CS276492B6 - Small Product Grinding and Polishing Equipment - Google Patents

Abstract

Device for grinding and polishing the surfaces of small products clamped on a plate (5) adjacent to the front surface of a rotary tool (14) and connected to a swing arm (3). The plate (5) is connected to the swing arm (3) by means of a clamping head (4), which is rotatable relative to the swing arm (3) and is connected by means of a shaft (1) to a turning device (6). The arm (3) is connected to a linear motor (10) by means of a pin (11).

Description

Equipment for grinding and polishing the surfaces of small products. ·

Field of technology

The invention relates to a device for grinding and polishing the surfaces of small products, 9 by rotating arms, which ensure the rotation of grinding discs with glued small products from the rest position, or exchange and control, to the active position, ie to the tool, within the floor plan of the tool. of these arms is adapted so that the magnitude of the force of the control motor, i.e. the cutting pressure, can be controlled as a function of the varying specific pressure during machining.

BACKGROUND OF THE INVENTION Fate Known devices for: grinding and polishing surfaces have arms that can be tilted out of the floor plan of the tool for the purpose of turning grinding wheels to an exchangeable or control position with a so-called workpiece upwards, or arms are only raised workpiece inspections. In the first case, the arms swing for a considerable radius, dangerously interfering with the operating space. In the second case, when the operator places the plates under the shoulders, the operator's hands get into the dangerous vicinity of the rotating tool. None of the above devices is equipped with a system for controlling the cutting pressure.

The essence of the invention.

These disadvantages are eliminated by a device where the products are clamped on a plate adjacent to the end face of a rotary tool according to the invention, the essence of which is that the plate is connected to the swinging arm . The pivot arm is suspended pins in bearings in which it oscillates to and from the tool by the action of a linear motor connecting the arm and the frame of the device.

On the one hand, the above-mentioned design substantially increases the safety of operation of the device, favors machining conditions, while shortening the necessary technological times and improving the quality of machining.

Overview of pictures in the drawing '

The accompanying drawing shows an exemplary embodiment of a device according to the invention in section.

Example of an embodiment of the invention

The rotating shaft 1 is set by means of bearings 2 in the arm 3. On one side of the shaft 11 there is a clamping head 4 of the grinding plate 5. On the opposite side of the shaft 6 there is a rotating device 6. pin £ 8. The arm 3 is set by its pin 7 on bearings 8 in the frame 9, in the upper part of which a rectilinear motor 10 is pivotally connected, ensuring the swinging of the arms and the pressure to the cut. In the device, in each case two frames 9 together with the arms 3 are mounted on a stand 12, in which a spindle 13 with tools 14 and a tool drive 15 is located.

For changing workpieces, resp. grinding discs 5 with workpieces, the upper turn of the pivoting arms 3 is used, the clamping head 4 being rotated away from the tool 14 and the actuator 16 overcoming the pressure of the clamping spring 17, whereby the disc 5 can be removed from the clamping pin 18. After replacing the disc 5 17 and the pin 18 clamps the plate 51 in the head 4, followed by turning the head 4 to the tool 14 by the turning device 6 by means of the shaft 6. After turning, the linear motor 10 lowers the arms 3 towards the tool 14 and, after the workpiece plate 5 abuts the tool 14, the disjunction element changes the function of the linear motor 10, which begins to exert a controlled pressing force in the cut. After machining, the sequence of functions follows in the reverse order to that specified.

Claims (2)

PATENT CLAIMS Device for grinding and polishing the surfaces of small products clamped on a plate adjacent to the front surface of a rotary tool and connected to a pivoting arm, characterized in that the plate (5) is connected to the pivoting arm (3) by means of a clamping head (4) it is rotatable relative to the swivel arm (3) and is connected by means of a shaft (1) m by a turning device (6). Device according to Claim 1, characterized in that the pivot arm (3), suspended by pins (7) in bearings (8), is connected to one part of a linear motor (10) by means of a pin (11), the other part of which is pin mounted on the frame of the device.