Friday, December 23, 2016

The Specific Meaning and Influence of Accuracy of High Speed

High-speed punch accuracy of the specific meaning and impact? Many customers in the procurement of presses, will ask what is the meaning of precision standards in the end, the specific test is what the project is not the actual punching accuracy of the production? In response to this problem, we here to answer our customers in detail: In the high-speed press punching production, the punch accuracy is very important. Punch precision directly affects the accuracy of stamping products, die life. Punch precision punch is not divided into the actual static load and load (for stamping) dynamic accuracy. High-speed press punching is very important in the actual production of dynamic accuracy, due to the use of presses, the actual load changes in volume is very large, so specifications are technically difficult, so not integrated development, the status quo is static precision to represent the precision punch. Punch is the use of a group of molds, processing operations need to set the correct relationship between the mold movement. Punch the correct relationship between the movement process is the punch accuracy, accuracy is mainly reflected in the punch: First, parallelism, two, vertical, three, the total gap. The relationship between the mold movement is not correct, in addition to reducing product accuracy and shorten the life of the mold, the mold will also lead to easy assembly, can not use precision molds, and will produce intense vibration noise. Co-ordination of the static accuracy of the punch test items are as follows: 1. Punch table above the slider with the following true straightness 2 cranberry punch with ginger ale. Parallelism between the underside of the slider and the top of the table 3. The vertical movement of the slider and the top of the table 4. Mold handle hole and the straight angle below the slider 5. Above and below the joint part of the total gap? Impact of punching accuracy on stamping parts In modern stamping operations man punches kangaroo in the face, if only high-precision, long life of the mold, without high-precision punch and punching materials with high-quality, is unable to achieve high-precision stamping process punch romaine. Punch precision and rigidity of the life of a great impact on the mold, the same mold in a different punch on the punch to show different performance and service life.

 Such as in the general accuracy of the punch on the use of tens of thousands of times that chipping, and in the high-precision precision punch on more than 1 million times have chipping phenomenon. Dynamic accuracy and punch parts of the rigidity are directly related to the rigidity of a good punch accuracy is relatively high dynamic. If the punch load, structure and other compression structure will be deformed. So the static accuracy will deteriorate, you can say that dynamic accuracy is the real precision. Punch precision and accuracy of the product, die life has a very close relationship between. The dynamic accuracy is directly related to the rigidity of each part of the press, and the dynamic accuracy of the punch with good rigidity is relatively high. Actual stamping process is very important in the dynamic accuracy, because the specifications have technical difficulties, it has not yet integrated development, the status quo is the static precision to represent the accuracy of punch. ?? IPM companies adhere to the 'scientific management, and carefully developed; quality and efficient, compliance about re-letter' quality, and continuously improve the quality of all staff awareness and quality of work.

High-speed press is the use of mechanical transmission of the material forming equipment

High-speed press is the use of mechanical transmission of the material forming equipment, through the transmission mechanism to obtain the required material forming force, so that the blank to determine the deformation, made of the required parts, can be stamping, extrusion and forging process. High-speed presses work in a variety of forms, usually by the crankshaft, connecting rods, rails and sliders and other components, the function is to crankshaft system of rotary motion into the guide system of reciprocating linear motion. In practice, the use of high-speed punch structure is mainly toggle-type punch trump, multi-link and so on. For the toggle-type high-speed punch press structure, the punch through the vertical guide 1 drive link 4 end of the pilot pin do linear motion, L arm driven toggle to do a composite plane movement, the slider in the toggle under the action of reciprocating linear motion .

 Since the structure is structurally symmetrical except for the crank 6 and the connecting rod 4, the horizontal inertial force of the mechanism can be well balanced. However, the inertia force of a single crank-link mechanism can not balance the force of the fuselage, and should be considered in the design process power punch. Multi-link high-speed punch structure, the crank 12 in the rotation guide block 4 to do a linear motion, right rod 3 under the action of the upper right link to make the upper right link rotation. The slider moves in a straight line under the joint action of the lower right link 11, the right balance lever 10 and the right transfer lever. The mechanism for the balance of inertial force, while the other end of the fixed lever connected to a balance pendulum fast, work, balance the direction of fast pendulum and the opposite, from the balance. Similarly, the mechanism due to the crank rod is not symmetrical body guy punches kangaroo, the resulting inertial force can not be offset.

High-speed press hydraulic pump failure how to do it

Using the hydraulic pump for the gear pump, vane pump, gear pump now, for example, to its fault diagnosis and diagnosis. In the blanking process, the fault gear pump is usually: oil shortage, excessive noise and pressure fluctuations; hydraulic pump is not working properly or high-speed punch to stay in. Common causes and countermeasures of oil transportation shortage:
 1 Pressure valve not normal: Repair or replace the pressure valve punch signature. 2 pump body cracks and leakage phenomenon: the need to replace the body pump, pump and pump cover, covered with paper pads, fastening screws. 3 due to the gear pump radial and axial clearance is too large, the relative movement of the gear pump will lead to wear and rotation of the bearing ring, axial and radial clearance is too large, replacement parts.
 4 Motor reverse: Correct motor rotation direction. SAM_6509_ Moumu compression .jpg5 The presence of dirt in the filter, the pipeline is not clear: remove dirt, replace the oil to ensure that the oil is clean. 6 oil viscosity is too high or too high temperature: high-speed punch using 20 mechanical oil # suitable temperature choice for the 10-50 ℃ temperature oil 20 # full loss system punch vst, if it is three types of work, you must install the cooling device gut punch videos.