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Universal OD grinding machine, model 3L10V(A,S)F2 with positional program control system

The machine of 3L10V(A,S)F2 model is designed for external and internal grinding of cylindrical, conical and end surfaces in the installed centers, three-jaw or collet chuck, as well as with the help of additional appliances.

The machine can be used in a piece, small-lot, repair or tool production.

The degree of automation of the machine – programmed control (positional and rectangular systems).

Climatic version of the machine - NF4 in accordance with GOST 15150

Machine placement category – 4.1 in accordance with GOST 15150

Manufacturing time
Within a period of about 90 days!
Warranty
12 months!
We will carry out
check out and start up

MACHINE DESIGN BRIEF DESCRIPTION

Bed plate and tables

The bed plate is the principal bearing element that determines the relative position of the machine units. The bed frame is made of special fine-grained cast iron and is twice aged. The bed plate design is highly rigid and vibration-resistant.
The bed plate top has V-shaped and flat cast iron guides with a system of channels for supplying and collecting lubricant. The design of the bed partitions provides for removal and collection of waste oil from the guides lubrication system in the bed crankcase.
The lower table, on which the upper rotary table is mounted, moves along the longitudinal flat and V-shaped guides of the bed plate. The tables move along the bed plate guides by means of a ball screw and a servo drive.
A movable protection cover is installed on the table to protect a worker from emulsion splashes.

Grinding wheelhead

The grinding wheelhead is mounted on the slide bars, which it rotates on, and also has the ability to additionally move manually along the dovetail type guides using a screw located behind the headstock. The principal elements of the grinding wheelhead is the spindle, which is mounted in the housing on self-aligning hydrodynamic plain bearings.

Slide bars

The slide bars consist of two body parts: lower (rotary) and upper (movable). The upper slide bars, which the grinding wheelhead with a wheel drive is mounted on, move along the lower ones along the V-shaped and flat guides. A vertical shaft transmitting the movement to the lead screw is mounted in the lower slide bars along the axis of rotation.

Headstock

The headstock consists of a plate and a body, which can be rotated relative to the plate. The headstock is driven by an electric motor mounted on a rotary housing via a belt drive. In the body, a spindle on three self-aligning liner hydrodynamic plain bearings, rotated from the sheave through the faceplate, screws and a special drive piece relieving of radial forces, is installed.

Deadhead

The deadhead body is mounted on the upper table of the machine. A steel sleeve is pressed into the body, in which a hardened steel spindle moves. The spindle is spring-loaded, which allows one to create the necessary force when fixing the product in the centers. The spindle is moved manually.

Hole grinding device (ID grinding appliance)

The appliance for internal grinding consists of a cast iron body fixed to a mounting bracket of the grinding wheelhead. The device is lowered manually into the working position. An electrical spindle is installed in the body. The electrical spindle is designed for high-speed, high-performance internal grinding.

External grinding wheel drive

By the electric motor through a poly-V-belt transmission.

Internal grinding wheel drive

Directly by the electrical spindle.

Workpiece drive

The rotation is transmitted to the drive faceplate from the AC motor through a belt drive with sheaves,.

Table drive

The rotation is transmitted to the nut and the lead screw from the servomotor through the clutch and the helical reducer.

Cross feed drive

From the servomotor, rotation is transmitted through the clutch and the planetary reducer to the bevel pair and then to the lead screw, which rotates in the nut and moves the upper slide bars, which the grinding wheelhead is fixed on.

Machine lubrication system

Grinding wheelhead spindle lubrication system
The spindle lubrication system includes a tank, a gear pump, a filter and a flow switch.

Guides lubrication system

The system is powered by the pump of the lubrication station. The lubrication of the guides is periodic.

Dressing tools

The table-top folding-back dressing device is designed for diamond dressing of the grinding wheel on the face. The diamond feed is carried out by the handwheel of the feed mechanism. Longitudinal feed (table speed while dressing) is selected depending on the required roughness of the polished items.
At the customer's request, the machine can be equipped with an angle and radius dressing device.

Cooling system

The device for supplying and cleaning coolant consists of a free-standing unit which a pump, a magnetic separator, a filter-conveyor (for machine of A and C accuracy classes) and supply lines are mounted on. The magnetic separator and the filter-conveyor are designed to clean the coolant.

Electrical equipment characteristics

To control the operation of the machine, a DVP-SV2 “DeltaElectronics” series controller, connected to the operator's touch pad, a frequency converter and two servo drives via the CAN-Open network, is used.

Information on electrical equipment power supply system

Power supply to the machine from the workshop network - 5-core cable according to the 3P-1N-1PE scheme. The connection point in the machine is the entry into the electrical cabinet from below. The connection point in the machine is the entry to the electrical cabinet from the bottom.
The grounding of the machine is done by connecting it to the workshop grounding system. The machine has designated ground nodes for connecting grounding conductors to them.

The control system includes the following processing cycles:

- manual longitudinal grinding mode;
- manual plunge-cut grinding mode;
- manual internal grinding mode;
- manual grinding wheel dressing mode
- automatic longitudinal grinding mode;
- automatic plunge-cut grinding mode.

Standard supply

  • Cooling unit complete with magnetic separator (for machine accuracy class A and C with a filter conveyor)
  • A set of electrical equipment based on the Delta controller
  • Working area guard
  • Three-jaw lathe chuck Ø 80 mm
  • Chuck flange
  • Grinding wheel flange (set)
  • Non-rotating thrust centers – 2 pieces
  • Thrust centers
  • Driving shackles
  • Dressing diamond
  • Folding-back grinding wheel dressing device
  • Service tools
  • Grinding wheel dresser
  • When completing the machine with an internal grinding device: - an internal grinding mandrel - a internal grinding device with an electrical spindle

Options and additional supply

  • Adjustable rests (1 set.)
  • Adjustable collet clamp
  • Device for the grinding wheel static balancing
  • Radius grinding wheel dresser
  • Grinding wheels

Warranty for "Universal OD grinding machine, model 3L10V(A,S)F2 with positional program control system"

The equipment has a 12 months warranty period, from the moment the customer accepts commissioning work at its premises, but not more than 18 months from the date of shipment to the Customer, provided that the customer observes the rules of operation, storage, transportation and installation.

Useful information:

Installation of abrasive wheels in the test bench chamber