CN210255675U

CN210255675U - High-precision gem facet grinding machine

Info

Publication number: CN210255675U
Application number: CN201920943785.4U
Authority: CN
Inventors: 卓坤静
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-06-21
Filing date: 2019-06-21
Publication date: 2020-04-07
Anticipated expiration: 2029-06-21

Abstract

The utility model discloses a high-precision gem facet grinding machine, which comprises a machine base, a high-precision mechanical arm arranged on the machine base, a grinding mechanism and a dripping water cooling device, wherein the grinding mechanism is arranged on the machine base and is positioned below a working handle of the high-precision mechanical arm; the dropping water cooling device is arranged on the machine base, and a dropping water pipe orifice of the dropping water cooling device is positioned right above the polishing mechanism; the high-precision manipulator comprises a height-adjustable upright post, a rocker arm seat, a handle structure, an indexing adjusting mechanism and an angle adjusting mechanism for adjusting the vertical included angle between the handle structure and the grinding table top; the rocker arm seat is locked on the upright post through a locking screw of the rocker arm seat, the handle structure is arranged on the rocker arm seat, the indexing adjusting mechanism is arranged on the handle structure, and the angle adjusting mechanism is arranged in the rocker arm seat. The utility model has the advantages of high accuracy, high efficiency, the reference surface that the regulation precious stone that can be accurate was polished realizes work handle's angular adjustment.

Description

High-precision gem facet grinding machine

Technical Field

The utility model belongs to the technical field of jewelry processing mechanical equipment and specifically relates to a high accuracy precious stone facet grinds machine.

Background

The gem faceting processing is a common processing technique in the jewelry processing industry, and is mainly suitable for grinding processing of gems and semi-gems with the characteristics of transparency, high glossiness and the like so as to embody the quality of gem beauty; the technological process includes fixing the jewel on the handle, grinding the jewel in different angle and level by means of the grinding disc with diamond-containing plane, grinding and polishing according to the required steps to form rough jewel, and grinding to form regular level and smooth jewel product.

The existing faceting machine on the market is composed of a lifting platform with a simpler structure and a constant-speed motor, and the specific grinding angle, the grinding depth and the specific height value of the lifting platform cannot be accurately set in the processing process, so that the grinding angle cannot be accurately controlled, each facet of a ground finished product is different in size and depth, and the light refraction and reflection effects of the finished product are influenced; and moreover, the grinding disc is driven by the constant-speed motor, so that the rotating speed cannot be adjusted according to the hardness degree of the gem and the requirements of the grinding and polishing process, and the processing efficiency and the finished product effect are reduced.

The manipulator used by the existing gem facet grinding machine is designed in a split mode, the lifting upright post and the working handle are separated, when the manipulator is used, the working handle is only placed on the lifting upright post, and no fixed point or low fixed matching precision exists; the grinding angle can be judged only by observing the relative position of a pointer on the working handle and the scale marks of the dial on the rocker arm seat by naked eyes of an operator, reading errors are easy to generate, the working handle cannot be fixed on a certain specified angle, and finished products with uniform angles cannot be ground in multi-surface grinding.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a high accuracy, efficient precious stone facet grinds machine has easy operation, can adjust the angle of polishing, and the control surface of polishing reaches unanimous even, the control degree of depth of polishing.

In order to achieve the above purpose, the technical scheme of the utility model is as follows: a high-precision gem facet grinding machine comprises a machine base, a high-precision mechanical arm arranged on the machine base, a grinding mechanism and a dripping water cooling device, wherein the grinding mechanism is arranged on the machine base and is positioned below a working handle of the high-precision mechanical arm; the dropping water cooling device is arranged on the machine base, and a dropping water pipe orifice of the dropping water cooling device is positioned right above the polishing mechanism; the high-precision manipulator comprises a vertical column with adjustable height, a rocker arm seat, a handle structure for connecting a sticky rod, an indexing adjusting mechanism for adjusting polishing indexing and an angle adjusting mechanism for adjusting a vertical included angle between the handle structure and a grinding table top; the rocker arm seat is locked on the upright post through a locking screw of the rocker arm seat, the handle structure is arranged on the rocker arm seat, the indexing adjusting mechanism is arranged on the handle structure, and the angle adjusting mechanism is arranged in the rocker arm seat.

The high-precision gem facet grinding machine comprises a water retaining basin, a grinding disc and a grinding clamp, wherein the grinding disc is used for grinding a gem, the grinding disc is installed in the water retaining basin and is connected with an adjustable speed motor installed in a machine base through a rotating shaft, and the grinding clamp is used for locking the grinding disc in the rotating shaft.

The high-precision gem facet grinding machine is characterized in that a power supply and a motor controller for driving a speed regulating motor are further installed in the machine base, and the motor controller is respectively connected with the power supply and the speed regulating motor.

The high-precision gem facet grinder also comprises a grinding mechanism for controlling the grinding depth of the gem, wherein the grinding mechanism is arranged on one side of the rocker arm seat; the grinding mechanism comprises a grinding depth indicating meter and a grinding depth limiting screw, the grinding depth indicating meter is connected with the handle structure through a connecting element arranged in the rocker arm seat, the grinding depth of the handle structure is transmitted to the grinding depth indicating meter to be displayed, and the grinding depth limiting screw is arranged right below the grinding depth indicating meter.

The high-precision gem facet grinding machine is characterized in that a handle horizontal fine adjustment mechanism for finely adjusting the horizontal angle of a working handle in the handle structure is further arranged on the handle structure; the handle horizontal fine adjustment mechanism comprises a horizontal angle fine adjustment hand wheel and a dividing wheel control pressure rod, and the dividing wheel control pressure rod is arranged on the handle structure and used for locking the dividing adjustment mechanism; the horizontal angle fine adjustment hand wheel is connected with the indexing wheel control pressing rod through the optical axis and drives the indexing wheel control pressing rod fixed on the optical axis to move left and right.

The high-precision gem facet grinding machine is characterized in that the stand column comprises a stand column shaft core and a stand column outer sleeve, and the stand column outer sleeve is sleeved on the stand column shaft core; and a height fine adjustment nut for fine adjusting the height of the stand column is further installed at the top of the stand column outer sleeve.

The high-precision gem facet grinding machine comprises a handle structure, a grinding wheel, a.

The high-precision gem facet grinding machine is characterized in that the indexing adjusting mechanism comprises an indexing wheel and an indexing wheel nut which are arranged at the rear end of the working handle, and the indexing wheel nut, the indexing wheel and the handle rotating shaft are fixed on the same axis and are the same rotating body.

The high-precision gem facet grinding machine is characterized in that the angle adjusting mechanism comprises an angle adjusting hand wheel and a transmission structure, the transmission structure is installed in the rocker arm seat, the angle adjusting hand wheel drives the transmission structure to transmit, and the transmission structure drives the handle structure to adjust the angle; the angle adjusting hand wheel is arranged on the side surface of the rocker arm seat; the transmission structure comprises a push screw rod, a sliding block, a rack and a limiting gear, wherein the push screw rod, the sliding block, the rack and the limiting gear are installed in a rocker arm seat, two ends of the push screw rod are respectively connected with an angle adjusting hand wheel and the sliding block, the sliding block is fixedly connected with one end of the rack through a pin shaft, the rack and the limiting gear are installed in a mutually meshed mode, and the limiting gear is fixedly connected with a handle structure through a rotating shaft.

The high-precision gem facet grinding machine is characterized in that a control button, a working table lamp and a mounting groove for mounting a stand column are further arranged on the machine base, and a sealing gasket is further arranged at the bottom of the mounting groove.

Has the advantages that: the utility model discloses an upright post is installed in the mounting groove, so high accuracy manipulator can be locked on the frame through the base cooperation fast, utilize grinding machanism to polish the precious stone that glues on the high accuracy manipulator, utilize rocking arm seat and rocking arm seat locking screw to mutually support simultaneously and install on the upright post, so when needing to adjust the height great, can loosen rocking arm seat locking screw, reciprocate the rocking arm seat to suitable height, then lock rocking arm seat locking screw and fix the rocking arm seat on the upright post, can realize the height of thick strip adjustment handle structure; meanwhile, the height fine-tuning nut arranged at the top of the upright post can be rotated to drive the upright post outer sleeve to adjust the height up and down, so that the rocker arm seat is driven to finely adjust the height up and down. In addition, the utility model rotates the angle adjusting hand wheel to drive the pushing screw rod to rotate, when the pushing screw rod rotates, the sliding block is driven to slide back and forth, and simultaneously the straight rack on the sliding block is driven to slide back and forth, so as to adjust the vertical included angle between the handle structure and the grinding table surface; meanwhile, the indexing wheel in the indexing adjustment structure can be rotated to drive the handle rotating shaft to rotate, so that a certain number of facets can be ground on the same circumferential surface of the gem, and the indexing surfaces are uniform. In addition, the utility model is simple in operation, the processing of each step can have concrete numerical value to correspond at the equipment of this invention, and the operator only needs just to adjust mechanical device according to the data of this facet precious stone and just can process qualified finished product, and even inexperienced beginner can all enter the door fast, uses the equipment of this invention can let the facet of precious stone polish the easy teaching and popularization and application of technology.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of another angle of the overall structure of the present invention.

Fig. 3 is a schematic structural view of the high-precision manipulator of the present invention.

Fig. 4 is a schematic structural diagram of the middle frame of the present invention.

Fig. 5 is a schematic structural diagram of the polishing mechanism and the drip cooling device of the present invention.

Fig. 6 is the overall structure diagram of another angle of the middle and high precision manipulator of the present invention.

Fig. 7 is a schematic view of a partial structure of a high-precision robot of the present invention.

Fig. 8 is a left side view of the high-precision robot of the present invention.

Fig. 9 is a cross-sectional view taken along line a-a of fig. 8 according to the present invention.

Fig. 10 is a front view of the high-precision robot of the present invention.

Fig. 11 is a cross-sectional view of a1-a1 of fig. 10 according to the present invention.

Fig. 12 is a left side view of the high-precision robot of the present invention.

Fig. 13 is a cross-sectional view of B-B of fig. 12 according to the present invention.

Fig. 14 is a right side view of the high-precision robot of the present invention.

Fig. 15 is a cross-sectional view of C-C of fig. 14 in accordance with the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention will be described in further detail below with reference to the accompanying drawings and examples.

As shown in fig. 1-15, the utility model discloses a high-precision gem facet grinder, which comprises a base 100, a high-precision mechanical arm 200 mounted on the base 100, a grinding mechanism 300 and a dripping water cooling device 400, wherein the grinding mechanism 300 is mounted on the base 100 and is positioned below a working handle of the high-precision mechanical arm 200; the drip cooling device 400 is mounted on the machine base 100, and a drip nozzle 401 of the drip cooling device 400 is positioned right above the grinding mechanism 300; the high-precision manipulator 200 comprises a height-adjustable upright post 1, a rocker arm seat 2, a handle structure 3 for connecting a sticky rod, an indexing adjusting mechanism 4 for adjusting polishing indexing and an angle adjusting mechanism 5 for adjusting a vertical included angle between the handle structure 3 and a grinding table board; the lower end of the upright post 1 is arranged on the machine base 100 in a matching way through a base 6; the rocker arm seat 2 is locked on the upright post 1 through a rocker arm seat locking screw 2a, the handle structure 3 is installed on the rocker arm seat 2, the indexing adjusting mechanism 4 is installed on the handle structure 3, and the angle adjusting mechanism is installed in the rocker arm seat; the angle adjusting mechanism 5 comprises an angle adjusting hand wheel 7 and a transmission structure 8, the transmission structure 8 is installed in the rocker arm seat 2, the angle adjusting hand wheel 7 drives the transmission structure 8 to transmit, and the transmission structure 8 drives the handle structure 3 to adjust the angle; the angle adjusting handwheel 7 is arranged on the side surface of the rocker arm seat 2.

Adopt above-mentioned structure, the utility model discloses a rocking arm seat passes through rocking arm seat locking screw locking on the stand, so when the rocking arm seat need be done a bigger size height control on the stand, can loosen rocking arm seat locking screw, the operation can reciprocate suitable height with the rocking arm seat, then locking rocking arm seat locking screw with the rocking arm seat fix on the stand can, simultaneously because handle structure is on the rocking arm, so can realize adjusting handle structure's height, the suitable scope is adjusted to the work handle height in the handle structure. In addition, the indexing adjusting mechanism is further mounted on the handle structure, so that the accurate adjustment of the indexing surface can be realized. Meanwhile, the angle adjusting hand wheel arranged at the rear end of the rocker arm seat can be used for driving a transmission structure arranged in the rocker arm seat, so that the vertical included angle between a working handle in the handle structure and the grinding table-board is changed.

In addition, the grinding mechanism is matched with the high-precision manipulator, so that the gem can be ground, and the drip cooling area device can drip and cool the grinding disc and the surface of the gem; simultaneously the utility model is simple in operation, the processing of each step all can have concrete numerical value to correspond at equipment, and the operator only needs just can process qualified finished product according to the mechanical device of data adjustment of this facet precious stone, and even inexperienced beginner can all enter the door fast.

The high-precision gem facet grinder comprises a water retaining basin 301, a grinding disc 302 for grinding a gem and a grinding clamp 303, wherein the grinding disc 302 is installed in the water retaining basin 301 and is connected with an adjustable speed motor 500 installed in a stand 100 through a rotating shaft, and the grinding clamp 303 is used for locking the grinding disc 302 on the rotating shaft.

So through installing the abrasive disc in keeping off the basin, utilize grinding fixture to lock the pivot of abrasive disc and motor together, so drip the water that cooling device dripped when polishing, can be collected by the manger plate basin, when placing and polish, the water droplet flies out.

Preferably, the dripping cooling device 400 comprises a support rod 401, a water tank 402 and a bendable dripping pipe 403, wherein the support rod 401 is fixed on the stand 100, the water tank 402 is fixed at the upper end of the support rod 401, and the dripping pipe 403 is connected with the bottom end of the water tank 402.

The high-precision gem facet grinding machine is characterized in that a power supply 101 and a motor controller 102 for driving a speed regulating motor are further installed in the machine base 100, and the motor controller 102 is respectively connected with the power supply 101 and the speed regulating motor 500, so that the rotating speed of a grinding disc can be controlled through the motor controller, and grinding is more reasonable.

Indexing surface: a certain number of facets, called index surfaces, are ground on the same circumferential surface of the stone.

In order to have a uniform size for each facet of the gemstone, it is necessary to precisely control the depth of cut for each facet.

The utility model discloses still include a grinding mechanism 9 that is used for controlling the precious stone and grinds the degree of depth, this grinding mechanism 9 is installed in one side of rocking arm seat 2, and is connected with handle structure 3.

Preferably, the grinding mechanism 9 comprises a grinding depth indicator gauge 10 and a grinding depth limiting screw 11, the grinding depth indicator gauge 10 is connected with the handle structure 3 through a connecting element arranged in the rocker arm seat 2, the grinding depth of the handle structure 3 is transmitted to the grinding depth indicator gauge 10 to be displayed, and the grinding depth limiting screw 11 is arranged right below the grinding depth indicator gauge 10.

The grinding depth indicating gauge 10 comprises an indicating dial 27, a dial mounting seat 28 and a transmission connecting piece 29 for transmitting the grinding depth of a working handle, wherein the transmission connecting piece 29 is mounted in the dial mounting seat 28 and is connected with a connecting element, so that the connecting element shifts the transmission connecting piece 29, a pointer of the indicating dial 27 is changed, and a grinding depth limiting screw 11 is mounted at the bottom of the dial mounting seat 28; and a return spring 600 for transferring the reset of the connecting piece is also arranged at the bottom of the dial plate mounting seat 28.

After the structure is adopted, the working handle in the handle structure of the utility model transmits the grinding depth to the grinding depth indicator through the connecting element when rotating, so that an operator can obtain the grinding depth value through the indication of the pointer; in addition, a grinding depth limiting screw is designed right below the grinding depth indicating gauge, and the grinding depth is controlled to be a certain fixed depth by adjusting the length of the grinding depth limiting screw.

Preferably, the handle structure 3 comprises a working handle 30 and a handle rotating shaft 31, the handle rotating shaft 31 is inserted into the working handle 30 through a rotating shaft, so that the handle rotating shaft 31 can rotate relative to the working handle 30, the adhesive rod inserted into the handle rotating shaft can rotate, and the gemstone adhered on the adhesive rod can adjust the index surface to be polished along with the rotation of the adhesive rod.

Preferably, a handle horizontal fine-adjustment mechanism 12 for fine-adjusting the horizontal angle of the working handle in the handle structure is further installed on the handle structure 3.

In actual production, the handle horizontal fine adjustment mechanism 12 comprises a horizontal angle fine adjustment hand wheel 120 and an indexing wheel control pressure rod 121, and the indexing wheel control pressure rod 121 is installed on the handle structure 3 and used for locking the indexing adjustment mechanism 4; the horizontal angle fine adjustment hand wheel 120 is connected with the index wheel control pressure rod 121 through the optical axis 13, and drives the index wheel control pressure rod 121 fixed on the optical axis 13 to move left and right.

After the structure is adopted, the utility model rotates the fine adjustment hand wheel of the horizontal angle to drive the optical axis to move left and right, and the optical axis drives the indexing wheel control press rod fixed on the optical axis to move left and right, and the part of the indexing wheel sleeved in the working handle is provided with a tooth groove on the circumferential surface due to the scale on the indexing wheel; one end of the indexing wheel control pressure rod is in contact with the tooth grooves of the indexing wheel, and when the indexing wheel control pressure rod tightly presses the tooth grooves of the indexing wheel, the handle rotating shaft cannot rotate, so that the indexing wheel can be driven to rotate at a small angle by the movement of the pressure rod, and the handle rotating shaft is driven to adjust the horizontal angle.

Preferably, the stand 1 includes stand axle core 14 and stand outer tube 15, stand outer tube 15 suit is on stand axle core, stand outer tube 15's internal diameter slightly is greater than stand axle core 14's external diameter, so when the suit of stand outer tube 15 is in stand axle core 14, can slowly discharge the air in the stand outer tube 15 from the vacant gap of lateral wall, so need not heavily extrude the stand outer tube during the suit, also can not be because of exhaust velocity is too fast, stand outer tube 15 and stand axle core 14 collide. In actual production, the outer tube wall of the column outer tube 15 is provided with a scale 16, and the scale takes a certain height of the column outer tube 15 as a zero scale.

Preferably, the top of the stand outer tube 16 is provided with a height fine adjustment nut 17 for fine adjustment of the height of the stand, the circumference of the height fine adjustment nut 17 is provided with fine adjustment scales 18, and the top is provided with small exhaust holes 20, so that air in the stand outer tube 15 can be discharged slowly.

Therefore, when the rocker arm seat 2 needs to be slightly adjusted in height, an operator can screw the height fine adjustment nut 17 above the upright post, because the height fine adjustment nut 17 is integrally connected with the upright post outer sleeve 15 and the rocker arm seat 2, the screw rod 19 on the height fine adjustment nut 17 can extend or shorten when rotating, one end of the screw rod 19 props against the upright post shaft core 14 and drives the upright post outer sleeve 15 and the rocker arm seat 2 to be adjusted in height up and down, and the purpose of fine adjustment in height is achieved.

Preferably, the indexing adjustment mechanism 4 comprises an indexing wheel 40 and an indexing wheel nut 41 which are installed at the rear end of the working handle 30, and the indexing wheel nut 41, the indexing wheel 40 and the handle rotating shaft 31 are fixed on the same axis and are the same rotating body, so that the rotating handle rotating shaft 31 or the rotating indexing wheel nut 41 can be mutually driven, and the rotating scale can be observed from the indexing wheel 40; the indexing wheel 40 is in a gear shape, the circumferential surface is provided with tooth grooves, and in addition, because one end of the indexing wheel control pressure rod 121 arranged on the working handle 30 is contacted with the tooth grooves of the indexing wheel 40, when the indexing wheel control pressure rod 121 presses the tooth grooves of the indexing wheel, the handle rotating shaft 31 cannot rotate, and the gem indexing surface can be ground; after finishing the grinding of one index surface, the index wheel control pressure lever 121 is separated from the index wheel 40, the handle rotating shaft 31 can rotate freely, and an operator can adjust the rotating shaft to the next required index surface; the steps are repeated until a circumferential indexing surface is finished.

Preferably, the transmission structure 8 includes a push screw rod 21, a slider 22, a rack 23 and a limit gear 24 installed in the rocker arm seat 2, two ends of the push screw rod 21 are respectively connected with the angle adjusting handwheel 7 and the slider 21, the slider 21 is fixedly connected with one end of the rack 23 through a pin shaft 25, the rack 23 and the limit gear 24 are installed in a mutually meshed manner, and the limit gear 24 is fixedly connected with the working handle 30 through a rotating shaft 25.

After the structure is adopted, an operator rotates the angle adjusting hand wheel to drive the push screw rod to rotate, and the push screw rod is in threaded connection with the slide block, so that the push screw rod drives the slide block to slide back and forth when rotating, and simultaneously drives the straight rack on the slide block to slide back and forth; because the racks are meshed and connected with the tooth grooves of the limiting gears on the working handle, all the racks drive the limiting gears and the working handle to rotate, and therefore the requirement of adjusting the angle of the working handle is met.

Preferably, the other end of the pushing screw 21 is connected with an angle digital display meter 26, the angle digital display meter 26 is installed on the rear seat of the rocker arm seat 2 and is located between the angle adjusting hand wheel 7 and the rocker arm seat 2, so that when the pushing screw 21 rotates, the upper number of the angle digital display meter 26 changes along with the rotation, and the vertical included angle between the working handle 30 and the grinding table surface is displayed on the digital display meter.

Preferably, the bottom end of the pillar core 14 is provided with a lock nut 140 that is fittingly installed in an installation groove of the base, and the upper portion of the lock nut 140 is provided with a groove 14a that slides in the installation groove.

Preferably, the base 100 is further provided with a control button 103, a desk lamp 104 and a mounting groove 105 for mounting the upright, and the bottom of the mounting groove 105 is further provided with a gasket; the control button 103 comprises a speed regulation switch 1031, a power switch 1032 and a forward and reverse rotation switch 1033, and a handle 700 is further arranged on the side edge of the machine base 100.

The specific working steps are as follows:

A. firstly, fixing a workpiece material to be ground in a handle rotating shaft at the front end of a working handle 213 through a special adhesive rod;

B. the handle rotating shaft, the index wheel at the rear end and the index wheel nut are fixed on the same axis to form the same rotating body, and the handle rotating shaft is rotated when different index surfaces of the jewel are ground; the indexing wheel is in a gear shape, the circumferential surface is provided with tooth grooves, in addition, a horizontal angle fine adjustment hand wheel and an indexing wheel control pressure rod are arranged on the working handle, when the indexing wheel control pressure rod tightly presses the tooth grooves of the indexing wheel, a handle rotating shaft cannot rotate, and when the indexing wheel control pressure rod is separated from the indexing wheel, the handle rotating shaft can freely rotate;

C. the locking screw of the rocker arm seat is loosened, the rocker arm seat can move up and down on the lifting upright post, an operator can adjust the rocker arm to a proper height, and then the locking screw is screwed down to fix the rocker arm seat;

D. the angle adjusting hand wheel is rotated to adjust the angle between the working handle and the grinding disc in the horizontal direction, and the angle is directly displayed through the angle digital display meter and can be accurate to 0.1 degree;

E. in the process of grinding the workpiece, an operator swings the working handle back and forth left and right to achieve the purpose of grinding the facet of the workpiece, and in the process of grinding, the grinding depth can be accurately observed and controlled through the grinding depth indicating gauge;

F. after finishing the grinding of one facet, loosening the index wheel control pressure lever, rotating the handle rotating shaft 214 to drive the index wheel to rotate to another angle, and after locking the index wheel control pressure lever, grinding the next facet at the fixed angle;

G. and F, repeating the step F until uniform facets H are ground on the same circumferential surface of the workpiece, and repeating the step C to the step F to grind the facets on other layers of the workpiece.

Because precious stone facet grinds machine and has higher required precision to the grinding angle, the grinding depth of work piece, institute the utility model discloses a work handle can realize altitude mixture control and fine setting to and angular adjustment realizes the precious stone facet dividing surface and grinds the adjustment, and the control grinding depth, can also realize the fine setting of handle horizontal angle simultaneously.

Compared with the prior art, the method has the following advantages:

(a) the high-precision manipulator in the utility model is designed in an integrated manner, the manipulator in the prior art is designed in a split manner, the lifting upright post and the working handle are separated, and the working handle is only placed on the lifting upright post when in use, so that no fixed point exists, and the matching precision is lower; the high-precision manipulator integrated type of the utility model has higher and more precise matching precision,

(b) the angle adjusting mode and the angle displaying mode of the working handle and the workpiece grinding disc in the utility model have the advantages that an operator rotates an angle adjusting hand wheel, drives the working handle to adjust the grinding angle through a mechanical transmission part positioned in a rocker arm seat, the grinding angle is directly displayed on an angle digital display meter, and the working handle can be stably fixed at a certain specified angle position;

the existing machine type can only judge the angle by observing the relative position of a pointer on the working handle and the scale mark of the dial on the rocker arm seat by naked eyes of an operator, and the working handle cannot be fixed on a certain specified angle; the angle reading is easy to generate reading errors due to the observation position of an operator;

the utility model has the advantages of more stable, more intuitive and more accurate grinding angle compared with the prior art because the grinding angle is adjusted by mechanical transmission, because in the grinding process of the workpiece, an operator needs to check the facet grinding degree of the workpiece, needs to repeatedly move the working handle out of the original working position for a plurality of times, and moves back to the original working position for continuous grinding after the check is finished, the utility model can greatly reduce the problem that the grinding angle is not accurate enough due to artificial factors in the process,

(c) the utility model discloses one set of grinding degree of depth dial gauge device has been increased than current technique, it connects work handle 11 and grinding degree of depth dial gauge through the mechanical transmission component in the rocking arm seat 02, on exporting the dial gauge with work handle up-and-down motion distance, the operator can be directly read out the grinding degree of depth of work piece at the dial gauge, thereby control grinding allowance, minimum can be accurate to 0.01mm, all process same degree of depth value when making every facet of processing, every facet size is even, reach the processing requirement of precision grinding.

The existing equipment has no such device, an operator can only grind according to personal feeling, the grinding depths of different forces cannot be consistent, and the facet depths are inconsistent, so that the size uniformity of each facet cannot be realized, and the requirement of fine grinding cannot be met.

(d) The utility model provides a horizontal angle micromatic setting of work handle is the fine adjustment at horizontal inclination between work handle and the work piece abrasive disc, because the cooperation precision between the manipulator of machinery itself and the work piece abrasive disc, or the fit clearance that arouses in long-time use course of working, need finely tune the work handle in order to ensure the grinding precision. The existing equipment is not provided with the fine adjustment device, and the existing equipment needs to be adjusted in a complex and tedious mode or a mode of replacing hardware.

The utility model discloses a rocking arm seat and rocking arm seat locking screw mutually support and install on the stand, so when the height-adjusting is great, can loosen rocking arm seat locking screw, reciprocate the rocking arm seat to suitable height, then lock rocking arm seat locking screw and fix the rocking arm seat on the stand, can realize the height of thick strip adjustment handle structure; meanwhile, the height fine-tuning nut arranged at the top of the upright post can be rotated to drive the upright post outer sleeve to adjust the height up and down, so that the rocker arm seat is driven to finely adjust the height up and down. In addition, the utility model rotates the angle adjusting hand wheel to drive the pushing screw rod to rotate, when the pushing screw rod rotates, the sliding block is driven to slide back and forth, and simultaneously the straight rack on the sliding block is driven to slide back and forth, so as to adjust the vertical included angle between the handle structure and the grinding table surface; meanwhile, the indexing wheel in the indexing adjustment structure can be rotated to drive the handle rotating shaft to rotate, so that a certain number of facets can be ground on the same circumferential surface of the gem, and the indexing surfaces are uniform.

The above is a preferred embodiment of the present invention, and certainly not to limit the scope of the present invention, it should be noted that, for those skilled in the art, modifications or equivalent substitutions of the technical solutions of the present invention without creative efforts may not depart from the protection scope of the technical solutions of the present invention.

Claims

1. A high-precision gem facet grinding machine is characterized by comprising a machine base, a high-precision mechanical arm arranged on the machine base, a grinding mechanism and a dripping water cooling device, wherein the grinding mechanism is arranged on the machine base and is positioned below a working handle of the high-precision mechanical arm; the dropping water cooling device is arranged on the machine base, and a dropping water pipe orifice of the dropping water cooling device is positioned right above the polishing mechanism; the high-precision manipulator comprises a vertical column with adjustable height, a rocker arm seat, a handle structure for connecting a sticky rod, an indexing adjusting mechanism for adjusting polishing indexing and an angle adjusting mechanism for adjusting a vertical included angle between the handle structure and a grinding table top; the rocker arm seat is locked on the upright post through a locking screw of the rocker arm seat, the handle structure is arranged on the rocker arm seat, and the indexing adjusting mechanism is arranged on the handle structure; the angle adjusting mechanism is arranged in the rocker arm seat.

2. A high precision gemstone facet grinding machine according to claim 1, characterized in that the grinding mechanism comprises a water-stop basin, a grinding disc for grinding the gemstone, mounted in the water-stop basin and connected by a spindle to a speed-regulating motor mounted in the machine base, and a grinding clamp for locking the grinding disc on the spindle.

3. A high precision gemstone facet grinding machine according to claim 2, wherein a power supply and a motor controller for driving a speed regulating motor are further mounted in the machine base, said motor controller being connected to the power supply and the speed regulating motor, respectively.

4. A high precision gemstone facet grinding machine according to claim 1, further comprising a grinding mechanism for controlling the grinding depth of the gemstone, the grinding mechanism being mounted on one side of the rocker arm mount; the grinding mechanism comprises a grinding depth indicating meter and a grinding depth limiting screw, the grinding depth indicating meter is connected with the handle structure through a connecting element arranged in the rocker arm seat, the grinding depth of the handle structure is transmitted to the grinding depth indicating meter to be displayed, and the grinding depth limiting screw is arranged right below the grinding depth indicating meter.

5. A high precision gemstone facet grinding machine according to claim 1, characterized in that the handle structure is further provided with a handle level fine adjustment mechanism for fine adjustment of the working handle level angle in the handle structure; the handle horizontal fine adjustment mechanism comprises a horizontal angle fine adjustment hand wheel and a dividing wheel control pressure rod, and the dividing wheel control pressure rod is arranged on the handle structure and used for locking the dividing adjustment mechanism; the horizontal angle fine adjustment hand wheel is connected with the indexing wheel control pressing rod through the optical axis and drives the indexing wheel control pressing rod fixed on the optical axis to move left and right.

6. The high precision gemstone facet grinding machine according to claim 1, wherein the post includes a post core and a post outer sleeve, the post outer sleeve being fitted over the post core; and a height fine adjustment nut for fine adjusting the height of the stand column is further installed at the top of the stand column outer sleeve.

7. A high precision gemstone facet grinding machine according to claim 1, wherein the handle structure comprises a working handle and a handle rotation shaft, the handle rotation shaft is inserted into the working handle through a rotation shaft.

8. A high precision gemstone facet grinder as claimed in claim 7, wherein the indexing adjustment mechanism comprises an indexing wheel mounted on the rear end of the working handle and an indexing wheel nut fixed on the same axis as the indexing wheel and the handle rotation axis and being a common body of rotation.

9. A high precision gemstone facet grinding machine according to claim 1, characterised in that the angle adjustment mechanism comprises an angle adjustment handwheel and a transmission structure, the transmission structure is mounted in the rocker arm base, and the angle adjustment handwheel drives the transmission structure to transmit, the transmission structure drives the handle structure to adjust the angle; the angle adjusting hand wheel is arranged on the side surface of the rocker arm seat; the transmission structure comprises a push screw rod, a sliding block, a rack and a limiting gear, wherein the push screw rod, the sliding block, the rack and the limiting gear are installed in a rocker arm seat, two ends of the push screw rod are respectively connected with an angle adjusting hand wheel and the sliding block, the sliding block is fixedly connected with one end of the rack through a pin shaft, the rack and the limiting gear are installed in a mutually meshed mode, and the limiting gear is fixedly connected with a handle structure through a rotating shaft.

10. A high precision gemstone facet grinding machine according to claim 1, characterized in that the machine base is further provided with a control button, a desk lamp and a mounting groove for mounting a post, and a sealing pad is further provided at the bottom of the mounting groove.