CN210360841U

CN210360841U - Grinding head for grinding and polishing device

Info

Publication number: CN210360841U
Application number: CN201921206571.5U
Authority: CN
Inventors: 刘高平
Original assignee: Suzhou Yuyao Die Technology Co ltd
Current assignee: Suzhou Yuyao Die Technology Co ltd
Priority date: 2019-07-29
Filing date: 2019-07-29
Publication date: 2020-04-21
Anticipated expiration: 2029-07-29

Abstract

A grinding head for a grinding and polishing device comprises a body and a cover plate, wherein the body comprises a sleeve and a handle rod, the sleeve is fixedly connected with the handle rod, and the cover plate penetrates through the handle rod and is fixedly arranged at the end part of one end of the sleeve; a plurality of through holes are formed in the sleeve, and grinding needles are accommodated in the through holes; the through hole is composed of a first section and a second section, the diameter of the second section is larger than that of the first section, and the first section is far away from the cover plate; the middle part of grinding needle is equipped with the arch, and this arch will the grinding needle divide into two parts, and the first part is the portion of polishing, and the second part is the installation department, the portion of polishing by outside the through-hole was stretched out to the first section of through-hole, the cover is equipped with the spring on the installation department, this spring one end with the protruding conflict setting of grinding needle, the other end with the apron is contradicted and is set up, the length sum of arch and installation department is less than the length of the second section of through-hole. The utility model discloses a flexible of spring can let the grinding needle paste all the time and carry out work on the surface of work piece among the regrinding process to be applicable to the abrasive polishing of dysmorphism face.

Description

Grinding head for grinding and polishing device

Technical Field

The utility model belongs to the technical field of the workpiece surface treatment equipment, concretely relates to grinding head for grinding and polishing device.

Background

The rapid development of modern industry puts higher demands on the surface quality of workpieces, the surface quality not only affects the appearance of the workpieces, but also directly affects the service performance and the service life of the workpieces, and the quality of the surface quality is particularly important for dies. In the modern manufacturing industry, the die manufacturing is of great importance and becomes an important mark of national industrial level. The mold is a tool for manufacturing parts by a replication method, and in recent years, the mold manufacturing industry has been rapidly developed and is widely used in the machine industry. With the development of science and technology, the market competition at home and abroad is intensified, and the requirements on the die are higher and higher. At present, the surface roughness becomes an important mark for measuring the quality of a mold product, and only if the roughness of the mold surface is low, the roughness of the product processed by the mold surface is also low. Therefore, surface polishing treatment has become an important means for surface processing of some key parts in the mold, engineering machinery, medical equipment and aerospace industries.

The shaping of the surfaces of the mould impressions is now substantially automated. In order to remove the tool mark or hardened layer left on the surface of the mold cavity by mechanical machining or electric discharge machining, the surface of the mold cavity must be subjected to grinding and polishing after the geometric shape machining in order to obtain the required size, shape, positional accuracy and surface roughness. Grinding and polishing are used as an important process for processing the die cavity, the processing time of the grinding and polishing process accounts for 30-50% of the manufacturing time of the whole die, and the cost of the grinding and polishing process accounts for 5-30% of the whole manufacturing cost. Lapping and polishing have become a bottleneck in the mold manufacturing process.

The working principle of grinding and polishing is as follows: the grinding head is driven to rotate by a rotating tool (a driving part), and the grinding head is used as a carrier to drive grinding paste or grinding fluid to carry out cutting work on the surface of a workpiece. When the special-shaped surface workpiece is ground, the downward pressure of the grinding head is properly adjusted according to the valley peak value of the workpiece, or the grinding head with proper diameter is selected for working. The roughness of the processing depends on the hardness of the material of the grinding head and the thickness of the grinding fluid, and the surface roughness of the processed workpiece can reach more than 3000 meshes. An important component of the grinding and polishing device is a grinding head, and the conventional grinding head for processing a special-shaped surface is as follows: copper brush, iron brush, brush all can only be because brush hair, copper wire, iron wire are thin too soft, and its effect is to improve surface brightness and slight finish. The existing grinding head also comprises a polishing copper ring and a plastic ring for grinding. Because the connecting structure of the handle rod, the polishing copper ring and the plastic ring is a universal joint structure, the rotating speed cannot be higher than 2000 revolutions, otherwise, the jumping is unstable due to the relationship of the universal joint; the polishing copper ring and the polishing plastic ring can only be used for grinding pure plane workpieces and cannot be used for grinding and polishing special-shaped surfaces.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a grinding head for a grinding and polishing device.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: a grinding head for a grinding and polishing device comprises a body and a cover plate, wherein the body comprises a sleeve and a handle rod, the sleeve is fixedly connected with the handle rod, and the cover plate penetrates through the handle rod and is fixedly arranged at the end part of one end of the sleeve; a plurality of through holes are formed in the sleeve, and grinding needles are accommodated in the through holes; the through hole is composed of a first section and a second section, the diameter of the second section is larger than that of the first section, and the first section is far away from the cover plate; the middle part of grinding needle is equipped with the arch, and this arch will the grinding needle divide into two parts, and the first part is the portion of polishing, and the second part is the installation department, the portion of polishing by outside the through-hole was stretched out to the first section of through-hole, the cover is equipped with the spring on the installation department, this spring one end with the protruding conflict setting of grinding needle, the other end with the apron is contradicted and is set up, the length sum of arch and installation department is less than the length of the second section of through-hole.

The preferable technical scheme is as follows: the sleeve and the handle rod are of an integrally formed structure.

The preferable technical scheme is as follows: the grinding needle is made of copper, iron, aluminum, resin copper, resin aluminum, plastic steel, wood, bamboo, oilstone, fiber oilstone or artificial diamond.

The preferable technical scheme is as follows: the cross-sectional shape of the end part of the grinding needle used for grinding and polishing is circular, triangular or elliptical.

The preferable technical scheme is as follows: the end face of the end part, used for grinding and polishing, of the grinding needle is an arc-shaped face, an inclined face or a spherical face.

The preferable technical scheme is as follows: the grinding part of the grinding needle is T-shaped.

The utility model has the advantages that: the utility model discloses a flexible of spring is flexible can let the grinding needle paste all the time and carry out work at the surface of work piece at the grinding in-process to be applicable to the abrasive polishing of dysmorphism face. Due to the pressure of the spring, the grinding needle is still attached to the surface of the workpiece to grind under the condition that the grinding needle is shortened due to loss during grinding.

Drawings

Fig. 1 is a schematic bottom view of the sleeve and stem arrangement.

Fig. 2 is a schematic cross-sectional view of the sleeve and stem construction.

FIG. 3 is a schematic view of a lapping needle.

Fig. 4 is a schematic view of the cover plate.

Fig. 5 is a schematic view of a combination of the cover plate, sleeve and stem structure.

In the above figures, 1, sleeve; 2. a handle bar; 3. a through hole; 4. grinding the needle; 5. and (4) protruding.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1 to 5. It should be understood that the structure, ratio, size and the like shown in the drawings attached to the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by those skilled in the art, and are not used for limiting the limit conditions that the present invention can be implemented, so that the present invention has no technical essential meaning, and any structure modification, ratio relationship change or size adjustment should still fall within the scope that the technical content disclosed in the present invention can cover without affecting the function that the present invention can produce and the purpose that the present invention can achieve. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for convenience of description, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof may be made without substantial technical changes, and the present invention is also regarded as the scope of the present invention.

As shown in fig. 1 to 5, a grinding head for a grinding and polishing device comprises a body and a cover plate, wherein the body comprises a sleeve 1 and a handle rod 2, the sleeve and the handle rod are fixedly connected, and the cover plate penetrates through the handle rod and is fixedly arranged at the end part of one end of the sleeve; a plurality of through holes 3 are formed in the sleeve, specifically 8 through holes in the embodiment, the through holes are stepped holes, and grinding needles 4 are accommodated in the through holes; the through hole is composed of a first section and a second section, the diameter of the second section is larger than that of the first section, and the first section is far away from the cover plate; the middle part of grinding needle is equipped with arch 5, and the diameter of this arch 5 is greater than the diameter of first section, and is less than or equal to the diameter of second section, and this arch will the grinding needle divide into two parts, and the first part is the portion of polishing, and the second part is the installation department, the portion of polishing by outside the through-hole is stretched out to the first section of through-hole, the cover is equipped with the spring on the installation department, this spring one end with the protruding conflict setting of grinding needle, the other end with the apron is contradicted and is set up, the length sum of arch and installation department is less than the length of the second section of through-hole, when the bistrique was polished the operation like this, allowed arch and installation department float from top to bottom.

The preferred embodiment is: the sleeve and the handle rod are of an integrally formed structure. Or a threaded hole is arranged in the center of the sleeve, a threaded section is arranged on the handle rod, and the threaded hole and the threaded section are connected through threads.

The preferred embodiment is: the grinding needle is made of copper, iron, aluminum, resin copper, resin aluminum, plastic steel, wood, bamboo, oilstone, fiber oilstone or artificial diamond. In this example, copper in particular, and in other embodiments abrasive materials such as: iron, aluminum, resin copper, resin aluminum, plastic steel, wood, bamboo, oilstone, fibrous oilstone, or synthetic diamond.

The preferred embodiment is: the cross-sectional shape of the end part of the grinding needle used for grinding and polishing is circular, triangular or elliptical.

The preferred embodiment is: the end face of the end part, used for grinding and polishing, of the grinding needle is an arc-shaped face, an inclined face or a spherical face.

The preferred embodiment is: the grinding part of the grinding needle is T-shaped.

The sleeve can be made of a cylindrical metal block after boring.

The utility model discloses a bistrique can the clamping at electric motor or pneumatic tool's front end, and it is rotatory with electric motor or pneumatic tool drive bistrique, because the bistrique pastes the work piece surface grinding work always, consequently can guarantee that the shape of face of work piece is indeformable and not the edge of collapsing.

The terminal surface of the tip when grinding and polishing is the inclined plane, installs towards clockwise according to the inclined plane during the equipment, because the inclined plane is towards clockwise rotation direction installation, makes things convenient for the abrasive material to get into the middle part of bistrique, improves grinding efficiency, goes up the ramp on dysmorphism face ramp easily, and can not destroy the original shape of a face of work piece.

The handle rod is provided with a groove, and a clamp spring is arranged in the groove so as to enable the cover plate to penetrate through the handle rod and be fixedly arranged at the end part of one end of the sleeve. Other fixing means may be screw fixing.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a bistrique for grinding and polishing device which characterized in that: the novel electric wrench comprises a body and a cover plate, wherein the body comprises a sleeve and a handle rod, the sleeve is fixedly connected with the handle rod, and the cover plate penetrates through the handle rod and is fixedly arranged at the end part of one end of the sleeve; a plurality of through holes are formed in the sleeve, and grinding needles are accommodated in the through holes; the through hole is composed of a first section and a second section, the diameter of the second section is larger than that of the first section, and the first section is far away from the cover plate; the middle part of grinding needle is equipped with the arch, and this arch will the grinding needle divide into two parts, and the first part is the portion of polishing, and the second part is the installation department, the portion of polishing by outside the through-hole was stretched out to the first section of through-hole, the cover is equipped with the spring on the installation department, this spring one end with the protruding conflict setting of grinding needle, the other end with the apron is contradicted and is set up, the length sum of arch and installation department is less than the length of the second section of through-hole.

2. The grinding head for a grinding and polishing machine according to claim 1, wherein: the sleeve and the handle rod are of an integrally formed structure.

3. The grinding head for a grinding and polishing machine according to claim 1, wherein: the grinding needle is made of copper, iron, aluminum, resin copper, resin aluminum, plastic steel, wood, bamboo, oilstone, fiber oilstone or artificial diamond.

4. The grinding head for a grinding and polishing machine according to claim 1, wherein: the cross-sectional shape of the end part of the grinding needle used for grinding and polishing is circular, triangular or elliptical.

5. The grinding head for a grinding and polishing machine according to claim 1, wherein: the end face of the end part, used for grinding and polishing, of the grinding needle is an arc-shaped face, an inclined face or a spherical face.

6. The grinding head for a grinding and polishing machine according to claim 1, wherein: the grinding part of the grinding needle is T-shaped.