Two-point riveting and positioning method for aluminum warm air core body water pipe
A heater core and positioning method technology, which is applied in the field of aluminum heater core water pipe positioning, can solve the problems of low probability of detection, insufficient firmness of expansion, and changes in the position and size of water pipes.
Inactive Publication Date: 2011-04-20
TIANJIN YAXING RADIATOR
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Problems solved by technology
The existing tightening method mostly adopts the method of three-point tightening and positioning. When the working air pressure is not enough, it is easy to cause the tightening not to be strong enough, and the probability of being detected is extremely low, so that the water pipe can only be found after the welding is finished. Or there is a gap between the root of the pipe joint and the plane of the water chamber or the position and size of the water pipe change
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0006] The present invention will be further described below in conjunction with the accompanying drawings.
[0007] The present invention is carried out according to the following steps: firstly, the water pipe or the pipe joint is pre-installed in the flange hole of the water chamber, placed in the mold for riveting, positioned and clamped, and the punch with a 2-edged structure is pushed down by the cylinder Pressure, the pressure value of the supply cylinder is 4 kgf, to realize the pressure profile positioning of the water pipe or pipe joint and the flange hole of the water chamber.
[0008] In the present invention, the original punch with 3 blades is changed into a 2-blade structure. The pressure value provided by the air source required by the 3-blade punch to the cylinder needs to be greater than 5kgf (kilogram force), while the 2-blade punch only needs 4kgf to achieve Pressing and positioning of water pipes or pipe joints and flange holes of water chambers.
[0009]...
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The invention discloses a two-point riveting and positioning method for an aluminum warm air core body water pipe, which has the advantages of simpler process and firmer positioning. The two-point riveting and positioning method for the aluminum warm air core body water pipe comprises the following steps of: preassembling a water pipe or a pipe joint in a water chamber flanged hole; positioning and clamping the water pipe or the pipe joint in a clamping fixture for riveting; and pushing and pressing a punch head with a two-blade structure by using a cylinder, wherein the value of pressure applied to the cylinder is 4 kilograms of force, so compressing and positioning of the water pipe or the pipe joint and the water chamber flanged hole are realized. The method has a simpler process and makes positioning firmer, and a two-point expansion structure can also have an expansion effect.
Description
technical field [0001] The invention relates to the field of positioning aluminum heater core water pipes, and more specifically relates to a two-point riveting positioning method for aluminum heater core water pipes. Background technique [0002] The water pipes, pipe joints and water chambers are connected in the way of expansion and tightening. This connection plays the role of fixing the water pipes or pipe joints on the water chamber. Whether the positioning is firm or not depends on whether the contact between the water chamber and the water pipes or pipe joints is good. key. At the same time, it is a decisive factor to ensure that the position and size of the overall brazed water pipe meet the design requirements. The existing tightening method mostly adopts the method of three-point tightening and positioning. When the working air pressure is not enough, it is easy to cause the tightening not to be strong enough, and the probability of being detected is extremely lo...
Claims
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Inventor 崔书晨
Owner TIANJIN YAXING RADIATOR