Archive for October, 2016

Punch working mode

Thursday, October 20th, 2016

Punch must be oil gun clutch, the bond is at least not less than 2 times the oil. Every month to check the shaft bearings and injection of calcium-based grease 3. The nuts of the connecting rods and fittings must be checked for looseness and adhere to the small weekly punch, such as cleaning, to keep the equipment clean.

Punch work: According to the oil circuit diagram of each punch on the right side of the bed body, timing hand freezing oil pump, oil pan, oil gun oil lubrication equipment. The billet is placed over the billet while cutting.

The pressure of the material on the foreigner makes it plastic deformation and obtains the desired shape and precision so you have to use a set of molds (upper and lower die), placed in the material, on the machine The pressure, when deformed, is applied to the material that causes the reaction to be absorbed by the body. Many companies in the use of stamping processing production, still continue to use a simple manual work, play hands directly in the cavity, as well as a large number of production tasks by the equipment are saddled with a wide range of products. Henan punch in this case, if the stamping equipment and mold without safety protection devices, and easy to hand injury accident. Therefore, in punch production, strengthen security protection, improve the degree of mechanization, is an important way to prevent accidents.

In order to avoid waste, fall into the dies should be on the stage edge scrap cleaning work will be at regular intervals. Punching plant shallow drawing work, pay attention to the equipment and mold found in the steel plate welding press work is not normal, such as guide pin loose, mold, machine tools are not normal ringing tone, manipulator failure, it is necessary to immediately stop the machine check Quality fault repair.

High-precision hydraulic punch factory after which the test

Monday, October 10th, 2016

Hydraulic press: hydraulic press is at the moment is the stamping furnishings industry’s first fully voluntary, intelligent servo electro-hydraulic compound press, and the stubborn punch and injection press, whether in the machine trap, control and preparation Function has a great break. Hydraulic presses selected independent research and development of the double dead round of the servo system control methods, high level of human nature, full automation, intelligent and strong function. It can be used for stretch forming of products such as cutlery, kitchen utensils, metal shells of electrical appliances, hoods and lighting parts. Besides, it can be used in the latest touch-screen technology without mechanical contact. Point technology to establish parameters, the use of convenient, high degree of humanity.
Hydraulic press accessories maintenance Hydraulic transmission is the use of liquid pressure to convey the power and control of a transmission. Hydraulic equipment is hydraulic pumps, hydraulic cylinders (hydraulic motors and other implementing agencies), hydraulic control valves and hydraulic subsidy components, it is the source of the effectiveness of auxiliary components, hydraulic pressure to achieve the limitations and treatment of hydraulic pressure occupational stress, pay attention to overload (Such as check valve, reversing valve, relief valve, pressure reducing valve, sequence valve, throttle valve, governor valve, etc.).

High precision hydraulic press plan principle is the use of circular motion changes as a linear motion, after the idea of ​​motive force of the flywheel, through the unity of the aggregator of each crankshaft, gear and the punch press link, then slider It will expose the movement of the straight line, and this time from the motor to the connecting rod will form a circular motion.

High-precision hydraulic punch in the process of production, stamping parts of the situation, the size of very different requirements of precision, and the general requirements of the press factory production is not the same, which often people involved in the stamping to bring the necessary hard work. But on the other hand Henan punch, only to obey the basic order of precision punching stamping, understand the stamping of the basic processes of the respective deformation characteristics, even if the stamping parts of the shape, size, and accuracy requirements are not to the basic steps stamping or similar of. Ordinary environment can work in the following order:

High-precision hydraulic presses doomed the original data; comprehend the characteristics of the product parts drawing stamping process; decision stamping work planning; determine the size of the mold; select precision punching equipment; preparation of stamping process card; from the beginning to see the product parts drawings and kinds of pressure process ; The overall design of the mold; the main parts of the mold design; drawing mold assembly drawings and parts drawings, check the mold design; confirm the peace process.

Precautions on the Use of Drilling Bit for CNC Drilling Machine

Friday, October 7th, 2016

CNC drilling machine is mainly used for drilling, reaming, reaming, tapping and other processing. Bit as an important component, in use, pay attention to the following:
1. Drill bit should be installed in a special box, to avoid vibration collision with each other.
2. When using, remove the drill bit from the box and install it in the spring chuck of the spindle or in the tool changer of the automatic replacement drill bit, and put it back in the box.
3. To measure the diameter of the drill bit, use a non-contact measuring instrument such as a tool microscope to prevent the cutting edge from being touched by contact with the mechanical measuring instrument.
4. Some CNC drilling machine using the positioning ring Some CNC drilling machine does not use the positioning ring, such as the use of positioning rings when the installation of the depth of positioning must be accurate, such as the use of positioning ring to drill bit installed on the spindle to adjust the elongation In the case of multi-spindle drilling, it is important to make sure that the drilling depth is the same for each spindle, and if it is inconsistent, it may be drilled to the table or cut through the circuit board.
5. Usually you can use 40 times the stereomicroscope to check the wear of the drill cutting edge.
6. Always check the concentricity of the spindle and the spring chuck and the clamping force of the spring chuck, concentricity is not good will cause a small diameter drill bit and large hole diameter and other circumstances, the clamping force will cause the actual speed is not good and Set the speed does not meet, skid between the chuck and the drill bit.
7. Dingbian bit in the spring chuck clamping length of the handle diameter of 4 to 5 times to clamp firmly.
8. Always check the spindle presser foot. The presser foot contact surface should be horizontal and perpendicular to the spindle can not shake, to prevent drilling and drilling in the hole.
9. Drilling machine better cleaning effect, dust can reduce the temperature drill bit, colleagues take away the dust to reduce friction to produce high temperature.
9, the substrate stack, including the upper and lower plate to the table in the drilling machine on a hole in a groove positioning system positioning firmly in place, the use of adhesive tape to prevent the drill bit on the tape so that the drill bit adhesion chip, Resulting in difficult chip removal and broken drill.
10. To order the drill bit, the factory inspection of the 4% of its compliance with the provisions of sampling and 100% with 10 to 15 times the microscope to check the gap, abrasions and cracks.
11. Re-grinding of drill bits can increase the use and re-grinding times of drill bits, prolong the life of drill bits, and reduce the production cost and cost.It is usually less than 0.2mm in the whole length of two main cutting edges measured by tool microscope. Re-grinding to wear away 0.25mm. Ordinary fixed-bit can be re-grinding 3 times, the shovel-shaped head of the drill can be re-grinding 2. Over grinding its quality and accuracy of drilling will be reduced, will result in the finished circuit board Excessive grinding effect is counterproductive.
12. When the wear due to wear and its diameter compared to the original reduced by 2%, then the drill scrap.
13. Bit parameter settings Under normal circumstances, manufacturers have to provide a drill bit of the plant’s drilling speed and speed of the parameters of the table, the parameter is only a reference, but also through the actual use of technology personnel to draw a line Actual speed of the drill bit and down speed parameters, usually the actual parameters and parameters of the difference between the reference but not too much difference.
Good use of the method can extend the life of the drill bit, processing to meet the requirements of drilling, but also can reduce unnecessary costs. Hope that the above considerations can help you better use of CNC drilling machine.

Drilling the high-precision machining standards

Wednesday, October 5th, 2016

Drilling machine is a widely used, which is characterized by the vertical axis of the spindle layout, and its position is fixed. Machining, in order to make the tool rotation center line and the center line of the hole coincidence, must adjust the working position. Suitable for processing small holes on the workpiece and processing accuracy relative to other drilling machine to be much higher.High-precision drilling machine processing standards are as follows:
1, the motor is copper core motor, electrical products using national 3C certification to ensure safe and reliable.
2, the basis of large pieces of resin sand molding casting, no blisters, no holes, aging treatment, high precision, with very high accuracy
3, the rail surface by the quenching treatment, the main axis of nitrogen treatment, delay the service life.
4, supersonic hardening gear, wear, high hardness, noise, the use of close CNC grinding gear grinding worm gear all the noise may be the detection of the quality of the gear teeth, noiseless sound, otherwise noise decibels above 100 decibels.
5, motor, electrical appliances are dedicated switches, electrical Yigai diminished color.