CN207578049U - A kind of surface grinding machine - Google Patents

Abstract

The utility model proposes a surface grinder, which includes a grinding wheel, a workbench, and an electromagnetic sucker installed on a frame. The electromagnetic sucker is used to absorb workpieces made of iron; a positioning mechanism is installed on the workbench, and the positioning mechanism includes a rocker. The rocker is connected with a gear through the shaft, and the gear meshes with the rack. One end of the rack is connected with a slider that can extend out of the worktable, and the other end is a free end; the slider is in contact with the workpiece, and is located in the direction of the grinding wheel. The positioning mechanism There is a limit device for limiting the displacement of the slider inside. The invention has the following beneficial effects: when the workpiece is processed, it no longer only receives the adsorption force of the electromagnetic chuck, and at the same time, the tangential force is balanced in the unscrewing direction of the grinding wheel, which ensures the safety of processing and more reliable positioning.

Description

a surface grinder

technical field

The utility model relates to the field of machine tool processing, in particular to a surface grinder.

Background technique

A grinder is a machine tool that uses abrasive tools to grind the surface of a workpiece. Most grinders use high-speed rotating grinding wheels for grinding, and a few use other abrasive tools such as oil stones, abrasive belts, and free abrasives for processing. Grinding machine, ultra-finishing machine tool, abrasive belt grinding machine, grinding machine and polishing machine, etc., the grinding machine can be used for grinding with high precision and small surface roughness, and can also perform high-efficiency grinding, such as powerful grinding.

The price of the grinding machine is mainly steel and castings. After the electromagnetic chuck is energized, it will generate magnetism to attract the workpiece, which is equivalent to that after the fixture fixes the workpiece, the grinding wheel rotates and grinds the workpiece; but when the magnetic force is insufficient and the tangential force is too large, the workpiece will be crushed by the grinding wheel. miss.

Utility model content

In order to solve the above-mentioned technical problems, the utility model proposes a surface grinder, which includes a grinding wheel, a workbench, and an electromagnetic chuck installed on a frame, and the electromagnetic chuck is used for absorbing workpieces whose material is iron;

A positioning mechanism is installed on the worktable, the positioning mechanism includes a rocker, the rocker is connected with a gear through a shaft, the gear is engaged with the rack, and one end of the rack is connected with a handle that can extend out of the worktable Slider, the other end is a free end;

The slider is in contact with the workpiece and is located in the direction in which the grinding wheel is unscrewed, and a limiting device for limiting the displacement of the slider is provided in the positioning mechanism.

Preferably, the material of the slider is iron that can generate magnetism.

Preferably, the cross section of the slider is square.

Preferably, the limiting device includes setting a limiting block at the bottom of the slider, and setting a baffle under the free end of the rack, and the limiting block is located under the workbench.

A surface grinder proposed by the utility model has the following beneficial effects: when the workpiece is processed, it does not only receive the adsorption force of the electromagnetic chuck, but at the same time the tangential force is balanced in the rotation direction of the grinding wheel, which ensures the safety of processing and makes the positioning easier. reliable.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present utility model more clearly, the following will briefly introduce the drawings required for the description of the embodiments.

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the top view of the utility model;

Among them, 1-table, 2-electromagnetic chuck, 3-grinding wheel, 4-workpiece, 5-slider, 6-handle, 61-handle, 7-gear, 8-rack, 9-baffle, 10- limit block.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.

As shown in Figure 1, the utility model proposes a kind of surface grinding machine, comprises emery wheel 3, workbench 1, the electromagnetic chuck 2 that is installed on the workbench 1, and described electromagnetic chuck 2 is used for the workpiece 4 that adsorption material is iron; A positioning mechanism is installed on the workbench 1, and the positioning mechanism includes a rocker 6, which is connected with a handle 61 to facilitate the rotation of the rocker 6; the rocker 6 is connected with a gear 7 through a shaft, and the gear 7 meshes with the rack 8 , one end of the rack 8 is connected with a slider 5 that can extend out of the workbench 1, and the other end is a free end; the slider 5 is offset against the workpiece 4, and is located in the direction in which the grinding wheel 3 is unscrewed. 5 displacement limit device.

The limiting device includes setting a limiting block 10 at the bottom of the slide block 5, and setting a baffle plate 9 below the free end of the rack 8. The limiting block 10 is located below the workbench 1 and is used to limit the highest point of the rise of the sliding block 5. , will not lift away from the workbench 1, and the baffle plate 9 is used to limit the lowest point where the slide block 5 falls, so as to ensure that the upper surface of the slide block 5 is not lower than the workbench 1.

The up and down movement of the slider 5 realizes the positioning of the workpiece 4. Under the condition that the upper surface of the slider 5 is lower than the upper surface of the workpiece 4, the workpiece 4 is offset against the slider 5, and the material of the slider 5 is iron that can generate magnetism. , when the electromagnetic chuck 2 of the surface grinder is energized to generate magnetism, the electromagnetic chuck 2 absorbs the workpiece 4, and since the workpiece 4 is offset against the slider 5, the slider 5 also generates magnetism. On the one hand, it plays the role of position limitation.

After the grinding wheel 3 starts to rotate, the workpiece 4 is subjected to a tangential force in the direction of rotation, and because the slider 5 is at the end of the direction of the tangential force, the tangential force is balanced, and the workpiece 4 will not be affected by the tangential force due to insufficient electromagnetic attraction. If it is too large, it will fly out.

The rocking handle 6 protrudes from the outside of the grinding machine. By rotating the handle 61, the rotation of the gear 7 is controlled. Forward rotation or reverse rotation can make the gear 7 rotate in the forward and reverse directions, thereby driving the rack 8 to move upward or downward, thereby controlling the slider 5 the height of.

Movement method:

During processing, according to the height of the workpiece 4, the handle 6 is rotated to control the highest surface of the slider 5 to be lower than the highest surface of the workpiece 4 to be processed, so that the grinding wheel 3 does not hit the slider 5, and the workpiece 4 is moved to make the workpiece 4 The edge of the magnetic chuck 5 is offset against the slider 5, which plays the role of positioning. When the power supply of the electromagnetic chuck 2 is turned on, the workpiece 4 will be fixed, and the electromagnetic chuck 2 will generate magnetism, and the slider 5 that offsets the workpiece 4 will also generate magnetism. 5 also sucks the workpiece 4 at the same time; when the power of the grinding wheel 3 is turned on, the grinding wheel 3 rotates and contacts the workpiece 4 for grinding. Since the slider 5 is located in the rotation direction of the grinding wheel 3, the tangential force applied by the grinding wheel 3 to the workpiece 4 is supported. , the suction force of the slider 5 also ensures that the workpiece 4 will not move at the same time, and plays the role of positioning and support.

Various modifications to the embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (4)

1. A surface grinder, characterized in that: It includes a grinding wheel, a workbench, and an electromagnetic chuck installed on the frame, and the electromagnetic chuck is used to absorb workpieces made of iron; A positioning mechanism is installed on the worktable, the positioning mechanism includes a rocker, the rocker is connected with a gear through a shaft, the gear is engaged with the rack, and one end of the rack is connected with a handle that can extend out of the worktable Slider, the other end is a free end; The slider is in contact with the workpiece and is located in the direction in which the grinding wheel is unscrewed, and a limiting device for limiting the displacement of the slider is provided in the positioning mechanism. 2. A surface grinder according to claim 1, characterized in that: the material of the slider is iron that can generate magnetism. 3. A surface grinder according to claim 1, characterized in that: the cross section of the slider is square. 4. A surface grinder according to claim 1, characterized in that: the limiting device comprises a limiting block at the bottom of the slider, and a baffle plate is set under the free end of the rack, the limiting Bit blocks are located under the workbench.