阅读说明：本技术 一种修磨治具、含修磨治具的修磨装置及修磨方法 (Grinding jig, grinding device containing grinding jig and grinding method ) 是由 李二虎 于 2019-10-11 设计创作，主要内容包括：本发明提供一种修磨装置,包括修磨治具、用于设置抛光磨具的旋转底座、用于实现修磨治具与抛光磨具紧贴的定位治具以及用于带动修磨治具在抛光磨具上做周期性圆周运动的摆动机构,所述修磨治具包括修磨面,在修磨面上设有金刚砂层、螺旋槽和避空槽,在修磨治具上设有多个连通螺旋槽的排液孔。本发明还提供一种修磨方法,通过定位治具将修磨治具紧压在待修的抛光磨具上,抛光磨具自旋,同时通过摆动机构带动修磨治具在抛光磨具上做周期性圆周运动；当产品的抛光装置与本发明中的修磨装置结构相同时,可将修磨治具设置在抛光装置的产品抛光位上,并仿照产品抛光过程对抛光磨具进行修磨作业。本发明操作方便、省时省力,有利于磨头修复均匀。(The invention provides a grinding device which comprises a grinding jig, a rotating base used for arranging a polishing grinding tool, a positioning jig used for enabling the grinding jig and the polishing grinding tool to be attached tightly, and a swinging mechanism used for driving the grinding jig to do periodic circular motion on the polishing grinding tool. The invention also provides a coping method, the coping jig is tightly pressed on a polishing grinding tool to be repaired through a positioning jig, the polishing grinding tool is self-rotated, and meanwhile, the coping jig is driven to do periodic circular motion on the polishing grinding tool through a swing mechanism; when the structure of the polishing device of the product is the same as that of the grinding device in the invention, the grinding jig can be arranged on the product polishing position of the polishing device, and the grinding operation of the polishing grinding tool is carried out according to the product polishing process. The invention has convenient operation, time and labor saving and is beneficial to the uniform repair of the grinding head.)

1. The grinding jig is characterized by comprising a grinding surface (61), wherein a carborundum layer is arranged on the grinding surface (61), a spiral groove (62) and an empty avoiding groove (63) are further formed in the grinding surface (61), and the empty avoiding groove (63) is located in the center of the spiral groove (62).

2. The grinding jig according to claim 1, wherein a plurality of drain holes (64) are formed in the grinding jig (6), and the drain holes (64) penetrate through the entire grinding jig and are connected to the grinding surface (61) and the opposite surface of the grinding surface.

3. The sharpening fixture according to claim 2, wherein the drain hole (64) communicates with the spiral groove (62).

4. The grinding jig according to any one of claims 1 to 3, wherein the spiral groove (62) has a groove width of 0.2 to 3mm, a groove depth of 0.2 to 5mm, and a groove pitch of 0.2 to 5 mm; the clearance groove (63) is a circular groove, the diameter of the circular groove is 3-25 mm, and the depth of the circular groove is 0.2-5 mm.

5. The grinding jig according to claim 4, wherein the grinding jig (6) is made of a metal material and is prepared by CNC machining and embedding a dense diamond sand layer on a working surface, and the grain size of the used diamond sand is 0.01-0.5 mm.

6. A grinding device is characterized by comprising the grinding jig (6) as claimed in any one of claims 1 to 5, a rotating base (2) for arranging a polishing grinding tool (1), a positioning jig (3) for enabling the grinding jig (6) and the polishing grinding tool to be attached to (1) closely and a swinging mechanism (4) for driving the grinding jig (6) to do periodic circular motion on the polishing grinding tool (1), wherein the swinging mechanism (4) is in linkage arrangement with the positioning jig (3).

7. The grinding device according to claim 6, characterized in that the swing mechanism (4) comprises a power source and a double-crank mechanism, one end of the double-crank mechanism is connected with the power source, the other end of the double-crank mechanism is connected with the positioning jig (3), and the grinding jig (6) is driven by the double-crank mechanism to do periodic circular motion on the polishing surface (11) of the polishing grinding tool, so that the grinding operation of 360 degrees on the polishing surface is realized, and the grinding surface is uniformly worn.

8. The grinding device according to claim 7, wherein the positioning jig (3) comprises a vertically arranged ejector rod (31) and a rolling bearing (32) arranged at the lower end of the ejector rod (31), a circular countersunk hole matched with the rolling bearing (32) is formed in the grinding jig (6), and the grinding jig is rotatably connected with the ejector rod (31) through the matching between the countersunk hole and the rolling bearing (32);

the double-crank mechanism is horizontally arranged and comprises a connecting rod (41), a transmission piece and a guide piece, the transmission piece is driven by a power source to rotate periodically, one end of the connecting rod (41) is movably connected with the transmission piece, the other end of the connecting rod is fixedly connected with the ejector rod (31), and the guide piece is located between the transmission piece and the ejector rod (31) and is movably connected with the connecting rod (41).

9. A grinding method matched with the grinding device according to any one of claims 6 to 8 for use, characterized by comprising the following steps:

1) preparing a coping jig (6), and arranging a carborundum layer on a coping surface (61) of the coping jig (6);

2) the grinding jig (6) is tightly pressed on the polishing grinding tool (1) to be repaired through the positioning jig (3), so that the grinding surface (61) of the grinding jig is tightly attached to the polishing surface (11) of the polishing grinding tool;

3) the polishing and grinding tool (1) is driven by the rotary base (2) to do self-rotating motion relative to the polishing tool (6) so that the polishing surface (11) is rotationally polished by the polishing surface (61), meanwhile, the positioning tool (3) is driven by the swing mechanism (4) to do periodic circular motion, the polishing tool (6) is driven to do periodic circular motion on the polishing and grinding tool (1), and the polishing surface (11) is uniformly polished by the polishing surface (61).

10. The method according to claim 9, wherein the grinding method grinds the grinding tool (1) following the product polishing process when the product polishing device is the same as the grinding device of the present invention.

Technical Field

The invention relates to the technical field of polishing of ceramic, gem and glass materials, in particular to a coping jig and a method for coping a polishing grinding tool by matching the coping jig with an original polishing device.

Background of the invention is described.

With the development of science and technology, materials such as ceramics, gems, glass and the like are widely applied, and corresponding processing technologies are continuously innovated in order to meet the requirements of different industries on the materials. Currently, copper grinding heads (including but not limited to ordinary copper grinding heads, resin copper grinding heads, and synthetic copper grinding heads) are often used as the preferred polishing medium because of their superior surface polishing effect.

After a long time of polishing operation, the flatness of the working surface of the copper grinding head becomes poor or the working surface is severely worn, so that the surface of a processed product is scratched, is not penetrated and the like. Generally speaking, a great deal of cost can be saved and the processing efficiency can be improved by a grinding head repairing process with high efficiency and high quality.

The traditional grinding head repairing process is to mill the flaw of the grinding head by utilizing CNC, the process is complex in operation, high in repairing cost and low in efficiency, and the repairing quality of the copper grinding head is very common. The improved grinding head repairing process is used for repairing the working surface of the copper grinding head by utilizing the sintered grinding wheel of the grinding machine, the repairing quality is improved, and the defect of complex operation cannot be avoided. Furthermore, for the two repair processes described above: 1) the copper grinding head is disassembled and assembled by means of special equipment tools, and the disassembled copper grinding head is sent to a machine tool for processing and repairing, so that the time consumption is long, other equipment is introduced, and the improvement of the production efficiency is seriously restricted; 2) the copper grinding head and the grinding jig can rotate relatively when being repaired, the problem that the grinding speed of the edge area and the grinding speed of the middle area are not uniform can be caused due to the fact that the edge linear speed is high and the middle linear speed is low in the rotating process, the repairing degree of each part on the operation surface of the copper grinding head is not uniform, and therefore the difference of products obtained by machining with the polishing grinding tool is large, and the product quality cannot be guaranteed.

Therefore, the industry needs a coping jig and a coping method which are simple and convenient to operate and can effectively improve the repairing quality and the repairing efficiency of the copper grinding head, and meanwhile, in order to achieve the technical purpose, the polishing device needs to be correspondingly improved in structure in a matching mode.

Disclosure of Invention

The invention aims to provide a grinding jig and a grinding method which can repair a copper grinding head on line and can grind the copper grinding head uniformly at all positions so as to solve the problems in the background technology.

In order to achieve the purpose, the grinding jig comprises a grinding surface, wherein a carborundum layer is arranged on the grinding surface, a spiral groove and an empty avoiding groove are further formed in the grinding surface, and the empty avoiding groove is located in the center of the spiral groove.

Preferably, a plurality of liquid discharge holes are formed in the grinding jig, and the liquid discharge holes penetrate through the whole grinding jig and are connected with the grinding surface and the opposite surface of the grinding surface.

Preferably, the liquid discharge hole is communicated with the spiral groove.

Preferably, the width of the spiral groove is 0.2-3 mm, the depth of the spiral groove is 0.2-5 mm, and the distance between adjacent grooves is 0.2-5 mm; the clearance groove is a circular groove, the diameter of the circular groove is 3-25 mm, and the depth of the circular groove is 0.2-5 mm.

Preferably, the main body of the coping jig is made of metal and is prepared by CNC (computerized numerical control) machining and embedding a compact diamond sand layer on a working surface, and the grain size of used diamond sand is 0.01-0.5 mm.

The invention also provides a grinding device, which comprises any one grinding jig, a rotating base for arranging the polishing grinding tool, a positioning jig for realizing the close attachment of the grinding jig and the polishing grinding tool, and a swinging mechanism for driving the grinding jig to do periodic circular motion on the polishing grinding tool, wherein the swinging mechanism is in linkage with the positioning jig.

Preferably, the swing mechanism comprises a power source and a double-crank mechanism, one end of the double-crank mechanism is connected with the power source, the other end of the double-crank mechanism is connected with the positioning jig, the double-crank mechanism drives the grinding jig to do periodic circular motion on the polishing surface of the polishing grinding tool, 360-degree grinding operation on the polishing surface is achieved, and the grinding surface is abraded uniformly.

Preferably, the positioning jig comprises a vertically arranged ejector rod and a rolling bearing arranged at the lower end of the ejector rod, a circular countersunk hole matched with the rolling bearing is formed in the grinding jig, and the grinding jig and the ejector rod are rotatably connected through the matching between the countersunk hole and the rolling bearing.

Preferably, the double-crank mechanism is horizontally arranged and comprises a connecting rod, a transmission part and a guide part, the transmission part is driven by a power source to periodically rotate, one end of the connecting rod is movably connected with the transmission part, the other end of the connecting rod is fixedly connected with the ejector rod, and the guide part is located between the transmission part and the ejector rod and movably connected with the connecting rod.

Further preferably, the transmission part is a transmission rod or a transmission wheel; the guide part is a guide rod or a guide wheel or a guide groove.

Preferably, the grinding device further comprises a pressure load mechanism, and the pressure load mechanism directly or indirectly applies a vertical downward acting force to the product through the positioning jig, so that the product is ensured to be pressed on the polishing grinding tool all the time in the polishing process.

The invention also provides a grinding method matched with the grinding device, which comprises the following steps:

1) preparing a coping jig, and arranging a carborundum layer on a coping surface of the coping jig;

2) pressing the coping jig on the polishing grinding tool to be repaired through the positioning jig so that the coping surface of the coping jig is tightly attached to the polishing surface of the polishing grinding tool;

3) the polishing grinding tool is driven by the rotary base to do self-rotating motion relative to the polishing jig, so that the polishing surface is subjected to rotary polishing, meanwhile, the positioning jig is driven by the swing mechanism to do periodic circular motion, the polishing jig is driven to do periodic circular motion on the polishing grinding tool, and the polishing surface is uniformly polished at all positions.

Preferably, when the polishing device of the product has the same structure as the coping device in the invention, the coping method carries out coping operation on the polishing grinding tool according to the product polishing process.

Specifically, the polishing device and the grinding device have the same structure, which means that the polishing device comprises a polishing grinding tool arranged on a rotating base, a positioning jig for realizing the close contact between a product and the polishing grinding tool, and a swinging mechanism for driving the product to do periodic circular motion on the polishing grinding tool, and the positioning jig and the swinging mechanism are the same as the grinding device in the invention in internal structure and connection relation, and the difference is that the positioning jig is connected with a product placing table instead of the grinding jig. During polishing operation, the polishing device drives the product to do periodic circular motion on the polishing grinding tool through the swing mechanism and the positioning jig.

During the coping operation, firstly the product placing table is taken down and replaced by the coping jig on the basis of the polishing device, then the product polishing process is imitated, the coping jig is driven by the swing mechanism and the positioning jig to do periodic circular motion on the polishing grinding tool, finally the coping work is completed, and the coping jig is taken down and replaced by the product placing table.

Preferably, in the step 1), the process of preparing the coping jig is as follows: the carborundum with the grain diameter of 0.01-0.5 mm is densely embedded on the working surface of the die repairing jig by electroplating and sintering or adding a binder.

Specifically, the polishing grinding tool is a resin copper grinding head, and is prepared by uniformly mixing diamond powder with the particle size of 0.001-0.02 mm, copper powder and a resin binder, and then performing high-temperature high-pressure treatment, CNC (computer numerical control) processing and other steps, wherein the mass fraction of the diamond powder in the resin copper grinding head is 1-5%, and the diamond powder is uniformly distributed at each part of the grinding head; in contrast, the main body of the polishing jig is made of metal, a layer of compact large-particle-size diamond grains is electroplated and sintered on the surface of the metal to form a polishing surface, and the polishing jig prepared by the method can realize polishing operation on a polishing grinding tool.

The technical scheme provided by the invention at least has the following beneficial effects:

1. the grinding jig provided by the invention has a simple structure and good practicability, and can play the roles of chip removal and auxiliary polishing in the grinding process by arranging the spiral groove and the clearance groove on the grinding surface, and reduce the linear velocity difference of an inner area and an outer area to a certain extent, so that the copper grinding head can be uniformly ground at all positions.

2. The grinding jig provided by the invention is provided with the plurality of liquid discharging holes, so that the cooling liquid can be directly guided to the grinding position, the utilization maximization of the cooling liquid is further realized, and the cooling liquid can be ensured to fully exert the lubricating and cooling effects; because the drain hole directly communicates the spiral groove, so the coolant liquid is stored in the space formed by spiral groove and polishing surface and slowly oozes out along with the polishing action, also is favorable to reducing the waste, effectively reduces the volume of spraying of polishing solution, greatly reduced manufacturing cost.

3. The invention also provides a grinding device comprising the grinding jig, the grinding jig is ensured to be always attached to a polishing grinding tool by utilizing the positioning jig and the pressure loading mechanism, the grinding jig is driven to do periodic circular motion on the to-be-polished grinding tool by the swinging mechanism with the double-crank mechanism, and meanwhile, the to-be-polished grinding tool is rotated and polished relative to the grinding jig, so that the uniform repair of all positions of the working surface of the grinding tool can be realized, the repair quality of the polishing grinding tool is improved, and the quality control of subsequent polishing operation is favorably improved.

4. The grinding method provided by the invention has the advantages of simple process and easiness in operation, can realize uniform repair of all positions on the polishing grinding tool by matching with the grinding device, has good grinding effect, and prolongs the service life of the polishing grinding tool; in addition, when the structure of the polishing device of the product is the same as that of the grinding device in the invention, the grinding method can be combined with the original polishing device, the effect that the same set of equipment is adopted for the polishing operation and the grinding operation is realized, the grinding tool to be ground is not required to be disassembled or assembled, other processing equipment is not required to be introduced, the grinding tool is only required to replace the product placing table and be matched with the structure of the polishing device, the polishing tool can be ground on line, the whole grinding process completely imitates the polishing process of the product, the cost is greatly saved, the repairing efficiency is obviously improved due to the reduction of a large number of assembling and disassembling and moving operations, and the invention has great popularization and application values.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, it is obvious that the drawings described below are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:

FIG. 1 is a schematic diagram of the construction of a product polishing apparatus used in conjunction with the teachings of the present invention;

fig. 2 is a schematic structural view of a polishing device in embodiment 1 of the present invention (i.e., a polishing jig of the present invention is used in conjunction with the polishing device in fig. 1 to perform polishing operation);

FIG. 3 is an exploded view of the positioning jig, the coping jig, and the polishing tool of FIG. 2;

FIG. 4 is a block diagram of the grinding jig of FIG. 2 (grinding side up);

in the figure: 01 product, 02 product placing table, 1 polishing grinding tool, 11 polishing surface, 2 rotating base, 21 base motor, 22 first transmission belt, 3 positioning jig, 31 ejector rod, 32 rolling bearing, 33 shaft sleeve, 4 swing mechanism, 41 connecting rod, 42 transmission wheel, 43 upright rod, 44 swing motor, 45 second transmission belt, 46 guide groove, 5 pressure loading mechanism, 6 coping jig, 61 coping surface, 62 spiral groove, 63 clearance groove and 64 liquid discharge hole.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.