SU1754313A1 - Riveting apparatus - Google Patents

Abstract

The use of mechanical engineering is for joining sheet metal parts when assembling large-sized panels with rivets in a slipway. SUMMARY OF THE INVENTION 1 A rivet is inserted into the hole of a package of parts, and a support rod is inserted into the next, which is inserted between the claws of the gripping unit. The latter is regulated by means of a relief valve, and the height of the closing head is adjusted by means of a screw 4 or

Description

The invention relates to riveting and jointing works, in particular to riveting devices for riveting large-sized panels in the stocks.

A riveting hammer is known, containing a barrel located in the body with a stepped impact head located in it with the possibility of reciprocating movement, as well as a trigger mechanism

A riveting device is known, comprising a riveting hammer mounted on the base for movement along the riveting axis, as well as crimped support connected to the base through a fastener and an actuator cooperating with the support

A disadvantage of the known devices is that they are a multi-impact mechanism that does not provide high quality riveting. In addition, there is no mechanism for adjusting the height of the locking head, and the compressive force of the package is not adjustable.

The closest in its essence to the invention is a riveting device, comprising a housing in which support and crimping with a drive in the form of a power cylinder are coaxially mounted, and a mechanism for squeezing a package of riveted parts, made in the form of a drive rod, connected floating crackers

A disadvantage of the known device is that the wiring is not controlled, and the riveting force is controlled only by the hydraulic pump, which reduces the quality of the riveting.

The aim of the invention is to improve the quality of riveting.

The goal is achieved by the fact that in a riveting device comprising a body in which are coaxially mounted under

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holding and crimping with a drive in the form of a power cylinder and a mechanism for compressing a package of riveted parts, equipped with two chambers with an adjustable relief valve located in the lower part of the support, and an adjusting screw installed in the upper part of the crimping, chambers with an overflow valve provide for the compression of the package and By means of an adjusting screw, the height of the closing head is adjusted.

The riveting device contains a power cylinder 1, a piston 2 with a rod, made in the upper part of a circular section, and in the lower part - a square. By means of the cylindrical sleeve 3, the rod 4 is engaged, which engages with crackers 5 located in the conical support cavity. In the lower part of the support there is an accumulation chamber b, equipped with a relief valve 7 with an adjusting screw 8. The support also includes a punch 9, riveting rivet 10 and a working chamber 11.

An adjusting screw 12, a piston 13, is installed in the upper part of the crimp, which overlaps the channel 14 in the pipeline 15.

The device works as follows

A rivet 10 is inserted into the hole of the riveted packet, and a rod 4 is inserted into the next hole, which runs freely between the croutons 5. Working fluid is fed under the piston 2. Moving upward, the piston rod 2 rotates the sleeve 3 through 90 °. The rod 4, rigidly connected to the sleeve 3, also rotates 90 ° and engages the crackers 5 and moves the punch 9 upwards, which through the fluid in the chamber 11 acts on the wall of the housing and creates a force to compress the bag. The screw 8 sets the compressing force of the bag. Chambers 11 and b are filled with working fluid. When the rod 4 is pulled in, the liquid from chamber 11 begins to flow into chamber 6. The pressure difference between chambers 11 and 6 as the working fluid flows, created by the resistance of the bypass valve 7 due to the adjusting screw 8, determines the compressive strength of the blind package.

At the same time, the piston 13 opens the channel 14, the liquid through the pipeline 15 flows into the chamber above the piston 2. In the chambers above and below the piston 2 the pressure is balanced - the piston 2 stops,

Thereafter, fluid is supplied to the chamber above the piston 2 of the hydraulic cylinder 1, the piston 2 with the rod moves downwards (along the

scheme). The rod 4 is rotated and released from the engagement with the crackers 5. Crimp separates from the support. The required height of the locking head is set by turning the screw 12.

By turning the screw 12, the piston 13 is moved and the distance between the pistons 13 and 2 is established. Thus, the amount of overlap by the piston 13 of channel 14 changes. This overlap determines the moment

open channel 14, i.e. the stopping moment of the punch 9, which determines the height of the closing head of the rivet 10.

The application of the proposed device provides improved quality riveted joints.

Claims (1)

 Invention Formula Riveting device containing split housing in two parts, in which the support and crimping from the actuators in the form of a power cylinder are installed; made in the form of a drive rod associated with crimping by means of a gripping unit in the form of floating crackers, characterized in that, in order to improve the quality of the riveting by adjusting the compressive force of the bag and ensuring the height adjustment of the locking head, the part of the crimped body is equipped with two chambers and a pipeline with adjustable relief valve, while One chamber in the said part of the body is located on the side of the swage, and the second is located at the opposite end and is connected to the first through the said pipeline, and part of the body with support is provided an adjusting screw installed in the free end of the said part of the housing with the possibility of interaction with the piston rod of the power cylinder $ 1 // eight St .. eiewa THEM I GZh1 -m Ys / s 3