Eccentric positioning mechanism

Abstract

The utility model discloses an eccentric positioning mechanism which is matched with a polishing mechanism, the polishing mechanism comprises a mounting base and a plurality of polishing assemblies which are arranged at intervals in the length direction of the mounting base, and each polishing assembly comprises an eccentric motor and a polishing head which is in transmission connection with the eccentric motor. The eccentric positioning mechanism comprises a plurality of eccentric positioning blocks corresponding to the plurality of grinding assemblies, and eccentric positioning grooves allowing the grinding heads to be placed therein are formed in the eccentric positioning blocks. The eccentric positioning mechanism provided by the utility model can be used for positioning a plurality of polishing heads for polishing, so that abrasive paper is convenient to attach, and the production efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of grinding equipment, and particularly relates to an eccentric positioning mechanism. Background Art

[0002] Chinese patent CN11 6460719A discloses an automatic polishing and grinding machine, in which the grinding mechanism is fixed on the Z-axis module, and the Z-axis module moves up and down to drive the grinding mechanism to move. The waste sandpaper box module is fixed on the X-axis module, and the X-axis module and the Y-axis module are connected to realize forward / backward and left / right movement. When the grinding mechanism moves downward through the Z-axis module, it reaches the grinding position and starts to grind the product. After the product is polished, the sandpaper needs to be replaced.

[0003] Because the grinding head is fixed on the eccentric motor shaft, the shaft difference between the eccentric motor and the concentric motor is 2.5mm. The position of the multi-station grinding head cannot be unified each time it stops, resulting in the inability to fully center the multiple grinding heads for sticking sandpaper. Utility Model Content

[0004] The utility model aims to provide an eccentric positioning mechanism, which can realize the uniform centering of the positions of multiple grinding heads and facilitate the pasting of sandpaper.

[0005] Based on the above problems, the technical solution provided by the utility model is:

[0006] An eccentric positioning mechanism cooperates with a grinding mechanism, the grinding mechanism comprises a mounting seat and a plurality of grinding assemblies arranged at intervals along the length direction of the mounting seat, the grinding assembly comprises an eccentric motor and a grinding head drivingly connected to the eccentric motor, characterized in that the eccentric positioning mechanism comprises:

[0007] A plurality of eccentric positioning blocks correspond to the plurality of grinding components, and the eccentric positioning blocks are provided with eccentric positioning grooves for the grinding heads to be placed therein.

[0008] In some embodiments, the grinding head includes a connecting rod portion connected to the eccentric motor at one end and a grinding portion connected to the other end of the connecting rod portion.

[0009] In some embodiments, an opening is provided at one end of the eccentric positioning groove and is adapted to the connecting rod portion.

[0010] In some embodiments, the eccentric positioning groove includes a guide section and a positioning section which are arranged in sequence, and the guide section extends from one end of the positioning section to the outside of the positioning section.

[0011] In some embodiments, the positioning section is an arc-shaped groove, and the guiding section is a convex arc-shaped structure protruding toward the positioning section.

[0012] In some of these embodiments, a buffer layer is attached to the inner wall of the eccentric positioning groove.

[0013] In some of these embodiments, the multiple eccentric positioning blocks are arranged on the waste sand paper box assembly.

[0014] In some of these embodiments, the waste sand paper box assembly is provided with multiple mounting platforms, and each eccentric positioning block is mounted on a corresponding mounting platform.

[0015] In some of these embodiments, the eccentric positioning block is locked on the mounting platform by multiple fasteners, and the eccentric positioning block is provided with multiple waist-shaped holes matching the multiple fasteners.

[0016] In some of these embodiments, the fastener is a bolt.

[0017] Compared with the prior art, the advantages of the present utility model are:

[0018] Multiple eccentric positioning blocks corresponding to multiple grinding assemblies are provided. The grinding heads of the grinding assemblies are positioned by the eccentric positioning grooves on the eccentric positioning blocks, so that the grinding heads of the multiple grinding assemblies are in the same position, which is convenient for replacing sandpaper and improves production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. The drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic structural diagram of an embodiment of an eccentric positioning mechanism of the present utility model;

[0021] Figure 2 It is a schematic structural diagram of a grinding mechanism in an embodiment of the present utility model;

[0022] Figure 3 It is a schematic diagram of the use state of an embodiment of the present utility model;

[0023] Figure 4 It is a schematic structural diagram of an eccentric positioning block in an embodiment of the present utility model;

[0024] Wherein:

[0025] 100, mounting seat; 200, eccentric motor; 300, grinding head; 301, connecting rod part; 302, grinding part;

[0026] 1. Eccentric positioning block; 1-1. Eccentric positioning groove; 1-1a. Guide section; 1-1b. Positioning section; 1-2. Waist-shaped hole;

[0027] 2. Waste sandpaper box assembly; 2-1. Mounting table;

[0028] 3. Buffer layer. DETAILED DESCRIPTION

[0029] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the utility model and are not limited to the scope of the utility model. The implementation conditions used in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0030] See also Figure 1 , is a schematic diagram of the structure of an embodiment of the utility model, which provides an eccentric positioning mechanism that cooperates with a grinding mechanism.

[0031] like Figure 2 As shown, the grinding mechanism includes a mounting seat 100 and a plurality of grinding components arranged at intervals along the length direction of the mounting seat 100, each grinding component includes an eccentric motor 200 and a grinding head 300 transmission-connected to the eccentric motor 200. When the grinding component stops grinding, the positions of the plurality of grinding heads 300 are deviated due to the eccentric motor 200, making it inconvenient to stick sandpaper on the plurality of grinding heads 300.

[0032] In order to locate the positions of multiple grinding heads 300 and facilitate the pasting of sandpaper, an eccentric positioning mechanism is set on the waste sandpaper box assembly 2, and the eccentric positioning mechanism includes multiple eccentric positioning blocks 1 arranged at intervals. The multiple eccentric positioning blocks 1 correspond to the multiple grinding assemblies. The eccentric positioning block 1 is provided with an eccentric positioning groove 1-1 for the grinding head 300 to be placed, and the grinding head 300 is positioned through the eccentric positioning groove 1-1.

[0033] A plurality of mounting platforms 2-1 are provided on the waste sandpaper box assembly 2, and each eccentric positioning block 1 is installed on the corresponding mounting platform 2-1. Specifically, the eccentric positioning block 1 is locked on the mounting platform 2-1 via a plurality of fasteners, and the locking members may be bolts. In order to facilitate the adjustment of the position of the eccentric positioning block 1, a plurality of waist-shaped holes 1-2 matching with the plurality of locking members are provided on the eccentric positioning block 1. By adjusting the position of the locking members in the waist-shaped holes 1-2, the position of the eccentric positioning block 1 can be adjusted to position the plurality of grinding heads at a uniform position.

[0034] The grinding head 300 includes a connecting rod portion 301 connected to the eccentric motor 200 at one end and a grinding portion 302 connected to the other end of the connecting rod portion 301 , and sandpaper is attached to the grinding portion 302 .

[0035] One end of the eccentric positioning groove 1-1 is provided with an opening and is adapted to the connecting rod portion 301, so that the connecting rod portion 301 can enter the eccentric positioning groove 1-1 for positioning.

[0036] As Figure 4 shown, the eccentric positioning groove 1-1 includes a guiding section 1-1a and a positioning section 1-1b. The guiding section 1-1a extends from one end of the positioning section 1-1b to the outside of the positioning section 1-1b. After being guided by the guiding section 1-1a, the connecting rod portion 301 is positioned in the positioning section 1-1b. Preferably, the positioning section 1-1b is an arc-shaped groove, and the guiding section 1-1a is a convex arc-shaped structure protruding towards the positioning section 1-1b.

[0037] To further optimize the implementation effect of the present invention, a buffer layer 3 is attached to the inner wall of the eccentric positioning groove 1-1, which can play a buffering role and avoid abrasion of the connecting rod portion 301. Preferably, the buffer layer 3 can be made of elastic materials such as urethane rubber or rubber.

[0038] The working principle of the present invention is as follows:

[0039] When the sandpaper needs to be replaced for the grinding mechanism to complete the product grinding, the connecting rod portion 301 of the grinding head 300 is guided by the guiding section 1-1a and then enters the positioning section 1-1b to complete the positioning, so that the multiple grinding heads 302 are in the same position, facilitating the subsequent operation of pasting the sandpaper.

[0040] In summary, the eccentric positioning mechanism can position multiple grinding heads of the grinding mechanism, facilitating the subsequent pasting of sandpaper and improving production efficiency.

[0041] The above examples are only to illustrate the technical concept and characteristics of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent transformation or modification made according to the spirit of the present invention should be covered within the protection scope of the present invention.

Claims

1. An eccentric positioning mechanism, which cooperates with a grinding mechanism, wherein the grinding mechanism comprises a mounting seat and a plurality of grinding assemblies arranged at intervals along the length direction of the mounting seat, wherein the grinding assembly comprises an eccentric motor and a grinding head connected to the eccentric motor in a transmission manner, characterized in that: The eccentric positioning mechanism includes: A plurality of eccentric positioning blocks, which correspond to the plurality of grinding components. An eccentric positioning groove for placing the grinding head is provided on the eccentric positioning block.

2. The eccentric positioning mechanism according to claim 1, wherein: The grinding head includes a connecting rod portion connected to the eccentric motor at one end and a grinding portion connected to the other end of the connecting rod portion.

3. The eccentric positioning mechanism according to claim 2, wherein: One end of the eccentric positioning groove is provided with an opening and is adapted to the connecting rod portion.

4. The eccentric positioning mechanism according to claim 3, wherein: The eccentric positioning groove includes a guiding section and a positioning section arranged in sequence. The guiding section extends from one end of the positioning section to the outside of the positioning section.

5. The eccentric positioning mechanism according to claim 4, wherein: The positioning section is an arc-shaped groove, and the guiding section is a convex arc-shaped structure protruding towards the positioning section.

6. The eccentric positioning mechanism according to claim 1, wherein: A buffer layer is attached to the inner wall of the eccentric positioning groove.

7. The eccentric positioning mechanism according to claim 1, wherein: The plurality of eccentric positioning blocks are arranged on the waste sand paper box assembly.

8. The eccentric positioning mechanism according to claim 7, wherein: A plurality of mounting platforms are provided on the waste sand paper box assembly, and each eccentric positioning block is mounted on the corresponding mounting platform.

9. The eccentric positioning mechanism according to claim 8, wherein: The eccentric positioning block is locked on the mounting platform by a plurality of fasteners, and a plurality of waist-shaped holes matching the plurality of fasteners are provided on the eccentric positioning block.

10. The eccentric positioning mechanism according to claim 9, wherein: The fastener is a bolt.

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