Method of assembling an intermediate bearing assembly

Abstract

The application relates to an intermediate support seat assembly assembling clamp which comprises a bottom plate, a base, a first support seat and a second support seat; a circular groove is formed in the upper end surface of the bottom plate; the base is slidably arranged at the upper end of the bottom plate, and first and second shaft end holes are arranged on the base in a spaced mode; the first support seat is in a hollow cylindrical shape, and the first support seat and the first shaft end hole are coaxially arranged; the second support seat is arranged on one side of the first support seat in a parallel mode, the second support seat is in a hollow cylindrical shape, and the second support seat and the second shaft end hole are coaxially arranged; and the application further provides an assembling method of the intermediate support seat assembly; the assembling method is operated by a single person in a single station by using the corresponding assembling clamp, so that the production line construction cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile parts assembly process, in particular to an intermediate support seat assembly assembly fixture and a method. BACKGROUND

[0002] In the automobile transmission system, the power transmission from the gearbox to the rear axle is generally realized by a transmission system composed of a front transmission shaft, an intermediate support seat and a rear transmission shaft. The intermediate support seat, as a connecting piece of the front transmission shaft and the rear transmission shaft, is connected to the vehicle body to support the transmission shaft assembly.

[0003] The intermediate support seat assembly generally comprises a shell, a bearing and a support shaft. The bearing is arranged in the support seat shell, the support shaft passes through the bearing and is rotatably connected to the support seat through the bearing. The support seat is connected to the vehicle body, and the support shaft is connected to the front and rear transmission shafts to transmit power.

[0004] The overall structure of the support seat assembly is complex, and manual installation is generally used. In the prior art, multiple people work together, but in the prior art, the installation of the support seat assembly needs to be adjusted multiple times. Because a complex assembly fixture is needed, a large amount of manpower and material resources is consumed each time the position is adjusted, resulting in huge consumption of the entire assembly operation and low assembly efficiency. SUMMARY

[0005] Based on the above description, the present application provides an intermediate support seat assembly assembly fixture to solve the technical problem of low assembly efficiency of the intermediate support seat assembly assembly fixture in the prior art.

[0006] The technical solution of the present application to solve the above technical problem is as follows:

[0007] An intermediate support seat assembly assembly fixture comprises a bottom plate, a base, a first support seat and a second support seat.

[0008] A circular groove is formed on the upper end face of the bottom plate.

[0009] The base is slidably arranged on the upper end of the bottom plate, and first and second shaft end holes are arranged on the base in intervals.

[0010] The first support seat is a hollow cylinder, and the first support seat and the first shaft end hole are coaxially arranged.

[0011] The second support seat is arranged on one side of the first support seat in parallel, and the second support seat is a hollow cylinder. A spline tooth is formed on the inner side wall of the second support seat, and the second support seat and the second shaft end hole are coaxially arranged.

[0012] Compared with the prior art, the technical solution of the present application has the following beneficial technical effects:

[0013] The assembly fixture provided by the application greatly improves the assembly efficiency, reduces the number of adjustment and transportation during assembly, and reduces the labor consumption.

[0014] On the basis of the above technical solution, the application can be further improved as follows.

[0015] Further, the upper end surface height of the second supporting seat is lower than the upper end surface height of the first supporting seat, and the second supporting seat is formed with a positioning hole.

[0016] Further, the side surface of the bottom plate is connected with a baffle.

[0017] The application also provides an assembly method of the intermediate supporting seat assembly, which applies the intermediate supporting seat assembly assembly fixture according to any one of claims 1-3, and comprises the following steps.

[0018] S1, a protrusion is arranged in the circular groove, the outer dust cover is press-fitted onto the protrusion to form a first combined part, and two first combined parts are formed according to the above steps;

[0019] S2, an end cover is arranged in the circular groove, the oil seal is press-fitted onto the end cover to form a second combined part, and two second combined parts are formed according to the above steps;

[0020] S3, a shell is arranged on the first supporting seat, the outer ring of a tapered roller bearing is press-fitted into the shell to form a third combined part;

[0021] S4, a spline shaft is arranged coaxially on the second supporting seat, the inner ring of one tapered roller bearing is press-fitted from the upper end of the spline shaft, the spline shaft is turned upside down, the inner ring of another tapered roller bearing is press-fitted, and a fourth combined part is formed;

[0022] S5, the fourth combined part is placed into the third combined part, and the outer ring of another tapered roller bearing is press-fitted into the shell to form a fifth combined part;

[0023] S6, two sets of fasteners are installed on the second combined part to form two sixth combined parts, and the fasteners comprise inner dust covers matched with the outer dust covers;

[0024] S7, the two sixth combined parts are press-fitted to the two ends of the fifth combined part to form a seventh combined part;

[0025] S8, the two first combined parts are press-fitted to the two ends of the seventh combined part, and the open nuts and open pins are fixed to the two sides of the two first combined parts, the grease nipple is tightened, and grease is added.

[0026] The assembly method provided in this application involves assembling the lighter structure of the intermediate support assembly on a circular groove, assembling the main structure of the intermediate support assembly on the first and second support seats, then assembling the lighter structure onto the main structure, and finally fixing both ends to complete the assembly of this application. This assembly method uses corresponding assembly fixtures to enable single-person, single-station operation, saving production line construction costs.

[0027] Furthermore, in step S5, the third assembly is placed on the first support.

[0028] Furthermore, the fastener includes an O-ring, a washer, an open washer, and a bolt. The O-ring is installed in an annular groove on the outer wall of the end cap. The washer is installed on the side of the end cap near the housing. The bolt is inserted into the end cap. The dust cover and the open washer are sequentially placed between the head of the bolt and the end cap.

[0029] Furthermore, after the seventh assembly is formed in step S7, before implementing step S8, rotate the spline shaft. If the bearing rotates flexibly, it is qualified; otherwise, adjust the shim thickness to a qualified state.

[0030] Furthermore, step S8, pressing the two first assemblies onto both ends of the seventh assembly, includes:

[0031] S81. Place the seventh assembly on the first support and press a first assembly onto the seventh assembly.

[0032] S82. The seventh assembly, which has been press-fitted with one first assembly, is rotated upside down and placed on the second support. Another first assembly is then press-fitted onto the seventh assembly. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the structure of an intermediate support assembly assembly fixture provided in an embodiment of the present invention;

[0034] Figure 2 for Figure 1 A top-view structural diagram;

[0035] Figure 3 A schematic diagram illustrating the implementation state of step S1 of the assembly method provided in the embodiments of this application;

[0036] Figure 4 A schematic diagram illustrating the implementation state of step S2 of the assembly method provided in the embodiments of this application;

[0037] Figure 5 A schematic diagram illustrating the implementation state of step S3 of the assembly method provided in the embodiments of this application;

[0038] Figure 6The step S4 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state of the spline shaft before turning over;

[0039] Figure 7 The step S4 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state of the spline shaft after turning over;

[0040] Figure 8 The step S5 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state;

[0041] Figure 9 The step S5 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state;

[0042] Figure 10 The step S6 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state;

[0043] Figure 11 The step S7 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state;

[0044] Figure 12 The step S81 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state;

[0045] Figure 13 The step S82 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state;

[0046] Figure 14 The step S82 of the assembling method provided by the embodiment of the present application is a schematic diagram of the implementation state; DETAILED DESCRIPTION

[0047] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms, and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present application more thorough and comprehensive.

[0048] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application.

[0049] It will be understood that the spatially relative terms "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can also be oriented in the other directions (for example, rotated 90° or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0050] It is noted that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or connected to the other element through intervening elements. "Connected" in the following embodiments, if the connected circuit, module, unit, etc. have the transmission of electrical signal or data between each other, should be understood as "electrically connected", "communicatively connected" and the like.

[0051] As used herein, the singular forms "a", "an" and "the" include plural referents unless the context clearly dictates otherwise. It will be further understood that the terms "comprises", "comprising", "includes" and / or "including", or the like, when used in this specification, specify the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

[0052] The present application provides an assembly method of an intermediate support seat assembly, which applies a special intermediate support seat assembly assembly fixture, wherein, as shown in Figures 1-2 The fixture includes a base plate 110, a base 130, a first support seat 140 and a second support seat 150.

[0053] A circular groove 12a is formed on the upper end surface of the base plate 110.

[0054] Preferably, the base 130 is slidably arranged on the upper end of the base plate 110 through a sliding groove matching mode, the assembly position can be changed by changing the position of the base 130, and the base 130 can be adjusted according to the personal habits of the operator, and the first shaft end hole 13a and the second shaft end hole 13b are arranged on the base 130 in intervals.

[0055] The first support seat 140 is a hollow cylindrical shape, and the first support seat 140 and the first shaft end hole 13b are coaxially arranged.

[0056] The second supporting seat 150 is arranged side by side on one side of the first supporting seat 140, and is hollow and cylindrical. The inner side wall of the second supporting seat 150 is provided with a spline tooth 151. When the spline shaft 8 is inserted into the inner hole of the second supporting seat 150, the outer side wall of the spline shaft 8 can be matched with the spline tooth 151 to ensure the stability of the spline shaft 8. The second supporting seat 150 is coaxially arranged with the second shaft end hole 13b.

[0057] In the preferred embodiment of the present application, the upper end surface of the second supporting seat 150 is lower than the upper end surface of the first supporting seat 140. The upper end surface of the first supporting seat 140 can effectively support the end surface of the shell without the end cover, and the upper end surface of the second supporting seat 150 can effectively support the end surface of the shell with the end cover, thereby ensuring the structural stability during assembly.

[0058] The second supporting seat 150 is provided with a positioning hole for cooperating with the positioning pin 170 to realize the positioning of the shell.

[0059] The side surface of the bottom plate 110 is connected with a baffle 160 to prevent parts from rolling off the upper end surface of the bottom plate 110 during assembly.

[0060] The above assembly fixture uses the first supporting seat 140 and the second supporting seat 150 as the main assembly position during installation, and assembles other auxiliary accessories in the circular groove 12a area, thereby greatly improving the assembly efficiency, reducing the number of adjustment and transportation during assembly, and reducing the labor consumption.

[0061] The assembly method comprises the following steps in combination with Figures 4-13 as shown,

[0062] S1, a protrusion 2 is arranged in the circular groove 12a, and the outer dust cover 1 is press-fitted onto the protrusion to form a first combined part. Two first combined parts 21 and 22 are formed according to the above steps.

[0063] The two first combined parts 21 and 22 are placed aside for standby.

[0064] S2, an end cover 4 is arranged in the circular groove 12a, and the oil seal 3 is press-fitted onto the end cover 4 to form a second combined part. Two second combined parts 41 and 42 are formed according to the above steps.

[0065] S3, a shell 6 is arranged on the first supporting seat 140, and the outer ring 51 of a tapered roller bearing is press-fitted into the shell to form a third combined part 7.

[0066] S4, coaxially dispose the spline shaft 8 on the second supporting seat 150, press and fix the inner ring 52 of a tapered roller bearing on the upper end of the spline shaft 8, turn over the spline shaft 8, press and fix the inner ring 92 of another tapered roller bearing on the lower end of the spline shaft 8, and form the fourth assembly 10;

[0067] S5, place the fourth assembly 10 into the third assembly 7, then press and fix the outer ring 91 of another tapered roller bearing into the housing 6, and form the fifth assembly 11;

[0068] S6, install two sets of fasteners on the second assembly 41, 42, and form two sixth assemblies 171, 172, wherein the fasteners include the inner dust cover 14 matched with the outer dust cover 1;

[0069] S7, press and fix the two sixth assemblies 171, 172 into the two ends of the fifth assembly 11, and form the seventh assembly 18;

[0070] S8, press and fix the two first assemblies 21, 22 into the two ends of the seventh assembly 18, fix the open nut 20 and the open pin 23 to the two sides of the two first assemblies 21, 22 respectively, tighten the grease nipple 19, and add grease.

[0071] In step S5, the third assembly 7 is placed on the first supporting seat 140.

[0072] The assembling method provided by the application assembles the lighter structure of the intermediate supporting seat assembly on the circular groove 12a, assembles the main structure of the intermediate supporting seat assembly on the first supporting seat 140 and the second supporting seat 150, then assembles the lighter structure to the main structure, and finally fixes the two ends, so that the assembling of the application is completed. The corresponding assembling fixture is used to realize the operation of a single person in a single station, so that the production line construction cost is saved.

[0073] Further, the fasteners include the O-ring 12, the gasket 13, the open gasket 15, and the bolt 16. The O-ring 12 is installed in the annular groove on the outer sidewall of the end cover 4. The gasket 13 is installed on the side of the end cover 4 close to the housing 6. The bolt 16 is inserted into the end cover 4. The inner dust cover 14 and the open gasket 15 are sequentially arranged between the head of the bolt 16 and the end cover 4.

[0074] Preferably, after the seventh assembly is formed in step S7, before step S8 is implemented, the spline shaft 8 is rotated. If the bearing rotates flexibly, it is qualified. Otherwise, the thickness of the gasket 13 is adjusted until it is qualified.

[0075] In step S8, the two first assemblies 21, 22 are pressed and fixed into the two ends of the seventh assembly 18.

[0076] S81, placing the seventh assembly 18 on the first supporting seat 140, and pressing a first assembly 21 to the seventh assembly 18;

[0077] S82, turning upside down the seventh assembly 18 with the first assembly 21 pressed thereon and placing it on the second supporting seat 150, and pressing another first assembly 22 to the seventh assembly 18.

[0078] Wherein, the end face of the flange 2 is formed with a hole matched with the positioning pin 170, and when the seventh assembly 18 with the first assembly 21 pressed thereon is turned upside down and placed on the second supporting seat 150, the coaxiality of the flange 2 to be installed subsequently and the flange 2 installed previously can be ensured.

[0079] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An assembling method of an intermediate bearing seat assembly, using an intermediate bearing seat assembly assembling jig, the assembling jig comprising a base plate, a base, a first bearing seat and a second bearing seat; the base plate being provided with a circular groove on an upper end surface, the base being slidably arranged on the upper end of the base plate and being provided with a first shaft end hole and a second shaft end hole at intervals; the first bearing seat being hollow cylindrical and coaxial with the first shaft end hole, the second bearing seat being parallel to the first bearing seat, hollow cylindrical and having spline teeth formed on an inner side wall, and coaxial with the second shaft end hole, the assembling method comprising the following steps: characterized in that S1. A protrusion is arranged in the circular groove, an outer dust cover is press-fitted onto the protrusion to form a first assembly, and two first assemblies are formed according to the above steps; S2. An end cover is arranged in the circular groove, an oil seal is press-fitted onto the end cover to form a second assembly, and two second assemblies are formed according to the above steps; S3. A shell is arranged on the first bearing seat, an outer ring of a tapered roller bearing is press-fitted into the shell to form a third assembly; S4. A spline shaft is coaxially arranged on the second bearing seat, an inner ring of one tapered roller bearing is press-fitted onto the spline shaft, the spline shaft is turned upside down, an inner ring of another tapered roller bearing is press-fitted, and a fourth assembly is formed; S5. The fourth assembly is placed into the third assembly, an outer ring of another tapered roller bearing is press-fitted into the shell to form a fifth assembly; S6. Two sets of fasteners are correspondingly arranged on the second assembly to form two sixth assemblies, the fasteners comprising inner dust covers matched with the outer dust covers; S7. The two sixth assemblies are press-fitted to two ends of the fifth assembly to form a seventh assembly; S8. The two first assemblies are press-fitted to two ends of the seventh assembly, open nuts and open pins are respectively fixed to two sides of the two first assemblies, a grease nipple is tightened, and grease is added. In step S5, the third assembly is placed on the first bearing seat.

2. The method of assembling an intermediate bearing assembly of claim 1, wherein, The fasteners comprise O-rings, gaskets, open gaskets and bolts, the O-rings are arranged in annular grooves on outer side walls of the end covers, the gaskets are arranged on one side of the end cover close to the shell, the bolts are inserted into the end cover, and the dust covers and the open gaskets are sequentially arranged between the heads of the bolts and the end cover.

3. The method of assembling an intermediate bearing assembly of claim 1, wherein, After step S7, before step S8, the spline shaft is turned, if the bearing rotates flexibly, it is qualified, otherwise, the thickness of the gasket is adjusted until it is qualified.

4. The method of assembling an intermediate bearing assembly of claim 1, wherein, In step S8, the two first assemblies are press-fitted to two ends of the seventh assembly, comprising:

5. The method of assembling an intermediate bearing assembly of claim 1, wherein, S81. One first assembly is press-fitted to the seventh assembly after the seventh assembly is placed on the first bearing seat; S82. The seventh assembly with one first assembly is turned upside down and placed on the second bearing seat, and another first assembly is press-fitted to the seventh assembly. ​

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