Machining method for elongated supporting piece and machining clamp device
A processing method and fixture device technology, applied in the direction of support, positioning device, manufacturing tools, etc., can solve the problems of difficult step positioning processing, easy deformation, etc.
Pending Publication Date: 2021-10-15
GUIZHOU JONYANG KINETICS
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Problems solved by technology
[0002] In a kind of slender supporting member used, the blank is a medium carbon alloy steel bar, and the blank is slender, and its aspect ratio reaches 20, but after the blank is processed to the slender supporting member (a A slender support such as figure 1 As shown), there will be steps on the upper and lower sides and the parallelism of the upper and lower sides is required to reach level 7 precision. The current processing fixture (Chinese Patent Publication No. CN212735110U thin-walled long beam type is a kind of slender support milling When processing with an adaptive fixture), it is difficult to position and process the steps, resulting in easy deformation during processing
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[0034] The technical solution of the present invention is further described below, but the scope of protection is not limited to the description.
[0035] see Figure 1 to Figure 9 shown.
[0036] A kind of elongated supporting member processing method of the present invention comprises the steps as follows:
[0037] Step 1, blank forming: firstly take medium-carbon alloy steel bars for hot forging, after forging, carry out normalizing treatment, after cooling, straighten to form blanks, mill and rough-process the left and right sides of the blanks on ordinary gantry milling machines to ensure that the shaft length reaches slender Support 8 is designed with a total length L, and the top, bottom, front, and back are milled out, then quenched and tempered, and then tempered to obtain a good organizational structure that meets tensile properties and low-temperature impact properties, such as figure 2 shown;
[0038] Step 2, the upper and lower steps are formed; the upper step...
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The invention discloses a machining method for an elongated supporting piece and a machining clamp device. The machining method sequentially comprises the following steps that an upper step and a lower step are formed; the lower surface and the upper surface are finish-milled; and the lower surface and the upper surface are subjected to secondary finish milling through the machining clamp device. Due to the fact that when the lower surface and the upper surface of the elongated supporting piece are subjected to secondary finish milling, multi-point stable supporting and positioning of a plurality of positioning blocks A distributed at intervals can be obtained, when a plurality of pressing plates conduct multi-point pressing on the elongated supporting piece, supporting of a cushion block located at the bottom is obtained, when the elongated supporting piece is milled, a generated slight vibration part is transmitted to a base through the cushion block, the slight vibration part is eliminated through air transmission in beam taking grooves, and local deformation of the elongated supporting piece due to excessive impact between a local part of the elongated supporting piece and the pressing plates is avoided, so that the parallelism of the lower surface and the upper surface of the elongated supporting piece after secondary finish milling meets the level precision; and the problem that when a machining clamping fixture is used for machining an elongated supporting piece, a step is difficult to position and machine, so that deformation is caused is solved.
Description
technical field [0001] The invention relates to a processing method and a processing fixture device for a slender support member, belonging to the technical field of vehicle beam processing. Background technique [0002] In a kind of slender supporting member used, the blank is made of medium carbon alloy steel bar, and the blank is slender, and its length-to-diameter ratio reaches 20, but after the blank is processed to the slender supporting member (a A slender support such as figure 1 As shown), there will be steps on the upper and lower sides and the parallelism of the upper and lower sides is required to reach level 7 precision. The current processing fixture (Chinese Patent Publication No. CN212735110U thin-walled long beam type is a kind of slender support milling When processing with an adaptive fixture), it is difficult to position and process the steps, resulting in easy deformation during processing. Contents of the invention [0003] In order to solve the abo...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B23C3/00B23Q3/06
CPCB23C3/00B23C3/002B23Q3/06B23Q3/062B23Q3/064
Inventor 邹翔杨彦明罗乔张金亚王德贵
Owner GUIZHOU JONYANG KINETICS