阅读说明：本技术 一种异形表面光整加工工具 (Special-shaped surface finishing tool ) 是由 成建联 赵延捷 张志政 于 2019-11-20 设计创作，主要内容包括：本发明公开了一种异形表面光整加工工具,包括固定部分、外圈、内圈、弹簧、打磨块；所述的弹簧一端固定在外圈上,一端刚性连接着砂带固定块；砂带固定块另一面连接硫化橡胶；硫化橡胶三面附着砂带；外圈与内圈用保护板包住弹簧,内圈360°均匀分布孔,进行弹簧伸缩。弹簧要求刚度比较大,不易弯曲。硫化橡胶弹性大,具有较高的实用性。外圈可以固定在加工设备上,也可以安装把手进行人工光整加工操作。本发明结构简单,成本较低,可以一次性完成打磨、去毛刺等工作,效率较高。(The invention discloses a special-shaped surface finishing tool, which comprises a fixed part, an outer ring, an inner ring, a spring and a grinding block, wherein the fixed part is fixedly connected with the outer ring; one end of the spring is fixed on the outer ring, and the other end of the spring is rigidly connected with the abrasive belt fixing block; the other side of the abrasive belt fixing block is connected with vulcanized rubber; abrasive belts are attached to three sides of vulcanized rubber; the outer ring and the inner ring wrap the spring through the protection plate, and the inner ring is uniformly distributed with holes at 360 degrees for the spring to stretch. The spring is required to have higher rigidity and is not easy to bend. The vulcanized rubber has high elasticity and high practicability. The outer ring can be fixed on processing equipment, and a handle can also be arranged for manual finishing operation. The invention has simple structure and lower cost, can finish the work of polishing, deburring and the like at one time and has higher efficiency.)

1. A special-shaped surface finishing tool is characterized by comprising a fixed part and a grinding disc; the fixed part is connected with the polishing disc;

the polishing disc comprises an outer ring (2), an inner ring (3), an elastic component (4) and a polishing block (5); the outer ring (2) and the inner ring (3) are coaxially arranged, one end of each elastic component (4) is fixedly arranged on the inner side wall of the outer ring (2) along the circumferential direction, a plurality of holes matched with the elastic components are formed in the inner ring (3), and the other end of each elastic component (4) penetrates through the hole formed in the inner ring (3); the end parts of a plurality of elastic components (4) on the inner side of the inner ring (3) are connected with a grinding block (5).

2. A tool for profiting surface finish according to claim 1, characterized in that an annular connecting member (9) is provided between the outer ring (2) and the inner ring (3); the outer side of the annular connecting piece (9) is fixedly connected with the outer ring (2), and the inner side of the annular connecting piece (9) is fixedly connected with the inner ring (3).

3. A tool for profiting surface finishing according to claim 2, characterized in that the anchoring portion is connected to the ring-shaped connecting member (9) and is located at the side of the abrasive disc.

4. A shaped surface finishing tool as claimed in claim 1, wherein the fixed portion is a hand-held handle.

5. A tool for profiting surface finish according to claim 1, wherein the sanding block (5) comprises a belt block (6), a vulcanized rubber (7) and a belt (8); one surface of the abrasive belt fixing block (6) is fixedly connected with the elastic part, and the other surface of the abrasive belt fixing block is fixedly connected with vulcanized rubber (7); vulcanized rubber (7) is wrapped on three surfaces of the abrasive belt (8).

6. A tool for profilometry according to claim 1, wherein the resilient member (4) is a spring, the number of springs being 64.

Technical Field

The invention belongs to the technical field of machine tool machining, and particularly relates to a special-shaped surface finishing tool.

Background

In the field of machine tool machining, the surface roughness of parts produced in most machining processes can not meet the requirements, sharp burrs can be generated, and the assembly and the use of the parts are seriously influenced. The prior finishing process comprises super polishing and polishing, and has quite complex process and higher cost. The deburring method also utilizes traditional methods such as files, sandpaper and the like. Although the deburring method has various automatic and chemical methods, the deburring method is high in cost and easy to damage parts.

Disclosure of Invention

The present invention is directed to a tool for finishing a shaped surface to solve the above problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

a special-shaped surface finishing tool comprises a fixed part and a grinding disc; the fixed part is connected with the polishing disc;

the polishing disc comprises an outer ring, an inner ring, an elastic component and a polishing block; the outer ring and the inner ring are coaxially arranged, one end of each elastic component is fixedly arranged on the inner side wall of the outer ring along the circumferential direction, a plurality of holes matched with the elastic components are formed in the inner ring, and the other end of each elastic component penetrates through the hole formed in the inner ring; the end parts of a plurality of elastic components on the inner side of the inner ring are connected with the grinding blocks.

Furthermore, an annular connecting piece is arranged between the outer ring and the inner ring; the outer side of the annular connecting piece is fixedly connected with the outer ring, and the inner side of the annular connecting piece is fixedly connected with the inner ring.

Further, the fixed part is connected with the annular connecting piece and is positioned on the side surface of the polishing disc.

Further, the fixed part is a hand-held handle.

Further, the polishing block comprises a sand belt fixing block, vulcanized rubber and a sand belt; one surface of the abrasive belt fixing block is fixedly connected with the elastic part, and the other surface of the abrasive belt fixing block is fixedly connected with vulcanized rubber; vulcanized rubber is wrapped on three surfaces of the abrasive belt.

Furthermore, the elastic component is a spring, and the number of the springs is 64.

Compared with the prior art, the invention has the following technical effects:

according to the tool, 64 springs are connected with the outer ring and the grinding block and used for stretching and adjusting the height of the grinding block; 64 holes are uniformly distributed in the inner ring at 360 degrees, the spring penetrates through the holes and is connected with the grinding block, and the friction force of the grinding block is increased by the spring.

The polishing block of the invention consists of an abrasive belt fixing block, vulcanized rubber and an abrasive belt. One side of the abrasive belt fixing block is rigidly connected with the spring, and the other side of the abrasive belt fixing block is connected with vulcanized rubber; the abrasive belt is attached to three surfaces of vulcanized rubber and used for grinding. The vulcanized rubber is not easy to break, and has high elasticity and tensile strength.

The 64 blocks of the sanding block of the present invention form a 64 sided polygon that closely approximates a circle. The whole surface of the part is covered as much as possible while ensuring that any profiled surface is accepted.

The invention has simple structure and high grinding efficiency.

Drawings

FIG. 1 is a front view of the overall structure of the present invention

FIG. 2 is an enlarged schematic design view of the sanding block;

figure 3 is an exploded view of the sanding block.

Wherein: 1. a fixed portion; 2. an outer ring; 3. an inner ring; 4. an elastic member; 5. grinding blocks; 6. a fixing block of the abrasive belt; 7. vulcanized rubber; 8. an abrasive belt; 9. an annular connector.

Detailed Description

The invention is further described below with reference to the accompanying drawings:

referring to fig. 1 to 3, a special-shaped surface finishing tool includes a fixing portion and a polishing pad; the fixed part is connected with the polishing disc;

the polishing disc comprises an outer ring 2, an inner ring 3, an elastic component 4 and a polishing block 5; the outer ring 2 and the inner ring 3 are coaxially arranged, one end of each elastic component 4 is fixedly arranged on the inner side wall of the outer ring 2 along the circumferential direction, a plurality of holes matched with the elastic components are formed in the inner ring 3, and the other end of each elastic component 4 penetrates through the hole formed in the inner ring 3; the end parts of a plurality of elastic components 4 on the inner side of the inner ring 3 are all connected with a grinding block 5.

An annular connecting piece 9 is arranged between the outer ring 2 and the inner ring 3; the outer side of the annular connecting piece 9 is fixedly connected with the outer ring 2, and the inner side of the annular connecting piece 9 is fixedly connected with the inner ring 3.

The fixed part is connected with the annular connecting piece 9 and is positioned at the side surface of the polishing disc.

The fixed part is a hand-held handle.

The sanding block 5 comprises a sand belt fixing block 6, vulcanized rubber 7 and a sand belt 8; one surface of the abrasive belt fixing block 6 is fixedly connected with the elastic part, and the other surface of the abrasive belt fixing block is fixedly connected with vulcanized rubber 7; vulcanized rubber 7 is wrapped on three faces of abrasive belt 8.

The elastic component 4 is a spring, and the number of the springs is 64.

As shown in fig. 1 to 3, a simple tool for finishing a special-shaped surface comprises a fixed part 1, an outer ring 2, an inner ring 3, springs (64) 4, a polishing block (64 blocks) 5, a belt fixing block (64 blocks) 6, vulcanized rubber (64 blocks) 7 and belts (64 strips) 8.

The periphery of the outer ring 2 is provided with a fixing device 1 which can be fixed after the last process of the machine tool for finishing and polishing; the fixing device 1 can also be designed as a handle for manual working, for manual operation. The outer ring is connected with 64 springs 4 inwards, 64 holes are uniformly distributed in the inner ring at 360 degrees, and the springs 4 are perforated and connected with the grinding block 5. The outer ring 2 and the inner ring 3 are connected into a whole by an annular connecting piece to prevent the spring 4 from bending.

The sanding block 5 comprises a sand belt fixing block 6, vulcanized rubber 7 and a sand belt 8. A total of 64 blocks formed a 64 sided polygon. One side of the abrasive belt fixing block 6 is rigidly connected with the spring 4, and the other side is connected with vulcanized rubber 7; abrasive belts 8 are attached to three sides of the vulcanized rubber 7.

After the work is started, the part penetrates through the 64-edge shape, and the grinding block 5 forms an envelope curve which is approximately the same as the shape of the part according to the shape of the part; the part starts to move, and each grinding block 5 is contacted with the part to perform corresponding grinding.

The design concept of the present invention is described above with only one embodiment, and the present invention can be expanded to connect more function modules externally at the same time when conditions allow, thereby expanding the functions of the present invention to the maximum.

The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.