External eccentric device adaptive to grinding and polishing machine

Abstract

The utility model discloses an external eccentric device adaptive to a grinding and polishing machine, which relates to the technical field of grinding and polishing machines, and comprises an eccentric jacket, a mounting groove is arranged in the eccentric jacket, an eccentric flange is arranged in the mounting groove, the axis of the eccentric jacket is not corresponding to the axis of the eccentric flange, and the eccentric flange is rotationally connected with the eccentric jacket through a rotating piece; the rotating power shaft on the grinding and polishing machine body is installed in the fixing groove, the eccentric flange is in butt joint with the grinding disc, the rotating power shaft of the grinding and polishing machine drives the eccentric outer sleeve to rotate, the eccentric outer sleeve drives the first bearing and the second bearing to rotate, the eccentric flange is shaken through inertia force, and the eccentric flange freely rotates. Due to the fact that the axis of the eccentric outer sleeve does not correspond to the axis of the eccentric flange, the grinding disc is driven to rotate eccentrically, the grinding efficiency is improved, the grinding disc conducts eccentric grinding on the workpiece, the grinding process is completed, and eccentric grinding can be conveniently conducted on the annular or special-shaped workpiece.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing machines, and specifically relates to an external eccentric device adapted to a grinding and polishing machine. Background Technique

[0002] A grinding and polishing machine is a professional device mainly used for leveling and grinding and polishing the surface of workpieces. There are various types of grinding and polishing machines, which are suitable for the surface polishing treatment of metallographic materials. The working principle of a metallographic grinding and polishing machine is that the motor drives the eccentric shaft to rotate at a high speed, generating a centrifugal force to separate the workpiece from the grinding disc. Under the action of the centrifugal force, a certain relative speed difference (i.e., rotational speed difference) is generated between the workpiece and the grinding disc. The grinding and polishing processing method of the workpiece is carried out by using the cutting force generated by this relative movement.

[0003] The eccentric device of a grinding and polishing machine is one of its key components, mainly used to achieve non-uniform motion during the grinding and polishing process to achieve a better grinding and polishing effect. The design and working principle of this device are usually relatively complex, but the basic idea is to change the rotation center or motion trajectory of the grinding and polishing head to generate a certain eccentricity relative to the workpiece surface, thereby optimizing the grinding and polishing effect. In the eccentric device of a grinding and polishing machine, key components such as an eccentric shaft, an eccentric block, and a transmission mechanism may be included. The eccentric shaft is the core of the eccentric device. Through a specific design, the center line of the shaft does not coincide with the rotation center, thereby generating an eccentric effect. The eccentric block is usually fixed on the eccentric shaft and moves with the rotation of the eccentric shaft. The shape and size design of the eccentric block will directly affect the motion trajectory of the grinding and polishing head and the grinding and polishing effect. The eccentric outer sleeve of a grinding and polishing machine is a key component in the grinding and polishing machine, and it plays an important role during the grinding and polishing process. As the name implies, the eccentric outer sleeve is a component with an eccentric structure installed on the main shaft of the grinding and polishing machine. Its main function is to generate a certain centrifugal force when the grinding and polishing head rotates through its eccentric design, thereby realizing processing operations such as grinding and polishing of the workpiece surface. This design enables the grinding and polishing machine to complete processing tasks more efficiently, improving processing accuracy and surface quality. The eccentric outer sleeve is widely used in various grinding and polishing machines, especially in occasions where high processing accuracy and surface quality are required. For example, in the fields of metal processing, glass processing, and ceramic processing, the eccentric outer sleeve plays an important role.

[0004] In the existing grinding and polishing machine equipment, the grinding and polishing effect of workpieces is often affected by the design of the equipment itself. Especially when processing ring-shaped or specially required workpieces, traditional grinding and polishing machine equipment often has difficulty meeting the processing requirements of high precision and high efficiency. For this reason, we provide an external eccentric device adapted to a grinding and polishing machine. Content of the Utility Model

[0005] The technical problem solved by the present utility model is as follows: In existing grinding and polishing machine equipment, the grinding and polishing effects on workpieces are often affected by the design of the equipment itself. Especially when processing annular or specially required workpieces, traditional grinding and polishing machine equipment often fails to meet the processing requirements of high precision and high efficiency.

[0006] The present utility model can be realized through the following technical solutions: An external eccentric device adapted to a grinding and polishing machine, including an eccentric outer sleeve. An installation groove is provided inside the eccentric outer sleeve, and an eccentric flange is provided in the installation groove. The axis of the eccentric outer sleeve does not correspond to the axis of the eccentric flange, and the eccentric flange and the eccentric outer sleeve are rotationally connected through a rotating member.

[0007] A further technical improvement of the present utility model lies in that: A bearing groove is provided in the installation groove, and the rotating member is rotatably installed in the bearing groove.

[0008] A further technical improvement of the present utility model lies in that: The rotating member includes a first bearing and a second bearing. The first bearing and the second bearing are sequentially rotatably installed in the bearing groove, and the first bearing and the second bearing are arranged along their axes. The eccentric flange is sleeved inside the first bearing and the second bearing.

[0009] A further technical improvement of the present utility model lies in that: A gland nut is rotatably connected to the outer end of one end of the eccentric flange. The gland nut is located between the eccentric flange and the first bearing, and the gland nut is located in the installation groove.

[0010] A further technical improvement of the present utility model lies in that: A stop block groove is provided inside one end of the eccentric flange, and a stop block is provided in the stop block groove.

[0011] A further technical improvement of the present utility model lies in that: Insertion grooves that communicate with each other are provided in the eccentric flange and the stop block. A fixing groove is provided on the eccentric outer sleeve, and the fixing groove does not communicate with the insertion grooves.

[0012] Compared with the prior art, the present utility model has the following beneficial effects:

[0013] (1) In this device, the rotating power shaft on the main body of the grinding and polishing machine is installed in the fixing groove, and the eccentric flange is docked with the grinding disc. The rotating power shaft of the grinding and polishing machine drives the eccentric outer sleeve to rotate. The eccentric outer sleeve drives the first bearing and the second bearing to rotate. The eccentric flange is swung by inertia force, and the eccentric flange rotates freely. Since the axis of the eccentric outer sleeve does not correspond to the axis of the eccentric flange, the grinding disc is driven to perform eccentric rotation, improving the grinding efficiency, causing the grinding disc to perform eccentric grinding on the workpiece, thereby completing the grinding process, and facilitating eccentric grinding of annular or specially shaped workpieces;

[0014] (2) The insertion slot can provide sufficient space inside the eccentric flange and the stop block. When the eccentric flange and the stop block rotate rapidly, the air in the installation slot expands due to heat, and the insertion slot can store the heated air, thereby reducing the failure rate of the entire device. Description of the Drawings

[0015] For the convenience of those skilled in the art to understand, the following further describes the present utility model in conjunction with the drawings.

[0016] Figure 1 It is a schematic structural view of the exploded state of the present utility model;

[0017] Figure 2 It is a three-dimensional structural view of the present utility model;

[0018] Figure 3 It is a schematic internal structure view of the present utility model;

[0019] Figure 4 It is a schematic sectional structure view of the present utility model.

[0020] In the figure: 1, eccentric outer sleeve; 2, installation slot; 3, eccentric flange; 4, first bearing; 5, second bearing; 6, bearing slot; 7, gland nut; 8, stop block slot; 9, stop block; 10, insertion slot; 11, fixing slot. Detailed Embodiment

[0021] To further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in conjunction with the drawings and preferred embodiments, details the specific embodiments, structures, features, and effects according to the present utility model.

[0022] Please refer to Figures 1-4 As shown, the present utility model proposes an external eccentric device adapted to a grinding and polishing machine; it includes an eccentric outer sleeve 1, an installation slot 2 is provided inside the eccentric outer sleeve 1, an eccentric flange 3 is provided inside the installation slot 2, the axis of the eccentric outer sleeve 1 does not correspond to the axis of the eccentric flange 3, and the eccentric flange 3 and the eccentric outer sleeve 1 are rotationally connected through a rotating member.

[0023] A bearing slot 6 is provided inside the installation slot 2, and the rotating member is rotatably installed inside the bearing slot 6; the bearing slot 6 can limit the first bearing 4 and the second bearing 5, improving the stability of the first bearing 4 and the second bearing 5 during rotation.

[0024] The rotating member includes a first bearing 4 and a second bearing 5, the first bearing 4 and the second bearing 5 are sequentially rotatably installed inside the bearing slot 6, and the first bearing 4 and the second bearing 5 are arranged along their axes, and the eccentric flange 3 is sleeved inside the first bearing 4 and the second bearing 5.

[0025] One end of the eccentric flange 3 is rotatably connected to a gland nut 7, which is located between the eccentric flange 3 and the first bearing 4, and is located in the mounting groove 2; the gland nut 7 is fixed to the mounting groove 2, and the gland nut 7 can limit one side of the first bearing 4 and the second bearing 5, and the eccentric flange 3 can rotate in the gland nut 7, thereby improving the stability of the eccentric flange 3 during rotation.

[0026] A stopper groove 8 is provided in one end of the eccentric flange 3 , and a stopper 9 is provided in the stopper groove 8 ; the stopper 9 can fix one end of the eccentric flange 3 , and the stopper 9 can also rotate in the mounting groove 2 .

[0027] The eccentric flange 3 and the stopper 9 are provided with connected plug-in grooves 10, and the eccentric outer sleeve 1 is provided with a fixed groove 11. The plug-in groove 10 can ensure that there is enough space in the eccentric flange 3 and the stopper 9. When the eccentric flange 3 and the stopper 9 rotate rapidly, the air in the installation groove 2 expands due to heat, and the plug-in groove 10 can store the heated air, thereby reducing the failure rate of the entire device. The fixed groove 11 is not connected with the plug-in groove 10, so as to ensure that the eccentric flange 3 rotates eccentrically on the eccentric outer sleeve 1.

[0028] When the utility model is in use, the rotating power shaft on the grinding and polishing machine body is installed in the fixed groove 11, and the eccentric flange 3 is docked with the grinding disc, and the rotating power shaft of the grinding and polishing machine drives the eccentric outer sleeve 1 to rotate, and the eccentric outer sleeve 1 drives the first bearing 4 and the second bearing 5 to rotate, and swings the eccentric flange 3 through the inertial force, and the eccentric flange 3 rotates freely. Since the axis of the eccentric outer sleeve 1 does not correspond to the axis of the eccentric flange 3, the grinding disc is driven to rotate eccentrically, causing the grinding disc to eccentrically grind the workpiece, thereby completing the grinding process;

[0029] The plug-in slot 10 can ensure sufficient space in the eccentric flange 3 and the stopper 9. When the eccentric flange 3 and the stopper 9 rotate rapidly, the air in the mounting slot 2 expands due to heat, and the plug-in slot 10 can store the heated air, thereby reducing the failure rate of the entire device.

[0030] The above description is only a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any technical personnel in this field can make some changes or modify the technical contents disclosed above into equivalent embodiments without departing from the scope of the technical solution of the present invention. However, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. An external eccentric device adapted for a grinding and polishing machine, characterized in that: The invention comprises an eccentric outer sleeve (1), wherein a mounting groove (2) is provided in the eccentric outer sleeve (1), wherein an eccentric flange (3) is provided in the mounting groove (2), wherein the axis of the eccentric outer sleeve (1) does not correspond to the axis of the eccentric flange (3), and the eccentric flange (3) and the eccentric outer sleeve (1) are rotatably connected via a rotating member.

2. The external eccentric device adapted for a grinding and polishing machine according to claim 1, characterized in that: A bearing groove (6) is provided in the installation groove (2), and the rotating member is rotatably installed in the bearing groove (6).

3. The external eccentric device adapted for a grinding and polishing machine according to claim 2, characterized in that: The rotating member comprises a first bearing (4) and a second bearing (5), wherein the first bearing (4) and the second bearing (5) are rotatably mounted in a bearing groove (6) in sequence, and the first bearing (4) and the second bearing (5) are arranged along their axes, and the eccentric flange (3) is sleeved in the first bearing (4) and the second bearing (5).

4. The external eccentric device adapted for a grinding and polishing machine according to claim 3, characterized in that: One end of the eccentric flange (3) is rotatably connected to a gland nut (7), the gland nut (7) is located between the eccentric flange (3) and the first bearing (4), and the gland nut (7) is located in the mounting groove (2).

5. The external eccentric device adapted for a grinding and polishing machine according to claim 1, characterized in that: A stopper groove (8) is provided in one end of the eccentric flange (3), and a stopper (9) is provided in the stopper groove (8).

6. The external eccentric device adapted for a grinding and polishing machine according to claim 5, characterized in that: The eccentric flange (3) and the stopper (9) are provided with connected plug-in grooves (10), and the eccentric outer sleeve (1) is provided with a fixing groove (11), and the fixing groove (11) is not connected with the plug-in groove (10).

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