WO2020155428A1

WO2020155428A1 - Energy-saving metallographic sample grinding machine

Info

Publication number: WO2020155428A1
Application number: PCT/CN2019/083998
Authority: WO
Inventors: 王喆琦; 张举明; 施黎明; 奚飞飞; 莫素芳
Original assignee: 福建青拓特钢技术研究有限公司
Priority date: 2019-01-29
Filing date: 2019-04-24
Publication date: 2020-08-06
Also published as: CN209055388U

Abstract

An energy-saving metallographic sample grinding machine, in the field of experimental detection equipment, the metallographic sample grinding machine comprising a machine case (1), a grinding apparatus disposed in the machine case (1) and a fixing apparatus disposed on the machine case; the grinding apparatus comprising a drive shaft, a driven shaft and multiple abrasive belts, the multiple abrasive belts being wrapped onto the drive shaft and driven shaft in succession, the multiple abrasive belts having successively higher grits; the fixing apparatus comprising a limiting plate (10) and multiple pressure blocks; the limiting plate (10) having disposed thereon multiple openings of different sizes. The energy-saving metallographic sample grinding machine can simultaneously grind multiple samples of different sizes, and can also simultaneously grind samples having different grinding requirements; it is not necessary to use multiple metallographic sample grinding machines, nor is it necessary to frequently change an abrasive belt, greatly decreasing grinding time, improving grinding efficiency, decreasing electrical power use and still having relatively high sample accuracy after grinding.

Description

An energy-saving metallographic sample grinding machine

Technical field

The utility model belongs to test detection equipment, in particular to an energy-saving metallographic sample grinding machine.

Background technique

Metallography is used to react the internal physical or chemical state of metals or alloys, and is used to detect and study the changes in the internal structure of metals or alloys caused by chemical composition, condensation conditions, pressure processing, welding, and heat treatment and their effects on performance The law of influence. The metallographic structure reflects the specific form of metal metallography, such as martensite, austenite, and ferrite, which are common in stainless steel. The prerequisite for observing the metallographic structure is to prepare the metallographic sample first. The preparation of the metallographic sample is mainly made by grinding and polishing the metallographic block sample, which can be prepared manually or mechanically. Compared with manual sample preparation, mechanical sample preparation is more efficient and accurate.

The commonly used equipment for mechanical sample preparation is a metallographic sample grinder. The existing metallographic sample grinder can only use one or two types of abrasive belts or wheels for grinding at the same time. The sample must be hand-held during the overshoot. According to the different needs of different samples, multiple metallographic sample grinding prototypes are needed or the abrasive belt or grinding wheel needs to be replaced multiple times, which will increase the grinding time and power consumption, which is not conducive to improving the grinding efficiency.

technical problem

In order to overcome the above-mentioned defects of the prior art, the technical problem to be solved by the present utility model is to provide an energy-saving metallographic sample grinding sample machine that can polish multiple samples at the same time without frequent replacement of the sanding belt.

Technical solutions

In order to solve the above technical problems, the technical solution adopted by the present utility model is: an energy-saving metallographic sample grinding machine, including a chassis, a polishing device arranged in the chassis, and a fixing device arranged on the chassis;

The cabinet includes a box body and a bottom plate. The box body is arranged on the bottom plate in a stepped shape. The upper bottom surface of the box body includes a first bottom surface that is connected in a horizontal direction and a second bottom surface perpendicular to the bottom plate. The third bottom surface of the bottom plate; the middle of the second bottom surface is provided with a servo motor and a ball screw connected to the output end of the servo motor, the ball screw is perpendicular to the bottom plate, and a sliding plate is respectively provided on both sides of the ball screw Rail; the third bottom surface is provided with an opening;

The polishing device includes a driving shaft, a driven shaft and a plurality of abrasive belts; the polishing device is arranged below the opening of the third bottom surface; the driving shaft and the driven shaft are arranged on the same horizontal surface, and the plurality of abrasive belts Wrap around the driving shaft and the driven shaft in sequence, and the meshes of the multiple abrasive belts increase in sequence;

The fixing device includes a limit plate and a plurality of pressure blocks; the limit plate is provided with a plurality of openings of different sizes, and the plurality of openings are respectively located above the plurality of sand belts, and the limit A screw sleeve is provided in the middle of one side of the plate, and a sliding block is respectively provided on both sides of the screw sleeve. The sliding block is slidably connected with the sliding rail. The sizes of the plurality of openings are the same.

Wherein, the polishing device further includes a water tank and a water spray device; the water spray device is arranged in the water tank, the water tank is arranged under the sand belt, and the water spray end of the water spray device is arranged toward the sand belt; the box body A water tank outlet is provided on the side wall of the water tank, and a first box door that can be opened and closed relative to the side wall of the box body is provided on the water tank outlet.

Wherein, the side wall of the cabinet is provided with a dust suction port, the dust suction port is provided with a sealing ring, and the dust suction port is provided with a second door that can be opened and closed relative to the side wall of the box body.

Wherein, the plurality of openings of different sizes provided on the limiting plate are square openings with a side length of 10-25 mm.

Wherein, a plurality of recesses are provided on the surface of the driving shaft and the driven shaft, and the length of the recesses is the same as the width of the abrasive belt.

Wherein, it also includes a rack, the cabinet is arranged at the upper end of the rack, the lower end of the rack is provided with a storage cabinet, and the bottom of the rack is provided with at least 3 universal wheels.

Beneficial effect

The beneficial effect of the utility model is that by setting a plurality of abrasive belts of different models, and at the same time, a limit plate with openings is arranged above the abrasive belt, so that the metallographic sample grinding machine can simultaneously perform a test on multiple groups of different The required samples are polished, which avoids the use of multiple metallographic sample grinding prototypes at the same time, and also avoids multiple replacements of abrasive belts or grinding wheels, improves the efficiency of polishing, reduces power consumption, and is more conducive to energy saving; The sample to be polished is directly fixed on the abrasive belt through the pressure block, which avoids the problem of the falling of the sample caused by the reduction of the holding force of the holding device for a long time, and also avoids the hand-held sample, which is less abraded or scratched. The problem of the operator, at the same time, the pressure block is evenly pressed, which further ensures the accuracy of polishing.

Description of the drawings

Figure 1 is a schematic diagram of the structure of the metallographic sample grinding machine in the specific embodiment of the utility model;

Figure 2 is a schematic side view of the structure of the metallographic sample grinding machine according to the specific embodiment of the present invention;

Label description: 1. Case; 2. First bottom surface; 3. Second bottom surface; 4. Third bottom surface; 5. Servo motor; 6. Ball screw; 7. Slide rail; 8. Slider; 9. Abrasive belt ; 10. Limit board.

Embodiments of the invention

In order to describe in detail the technical content, the achieved purpose and effects of the present utility model, the following description will be given in conjunction with the embodiments and accompanying drawings.

The most critical idea of the utility model is that by arranging a plurality of abrasive belts and a position-adjustable limit plate, the sample is placed on the limit plate and contacted with the abrasive belt to complete polishing.

Please refer to Figures 1 and 2, the energy-saving metallographic sample grinding prototype of the present invention includes a case 1, a polishing device arranged in the case 1, and a fixing device arranged outside the case 1; the case 1 It includes a box body and a bottom plate. The box body is arranged on the bottom plate in a stepped shape. The upper bottom surface of the box body includes a first bottom surface 1, a second bottom surface 3 perpendicular to the bottom plate and a second bottom surface 3 which are connected in a horizontal direction and are connected in a horizontal direction. The third bottom surface 4; the middle of the second bottom surface 3 is provided with a servo motor 5 and a ball screw 6 connected to the output end of the servo motor 5, the ball screw 6 is perpendicular to the bottom plate, the ball screw 6 A sliding rail 7 is respectively provided on both sides; an opening is provided on the third bottom surface 4;

The grinding device includes a variable frequency motor, a driving shaft, a driven shaft, and a plurality of abrasive belts 9; the grinding device is arranged below the third bottom surface 4; the variable frequency motor and the driving shaft are connected by a coupling, and the driving shaft Set on the same horizontal surface as the driven shaft, a plurality of the abrasive belts 9 are wrapped around the driven shaft of the driving shaft in turn, and the meshes of the plurality of abrasive belts 9 are sequentially increased;

The fixing device includes a limiting plate 10 and a plurality of pressure blocks; a plurality of openings of different sizes are provided on the limiting plate 10, and a screw sleeve is provided in the middle of one side of the limiting plate 10, and A sliding block 8 is provided on both sides of the screw sleeve. The sliding block 8 is slidably connected to the sliding rail 7. The number of the pressure blocks is the same as the number of the openings on the limit plate 10, and a plurality of the pressure blocks The size of is the same as the size of the multiple openings of the limiting plate 10 respectively.

The working process of the utility model is as follows: spray a little water on the sanding belt 9 and turn on the frequency conversion motor. The frequency conversion motor drives the driving shaft to rotate, and then drives the sanding belt 9 wound around the driving shaft and the driven shaft to rotate. After the belt 9 is completely wetted with moisture, turn off the frequency conversion motor; turn on the servo motor 5, and the servo motor 5 drives the limit plate 10 connected with the ball screw 6 to move along the axial direction of the ball screw 6, thereby adjusting the limit plate 10 and Adjust the height of the limit plate 10 according to the height of the sample to be polished, and place the sample to be polished from the opening of the limit plate 10 of similar size on the corresponding abrasive belt 9. Then, the pressure block matched with the opening on the limit plate 10 is placed on the sample to be polished, the frequency conversion motor is turned on, the speed is adjusted, and the sample to be polished is polished.

It can be seen from the above description that the beneficial effect of the present invention is that by arranging multiple abrasive belts of different types, and at the same time, setting a limit plate with openings above the abrasive belt, so that the metallographic sample grinding machine can simultaneously Grinding multiple groups of samples with different requirements avoids the use of multiple metallographic sample grinding machines at the same time, and also avoids multiple replacements of abrasive belts or grinding wheels, which improves the efficiency of grinding and reduces power consumption. It is more conducive to saving energy; and the sample to be polished is directly fixed on the abrasive belt through the limit plate and the pressure block, which avoids the problem of the falling of the sample caused by the reduction of the holding force of the holding device for a long time, and also avoids the hand-held sample. The sample is less abraded or scratched to the operator, and the pressure block is evenly pressed, which further ensures the accuracy of polishing.

Further, the polishing device further includes a water tank and a water spray device; the water spray device is arranged in the water tank, the water tank is arranged below the sanding belt 9, and the water spraying end of the water spraying device is arranged toward the sanding belt 9; A water tank outlet is provided on the side wall of the box body, and a first box door that can be opened and closed relative to the side wall of the box body is provided on the water tank outlet; the water spray device includes a spray head and a water pipe connected sequentially from top to bottom And a small water pump.

It can be seen from the above description that a water tank and a water spray device are set at the bottom of the sand belt in the chassis, which can automatically wet the sand belt without manual water spraying, which is more convenient to use. At the same time, spray water on the sand belt 9 at the bottom of the sand belt. It can also flush the dust on the abrasive belt and make it fall into the water tank, thereby reducing the dust pollution in the cabinet, reducing the number of times of cleaning the cabinet, and increasing the service life of the metallographic sample grinding machine.

Further, a dust suction port is provided on the side wall of the cabinet 1, a sealing ring is provided on the dust suction port, and a second door that can be opened and closed relative to the side wall of the box body is provided on the dust suction port.

It can be seen from the above description that a dust suction port is provided on the side wall of the chassis, and the dust suction device can be connected to the dust suction port to clean up the dust remaining in the case. The dust suction port is equipped with a sealing ring to prevent air from flowing out of the gap and lift Improve the efficiency and effect of dust collection.

Further, the plurality of openings of different sizes provided on the limiting plate 10 are square openings with a side length of 10-25 mm.

It can be seen from the above description that a square opening of 10-25mm can accommodate all types of samples required for general testing, and the opening of the limit block can be customized according to actual needs.

Further, a plurality of recesses are provided on the surface of the driving shaft and the driven shaft, and the length of the recesses is the same as the width of the abrasive belt 9.

It can be seen from the above description that there are multiple recesses on the surface of the driving shaft and the driven shaft, and the length of the recesses is the same as the width of the sanding belt, so that multiple sanding belts can be stuck in the corresponding recesses respectively to ensure the sand The belts will not shift and will not affect each other.

Further, the metallographic sample grinding machine further includes a frame, the case 1 is arranged at the upper end of the frame, the lower end of the frame is provided with a storage cabinet, and the bottom of the frame is provided with at least three Universal wheel.

It can be seen from the above description that there is a storage cabinet at the lower end of the rack to store the pressure block, to ensure that the pressure block is used with the metallographic sample grinding machine to avoid loss caused by random placement after use; a universal wheel is set at the bottom of the rack It is convenient to move the entire metallographic sample grinding machine to any position.

The first embodiment of the utility model is:

A metallographic sample grinding prototype machine, comprising a case 1, a polishing device arranged in the case 1, and a fixing device arranged on the case 1;

The case 1 includes a case body and a bottom plate. The case body is stepped on the bottom plate. The upper bottom surface of the box body consists of a first bottom surface away from the bottom plate 1, a second bottom surface 3 perpendicular to the bottom plate and a bottom surface close to the bottom plate. The third bottom surface 4 is connected in sequence; the middle of the second bottom surface 3 is provided with a servo motor 5 and a ball screw 6 connected to the output end of the servo motor 5. The ball screw 6 is perpendicular to the bottom plate, and the ball screw A sliding rail 7 is respectively provided on both sides of 6; an opening is provided on the third bottom surface 4;

The sanding device includes a driving shaft, a driven shaft and a plurality of sand belts 9; the sanding device is arranged below the third bottom surface 4; the driving shaft and the driven shaft are arranged on the same horizontal surface, and the sand The belt 9 is wrapped around the driving shaft and the driven shaft in turn, and the meshes of the plurality of abrasive belts 9 are sequentially increased;

The fixing device includes a limiting plate 10 and a plurality of pressure blocks; a plurality of openings of different sizes are provided on the limiting plate 10, and a screw sleeve is provided in the middle of one side of the limiting plate 10, and A sliding block 8 is provided on both sides of the screw sleeve, and the sliding block 8 is slidably connected with the sliding rail 7. The size of the plurality of pressure blocks is the same as the size of the plurality of openings on the limiting plate 10.

The second embodiment of the utility model is:

The polishing device includes a driving shaft, a driven shaft and a plurality of abrasive belts 9; the polishing device is arranged below the third bottom surface 4; the driving shaft and the driven shaft are arranged on the same horizontal surface, and the driving shaft is There are multiple depressions on the surface of the driven shaft, and the length of the recesses is the same as the width of the sanding belt 9; a number of the sanding belts 9 are wrapped around the driving shaft and the driven shaft in turn, and the The mesh number of the abrasive belt 9 increases sequentially;

The fixing device includes a limit plate 10, a plurality of pressure blocks, a water tank, and a water spray device; the limit plate 10 is provided with a plurality of openings of different sizes, and the center of one side of the limit plate 10 is provided The screw sleeve is provided with a sliding block 8 on both sides of the screw sleeve. The sliding block 8 is slidably connected with the sliding rail 7. The size of the plurality of pressure blocks corresponds to the plurality of openings on the limit plate 10 The size of the water spray device is the same; the water spray device is arranged in the water tank, the water tank is arranged under the sand belt 9, and the water spray end of the water spray device is set toward the sand belt 9; a water tank is provided on the side wall of the box body Outlet, the outlet of the water tank is provided with a first box door that can be opened and closed relative to the side wall of the box body;

The side wall of the cabinet 1 is provided with a dust suction port, the dust suction port is provided with a sealing ring, and the dust suction port is provided with a second door that can be opened and closed relative to the side wall of the box body;

A plurality of openings of different sizes provided on the limiting plate 10 are square openings with a side length of 10-25 mm;

The metallographic sample grinding prototype machine also includes a frame, the case 1 is arranged at the upper end of the frame, the lower end of the frame is provided with a storage cabinet, and the bottom of the frame is provided with at least 3 universal wheels .

In summary, the energy-saving metallographic sample grinding machine provided by the present utility model is equipped with multiple abrasive belts of different types, and at the same time, a limit plate with openings is arranged above the abrasive belt, so that the metallographic The sample grinding machine can polish multiple groups of samples with different requirements at the same time, avoiding the use of multiple metallographic sample grinding prototypes at the same time, and avoiding multiple replacements of abrasive belts or grinding wheels, which improves the efficiency of polishing. Reduce power consumption, which is more conducive to energy saving;

The sample to be polished is directly fixed on the abrasive belt through the pressure block, which avoids the problem of the falling of the sample caused by the reduction of the holding force of the holding device for a long time, and also avoids the hand-held sample, which is less abraded or scratched. The problem of the operator, at the same time, the pressure block is evenly pressed, which further ensures the accuracy of polishing;

By setting a water tank and a water spray device at the bottom of the sand belt in the chassis, the sand belt can be automatically wetted without manual operation, which is more convenient to use. At the same time, spraying water on the sand belt at the bottom of the sand belt can also spray water on the sand belt. Scour the dust to make it fall into the sink, thereby reducing dust pollution in the cabinet, reducing the number of times of cleaning the cabinet, and increasing the service life of the metallographic sample mill;

By providing multiple recesses on the surface of the driving shaft and the driven shaft, and the length of the recesses is the same as the width of the sanding belt, the multiple sanding belts can be respectively stuck in the corresponding recesses to ensure that the sanding belt will not move. Position, will not affect each other;

By setting the dust suction port on the side wall of the chassis, the dust suction device can be connected to the dust suction port to clean up the dust remaining in the chassis. The dust suction port is equipped with a sealing ring to prevent air from flowing out of the gap and improve dust collection Efficiency and effectiveness;

A storage cabinet is provided at the lower end of the frame to facilitate the storage of the pressure block, and to ensure that the pressure block is used with the metallographic sample grinding machine to avoid loss caused by random placement after use; the universal wheel is set at the bottom of the frame to facilitate the removal of the entire gold The phase sample grinding machine moves to any position.

The energy-saving metallographic sample grinding machine provided by the utility model can polish multiple samples of different sizes at the same time, and can also polish samples with different grinding requirements at the same time. There is no need to use multiple metallographic samples at the same time during grinding. The sample grinding machine does not need to replace the abrasive belt frequently, which greatly reduces the grinding time, improves the grinding efficiency, reduces the use of electric energy, and the precision of the polished sample is higher.

The above descriptions are only examples of the utility model, and do not limit the scope of the utility model's patents. Any equivalent transformations made using the contents of the utility model description and drawings, or directly or indirectly applied to related technical fields, are the same. The principle is included in the scope of patent protection of this utility model.

Claims

An energy-saving metallographic sample grinding machine, which is characterized by comprising a cabinet, a polishing device arranged in the cabinet and a fixing device arranged on the cabinet;

The cabinet includes a box body and a bottom plate. The box body is stepped on the bottom plate. The upper bottom surface of the box body consists of a first bottom surface away from the bottom plate, a second bottom surface perpendicular to the bottom plate, and a third bottom surface close to the bottom plate. Connected sequentially; the middle of the second bottom surface is provided with a servo motor and a ball screw connected to the output end of the servo motor, the ball screw is perpendicular to the bottom plate, and a slide rail is respectively provided on both sides of the ball screw; An opening is provided on the third bottom surface;

The sanding device includes a driving shaft, a driven shaft and a plurality of abrasive belts; the sanding device is arranged below the third bottom surface; the driving shaft and the driven shaft are arranged on the same horizontal surface, and the plurality of abrasive belts are arranged in sequence Wrap around on the driving shaft and the driven shaft, the meshes of the multiple abrasive belts increase in turn;

The fixing device includes a limit plate and a plurality of pressure blocks; the limit plate is provided with a plurality of openings of different sizes, and the middle part of one side of the limit plate is provided with a screw sleeve, and the screw sleeve A sliding block is respectively provided on both sides of the sliding block, the sliding block is slidably connected with the sliding rail, and the size of the plurality of pressure blocks is the same as the size of the plurality of openings on the limiting plate.
The energy-saving metallographic sample grinding machine according to claim 1, wherein the grinding device further comprises a water tank and a water spray device; the water spray device is arranged in the water tank, and the water tank is arranged under the sanding belt The water spray end of the water spray device is arranged toward the sand belt; the side wall of the box body is provided with a water tank outlet, and the water tank outlet is provided with a first box door that can be opened and closed relative to the side wall of the box body.
The energy-saving metallographic sample milling machine according to claim 1, wherein a dust suction port is provided on the side wall of the cabinet, a sealing ring is provided on the dust suction port, and the dust suction port is provided with an opposite The second box door whose side wall can be opened and closed.
The energy-saving metallographic sample grinding machine according to claim 1, wherein the plurality of openings of different sizes provided on the limit plate are square openings with a side length of 10-25 mm.
The metallographic sample grinding machine according to claim 1, wherein a plurality of depressions are provided on the surface of the driving shaft and the driven shaft, and the length of the depressions is the same as the width of the abrasive belt.
The energy-saving metallographic sample grinding machine according to claim 1, characterized in that it further comprises a frame, the frame is arranged at the upper end of the frame, the lower end of the frame is provided with a storage cabinet, and the machine At least 3 universal wheels are provided at the bottom of the frame.