A few days ago, I went to Pujiang to visit the production base of Hangzhou Machinery Co., Ltd. There I saw a lot of long-lost machine tools, and the machine tools that were being assembled lined up, so neat and majestic, and they looked so kind.
Ah, this is a powerful forming grinder, a high-end product in flat grinding. A forming grinding machine is a machine tool that can process a variety of complex forming surfaces, rather than simply machining flat workpieces. Ordinary flat grinding can only grind a few wires, while forming grinding can shave a few millimeters at a time, so it is an efficient machine tool.
For many years, when foreign forming grinding machines have been mass-produced, we are still blank here. I remember in the eighties, I participated in a research on a slow-feed forming machine. The survey shows that many industries in China need such machine tools. However, at that time, there was no such machine tool in China, so users with demand could only spend a lot of money to import from Europe and Japan.
Based on the results of the survey, we recommend in the research report that the factory develop this product in a timely manner. But at that time, when General Flat Mill was very popular, the factory had no time to take care of it.
A few years later, due to the needs of key projects, according to the instructions issued above, two forming grinding machines using hydraulic systems to achieve slow feed were produced, which opened the prelude to research and development. In the early nineties, a CNC vernier caliper profile forming grinding machine was developed according to the needs of the tool industry. However, due to factors such as price, sales did not materialize, which temporarily frustrated the development plan.
It was not until 1999 that the development of form grinding machines took a new turn. Foreign restrictions on such machine tools have us, so we can only look at the country. This year began with the development of a powerful form grinding machine, starting with a double-head slow-feed forming machine. The starting point is relatively high, it has a landmark and demonstrative role, and if it can be fired, it can open the situation.
In order to develop this double grinding head machine tool as soon as possible, I used the previous research information, took the competent technical personnel to the user factory for in-depth understanding, detailed view of the situation of similar imported machine tools, obtained more detailed first-hand information, and accumulated data for research and development.
This double grinding head forming grinding machine was successful in a short period of time, and was evaluated by experts as "occupying the commanding heights in China", so it had a good demonstration role. Machine tools have played a good role in the practical application of user factories and have been recognized.
Since then, we have been actively developing a series of products driven by the double head forming grinding machine. Because the demand for single-head forming grinding machines is greater, we have actively developed various types of forming grinding machines since the new century, and have continuously developed varieties, and there are dozens of varieties and models. Because the forming grinding machine is a kind of efficient processing of a workpiece in various industries, it is special and irreplaceable, not only to provide machine tools, but also to provide processing technology, which is a turnkey system engineering. The development of this machine tool requires patience and persistence, through years of technical accumulation, continuous summary and improvement, but also need to pay attention to the market, discover new application fields, only in this way can there be progress. For example, Germany's Brom (BLOHM) company and ELB company have become the world's leader in the grinding machine industry and become the authority of the forming grinding machine industry through decades or even hundreds of years of technical inheritance.
Since the twenty years of the new century, the series of strong forming grinding machines has developed greatly and has become a veritable pillar product of Hangzhou Machinery Co., Ltd., which can be seen from the situation on site. Strong forming grinding machine in the domestic development is relatively late, there are not many domestic manufacturers with this strength, so Hangzhou Machinery can become the leader in this field, to be a "little giant", to be the vanguard of domestic forming grinding machine. In this regard, Hangji has indeed made achievements. At that time, I witnessed the emergence of more than a dozen forming grinding machines, including the crown-removed steam turbine blade forming mill, the car steering rack, the vernier caliper shape, corrugated rollers, razors, etc.
This time, I saw a large corrugated roller special grinding machine being debugged, and there was a three-meter corrugated roller on the ground, which was the largest type of corrugated roll. In the past, there was no such processing equipment in China, because the corrugated roll processing was more complicated, and it was necessary to solve technical problems such as medium and high processing and accurate indexing. After years of hard work, Hangzhou Machinery has long been able to manufacture large-scale special grinding machines for corrugated rolls.
From this time I saw on the site, at least a dozen forming grinding machines were assembled and debugged, which was very courageous and gratifying. It seems that the forming mill has a new heritage. At the same time, it is also seen that a grinding center with a larger specification is being assembled, which should have a higher technical content. It is precisely because of the forming grinding machine of Hangzhou Machinery that famous manufacturers such as German Brom and Elb (ELB) can not be ignored, and there is also a strong opponent in China that cannot be underestimated. Of course, we should also see that there is still a considerable distance between this aspect and the advanced level of foreign countries. We should work tirelessly to achieve more.
Take a photo in front of the "Centennial Hangji" screen
The picture shows the CNC corrugated roller grinding machine
The picture shows a powerful forming grinding machine in assembly
The picture shows the corrugated roll workpiece to be machined
The picture shows rows of powerful forming machines in assembly and commissioning