Broaching machine for machining notches for impact specimens
A technology for impacting samples and notches, applied in broaching machines, broaching devices, metal processing equipment, etc., can solve the problems of low sample notch accuracy, short equipment service life, high processing costs, and achieve stable and reliable processing quality. Wear and high processing efficiency
Inactive Publication Date: 2015-02-11
JINAN LIANGONG TESTING TECH
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Problems solved by technology
At present, the broaching machine for processing the notch of the impact sample uses a hydraulic cylinder to drive the broach to move up and down. This kind of broaching machine has the defects of unstable stroke and low precision of the processed sample notch, and because its copper sleeve is easy to wear, resulting in equipment failure. Short service life and high processing costs
Method used
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[0018] Accompanying drawing is a kind of specific embodiment of the present invention, comprises frame 1, is provided with worktable 6 on it; Driving device is located at frame 1 inside, comprises the motor plate 19 that horizontally arranges wherein; Motor plate 19 passes four The column 20 is connected with the worktable 6, the motor 18 is fixed on the motor plate 19, the motor 18 and the lead screw 22 are fixedly connected through the coupling 21, and the motor directly drives the lead screw; the frame 1 is provided with a vertical guide rail seat plate 7. The lower end of the guide rail seat plate 7 is fixedly connected with the motor plate 19, and a two-day parallel linear guide rail 8 is provided on it. The guide rail 8 is provided with a guide slider 9 that can slide up and down, and the guide slider 9 and the broach seat plate 12 is fixedly connected through the slider pad 13; the ball screw 22 is fixed on the guide rail seat plate 7 through the bearing housings 21 at b...
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The invention relates to a broaching machine for machining notches for impact specimens. The broaching machine is mainly used for machining V-notches and U-notches for metal impact specimens. The broaching machine comprises a frame; a driver and a hydraulic device are disposed within the frame; the driver transmits power to a broach transmission mechanism; a specimen clamp is arranged outside the upper portion of the frame. The broaching machine is characterized in that the broach transmission mechanism is a screw vertically arranged, a nut holder fitting the screw is connected to the rear of a broach base plate. compared with the prior art, the broaching machine has the advantages that a broach travels stably in the broaching process, specimen notch machining precision is high, machining efficiency is high, and machining quality is stable and reliable; the ball screw is rarely abraded, thus service life of equipment is greatly prolonged and costs are lowered.
Description
technical field [0001] The invention relates to a broaching machine for processing notches of impact samples, which is mainly used for processing V-shaped and U-shaped notches of metal impact samples. Background technique [0002] Metal Charpy impact test is the most widely used traditional mechanical property test for determining the toughness of metal materials, and it is also one of the important means to evaluate the toughness of metal materials under impact load. At present, the metal Charpy impact test standard implemented in my country is: GB / T229-2007 "Metal Charpy notched impact test method". The biggest difficulty in implementing the standard is the processing of the V-shaped and U-shaped notches of the sample, that is, to process a notch with a 45° angle, a depth of 2mm (or 5mm), and a tip of R=0.25±0.025mm on the metal pattern of 10X10X55mm. At present, the broaching machine for processing the notch of the impact sample uses a hydraulic cylinder to drive the...
Claims
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Login to View More IPC IPC(8): B23D41/02B23Q11/12B23Q5/40B23Q5/36B23Q1/01B23Q11/08
Inventor 刘琳陈勤勤鞠传华
Owner JINAN LIANGONG TESTING TECH