Qingdao Dongze all-electric servo turret punch press DES-300/400 series, using servo motor direct drive crank linkage mechanism to control the stroke of the punch accurately, can be punching, flanging, engraving, rolling rib (step), positioning, shallow deep drawing and other moulding processes, the equipment is stable and reliable, with high precision, high efficiency, low noise, energy saving and environmental protection characteristics, Dongze Intelligent Equipment continues to create value for customers.
1. Roulette wheel (knife and disc difference)
1.1 The wheel disc adopts a thick turret structure, thickness of 65mm, selected high-strength 40Cr high-carbon steel material, and tempering treatment so that its strength is higher, better rigidity, impact resistance, and long life. (Some manufacturer's wheel discs for the smothering treatment, are not tempered; some manufacturers' wheel disc thickness is thin 55mm, with poor stability.)
1.2 When installing the upper and lower wheel discs, a torque tester is used, together with a special customised gearbox transmission mechanism, to strictly control the rotating torque of the upper and lower wheel discs, to ensure the smooth running performance of the wheel discs, and to ensure the stability of the core part of the machine tool set. (Other manufacturers do not have this installation process.) (Attachment)
2. Cutter positioning stability (with pictures)
The central axis of the cutter plate (upper support axis) is a central hole positioning structure, with high stability, not easy to lose offset. (The rest of the manufacturers for the pin structure, easy to loosen, poor stability, machine tool cutter moulds after use need to be adjusted frequently, resulting in serious damage to the mould, and frequent grinding seriously reduces the service life of the mould, increasing the cost of using the equipment).
3. Advantages of cutter centre shafts
The centre axis of the cutter plate is a one-piece structure with strong rigidity and high precision. (The rest of the manufacturers are split structure, rigidity is poor, cumulative error accuracy is poor, stability is not high, seriously affecting the use of performance, reducing the service life of the machine tool.)
4. Bushing Differences
The upper and lower bushings and upper and lower sprockets are configured with special symmetrical positioning keys, which avoids transmission errors, ensures the transmission precision of the cutter plate and improves the working efficiency of the machine. (The rest of the manufacturers do not have this design and installation process.)
5. Powerhead Difference
5.1 Powerhead stroke for 40mm large stroke, the maximum avoidance of the phenomenon of bad moulds due to the rotary disc rotation, torque of 1600N.M torque, effectively enhance the machine tool power head stamping power of efficient use of performance. (The other manufacturers' power head has a stroke of 32mm and a torque of 1200NM.)
5.2 All powerheads before installation should be through the test platform for kinetic energy and stamping power tuning, and test its stability, rigidity, heat and other properties. (The rest of the manufacturers do not have the test and tuning platform, the power head has not been performance tested, the untested power box installed in the machine tool, has appeared in the main motor overheating and burning phenomenon.)
6. rotation mode
6.1 Homemade rotary mould adopts servo motor and worm gear direct connection transmission structure, high efficiency, up to 80-90 revolutions per minute. (The rest of the manufacturers are 30-40 revolutions per minute.)
6.2 Adopt servo motor and worm gear direct connection transmission structure, the structure is exquisite, has stable performance, and the subsequent use of very low maintenance costs. (Synchronous belt (Longyan) type rotary mould structure is complicated, low efficiency and extremely high maintenance cost.)
7. fuselage construction
7.1 The fuselage adopts a Q345 carbon steel plate welded closed O-type structure, and the whole body is tempered in a large fireplace after welding, which effectively eliminates the internal stress, prevents deformation of the fuselage, and improves the fuselage precision and rigidity. Fuselage processing with a large CNC boring and milling machining centre for a clamping process to ensure the accuracy of the fuselage processing. (Some manufacturers use ordinary CNC boring and milling machining centres that require secondary clamping, with relatively poor precision.)
7.2 The body foot support is designed as 5 places, and 1 place foot support is added at the material drop, which effectively ensures the strength of the body, and the body is not easy to be deformed during the stamping process, and is more resistant to impacts. (The rest of the manufacturers save the material design for 4, the body in the stamping process is easy to deform, which will seriously affect and reduce the overall performance and service life of the machine tool.)
8. The wheel processing equipment adopts the German Demagi 5-axis gantry machining centre to ensure wheel precision. (Demagi Germany is a world-renowned manufacturer of high-precision machining centres.)
9. The feeding connecting plate adopts a one-piece structure, reasonable structure, solid welding, and aging treatment, which is not easy to deform and has high stability. (Other manufacturers' connecting plates are designed to be lightweight, with poor rigidity, no stability, and very easy to deform.)
10. Installation process
There are professional and special installation and testing fixtures for feed guide, screw, wheel and other machine parts, while the installation workers have more than ten years' experience in the turret punch press industry and work seriously and rigorously to ensure high quality of the machine tools. (Inspection fixtures attached)
11. Guide rail screw to ensure genuine, high strength and precision, long service life. (Some manufacturers all with domestic high-fashion configurations.)
12. The chain is equipped with a Tsubakimoto double-row chain imported from Japan, with high chain strength and transmission precision. (The rest of the manufacturers use domestic or single-row chains, the chain strength and transmission precision are relatively poor.)
13. The power head cooling system is installed inside the machine body, which saves space and improves cooling efficiency. (The other manufacturers' cooling systems are external or have long cooling circuits.)
