The roller of the diamond dresser is a newly developed dressing tool. Compared to single-point diamond dressers, it significantly reduces dressing time during non-linear dressing and makes it easier to dress various complex shaped surfaces. The methods of diamond dressing are divided into plunge roller dressing and oscillating wheel dressing. The structure of the plunge dresser is simpler than that of the oscillating dresser, making it more suitable for actual production. In plunge wheel trimming, similar to external cylindrical plunge grinding workpieces, the roller rotates with an electric motor and performs plunge motion according to the grinding wheel for dressing. The main parameters characterizing plunge wheel trimming are trimming speed ratio, trimming feed, and light maintenance rotation speed.

　　Diamond dresserThe roller of the diamond dresser is a newly developed dressing tool, which significantly reduces dressing time during non-linear dressing compared to single-point diamond dressers, making it easier to dress various complex shaped surfaces. The methods of diamond dressing are divided into plunge roller dressing and oscillating wheel dressing. The structure of the plunge dresser is simpler than that of the oscillating dresser, making it more suitable for practical production. In plunge wheel trimming, similar to external cylindrical plunge grinding workpieces, the roller rotates with an electric motor and performs plunge motion according to the grinding wheel for dressing. The main parameters characterizing wheel plunge trimming are trimming speed ratio, trimming feed, and light maintenance rotation speed. Below is an introduction to the application of plunge-type diamond dressers.

　　The diamond dresser forms a groove resembling a peach pit, utilizing existing floor grinders instead of vertical grinders for polishing its grooves, designing a diamond roller dresser.

　　The support is installed at the front part of the machine bed and can be adjusted longitudinally and laterally on the base. The roller shaft is a sleeve spindle with a double-support structure composed of two sets of angular contact ball bearings; the spindle drive uses wedge belt transmission, which is soft and stable. The driving motor is a lightweight aluminum shell wireless speed-regulating motor that uses a stepless speed-regulating motor to maintain the linear velocity ratio between the rollers and four wheels within a certain range. As the grinding wheel wears down, its linear velocity decreases; at this point, it is necessary to appropriately reduce the roller's rotation speed to achieve effective dressing. The transfer from dressed plunges has been changed to four-wheel transfer; during dressing, the drum remains stationary while using the original machine's four-wheel transfer hand crank to achieve manual transfer for dressed plunging motion.

       

　　Additionally, when all four wheels are stationary, wheel feed can be modified. At this point, the structure of the dresser becomes more complex. That is to say, linear guide rails, ball screws, stepper motors can be used to design simple CNC systems for wheel trimming motion. Its action program consists of fast forward and slow advance.

　　Considerations for diamond dressers

　　Due to characteristics such as short dressing time, ability to modify various complex surfaces, maintaining good profile accuracy, and convenient operation in diamond roller forming methods, the effectiveness of diamond dressers has gradually been recognized and increasingly applied in production. However, please pay attention to the following considerations when designing, manufacturing and using wheels:

　　The particle size of diamonds should be about twice as coarse as that of refined grinding wheels; diamond particles should be roughly uniform in size with shapes close to spherical; typical particle sizes range from #36 ~ #100.

　　Generally speaking, it is recommended that at contact points between wheels use linear velocity direction trends with a wheel linear velocity-to-wheel linear velocity ratio (qd value) between 0.3 ~ 0.7 but not exceeding 1. During trimming operations, each rotation should cut into approximately 0.5 ~ 1 meter per turn; total amount trimmed from each grinding wheel should be around 0.02 ~ 0.04 millimeters with minimal repair time compressed as much as possible. The manufacturing error for diamond rollers should be less than about half of workpiece tolerances; clearance between roller holes and installed bearings should be between 2 ~ 4 meters.

　　Natural or synthetic diamonds can be used; synthetic diamonds should utilize high-strength grade diamonds.

　　When manufacturing rollers for diamond dressers using ordinary precision rollers can employ external plating methods or sintering methods; high-precision and complex cotton rollers can apply internal plating methods while grinding.

　　Diamond dresserWhen dressing grinding wheels follow an action program consisting of fast forward (without touching grinding wheels) slow advance (delivering according to required plunge speeds) light water exit actions; otherwise wheel life cannot be guaranteed.