adjustment mechanism is connected between the differential body and the top plate (3). The rotation adjustment mechanism includes a rotating disk (12) and an electric telescopic rod (13). The electric telescopic rod (13) is fixedly connected to the top plate (3). A suction cup (10) is connected to the telescopic end of the electric telescopic rod (13). A through hole is provided on the rotating disk (12). The through hole is configured to cooperate with the electric telescopic rod (13). Two rotating rods (14) are fixedly connected to the rotating disk (12). A connecting rod (17) is connected to the end of the rotating rod (14) away from the rotating disk (12). A rotating motor (15) is fixedly connected to the top plate (3). Both connecting rods (17) are connected to the rotating motor (15). A rotating groove (16) is provided on the top plate (3). The rotating rod (14) is rotatably disposed in the rotating groove (16).

2. The machining device for an inter-shaft differential cross shaft according to claim 1, characterized in that, The bracket (5) and the base plate (1) are provided with reinforcing ribs.

3. The machining device for an inter-shaft differential cross shaft according to claim 1, characterized in that, The number of the partition plates (7) is four, and the width of the limiting groove between adjacent partition plates (7) matches the diameter of the machining shaft (6).

4. The machining device for an inter-shaft differential cross shaft according to claim 1, characterized in that, A screw (8) is connected between the partition plate (7) and the bracket (5). A thrust bearing (9) is rotatably connected between the screw (8) and the partition plate (7). The thrust bearing (9) is a planar thrust ball bearing, and its seat ring is fixedly connected to the partition plate (7). The shaft ring is interference-fitted with the screw (8).

5. The machining device for an inter-shaft differential cross shaft according to claim 1, characterized in that, The cutting edge angle of the alloy lathe tool (4) is acute and is symmetrically distributed on both sides of the machining axis (6).

6. The machining device for an inter-shaft differential cross shaft according to claim 1, characterized in that, The telescopic end of the electric telescopic rod (13) is also equipped with a pressure sensor to detect the clamping force of the suction cup (10), which is configured to cooperate with the differential body.

7. The machining device for an inter-shaft differential cross shaft according to claim 1, characterized in that, The suction cup (10) is an electromagnetic suction cup, whose adsorption surface covers the end face of the differential body. Multiple snap-fit ​​blocks (11) are fixedly connected to the side of the suction cup (10), and the rotating disk (12) is set on the outer periphery of the electric telescopic rod (13).

8. The machining device for an inter-shaft differential cross shaft according to claim 7, characterized in that, The rotating disk (12) is provided with a snap-fit ​​groove, and the snap-fit ​​block (11) is configured to cooperate with the snap-fit ​​groove. The mating surface of the snap-fit ​​block (11) and the snap-fit ​​groove is trapezoidal to prevent them from disengaging during rotation.

9. The machining device for an inter-shaft differential cross shaft according to claim 1, characterized in that, The rotating motor (15) is a servo motor, and its output shaft is rigidly connected to the connecting rod (17) through a coupling.

10. The machining device for an inter-shaft differential cross shaft according to claim 1, characterized in that, The rotating groove (16) is an arc-shaped groove with a central angle of 90 degrees, which limits the swing range of the rotating rod (14).

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