A cvt transmission housing inspection fixture

Abstract

This utility model provides a CVT transmission housing inspection fixture, relating to the field of CVT transmission technology. It includes a bottom support plate, with a vertical support plate fixedly connected to the top rear side of the bottom support plate. At least three clamping fixtures and at least one auxiliary positioning fixture are distributed circumferentially along the inner side of the vertical support plate. At least one adjustable support fixture is provided on the bottom support plate. The auxiliary positioning fixture includes a fixedly installed limiting pin that abuts against the transmission housing to provide support and positioning on its side. This invention addresses the technical problems encountered in the actual inspection of CVT transmission housings, such as the complex workpiece structure, difficulty in multi-angle inspection, the distribution of inspectable surfaces, holes, and spatial features in different directions, the inability of a single clamping posture to cover all inspection content, the need for multiple adjustments to the workpiece posture, resulting in low inspection efficiency, and the potential for human error due to frequent clamping.

Description

Technical Field

[0001] This utility model mainly relates to the field of CVT transmission technology, specifically to a CVT transmission housing inspection fixture. Background Technology

[0002] As a key component, the machining accuracy of the CVT transmission housing directly affects the assembly quality and performance of the transmission. Currently, CVT transmission housings are mostly complex polyhedral structures with multiple machined surfaces and hole systems distributed at various spatial angles, requiring numerous inspection items, including dimensions, geometric tolerances, and positional accuracy.

[0003] There are many technical challenges in the actual inspection of CVT transmission housings. For example, due to the complex structure of the housing, it is difficult to inspect from multiple angles. The surfaces, holes and spatial features that need to be inspected on the CVT transmission housing are distributed in different directions. A single clamping posture cannot cover all the inspection contents. The workpiece posture needs to be adjusted multiple times, resulting in low inspection efficiency. In addition, frequent clamping can easily introduce human error.

[0004] It should be noted that the above content falls within the scope of technical knowledge of those skilled in the art. Due to the vast and complex nature of the technical content in this field, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] 1. The technical problem to be solved by the utility model:

[0006] This utility model provides a CVT transmission housing inspection fixture to solve the technical problems existing in the background art.

[0007] 2. Technical Solution:

[0008] To achieve the above objectives, the technical solution provided by this utility model is as follows: a CVT transmission housing inspection fixture, including a bottom support plate, a vertical support plate fixedly connected to the top rear side of the bottom support plate, at least three clamping fixtures and at least one auxiliary positioning fixture distributed circumferentially on the inner side of the vertical support plate, and at least one adjustable support fixture provided on the bottom support plate.

[0009] The auxiliary positioning fixture includes a fixedly installed limiting pin that abuts against the transmission housing to support and position it on its side. The CVT transmission housing is placed vertically on the side of a vertical support plate, with an adjustable support fixture at the bottom for support, and three clamping fixtures for clamping and positioning its edges. The auxiliary positioning fixture on the side applies a lateral support and positioning force to the CVT transmission housing diagonally opposite the adjustable support fixture, ensuring that the CVT transmission housing is in a near-suspended state in three-dimensional space. This facilitates the measurement of parameters such as the bore diameter of the CVT transmission by the inspectors. Since the CVT transmission housing surface is in a suspended state, especially the two sides of the transmission housing, there is no need to adjust the position of the CVT transmission housing multiple times during measurement, improving inspection efficiency and accuracy.

[0010] Furthermore, the clamping fixture is provided in three parts, one on each side of the bottom and one on the top, arranged in a triangle. The clamping fixture includes a fixing block, and the fixing block has an abutment protrusion at the contact point with the transmission housing. The side of the fixing block is fixedly connected to the side of the vertical support plate. A quick clamp is connected to the outside of the fixing block. The quick clamp is used to apply a uniform clamping force to the side wall of the CVT transmission housing.

[0011] Furthermore, the adjustable support fixture has an L-shaped support groove on the symmetrical fixed block, and the bottom of the L-shaped support groove is connected to the first support column, which is used to support the other end of the transmission housing.

[0012] Furthermore, the adjustable support fixture includes a support block and a height-adjustable locking bolt washer.

[0013] Furthermore, triangular reinforcing plates and reinforcing fixing plates are respectively provided on both sides of the vertical support plate.

[0014] Furthermore, the outer side of the triangular reinforcing plate is provided with a gripping handle.

[0015] Furthermore, the bottom support plate and the vertical support plate are made of aviation aluminum and have a hollow design.

[0016] 3. Beneficial effects:

[0017] Compared with the prior art, the technical solution provided by this utility model has the following advantages:

[0018] This utility model is reasonably designed. Through the coordinated action of the triangularly distributed clamping fixture and the adjustable support fixture, it achieves stable three-dimensional positioning of the CVT transmission housing, ensuring that each measuring surface is suspended during testing and avoiding repeated adjustments.

[0019] The positioning method, which combines quick clamps and limit pins, along with a height-adjustable support structure, ensures clamping efficiency and significantly improves versatility and ease of operation.

[0020] The hollow design of aviation aluminum material reduces weight while ensuring structural strength. Combined with the design of reinforcing plates and handles, it takes into account both the stability of the tooling and the ease of movement. The overall solution effectively improves the inspection accuracy and work efficiency.

[0021] It should be noted that the structures not described in this utility model are the same as or can be implemented using existing technology, and will not be elaborated here, as they do not involve the design points and improvement directions of this utility model. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention when fixing the transmission housing;

[0023] Figure 2 This is a schematic diagram of the structure of the transmission housing of this utility model when it is removed;

[0024] Figure 3 This utility model Figure 2 A schematic diagram of the structure at point A;

[0025] Figure 4 This utility model Figure 2 A schematic diagram of the structure at point B;

[0026] Figure 5 This is a schematic diagram of the back structure of this utility model.

[0027] Figure label:

[0028] 1. Bottom support plate; 2. Vertical support plate; 21. Triangular reinforcing plate; 22. Reinforcing fixing plate; 23. Gripping handle; 3. Clamping fixture; 31. Fixing block; 32. Quick clamp; 33. L-shaped support groove; 34. First support column; 4. Auxiliary positioning fixture; 5. Adjustable support fixture; 51. Support block; 52. Locking bolt washer; 6. Limit pin. Detailed Implementation

[0029] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] It should be noted that structures not described in this invention do not involve the design points and improvement directions of this invention, and can all be achieved using existing technologies known to those skilled in the art.

[0034] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0035] See attached document Figure 1-5 A CVT transmission housing inspection fixture includes a bottom support plate 1, a vertical support plate 2 fixedly connected to the top rear side of the bottom support plate 1, at least three clamping fixtures 3 and at least one auxiliary positioning fixture 4 distributed circumferentially on the inner side of the vertical support plate 2, and at least one adjustable support fixture 5 provided on the bottom support plate 1.

[0036] The auxiliary positioning fixture 4 includes a fixedly installed limiting pin 6, which abuts against the transmission housing to provide support and positioning on its side. In this embodiment, please refer to... Figure 1The CVT transmission housing is placed vertically on the side of the vertical support plate 2. The bottom is supported by the adjustable support fixture 5, and the edges are clamped and positioned by three clamping fixtures 3. The auxiliary positioning fixture 4 on the side applies a lateral support and positioning force to the adjustable support fixture 5, ensuring that the CVT transmission housing is in a suspended state in three-dimensional space. This makes it easy for inspectors to measure parameters such as the bore diameter of the CVT transmission. Since the CVT transmission housing is suspended, especially the two sides, there is no need to adjust the position of the CVT transmission housing multiple times during measurement, which improves the efficiency and accuracy of the inspection.

[0037] The clamping fixture 3 has three parts, one on each side of the bottom and one on the top, arranged in a triangle. The clamping fixture 3 includes a fixing block 31 with abutting protrusion at the contact point with the transmission housing. The side of the fixing block 31 is fixedly connected to the side of the vertical support plate 2. The outside of the fixing block 31 is connected to a quick clamp 32. The quick clamp 32 is used to apply a uniform clamping force to the side wall of the CVT transmission housing. In this embodiment, after the transmission housing is placed in the adjustable support fixture 5, it is positioned vertically by the triangular clamping fixture 3, that is, it is fixed by the quick clamp 32 to ensure the stability of the transmission housing. In order to adapt to modern operation, the clamping fixture 3 can also adopt a cylinder clamping or hydraulic clamping method to improve clamping efficiency.

[0038] The adjustable support fixture 5 has an L-shaped support groove 33 on its symmetrical fixed block 31. The bottom of the L-shaped support groove 33 is connected to the first support column 34, which is used to support the other end of the transmission housing. In this embodiment, the first support column 34 and the adjustable support fixture 5 can better support the transmission housing.

[0039] The adjustable support fixture 5 includes a support block 51 and a height-adjustable locking bolt pad 52. The height of the locking bolt pad 52 can be finely adjusted by rotating it on the support block 51, thereby improving the support stability of the transmission housing.

[0040] The vertical support plate 2 is provided with a triangular reinforcing plate 21 and a reinforcing fixing plate 22 on both sides. In this embodiment, the stability of the overall device is improved by the triangular reinforcing plate 21 and the reinforcing fixing plate 22 to prevent the vertical support plate 2 from collapsing.

[0041] The outer side of the triangular reinforcing plate 21 is provided with a gripping handle 23. In this embodiment, the gripping handle 23 is provided to facilitate the movement of the entire tooling.

[0042] The bottom support plate 1 and the vertical support plate 2 are made of aviation aluminum and have a hollow design, which reduces the weight of the device while ensuring structural strength.

[0043] The above-described embodiments are merely illustrative of certain implementations of this utility model, and their descriptions are relatively specific and detailed. However, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A CVT transmission housing inspection fixture, characterized in that: Includes a bottom support plate (1), a vertical support plate (2) is fixedly connected to the top rear side of the bottom support plate (1), at least three clamping fixtures (3) and at least one auxiliary positioning fixture (4) are distributed along the circumferential direction on the inner side of the vertical support plate (2), and at least one adjustable support fixture (5) is provided on the bottom support plate (1). The auxiliary positioning fixture (4) includes a fixedly installed limiting pin (6) that abuts against the gearbox housing to provide support and positioning to its side.

2. The CVT transmission housing inspection fixture according to claim 1, characterized in that: The clamping fixture (3) is provided in three parts, one on each side of the bottom and one on the top, arranged in a triangle. The clamping fixture (3) includes a fixing block (31). The fixing block (31) has an abutting protrusion at the contact point with the transmission housing. The side of the fixing block (31) is fixedly connected to the side of the vertical support plate (2). The outside of the fixing block (31) is connected to a quick clamp (32). The quick clamp (32) is used to apply a uniform clamping force to the side wall of the CVT transmission housing.

3. The CVT transmission housing inspection fixture according to claim 2, characterized in that: The adjustable support fixture (5) has an L-shaped support groove (33) on the fixed block (31) symmetrically arranged. The bottom of the L-shaped support groove (33) is connected to the first support column (34) for supporting the other end of the transmission housing.

4. The CVT transmission housing inspection fixture according to claim 1, characterized in that: The adjustable support fixture (5) includes a support block (51) and a height-adjustable locking bolt pad (52).

5. The CVT transmission housing inspection fixture according to claim 1, characterized in that: The vertical support plate (2) is provided with a triangular reinforcing plate (21) and a reinforcing fixing plate (22) on both sides respectively.

6. The CVT transmission housing inspection fixture according to claim 5, characterized in that: The triangular reinforcing plate (21) is provided with a gripping handle (23) on its outer side.

7. The CVT transmission housing inspection fixture according to claim 1, characterized in that: The bottom support plate (1) and the vertical support plate (2) are made of aviation aluminum and have a hollow design.

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