RU1796369C - Device for assembling finned tubes of heat exchangers - Google Patents

Abstract

Usage: assembly of fin heat exchangers radiators. SUMMARY OF THE INVENTION: the device comprises a bed made in the form of plates spaced apart by racks and a slider mounted on one of the racks with the possibility of moving along it. The device also includes a pipe fixing and centering mechanism made in the form of a rod with a conical tip and a feed and positioning mechanism for rib blanks pivotally mounted on the slide. The arrangement mechanism is made in the form of a gear rack, ratchet with a dog, installed with the possibility of interaction with the gear rack. The design of the device includes travel stops, a pusher and an emphasis. In this case, one of the travel stops is fixed on the gear rack and is installed with the possibility of interaction with the pusher, the other stop is fixed on the plate and interacts with the stop. 4 ill.

Description

The invention relates to mechanical engineering, and more particularly to assembly operations in the manufacture of finned heat exchanger tubes.

The aim of the invention is to increase productivity by automating the assembly process.

Fig. 1 shows a device for assembling finned tubes of heat exchangers, general view; figure 2 is a section aa in figure 1; in Fig.Z - section bB in Fig.1; figure 4 - finned heat exchanger tube.

A device for assembling finned tubes of heat exchangers comprises a frame 1, a fixing and alignment mechanism 2 for pipes 3, a movement mechanism 4 for pipes 3, a feeding and spacing mechanism 5 for rib blanks 6. The device is equipped with a slider 7 with a plunger 8 and an abutment 9, as well as travel stops 10 the slider 7. The bed 1 is made in the form of plates 11 spaced from each other by the struts 12. The slider 7 is mounted for movement along the rack 12. The fixing and centering mechanism 2 of the pipes 3 is made in the form of a rod 13 with a conical tip 14 and a hinge о is fixed on the slider 7. The arrangement of 5 rib blanks 6 is made in the form of a gear rack 15, a ratchet gear 16 with a dog 17. installed with possible interaction with gear rack 15. One of the travel stops 18 is mounted on gear rack 15 and installed with the ability to interact with the stop 9. Another travel stop 70 is mounted on the plate 11 with the possibility of interaction with the pusher 8.

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The device operates as follows.

The finning tube 3 is pre-coppered on the outer surface and secured in the mechanism 5 by putting on a pivotally suspended rod 13 with a conical tip 14, rib blanks 6 which are inserted into the socket of the slider 7, which is installed in its highest position. The device is adjusted to the step of the rib blanks on the tube 3 due to the gear rack 15, ratchet 16 and spring-loaded dog 17.

The travel stop 10 on the rail 15 is set to its lowest position and secured to the latter. They include a drive mechanism 4 and simultaneously a vibratory hopper. The rib blank 6 enters the nest - the lodgment in the bottom plate 11, and the tube 3 with the conical tip 14 and the rod 13 inside passes through the rib blank 6, stringing on the tube 3 until the lower stop 9 of the slide 7 touches the microswitch directly of the (working) stroke on the bracket of the gear rack 15. The drive of the movement mechanism 4 switches to the reverse stroke and the slider 7 together with the tube 3 and the strung rib 6 goes up until the pusher 8 pushes the spring-loaded dog 17 one step of the ratchet 16, equal to the step between ribs on t cabin. The ratchet 16 rotates one step and, when interacting with the gear and the rack, raises the latter one step up, and the travel limiter 10c fastened to it with a micro switch also rises by a step. Thus, the stroke of the slider is shortened by one step, and so on, until the desired number of ribs is dialed. When the slide 7 moves up, the stepping mechanism is triggered at the first moment, and when the slide moves further up, the upper adjustable stop 18 presses the micro switch 19 of the reverse (idle) stroke

and the direct (running) stroke is turned on, i.e. the tube 3 with the slider 7 goes down to the next point of the travel stop 10 on the rail 15 .. Thus, as the string

ribs 6 onto the tube 3, the stroke of the slider is shortened by a step 7 times, and the process continues continuously until all ribs on the tube are fully set.

Thus, the expected technique.

the economic effect in comparison with the base object is ensured by increasing productivity while improving quality, simplifying the design and expanding the sizes in automatic mode.

Claims (1)

SUMMARY OF THE INVENTION A device for assembling finned tubes of a heat exchanger comprising a bed, a mechanism for securing and aligning the pipes, a mechanism for moving the pipe, mechanisms for feeding and arranging rib blanks, characterized in that, in order to increase productivity by automating the assembly process, the device is equipped with a slider with a pusher and emphasis, the stroke limiters of the slider, the bed is made in the form of plates, spaced apart from each other by the racks, the slider is installed on one of them with the possibility of movement along the rack, the mechanism for fixing and centering the pipes is made in the form of a rod with a conical tip and is pivotally mounted on a slider, the arrangement mechanism rib blanks are made in the form of a gear rack, ratchet with a dog installed with the possibility of interaction with the gear rack, one of the organizers of the stroke is mounted on the gear rack and installed with the possibility of interaction with the pusher, the other limiter is mounted on the plate with the possibility of interaction with the emphasis. FIG. J