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What errors may occur during CNC machining and CNC machining​?

 CNC machining and numerical control machining are a method to control the movement of machine tools and the production process of machining through computer digitization and information digitization. It is an intelligent numerical control device developed as an economical, high-speed, reliable, multi-functional, intelligent, and open structure. CNC machining is also an important indicator that can measure the continuous level and comprehensive ability of a safety technology, as well as the degree of modernization of related science and technology capabilities, especially in aviation, biology, medical and other high-tech cultural industries, and it is also a powerful indicator. reflect. So, what errors may occur during CNC machining and CNC machining? Let us understand together:   The use of approximate machining motion or approximate tool contours causes errors in the CNC principle of machining. The reason why it is called machining principle error is because of the error in machining


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What are the rules for metal stamping die scrap tube?

The Purpose Standardize the management of the scrapping of the company's metal stamping dies, prevent the loss of company assets, and formulate this system specially. Scope of application It is suitable for the management of the company's scrap molds. Definition If the molds listed in the assets of the company fall under one of the following circumstances, the use management department may apply for scrapping. 1. Molds that exceed the specified service life. 2. The mold is severely damaged by accidents or accidents, and molds that cannot be repaired or have no repair value. 3. Metal stamping dies that have not reached the service life, but due to safety, quality, efficiency and other issues, the repair still fails to meet the minimum requirements of the customer's product process or affects the production safety and efficiency. 4. Product customers have stopped placing orders or have not placed orders for molds in several years. 4. Responsibilities 1. Responsibilities of th

Inspection strategy of tire full-speed anti-breakage testing machine

Standard model and parameters Model and name Maximum test value accuracy/% EHB-100A standard dynamometer 10000kg 0.3 SZG-141B digital speed 10000rmin-10.0222 self-inspection conditions Working temperature 1035, the environment is dry, clean, and vibration-free.

The difference between the load display value of the self-checking equipment load and the actual force applied to the drum is the load error. (1) The installation of the EHB-100A standard dynamometer The standard dynamometer is fixed on the bracket, the dynamometer probe should be located on the plane composed of the rim and the center axis of the drum, and the end with the probe rests on the drum Up, the other end is towards the rim, as shown.

(2) Load test Choose 5 force points for load test on each station. In accordance with our factory’s inspection requirements for finished tires, five force points of 1, 2, 3, 4 and 5t are selected at the 1 and 2 stations. The installation of the EHB-100A standard dynamometer indicates the rim; 2 standard dynamometer ; 3 brackets; 4 drums and 4 stations to choose five force points 0.5, 0.8, 1, 1.5 and 2t. The equipment applies a load from the rim to the standard dynamometer through hydraulic transmission. When the equipment displays the selected afterburner value Xi (i=15), the readings Li of the standard dynamometer are recorded respectively.

(3) Calculation of load error The relative load error i corresponding to each point is calculated according to formula (1): i (%) = Xi-LiLi100 (1) The difference between the speed error of the self-checking device speed display value and the actual linear speed of the drum Is the speed error.

(1) Speed ​​measurement The SZG-141B digital tachometer is portable, so there is no need to install it. When testing, stick the reflective film on the drum and hold the steady tachometer. When measuring the speed, use the tachometer to obtain the standard value of the drum speed Ni first after the drum rotates stably. According to the diameter of the drum, the standard linear velocity value vi of the outer edge of the drum can be calculated as 0.3216Ni. Measuring 1 and 2 stations At the speed, the measured speed vi given by the equipment starts from 50kmh-1, and the speed is increased by 20kmh-1 each time until the speed reaches 150kmh-1, and then the speed is increased to 160kmh-1, and the standard speed Ni of the drum is measured with the tachometer. When measuring the speed at stations 3 and 4, the measured speed vi given by the equipment starts from 80kmh-1, and increases the speed by 20kmh-1 each time until the speed reaches 220kmh-1. At the same time, record the standard rotation speed value corresponding to each speed. The same method can calculate the standard linear velocity at each speed.

(2) Calculation of speed error The relative speed error i corresponding to each point is calculated according to formula (2): i(%)=vi-vivi100=vi-0.3216Ni0.3216Ni100 (2) Processing of self-check results at each point in load detection The absolute value of the corresponding load relative error is less than the load accuracy requirement, then the load test is qualified; the absolute value of the speed relative error corresponding to each point in the speed test is less than the speed accuracy requirement, then the speed test is qualified. If one of the items checked above is unqualified, the equipment is deemed unqualified and must be re-adjusted and tested until all items are qualified.

The automotive parts and parts machining, PTJ Shop offers the highest degree of OEM service with a basis of 10+ years experience serving the automotive industry. Our automotive precision shop and experts deliver confidence. We have perfected the art of producing large component volumes with complete JIT reliability, backed by the quality and long-term reliability our customers expect.

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