A rotation positioning device for the left housing of a differential

Abstract

The invention discloses a rotation positioning device for a left housing of a differential, relates to the technical field of differential accessories processing, and aims to solve the technical problem that manual positioning and installation of the left housing is time-consuming, labor-intensive and inefficient. The key points of the technical solution are as follows: the device comprises a support frame and a workbench arranged on the support frame, the workbench is provided with a first through hole penetrating from top to bottom, a fixing table is provided on the upper surface of the workbench around the through hole, and the fixing table is provided with a second through hole penetrating the first through hole; a compression table is provided above the fixing table, and the compression table is provided with a third through hole penetrating the second through hole, and a card slot is provided on the upper surface of the compression table around the third through hole, and the lower end surface of the compression table and the upper end surface of the workbench are fixed by a compression member. The object of the invention is to provide a rotation positioning device for a left housing of a differential that is convenient, accurate and efficient in positioning.

Description

Technical Field

[0001] The invention relates to the technical field of differential machine parts processing, and more specifically, to a rotation positioning device for a left case of a differential machine. Background Art

[0002] The automobile differential is a mechanism that enables the left and right drive wheels to rotate at different speeds. It is mainly composed of left and right half-shaft gears, two planetary gears and left and right housings. Its function is to make the left and right wheels roll at different speeds when the car is turning or driving on uneven roads, that is, to ensure that the drive wheels on both sides perform pure rolling motion.

[0003] When installing the left housing of the automobile differential, certain positioning is required so that the left housing can be rotated to a predetermined equal-distance engagement angle before the next installation step can be performed. In the prior art, positioning and installation are usually performed by manpower, which is time-consuming, labor-intensive and inefficient.

[0004] Therefore, a new technical solution is urgently needed to solve the above-mentioned technical problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the object of the present invention is to provide a rotation positioning device for the left housing of a differential gear which is convenient, accurate and efficient in positioning.

[0006] The above technical objectives of the present invention are achieved through the following technical solutions: a rotation positioning device for a left housing of a differential gear, comprising a support frame and a workbench arranged on the support frame, the workbench is provided with a first through hole penetrating from top to bottom, a fixing table is arranged around the through hole on the upper end surface of the workbench, and the fixing table is provided with a second through hole penetrating to the first through hole; a compression table is arranged above the fixing table, the compression table is provided with a third through hole penetrating to the second through hole, a card slot arranged around the upper end surface of the compression table is arranged, and the lower end surface of the compression table and the upper end surface of the workbench are fixed by a compression member;

[0007] A mounting plate is fixed on the side wall of the compression table, and a sensor is mounted on the mounting plate; a sensing device is provided on the upper surface of the working table on the same side as the mounting plate;

[0008] A driving device is provided on the lower end surface of the workbench. A rotating shaft is fixed at one end of the driving device. The rotating shaft passes through the first through hole and the second through hole in sequence and is placed in the third through hole. The driving device drives the storage table to rotate by controlling the rotating shaft.

[0009] By adopting the above technical solution, when using the present invention, the user places the workpiece on the compression table. At this time, the workpiece does not touch the storage table. Under the action of gravity, the workpiece presses down on the compression table, and the compression table presses down on the compression spring. The compression table moves downward, and the lower end of the workpiece also moves downward. After the lower end of the workpiece is placed on the storage table, the displacement stops. At the same time, the sensor fixed to the side wall of the compression table through the mounting plate is detached from the sensing device. The detached sensor sends a command to the corresponding control system. After receiving the command, the control system instructs the drive device to run. The drive device controls the rotating shaft to drive the storage table to rotate. Under the action of friction, The storage table drives the workpiece to rotate. After the convex strip of the workpiece is embedded in the groove, the workpiece is successfully positioned and will no longer be driven to rotate by the storage table. At this time, the workpiece can be grabbed by the clamp for further operation. After the clamp takes the workpiece away, the external force on the compression table disappears, the compression spring is reset, and the sensor rises to the sensing device again. The sensor receives a stop signal and sends it to the control system. The control system instructs the drive device to stop running, thereby stopping the rotation of the storage table. The present invention does not require the user to perform manual positioning, the equipment is simple, and ultimately achieves the purpose of convenient and accurate positioning and efficient work of the present invention.

[0010] The present invention is further configured as follows: a compression groove matched with the upper end surface of the fixed platform is provided on the lower end surface of the compression platform, and the upper end surface of the fixed platform is embedded in the compression groove after the compression platform is pressed downward.

[0011] By adopting the above technical solution, the compression platform can wrap the compression groove to the upper end surface of the fixed platform when pressing down, thereby reducing the shaking amplitude of the compression platform when pressing down, ensuring that the present invention is more stable when used.

[0012] The present invention is further configured as follows: a plurality of partitioned fixed grooves are provided on the upper end surface of the fixed platform surrounding the second through hole, and a sliding hole is provided at the bottom of the fixed groove; the compression member comprises a compression spring and a compression tube connected to each other, one end of the compression tube is fixed to the lower end surface of the compression platform, and one end of the compression spring is fixed to the fixed groove; a limiting rod is provided in the compression tube, one end of the limiting rod is fixed to the lower end surface of the compression platform, and the other end extends into the sliding hole and is slidably connected thereto.

[0013] By adopting the above technical solution, while satisfying the basic compression function, the limit rod can help the compression spring to withstand lateral bending stress, thereby preventing the compression spring from being deformed by the lateral bending stress and further improving the service life of the compression component.

[0014] The present invention is further configured as follows: the driving device includes a driving cylinder and a rocker arm, the driving cylinder includes a telescopic end, one end of the driving cylinder is fixed to the bottom of the workbench through a fixing column, and the telescopic end is connected to a hinge block; a hinge groove is opened at one end of the hinge block, one end of the rocker arm is inserted into the hinge groove, and a fixing rod is provided on one side of the hinge block, which passes through this side of the hinge block in sequence and is inserted into the other side of the hinge block after the rocker arm; one end of the rocker arm is fixed to the rotating shaft.

[0015] By adopting the above technical solution, the hinge block and the rocker arm are set to be hinged, and the rocker arm can rotate relatively here. At the same time, the other end of the rocker arm is fixed to the rotating shaft, so that the effect of driving the telescopic end of the cylinder to rotate the telescopic rocker arm, and the rotation of the rocker arm drives the rotating shaft to rotate can be achieved. This structure is economical and simple, and only one driving cylinder and hinge connection structure are needed to achieve the rotation effect, which saves production costs for manufacturers.

[0016] The present invention is further configured as follows: the sensing device includes a Z-shaped plate and a sensing plate fixed to one end of the Z-shaped plate, a sensing groove is opened at one end of the sensing plate, the upper and lower groove walls of the sensing groove are opened, and feedback devices are arranged on the two outer groove walls.

[0017] By adopting the above technical solution, the opening of the upper groove wall of the sensing groove is set to allow the sensor to pass through when the compression platform is installed from above, and the opening of the lower groove wall of the sensing groove is set to allow the sensor to detach from the sensing groove and send a command to the control system when the compression platform is pressed down. This structure is simple and practical, and further helps producers save production costs.

[0018] The present invention is further configured as follows: a fastening tube is sleeved on the outer wall of the rotating shaft, and one end of the fastening tube is fixed to the lower end surface of the workbench.

[0019] By adopting the above technical solution, a fastening tube is provided to prevent shaking when the rotating shaft rotates, thereby better ensuring the stability of the storage table when it rotates and preventing the workpiece from being thrown off by the shaking storage table.

[0020] The present invention is further configured as follows: an annular groove is formed around the pipe opening at one end of the fastening pipe fixed to the workbench, and a bearing is embedded in the annular groove.

[0021] By adopting the above technical solution, an annular groove is provided and embedded in the bearing sleeve on the outer wall of the rotating shaft, which can further improve the working stability of the rotating shaft and effectively prevent the wear of the fastening tube, thereby increasing the service life of the fastening tube.

[0022] The present invention is further configured as follows: the support frame includes four support legs, and reinforcement rods are provided between the support legs.

[0023] The user may accidentally kick the supporting leg when using the present invention. By adopting the above technical solution and providing a reinforcement rod, the bending resistance of the supporting leg to lateral bending stress can be improved, thereby avoiding the situation where the user kicks the supporting leg off when using the present invention and increasing the service life of the support frame.

[0024] The present invention is further configured as follows: a foot plate is fixed to one end of the supporting leg.

[0025] By adopting the above technical solution, it is possible to ensure that the contact area between the support legs and the location where they are placed is larger, further improving the overall placement stability of the support frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 is a three-dimensional diagram of this embodiment;

[0027] Figure 2 It is a front view of the structure of this embodiment;

[0028] Figure 3 This is an enlarged view of the structure of the G1 part of this embodiment;

[0029] Figure 4 It is a bottom view of this embodiment;

[0030] Figure 5 Schematic diagram of the fixed groove and sliding hole structure of this embodiment;

[0031] Figure 6 This is an exploded schematic diagram of this embodiment;

[0032] Figure 7 This is an enlarged view of the structure of the G2 part of this embodiment;

[0033] Figure 8 Schematic diagram of the workpiece.

[0034] Description of the drawings: 1. Support frame; 2. Workbench; 3. First through hole; 4. Fixed table; 5. Second through hole; 6. Compression table; 7. Third through hole; 8. Slot; 9. Compression piece; 91. Compression spring; 92. Compression tube; 922. Limit rod; 10. Mounting plate; 11. Sensor; 13. Rotating shaft; 14. Storage table; 15. Compression groove; 16. Fixed groove; 17. Sliding hole; 18. Driving cylinder; 181. Telescopic end; 19. Rocker; 20. Fixed column; 21. Articulated block; 22. Articulated groove; 23. Fixed rod; 24. Z-plate; 25. Induction plate; 26. Induction groove; 27. Feedback; 28. Fastening tube; 29. ​​Annular groove; 30. Bearing; 31. Reinforcement rod; 32. Foot plate; 111. Support leg; 33. Workpiece; 34. Raised strip. DETAILED DESCRIPTION

[0035] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0036] The same parts are denoted by the same reference numerals. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the drawings, and the words "bottom" and "top", "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0037] like Figure 1As shown, a rotation positioning device for a left housing of a differential gear comprises a support frame 1 and a workbench 2 arranged on the support frame 1, wherein the workbench 2 is provided with a first through hole 3 penetrating from top to bottom, and a fixing platform 4 is provided around the through hole on the upper end surface of the workbench 2, and the fixing platform 4 is provided with a second through hole 5 penetrating to the first through hole 3; a compression platform 6 is provided above the fixing platform 4, and the compression platform 6 is provided with a third through hole 7 penetrating to the second through hole 5, and a card slot 8 arranged around the third through hole 7 is provided on the upper end surface of the compression platform 6, and a compression member 9 is used to fix the lower end surface of the compression platform 6 and the upper end surface of the workbench 2;

[0038] A mounting plate 10 is fixed to the side wall of the compression table 6, and a sensor 11 is mounted on the mounting plate 10; a sensing device is provided on the upper end surface of the workbench 2 on the same side as the mounting plate 10;

[0039] A driving device is provided on the lower end surface of the workbench. A rotating shaft 13 is fixed to one end of the driving device. The rotating shaft 13 passes through the first through hole 3 and the second through hole 5 in sequence and is placed in the third through hole 7. The rotating shaft 13 is connected to the storage table 14. The driving device drives the storage table 14 to rotate by controlling the rotating shaft 13.

[0040] By adopting the above technical solution, when using the present invention, the user places the workpiece on the compression table 6. At this time, the workpiece does not touch the storage table 14. Under the action of gravity, the workpiece presses down the compression table 6, and the compression table 6 presses down the compression spring 91, so that the compression table 6 moves downward, and the lower end of the workpiece also moves downward. After the lower end of the workpiece is placed on the storage table 14, the displacement stops, and at the same time, the sensor 11 fixed to the side wall of the compression table 6 through the mounting plate 10 is detached from the sensing device. After the detachment, the sensor 11 sends a command to the corresponding control system. After receiving the command, the control system instructs the drive device to run. The drive device controls the rotating shaft 13 to drive the storage table 14 to rotate. Under the action of friction, the storage table 14 drives the workpiece to rotate. After the convex strip of the workpiece is embedded in the slot 8, the workpiece is successfully positioned and will no longer be placed on the storage table 14. Driven to rotate, the workpiece can be grasped by the clamping claw for further operation. After the clamping claw takes the workpiece away, the external force on the compression platform 6 disappears, the compression spring 91 is reset, and the sensor 11 rises again into the sensing device. The sensor 11 receives the stop signal and sends it to the control system. The control system instructs the drive device to stop running, thereby stopping the rotation of the storage table 14. The present invention does not require the user to perform manual positioning, the equipment is simple, and finally achieves the purpose of convenient and accurate positioning and efficient work of the present invention.

[0041] The present invention is further configured as follows: a compression groove 15 adapted to the upper end surface of the fixing table 4 is provided on the lower end surface of the compression table 6 , and the upper end surface of the fixing table 4 is embedded in the compression groove 15 after the compression table 6 is pressed downward.

[0042] By adopting the above technical solution, the compression platform 6 can wrap the compression groove 15 to the upper end surface of the fixing platform 4 when pressing down, thereby reducing the shaking amplitude of the compression platform 6 when pressing down, ensuring that the present invention is more stable when used.

[0043] The present invention is further configured as follows: a plurality of spaced fixed grooves 16 are provided on the upper end surface of the fixed platform 4 around the second through hole 5, and a sliding hole 17 is provided at the bottom of the fixed groove 16; the compression member 9 includes a compression spring 91 and a compression tube 92 connected to each other, one end of the compression tube 92 is fixed to the lower end surface of the compression platform 6, and one end of the compression spring 91 is fixed to the fixed groove 16; a limiting rod 922 is provided in the compression tube 92, one end of the limiting rod 922 is fixed to the lower end surface of the compression platform 6, and the other end extends into the sliding hole 17 and is slidably connected thereto.

[0044] By adopting the above technical solution, while satisfying the basic compression function, the limiting rod 922 can help the compression spring 91 to withstand the lateral bending stress, thereby preventing the compression spring 91 from being deformed by the lateral bending stress and further improving the service life of the compression member 9.

[0045] The present invention is further configured as follows: the driving device includes a driving cylinder 18 and a rocker arm 19, the driving cylinder 18 includes a telescopic end 181, one end of the driving cylinder 18 is fixed to the bottom of the workbench 2 through a fixing column 20, and the telescopic end 181 is connected to a hinge block 21; a hinge groove 22 is opened at one end of the hinge block 21, one end of the rocker arm 19 is inserted into the hinge groove 22, one side of the hinge block 21 is provided with a fixing rod 23 which passes through this side of the hinge block 21 in sequence and is inserted into the other side of the hinge block 21 after the rocker arm 19; one end of the rocker arm 19 is fixed to the rotating shaft 13.

[0046] By adopting the above technical solution, the hinge block 21 and the rocker arm 19 are set to be hinged, and the rocker arm 19 can rotate relatively here. At the same time, the other end of the rocker arm 19 is fixed to the rotating shaft 13, so that the telescopic end 181 of the driving cylinder 18 can be used to rotate the telescopic rocker arm 19, and the rotation of the rocker arm 19 drives the rotating shaft 13 to rotate. This structure is economical and simple, and only one driving cylinder 18 and a hinge connection structure are needed to achieve the rotation effect, which saves production costs for manufacturers.

[0047] The present invention is further configured as follows: the sensing device includes a Z-shaped plate 24 and a sensing plate 25 fixed to one end of the Z-shaped plate 24, a sensing groove 26 is opened at one end of the sensing plate 25, the upper and lower groove walls of the sensing groove 26 are opened, and feedback devices 27 are provided on the two outer groove walls.

[0048] By adopting the above technical solution, the opening of the upper groove wall of the sensing groove 26 is set to allow the sensor 11 to pass when the compression platform 6 is installed from above, and the setting of the lower groove wall of the sensing groove 26 is to allow the sensor to detach from the sensing groove 26 and send a command to the control system when the compression platform 6 is pressed down. This structure is simple and practical, and further helps manufacturers save production costs.

[0049] The present invention is further configured as follows: a fastening tube 28 is sleeved on the outer wall of the rotating shaft 13 , and one end of the fastening tube 28 is fixed to the lower end surface of the workbench 2 .

[0050] By adopting the above technical solution, the fastening tube 28 is provided to prevent the shaking of the rotating shaft 13 when it rotates, thereby better ensuring the stability of the storage table 14 when it rotates and preventing the workpiece from being thrown off by the shaking storage table 14.

[0051] The present invention is further configured as follows: an annular groove 29 is formed around the pipe opening at one end of the fastening pipe 28 fixed to the workbench 2 , and a bearing 30 is embedded in the annular groove 29 .

[0052] By adopting the above technical solution, an annular groove 29 is provided and embedded in the bearing 30 on the outer wall of the shaft 13, the working stability of the shaft 13 is further improved, and the wear of the fastening tube 28 can be effectively prevented, thereby increasing the service life of the fastening tube 28.

[0053] The present invention is further configured as follows: the support frame 1 includes four support legs 111 , and reinforcement rods 31 are provided between the support legs 111 .

[0054] The user may accidentally kick the support leg 111 when using the present invention. By adopting the above technical solution and providing the reinforcement rod 31, the bending resistance of the support leg 111 to lateral bending stress can be improved, thereby preventing the user from kicking the support leg 111 off when using the present invention and increasing the service life of the support frame 1.

[0055] The present invention is further configured as follows: a foot plate 32 is fixed to one end of the supporting leg 111 .

[0056] By adopting the above technical solution, it is possible to ensure that the contact area between the support leg 111 and the location where it is placed is larger, further improving the overall placement stability of the support frame 1.

[0057] The specific embodiments are merely explanations of the present invention and are not limitations of the present invention. After reading this specification, those skilled in the art may make modifications to the embodiments without any creative contribution as needed. However, such modifications are protected by the patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A rotation positioning device for a left housing of a differential gear, comprising a support frame (1) and a workbench (2) arranged on the support frame (1), characterized in that: The workbench (2) is provided with a first through hole (3) penetrating from top to bottom; a fixing platform (4) is provided on the upper end surface of the workbench (2) around the first through hole (3); the fixing platform (4) is provided with a second through hole (5) penetrating to the first through hole (3); a compression platform (6) is provided above the fixing platform (4); the compression platform (6) is provided with a third through hole (7) penetrating to the second through hole (5); a clamping groove (8) is provided around the third through hole (7) on the upper end surface of the compression platform (6); the lower end surface of the compression platform (6) and the upper end surface of the workbench (2) are fixed by a compression member (9); The side wall of the compression table (6) is provided with a mounting plate (10) fixed thereto, and the mounting plate (10) is loaded with a sensor (11); the upper end surface of the working table (2) is provided with a sensing device on the same side as the mounting plate (10); The lower end surface of the workbench (2) is provided with a driving device, a rotating shaft (13) is fixed at one end of the driving device, the rotating shaft (13) passes through the first through hole (3) and the second through hole (5) in sequence and is then placed in the third through hole (7), and is connected to a storage platform (14), and the driving device drives the storage platform (14) to rotate by controlling the rotating shaft (13); The lower end surface of the compression platform (6) is provided with a compression groove (15) adapted to the upper end surface of the fixing platform (4); after the compression platform (6) is pressed downward, the upper end surface of the fixing platform (4) is embedded in the compression groove (15); The upper end surface of the fixing platform (4) is provided with a plurality of fixing grooves (16) surrounding the second through hole (5), and the bottom of the fixing groove (16) is provided with a sliding hole (17); the compression member (9) comprises a compression spring (91) and a compression tube (92) connected to each other, one end of the compression tube (92) is fixed to the lower end surface of the compression platform (6), and one end of the compression spring (91) is fixed to the fixing groove (16); a limiting rod (922) is provided in the compression tube (92), one end of the limiting rod (922) is fixed to the lower end surface of the compression platform (6), and the other end extends into the sliding hole (17) and is slidingly connected thereto.

2. The rotation positioning device for the left housing of a differential according to claim 1, characterized in that: The driving device comprises a driving cylinder (18) and a swing rod (19), wherein the driving cylinder (18) comprises a telescopic end (181), one end of the driving cylinder (18) is fixed to the bottom of the workbench (2) through a fixing column (20), and the telescopic end (181) is connected to a hinge block (21); one end of the hinge block (21) is provided with a hinge groove (22), one end of the swing rod (19) is inserted into the hinge groove (22), one side of the hinge block (21) is provided with a fixing rod (23) which passes through one side of the hinge block (21) in sequence and is inserted into the other side of the hinge block (21) after the swing rod (19); one end of the swing rod (19) is fixed to the rotating shaft (13).

3. The rotation positioning device for the left housing of a differential according to claim 1, characterized in that: The sensing device comprises a Z-shaped plate (24) and a sensing plate (25) fixed to one end of the Z-shaped plate (24); a sensing groove (26) is formed at one end of the sensing plate (25); the sensing groove (26) has openings at upper and lower groove walls, and feedback devices (27) are formed on two outer groove walls.

4. The rotation positioning device for the left housing of a differential according to claim 1, characterized in that: The outer wall of the rotating shaft (13) is sleeved with a fastening tube (28), and one end of the fastening tube (28) is fixed to the lower end surface of the working platform (2).

5. The rotation positioning device for the left housing of a differential according to claim 4, characterized in that: An annular groove (29) is formed around the pipe opening at one end of the fastening pipe (28) fixed to the workbench (2), and a bearing (30) is embedded in the annular groove (29).

6. The rotation positioning device for the left housing of a differential according to claim 1, characterized in that: The support frame (1) comprises four support legs (111), and reinforcement rods (31) are provided between the support legs (111).

7. The rotation positioning device for the left housing of a differential according to claim 6, characterized in that: A foot plate (32) is fixed to one end of the supporting leg (111).

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