CN205002707U - Utensil is tested in special use of rear axle leaf spring bracket aperture centre -to -centre spacing - Google Patents

Abstract

The utility model discloses a special inspection tool for the center distance of the support hole of the steel plate spring of the rear axle, which comprises a support plate, a fixed positioning column and an adjustable positioning column. One end of the support plate is vertically fixed with a fixed positioning column, and the other end is processed with a long strip. Shaped chute, the bottom of the chute is processed with a strip hole, the upper end of the adjustable positioning column is fixedly connected with a slider, and the upper column is processed with external threads, and the adjustable positioning column passes through the strip hole vertically and is connected with the fastening nut . The utility model adopts the positioning column to extend the center point of the bracket hole to a certain height, which can be measured with a conventional measuring tool, and overcomes the problem of interference of the axle housing; one of the positioning columns is an adjustable positioning column, which effectively simplifies the positioning of the bracket holes. The process of group hole distance measurement greatly improves the measurement work efficiency; the utility model has simple structure and convenient operation, can meet the needs of hole distance measurement with different specifications, has high measurement efficiency and precision, and has good popularization and application value.

Description

A special test tool for the center distance of the rear axle leaf spring support hole center distance

technical field

The utility model relates to the technical field of inspection tools for auto parts, in particular to a special inspection tool for the center distance of the center-to-center distance of a rear axle leaf spring bracket hole.

Background technique

At present, most of the trucks use leaf springs as the shock absorption system to improve the stability of the vehicle during driving. In order to install the leaf spring, it is usually necessary to set the leaf spring bracket on the axle. In order to ensure the stability and service life of the leaf spring after assembly, it is required that the center distance deviation between the leaf spring bracket and the bracket hole after welding the rear axle housing should not be greater than 1mm. However, in the actual manufacturing process, due to the interference of the axle housing, it is difficult to measure the hole spacing accurately with conventional rulers, tape measures and calipers, and the measured or converted values are also incorrect. It is assembled and welded by multiple parts, and certain welding deformation will inevitably occur during the manufacturing process. Therefore, before the axle housing assembly is used for assembly, the hole spacing must be accurately measured to avoid subsequent repairs.

Contents of the invention

The purpose of the utility model is to provide a special inspection device for the distance between the centers of the holes of the rear axle leaf spring bracket, which is simple in structure, easy to operate, and can meet the needs of measuring hole distances of different specifications.

The purpose of this utility model is achieved in this way, comprising a support plate, a fixed positioning column and an adjustable positioning column, one end of the support plate is vertically fixed with a fixed positioning column, the other end is processed with a strip-shaped chute, and the bottom of the chute is processed with a The bar-shaped hole, the upper end of the adjustable positioning post is fixedly connected with a slider, the upper section of the adjustable positioning post is processed with external threads, and the adjustable positioning post vertically passes through the bar-shaped hole and is threadedly connected with the fastening nut. A scale line is marked on the support plate, and the initial scale of the scale line is set at the center of the fixed positioning post. A measured value pointer is arranged on the upper surface of the chute, and the position of the measured value pointer is the center position of the adjustable positioning post.

The utility model adopts the positioning column to extend the center point of the bracket hole to a certain height, and the measurement of the hole distance can be realized by conventional measuring tools such as a ruler, which overcomes the problem of interference of the axle housing and realizes the accurate measurement of the hole distance; in addition By setting one of the positioning columns as an adjustable positioning column that can slide freely on the bracket plate, the process of measuring the distance between each group of holes on the bracket hole is effectively simplified, and the measurement work efficiency is greatly improved; the utility model has simple structure and convenient operation , which can meet the measurement needs of hole distances of different specifications, has high measurement efficiency and precision, and has good popularization and application value.

Description of drawings

Fig. 1 is the longitudinal centerline sectional structure schematic diagram of the utility model;

Fig. 2 is the top view of the utility model;

Fig. 3 is the schematic diagram of the utility model measuring the maximum hole spacing state;

Fig. 4 is the schematic diagram of the utility model measuring the state of minimum hole spacing;

In the figure: 1-fixed positioning column, 2-bracket plate, 3-strip hole, 4-sliding slot, 5-adjustable positioning column, 6-fastening nut, 7-slider, 8-initial scale, 9-measurement value pointer, 10-scale line, 11-leaf spring bracket, 12-rear axle housing.

detailed description

The utility model will be further described below in conjunction with the accompanying drawings, but the utility model is not limited in any way. Any changes or improvements made based on the teaching of the utility model all belong to the protection scope of the utility model.

As shown in Figures 1-4, the utility model includes a support plate 2, a fixed positioning column 1 and an adjustable positioning column 5. One end of the support plate 2 is vertically fixed with a fixed positioning column 1, and the other end is processed with a strip-shaped chute. 4. The bottom of the chute 4 is processed with a bar-shaped hole 3, the upper end of the adjustable positioning column 5 is fixedly connected with a slider 7, the upper column of the adjustable positioning column 5 is processed with external threads, and the adjustable positioning column 5 passes through the bar vertically. After the shaped hole 3 is threaded with the fastening nut 6. The size of the slide block 7 is matched with the chute 4, and the gap between the edge of the slide block 7 and the chute 4 is 0.5-1mm, and the slide block 7 can freely and stably reciprocate on the chute 4. The width of the strip hole 3 is 0.1-0.3mm larger than the outer diameter of the adjustable positioning column 5, and the length of the strip hole 3 can be determined according to the difference between the maximum spacing and the minimum spacing of the workpiece to be measured. When in use, first insert the fixed positioning column 1 into one of the holes to be measured and fix it, then move the adjustable positioning column 5 to the position of another measuring hole by sliding the slider 7 in the chute 4, and then move the adjustable positioning column 5 After inserting into the measuring hole, tighten the fastening nut 6 to fix the adjustable positioning column 5 and the bracket plate 2. At this time, measure the center point of the upper end of the fixed positioning column 1 and the adjustable positioning column 5 to obtain the leaf spring bracket The distance between the centers of the two holes on the 11 avoids the interference of the rear axle housing 12.

Further, the bracket plate 2 is marked with a scale line 10 , and the initial scale 8 of the scale line 10 is set at the center of the fixed positioning column 1 . A measured value pointer 9 is arranged on the upper surface of the chute 4 , and the position of the measured value pointer 9 is the center position of the adjustable positioning post 5 . The support plate 2 has assumed the function of a ruler simultaneously, and after the adjustable positioning column 5 is fixed, the numerical value of the center distance can be read out on the support plate 2 immediately, which is simple, convenient and quick.

Preferably, the lower ends of the fixed positioning column 1 and the adjustable positioning column 5 are conical, and when the positioning column is assembled with the hole to be measured, it can be automatically centered.

For the convenience of assembly, carrying and adjustment, the fixed positioning column 1 and the support plate 2 can be screwed, fixed by welding or riveted.

In order to ensure measurement accuracy, the gap between the fixed positioning column 1 and the adjustable positioning column 5 and the workpiece hole to be measured is controlled to be 0.05-0.1mm after assembly.

Claims (6)

1. A special inspection tool for the center distance of the rear axle leaf spring support hole, which is characterized in that it includes a support plate (2), a fixed positioning column (1) and an adjustable positioning column (5), and one end of the support plate (2) is vertical The fixed positioning column (1) is fixedly installed, and the other end is processed with a long chute (4), the bottom of the chute (4) is processed with a strip hole (3), and the upper end of the adjustable positioning column (5) is fixedly connected with a The slide block (7), the upper section cylinder of the adjustable positioning post (5) is processed with external thread, and the adjustable positioning post (5) is threadedly connected with the fastening nut (6) after passing through the strip hole (3) vertically. 2. A special inspection tool for the center distance of the rear axle leaf spring bracket hole according to claim 1, characterized in that: the bracket plate (2) is marked with a scale line (10), and the scale line (10) is The initial scale (8) is set at the center of the fixed positioning column (1). 3. A special inspection tool for the center distance of the rear axle leaf spring bracket hole according to claim 2, characterized in that: the upper surface of the chute (4) is provided with a measured value pointer (9), the measured value pointer The position of (9) is the center position of the adjustable positioning column (5). 4. A special inspection tool for the center distance of the rear axle leaf spring bracket hole according to claim 1, characterized in that: the lower ends of the fixed positioning column (1) and the adjustable positioning column (5) are conical. 5. A special testing tool for the center distance of the rear axle leaf spring support hole according to claim 1, characterized in that: the fixed positioning column (1) and the support plate (2) are threaded. 6. A special inspection tool for the center distance of the rear axle leaf spring bracket hole according to claim 1, characterized in that: the cylinder of the fixed positioning column (1) and the adjustable positioning column (5) and the workpiece to be measured The gap after hole assembly is 0.05-0.1mm.