Unpowered eccentric vibration sander with automatic quick-change connector

Abstract

The utility model provides an unpowered eccentric vibration sander with an automatic quick-change interface, which relates to the field of machine tool parts and comprises a pop-rivet, a cutter handle, an eccentric block, a millstone mounting assembly mechanism and a millstone, the pop-rivet is connected to one end of the cutter handle, the other end of the cutter handle is connected with the eccentric block, and the eccentric block is connected with the millstone through the millstone mounting assembly mechanism. The pull nail is in threaded connection with the cutter handle, so that the cutter handle of the universal machine tool can be automatically and quickly replaced, the problem that a traditional pneumatic or electric eccentric grinding machine cannot be quickly and automatically replaced is solved in cooperation with the eccentric block, and the effect that multi-cutter combined machining can be conducted through a single main shaft is achieved; by adopting the modular design structure, the problem of compatibility with different eccentric distances is solved, and the problem of compatibility with millstones of different interface types is solved.

Description

Technical Field

[0001] The utility model relates to the field of machine tool parts, in particular to a non-powered eccentric vibration sanding machine with an automatic quick-change interface. Background Art

[0002] The commonly used sanding machine at present is to drive the working base plate with sandpaper on the working surface to rotate by a motor to sand the workpiece. The disadvantage of this structure is that the working base plate cannot adjust its swing amplitude, its working stroke is small, and the working efficiency is low. Chinese patent CN201151080Y discloses a sanding machine, which can swing the working base plate during rotation by arranging an eccentric sleeve on the motor shaft. However, the swing amplitude of this structure cannot be adjusted, and the improvement of work efficiency is limited. Traditional pneumatic or electric eccentric vibration sanding machines also have the following problems: (1) the problem of rapid and automatic replacement cannot be carried out, (2) the problem of compatibility with different eccentric distances cannot be solved, and (3) there is also the problem of incompatibility with grinding discs of different interface types. Utility Model Content

[0003] In view of the defects in the prior art, the utility model aims to provide a non-powered eccentric vibration sanding machine with an automatic quick-change interface.

[0004] According to the utility model, a non-powered eccentric vibration sander with an automatic quick-change interface includes a rivet, a tool handle, an eccentric block, a grinding disc installation assembly mechanism and a grinding disc. The rivet is connected to one end of the tool handle, and the other end of the tool handle is connected to the eccentric block. The eccentric block is connected to the grinding disc through the grinding disc installation assembly mechanism.

[0005] Preferably, the grinding disc installation assembly mechanism includes a grinding disc connector, a retaining spring, a spring and a double-row angular contact ball bearing. One end of the grinding disc connector is connected to the double-row angular contact ball bearing. A retaining spring and a spring are provided between the grinding disc connector and the double-row angular contact ball bearing.

[0006] Preferably, the double-row angular contact ball bearing is fixed in the eccentric block by means of a retaining spring and a spring.

[0007] Preferably, the grinding disc connector includes a connector and a connecting rod, the connecting rod is connected to the connector, the connector is threadedly connected to the grinding disc, and the connecting rod is inserted into a double-row angular contact ball bearing.

[0008] Preferably, the connecting head is located outside the eccentric block.

[0009] Preferably, the grinding disc mounting assembly mechanism further comprises a hexagon socket cylindrical head screw, and the eccentric block is connected to the tool handle via the hexagon socket cylindrical head screw.

[0010] Preferably, the hexagon socket cylindrical head screw is fixed in the eccentric block, and the hexagon socket cylindrical head screw and the double-row angular contact ball bearing are not in contact.

[0011] Preferably, the retaining spring is C-shaped.

[0012] Preferably, the spring is butterfly-shaped.

[0013] Preferably, the pull stud is threadedly connected to the tool handle.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] (1) The utility model realizes automatic quick-change tool holders for universal machine tools by connecting the tool holders with rivets and threads, and solves the problem that traditional pneumatic or electric eccentric vibration sanders cannot be quickly and automatically replaced by cooperating with eccentric blocks, thereby achieving the effect of using a single spindle to perform multi-tool combination processing;

[0016] (2) The utility model solves the problem of compatibility with different eccentricities by adopting a modular design structure, and achieves the effect of matching different eccentricity requirements by simply changing the design of the eccentric block;

[0017] (3) The utility model solves the problem of compatibility with grinding wheels of different interface types by adopting a modular design structure, and achieves the effect of matching the requirements of grinding wheels of different interface types simply by changing the grinding wheel connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the grinding disc installation assembly mechanism in the utility model.

[0021] The figure shows:

[0022] Pull nail 1, tool handle 2, eccentric block 3, grinding disc installation assembly mechanism 4 and grinding disc 5, grinding disc connecting head 4-1, retaining ring 4-2, spring 4-3, double row angular contact ball bearing 4-4, hexagon socket head screw 4-5. DETAILED DESCRIPTION

[0023] The utility model is described in detail below in conjunction with specific embodiments. The following embodiments will help those skilled in the art to further understand the utility model, but do not limit the utility model in any form. It should be pointed out that for those of ordinary skill in the art, several changes and improvements can be made without departing from the concept of the utility model. These all belong to the protection scope of the utility model.

[0024] Example

[0025] According to the utility model, a non-powered eccentric vibration sanding machine with an automatic quick-change interface is provided. Figure 1-2 As shown, it includes a rivet 1, a tool handle 2, an eccentric block 3, a grinding disc installation assembly mechanism 4 and a grinding disc 5. The rivet 1 is threadedly connected to the tool handle 2 to form a basic universal machine tool automatic quick-change tool handle. The eccentric block 3 is connected to the tool handle 2 through a hexagon socket head screw 4-5 to form an eccentric automatic quick-change tool handle with a certain eccentric distance sanding function. The eccentric block 3 is connected to the grinding disc 5 through the grinding disc installation assembly mechanism 4, and the grinding disc installation assembly mechanism 4 is fixed in the eccentric block 3 through a retaining ring 4-2 and a spring 4-3.

[0026] The grinding disc installation assembly mechanism 4 includes a grinding disc connector 4-1, a retaining spring 4-2, a spring 4-3, a double-row angular contact ball bearing 4-4 ​​and a hexagon socket head screw 4-5. The grinding disc connector 4-1 includes a connector and a connecting rod. The connecting rod is connected to the connector. The connecting rod is threadedly connected to the grinding disc 5. The connecting rod is inserted into the double-row angular contact ball bearing 4-4, and the connector is located on the outside of the eccentric block 3. A retaining spring 4-2 and a spring 4-3 are provided between the grinding disc connector 4-1 and the double-row angular contact ball bearing 4-4. The retaining spring 4-2 is C-shaped, and the spring 4-3 is butterfly-shaped. The hexagon socket head screw 4-5 and the double-row angular contact ball bearing 4-4 ​​are both located in the eccentric block 3, and are arranged in accordance with the eccentric block 3. Figure 2 The double row angular contact ball bearing 4-4 ​​is fixed in the eccentric block 3 by means of a retaining ring 4-2 and a spring 4-3.

[0027] More specifically, the grinding disc connector 4-1 is installed together by using a liquid nitrogen shrink interference fit assembly method. Since this product has no power itself, it must be used in conjunction with a power spindle with an automatic quick-change interface to achieve the functions of a traditional pneumatic or electric eccentric vibration sander.

[0028] In the description of the present application, it should be understood that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0029] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art can make various changes or modifications within the scope of the claims, which does not affect the essence of the present invention. In the absence of conflict, the embodiments of the present application and the features in the embodiments can be combined with each other at will.

Claims

1. A non-powered eccentric vibration sander with an automatic quick-change interface, characterized in that: The invention comprises a rivet (1), a tool handle (2), an eccentric block (3), a grinding disc installation assembly mechanism (4) and a grinding disc (5), wherein the rivet (1) is connected to one end of the tool handle (2), the other end of the tool handle (2) is connected to the eccentric block (3), and the eccentric block (3) is connected to the grinding disc (5) via the grinding disc installation assembly mechanism (4).

2. The unpowered eccentric vibration sander with an automatic quick-change interface according to claim 1, characterized in that: The grinding disc installation assembly mechanism (4) comprises a grinding disc connector (4-1), a retaining spring (4-2), a spring (4-3) and a double-row angular contact ball bearing (4-4); one end of the grinding disc connector (4-1) is connected to the double-row angular contact ball bearing (4-4); the retaining spring (4-2) and the spring (4-3) are arranged between the grinding disc connector (4-1) and the double-row angular contact ball bearing (4-4).

3. The unpowered eccentric vibration sander with automatic quick-change interface according to claim 2, characterized in that: The double-row angular contact ball bearing (4-4) is fixed in the eccentric block (3) via the retaining spring (4-2) and the spring (4-3).

4. The unpowered eccentric vibration sander with an automatic quick-change interface according to claim 3, characterized in that: The grinding disc connector (4-1) comprises a connector and a connecting rod, wherein the connecting rod is connected to the connector, the connector is threadedly connected to the grinding disc (5), and the connecting rod is inserted into the double-row angular contact ball bearing (4-4).

5. The unpowered eccentric vibration sander with an automatic quick-change interface according to claim 4, characterized in that: The connecting head is located outside the eccentric block (3).

6. The unpowered eccentric vibration sander with an automatic quick-change interface according to claim 2, characterized in that: The grinding disc installation assembly mechanism (4) also includes a hexagon socket head screw (4-5), and the eccentric block (3) is connected to the tool handle (2) via the hexagon socket head screw (4-5).

7. The unpowered eccentric vibration sander with an automatic quick-change interface according to claim 6, characterized in that: The hexagon socket cylindrical head screw (4-5) is fixed in the eccentric block (3), and the hexagon socket cylindrical head screw (4-5) and the double-row angular contact ball bearing (4-4) are not in contact.

8. The unpowered eccentric vibration sander with an automatic quick-change interface according to claim 2, characterized in that: The clamping spring (4-2) is C-shaped.

9. The unpowered eccentric vibration sander with an automatic quick-change interface according to claim 2, characterized in that: The spring (4-3) is butterfly-shaped.

10. The non-powered eccentric vibration sander with an automatic quick-change interface according to claim 1, characterized in that: The pull nail (1) is threadedly connected to the tool handle (2).

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