Box closing device for automobile main speed reducer shell

Abstract

The utility model discloses an automobile main speed reducer shell closing device, and belongs to the technical field of assembly equipment. The clamping device is characterized in that the clamping device comprises a main frame, a first clamping mechanism which translates in a reciprocating mode and clamps a rear shell (16) is arranged in the main frame, a second clamping mechanism used for clamping and lifting a front shell (17) is further arranged in the main frame, and the second clamping mechanism is arranged in the direction perpendicular to the translation direction of the first clamping mechanism. According to the box closing device for the automobile main speed reducer shell, the first clamping mechanism and the second clamping mechanism are arranged, the front shell is clamped and lifted while the rear shell is clamped, and finally box closing operation of the automobile main speed reducer shell is achieved. Buffering parts are arranged on all contact points or contact surfaces of the parts in contact with the front shell or the rear shell, so that the shell is prevented from being damaged in the box closing operation. And a swing lifting mechanism is further arranged, so that the rear shell is lifted before being clamped.

Description

TECHNICAL FIELD

[0001] The application relates to an automobile main reducer shell assembling device. BACKGROUND

[0002] The main reducer is a main transmission component of an automobile, and basic functions of the main reducer are to increase torque from a transmission or a universal transmission device and to realize differential rotation of wheels through a differential mechanism in the main reducer. The main reducer is composed of a shell, the differential mechanism and one or more pairs of reduction gear pairs arranged in the shell. The shell of the main reducer is generally composed of a front shell and a rear shell in abutment. When the main reducer is assembled, the reduction gears, bearings and bearing adjusting shims and the like are first assembled in the front shell, then the front shell is sent to a rear shell assembling position in a subsequent process under the driving of a conveying device, and finally the rear shell is abutted with the front shell to complete the assembling of the main reducer.

[0003] In the traditional technology, the final assembling step of the main reducer is mainly completed by manual operation. However, the distance between the adjusting shims of the two differential bearing in the front shell of the main reducer and the distance between the two positioning surfaces of the rear shell body are in transition fit, and the gap is very small or even no gap. Therefore, it is difficult to manually assemble the rear shell with the front shell. In order to reduce the operation difficulty of manual assembling, some schemes for assisting manual semi-automatic or automatic assembling of the main reducer have appeared on the market, such as the technical scheme disclosed in the Chinese Utility Model Patent with the application number 202122761800.3 and the application date of November 12, 2021 and the technical scheme disclosed in the Chinese Utility Model Patent with the application number 202122761800.3 and the application date of November 12, 2021. The applicant of the present application hopes to design a new technical scheme to realize the assembling operation of the main reducer. CONTENT OF THE UTILITY MODEL

[0004] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide an automobile main reducer shell assembling device which can clamp the front shell and lift the front shell while clamping the rear shell, so as to realize the assembling operation of the automobile main reducer shell.

[0005] The technical scheme adopted by the utility model to solve the technical problem is that the automobile main reducer shell assembling device is characterized by comprising a main frame, a first clamping mechanism arranged in the main frame and capable of reciprocating and translating to clamp the rear shell, and a second clamping mechanism arranged in the main frame and capable of clamping and lifting the front shell, wherein the second clamping mechanism is arranged perpendicular to the translation direction of the first clamping mechanism.

[0006] Preferably, the first clamping mechanism includes a movable frame that translates within the main frame, and a translation cylinder mounted on the main frame for driving the movable frame to translate.

[0007] Preferably, the first clamping mechanism further includes a movable clamping block and a fixed clamping block that move relative to each other. The movable clamping block is mounted on the surface of the movable frame, and the fixed clamping block is fixed to the inside of the main frame.

[0008] Preferably, the main frame includes two guide shafts arranged side by side, which pass through the two sides of the movable frame respectively.

[0009] Preferably, the second clamping mechanism includes two clamping cylinders arranged along a translational direction perpendicular to the first clamping mechanism. The two clamping cylinders are arranged opposite each other on both sides of the main frame, with the piston rods of the two clamping cylinders pointing vertically downwards. A swing rod is fixed to the end of the piston rod of each of the two clamping cylinders.

[0010] Preferably, the clamping cylinder is a rotary clamping cylinder.

[0011] Preferably, the second clamping mechanism is located at one end of the translational stroke of the first clamping mechanism, and a swing lifting mechanism for lifting the front shell is also provided at the other end of the translational stroke of the first clamping mechanism.

[0012] Preferably, the swing lifting mechanism includes a swing cylinder and a swing shaft mounted on the piston rod of the swing cylinder, and a set of swing brackets for lifting the front shell are fixed side by side on the surface of the swing shaft.

[0013] Preferably, a set of swing brackets is fixed relatively within the main frame, the swing shaft is rotatably installed in the swing brackets on both sides, and the swing cylinder is fixed at one of the swing brackets.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this automotive main reducer housing closing device, by setting a first clamping mechanism and a second clamping mechanism, the front housing is clamped and lifted while the rear housing is clamped, thus realizing the closing operation of the automotive main reducer housing.

[0016] The main reducer housing closing device of this vehicle is also equipped with a swing lifting mechanism to lift the rear housing before clamping it.

[0017] All contact points or contact surfaces of components that come into contact with the front or rear shell are equipped with cushioning components to prevent damage to the outer shell during the closing operation. Attached Figure Description

[0018] Figure 1 This is an isometric drawing of the main reducer housing assembly of an automobile.

[0019] Figure 2 This is a front view of the main reducer housing assembly of an automobile.

[0020] Figure 3 for Figure 2 The right view.

[0021] Figure 4 for Figure 2 Top view.

[0022] Figure 5 for Figure 2 A bottom view.

[0023] Figure 6 This is a schematic diagram showing the working state of the main reducer housing assembly of an automobile.

[0024] The components are: 1. Clamping cylinder; 2. Moving frame; 3. Rear fixed plate; 4. Moving clamping block; 5. Mounting hole; 6. Fixed frame; 7. Swing bracket; 8. Guide shaft; 9. Fixed clamping block; 10. Swing rod; 11. Front fixed plate; 12. Swing cylinder; 13. Translation cylinder; 14. Swing bracket; 15. Swing shaft; 16. Rear shell; 17. Front shell. Detailed Implementation

[0025] Figures 1-6 This is the preferred embodiment of the present invention, which is described below in conjunction with the appendix. Figures 1-6 The present invention will be further described below.

[0026] like Figures 1-2 As shown, a car main reducer housing assembly device (hereinafter referred to as the assembly device) includes a main frame, the main frame including two fixed plates spaced apart: a front fixed plate 11 and a rear fixed plate 3, the front fixed plate 11 and the rear fixed plate 3 are arranged opposite to each other, and are connected and fixed on both sides between the front fixed plate 11 and the rear fixed plate 3 by a guide shaft 8.

[0027] A movable frame 2 is provided between the front fixed plate 11 and the rear fixed plate 3. Both ends of the movable frame 2 extend to the guide shafts 8 on both sides, and the guide shafts 8 on both sides pass through the movable frame 2. A fixing clamping block 9 is fixed on the end face of the front fixed plate 11 facing the movable frame 2, and a movable clamping block 4 is fixed on the end face of the movable frame 2 facing the front fixed plate 11. The fixing clamping block 9 and the movable clamping block 4 are arranged opposite to each other.

[0028] A fixing bracket 6 is fixed to the middle of each of the two guide shafts 8, and the two fixing brackets 6 are arranged opposite to each other. A clamping cylinder 1 is also fixed to the inner side of each of the two fixing brackets 6. The clamping cylinder 1 is implemented by a rotary clamping cylinder known in the art, so the piston rod of the two clamping cylinders 1 can perform both lifting and swinging actions. The piston rods of the two clamping cylinders 1 are both vertically downward, and a swing rod 10 is provided at the end of the piston rod of the two clamping cylinders 1 respectively. The swing rods 10 on both sides are symmetrically arranged with respect to the center line of this box-closing device.

[0029] A mounting hole 5 is provided in the middle of the rear fixed plate 3. A translation cylinder 13 is installed on the back side of the rear fixed plate 3. The piston rod of the translation cylinder 13 passes through the mounting hole 5 and is fixed on the back side of the moving frame 2. When the piston rod of the translation cylinder 13 outputs or resets, it drives the moving frame 2 to reciprocate between the front fixed plate 11 and the rear fixed plate 3. At this time, the guide shafts 8 on both sides simultaneously guide the moving frame 2.

[0030] Further integration Figures 3-5 A swing bracket 14 is fixed on the end face of the rear fixed plate 3 facing the front fixed plate 11. Two swing brackets 14 are spaced apart, and the front end of the swing bracket 14 extends horizontally to the front fixed plate 11. A swing shaft 15 is rotatably mounted between the two swing brackets 14. A swing cylinder 12 is fixed to the front side of one of the swing brackets 14, and the piston rod of the swing cylinder 12 is coaxially fixed with the swing shaft 15. Two swing brackets 7 are also fixed at intervals on the surface of the swing shaft 15. When the swing cylinder 12 is activated, it drives the swing shaft 15 to rotate, and at the same time, the two swing brackets 7 swing around the swing shaft 15.

[0031] The specific working process and working principle are as follows:

[0032] Combination Figure 6 After the front housing 17 has completed the installation of its internal reduction gear, differential, bearings, and bearing adjusting shims in the previous process, it moves to the lower part of this assembly device under the drive of the conveying device. The operator first controls the swing cylinder 12 to operate. After the swing cylinder 12 operates, the operator manually places the rear housing 16 on the surface of the swing brackets 7 on both sides.

[0033] Then, the operator controls the translation cylinder 13 to move. After the piston rod of the translation cylinder 13 outputs, it drives the moving frame 2 to move forward to the fixed plate 11. At this time, the moving clamping block 4 gradually approaches the fixed clamping block 9. When the piston rod of the translation cylinder 13 outputs to its maximum stroke, the fixed clamping block 9 and the moving clamping block 4 clamp the rear shell 16 from the front and rear sides. After the fixed clamping block 9 and the moving clamping block 4 clamp the rear shell 16, the rear shell 16 is temporarily deformed to the left and right sides. The length of the left and right ends of the rear shell 16 is greater than the distance between the outer sides of the left and right bearing adjusting shims on the front shell 17, thus providing more installation space and making subsequent pressing easier. Then, the operator first controls the swing cylinder 12 to reset, and the swing brackets 7 on both sides return to the vertical state.

[0034] Throughout the container closing operation, the container closing device remains suspended in the air under the pull of the hoisting equipment. Therefore, the container closing device can achieve overall lifting and lowering, and after the lifting is completed, it can have a certain amount of swing slack within the plane range. After the container closing device is moved to directly above the front shell 17 by the hoisting equipment, the operator manually aligns the rear shell 16 vertically with the front shell 17.

[0035] Finally, the operator controls the clamping cylinders 1 on both sides to operate. When the clamping cylinders 1 operate, they control the swing rods 10 on both sides to rotate inward and contact the front shell 17. Then, the piston rod of the clamping cylinder 1 rises, and the swing rods 10 on both sides provide an upward lifting force to the front shell 17, thereby pressing the front shell 17 and the rear shell 16 together, completing the box closing operation. In this box closing device, all contact points or contact surfaces of the parts that contact the outer shell (front shell 17 or rear shell 16) (such as the swing bracket 7) are equipped with buffer components (such as rubber pads) to avoid damage to the outer shell during the box closing operation.

[0036] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model without departing from its technical solution shall still fall within the protection scope of this utility model.

Claims

1. A device for closing the housing of an automotive main reducer, characterized in that: The main frame includes a first clamping mechanism that reciprocates and translates to clamp the rear shell (16) within the main frame. The main frame also includes a second clamping mechanism that clamps and lifts the front shell (17). The second clamping mechanism is arranged perpendicular to the translation direction of the first clamping mechanism.

2. The automotive main reducer housing closing device according to claim 1, characterized in that: The first clamping mechanism includes a movable frame (2) that moves within the main frame, and a translation cylinder (13) for driving the movable frame (2) to move is mounted on the main frame.

3. The automotive main reducer housing closing device according to claim 2, characterized in that: The first clamping mechanism also includes a movable clamping block (4) and a fixed clamping block (9) that move relative to each other. The movable clamping block (4) is installed on the surface of the movable frame (2), and the fixed clamping block (9) is fixed inside the main frame.

4. The automotive main reducer housing closing device according to claim 2, characterized in that: The main frame includes two guide shafts (8) arranged side by side, which pass through the two sides of the movable frame (2).

5. The vehicle main reducer housing closing device according to claim 1, characterized in that: The second clamping mechanism includes two clamping cylinders (1) arranged along the translation direction perpendicular to the first clamping mechanism. The two clamping cylinders (1) are arranged opposite each other on both sides of the main frame. The piston rods of the two clamping cylinders (1) are vertically downward, and a swing rod (10) is fixed at the end of the piston rod of each of the two clamping cylinders (1).

6. The automotive main reducer housing closing device according to claim 5, characterized in that: The clamping cylinder (1) is a rotary clamping cylinder.

7. The automotive main reducer housing closing device according to claim 1, characterized in that: The second clamping mechanism is located at one end of the translational stroke of the first clamping mechanism, and a swing lifting mechanism for lifting the front shell (17) is also provided at the other end of the translational stroke of the first clamping mechanism.

8. The automotive main reducer housing closing device according to claim 7, characterized in that: The swing lifting mechanism includes a swing cylinder (12) and a swing shaft (15) installed on the piston rod of the swing cylinder (12). A set of swing brackets (7) for lifting the front shell (17) are fixed side by side on the surface of the swing shaft (15).

9. The automotive main reducer housing closing device according to claim 8, characterized in that: A set of swing brackets (14) are fixed relatively inside the main frame. The swing shaft (15) is rotatably installed in the swing brackets (14) on both sides. The swing cylinder (12) is fixed at one of the swing brackets (14).

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