Polishing wheel base body of folding steel structure

Abstract

The utility model discloses a polishing wheel base body of a folding steel structure, which comprises a mounting seat, a rubber base body and a grinding material belt base body, the middle part of the mounting seat is mounted on a grinding wheel rod, the rubber base body is positioned on the peripheral wall surface of the mounting seat, the grinding material belt base body is folded and pleated to form a belt-shaped structure with wrinkles, and the rubber base body is positioned on the outer wall surface of the mounting seat. Rubber reinforced isolation blocks are arranged between the corrugation structures on the upper face and the lower face of the abrasive belt base body respectively, the abrasive belt base body of a belt-shaped structure is wound around the outer side wall face of the rubber base body, and then a complete polishing wheel base body is formed for polishing machining. The polishing wheel base body does not contain seams in the circumferential direction, the bonding strength is higher, the polishing wheel base body is not prone to falling off due to scratching, meanwhile, automation is easy to achieve in the process, mass production can be achieved, the manufacturing cost can be remarkably reduced, the polishing wheel base body can be popularized and applied to the civil industry grinding and polishing process, comprehensive automation of the process is achieved, and manual grinding is thoroughly eliminated.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding and polishing, and relates to a tool for grinding and polishing the surface of parts to be processed, in particular to a flexible grinding tool with metal as a binder for fixing abrasives, specifically a polishing wheel base body with a folding steel structure. Background Technique

[0002] Polishing is a common process in the processing of metal parts such as blades, molds, and structural parts, and it has a wide range of applications in important fields such as automobiles, ships, and aerospace. Due to the sufficient labor resources in our country, the early grinding and polishing (hereinafter referred to as polishing) work was mainly completed by manual operation. However, the accuracy of manual polishing is low, the polishing quality is unstable, and it belongs to a harmful type of work with a harsh operating environment, which endangers the physical health of workers. With the continuous improvement of the national economic level and part requirements in our country, on the one hand, the number of people engaged in the polishing industry has been decreasing year by year, and on the other hand, it is increasingly difficult for manual polishing to meet the development needs of high-precision and high-tech fields. For example, China National Aero-Engine Corporation has clearly required that all key components are not allowed to use manual polishing. Therefore, promoting the development of automated polishing technology to replace manual polishing has been an important trend in the polishing industry in recent years.

[0003] In order to achieve the automation of the polishing process, the polishing wheel must have a sufficiently long service life to avoid frequent tool replacement and maintain a stable geometric shape. However, the polishing wheels used in manual polishing often have a short service life, such as scouring pad wheels and flap wheels. This is because these polishing wheels mainly use ordinary abrasives and are mostly fixed with resin binders, and the wear resistance and bonding strength of the abrasives are relatively low, and the loss rate is fast during polishing. In recent years, there has emerged a superhard abrasive-coated abrasive belt or abrasive cloth made by electroplating method. It improves the wear resistance of the abrasives and extends the service life of the polishing tool by using superhard abrasives, and at the same time uses the electroplating process to fix the superhard abrasives on a flexible steel wire cloth base body or a locally metallized base body of a non-metallic material to enhance the bonding strength between the abrasives and the abrasive cloth base body.

[0004] At present, the base material of this coated abrasive mainly uses chemical fiber fabric with a woven structure. At the same time, a conductive thin film is attached to the surface of the fabric by means of electroless plating, etc. This enables the base material to not only have conductivity similar to that of metal, but also have good tensile properties and flexibility, avoiding the deficiency of excessive rigidity of the metal base material. The applicant once proposed a method of using a molding method to press the flat-structured abrasive cloth into a semi-cylindrical or hemispherical structure and fixing them on a rubber matrix by means of cementing to form a complete polishing wheel. However, due to the poor plastic deformation ability of the abrasive cloth, currently, only the polished surface of the required polishing wheel can be formed by splicing the two halves of the polished surface cut from the axial direction of the axis. There are two obvious seams on the polished surface of the polishing wheel made in this way, which are easily scratched and fallen off by the sharp structure on the workpiece when used for polishing microstructures. Moreover, the manufacturing process of this kind of polishing wheel requires a large amount of manual operation, is difficult to achieve mass production, has difficulty in cost control, and cannot meet the demand of the civilian industrial department for low-cost polishing wheels. Summary of the Utility Model

[0005] In view of the deficiencies of the prior art, the present utility model discloses a polishing wheel base body with a folded steel structure to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present utility model provides the following technical solution: A polishing wheel base body with a folded steel structure, including a mounting seat, a rubber matrix, and an abrasive belt base body. The middle part of the mounting seat is installed on a grinding wheel rod. The rubber matrix is located on the outer wall surface of the mounting seat. The abrasive belt base body is folded and pleated to form a belt-like structure with wrinkles. Rubber reinforced isolation blocks are respectively arranged between the wrinkle structures on the upper and lower surfaces of the abrasive belt base body. The belt-like abrasive belt base body is wound around the outer wall surface of the rubber matrix, and then a complete polishing wheel base body is formed for polishing processing.

[0007] Preferably, the internal structure of the mounting seat is correspondingly provided with threaded holes, tapered holes, stepped holes, or cylindrical holes according to actual installation requirements.

[0008] Preferably, the rubber matrix and the abrasive belt base body are adhesively connected to each other through a provided cementing material.

[0009] Preferably, the abrasive belt base body located on the surface of the rubber matrix is provided with a plurality of gaps for chip removal and providing a grinding fluid channel.

[0010] Preferably, CBN or artificial diamond abrasive grains are adhered to the exposed metal area of the steel belt on the outer side of the abrasive belt base body by electroplating.

[0011] Preferably, the wrinkle structure of the abrasive belt base body is formed by rolling.

[0012] Preferably, the rubber-reinforced isolation block is formed by coating rubber or other elastic materials and heating and vulcanizing through a vulcanizer.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The polishing wheel in the present utility model does not contain seams in the circumferential direction, has higher bonding strength, is not easily detached due to rubbing, and can obtain high profile accuracy through subsequent processing, further improving the accuracy of the polishing wheel. At the same time, this process is easy to automate, can be mass-produced, and the manufacturing cost can be significantly reduced. It can be popularized for the grinding and polishing process in the civilian industry to achieve full automation of this process and completely eliminate manual grinding.

[0015] 2. In the present utility model, the abrasive belt substrate of the polishing wheel can be automatically made into a strip shape, and the strip structure is easy to be wound around any complex non-developable surface with high efficiency by an automatic winding device to form various polishing wheels with complex generatrices, and this process method has universality.

[0016] 3. In the present utility model, the spiral winding of the abrasive belt substrate can avoid generating gaps on the surface of the polishing wheel and can meet the polishing requirements of sharp structures.

[0017] 4. The polishing wheel in the present utility model can be electroplated by the same process as the electroplated grinding wheel, eliminating the special equipment required for the production of traditional electroplated abrasive belts. Description of the Drawings

[0018] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0019] In the drawings:

[0020] Figure 1 is a schematic structural diagram of the polishing wheel substrate of the present utility model;

[0021] Figure 2 is a spiral sectional view of the A-A section of the polishing wheel substrate of the present utility model;

[0022] Figure 3 is a spiral sectional view of the B-B section of the polishing wheel substrate of the present utility model;

[0023] Figure 4 is a state diagram of the forming process of the abrasive belt substrate of the present utility model;

[0024] Figure 5 is a schematic diagram of the steel belt folding and first vulcanization system of the present utility model;

[0025] Figure 6It is a schematic diagram of the second vulcanization system of the abrasive belt substrate of the present utility model;

[0026] Reference numerals in the figure: 1. Abrasive belt substrate; 101. Gap; 102. Exposed metal area of the steel belt; 103. Rubber-reinforced isolation block; 2. Cementing material; 3. Rubber matrix; 4. Mounting seat; 5. First vulcanization system; 501. First rolling die; 502. First workbench; 503. First feeding system; 504. First rubber or other elastic material; 505. First vulcanizer; 507. Second rolling die; 6. Second vulcanization system; 601. Driving gear; 602. Second workbench; 603. Second feeding system; 604. Second rubber or other elastic material; 605. Second vulcanizer. Specific embodiments

[0027] The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are only for the purpose of illustration and explanation of the present utility model, and are not intended to limit the present utility model.

[0028] Example: As Figures 1-3 shown, a polishing wheel substrate of a folded steel structure includes a mounting seat 4, a rubber matrix 3, and an abrasive belt substrate 1. The middle part of the mounting seat 4 is mounted on a grinding wheel rod, and the internal structure of the mounting seat 4 is provided with threaded holes, tapered holes, stepped holes, and cylindrical holes according to actual installation requirements. The rubber matrix 3 is located on the outer wall surface of the mounting seat 4, and the rubber matrix 3 and the abrasive belt substrate 1 are adhesively connected to each other through a provided cementing material 2. The abrasive belt substrate 1 is folded and pleated to form a belt-like structure with wrinkles, and the wrinkled structure of the abrasive belt substrate 1 is formed by rolling. Rubber-reinforced isolation blocks 103 are respectively provided between the wrinkled structures on the upper and lower surfaces of the abrasive belt substrate 1. The rubber-reinforced isolation blocks 103 are formed by coating rubber or other elastic materials and heating and vulcanizing through a vulcanizer. The belt-like abrasive belt substrate 1 is wound around the outer wall surface of the rubber matrix 3, and then a complete polishing wheel substrate is formed for polishing processing. Among them, a plurality of gaps 101 are provided on the outer surface of the abrasive belt substrate 1 located on the surface of the rubber matrix 3, and chips are discharged and a grinding fluid channel is provided through the gaps 101. The exposed metal area 102 of the steel belt on the outer side surface of the abrasive belt substrate 1 is adhered with CBN or artificial diamond abrasive grains by electroplating.

[0029] As Figure 4 shown is a state diagram of the forming process of the abrasive belt substrate, Figure 4 (a) is state 1A formed by rolling a wide steel belt. The flat steel belt is rolled to form the metal structure abrasive belt substrate 1, Figure 4(b) State 1B after coating the upper surface of the folded steel strip with rubber or other elastic reinforcing materials. The coated rubber or other elastic materials form the structure of the rubber-reinforced isolation block 103 after vulcanization. Figure 4 (c) State 1C after coating the lower surface of the folded steel strip with rubber or other elastic reinforcing materials. The coated rubber or other elastic materials form the structure of the rubber-reinforced isolation block 103 after vulcanization.

[0030] As Figure 5 shown is the schematic diagram of the steel strip folding and first vulcanization system 5. In the figure, part 501 is the first rolling die, and part 507 is the second rolling die. After reasonable design of their tooth profiles, the required cross-section of the steel strip can be processed. Part 502 is the first workbench, part 503 is the first feeding system, part 504 is the first rubber or other elastic material used to fill the gaps of the steel strip, and part 505 is the first vulcanizer to vulcanize the rubber by heating.

[0031] As Figure 6 shown is the schematic diagram of the abrasive belt substrate second vulcanization system 6. In the figure, part 601 is the driving gear used to drive the feeding movement of the abrasive belt substrate 1B, part 602 is the second workbench, part 603 is the second feeding system, part 604 is the second rubber or other elastic material used to fill the gaps of the steel strip, and part 605 is the second vulcanizer to vulcanize the rubber by heating.

[0032] The specific preparation process includes:

[0033] The first step: The abrasive belt substrate 1 steel strip is pleated by the first rolling die 501 and the second rolling die 507, and at the same time, the upper surface of the steel strip 1A is vulcanized by the first vulcanization system 5.

[0034] The second step: Turn over the pleated abrasive belt substrate 1 steel strip 1B with the upper surface wrinkle filled and vulcanized, and use the abrasive belt substrate second vulcanization system 6 to fill and vulcanize the lower surface wrinkle area to form structure 1C.

[0035] The third step: Polish the upper surface of the abrasive belt substrate 1 steel strip 1C to expose the area for electroplating for electroplating.

[0036] The fourth step: Cut the abrasive belt substrate 1 into a strip structure with a certain width, and the width is 0.5 - 1 mm.

[0037] The fifth step: Wind the cut abrasive belt substrate 1 around the polishing wheel substrate coated with the cementing material. The polishing wheel substrate is made according to the Figure 2 structure and consists of the polishing wheel mounting seat 4 and the polishing wheel rubber substrate 3.

[0038] Step 6: Grind the polishing wheel base as required to ensure that the exposed metal area 102 of the steel strip is on a surface with certain geometric accuracy.

[0039] Finally, the abrasive can be attached to the exposed metal area 102 of the steel strip to be electroplated by electroplating to complete the production of the polishing wheel. When necessary, the floating sand on the surface of the electroplated polishing wheel also needs to be removed and subjected to initial aging treatment.

[0040] Finally, it should be noted that the above are only preferred examples of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A polishing wheel base with a folded steel structure, characterized in that: It includes a mounting seat, a rubber base and an abrasive belt base. The middle part of the mounting seat is installed on the grinding wheel rod, the rubber base is located on the outer wall of the mounting seat, the abrasive belt base is folded and pleated to form a wrinkled belt structure, and rubber reinforced isolation blocks are respectively provided between the wrinkled structures on the upper and lower sides of the abrasive belt base. The abrasive belt base with a belt structure is wound around the outer wall of the rubber base to form a complete polishing wheel base for polishing.

2. The folded steel polishing wheel substrate according to claim 1, characterized in that: The internal structure of the mounting seat is provided with threaded holes, tapered holes, stepped holes or cylindrical holes according to actual installation requirements.

3. The polishing wheel base of the folded steel structure according to claim 1, characterized in that: The rubber matrix and the abrasive belt matrix are bonded to each other via a bonding material.

4. The polishing wheel base of the folded steel structure according to claim 1, characterized in that: A plurality of gaps are arranged on the abrasive belt substrate located on the surface of the rubber substrate, and chips are removed through the gaps and grinding fluid channels are provided.

5. The polishing wheel base of the folded steel structure according to claim 1, characterized in that: The exposed metal area of ​​the steel belt on the outer side of the abrasive belt substrate is adhered with CBN or artificial diamond abrasive particles by electroplating.

6. The folded steel structure polishing wheel base according to claim 1, characterized in that: The corrugated structure of the abrasive belt substrate is formed by rolling.

7. The polishing wheel base of the folded steel structure according to claim 1, characterized in that: The rubber reinforced isolation block is formed by coating rubber and heating and vulcanizing it in a vulcanizing machine.

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