For the party enterprises according to their own product characteristics to choose different production methods, the article on the common stamping automation production line classification: progressive die stamping, multi-station stamping, series stamping, and the production line characteristics and selection methods for a brief analysis.

Automatic stamping production lines mainly include: progressive die stamping, multi-station stamping, and tandem stamping. Because of their respective characteristics, they are applied to the production of different automotive sheet metal parts. With their unique advantages, they are in automotive automation and efficiency. Plays a huge role in the production system. The characteristics of the three automatic stamping production lines are compared and analyzed, and the selection method of the production line is explained according to its characteristics. Therefore, it is convenient for enterprises to combine their own parts characteristics and make reference in the selection of automatic production lines.

With the rapid development of the automobile industry, the stamping industry of the four major processes of car manufacturing is also booming. In order to adapt to the growing output, a variety of automated production lines came into being, and with the characteristics of the product demand, was given different production methods. For the party enterprises according to their own product characteristics to choose different production methods, the article on the common stamping automation production line classification: progressive die stamping, multi-station stamping, series stamping, and the production line characteristics and selection methods for a brief analysis.

Selection Factors of Automatic Stamping Production Line

Generally consider the following factors to choose the type of stamping production line.

(1) product material: including material type, forming performance, hardness, etc., to measure the selection of coil or sheet forming.

(2) Material thickness: consider together with the material to select the tonnage of the stamping machine and the matching form of the feeding mechanism.

(3) Monthly supply and demand: evaluate the production capacity, determine the production rhythm, weigh the choice of automatic line type.

(4) Stamping product volume and modeling difficulty: through modeling complexity and product quality requirements standards, comprehensive consideration of mold design methods and corresponding stamping automation production methods.

Common types of stamping automation production line

Progressive Die Stamping Production Line

(1) Overview: The automatic production line of progressive die stamping is the production line that uses progressive die stamping, which is generally composed of an uncoiling feeder, a stamping machine, a progressive die, and an automatic blanking line. Realize the automatic process of uncoiling from the coil material, flatter the material belt, oiling the material belt, stamping into parts, and collecting finished parts from the production line.

One of the important parts: progressive die, composed of multiple stations, up to more than 20 stations, each station is associated in sequence to complete different processing contents, generally followed by punching, trimming, flanging, shaping, blanking process, etc. A series of different processing contents are completed in one stroke of the stamping machine. After a stroke is completed, the feeder moves the material belt to the blanking direction according to a fixed step distance, so that multiple processes can be completed at the same time during the reciprocating punching of a punching machine.

(2) Features: The production cycle of the automatic production line of the progressive die stamping is high, generally up to 30 times/min or more.

A. high production efficiency. Progressive die is a multi-task process die, in a pair of mold, can include blanking, bending and stretching and other processes, with high productivity.

B. Easy to automate. Automatic operation can be realized from feeding, feeding, processing and loading, thus reducing labor cost, improving production efficiency and preventing abnormality caused by inconsistency of manual operation.

C. can use high-speed punch production. Depending on the product status, consider using high-speed punch to achieve higher production efficiency.

d. Safe operation. The level feed press equipment has a safety door, so that the work to improve the utilization rate of materials. The work area is isolated from the personnel operation area to form a relatively closed work area, which provides safety guarantee for high-speed production. The traditional tandem production line can achieve higher production efficiency.

E. save the production plant area. A machine tool is composed of the processing part of a production line, which can complete the production of a product. It occupies a small area, and also simplifies the transportation state detection of bottom materials and semi-finished products, and has high safety.

f. The material utilization rate is not high. In order to ensure the continuity of the material belt and the requirements, in order to ensure the stability of the feeding, it is generally necessary to ensure the uniform distribution of the contents of each process state process, sometimes at the expense of a part of the material, which can not achieve a higher material utilization rate.

Multi-station stamping automatic production line

(1) Overview: A production line in which multiple (usually 4~5 pairs of molds) independent station molds are placed on the worktable of a large-tonnage press. The production line uses a stacking hand or an uncoiling feeder to feed materials, uses an automatic feeding rod to transfer process parts, and uses an automatic conveying belt to collect off-line products.

(2) Characteristics.

A. the bottom material can be a roll material or a sheet material, which is flexible and conducive to improving the utilization rate of materials.

B. the use of automatic rod feeding, punching times lower than the progressive die production line, higher than the traditional series production line, can achieve higher production efficiency.

c. The loading and unloading sensor, double material detection, hand clamping sensor, in-mold sensor, etc. can be added to detect the position and state of the material sheet and the parts in production, with high safety.

D. for each station mold feeding height and stamping direction have higher requirements, in order to ensure the stability of feeding, generally to ensure that the state of each process process process is consistent.

tandem stamping automatic production line

(1) Overview: A plurality of presses are arranged in sequence and connected in series to form an automated production line. A pair of molds (I .e. a process of the production process) are placed on the worktable of each press, and the automatic mechanical arm or robot completes the feeding, transfer of process parts and the blanking and packing.

(2) Characteristics.

A. a wide range of applications, can be applied to the production of various stamping parts, stamping parts size, shape, thickness without higher requirements, can be applied to the production of large panels, flexibility.

B. production efficiency is low, due to the use of mechanical arm feeding, beat punch times can not be higher, compared with the progressive production line, multi-station production line, production efficiency is low.

C it is conducive to mold maintenance and debugging. since each mold belongs to each press, the clamping is independent and the working parameters are independent, the maintenance and debugging of each mold process can be carried out independently without affecting each other.

D. occupies a large area of production plant, a traditional series production line generally includes 4 to 5 presses, covering a large area.

Selection and Application of Automatic Stamping Production Line

Progressive die stamping automatic production line: according to the process characteristics of its processes distributed on an integral strip and the achievable high process punching times, it can be applied to the production of small parts on the body and can meet a high supply.

Multi-station stamping automatic production line: it can be applied to the rapid production of medium-sized parts, beam parts that are not easy to deform, symmetrical parts with complex left and right common mode shapes, and products that can be clamped by the clamping hand on its automatic rod can be applied to the production of this automatic line.

Series stamping automatic production line: because of its independent distribution of each process in each press, the production line is flexible, suitable for the production process of complex large covering parts, conducive to the commissioning of a single process and independent production, convenient for high quality control of products.