CN209364321U - A multi-station grinding and polishing machine - Google Patents

Abstract

The utility model relates to the technical field of automated processing equipment, and in particular to a multi-station grinding and polishing machine, including a machine platform, a movable seat movably arranged on the machine platform, a plurality of workpiece fixtures rotatably arranged on the movable seat, a lifting seat movably arranged on the machine platform, and a grinding mechanism arranged on the lifting seat, wherein the machine platform is provided with an X-axis driving mechanism, a Y-axis driving mechanism, and a Z-axis driving mechanism; the grinding mechanism includes a rectangular bracket rotatably arranged on the lifting seat and a plurality of grinding components rotatably arranged on the rectangular bracket, and each side of the rectangular bracket is provided with a plurality of grinding components at intervals, and the plurality of grinding components on the same side are used to process the workpieces carried by the plurality of workpiece fixtures at the same time. The utility model replaces the manually operated polishing processing method, effectively improves the production efficiency and the quality of the polishing processing; at the same time, it also avoids the problem of workers inhaling a large amount of dust when working.

Description

A multi-station grinding and polishing machine

technical field

The utility model relates to the technical field of automatic processing equipment, in particular to a multi-station grinding and polishing machine.

Background technique

The existing polishing process still has the problem of low efficiency. With the continuous development of science and technology, the polishing requirements for product workpieces are becoming more and more stringent. The traditional polishing method is generally to manually install the workpiece on the corresponding positioning fixture, and then perform the relevant polishing operation through the polishing device. As the polishing requirements for product workpieces are becoming more and more stringent, it is necessary to perform multiple polishing processes on the product, so that the semi-automatic production method combined with manual polishing devices cannot meet the existing processing needs. Moreover, a large amount of dust is likely to be generated during the polishing process, which makes it easy for humans to inhale excessive dust during operation, which will have a certain impact on human health, and will affect the working environment, which does not meet the requirements of green environmental protection.

Contents of the invention

The purpose of this utility model is to provide a multi-station grinding and polishing machine for the deficiencies of the prior art, which has high grinding and polishing effects, can replace manual work and realize multiple polishing processes, and can prevent workers from inhaling a large amount of oil due to manual operation. dust problem.

In order to achieve the above object, the utility model adopts the following technical solutions:

A multi-station grinding and polishing machine provided by the utility model comprises a machine table, a moving seat movably arranged on the machine table, a plurality of workpiece fixtures rotatably arranged on the moving seat, a lifting seat movably arranged on the machine table, and a lifting seat arranged on the lifting table. The grinding mechanism of the seat, the machine table is provided with an X-axis drive mechanism for driving the mobile seat to move along the X-axis direction of the machine table, a Y-axis drive mechanism for driving the mobile seat to move along the Y-axis direction of the machine table, A Z-axis driving mechanism used to drive the lifting base to lift up and down along the Z-axis direction of the machine; the grinding mechanism includes a rectangular bracket rotatably arranged on the lifting base and multiple groups of grinding components rotatably arranged on the rectangular bracket. Each side is provided with multiple sets of grinding assemblies at intervals, and the multiple grinding assemblies on the same side are used to simultaneously process workpieces carried by multiple workpiece fixtures.

Among them, the grinding mechanism also includes a first rotating shaft rotatably arranged on the lifting seat and a first driving member for driving the first rotating shaft to rotate, the first rotating shaft is connected to the rectangular bracket; the grinding assembly includes a rotating device The grinding disc rotating shaft on the rectangular support and the bearing seat sleeved on the grinding disc rotating shaft, the grinding disc rotating shaft runs through the rectangular support, and the end of the grinding disc rotating shaft located in the rectangular support is provided with a first bevel tooth; the rectangular support is provided with a second rotating shaft and The second drive member is used to drive the rotation of the second rotating shaft. The second rotating shaft is provided with a plurality of second bevel teeth at intervals, and the plurality of second bevel teeth mesh with the first bevel teeth of the plurality of grinding assemblies respectively.

Further, the second rotating shaft is also provided with a tapered fixing seat connected to the second bevel tooth, the second bevel tooth is provided with an inverted conical inner cavity, and the second bevel tooth is sleeved on the tapered fixing seat And it is connected with the tapered fixing seat via screws, and the outer tapered surface of the tapered fixing seat conflicts with the inner side of the inverted tapered inner cavity.

Wherein, the workpiece fixture includes a workpiece rotating shaft rotatably arranged on the moving seat, a rotating tooth connected to the workpiece rotating shaft, a rack meshed with the rotating tooth, and a third driving member for driving the rack to move. A clamping block for clamping external workpieces is arranged on the top.

Further, an air channel is provided inside the workpiece rotating shaft, and an air nozzle communicating with the air channel is provided at the bottom of the workpiece rotating shaft.

Wherein, the moving base is provided with a jetting device for jet polishing the workpiece clamped by the workpiece fixture, and the jetting device includes a liquid spray pipe arranged on one side of the workpiece fixture.

Further, there are multiple liquid spray pipes, and each liquid spray pipe corresponds to a workpiece fixture.

Wherein, the Y-axis driving mechanism includes a sliding block slidably arranged on the machine table, a first screw rod installed on the machine table to rotate along the Y-axis direction of the machine table, a first nut screwed to the first screw rod, and The fourth driving member is used to drive the rotation of the first screw rod, the first nut is connected with the sliding block, and the moving seat is slidably arranged on the sliding block and is drivingly connected with the X-axis driving mechanism.

Further, the X-axis driving mechanism includes a second screw rod installed on the sliding block along the X-axis direction of the machine, a second nut screwed with the second screw rod, and a screw for driving the second screw rod to rotate. As for the fifth driving member, the second nut is connected with the moving seat.

Wherein, the Z-axis drive mechanism includes a fixed seat arranged on the machine table, a third screw rod installed on the fixed seat by rotating along the Z-axis direction of the machine table, a third nut screwed with the third screw rod, and a For the sixth driving member that drives the third screw to rotate, the lifting seat is slidably arranged on the fixed seat, and the third nut is connected to the lifting seat; the fixed seat is also provided with a counterweight, a connecting belt and a rotating wheel, The counterweight is slidably arranged on the fixed seat, the connecting belt is wound around the rotating wheel, one end of the connecting belt is connected with the counterweight, and the other end of the connecting belt is connected with the lifting seat.

The beneficial effects of the utility model:

The utility model provides a multi-station grinding and polishing machine, which realizes multiple polishing processes on the workpiece through a rotatable rectangular support, and under the cooperation of multiple groups of grinding components and multiple fixture workpieces, it replaces the It eliminates the manual polishing process, effectively improves the production efficiency and quality of polishing process; at the same time, it also avoids the problem of workers inhaling a large amount of dust during work.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of another angle of view of the utility model;

Fig. 3 is a sectional view of the utility model;

Fig. 4 is a schematic diagram of the enlarged structure at A in Fig. 3;

Fig. 5 is the sectional view of the rectangular support of the present utility model;

Fig. 6 is a sectional view of the workpiece fixture of the present utility model;

Fig. 7 is a sectional view of the fixing seat of the present utility model;

Fig. 8 is a structural schematic diagram of the circular driving mechanism of the present invention.

Explanation of reference signs

1-machine platform; 11-moving seat; 12-lifting seat; 13-X-axis driving mechanism; 131-second screw; 132-second nut; 133-fifth driving member; 14-Y-axis driving mechanism; 141 -sliding block; 142-the first screw rod; 143-the fourth driving member; 15-Z axis driving mechanism; 151-fixed seat; 152-the third screw rod; 153-the sixth driving member; 154-counterweight; 155-connecting belt; 156-rotating wheel; 2-workpiece fixture; 21-workpiece rotating shaft; 211-airway; 212-air nozzle; 22-rotating tooth; ; -Conical fixed seat; 326-Inverted conical cavity; 33-First rotating shaft; 34-First driving member; 41-Spray pipe; 42-Motion track block; ; 44-rotating block; 441-sliding groove.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the utility model will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the implementation modes are not limitations of the utility model. Below in conjunction with accompanying drawing, the utility model is described in detail.

As shown in Figures 1 to 8, a multi-station grinding and polishing machine provided by the utility model includes a machine platform 1, a moving seat 11 movably arranged on the machine platform 1, and a plurality of workpiece fixtures rotatably arranged on the moving seat 11 2. The lifting seat 12 and the grinding mechanism 3 provided on the lifting seat 12 are movable, and the machine table 1 is provided with an X-axis driving mechanism for driving the moving seat 11 to move along the X-axis direction of the machine table 1 13. The Y-axis driving mechanism 14 for driving the moving base 11 to move along the Y-axis direction of the machine 1, and the Z-axis driving mechanism 15 for driving the lifting base 12 to move up and down along the Z-axis direction of the machine 1; The grinding mechanism 3 includes a rectangular support 31 which is rotatably arranged on the lifting base 12 and a plurality of groups of grinding assemblies 32 which are rotatably arranged on the rectangular support 31. Each side of the rectangular support 31 is provided with a plurality of groups of grinding assemblies 32 at intervals. Multiple grinding assemblies 32 are used to process workpieces carried by multiple workpiece holders 2 at the same time.

In practical applications, the workpiece to be processed is clamped by the workpiece fixture 2, the Z-axis drive mechanism 15 drives the lifting seat 12 to descend, and the descent of the lifting seat 12 drives the rectangular support 31 close to the workpiece fixture 2, so that the grinding on the rectangular support 31 The component 32 can be in conflict with the workpiece clamped by the workpiece fixture 2 to polish the workpiece. The X-axis driving mechanism 13 and the Y-axis driving mechanism 14 can drive the moving seat 11 to move on the plane of the machine table 1, and then drive the workpiece fixture 2 Move, so that each position of the workpiece can be processed. The grinding assembly 32 on each side of the rectangular support 31 is used to install the grinding discs used in different polishing processes. When switching the polishing process, it is only necessary to turn the rectangular support 31 so that the grinding disc on the other side of the rectangular support 31 can be in conflict with the workpiece , for another polishing process. The design of multiple groups of grinding assemblies 32 and multiple workpiece holders 2 can enable the utility model to process multiple workpieces simultaneously, thereby improving the working efficiency of the utility model. The utility model uses the rotatable rectangular bracket 31 to realize multiple polishing processes on the workpiece. Under the cooperation of multiple groups of grinding components 32 and multiple fixture workpieces, it replaces the manual polishing process and effectively improves Polishing production efficiency and polishing quality; at the same time, it also avoids the problem of workers inhaling a large amount of dust during work.

Specifically, the grinding assemblies 32 on the four sides of the rectangular support 31 can be respectively equipped with coarse grinding discs, fine grinding discs, fine grinding discs and other types of grinding discs.

In this technical solution, referring to Fig. 1 to Fig. 5, the grinding mechanism 3 also includes a first rotating shaft 33 rotatably arranged on the lifting base 12 and a first driving member 34 for driving the first rotating shaft 33 to rotate. A rotating shaft 33 is connected with the rectangular support 31; the grinding assembly 32 includes a grinding disc rotating shaft 321 which is rotatably arranged on the rectangular supporting frame 31 and a bearing seat 322 sleeved on the grinding disc rotating shaft 321, the grinding disc rotating shaft 321 runs through the rectangular support 31, and the grinding disc rotating shaft 321 is located at One end in the rectangular support 31 is provided with a first bevel tooth 323; the second rotating shaft 311 and a second drive member 312 for driving the second rotating shaft 311 to rotate are arranged in the rectangular supporting frame 31, and the second rotating shaft 311 A plurality of second bevel teeth 324 are arranged at intervals on the upper surface, and the plurality of second bevel teeth 324 mesh with the first bevel teeth 323 of the plurality of grinding assemblies 32 respectively. Specifically, one end of the grinding disc rotating shaft 321 protruding from the rectangular support 31 is connected to the external grinding disc. Both the first driving member 34 and the second driving member 312 are driving motors.

In practical applications, the first driving member 34 drives the first rotating shaft 33 to rotate, and the rotation of the first rotating shaft 33 drives the rectangular support 31 to rotate, so as to realize the conversion between different polishing processes; when polishing multiple workpieces, the second The second drive member 312 drives the second rotating shaft 311 to rotate, and the rotation of the second rotating shaft 311 drives the rotation of a plurality of second bevel teeth 324 on the second rotating shaft 311, and the rotation of the plurality of second bevel teeth 324 drives the rectangular bracket A plurality of millstone rotating shafts 321 of 31 rotate, and then drive the millstones to rotate. The grinding disc rotating shafts 321 on the four sides of the rectangular support 31 are all arranged around the second bevel teeth 324, so that one second bevel tooth 324 can mesh with four first bevel teeth 323, so that one second bevel tooth 324 can drive four The millstone rotating shaft 321 rotates; the design of this structure is simple and compact, and the operation is stable and reliable. One motor can drive multiple millstone rotating shafts 321 to rotate at the same time, which greatly saves energy consumption and achieves the effect of energy saving and environmental protection.

As a preference, referring to FIG. 4 , the second rotating shaft 311 is also provided with a conical fixing seat 325 connected with the second bevel tooth 324, the second bevel tooth 324 is provided with an inverted conical cavity 326, the second bevel tooth 324 is provided with an inverted conical cavity 326, and The second bevel tooth 324 is sheathed on the tapered fixing seat 325 and connected to the tapered fixing seat 325 via screws. The outer tapered surface of the tapered fixing seat 325 conflicts with the inner side of the inverted tapered cavity 326 . When assembling the second bevel tooth 324, screws are used to connect the conical fixing seat 325 and the second bevel tooth 324 to each other, so that the outer conical surface of the conical fixing seat 325 and the conical surface of the inverted conical inner cavity 326 cooperate with each other. Furthermore, the second bevel gear 324 can be more stably fixed on the second rotating shaft 311, and in the cooperation between the inner cone and the outer cone, the second bevel gear 324 can be automatically centered under the action of the axial force, To ensure that the second bevel gear 324 has a higher coaxiality, thereby improving the working stability of the utility model.

In this technical solution, referring to FIG. 6 , the workpiece holder 2 includes a workpiece rotating shaft 21 rotatably arranged on the moving base 11, a rotating tooth 22 connected to the workpiece rotating shaft 21, a toothed rack 23 meshing with the rotating tooth 22, and a rack for driving The third driving member (not shown in the figure) that the rack 23 moves, and the top of the workpiece rotating shaft 21 is provided with a clamping block 24 for clamping an external workpiece. Specifically, the workpiece rotating shaft 21 is used to drive the external processing workpiece to rotate.

In practical application, the third driving member drives the rack 23 to move, and the movement of the rack 23 drives the rotating gear 22 to rotate, and the rotation of the rotating gear 22 drives the workpiece shaft 21 to rotate, and the rotation of the workpiece shaft 21 drives the clamping block 24 to rotate. The rotation of the clamping block 24 further drives the external workpiece to rotate; the rotation of the workpiece can make each side of the workpiece be polished, thereby improving the working flexibility of the utility model.

Preferably, referring to FIG. 6 , an air channel 211 is provided inside the workpiece rotating shaft 21 , and an air nozzle 212 communicating with the air channel 211 is provided at the bottom of the workpiece rotating shaft 21 . During work, the air nozzle 212 is connected with an external air pump, and the design of the air passage can be used to suck the external workpiece, and can also be used to absorb the dust generated by the workpiece during processing, thereby reducing the pollution to the external environment.

In this technical solution, referring to FIG. 1 , the moving base 11 is provided with a spraying device for jet polishing the workpiece clamped by the workpiece holder 2, and the spraying device includes a liquid spray pipe arranged on one side of the workpiece holder 2 41. Preferably, there are multiple liquid spray pipes 41 , and each liquid spray pipe 41 corresponds to one workpiece holder 2 . When the grinding assembly 32 performs liquid injection polishing on the workpiece, the injection device may perform liquid injection on the workpiece. Specifically, the liquid spray pipe 41 directs the liquid to the workpiece clamped by the workpiece holder 2 for liquid spraying.

In this technical solution, the spraying device shown further includes a circular drive mechanism for driving the liquid spray pipe 41 to make a circular motion. In practical applications, for some workpieces with complex structures, the circular drive mechanism can drive the liquid spray pipe 41 to perform annular circular motion, so that the polishing liquid can be sprayed on various parts of the workpiece more comprehensively, so that the workpiece can be treated seamlessly. The jet polishing of the dead angle further improves the processing quality of the utility model.

Preferably, referring to FIG. 8 , the circular drive mechanism includes a movement track block 42 arranged on the machine table 1, an annular channel 421 arranged on the movement track block 42, a moving block 43 slidingly arranged in the annular channel 421, Rotate the rotating block 44 arranged on the motion track block 42 and the seventh drive member for driving the rotating block 44 to rotate. The active block is provided with a sliding groove 441, and the moving block 43 runs through the annular channel 421 and the sliding groove 441 Connected with the rotating block 44 , the liquid spray pipe 41 passes through the moving block 43 . When the workpiece is sprayed and polished, the seventh driving member drives the rotating block 44 to rotate, and the rotation of the rotating block 44 makes the groove wall of the sliding groove 441 conflict with the moving block 43 and drives the moving block 43 to move in the annular channel 421, thereby making The moving block 43 can perform annular circular movement; the annular circular movement of the moving block 43 can drive the liquid spray end of the liquid spray pipe 41 to perform annular circular movement. The structure is simple and compact in design, stable and reliable in operation and easy to disassemble and maintain.

In this technical solution, referring to FIG. 2 , the Y-axis driving mechanism 14 includes a sliding block 141 slidably arranged on the machine 1 , and a first screw 142 rotatably arranged on the machine 1 along the Y-axis direction of the machine 1 , the first nut (not marked) screwed with the first screw mandrel 142 and the fourth driver 143 for driving the first screw mandrel 142 to rotate, the first nut (not marked in the figure) and the sliding block 141 , the moving seat 11 is slidably disposed on the sliding block 141 and is drivingly connected with the X-axis driving mechanism 13 . When working, the fourth driver 143 drives the first screw mandrel 142 to rotate, and the rotation of the first screw mandrel 142 drives the first nut to move along the first screw mandrel 142, and the movement of the first nut drives the sliding block 141 to move, slide The movement of the block 141 drives the moving base 11 to move along the Y-axis direction of the machine 1 .

The X-axis drive mechanism 13 includes a second threaded screw 131 arranged on the sliding block 141 to rotate along the X-axis direction of the machine 1, a second nut 132 screwed to the second threaded screw 131, and a second screw for driving the second screw. The rod 131 rotates the fifth driving member 133 , and the second nut 132 is connected with the moving base 11 . When working, the fifth driving member 133 drives the second screw rod 131 to rotate, the rotation of the second screw rod 131 drives the second nut 132 to move along the second screw rod 131, and the movement of the second nut 132 drives the moving seat 11 Move along the X-axis direction of the machine 1 on the sliding block 141 .

Driven by the Y-axis drive mechanism 14 and the X-axis drive mechanism 13, the moving seat 11 can enable the workpiece fixture 2 to realize the linkage between the X-axis and the Y-axis, so as to enhance the processing flexibility of the workpiece, so that the workpiece can be obtained more comprehensively and without dead ends. polishing treatment.

In this technical solution, referring to FIG. 1 , FIG. 2 , FIG. 3 and FIG. 7 , the Z-axis driving mechanism 15 includes a fixed seat 151 arranged on the machine table 1 , which is fixed on a fixed seat 151 which is rotated along the Z-axis direction of the machine table 1 . The third screw rod 152 of the seat 151, the third nut screwed to the third screw rod 152 and the sixth driving member 153 for driving the third screw rod 152 to rotate, the lifting base 12 is slidably arranged on the fixed base 151, The third nut is connected with the lift seat 12; the fixed seat 151 is also provided with a counterweight 154, a connecting belt 155 and a rotating wheel 156, the counterweight 154 is slidably arranged on the fixed seat 151, and the connecting belt 155 The rotating wheel 156 is wound around, one end of the connecting belt 155 is connected with the counterweight 154 , and the other end of the connecting belt 155 is connected with the lifting base 12 . In practical application, the sixth driving member 153 drives the third screw rod 152 to rotate, the rotation of the third screw rod 152 drives the third nut to move along the third screw rod 152, and the movement of the third nut drives the lifting seat 12 to move along the machine. The table 1 moves in the Z-axis direction, so as to realize the lifting of the polishing assembly 32 . During the lifting process of the moving base 11, under the action of the counterweight 154, the load of the sixth driving member 153 can be reduced, thereby making the moving of the moving base 11 more stable, thereby improving the working stability and performance of the utility model. Processing quality.

The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form. Although the utility model is disclosed as above with the preferred embodiment, it is not used to limit the utility model. Anyone who is familiar with the utility model Professional technicians, without departing from the scope of the technical solution of the present utility model, should use the technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but if they do not depart from the technical solution of the present utility model, the The utility model technology refers to any simple modification, equivalent change and modification made to the above embodiments, which all belong to the scope of the utility model technical solution.

Claims (10)

1. A multi-station grinding and polishing machine, characterized in that: it comprises a machine platform, a mobile seat that is movably arranged on the machine platform, a plurality of workpiece fixtures that are rotatably arranged on the mobile seat, a lifting seat that is movably arranged on the machine platform, and is arranged on the The grinding mechanism of the lifting base, the machine is provided with an X-axis driving mechanism for driving the moving base to move along the X-axis direction of the machine, and a Y-axis driving mechanism for driving the moving base to move along the Y-axis direction of the machine . A Z-axis drive mechanism for driving the lifting seat to lift along the Z-axis direction of the machine table; the grinding mechanism includes a rectangular bracket that is rotatably arranged on the lifting seat and a plurality of groups of grinding components that are rotatably arranged on the rectangular support, and the rectangular support Multiple groups of grinding assemblies are arranged at intervals on each side of the utility model, and multiple grinding assemblies on the same side are used to simultaneously process workpieces carried by multiple workpiece holders. 2. A multi-station grinding and polishing machine according to claim 1, characterized in that: the grinding mechanism also includes a first rotating shaft rotatably arranged on the lifting seat and a first rotating shaft for driving the first rotating shaft to rotate. The driving part, the first rotating shaft is connected with the rectangular support; the grinding assembly includes a grinding disc rotating shaft arranged on the rectangular support and a bearing seat sleeved on the grinding disc rotating shaft, the grinding disc rotating shaft runs through the rectangular support, and the grinding disc rotating shaft is located at one end of the rectangular support. There is a first bevel tooth; a second rotating shaft and a second driving member for driving the second rotating shaft are rotated in the rectangular bracket, and a plurality of second bevel teeth are arranged at intervals on the second rotating shaft, and a plurality of The second bevel teeth mesh with the first bevel teeth of the grinding assemblies respectively. 3. A multi-station grinding and polishing machine according to claim 2, characterized in that: the second rotating shaft is also provided with a tapered fixing seat connected with the second bevel tooth, and the second bevel tooth An inverted tapered inner cavity is provided, the second bevel tooth is sleeved on the tapered fixing seat and connected to the tapered fixing seat via screws, and the outer tapered surface of the tapered fixing seat conflicts with the inner side of the inverted tapered inner cavity. 4. A multi-station grinding and polishing machine according to claim 1, characterized in that: the workpiece fixture includes a workpiece rotating shaft rotatably arranged on the moving seat, a rotating tooth connected to the workpiece rotating shaft, and a tooth meshing with the rotating tooth The bar and the third driving member for driving the rack to move, and the top of the workpiece rotating shaft is provided with a clamping block for clamping the external workpiece. 5. A multi-station grinding and polishing machine according to claim 4, characterized in that: an air channel is provided inside the workpiece rotating shaft, and an air nozzle communicating with the air channel is provided at the bottom of the workpiece rotating shaft. 6. A multi-station grinding and polishing machine according to claim 1, characterized in that: the moving base is provided with a spraying device for spraying and polishing the workpiece clamped by the workpiece fixture, and the spraying device includes a set Liquid spray tube on the side of the workpiece holder. 7. A multi-station grinding and polishing machine according to claim 6, characterized in that: there are multiple liquid spray pipes, and each liquid spray pipe corresponds to a workpiece fixture. 8. A multi-station grinding and polishing machine according to claim 1, characterized in that: the Y-axis driving mechanism includes a sliding block slidably arranged on the machine table, and a sliding block arranged on the machine table along the Y-axis direction of the machine table The first screw rod of the table, the first nut screwed with the first screw rod, and the fourth driving member used to drive the first screw rod to rotate, the first nut is connected with the sliding block, and the moving seat is slidably arranged on The sliding block is also drivingly connected with the X-axis driving mechanism. 9. A multi-station grinding and polishing machine according to claim 8, characterized in that: the X-axis driving mechanism includes a second screw rod arranged on the sliding block to rotate along the X-axis direction of the machine table, and a first The second nut screwed to the two screw rods and the fifth driving member used to drive the rotation of the second screw rod, the second nut is connected with the moving seat. 10. A multi-station grinding and polishing machine according to claim 1, characterized in that: the Z-axis drive mechanism includes a fixed seat arranged on the machine table, and is arranged on the fixed seat to rotate along the Z-axis direction of the machine table The third screw rod, the third nut screwed with the third screw rod, and the sixth driver for driving the third screw rod to rotate, the lifting seat is slidably arranged on the fixed seat, and the third nut and the lifting seat connection; the fixed seat is also provided with a counterweight, a connecting belt and a rotating wheel, the counterweight is slidably arranged on the fixed seat, the connecting belt is wound around the rotating wheel, and one end of the connecting belt is connected with the counterweight, The other end of connecting band is connected with lifting seat.