Special inspection tool for automobile gearbox shift hub size inspection

Abstract

The utility model discloses a special inspection tool for detecting the size of a shift hub of an automobile transmission, relates to the technical field of shift hub detection, and solves the technical problem that each size item of the shift hub of an automobile transmission is detected separately, thereby affecting the efficiency of size detection; it includes a tray, the tray is used to carry the shift hub, the tray includes a tray bottom and two arc steps, the two arc steps are symmetrically arranged on the top of the tray bottom, and the arc steps are arranged coaxially with the tray bottom; a base, the top of the base is provided with an upper slideway for the tray to slide; two limiters, the two limiters are installed on the top of the base near both sides, and the two limiters are symmetrically arranged about the upper slideway, and the limiters include a first column and a second column arranged front and back. The utility model facilitates the detection of three size items of the shift hub of an automobile transmission at one time, thereby greatly shortening the detection time and improving the efficiency of size detection of the shift hub.

Description

Technical Field

[0001] The utility model belongs to the technical field of shift hub detection, in particular to a special inspection tool for detecting the size of a shift hub of an automobile transmission case. Background Art

[0002] The shift hub of a car transmission is an important component in the transmission. It is mainly used to assist in transmitting power to the corresponding gear when the vehicle shifts gears. It usually works with the shift fork, synchronizer and other components to ensure smooth and accurate shifting. The design and working principle of the shift hub are crucial to ensuring the smooth operation of the transmission and the driving experience of the vehicle.

[0003] The dimensional accuracy of the shift hub directly affects the accuracy and reliability of the shift. If the size of the shift hub does not meet the requirements, it may not only cause problems such as difficult shifting, inadequate shifting or skipping, thus affecting the driving performance and safety of the vehicle, but also the shift hub with substandard size may produce excessive friction and wear during operation, leading to early failure. Therefore, in order to ensure the normal operation of the automobile gearbox and driving safety, the size detection of the shift hub is an indispensable link.

[0004] After the shift hub is processed, there are many dimensional items that need to be inspected, usually including the shift hub outer diameter dimension inspection, the shift hub head height inspection and the shift hub top height inspection. Each item must be inspected separately with special equipment, which takes time and effort, thus affecting the efficiency of the shift hub dimensional inspection. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a special inspection tool for automobile gearbox shift hub size inspection, which solves the problem that each size item of the automobile gearbox shift hub is inspected separately, thereby affecting the size inspection efficiency.

[0006] To achieve the above-mentioned purpose, according to the embodiment of the first aspect of the utility model, a special inspection tool for inspecting the size of a shift hub of an automobile transmission is provided, comprising:

[0007] A tray, the tray is used to carry the shift hub, the tray comprises a tray bottom and two arc-shaped steps, the two arc-shaped steps are symmetrically arranged on the top of the tray bottom, and the arc-shaped steps are arranged coaxially with the tray bottom;

[0008] A base, wherein the top of the base is provided with an upper slideway for the tray to slide;

[0009] Two limiting members, the two limiting members are installed at the top of the base near both sides, and the two limiting members are symmetrically arranged about the upper slideway, and the limiting members include a first column and a second column arranged front and back;

[0010] Two stoppers, the two stoppers are respectively installed on the top ends of the two first columns;

[0011] A horizontal column, wherein the bottom of the horizontal column near both ends is respectively connected to the top of the two second columns.

[0012] As a further technical solution of the utility model, the distance between the two limit members is used to detect the outer diameter of the shift hub, the distance between the stop block and the bottom of the disk is used to detect the height of the shift hub head, and the distance between the cross column and the bottom of the disk is used to detect the height of the top of the shift hub.

[0013] As a further technical solution of the utility model, a lower slide is provided at the bottom of the base, the lower slide is located directly below the upper slide, and a through groove is provided between the lower slide and the upper slide, a movable positioning bolt is provided in the through groove, and a threaded groove for the positioning bolt to be screwed into is provided at the bottom of the tray.

[0014] As a further technical solution of the present invention, the first column and the second column are integrally formed, and the cross-sections of the first column and the second column are equal.

[0015] As a further technical solution of the utility model, the upper surface of the bottom of the plate is flush with the upper surface of the base, and the cross-section of the stopper is larger than the cross-section of the first column.

[0016] As a further technical solution of the utility model, the disc bottom is symmetrically provided with cutout surfaces, the cutout surfaces are flush with the ends of the arc-shaped steps, and the distance between the two cutout surfaces is equal to the width of the upper slideway.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] In the utility model, the shift hub to be inspected is conveniently carried by the tray, the shift hub is conveniently limited by the arc-shaped step, the tray is pushed to conveniently drive the shift hub to move along the upper slideway of the base, the limiting member is used to cooperate with the stopper and the cross column to form a gauge for judging whether the shift hub can pass normally, the distance between the two limiting members is used to facilitate the inspection of the outer diameter of the shift hub, the distance between the stopper and the bottom of the disk is used to facilitate the inspection of the head height of the shift hub, and the distance between the cross column and the bottom of the disk is used to facilitate the inspection of the top height of the shift hub, thereby facilitating the one-time inspection of three size items of the shift hub, greatly shortening the inspection time, and being beneficial to improving the size inspection efficiency of the shift hub. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional diagram of a special inspection tool for inspecting the size of a shift hub of an automobile transmission of the utility model;

[0020] Figure 2This is a three-dimensional diagram of the tray in the special inspection tool for inspecting the size of the automobile gearbox shift hub of the utility model;

[0021] Figure 3 This is a three-dimensional diagram of the base of the special inspection tool for inspecting the size of the automobile gearbox shift hub of the utility model;

[0022] Figure 4 The utility model is a structural schematic diagram of the connection part between the tray and the base in the special inspection tool for inspecting the size of the automobile gearbox shift hub.

[0023] In the figure: 1, tray; 101, tray bottom; 102, arc-shaped step; 2, base; 3, upper slide; 4, limiter; 401, first column; 402, second column; 5, stopper; 6, horizontal column; 7, lower slide; 8, through groove; 9, positioning bolt; 10, cut surface. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely in conjunction with the embodiments below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] like Figure 1-4 As shown, a special inspection tool for detecting the size of a shift hub of a car transmission comprises a tray 1, a base 2, two limiting members 4, two stoppers 5 and a cross column 6. The tray 1 is used to carry the shift hub. The tray 1 comprises a tray bottom 101 and two arcuate steps 102. The two arcuate steps 102 are symmetrically arranged on the top of the tray bottom 101, and the arcuate steps 102 are coaxially arranged with the tray bottom 101. The tray bottom 101 cooperates with the two arcuate steps 102 to not only facilitate carrying the shift hub to be inspected, but also facilitate limiting the shift hub. The tray bottom 101 is symmetrically provided with cutout surfaces 10, which are flush with the ends of the arcuate steps 102, so that the shift hub can be placed on the tray 1 and part of it can extend to the outside of the tray 1. The upper surface of the tray bottom 101 is flush with the upper surface of the base 2, so that the bottom of the shift hub carried on the tray bottom 101 can be in contact with the upper surface of the base 2.

[0026] An upper slide 3 for the tray 1 to slide is provided at the top of the base 2, and the distance between the two cutout surfaces 10 is equal to the width of the upper slide 3, so that the cutout surface 10 of the tray 1 can slide against the side wall of the upper slide 3, which is not only convenient for sliding guidance, but also can limit the rotational freedom of the tray 1, so that the tray 1 will not deflect in position when moving along the upper slide 3. A lower slide 7 is provided at the bottom of the base 2, and the lower slide 7 is located directly below the upper slide 3, and a through groove 8 is provided between the lower slide 7 and the upper slide 3, and a movable positioning bolt 9 is provided in the through groove 8. A threaded groove for the positioning bolt 9 to be screwed into is provided at the bottom of the tray 1. The positioning bolt 9 is used to prevent the tray 1 from jumping when moving along the upper slide 3, and removing the positioning bolt 9 facilitates the separation of the tray 1 from the base 2.

[0027] Two limit members 4 are installed at the top of the base 2 near both sides, and the two limit members 4 are symmetrically arranged about the upper slide 3. The distance between the two limit members 4 is used to detect the outer diameter of the shift hub. The limit member 4 includes a first column 401 and a second column 402 arranged front and rear. The first column 401 and the second column 402 are integrally formed, and the cross-sections of the first column 401 and the second column 402 are equal. Two stoppers 5 are respectively installed at the tops of the two first columns 401. In this embodiment, the cross-section of the stopper 5 is larger than the cross-section of the first column 401. The distance between the stopper 5 and the disk bottom 101 is used to detect the height of the shift hub head. The bottoms of the cross column 6 near both ends are respectively connected to the tops of the two second columns 402, and the distance between the cross column 6 and the disk bottom 101 is used to detect the height of the top of the shift hub.

[0028] The working principle of the utility model is as follows: the shift hub to be tested is placed on the tray 1, and the tray bottom 101 and the two arc-shaped steps 102 are used to limit the shift hub to be tested, and the tray 1 is pushed so that its cut surface 10 slides against the side wall of the upper slideway 3 to ensure that the tray 1 does not deflect in the process of movement. During the movement of the shift hub, the outer diameter of the shift hub can be detected by using the distance between the two limiting members 4, the head height of the shift hub can be detected by using the distance between the stopper 5 and the tray bottom 101, and the top height of the shift hub can be detected by using the distance between the cross column 6 and the tray bottom 101. If the shift hub fails to pass between the two limiting members 4 during the movement, its outer diameter exceeds the standard, if the shift hub is blocked by the stopper 5 during the movement, its head height exceeds the standard, and if the shift hub is blocked by the cross column 6 during the movement, its top height exceeds the standard, so that the three size items of the shift hub can be detected at one time, which is beneficial to shorten the detection time and improve the detection efficiency.

[0029] The above embodiments are only used to illustrate the technical method of the utility model rather than to limit it. Although the utility model is described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical method of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the utility model.

Claims

1. A special inspection tool for automobile gearbox shift hub size detection, characterized in that: include: A tray (1), the tray (1) being used to carry a shift hub, the tray (1) comprising a tray bottom (101) and two arc-shaped steps (102), the two arc-shaped steps (102) being symmetrically arranged on the top of the tray bottom (101), and the arc-shaped steps (102) and the tray bottom (101) being arranged coaxially; A base (2), wherein the top of the base (2) is provided with an upper slideway (3) for the tray (1) to slide; Two limiting members (4), the two limiting members (4) being installed on the top of the base (2) near both sides, and the two limiting members (4) being symmetrically arranged with respect to the upper slideway (3), and the limiting members (4) comprising a first column (401) and a second column (402) arranged front and rear; Two stoppers (5), the two stoppers (5) being respectively mounted on the top ends of the two first uprights (401); A transverse column (6), wherein the bottom of the transverse column (6) near both ends is respectively connected to the top of the two second upright columns (402).

2. The special inspection tool for detecting the size of the automobile transmission shift hub according to claim 1 is characterized in that: The distance between the two limit members (4) is used to detect the outer diameter of the shift hub, the distance between the stop block (5) and the disc bottom (101) is used to detect the height of the shift hub head, and the distance between the cross column (6) and the disc bottom (101) is used to detect the height of the shift hub top.

3. The special inspection tool for detecting the size of the automobile transmission shift hub according to claim 1 is characterized in that: The bottom of the base (2) is provided with a lower slide (7), the lower slide (7) is located directly below the upper slide (3), and a through groove (8) is provided between the lower slide (7) and the upper slide (3), a movable positioning bolt (9) is provided in the through groove (8), and the bottom of the tray (1) is provided with a threaded groove for the positioning bolt (9) to be screwed in.

4. The special inspection tool for detecting the size of the automobile transmission shift hub according to claim 1, characterized in that: The first column (401) and the second column (402) are integrally formed, and the cross-sections of the first column (401) and the second column (402) are equal.

5. The special inspection tool for detecting the size of the automobile transmission shift hub according to claim 1, characterized in that: The upper surface of the tray bottom (101) is flush with the upper surface of the base (2), and the cross-section of the stopper (5) is larger than the cross-section of the first column (401).

6. The special inspection tool for detecting the size of the automobile transmission shift hub according to claim 1, characterized in that: The disc bottom (101) is symmetrically provided with cutout surfaces (10), the cutout surfaces (10) are flush with the ends of the arc-shaped steps (102), and the distance between the two cutout surfaces (10) is equal to the width of the upper slideway (3).

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