RU2080577C1 - Air-tightness test bench - Google Patents

Abstract

FIELD: devices for air- tightness tests, applicable for detection of cracks in large-sized longitems such as vehicle drive axles. SUBSTANCE: the test bench has a bed carrying the item mounting and attachment members, block feeding the items to the working zone made in the form of carriage 11, whose rollers 12 are installed on adjustable and curvilinear guides 13, power drive made in the form of actuating cylinder 7 that is hinge-joined to the bed, rod 9 hinge-joined to the carriage, inclined guide 17, adjustable prismatic basing member 16 installed on the inclined guide. EFFECT: enhanced accuracy. 2 dwg

Description

 The invention relates to mechanical engineering, namely to testing the products for leaks, and can be used to detect the presence of cracks in the over-sized products such as automobile bridges.

A well-known stand for testing products for tightness, a bed, installed on it elements of installation and basing of products, a unit for supplying products to the working area, made in the form of a carriage mounted on rollers on guides, and a power drive pivotally connected to the carriage [1]
A significant drawback of the known stand is the limited technological capabilities, since it cannot be used for leak testing of large products such as automobile bridges.

There is also a stand for testing products for leaks, containing a bed, installed on it elements of installation and basing of products, a unit for supplying products to the working area, made in the form of a carriage mounted on rollers on guides, and a power drive pivotally connected to the carriage [2]
The well-known stand for testing products for leaks also has a significant drawback - limited technological capabilities that do not allow leak tests of large-sized products such as automobile bridges.

 The test bench for products for tightness contains a bed, installed on it elements of installation and basing of products, a unit for supplying products to the working area, made in the form of a carriage mounted on rollers on guides, and a power drive pivotally connected to the carriage.

 According to the invention, an inclined guide is inserted into it, an adjustable prismatic base element mounted on an inclined guide, the power drive is made in the form of a power cylinder pivotally mounted on a bed, the rod of which is connected to the carriage, and the guides are adjustable and curved.

 Figure 1 shows the proposed stand; figure 2 block supply of products, section.

 The test bench for products for tightness contains a frame 1, on which are installed the elements of installation and basing of products, made in the form of fixed racks 2, 3 with lodgements 4, 5, which are located coaxially relative to the limit axis of the stand. The stand is also equipped with a unit for supplying products to the working area, which is made as follows: on the bed 1 with the help of a hinge 6, a power drive 7 for supplying products 8 to the working area (test area) is fixed. The power drive 7 is made in the form of a power cylinder, on the rod 9 of which, with the help of a hinge 10, a movable carriage 11 is mounted, mounted by a block of rollers 12 on adjustable curved guides 13 with limiters 14 and 15 of the stroke of the block of rollers 12 and an adjustable prismatic base element 16 mounted on an inclined the guide 17 of the stationary rack 18. The stand also includes an air supply system 19 and a finger 20.

 Stand for testing products for tightness works as follows.

 In the initial position, the rod 9 of the actuator 7 and the carriage 11 connected to it by the hinge 10 with the roller block 12 are in the lowest position.

 The test product 8 is mounted on the tool holders 4 and 5, and then, using the finger 20, is pivotally connected to the stem 9 of the power drive.

 After air supply, the rod 8, moving up, rotates the test product 8 in the tool holders 4 and 5 and presses it against the prismatic base element 16. In this case, the actuator 7 occupies a working position, moving along the hinge 6. During the movement of the rod 9 up with it on adjustable curved guides 13 moves a movable carriage 11 with a block of rollers 12. In this way, a smooth rotation of the product 8.

 Then the operator visually checks the tightness of the product 8, which is filled with the working environment in the previous operation. After checking the product 8 for leaks, the tested product is removed from the installation and base elements.

 Using the stand of the proposed design allows to expand its technological capabilities due to the design of the unit for supplying products to the working area, and it can be used for leakproofness testing of large-sized products such as automobile bridges.

Claims (1)

 A test bench for products for tightness, comprising a bed, elements for installing and basing products installed on it, a unit for supplying products to the working area, made in the form of a carriage mounted on rollers on guides, and a power drive pivotally connected to the carriage, characterized in that it introduced an inclined guide, an adjustable prismatic base element mounted on an inclined guide, the power drive is made in the form of a power cylinder pivotally mounted on a bed, the rod of which is connected n with a carriage, and the guides are made adjustable and curved.

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