Intermediate supporting seat assembly assembling clamp and assembling method

Abstract

The invention relates to an assembling clamp for an intermediate supporting seat assembly. The assembling clamp comprises a bottom plate, a base, a first supporting seat and a second supporting seat, a circular groove is formed in the upper end face of the bottom plate. The base is slidably arranged at the upper end of the bottom plate, and a first shaft end hole and a second shaft end hole are formed in the base at intervals. The first supporting seat is in a hollow cylinder shape, and the first supporting seat and the first shaft end hole are coaxially arranged; the second supporting seat is arranged on one side of the first supporting seat in parallel, the second supporting seat is in a hollow cylinder shape, and the second supporting seat and the second shaft end hole are coaxially arranged; the invention further provides an assembling method of the intermediate supporting seat assembly. According to the assembling method, single-person and single-station operation is achieved through the corresponding assembling clamps, and the construction cost of a production line is saved.

Description

Technical Field

[0001] The invention relates to the technical field of automobile parts assembly process, and in particular to an intermediate support seat assembly assembly fixture and an assembly method. Background Art

[0002] The transmission of power from the gearbox to the rear axle in the automobile transmission system is generally achieved by a transmission system consisting of a front drive shaft, an intermediate support seat, and a rear drive shaft. Among them, the intermediate support seat serves as a connecting piece between the front drive shaft and the rear drive shaft. It is connected to the vehicle body to support the drive shaft assembly.

[0003] The intermediate support seat assembly generally includes a housing, a bearing and a support shaft. The bearing is arranged in the support seat housing. 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 drive shafts to transmit power.

[0004] The overall structure of the support seat assembly is complex and is generally installed manually. In the prior art, multiple people are generally required to work together. However, in the prior art, the installation of the support seat assembly requires multiple adjustments to the installation position. Because a more complex assembly fixture is required, each adjustment of the position consumes a lot of manpower and material resources, resulting in huge consumption of the entire assembly operation and low assembly efficiency. Summary of the invention

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

[0006] The technical solution of the present invention to solve the above technical problems is as follows: An intermediate support seat assembly fixture comprises a bottom plate, a base, a first support seat and a second support seat; The upper end surface of the bottom plate is formed with a circular groove; The base is slidably arranged on the upper end of the bottom plate, and a first shaft end hole and a second shaft end hole are arranged on the base at intervals; 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 in parallel on one side of the first support seat, the second support seat is a hollow cylindrical shape, spline teeth are 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.

[0007] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: The assembly fixture provided in the present application uses the first support seat and the second support seat as the main assembly positions when installing the support seat assembly, and assembles other auxiliary accessories in the circular groove area, thereby greatly improving the assembly efficiency, reducing the number of adjustments and transportation during assembly, and reducing manpower consumption.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the height of the upper end surface of the second support seat is lower than the height of the upper end surface of the first support seat, and a positioning hole is formed on the second support seat.

[0010] Furthermore, a baffle is connected to the side of the bottom plate.

[0011] The present application also provides an assembly method of an intermediate support seat assembly, using the intermediate support seat assembly assembly fixture as described in any one of claims 1 to 3, comprising the following steps: S1. A flange is provided on the circular groove, and the outer dust cover is pressed onto the flange to form a first assembly. Two first assemblies are formed according to the above steps; S2. An end cover is arranged in the circular groove, and an oil seal is pressed onto the end cover to form a second assembly. Two second assemblies are formed according to the above steps; S3, setting a housing on the first support seat, and press-fitting an outer ring of a tapered roller bearing into the housing to form a third assembly; S4, coaxially arranging a spline shaft on the second support seat, press-fitting and fixing an inner ring of a tapered roller bearing from the upper end of the spline shaft, turning the spline shaft up and down, and press-fitting another inner ring of a tapered roller bearing to form a fourth assembly; S5, placing the fourth assembly into the third assembly, and then press-fitting the outer ring of another tapered roller bearing into the housing to form a fifth assembly; S6, installing two sets of fasteners on the second assembly correspondingly to form two sixth assemblies, wherein the fasteners include an inner barrier cover matched with the outer barrier cover; S7, press-fitting two sixth assemblies to two ends of the fifth assembly respectively to form a seventh assembly; S8. Press-fit the two first assemblies onto the two ends of the seventh assembly, and respectively fix the split nut and split pin to the two sides of the two first assemblies, tighten the grease nipple and add grease. The assembly method provided by the present application assembles the lighter structure of the intermediate support seat assembly on the circular groove, assembles the main structure in the intermediate support seat assembly on the first support seat and the second support seat, and then assembles the lighter structure to the main structure, and finally fixes the two ends to complete the assembly of the present application. The assembly method uses corresponding assembly fixtures to realize single-person single-station operation, saving production line construction costs.

[0012] Furthermore, in step S5, the third assembly is placed on the first supporting seat.

[0013] Furthermore, the fastener includes an O-ring, a gasket, an open gasket and a bolt, the O-ring is installed in the annular groove of the outer side wall of the end cover, the gasket is installed on the side of the end cover close to the shell, the bolt is inserted into the end cover, and the dust cover and the open gasket are sequentially arranged between the head of the bolt and the end cover.

[0014] Furthermore, after the seventh assembly is formed in step S7, before implementing step S8, the spline shaft is rotated. If the bearing rotates flexibly, it is qualified. Otherwise, the thickness of the gasket is adjusted to a qualified state.

[0015] Furthermore, step S8 of press-fitting the two first assemblies onto the two ends of the seventh assembly includes: S81, placing the seventh assembly on the first support seat, and press-fitting one of the first assembly onto the seventh assembly; S82, turning the seventh assembly with one first assembly pressed on it upside down and placing it on the second supporting seat, and pressing another first assembly on the seventh assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of an intermediate support seat assembly fixture provided by an embodiment of the present invention; Figure 2 for Figure 1 A schematic diagram of a top view structure; Figure 3 A schematic diagram of the implementation state of step S1 of the assembly method provided in an embodiment of the present application; Figure 4 A schematic diagram of the implementation state of step S2 of the assembly method provided in an embodiment of the present application; Figure 5 A schematic diagram of the implementation state of step S3 of the assembly method provided in an embodiment of the present application; Figure 6 A schematic diagram of the implementation state of step S4 of the assembly method provided in the embodiment of the present application before the spline shaft is turned around; Figure 7 A schematic diagram of the implementation state of step S4 of the assembly method provided in the embodiment of the present application after the spline shaft is turned around; Figure 8 A schematic diagram of the implementation state of step S5 of the assembly method provided in an embodiment of the present application; Fig. 9 A schematic diagram of assembling a fastener in an assembly method provided in an embodiment of the present application; Fig.10A schematic diagram of the implementation state of step S6 of the assembly method provided in an embodiment of the present application; Fig.11 A schematic diagram of the implementation state of step S7 of the assembly method provided in the embodiment of the present application; Fig.12 A schematic diagram of the implementation state of step S81 of the assembly method provided in an embodiment of the present application; Fig.13 A schematic diagram of the implementation state of step S82 of the assembly method provided in an embodiment of the present application; Fig.14 It is a half-section schematic diagram of the intermediate support seat assembly after assembly of this application. DETAILED DESCRIPTION

[0017] In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. Embodiments of the present application are provided 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.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0019] It will be appreciated that spatial relationship terms such as "under", "beneath", "below", "under", "above", "above", etc., may be used herein to describe the relationship of an element or feature shown in the figures to other elements or features. It will be appreciated that, in addition to the orientations shown in the figures, spatial relationship terms also include different orientations of the device in use and operation. For example, if the device in the accompanying drawings is flipped, an element or feature described as "under other elements" or "under it" or "under it" will be oriented as "on" the other elements or features. Thus, the exemplary terms "under" and "under" may include both upper and lower orientations. In addition, the device may also include additional orientations (e.g., rotated 90° or other orientations), and the spatial descriptors used herein are interpreted accordingly.

[0020] It should be noted that when an element is considered to be "connected" to another element, it can be directly connected to the other element, or connected to the other element through an intermediate element. The "connection" in the following embodiments should be understood as "electrical connection", "communication connection", etc. if the connected circuits, modules, units, etc. have electrical signals or data transmission between each other.

[0021] When used herein, the singular forms "a", "an", and "said / the" may also include plural forms, unless the context clearly indicates otherwise. It should also be understood that the terms "include / comprise" or "have" etc. specify the presence of stated features, wholes, steps, operations, components, parts or combinations thereof, but do not exclude the possibility of the presence or addition of one or more other features, wholes, steps, operations, components, parts or combinations thereof.

[0022] The present application provides an assembly method of an intermediate support seat assembly, using a special intermediate support seat assembly fixture, wherein: Figure 1-2 As shown, the fixture includes a bottom plate 110 , a base 130 , a first support seat 140 and a second support seat 150 .

[0023] A circular groove 12 a is formed on the upper end surface of the bottom plate 110 .

[0024] Preferably, the base 130 is slidably arranged on the upper end of the bottom plate 110 by means of a slide groove, and the assembly position can be changed by changing the position of the base 130, which can be adjusted according to the operator's personal habits. The base 130 is provided with a first shaft end hole 13a and a second shaft end hole 13b at intervals; The first support seat 140 is in a hollow cylindrical shape, and the first support seat 140 and the first shaft end hole 13 b are coaxially arranged.

[0025] The second support seat 150 is arranged in parallel on one side of the first support seat 140. The second support seat 150 is a hollow cylindrical shape. A spline tooth 151 is formed on the inner wall of the second support seat 150. When the spline shaft 8 is inserted into the inner hole of the second support seat 150, the outer wall of the spline shaft 8 can cooperate with the spline tooth 151 to ensure the stability of the spline shaft 8. The second support seat 150 and the second shaft end hole 13b are coaxially arranged.

[0026] In a preferred embodiment of the present application, the height of the upper end surface of the second support seat 150 is lower than the height of the upper end surface of the first support seat 140. The upper end surface of the first support seat 140 can effectively support the end surface of the shell without an end cover installed, and the upper end surface of the second support seat 150 can effectively support the end surface of the shell with an end cover installed, thereby ensuring the structural stability during assembly.

[0027] A positioning hole is formed on the second support seat 150 for cooperating with the positioning pin 170 to realize the positioning of the housing.

[0028] A baffle 160 is connected to the side of the bottom plate 110 to prevent parts from rolling off the upper end surface of the bottom plate 110 during assembly.

[0029] When installing the above-mentioned assembly fixture and the support seat assembly, the first support seat 140 and the second support seat 150 are used as the main assembly positions, and other auxiliary accessories are assembled in the circular groove 12a area, thereby greatly improving the assembly efficiency, reducing the number of adjustments and transportation during assembly, and reducing manpower consumption.

[0030] The assembly method comprises the following steps: Figures 4 to 13 As shown, S1, a flange 2 is provided in the circular groove 12a, and the outer dust cover 1 is pressed onto the flange to form a first assembly, and two first assemblies 21, 22 are formed according to the above steps; The two first assemblies 21 and 22 are placed aside for use.

[0031] S2. The end cover 4 is arranged in the circular groove 12a, and the oil seal 3 is pressed onto the end cover 4 to form a second assembly. Two second assemblies 41 and 42 are formed according to the above steps; S3, a housing 6 is arranged on the first support seat 140, and an outer ring 51 of a tapered roller bearing is press-fitted into the housing to form a third assembly 7; S4, a spline shaft 8 is coaxially arranged on the second support seat 150, an inner ring 52 of a tapered roller bearing is press-fitted and fixed from the upper end of the spline shaft 8, the spline shaft is turned upside down, and another inner ring 92 of the tapered roller bearing is press-fitted to form a fourth assembly 10; S5, placing the fourth assembly 10 into the third assembly 7, and then press-fitting the outer ring 91 of another tapered roller bearing into the housing 6 to form a fifth assembly 11; S6, installing two sets of fasteners on the second assembly 41, 42 correspondingly to form two sixth assemblies 171, 172, wherein the fasteners include an inner barrier cover 14 matched with the outer barrier cover 1; S7, press-fitting the two sixth assemblies 171 and 172 to the two ends of the fifth assembly 11 respectively to form a seventh assembly 18; S8. Press-fit the two first assemblies 21 and 22 onto the two ends of the seventh assembly 18, and fix the split nut 20 and the split pin 23 to the two sides of the two first assemblies 21 and 22 respectively, tighten the grease nipple 19 and add grease.

[0032] In step S5 , the third assembly 7 is placed on the first supporting seat 140 .

[0033] The assembly method provided by the present application assembles the lighter structure of the intermediate support seat assembly on the circular groove 12a, assembles the main structure in the intermediate support seat assembly on the first support seat 140 and the second support seat 150, and then assembles the lighter structure to the main structure, and finally fixes the two ends to complete the assembly of the present application. The assembly method adopts the corresponding assembly fixture to realize single-person single-station operation, saving the cost of production line construction.

[0034] Furthermore, the fastener includes an O-ring 12, a gasket 13, an open gasket 15 and a bolt 16, the O-ring 12 is installed in the annular groove of the outer wall of the end cover 4, the gasket 13 is installed on the side of the end cover 4 close to the shell 6, the bolt 16 is inserted into the end cover 4, and 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.

[0035] Preferably, after forming the seventh assembly in step S7, before implementing step S8, the spline shaft 8 is rotated, and if the bearing rotates flexibly, it is qualified, otherwise, the thickness of the gasket 13 is adjusted to a qualified state.

[0036] The step S8 of press-fitting the two first assemblies 21 and 22 onto the two ends of the seventh assembly 18 includes: S81, placing the seventh assembly 18 on the first support seat 140, and press-fitting a first assembly 21 onto the seventh assembly 18; S82, turn the seventh assembly 18 on which one first assembly 21 is pressed upside down and place it on the second support seat 150, and press-fit another first assembly 22 onto the seventh assembly 18.

[0037] Among them, a hole that cooperates with the positioning pin 170 is formed on the end face of the flange 2. When the seventh assembly 18 with a first assembly 21 is pressed and turned upside down and placed on the second support seat 150, the coaxiality of the flange 2 installed subsequently and the flange 2 installed previously can be guaranteed.

[0038] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intermediate support seat assembly fixture, characterized in that: It includes a bottom plate, a base, a first support seat and a second support seat; The upper end surface of the bottom plate is formed with a circular groove; The base is slidably arranged on the upper end of the bottom plate, and a first shaft end hole and a second shaft end hole are arranged on the base at intervals; 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 in parallel on one side of the first support seat, the second support seat is a hollow cylindrical shape, spline teeth are 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.

2. The intermediate support seat assembly fixture according to claim 1, characterized in that: The height of the upper end surface of the second supporting seat is lower than the height of the upper end surface of the first supporting seat, and a positioning hole is formed on the second supporting seat.

3. The intermediate support seat assembly assembly fixture according to claim 2, characterized in that: The side surface of the bottom plate is connected with a baffle.

4. An assembly method of an intermediate support seat assembly, using the intermediate support seat assembly assembly fixture as described in any one of claims 1 to 3, comprising the following steps: S1. A flange is provided in the circular groove, and the outer dust cover is pressed onto the flange to form a first assembly. Two first assemblies are formed according to the above steps; S2. An end cover is arranged in the circular groove, and the oil seal is pressed onto the end cover to form a second assembly. Two second assemblies are formed according to the above steps; S3, setting a housing on the first support seat, and press-fitting an outer ring of a tapered roller bearing into the housing to form a third assembly; S4, coaxially arranging a spline shaft on the second support seat, press-fitting and fixing an inner ring of a tapered roller bearing from the upper end of the spline shaft, turning the spline shaft up and down, and press-fitting another inner ring of a tapered roller bearing to form a fourth assembly; S5, placing the fourth assembly into the third assembly, and then press-fitting the outer ring of another tapered roller bearing into the housing to form a fifth assembly; S6, installing two sets of fasteners on the second assembly correspondingly to form two sixth assemblies, wherein the fasteners include an inner barrier cover matched with the outer barrier cover; S7, press-fitting two sixth assemblies to two ends of the fifth assembly respectively to form a seventh assembly; S8. Press-fit the two first assemblies onto the two ends of the seventh assembly, and respectively fix the split nut and split pin to the two sides of the two first assemblies, tighten the grease nipple and add grease.

5. The assembly method of the intermediate support seat assembly according to claim 4, characterized in that: In step S5, the third assembly is placed on the first supporting seat.

6. The method for assembling the intermediate support assembly according to claim 4, characterized in that: The fastener includes an O-ring, a gasket, an open gasket and a bolt. The O-ring is installed in the annular groove of the outer side wall of the end cover, the gasket is installed on the side of the end cover close to the shell, the bolt is inserted into the end cover, and the dust cover and the open gasket are sequentially arranged between the head of the bolt and the end cover.

7. The method for assembling the intermediate support assembly according to claim 4, characterized in that: After the seventh assembly is formed in step S7, before implementing step S8, the spline shaft is rotated. If the bearing rotates flexibly, it is qualified. Otherwise, the thickness of the gasket is adjusted to a qualified state.

8. The method for assembling the intermediate support assembly according to claim 4, characterized in that: Step S8: press-fitting the two first assemblies onto the two ends of the seventh assembly, including: S81, placing the seventh assembly on the first support seat, and press-fitting one of the first assembly onto the seventh assembly; S82, turning the seventh assembly with one first assembly pressed on it upside down and placing it on the second supporting seat, and pressing another first assembly on the seventh assembly.

Images