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Rim flaring technological method and device
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A process method and rim technology, which are applied in the field of extrusion molding process and equipment, can solve the problems of easy wear of the mold, low production efficiency, deviation of the position accuracy of the upper and lower molds, etc., and achieve high flaring surface quality, improve production efficiency, and expand The effect of force equalization
Active Publication Date: 2017-06-30
ZHEJIANG JINGU CO LTD
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[0002] After the welding is completed, the rim needs to be flared to facilitate the subsequent rolling process. The traditional method is to flaring the two ends of the rim through the vertical relative movement of the mold. Due to the long movement distance between the upper and lower molds (including the distance of mold clamping action and the reserved clearance for picking and placing workpieces), the position accuracy deviation of the upper and lower molds, and the degree of wear of the upper and lower molds is inconsistent (due to the different sizes and slopes of the two ends of the rim, the two ends bear different strengths , leading to different degrees of wear on the upper and lower molds), the vibration of the power that drives the movement of the upper and lower molds, etc., resulting in poor precision, low consistency, and unsatisfactory surface quality of the workpieces in mass production. The mold is easy to wear and the production efficiency is low. and other defects
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Embodiment 1
[0035] Embodiment 1: a kind of process method of rim flaring of the present invention:
[0036] 1) Insert the welded rim workpiece axially into the flaring block 3, so that the two ends of the rim workpiece reach the position where the first slope 41 and the second slope 42 are located, until they abut against the limit block 6;
[0037] 2) The tapered shaft extends out, driving the flaring block 3 to move radially outward, the first inclined plane 41 and the second inclined plane 42 located at both ends of the flaring block 3 press the two ends of the rim workpiece, and the workpiece is flared until it is flared to the required size;
[0038] 3) The tapered shaft is retracted and the workpiece is taken out.
[0039] In the flaring blocks in the ring row, a channel 8 is set on the upper one, and the butt welding position of the workpiece corresponds to the expanding block, and it is sealed on the outside of the workpiece flare; after the tapered shaft 1 is stretched out, the ...
Embodiment 2
[0040] Embodiment 2: A kind of rim flaring device of the present invention, as attached figure 1 , attached figure 2 , attached image 3 , attached Figure 4 shown, which includes:
[0041] The base has a cage; the cage is a cylinder, the center of the cylinder has a shaft hole, and several bar-shaped grooves are arranged on the circumferential wall;
[0042] The tapered shaft 1, which moves axially in the shaft hole of the cage under the drive of external power, has a tapered head with a tapered diameter;
[0043] Several positioning blocks 2 slide radially in the bar-shaped groove of the cage, the root of the positioning block shrinks into a bar shape, the bar-shaped part forms a sliding fit with the bar-shaped groove, and the bottom surface of the bar-shaped part is against the tapered shaft 1 on the outer circumference of the tapered head; when the tapered shaft 1 moves axially, the positioning block 2 slides radially;
[0044] The flaring block 3 fixed on the positi...
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Abstract
The invention relates to a rim flaring technological method which comprises the following steps: (1), a welded rim workpiece is arranged in a flaring block in the axial direction in a sleeving manner to enable the two ends of the rim workpiece to reach positions of a first oblique plane and a second oblique plane until the two ends are propped against a limiting block; (2) a tapered shaft stretches out to drive the flaring block to move outwards in the radial direction, the first oblique plane and the second oblique plane at the two ends of the flaring block extrude the two ends of the rim workpiece to carry out flaring on the workpiece until the flaring size meets the requirement; and (3) the tapered shaft retracts and the workpiece is taken out. The rim flaring technological method has the following beneficial effects: 1, the two ends of the rim are extruded in the radial direction to form flarings; compared with the traditional axial up-down extrusion forming manner, the formed workpiece obtained by applying the rim flaring technological method is higher in precision, consistency and surface quality, a die is unlikely to wear, and the production efficiency is higher; and 2, whether the flaring cracks can be detected when the flaring deforms.
Description
technical field [0001] The invention relates to an extrusion molding process and equipment, in particular to a process method and device for flaring a wheel rim. Background technique [0002] After the welding is completed, the rim needs to be flared to facilitate the subsequent rolling process. The traditional method is to flaring the two ends of the rim through the vertical relative movement of the mold. Due to the long movement distance between the upper and lower molds (including the distance of mold clamping action and the reserved clearance for picking and placing workpieces), the position accuracy deviation of the upper and lower molds, and the degree of wear of the upper and lower molds is inconsistent (due to the different sizes and slopes of the two ends of the rim, the two ends bear different strengths , leading to different degrees of wear on the upper and lower molds), the vibration of the power that drives the movement of the upper and lower molds, etc., result...
Claims
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Application Information
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