RU222981U1 - Attachment for a belt grinder for processing workpieces with a round cross-section - Google Patents

Abstract

The utility model relates to devices and devices intended for processing round surfaces and can be used for removing paint, removing rust, grinding surfaces, satin finishing, etc. in semi-automatic mode. The attachment contains a frame 3, a base 5, configured to fix the workpiece 11 on the table of the belt grinding machine 7 and ensure parallelism of the frame 3 and the sanding belt 10 of the machine, and a unit 7 that provides rigid fixation of the workpiece 11, and in the upper part there is a handle 9 for moving the clamp 2 along the specified frame guide 3. Reliable fixation of the workpiece with a round cross-section is ensured when it rotates around its own axis with semi-automatic movement in the radial and axial direction. 2 salary f-ly, 2 ill.

Description

Technical field

The utility model relates to devices and devices intended for processing round surfaces, such as round pipes, circles made of various materials, round wooden moldings, dowels, etc. Using such a device, you can remove paint, remove rust, sand the surface, satin finish, etc. in semi-automatic mode.

State of the art

The machine closest in functionality to the claimed device is known: Machine SG2C-75 for centerless grinding of round pipes (see link: https://hohman.ru/product/stanok-sg2c-75/.

The machine is designed for stripping round pipes. The main disadvantages of the known design:

1. There is no 3rd rotating support point for fixing the pipe screen: https://drive.google.com/file/d/1C8cwPcrFJtr0zI2g7cZ4HwPXM343T7DW/view?usp=sharing A board acts as the 3rd support point, in the process of grinding the workpiece, The pipe (workpiece) rubs against a rigidly fixed plate; due to friction, it heats up and may begin to smoke or catch fire. The process of charring the board is also possible, which will lead to the formation of carbon, which will scratch and damage the workpiece.

2. Large diameter rollers. Pulley diameter 150 mm, pressure roller diameter, offhand, 100-120 mm. This size of the rollers does not allow the use of a 3rd rotating support point when working with small diameter pipes from 10 mm.

3. The design is bulky and expensive, the machine is stationary, not mobile.

4. The machine is not universal and cannot be used with other belt sanding machines.

5. A device for adjusting the speed of drawing a workpiece of an overly complex design, using an additional motor. The tape drawing speed is adjusted by changing the engine rotation speed and the roller rotation to a certain angle.

6. Lack of reliable fastening of the workpiece in the machine. Due to the absence of a 3rd rotating support point and the use of a plank as the 3rd point, fixation is carried out by pressing the drive roller of the pipe pulling mechanism. Because of this, when replacing a pipe with a pipe of a different diameter, it is necessary to place the workpiece and the board at the bottom of the abrasive and roller of the broaching device, so that the center line of the workpiece is below the axial line of the rollers. That is, there is no simple and easy fixation of workpieces of different diameters.

Disclosure of utility model

The technical task of the utility model is to create a device for a belt grinding machine (attachment), with the help of which it is possible to easily process workpieces with a round cross-section in a semi-automatic mode.

Technical result: the attachment to a belt grinding machine allows you to achieve reliable fixation of a workpiece with a round cross-section when it rotates around its own axis with semi-automatic movement in the radial and axial direction.

The specified technical result is achieved by the fact that the inventive attachment for a belt grinding machine for processing workpieces with a round cross-section contains a frame 3, a base 5, made with the possibility of fixing the workpiece 11 on the table of the belt grinding machine 7 and ensuring parallelism of the frame 3 and the grinding belt 10 of the machine . Contains a unit 7 for clamping 1 of a workpiece 11 with a clamping lock 2. In the lower part of the frame 3 there is a support bearing unit 4, and in the upper part there is a guide; the clamping unit 1 is made with a groove 8, in the lower part of which there is a bearing unit that provides rigid fixation of the workpiece 11, and in the upper part there is a handle 9 for moving the clamp clamp 2 along the specified frame guide 3.

The support bearing assembly 4 may contain two pairs of bearings.

The nozzle can be equipped with a pressure bearing unit 12 located between two pairs of bearings of the support bearing unit 4.

The utility model is illustrated by the illustrations of Figs. 1 and 2, where:

1 - clamping unit,

2 - clamp clamp,

3 - frame,

4 - frame support bearing unit,

5 - base,

6 - clamp on the table of the belt grinding machine,

7 - table of the belt grinding machine,

8 - groove,

9 - handle,

10 - sanding belt,

11 - blank.

12 - pressure bearing unit.

The base 5 performs two functions: fixing the workpiece 11 on the table of the belt grinding machine 7 and ensuring the parallelism of the frame 3 and the sanding belt 10.

There is a lock 6 on the table of the belt grinding machine 7, thanks to which the attachment can be installed on any of the existing belt grinding machines. The clamp 6 can be of any design; the fixation can be carried out by a threaded connection, an eccentric clamp, a spacer, etc.

Adjustment of the position of the nozzle relative to the sanding belt 10 is carried out by aligning the base 5 on the plane of the table of the belt sanding machine 7 at the required distance. Thanks to this, it is possible to adjust the intensity of processing of workpieces of various diameters and the ability to use the attachment on any belt grinding machine.

Frame 3 is a structure in the lower part of which there is a support bearing assembly of frame 4, which includes two pairs of bearings. In the support bearing unit of the frame 4, strictly between two pairs of bearings, there is a pressure bearing unit 12. The workpiece 11 is placed on the support bearing unit of the frame 4, which is located in the lower part of the frame 4 and is pressed by the pressure bearing unit and due to this: the workpiece is fixed evenly; the workpiece 11 has 6 rotating fixation points with the device, and not 3, as in the known machine, and the fixation force acting on all 6 points is the same. Thus, reliable fixation of the workpiece 11 is achieved with the possibility of its rotation around its own axis. Rollers made of various materials can also act as bearings.

Thanks to the clamping unit 1, the workpiece 11 is installed strictly perpendicular to the base 5. On the clamping unit 1 there is a groove 8, in the lower part of which there are one or more bearing units for rigid fixation of the workpiece 11, at the opposite end of the groove 8 there is a handle 9 for convenient movement of the clamping clamp 2 along the guide, which is located in the upper part of frame 3. Thanks to the groove 8 of the clamping unit 1, linear movement is carried out relative to frame 3 along the guide. You can install and clamp workpieces of different diameters, fixing the workpiece occurs easily, in one movement.

At the top of frame 3 there is a guide pin and a threaded rod. Instead of a threaded rod, any other threaded or eccentric connection can be used. Also, the guide pin and threaded connection can be replaced with a guide not of a round, but of a rectangular cross-section corresponding to the dimensions of the guide groove. The guide pin is needed to avoid rotation of the clamp assembly 1 around the axis of the latch. Due to this, the workpiece is securely fixed with the possibility of its rotation around its own axis. Thanks to the clamping unit 1, the workpiece 11 is installed strictly perpendicular to the base 5. Thanks to this design, workpieces of different diameters from 20 to 86 mm can be processed, and quick and easy fixation of workpieces of any diameter is also possible.

Installation and replacement of the workpiece occurs as follows: the clamping unit is loosened and the handle 9 is lifted up onto the support bearing unit 4, located in the lower part of the frame 3, a workpiece with a diameter of 20-86 mm is placed, then the workpiece clamping unit is released and fixed with the clamping clamp 2.

An example of the implementation of a utility model.

The inventive attachment for a belt grinding machine for processing workpieces with a round cross-section works as follows.

At the base of the frame 3, a workpiece 11 is placed on the bearing unit 4, which is, for example, a pipe, and is fixed by a clamping unit 1. Next, depending on the diameter of the workpiece and the type of belt grinding machine, the inventive attachment is installed on the table 7 of the belt grinding machine relative to the grinding belt 10. Depending on the required intensity of surface treatment, the angle of position of the axis of the workpiece 11 relative to the sanding belt 10 is adjusted. Next, the belt grinding machine is turned on, the sanding belt 10 sets the workpiece 11 in motion, due to which the perimeter is moved and processed in the radial and axial direction (https://drive.google.com/file/d/121lhdKX9FPGEGICzrOE6_iK531B_7c3p/view).

The inventive attachment for a belt grinding machine for processing workpieces with a round cross-section allows for semi-automatic movement of the workpiece in the radial and axial direction. In the radial position, the workpiece is moved by the sanding belt itself, and the movement of the workpiece in the axial direction is controlled by the angle of inclination of the workpiece axis relative to the sanding belt. When the sanding belt and the workpiece axis are perpendicular to each other, the workpiece remains motionless in the axial direction. When the angle of inclination changes, the speed of movement of the workpiece in the axial direction changes. The larger the angle, the faster the speed of movement of the workpiece in the axial direction. In this case, the direction of movement of the workpiece can be any. Due to this, automatic processing of the entire surface of the workpiece is achieved, leaving only the need for manual replacement of the processed workpiece with an unprocessed one. It is also possible to adjust the intensity of processing of the workpiece by changing the angle of inclination and the pressing force of the workpiece to the sanding belt.

Claims (3)

1. An attachment for a belt grinding machine for processing workpieces with a round cross-section, characterized in that it contains a frame 3, a base 5, configured to fix the workpiece 11 on the table of the belt grinding machine 7 and ensure parallelism of the frame 3 and the grinding belt 10 of the machine , and the clamping unit 1 of the workpiece 11 with a clamping clamp 2, while in the lower part of the frame 3 there is a support bearing unit 4, and in the upper part there is a guide, the clamping unit 1 is made with a groove 8, in the lower part of which there is a bearing unit that provides rigid fixation of the workpiece 11, and in the upper part there is a handle 9 for moving the clamp clamp 2 along the specified frame guide 3. 2. The attachment according to claim 1, characterized in that the support bearing assembly 4 contains two pairs of bearings. 3. The nozzle according to claim 2, characterized in that it is equipped with a pressure bearing unit 12 located between two pairs of bearings of the support bearing unit 4.