Symmetry degree testing fixture for asymmetric position

Abstract

The utility model relates to the technical field of automobile synchronizers, and discloses a symmetry degree testing fixture for asymmetric positions, which comprises a base provided with a platform used for supporting a sliding sleeve; the sliding sleeve comprises a sleeve body, and grooves are formed in the two sides of the sleeve body. The radial limiting part is used for radially fixing the sliding sleeve; the detection part comprises a fixed unit and a movable unit, and the fixed unit comprises an axial limiting piece; the movable unit comprises a stand column and a detection piece, the stand column is slidably connected to the detection piece, the detection piece is installed on the base, and the sliding direction of the detection piece is parallel to the arrangement direction of the axial limiting piece; the width of the axial limiting piece is the same as that of the groove; and the width of the groove is smaller than that of the groove. According to the utility model, the detection part is arranged, so that the sliding sleeve can be quickly detected and judged; the method is simple and high in efficiency; moreover, the whole testing fixture is simple in structure, can be manufactured by only several steel plates, is low in cost, and is easy to popularize and use.

Description

Technical Field

[0001] This utility model relates to the field of automotive synchronizer technology, specifically, it is a symmetry gauge for asymmetrical positions. Background Technology

[0002] A synchronizer is a key component in a manual transmission, primarily used to match the rotational speeds of different gears during gear shifting, thus achieving smooth gear changes. The synchronizer works on the basis of friction, gradually changing the gear speeds by meshing with them until they reach the same speed, allowing for smooth gear engagement. This prevents gear collisions during shifting, reduces wear, and improves shift smoothness.

[0003] Some components in automotive synchronizer assemblies are structurally symmetrical, such as gear hubs, gear sleeves, and sliding sleeves. Sliding sleeves are one type of symmetrical component (e.g.,...). Figure 5 The product has grooves 202 on both end faces; these two grooves 202 must be symmetrical in the 180° direction, i.e., 180°±8° (e.g., Figure 4 ).

[0004] Currently, the symmetry of these two grooves can only be measured using a coordinate measuring machine (CMM). This is because the two grooves of the sliding sleeve are not on the same plane and are rotated 180° relative to each other. Conventional measuring tools (vernier calipers, micrometers, etc.) cannot be used, making the inspection process not only cumbersome but also inefficient. Utility Model Content

[0005] The purpose of this invention is to provide a symmetry gauge for asymmetrical positions, thereby solving the problem that the current symmetry testing procedures for similar sliding sleeve products are cumbersome and inefficient.

[0006] This utility model is achieved through the following technical solution: a symmetry gauge for asymmetrical positions, comprising:

[0007] The base has a platform on it to support the sliding sleeve; the sliding sleeve includes a sleeve body with grooves on both sides.

[0008] The radial limiting part is used to radially fix the sliding sleeve;

[0009] The detection unit includes a fixed unit and a movable unit. The fixed unit includes an axial limiting piece. The movable unit includes a column and a detection piece. The column is slidably connected to the detection piece, and the detection piece is mounted on the base. The sliding direction of the detection piece is parallel to the setting direction of the axial limiting piece. The width of the axial limiting piece is the same as the width of the groove. The width of the groove is less than the width of the groove.

[0010] To better realize this utility model, a spring is further provided between the detection plate and the column, and the spring causes the detection plate to tend to move away from the axial limiting plate.

[0011] To better realize this utility model, the radial limiting part further includes a radial limiting post, the outer diameter of which is the same as the inner diameter of the sleeve.

[0012] To better realize this utility model, the axial limiting plate, the column, and the radial limiting column are all mounted on the base by screws.

[0013] Compared with the prior art, this utility model has the following advantages and beneficial effects:

[0014] (1) By setting up a detection unit, this utility model can quickly detect and judge the sliding sleeve; it is not only simple and efficient; but also the entire inspection fixture has a simple structure, which can be made with only a few steel plates, and the cost is low, making it easy to promote and use.

[0015] (2) By setting a detachable connection, this utility model enables all parts to be quickly replaced according to the specifications of the actual tested sliding sleeve. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the working structure of this utility model.

[0017] Figure 2 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 3 This is a cross-sectional view of the structure in the working state of this utility model.

[0019] Figure 4 This is a top view of the structure of this utility model in its working state.

[0020] Figure 5 This is a schematic diagram of the sliding sleeve structure.

[0021] Wherein: 101-base; 102-axial limiting piece; 103-column; 104-detection piece; 105-radial limiting piece; 2-sliding sleeve; 201-sleeve body; 202-groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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 based on the specific circumstances.

[0024] Example 1:

[0025] This embodiment provides a symmetry gauge for asymmetrical positions, specifically as follows: Figures 1-5 As shown, it includes:

[0026] The base 101 has a platform on it for supporting the sliding sleeve 2; the sliding sleeve 2 includes a sleeve body 201, and grooves 202 are provided on both sides of the sleeve body 201.

[0027] The radial limiting part is used to radially fix the sliding sleeve 2;

[0028] The detection unit includes a fixed unit and a movable unit. The fixed unit includes an axial limiting piece 102. The movable unit includes a column 103 and a detection piece 104. The column 103 is slidably connected to the detection piece 104. The detection piece 104 is mounted on the base 101. The sliding direction of the detection piece 104 is parallel to the setting direction of the axial limiting piece 102. The width of the axial limiting piece 102 is the same as the width of the groove 202. The width of the groove 202 is less than the width of the groove 202.

[0029] During use, ensure that the detection piece 104 is positioned on the column 103 away from the axial limiting piece 102. The operator holds the sleeve 201 and places it on the base 101, then uses the radial limiting part to limit the sleeve 201. One side of the groove 202 is engaged with the axial limiting piece 102, thus fixing the other side's groove 202. The operator then pushes the detection piece 104, causing it to approach the axial limiting piece 102. During this process, the detection piece 104 will move closer to the axial limiting piece 102. In a groove 202 away from the axial limiting piece 102, if the sliding sleeve 2 is a qualified product, the detection piece 104 should be smoothly inserted into the groove 202; if the sliding sleeve 2 is unqualified, the detection piece 104 will be unable to be pushed forward due to the interference of the sleeve 201, and thus cannot be inserted into the groove 202. This method can quickly detect and judge the sliding sleeve 2; it is not only simple and efficient, but also the entire inspection fixture has a simple structure, requiring only a few steel plates to make, thus the cost is low and it is easy to promote and use.

[0030] Example 2:

[0031] This embodiment further extends the above embodiment, specifically as follows: Figure 3 As shown, a spring is provided between the detection piece 104 and the column 103. The spring causes the detection piece 104 to tend to move away from the axial limiting piece 102. By providing the spring, when the operator releases the detection piece 104, it will return to its original position under the action of the spring. At this time, the detection piece 104 is no longer above the sliding sleeve 2, making it easier for the operator to remove the sliding sleeve 2. Furthermore, when placing a sliding sleeve 2, the operator does not need to adjust the position of the detection piece 104, further improving the detection efficiency.

[0032] The radial limiting part includes a radial limiting post 105, the outer diameter of which is the same as the inner diameter of the sleeve 201. The axial limiting plate 102, the column 103, and the radial limiting post 105 are all mounted on the base 101 with screws. The radial limiting post 105 supports the inner diameter of the sleeve 201 to ensure that the sleeve 201 cannot move radially. The detachable installation method allows the axial limiting plate 102, the column 103, and the radial limiting post 105 to be quickly replaced according to the specifications of the actual tested sliding sleeve 2; similarly, if the testing plate 104 is worn, it can also be quickly replaced.

[0033] The other parts of this embodiment are the same as those in the above embodiments, and will not be described again.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Any simple modifications or equivalent changes made to the above embodiments based on the technical essence of the present utility model shall fall within the protection scope of the present utility model.

Claims

1. A symmetry gauge for asymmetrical positions, characterized in that, include: A base (101) is provided with a platform for supporting the sliding sleeve (2); the sliding sleeve (2) includes a sleeve body (201), and grooves (202) are provided on both sides of the sleeve body (201); The radial limiting part is used to radially fix the sliding sleeve (2); The detection unit includes a fixed unit and a movable unit. The fixed unit includes an axial limiting piece (102). The movable unit includes a column (103) and a detection piece (104). The column (103) is slidably connected to the detection piece (104). The detection piece (104) is mounted on the base (101). The sliding direction of the detection piece (104) is parallel to the setting direction of the axial limiting piece (102). The width of the axial limiting piece (102) is the same as the width of the groove (202). The width of the groove (202) is smaller than the width of the groove (202).

2. The symmetry gauge for asymmetrical positions according to claim 1, characterized in that: A spring is provided between the detection piece (104) and the column (103), and the spring causes the detection piece (104) to tend to move away from the axial limiting piece (102).

3. A symmetry gauge for asymmetrical positions according to claim 1 or the sliding sleeve (2), characterized in that: The radial limiting part includes a radial limiting post (105), the outer diameter of which is the same as the inner diameter of the sleeve (201).

4. A symmetry gauge for asymmetrical positions according to claim 3, characterized in that: The axial limiting plate (102), the column (103), and the radial limiting column (105) are all mounted on the base (101) by screws.

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