CN210060620U - Automatic stone polishing machine - Google Patents

Abstract

The utility model discloses an automatic burnishing machine of stone material, including the lathe that has the numerical control case, install the gyration respectively on the lathe and hold the mechanism, translation stop gear, polishing mechanism and lift actuating mechanism, treat that the stone material work piece of polishing is placed on the gyration holds in the palm and holds the mechanism, hold in the palm by this gyration and drive the synchronous gyration of work piece, translation stop gear installs in the gyration and holds the below of holding the mechanism, and hold in the palm the mechanism with the gyration and cooperate and be formed with a plurality of processing stations, polishing mechanism installs in the top that the mechanism was held in the gyration, and be connected with lift actuating mechanism, can adjust the high whole of a plurality of aircraft noses of polishing through lift actuating mechanism, the gyration is held in the palm the mechanism, translation stop gear, polishing mechanism and lift actuating mechanism's motion is controlled by the numerical control case. The utility model has the advantages of degree of automation is high, work efficiency is high, the security performance is high, low in labor strength, be applicable to industrial batch production etc.

Description

A stone automatic polishing machine

technical field

The utility model relates to the technical field of stone processing, in particular to an automatic polishing machine for stone.

Background technique

Stone has now become a widely used decorative material. With the improvement of people's living standards, new changes in aesthetics are also taking place, and the requirements for the appearance of stone are also increased. Most of the existing stone polishing machines use a motor to drive the workpiece to rotate by blessing both ends of the stone, and then use a manual hand-held water mill or manual sandpaper to polish the outer peripheral surface, from coarse to fine, to make the outer peripheral surface shiny and bright, but this This method results in high labor intensity for operators, low work efficiency, high risk factor, and unstable grinding quality, which depends on the operator's proficiency level. The polishing quality of the stone surface is unstable, which is not conducive to industrial mass production.

Utility model content

The purpose of the utility model is to overcome the deficiencies of the prior art, and to provide an automatic stone polishing machine with high degree of automation, high work efficiency, high safety performance, low labor intensity and stable quality, which is suitable for industrial mass production.

In order to achieve the above purpose, the technical scheme provided by the present utility model is as follows: an automatic polishing machine for stone materials, including a machine tool with a numerical control control box, and a rotary support mechanism, a translation limit mechanism, and a polishing mechanism are respectively installed on the machine tool. and lift drive mechanism, the stone raw material workpiece to be polished is placed on the rotary holding mechanism, and the rotary holding mechanism drives the workpiece to rotate synchronously. The mechanism cooperates to form a plurality of processing stations. The workpiece is placed in the processing station, and the corresponding processing station limits it, and the translation limit mechanism translates the workpiece that has completed the processing station process to the position. In the next processing station, the polishing mechanism is installed above the rotary holding mechanism and is connected to the lifting drive mechanism. The polishing mechanism includes a row of grinding heads, and the number of the grinding heads is the same as the number of the processing stations. The number is the same, that is, one grinding head corresponds to one processing station, and the polishing accuracy of multiple grinding heads is progressive from low to high. Carry out automatic grinding and polishing from coarse to fine, and the height of multiple grinding heads can be adjusted as a whole through the lifting and driving mechanism, so that the distance between the grinding head and the rotary holding mechanism can be adapted to the diameter of the workpiece. The movements of the holding mechanism, the translation limit mechanism, the polishing mechanism and the lifting and lowering drive mechanism are all controlled by the numerical control control box.

Further, the rotary holding mechanism includes a roller, a movable support assembly, a handle adjustment assembly, a sprocket chain assembly and a first motor, and the roller has two and is horizontally arranged on the machine tool side by side through two sets of movable support assemblies at both ends. The workpiece is placed in the processing station between the two rollers, and the two rollers are located below the grinding head to ensure that the grinding head is aligned with the workpiece in the corresponding processing station. The support assembly adjusts the distance between the two rollers through the handle adjustment assembly to adapt to the diameters of different batches of workpieces. The two rollers are connected to the first motor through the sprocket chain assembly, and the first motor drives the two rollers It rotates synchronously, and then drives the workpiece placed above the two rollers to rotate synchronously, so as to achieve uniform grinding of the outer peripheral surface of the workpiece.

Further, the movable support assembly includes a movable support seat, a sliding block and a bidirectional screw rod. There are two movable support seats and are respectively connected with the ends of the two rollers on the same side through a bearing. The sliding block has two The two sides of the two-way screw are respectively sleeved, and the tops of the two sliders are fixedly connected with the bottoms of the two movable support bases, and their bottoms are slidably installed on the slide rails of the machine tool. The two-way screw It is connected with the handle adjustment assembly, and the handle of the handle adjustment assembly is rotated so that the two sliding blocks can drive the two movable support bases to move toward or in the opposite direction along the slide rail, so as to realize the adjustment of the distance between the two rollers; the handle adjustment assembly is installed on the On the machine tool and located behind the two rollers, it includes a first connecting rod, a second connecting rod and a handle. There are two first connecting rods and are respectively connected with two bidirectional screw rods. The second connecting rod The length of the rod is the same as that of the two rollers and parallel to the two rollers, and its two ends are respectively connected vertically with the two first connecting rods through bevel gears, and one end of the second connecting rods extends outward and is provided with a handle ; The sprocket chain assembly includes two small driven sprockets, a large driving sprocket, an adjusting sprocket and a chain, the two small driven sprockets are respectively arranged at the ends of the two rollers, and the adjusting The sprocket is mounted on the machine tool through a bearing and is located below the two driven small sprockets. The active large sprocket is connected to the first motor and is located below the adjusting sprocket. The two driven small sprockets, the adjusting chain The wheel and the large driving sprocket are connected by chain transmission, and the large driving sprocket is driven by the first motor to realize the synchronous rotation of the two rollers, wherein the two small driven sprockets and the large driving sprocket are engaged with the inner side of the chain , the adjusting sprocket is engaged with the outer side of the chain, so that the chain of fixed length can adapt to the fine adjustment of the distance between the two rollers.

Further, the polishing mechanism includes a grinding head, a head mounting plate and a second motor, the grinding heads are multiple and are mounted on the head mounting plate, and the head mounting plate is fixedly connected to the lifting drive mechanism, The plurality of grinding heads are connected in two phases by belts, and the second motor drives the plurality of grinding heads to rotate synchronously, and the polishing accuracy of each grinding head is adjusted through the independent pneumatic part of the plurality of grinding heads.

Further, the machine tool is also provided with a reciprocating drive mechanism, which is used to ensure that each grinding head of the polishing mechanism reciprocates left and right on its corresponding processing station. The reciprocating drive mechanism includes a reciprocating drive motor and a rack. The rack is fixedly connected with the head mounting plate of the polishing mechanism, and meshes with the gear on the output shaft of the reciprocating drive motor.

Further, a water outlet hose is provided next to each grinding head of the polishing mechanism, which is used to prevent dust pollution generated during grinding and polishing and to cool the workpiece.

Further, the translation limiting mechanism includes a longitudinal driving column, a transverse driving cylinder, a transverse guide rail, a transverse rod and a limiting rod. There are two longitudinal driving columns and are installed on the machine tool, and the transverse guide rails are transversely arranged on two On the vertical drive column, the transverse rod is slidably arranged on the transverse guide rail, and a plurality of limit rods are arranged on the transverse rod, and a processing station is formed between the two limit rods, which is used for placing on the rotary holding mechanism. The workpiece between the two rollers is limited and blocked to ensure that a grinding machine head is aimed at the workpiece in a processing station for grinding and polishing. When working, the horizontal translation control of the horizontal rod is realized by the horizontal driving cylinder, which is about to be completed. The workpiece in the processing station process is translated to the next processing station, and then the vertical drive column realizes the lifting control of the cross bar, that is, the reset of the translation limit mechanism is completed.

Further, the lift drive mechanism includes a lift drive motor, a screw rod, a transmission shaft, and a lift slider slide assembly. There are two screw rods and are arranged on the two uprights of the machine tool in parallel and symmetrically. The two screw rods They are respectively connected vertically with the two ends of the transmission shaft. The transmission shaft is connected with the lift drive motor. The lift drive motor drives the drive shaft to drive the two screw rods to rotate synchronously. Each screw rod is slidably sleeved with a lift slider slide plate. The two lifting slider slide assemblies can slide along the guide rails arranged on the two uprights of the machine tool respectively, and the two lifting slider slide assemblies are respectively connected to the two ends of the head mounting plate of the polishing mechanism, and the lifting slider The sliding plate assembly drives the polishing mechanism to move upward or downward as a whole along the guide rail, so that the distance between the polishing mechanism and the rotary holding mechanism can be adapted to the diameter of the workpiece. , the lifting sliding block is sleeved on the screw rod, and the lifting sliding block is slidably installed on the guide rail.

Further, the machine tool is provided with a plurality of baffles for preventing dust pollution and splashing of the water outlet hose, wherein the baffle facing the operator is a movable baffle that is installed by hinges and can be turned upward.

Further, a power supply box for providing electric power is installed on the machine tool.

Compared with the prior art, the utility model has the following advantages and beneficial effects:

The polishing machine of the utility model can automatically polish the outer peripheral surface of the stone, set the number of grinding heads according to the needs of polishing precision, and at the same time control the polishing requirements of rough grinding or fine grinding by independently adjusting the grinding weight of each grinding head; Through the lifting drive mechanism and the adjustable-spacing rotary holding mechanism, it can adapt to different diameters of stone materials; through the translation limit mechanism, the workpiece can be automatically shifted to the processing station, and the workpiece can be automatically polished from coarse to fine.

Description of drawings

FIG. 1 is a perspective view of the utility model.

FIG. 2 is a perspective view 1 of the utility model without a baffle plate installed.

FIG. 3 is a second perspective view of the utility model without a baffle plate installed.

4 is a schematic structural diagram of the reciprocating drive mechanism of the present invention.

FIG. 5 is a schematic structural diagram of the translation limiting mechanism of the present invention.

FIG. 6 is a schematic structural diagram of the lift drive mechanism of the present invention.

Detailed ways

The present utility model will be further described below in conjunction with specific embodiments.

As shown in FIGS. 1 to 6 , the stone automatic polishing machine provided in this embodiment includes a machine tool 1 with a numerical control control box 5 , and a rotary holding mechanism, a translation limit mechanism, and a polishing mechanism are installed on the machine tool 1 and lift drive mechanism, the stone material workpiece to be polished (in this embodiment, the cylindrical stone material workpiece is taken as an example) is placed on the rotary holding mechanism, and the rotary holding mechanism drives the workpiece to rotate synchronously, and the translation limit mechanism is installed Below the rotary holding mechanism and cooperating with the rotary holding mechanism, a plurality of processing stations are formed. The workpiece is placed in the processing station, and is limited by the corresponding processing station, and is translated by the workpiece. The limit mechanism translates the workpiece that has completed the process of the processing station to the next processing station. The polishing mechanism is installed above the rotary holding mechanism and is connected with the lift drive mechanism, including a row of grinding heads 21. The number of the grinding heads 21 is consistent with the number of processing stations, that is, one grinding head 21 corresponds to one processing station, and the distance between the two grinding heads 21 is maintained. The polishing accuracy of the plurality of grinding heads 21 Progressive from low to high, so as to realize that the plurality of grinding heads 21 sequentially perform automatic and orderly grinding and polishing from coarse to fine for the workpiece moved to the bottom by the translation limit mechanism. The height of the head is adjusted up and down, so that the distance between the grinding head and the rotary holding mechanism can be adapted to the diameter of the workpiece. The movements of the rotary holding mechanism, translation limit mechanism, polishing mechanism, and lifting drive mechanism are all controlled by numerical control. The box is controlled, and power is supplied by a power supply box (not shown in the figure) installed on the machine tool 1 .

The rotary holding mechanism includes a roller 14, a movable support assembly, a handle adjustment assembly, a sprocket chain assembly and a first motor 15. The roller 14 has two and is arranged horizontally and side by side through two sets of movable support assemblies at both ends. On the machine tool 1, the workpiece is placed in the processing station between the two rollers 14, and the two rollers 14 are located below the grinding head 21 to ensure that the grinding head 21 is aligned with the corresponding processing station. The movable support assembly adjusts the distance between the two rollers 14 through the handle adjustment assembly to adapt to the diameters of different batches of workpieces, and the two rollers 14 are connected with the first motor 15 through the sprocket chain assembly, The first motor 15 drives the two rollers 14 to rotate synchronously, and then drives the workpieces placed above the two rollers 14 to rotate synchronously, so as to achieve uniform grinding of the outer peripheral surface of the workpiece; wherein, the movable support assembly includes a movable support seat 111, There are two sliding blocks 112 and two-way screw rods 113, and the movable support bases 111 are respectively connected with the ends of the two rollers 14 on the same side through bearings. Both sides of the screw 113, and the tops of the two sliding blocks 112 are respectively fixedly connected with the bottoms of the two movable support bases 111, and their bottoms are slidably installed on the slide rails 114 of the machine tool 1. The handle adjustment assembly is connected, and the handle 123 of the handle adjustment assembly is rotated so that the two sliders 112 can drive the two movable support bases 111 to move toward or in opposite directions along the slide rails 114, so as to adjust the distance between the two rollers 14; the handle The adjustment assembly is installed on the machine tool 1 and is located behind the two rollers 14, and includes a first connecting rod 121, a second connecting rod 122 and a handle 123. There are two first connecting rods 121 and two bidirectional rods respectively. The screw 113 is connected, the second connecting rod 122 is the same length as the two rollers 14 and parallel to the two rollers 14, and its two ends are respectively connected vertically with the two first connecting rods 121 through the bevel gear 124 , one end of the second connecting rod 122 extends outward and is provided with a handle 123; the sprocket chain assembly includes two small driven sprockets 131, a large driving sprocket 133, an adjusting sprocket 132, and a chain 134, so The two driven small sprockets 131 are respectively arranged at the ends of the two rollers 14, the adjusting sprocket 132 is mounted on the machine tool 1 through bearings and is located below the two driven small sprockets 131, the driving The large sprocket 133 is connected to the first motor 15 and is located below the adjusting sprocket 132 . The two driven small sprockets 131 , the adjusting sprocket 132 and the driving large sprocket 133 are connected by a chain 134 , and are driven by the first motor 15 . The large driving sprocket 133 is driven to realize the synchronous rotation of the two rollers 14 , wherein the two small driven sprockets 131 and the large driving sprocket 133 mesh with the inner side of the chain 134 , and the adjusting sprocket 132 and the outer side of the chain 134 are engaged. The faces are engaged with each other, so that the chain 134 with a fixed length can adapt to the fine adjustment of the distance between the two rollers 14 .

The polishing mechanism includes a grinding head 21, a head mounting plate 22 and a second motor 23. There are multiple grinding heads 21 (six in this embodiment) and are mounted on the head mounting plate in a row. 22, the machine head mounting plate 22 is fixedly connected with the lifting drive mechanism, the six grinding machine heads 21 are connected in two phases through a belt, and the six grinding machine heads 21 are driven by the second motor 23 to rotate synchronously, The independent pneumatic part on the machine head 21 realizes the adjustment of the polishing accuracy of each grinding machine head 21, and at the same time, a water outlet hose 24 is arranged beside each grinding machine head 21 to prevent dust pollution generated during grinding and polishing. The workpiece is cooled.

As shown in FIG. 5 , the translation limiting mechanism includes a longitudinal driving column 31, a transverse driving cylinder 32, a transverse guide rail (not shown in the figure), a transverse rod 34, and a limiting rod 35. The longitudinal driving column 31 has two and installed on the machine tool 1, the transverse guide rails (not shown in the figure) are horizontally arranged on the two longitudinal driving columns 31, and the transverse rods 34 are slidably arranged on the transverse guide rails (not shown in the figure). The cross bar 34 is provided with a plurality of limit rods 35, and a processing station is formed between the two limit rods 35, which is used to limit the workpiece placed between the two rollers 14 of the rotary holding mechanism. , to ensure that a grinding machine head 21 is aimed at a workpiece for grinding and polishing. During operation, the lateral translation control of the transverse rod 34 is realized by the transverse driving cylinder 32, and the workpiece that is about to complete the processing station is translated to the next processing station, and then By driving the vertical column 31 longitudinally, the lifting control of the cross bar 34 is realized, that is, the reset of the translation limiting mechanism is completed.

The exterior of the lift drive mechanism is packaged with a compressible casing, and its internal structure is shown in Figure 6, including a lift drive motor 41, a lead screw 42, a transmission shaft 43 and a lift slider slide assembly. The lead screw 42 has Two are arranged in parallel and symmetrically on the two uprights of the machine tool 1, the two screw rods 42 are respectively vertically connected with the two ends of the transmission shaft 43, the transmission shaft 43 is connected with the lift drive motor 41, and is driven by the lift The motor 41 drives the transmission shaft 43 and then drives the two screw rods 42 to rotate synchronously. Each screw rod 42 is slidably sleeved with a lifting slider slide assembly. The guide rail 46 slides, and the two lifting slider slide assemblies are respectively connected to both ends of the head mounting plate 22 of the polishing mechanism. The distance between the polishing mechanism and the rotary holding mechanism is adapted to the diameter of the workpiece. The lifting slider slide assembly is composed of a lifting slider 44 and a lifting slider 45 connected. The lifting slider 44 is sleeved on the screw rod 42, so The lift slide 45 is slidably mounted on the guide rail 46 .

As shown in FIG. 4 , the machine tool 1 is also provided with a reciprocating driving mechanism, which is used to ensure that each grinding head 21 of the polishing mechanism performs a left-right reciprocating motion on its corresponding processing station. The reciprocating driving mechanism includes a reciprocating driving mechanism. The drive motor 61 and the rack 62 are fixedly connected with the head mounting plate 22 of the polishing mechanism, and mesh with the gear 63 on the output shaft of the reciprocating drive motor 61 .

A plurality of baffles 7 are also installed around the machine tool 1 to prevent dust pollution and water splashing from the water outlet hose. The baffle facing the operator is a movable baffle 71 that is installed by hinges and can be turned upwards. Personnel only need to open the movable baffle 71 to put in or take out the workpiece.

The above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the scope of implementation of the present invention. Therefore, any changes made according to the shape and principle of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (10)

1. A stone automatic polishing machine, comprising a machine tool with a numerical control control box, is characterized in that: a rotary support mechanism, a translation limit mechanism, a polishing mechanism and a lift drive mechanism are respectively installed on the machine tool, and the stone material to be polished is The raw workpiece is placed on the rotary holding mechanism, and the rotary holding mechanism drives the workpiece to rotate synchronously. The workpiece is placed in the processing station, and the processing station limits it, and the translation limit mechanism translates the workpiece that has completed the processing station process to the next processing station. The polishing mechanism It is installed above the rotary holding mechanism and is connected to the lifting and driving mechanism. The polishing mechanism includes a row of grinding heads, and the number of the grinding heads is consistent with the number of processing stations, that is, one grinding head corresponds to In a processing station, the polishing accuracy of a plurality of grinding heads progresses in sequence from low to high, and the plurality of grinding heads sequentially perform automatic grinding and polishing from coarse to fine for the workpiece moved by the translation limit mechanism to the bottom. The height of multiple grinding heads can be adjusted as a whole through the lifting and lowering drive mechanism, so that the distance between the grinding head and the rotary holding mechanism can be adapted to the diameter of the workpiece. The rotary holding mechanism, translation limit mechanism, polishing The movement of the mechanism and the lifting drive mechanism are controlled by the numerical control control box. 2. An automatic stone polishing machine according to claim 1, characterized in that: the rotary holding mechanism comprises a roller, a movable support assembly, a handle adjustment assembly, a sprocket chain assembly and a first motor, and the roller There are two shafts and are horizontally arranged on the machine tool side by side through two sets of movable support assemblies at both ends, the workpiece is placed in the processing station between the two rollers, and the two rollers are located below the grinding head, Ensure that the grinding head is aligned with the workpiece in the corresponding processing station. The movable support component adjusts the distance between the two rollers through the handle adjustment component to adapt to the diameter of different batches of workpieces. The two rollers pass through the chain. The wheel chain assembly is connected with the first motor, and the first motor drives the two rollers to rotate synchronously, and then drives the workpiece placed above the two rollers to rotate synchronously, so as to achieve uniform grinding of the outer peripheral surface of the workpiece. 3. The stone automatic polishing machine according to claim 2, wherein the movable support assembly comprises a movable support seat, a sliding block and a bidirectional screw rod, and the movable support seat has two and is connected to the movable support seat through a bearing respectively. The ends of the two rollers are connected on the same side. There are two sliders, which are respectively sleeved on both sides of the two-way screw, and the tops of the two sliders are respectively fixedly connected with the bottoms of the two movable support seats. , their bottoms are slidably installed on the slide rail of the machine tool, the two-way screw rod is connected with the handle adjustment assembly, and the handle of the handle adjustment assembly is rotated so that the two sliders can drive the two movable support bases along the slide rail to face or reverse Move to realize the spacing adjustment of the two rollers; the handle adjustment assembly is installed on the machine tool and is located behind the two rollers, including a first connecting rod, a second connecting rod and a handle, and the first connecting rod has two The length of the second connecting rod is the same as that of the two rollers and parallel to the two rollers, and the two ends of the second connecting rod are connected to the two first connecting rods through bevel gears respectively. Vertically connected, one end of the second connecting rod extends outward and is provided with a handle; the sprocket chain assembly includes two driven small sprockets, a large active sprocket, an adjusting sprocket and a chain, the two driven The small moving sprockets are respectively arranged at the ends of the two rollers, the adjusting sprockets are mounted on the machine tool through bearings and are located below the two driven small sprockets, and the large driving sprockets are connected with the first motor And located below the adjusting sprocket, the two driven small sprockets, the adjusting sprocket and the active large sprocket are connected by chain transmission, and the first motor drives the active large sprocket to realize the synchronous rotation of the two rollers, among which, The two driven small sprockets and the active large sprocket are engaged with the inner side of the chain, and the adjusting sprocket is engaged with the outer side of the chain, so that the fixed-length chain can adapt to the fine adjustment of the distance between the two rollers. 4. An automatic stone polishing machine according to claim 1, characterized in that: the polishing mechanism comprises a grinding head, a head mounting plate and a second motor, and the grinding head has multiple and is installed on the machine On the head mounting plate, the machine head mounting plate is fixedly connected with the lifting drive mechanism, the plurality of grinding machine heads are connected in two phases by a belt, and the plurality of grinding machine heads are driven by the second motor to rotate synchronously, The independent pneumatic part on the upper realizes the adjustment of the polishing accuracy of each grinding head. 5. The automatic polishing machine for stone materials according to any one of claims 1 and 4, wherein the machine tool is also provided with a reciprocating drive mechanism for ensuring that each grinding head of the polishing mechanism is in its The corresponding processing station performs left and right reciprocating motion. The reciprocating drive mechanism includes a reciprocating drive motor and a rack. The rack is fixedly connected with the head mounting plate of the polishing mechanism, and is connected with the gear on the output shaft of the reciprocating drive motor. meshed. 6. The stone automatic polishing machine according to any one of claims 1 or 4, characterized in that: a water outlet hose is provided next to each polishing head of the polishing mechanism, which is used to prevent grinding and polishing. The resulting dust pollution and cooling of the workpiece. 7 . The automatic stone polishing machine according to claim 1 , wherein the translation limiting mechanism comprises a longitudinal driving column, a transverse driving cylinder, a transverse guide rail, a transverse rod and a limiting rod, and the longitudinal driving column There are two and are installed on the machine tool. The transverse guide rails are horizontally arranged on the two longitudinal driving columns, and the transverse rods are slidably arranged on the transverse guide rails. A processing station is formed between the rods, which is used to limit and block the workpiece placed between the two rollers of the rotary holding mechanism, so as to ensure that a grinding machine head is aimed at the workpiece in a processing station for grinding and polishing. When working, the horizontal translation control of the horizontal bar is realized by the horizontal driving cylinder, and the workpiece that is about to complete the process of the processing station is moved to the next processing station, and then the vertical driving column is used to realize the lifting control of the horizontal bar, that is, the translation limit mechanism is completed. reset. 8. The stone automatic polishing machine according to claim 1, wherein the lift drive mechanism comprises a lift drive motor, a screw rod, a transmission shaft and a lift slider slide assembly, and the screw rod has two parallel Parallel and symmetrically arranged on the two uprights of the machine tool, the two screw rods are respectively connected vertically with the two ends of the transmission shaft, the transmission shaft is connected with the lift drive motor, and the lift drive motor drives the drive shaft to drive the two The screw rods rotate synchronously, each screw rod is slidably sleeved with a lifting slider slide assembly, and the two lifting slider slider assemblies can slide along the guide rails provided on the two columns on the machine tool respectively, and the two lifting slider slider assemblies They are respectively connected to the two ends of the head mounting plate of the polishing mechanism. The lifting slider slide assembly drives the polishing mechanism to move upward or downward along the guide rail as a whole, so that the distance between the polishing mechanism and the rotary holding mechanism can be adapted to the diameter of the workpiece. , wherein, the lift slide plate assembly is composed of a lift slide block and a lift slide plate that are fixedly connected, the lift slide block is sleeved on the screw rod, and the lift slide plate is slidably installed on the guide rail. 9. The stone automatic polishing machine according to claim 1, characterized in that: the machine tool is provided with a plurality of baffles for preventing dust pollution and water splashes from the water outlet hose, wherein the one facing the operator The block flap is a hinged flap that can be flipped up. 10 . The automatic stone polishing machine according to claim 1 , wherein a power supply box for providing electricity is installed on the machine tool. 11 .

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