Comprehensive testing fixture for speed reducer assembly

Abstract

The utility model provides a comprehensive testing fixture for a speed reducer assembly. The comprehensive testing fixture for the speed reducer assembly comprises a placing platform, a guide column, a positioning rod and a positioning piece. According to the speed reducer assembly comprehensive testing fixture provided by the utility model, the placement platform is arranged, the top surface of the placement platform is the mounting surface for mounting the speed reducer assembly, the top of the placement platform is concavely provided with the cavity for avoiding the shell on one side of the speed reducer assembly, and the guide column is fixedly mounted in the cavity. During use, the speed reducer assembly can be mounted on the placement platform, and the mounting position of the speed reducer assembly is positioned through the positioning piece. And then the positioning rod slides on the guide column, and the matching relation between the detection part on the positioning rod and the machining hole in the speed reducer assembly is observed. The mutual position matching relation of the speed reducer in the actual installation process is achieved, whether the position precision and the size precision of the speed reducer are qualified or not is detected, and the effect of correct installation and the precision approved by customers are achieved.

Description

Technical Field

[0001] This utility model belongs to the field of speed reducer assembly testing technology, specifically relating to a comprehensive inspection tool for speed reducer assemblies. Background Technology

[0002] Most gearbox housings are currently manufactured using casting, followed by machining of the mounting surfaces and holes. However, current gearbox housings are typically assembled in two sections to form a gearbox assembly, with shaft holes machined in different orientations on each section. The gearbox assembly also includes flanges for mounting to the vehicle body. After the gearbox assembly is fully machined, all machined holes and surfaces on the gearbox housing need to be inspected before it can be shipped to the manufacturer for assembly. Currently, gearbox assemblies are typically inspected using coordinate measuring machines (CMMs). However, CMMs require establishing a new coordinate system for each component, making the process complex and inefficient. Utility Model Content

[0003] This utility model provides a comprehensive inspection tool for speed reducer assemblies, which aims to solve the problem that the inspection of speed reducer assemblies is inconvenient after processing, affecting the inspection efficiency.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide a comprehensive inspection fixture for reducer assemblies, comprising:

[0005] The placement platform has a mounting surface on its top for placing the reducer assembly, and the top of the placement platform is recessed to accommodate a cavity for accommodating one side housing of the reducer assembly.

[0006] At least one guide post is fixedly installed inside the cavity of the placement platform. The length of the guide post is arranged vertically. The position of the guide post corresponds to the position of the machined hole on the reducer assembly. When the reducer assembly is installed on the placement platform, the guide post is located inside the reducer assembly.

[0007] A positioning rod is slidably mounted on the guide post in a vertical direction, and a detection part for detecting the size of the machining hole of the reducer assembly is provided on the outer side of the positioning rod;

[0008] A positioning element is provided on the placement platform to position the reducer assembly at the installation location.

[0009] In one possible implementation, the side of the placement platform is further provided with a detection hole communicating with the cavity. The size of the detection hole is coaxially arranged with the machining hole on the side of the reducer assembly, and a detection column is slidably arranged inside the detection hole. The detection column is provided with a sliding part for detecting the size of the machining hole on the side of the reducer assembly.

[0010] In one possible implementation, both the positioning rod and the detection column are equipped with handles at their ends for easy gripping by the operator.

[0011] In one possible implementation, the outer side of the guide post is provided with a guide portion for detecting the size of the internal machined holes of the reducer assembly.

[0012] In one possible implementation, the top end of the guide post is provided with a guide hole that slides with the positioning rod, and the guide hole is coaxially arranged with the guide post.

[0013] In one possible implementation, the positioning rod has a guide hole inside that slides with the guide post, the guide hole passing through the positioning rod and being coaxial with the positioning rod.

[0014] In one possible implementation, the placement platform is further provided with a plurality of threaded holes for fixing the reducer assembly, and the relative positions of the plurality of threaded holes are set to correspond to the positions of a plurality of mounting holes on the reducer assembly.

[0015] In one possible implementation, the placement platform is also freely equipped with a height gauge for detecting the position of each processing surface.

[0016] The solution shown in this application, compared with the prior art, features a placement platform. The top surface of the placement platform serves as the mounting surface for the reducer assembly. A cavity is recessed on the top of the placement platform to allow clearance from one side of the reducer assembly's housing. A guide post is fixedly installed inside the cavity. When the reducer assembly is installed on the placement platform, the guide post is located inside the reducer assembly. A positioning rod is slidably mounted on the guide post, and the dimensions of the detection part on the positioning rod are the same as the acceptable dimensions of the shaft to be installed later. In use, the reducer assembly can be installed on the placement platform, and the positioning member is used to position the reducer assembly. The positioning rod then slides on the guide post to observe the fit between the detection part on the positioning rod and the machined holes on the reducer assembly. This ensures the correct positional fit of the reducer during actual installation, checking its positional and dimensional accuracy to achieve the desired installation effect and customer-approved precision. The operation is simple and effectively improves the inspection of the reducer assembly. Attached Figure Description

[0017] Figure 1 Schematic diagram of the structure of the integrated inspection fixture for the reducer assembly provided in this embodiment of the utility model Figure 1 ;

[0018] Figure 2 Schematic diagram of the structure of the integrated inspection fixture for the reducer assembly provided in this embodiment of the utility model Figure 2 ;

[0019] Figure 3 This is a schematic diagram of the installation structure of the guide post and positioning rod provided in an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Placement platform; 2. Guide column; 21. Guide part; 3. Positioning rod; 31. Detection part; 4. Positioning component; 5. Detection column; 51. Sliding part; 6. Handle; 7. Height gauge. Detailed Implementation

[0022] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] Please refer to the following: Figures 1 to 3 The present invention provides a comprehensive inspection fixture for reducer assemblies. The comprehensive inspection fixture for reducer assemblies includes a placement platform 1, guide posts 2, positioning rods 3, and positioning elements 4. The top of the placement platform 1 has a mounting surface for placing the reducer assembly, and the top of the placement platform 1 has a recessed cavity for accommodating one side of the reducer assembly's housing. At least one guide post 2 is fixedly installed inside the cavity of the placement platform 1. The length direction of the guide post 2 is vertical, and the position of the guide post 2 corresponds to the position of the machined hole on the reducer assembly. When the reducer assembly is installed on the placement platform 1, the guide post 2 is located inside the reducer assembly. The positioning rod 3 is slidably mounted on the guide post 2 in the vertical direction, and the outer side of the positioning rod 3 has a detection part 31 for detecting the size of the machined hole in the reducer assembly. The positioning element 4 is mounted on the placement platform 1 and is used to position the reducer assembly at its installation location.

[0024] The comprehensive inspection fixture for reducer assemblies provided in this embodiment, compared with the prior art, features a placement platform 1. The top surface of the placement platform 1 serves as the mounting surface for the reducer assembly. A cavity is recessed on the top of the placement platform 1 to allow clearance from one side of the reducer assembly's housing. A guide post 2 is fixedly installed inside the cavity. When the reducer assembly is installed on the placement platform 1, the guide post 2 is located inside the reducer assembly. A positioning rod 3 is slidably mounted on the guide post 2. The dimensions of the detection part 31 on the positioning rod 3 are the same as the acceptable dimensions of the shaft to be installed later. In this application, during use, the reducer assembly can be installed on the placement platform 1, and the installation position of the reducer assembly can be positioned using the positioning element 4. Then, the positioning rod 3 slides on the guide post 2 to observe the fit between the detection part 31 on the positioning rod 3 and the machined holes on the reducer assembly. This ensures the mutual positional fit of the reducer during actual installation, checks its positional and dimensional accuracy to achieve correct installation and customer-approved precision. The operation is simple and effectively improves the inspection of reducer assemblies.

[0025] Specifically, in this embodiment, the number of guide posts 2 is determined by the number of machined holes on the top of the reducer assembly when it is installed on the placement platform 1.

[0026] Preferably, in this embodiment, the positioning element 4 is a positioning pin. When the reducer assembly is placed on the placement platform 1, the mounting surface of the mounting flange on the reducer abuts against the mounting surface of the placement platform 1, and two pin holes that slide with the positioning element 4 are provided on the mounting flange, thereby facilitating the positioning of the reducer assembly.

[0027] Specifically, in this embodiment, the detection part 31 on the positioning rod 3 is coaxially arranged with the positioning rod 3, and when the positioning rod 3 is installed on the guide post 2, the positioning rod 3 and the guide post 2 are coaxially arranged. When the reducer assembly is installed on the placement platform 1, the installation position of the guide post 2 is the same as the machining hole on the reducer assembly.

[0028] In some embodiments, the placement platform 1 described above may adopt the following... Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2The side of the placement platform 1 is also provided with a detection hole communicating with the cavity. The size of the detection hole is coaxial with the side machining hole of the reducer assembly, and a detection post 5 is slidably arranged inside the detection hole. The detection post 5 is provided with a sliding part 51 for detecting the size of the side machining hole of the reducer assembly. When the reducer assembly is installed on the placement platform 1, the part of the reducer assembly located inside the cavity is provided with a side hole. A detection hole coaxial with the side hole is provided on the side of the placement platform 1. The detection post 5 is slidably arranged inside the detection hole, and the end of the detection post 5 is provided with a sliding part 51. The position and dimensional accuracy of the side hole can be detected by the sliding part 51. At the same time, combined with the detection of the positioning rod 3, the hole positions of multiple holes on the reducer assembly can be detected simultaneously.

[0029] Specifically, in this embodiment, when multiple stepped holes are provided on the reducer assembly, the positioning rod 3 is provided with detection parts 31 corresponding to the multiple stepped holes respectively, and the detection column 5 is provided with sliding parts 51 corresponding to the multiple stepped holes respectively.

[0030] In some embodiments, the positioning rod 3 described above can be as follows: Figure 1 , Figure 2 and Figure 3 The structure shown. See also... Figure 1 , Figure 2 and Figure 3 Both the positioning rod 3 and the detection column 5 are equipped with handles 6 at their ends for easy gripping by operators. The positioning rod 3 and the detection column 5 have a hollow internal structure, which can reduce their weight. Furthermore, two hand-held rods, which are handles 6, are threadedly connected to the ends of the positioning rod 3 and the detection column 5, making it convenient for operators to grip the positioning rod 3 and the detection column 5.

[0031] Specifically, in this embodiment, threaded holes for installing handles 6 are provided at both ends of the positioning rod 3 and the detection column 5.

[0032] In some embodiments, the guide post 2 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 The guide post 2 has a guide portion 21 on its outer side for detecting the size of the machined holes inside the reducer assembly. The guide portion 21 is used to detect the size and position of the machined holes located inside the reducer assembly. When one side of the reducer assembly housing is placed inside the cavity, it can be guided by the guide portion 21 on the outer side of the guide post 2, and the size and position of the machined holes can be detected. The machined holes inside the reducer assembly can be inspected.

[0033] In some embodiments, the guide post 2 may be adopted as follows: Figure 3 The structure shown. See also Figure 3The top of the guide post 2 is provided with a guide hole that slides with the positioning rod 3, and the guide hole is coaxial with the guide post 2. The guide hole and the guide post 2 are coaxial, and a guide part 21 is provided at the end of the positioning rod 3 away from the detection part 31 for sliding inside the guide hole. The guide part 21 is coaxial with both the positioning rod 3 and the detection part 31, allowing the position and size of the machined hole to be detected by sliding the positioning rod 3 on the guide post 2 when inspecting the machined hole on the reducer assembly.

[0034] In some embodiments, the guide post 2 may be adopted as follows: Figure 3 The structure shown. See also Figure 3 The positioning rod 3 has a guide hole inside that slides with the guide post 2. The guide hole passes through the positioning rod 3 and is coaxially arranged with the positioning rod 3. The positioning rod 3 has a hollow structure, and the guide hole passes through the positioning rod 3, allowing the positioning rod 3 to slide freely along the length of the guide post 2. Preferably, in this embodiment, a detection part 31 is provided at one end of the positioning rod 3, and a limiting part with an outer diameter slightly larger than the maximum size of the machining hole is provided at the other end of the positioning rod 3. The limiting part can detect whether the size of the machining hole is out of tolerance.

[0035] Preferably, this application also includes a detection column 5 that drives the limiting part. This can detect whether the machining of the side machining holes of the reducer assembly is out of tolerance.

[0036] In some embodiments, the placement platform 1 described above may employ, as follows: Figure 3 The structure shown. See also Figure 3 The placement platform 1 is also provided with multiple threaded holes for fixing the reducer assembly. The relative positions of these threaded holes correspond to the positions of multiple mounting holes on the reducer assembly. Multiple threaded holes are also provided on the top surface of the placement platform 1. These threaded holes are arranged around the perimeter of the cavity opening, and the relative positions of the threaded holes and the positioning element 4 correspond one-to-one with the relative positions of the through holes and pin holes on the reducer assembly. This allows the reducer assembly to be fixed to the mounting surface with bolts, improving the stability of the reducer assembly's position during testing.

[0037] In some embodiments, the placement platform 1 described above may employ, as follows: Figure 1 , Figure 2 The structure shown. See also... Figure 1 , Figure 2A height gauge 7 for detecting the positional accuracy of each machined surface is also freely mounted on the placement platform 1. The height gauge 7 includes a magnetic base for fixing to the placement platform 1, a vertically oriented scale fixedly mounted on the magnetic base, a measuring seat slidably mounted on the scale along the vertical direction, and a dial indicator mounted on the measuring seat. The positional accuracy of the machined surfaces on the reducer assembly can be detected using the height gauge 7. Specifically, in this embodiment, the flange face of the reducer assembly is mounted on the mounting surface of the placement platform 1, and the machining accuracy of each machined surface can be detected using the height gauge 7.

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

Claims

1. A comprehensive inspection tool for reducer assembly, characterized in that: include: A placement platform (1), wherein a mounting surface for placing a reducer assembly is provided on the top of the placement platform (1), and a cavity for accommodating a housing on one side of the reducer assembly is recessed on the top of the placement platform (1); A guide column (2), at least one in number, fixedly mounted inside the mold cavity of the placement platform (1); the length direction of the guide column (2) is arranged along the vertical direction; the position of the guide column (2) is arranged corresponding to the position of the processed hole on the reducer assembly; when the reducer assembly is mounted on the placement platform (1), the guide column (2) is located inside the reducer assembly; A positioning rod (3) is slidably arranged on the guide column (2) in a vertical direction, and a detection portion (31) for detecting the size of a machining hole of a reducer assembly is arranged on the outer side of the positioning rod (3); A positioning member (4) is arranged on the placement platform (1) and is used to locate the installation position of the reducer assembly.

2. The comprehensive inspection fixture for reducer assembly according to claim 1, characterized in that: The side of the placement platform (1) is also provided with a detection hole connected to the mold cavity, the size of the detection hole is coaxially arranged with the side processing hole of the reducer assembly, and a detection column (5) is slidably arranged inside the detection hole, and the detection column (5) is provided with a sliding part (51) for detecting the size of the side processing hole of the reducer assembly.

3. The comprehensive inspection fixture for reducer assembly according to claim 2, characterized in that: The ends of the positioning rod (3) and the detection column (5) are both provided with handles (6) for operators to hold conveniently.

4. The comprehensive inspection fixture for reducer assembly according to claim 1, characterized in that: A guide portion (21) for detecting the size of a machining hole inside the reducer assembly is arranged on the outer side of the guide column (2).

5. The comprehensive inspection fixture for reducer assembly according to claim 1, characterized in that: The top end of the guide column (2) is provided with a guide hole which is slidably matched with the positioning rod (3), and the guide hole is coaxially arranged with the guide column (2).

6. The comprehensive inspection fixture for reducer assembly according to claim 1, characterized in that: The interior of the positioning rod (3) is provided with a guide sliding hole which is slidably matched with the guide column (2); the guide sliding hole passes through the positioning rod (3) and is coaxially arranged with the positioning rod (3).

7. The comprehensive inspection fixture for reducer assembly according to claim 1, characterized in that: The placement platform (1) is also provided with a plurality of threaded holes for fixing the reducer assembly, and the relative positions of the plurality of threaded holes are arranged corresponding to the positions of the plurality of mounting holes on the reducer assembly.

8. The comprehensive inspection fixture for reducer assembly according to claim 1, characterized in that: A height gauge (7) for detecting the position of each processing surface is also freely installed on the placement platform (1).

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