Search This Blog

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


# TPS65266RHBR TI TPS65266RHBR New Switching Voltage Regulators 2.7Vto6.5V InputV3A 2A/2A Output Cur Syn , TPS65266RHBR pictures, TPS65266RHBR price, #TPS65266RHBR supplier ------------------------------------------------------------------- Email: [email protected] ------------------------------------------------------------------- Manufacturer: Texas Instrument s  Product Category: Switching Voltage Regulator s  RoHS:  Details   Mounting Style: SMD/SMT  Package / Case: VQFN -32  Output Voltage: Adjustable  Output Current: 2 A, 3 A  Number of Outputs: 3 Output  Input Voltage MAX: 6.5 V  Topology: Buck  Input Voltage MIN: 2.7 V  Switching Frequency : 1 MHz  Minimum Operating Temperature: - 40 C  Maxim um Operating Temperature: + 85 C  Series: TPS65266  Packaging: Cut Tape  Packaging: MouseReel  Packaging: Reel Switching Voltage Regulators 2.7Vto6.5V InputV3A 2A/2A Output Cur Syn

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

Research on the service life and repair interval of vehicle reducer

Through calculation and statistical results, a preliminary conclusion can be drawn after synthesis: For a large hump with heavy workload, the average number of brakes in one part of the reducer is about 300,000 vehicles per year, and the maximum is up to 500,000; the second part decelerates The average number of braking vehicles per year is about 7 million, and the maximum number of vehicles is 250,000; the average number of braking vehicles per year for the three-part reducer is about 40,000, and the maximum number of vehicles is 70,000.

For small and medium hump reducers, the number of actions will be significantly reduced. Life analysis of the whole machine, wearing parts, and wearing parts. The life of the reducer. The three-part reducer generally has a design life of 100,000 vehicles. Calculated based on the number of vehicles braked by the above-mentioned reducer per year, the minimum useful life is 14 years, and the average useful life is 25 years.

In fact, except for a small amount of TJY-1 and T-2-2 which have been used for 20 years, and T"KZ-1 (A50) has a 16-year history of use, other reducers may have been identified late (for example, TJKZ-B (50) , TJKI-D (50)), there is no long-term use record; some simply can not meet the service life requirements (such as TJKI-C).

But most of the three-segment reducers, generally around 10-12 years, due to the appearance of new types of reducers and overhaul and replacement. The design life of the reducer of the first and second parts has 1 million cycles (for example, TJK (Y) 3 one (50), 2 million cycles (for example, T suit (average 3 one (50), TK4 one (50)), and 30 10,000 vehicles (such as T not K, TJK 3-B (50)). If calculated according to the number of vehicles braked by the above-mentioned reducer per year, one part of the big hump can be used for 2 years, 4 years and 6 years respectively (according to each year * more Braking 500,000 vehicles), the average can be used for 3.3 years, 6.7 years and 10 years (according to the average annual braking of 300,000 vehicles).

The second part can be used for 4, 8, and 12 years less (250,000 more braking times per year), and an average of 6.7 years, 13.3 years, and 20 years can be used (according to the average annual braking number of tens of thousands of vehicles). During the use of the reducer, the wearing parts need to be replaced frequently to ensure the normal use of the reducer. However, the life span of the wearing parts is very different, which directly affects the performance of the reducer.

The life of wear parts of the reducer The strength of the main parts of the reducer can generally meet the design life except for casting and material defects. However, the failure and performance degradation of the reducer are mostly caused by excessive wear of the wearing parts. The following analyzes several wear parts that have the greatest impact on the performance of the reducer.

In addition to TJKI-c and TJKI-D using 50kg/m rails, the other reducers are mostly 60mm steel rails. The newly produced TJK3-B50 reducer adopts 75k left m rail reform. According to statistics, the brake rail with 50k leaving m can wear 3.5 to 450,000 vehicles; the brake rail with 60 k leaving m can wear 5.0 to 600,000 vehicles; the brake rail with 75 k leaving m can wear 65 to 750,000 vehicles; in large and medium-sized For the hump, the 60kg/m brake rail can be used for 1 to 3 years in the first and second parts; 8 to 12 years in the three parts. The 50kg/m brake rail can only be used for 6 to 8 years in the three parts, and the overhaul period is too short, so it is not recommended.

Sleeper plates and rail rubber pads The reducer sleeper plate bears the impact force of the rail falling when the reducer is relieved and prevents the reducer from crawling and floating on the side. It is also subject to the positive pressure of the passing vehicle when it is not braking. The sleepers on the main line are more vulnerable to damage. In addition, the rail rubber pad of the original reducer is not easy to replace, and the rubber pad is damaged or not replaced in time after aging, which may easily cause damage to the sleeper plate. After the sleeper plate is damaged, because it is not easy to repair and replace, it will often cause the reducer to be overhauled in advance.

Therefore, the life of the sleeper plate often determines the life of the reducer. The life of ordinary sleeper plates is generally 100,000 vehicles; the life of sleeper plates with abraded sides and sleeper grooves increased by iron plates can generally reach 200,000 vehicles. If you need to increase the life of the sleeper plate, you need to use a combined sleeper plate, that is, the worn side surface and the sleeper groove as replaceable parts. According to calculation and analysis, the life of the combined sleeper plate can reach 400,000 vehicles or more. TJK3-B50 reducer adopts combined sleeper plate. The life of rail rubber pads is generally 500,000 to 600,000 vehicles, so the rubber pads need to be replaced during medium repairs. The mid-repair period of TJK3-B50 reducer exceeds 10 to 1.2 million vehicle trips, so the rubber backing plate needs to be replaced during the period. For this reason, the rubber backing plate of TIK3-B50 reducer adopts the normal-line general type for replacement.

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.

Link to this article:Research on the service life and repair interval of vehicle reducer

Reprint Statement: If there are no special instructions, all articles on this site are original. Please indicate the source for reprinting.:Cnc Machining,Thank

Contact Us

Get In Touch or Get A Quote

Need an expert? you are more than welcomed to
leave your contact info and we will be in touch shortly
Sifangyuan Industrial Park, Xinshapu, Huaide Community
Humen town, Dongguan City, Guangdong Province.