CN113500508B

CN113500508B - Intelligent workpiece clamping system of grinding machine

Info

Publication number: CN113500508B
Application number: CN202110731022.5A
Authority: CN
Inventors: 曾珍; 姚海彪; 曾永忠; 王艳苹; 彭爱赣; 刘升愿; 王玉平; 邹世文
Original assignee: Jian College
Current assignee: Jian College
Priority date: 2021-06-29
Filing date: 2021-06-29
Publication date: 2023-01-20
Anticipated expiration: 2041-06-29
Also published as: CN113500508A

Abstract

The invention provides an intelligent workpiece clamping system of a grinding machine, which comprises a rack, wherein the upper surface of the rack is connected with a sliding seat in a sliding manner, clamping components are fixed on the surfaces of two sides of the sliding seat, a rotary component is arranged in the sliding seat, and an execution end of the rotary component is connected with a magnetic suction fixing component in the sliding seat; the sliding seat comprises a hollow sliding table, a first supporting strip and second supporting strips, wherein the hollow sliding table is connected with the upper surface of the rack in a sliding mode; the clamping assembly comprises a supporting table fixed on one side surface of the sliding seat, an air cylinder fixed on the upper surface of the supporting table, and a mounting box fixed on a piston rod at one end, close to each other, of the two air cylinders. The workpiece clamping device can drive the workpiece to automatically move on the hollow sliding table, and simultaneously clamp and fix the workpiece from multiple angles of the workpiece, so that the clamping effect is improved.

Description

Intelligent workpiece clamping system of grinding machine

Technical Field

The invention relates to the technical field of grinding machines, and particularly provides an intelligent workpiece clamping system of a grinding machine.

Background

As is well known, a grinding machine is a machine tool that grinds a surface of a workpiece by a grinding tool using a numerical control technique. When the grinding machine is used, the workpiece is clamped and fixed by the workpiece positioning and clamping device.

The existing patent (with the application number of CN 202022302614.9) provides a special clamp for a numerical control internal grinding machine, the special clamp comprises a grinding machine body and a clamp body, two limiting grooves are formed in the grinding machine body, limiting blocks are connected to the inner walls of the limiting grooves in a sliding mode, a partition plate is fixedly connected to the inner wall of the clamp body, and the bottom of the partition plate is rotatably connected with two first screw rods; through the cooperation use of first servo motor and first lead screw, first servo motor can drive first lead screw and stopper high-speed joint, anchor clamps body card is in the grinding machine body when avoiding artifical installation, or anchor clamps body mounted position skew, lead to the great condition of work piece machining error to take place, play the effect of making things convenient for staff's mounting fixture body, through setting up the slider, accessible second servo motor is at the uniform velocity press from both sides tight work piece, the problem that artifical locking can't effective control power say has been solved.

The clamping device clamps the workpiece at a constant speed through the second servo motor. However, the clamping device only clamps the workpiece from two ends of the workpiece through the screw rod driving the limiting blocks. Because most of the workpieces are different in form, the clamping area between the limiting block and the workpiece is limited, the clamping force is small, and the clamping effect is not ideal.

Disclosure of Invention

Based on this, the present invention provides an intelligent clamping system for workpieces of a grinding machine to solve the above problems in the background art.

The invention provides an intelligent workpiece clamping system of a grinding machine, which comprises a rack, wherein the upper surface of the rack is connected with a sliding seat in a sliding manner, clamping components are fixed on the surfaces of two sides of the sliding seat, a rotary component is arranged in the sliding seat, and an execution end of the rotary component is connected with a magnetic suction fixing component in the sliding seat;

the sliding seat comprises a hollow sliding table, a first supporting strip and second supporting strips, wherein the hollow sliding table is connected with the upper surface of the rack in a sliding mode, the first supporting strip is fixed on the inner wall of the top end of the hollow sliding table, and the second supporting strips are located on two sides of the first supporting strip and are fixed on the inner wall of the top end of the hollow sliding table at equal intervals;

the clamping assembly comprises a supporting table fixed on one side surface of the sliding seat, air cylinders fixed on the upper surface of the supporting table, and a mounting box fixed on a piston rod at one end, close to each other, of each of the two air cylinders, and a plurality of first telescopic clamping rods arranged in an array are fixed inside the mounting box;

the magnetic attraction fixing component comprises a lifting frame, a second telescopic clamping rod and an electromagnet, wherein the lifting frame is connected with the execution end of the rotary component and arranged on two sides of the first supporting strip;

the intelligent workpiece clamping system is used for rotating the lifting frame up and down under the drive of the rotating assembly when clamping a workpiece, so that the workpiece is driven to translate on the upper surface of the sliding seat and is adsorbed and fixed through the electromagnet.

Furthermore, a shielding blade is connected to the first rotating shaft in a rotating mode, and the first rotating shaft penetrates through a shell of the hollow sliding table and is connected with an execution end of the power assembly. It can be understood that the scraps splashed when the workpiece is processed by the grinding machine through the shielding blade are shielded, and the high-temperature scraps are prevented from entering the sliding seat and damaging the workpiece in the sliding seat.

Furthermore, power component is including locating first rotation axis periphery just is located the carousel of cavity slip table one end to and through the pivot with the driven lever of connecting is rotated to the bottom of carousel. It will be appreciated that this arrangement allows for the simultaneous rotation of a plurality of turntables via the driven rods.

Further, power component still including being located the top of first bracing piece, and through the second rotation axis with the casing of cavity slip table rotates the rotor plate of connecting, and is fixed in the second rotation axis extends to the initiative rotary rod of outside one end, the one end that the second rotation axis was kept away from to the initiative rotary rod through the pivot with the driven lever rotates and connects. It will be appreciated that this arrangement allows the driven lever to follow the pivotal displacement of the pivotal plate as the pivotal plate is rotated by the urging of the lifting frame.

Furthermore, an opening is formed in one end, close to the second rotating shaft, of the rotating plate, and a torsion spring sleeved on the outer surface of the second rotating shaft is arranged in the opening; the fixed end of the torsion spring is abutted with the upper surface of the first supporting strip, and the movable end of the torsion spring is abutted with the shell of the rotating plate. It can be understood that the fixed end of the torsion spring is abutted against the upper surface of the first supporting strip, and the movable end of the torsion spring is abutted against the shell of the rotating plate, so that the rotating plate can rotate by means of energy storage of the torsion spring.

Furthermore, a sliding wheel is rotatably connected to the shell of the rotating plate through a rotating shaft. It will be appreciated that this arrangement allows the pivotal plate to reduce dry friction between the lifting frame and the pivotal plate by virtue of the pivoting of the sliding wheels thereon on the lifting frame.

Further, first flexible clamping bar with the flexible clamping bar structure of second is the same, first flexible clamping bar including be fixed in the inside dead lever of mounting box, and with dead lever sliding connection, and extend to outside movable rod, the one end butt that the movable rod extends to the dead lever has the spring. It can be understood that the spring abuts against the movable rod, so that the movable rod is quickly returned to the original working position through the pushing of the energy storage of the spring.

Furthermore, the upper surface of the hollow sliding table is fixed with infrared distance measuring instruments which are symmetrically arranged. It will be appreciated that this arrangement may utilise an infra-red range finder to estimate the dimensions of the workpiece to be clamped.

Furthermore, a PLC controller is fixed on the surface of one side of the rack and connected with the infrared range finder through a lead. It can be understood that the extension length of the piston rod of the air cylinder can be controlled by the PLC controller so as to adapt to workpieces in different shapes.

Further, the gyration subassembly is including locating the first turning block at the inside both ends of cavity slip table, first turning block one end through the pivot with the inner wall of cavity slip table rotates to be connected, the other end embedding has electric telescopic handle, electric telescopic handle keeps away from the one end of first turning block and is fixed with the second turning block, the one end that electric telescopic handle was kept away from to the second turning block through the pivot with the bottom of lifting frame is rotated and is connected. It will be appreciated that this arrangement allows the lifting frame to pivot up and down as the first pivot block is rotated.

Compared with the prior art, the invention has the beneficial effects that:

the workpiece clamping device can drive the workpiece to automatically move on the hollow sliding table, and simultaneously clamp and fix the workpiece from multiple angles of the workpiece, so that the clamping effect is improved. The method specifically comprises the following steps: the workpiece is moved through the upper and lower rotation of the lifting frame, in the process, the telescopic clamping rods of the second telescopic clamping rods are used for adapting to the shapes of different workpieces, the movement of the workpiece is limited, the workpieces are adsorbed and fixed by the electromagnets at the top ends of the second telescopic clamping rods, and when the workpiece is moved between the two mounting boxes, the workpieces are used for adapting to the shapes of the different workpieces by the telescopic clamping rods of the first telescopic clamping rods and are clamped.

Secondly, when the workpiece is moved and clamped, splash scraps caused by the work of the grinding machine are prevented from entering the hollow sliding table to damage elements in the hollow sliding table, and the scraps accumulated on the hollow sliding table are automatically dumped into the hollow sliding table for collection after the work is finished.

Additional features and advantages of the disclosure will be set forth in the description which follows, or in part may be learned by the practice of the above-described techniques of the disclosure, or may be learned by practice of the disclosure.

In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

Fig. 1 is a schematic overall structure diagram of a workpiece intelligent clamping system of a grinding machine according to the invention;

FIG. 2 is an isometric view of the intelligent workpiece clamping system of the grinding machine of the present invention;

FIG. 3 is a schematic structural diagram of a sliding seat in the intelligent workpiece clamping system of the grinding machine according to the present invention;

FIG. 4 is a cross-sectional view of the intelligent workpiece clamping system of the grinding machine in accordance with the present invention;

FIG. 5 is a schematic structural diagram of a rotating assembly in the intelligent workpiece clamping system of the grinding machine according to the present invention;

FIG. 6 is an enlarged view of the structure at A in FIG. 2;

FIG. 7 is an enlarged view of the structure at B in FIG. 3;

fig. 8 is an enlarged view of a structure at C of fig. 4.

Description of the main symbols:

Detailed Description

To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 to 8, the present invention provides an intelligent workpiece clamping system for a grinding machine, including a frame 10, a sliding seat 20 slidably connected to an upper surface of the frame 10, and clamping assemblies 30 fixed to both side surfaces of the sliding seat 20.

A rotating component 50 is arranged inside the sliding seat 20, and an execution end of the rotating component 50 is connected with the magnetic attraction fixing component 40 inside the sliding seat 20.

The sliding seat 20 includes a hollow sliding table 21 slidably connected to the upper surface of the frame 10, a first supporting bar 22 fixed on the inner wall of the top end of the hollow sliding table 21, and second supporting bars 23 located on two sides of the first supporting bar 22 and fixed on the inner wall of the top end of the hollow sliding table 21 at equal intervals.

The clamping assembly 30 includes a supporting platform 31 fixed on one side surface of the sliding seat 20, a cylinder 32 fixed on the upper surface of the supporting platform 31, and a mounting box 33 fixed on the piston rod at one end of the two cylinders 32 close to each other, wherein a plurality of first telescopic clamping rods 34 arranged in an array are fixed inside the mounting box 33.

The magnetic attraction fixing assembly 40 includes a lifting frame 41 connected to an execution end of the rotation assembly 50 and disposed on two sides of the first supporting bar 22, a second telescopic clamping bar 42 fixed to an upper surface of the lifting frame 41, and an electromagnet 43 fixed to an upper surface of the second telescopic clamping bar 42. When the workpiece is actually clamped, the lifting frame 41 is driven by the rotation assembly 50 to rotate up and down so as to drive the workpiece to move horizontally on the upper surface of the sliding seat 20, and the workpiece is adsorbed and fixed by the electromagnet 43.

It should be noted that, in this embodiment, after the workpiece is placed on the lifting frame 41, the rotation assembly 50 drives the lifting frame 41 to rotate up and down, so that the workpiece moves along with the lifting frame 41 until the workpiece abuts against the first supporting bar 22 and the second supporting bar 23 at the top end of the hollow sliding table 21, and then the workpiece is continuously moved by the up and down rotation of the lifting frame 41. In the process, the second telescopic clamping rod 42 is arranged at the top end of the lifting frame 41, so that the second telescopic clamping rod 42 can adapt to shapes of different workpieces in a telescopic mode, the movement of the workpieces is limited, and the workpieces are adsorbed and fixed through the electromagnet 43 at the top end of the second telescopic clamping rod 42.

Further, when the workpiece is moved to a position between the two mounting boxes 33, the two mounting boxes 33 are pushed to approach each other through the air cylinder 32 until the first telescopic clamping rod 34 on the mounting boxes 33 abuts against the workpiece, so that the first telescopic clamping rod 34 can be used for telescopic adaptation of workpieces with different shapes and clamping the workpieces.

Furthermore, when the grinding machine needs to leave the positions on the two sides of the workpiece for machining, a worker can only adsorb and fix the bottom of the workpiece through the second telescopic clamping rod 42 and the electromagnet 43 at the top end of the lifting frame 41, so that enough space is left for machining the workpiece, and the flexibility of clamping and fixing is improved.

Specifically, referring to fig. 2, 3 and 6, the shielding blade 24 is rotatably connected through the first rotating shaft 25, and the first rotating shaft 25 penetrates through the housing of the hollow sliding table 21 and is connected with the actuating end of the power assembly 60. It should be noted that, in this embodiment, the shielding blade 24 is rotated by the power assembly 60 until the shielding blade 24 maintains a horizontal state, and the shielding blade 24 shields the scraps splashed when the workpiece is machined by the grinding machine, so as to prevent the high-temperature scraps from entering the sliding seat 20 and damaging the workpiece in the sliding seat 20.

It can be understood that, when the shielding blade 24 is inclined downward by the rotation of the shielding blade 24, the scraps are dumped through the inclined surface caused by the downward inclination of the shielding blade 24, so as to be dumped into the sliding seat 20 for collection.

Specifically, the power assembly 60 includes a rotary plate 61 disposed on the outer periphery of the first rotary shaft 25 and located at one end of the hollow sliding table 21, and a driven rod 62 rotatably connected to a bottom end of the rotary plate 61 through a rotary shaft. In addition, the power assembly 60 further includes a rotating plate 66 located at the top end of the first supporting bar 22 and rotatably connected to the housing of the hollow slide table 21 through a second rotating shaft 64, and an active rotating rod 63 fixed to the second rotating shaft 64 and extending to the outside end, wherein the end of the active rotating rod 63 remote from the second rotating shaft 64 is rotatably connected to the driven rod 62 through a rotating shaft.

In the present embodiment, when the first rotating shafts 25 rotate, the bottom end of the rotating disc 61 penetrating through each first rotating shaft 25 is connected to the driven rod 62 through a rotating shaft, so that the rotating discs 61 rotate synchronously through the driven rod 62.

Further, since the rotating plate 66 is disposed on the second rotating shaft 64, and one end of the driving rotating rod 63 on the second rotating shaft 64 is connected to the driven rod 62 through a rotating shaft, when the rotating plate 66 rotates under the pushing of the lifting frame 41, the driven rod 62 follows the rotating plate 66 to perform an angular displacement.

Specifically, referring to fig. 2, fig. 3 and fig. 6, in another preferred embodiment of the present invention, an opening 67 is disposed at one end of the rotating plate 66 close to the second rotating shaft 64, and a torsion spring 65 sleeved on an outer surface of the second rotating shaft 64 is disposed in the opening 67.

The fixed end of the torsion spring 65 abuts against the upper surface of the first supporting bar 22, and the movable end of the torsion spring 65 abuts against the housing of the rotating plate 66. The shell of the rotating plate 66 is rotatably connected with a sliding wheel 68 through a rotating shaft, and the first telescopic clamping rod 34 and the second telescopic clamping rod 42 have the same structure.

The first telescopic clamping rod 34 includes a fixed rod 341 fixed inside the mounting box 33, and a movable rod 343 slidably connected to the fixed rod 341 and extending to the outside, wherein one end of the movable rod 343 extending to the fixed rod 341 is abutted with a spring 342.

In the present embodiment, when the lifting frame 41 pushes the rotating plate 66, the torsion spring 65 is sleeved on the second rotating shaft 64 of the rotating plate 66, and the fixed end of the torsion spring 65 abuts against the upper surface of the first supporting bar 22, and the movable end of the torsion spring 65 abuts against the housing of the rotating plate 66, so that the rotating plate 66 rotates by the energy stored in the torsion spring 65. Further, the rotating plate 66 is made to reduce dry friction between the lifting frame 41 and the rotating plate 66 by the rotation of the upper sliding wheel 68 on the lifting frame 41.

Further, when the cylinder 32 pushes the mounting box 33 to move, since the fixing rod 341 is disposed inside the mounting box 33, the movable rod 343 is slidably connected in the fixing rod 341, so that the movable rod 343 can slide on the fixing rod 341 to adapt to workpieces of different shapes. It should be noted that, since the spring 342 abuts against the movable rod 343, the spring 342 can be used to push the movable rod 343 to the original working position quickly.

Specifically, please refer to fig. 1, 2 and 4 again, in another preferred embodiment of the present invention, the infrared distance measuring devices 26 are symmetrically fixed on the upper surface of the hollow sliding table 21, the PLC controller 70 is fixed on one side surface of the frame 10, and the PLC controller 70 is connected to the infrared distance measuring devices 26 through wires.

It should be noted that, in the present embodiment, the size of the workpiece to be held is thereby estimated by the infrared distance meter 26. After the size of the workpiece to be clamped is estimated by using the infrared distance measuring instrument 26, the infrared distance measuring instrument 26 is connected with the PLC controller 70, and the PLC controller 70 is connected with the air cylinder 32 through a lead, so that the extension length of the piston rod of the air cylinder 32 is controlled by the PLC controller 70 to adapt to workpieces of different shapes.

The rotating assembly 50 includes first rotating blocks 51 disposed at two ends inside the hollow sliding table 21, one end of each first rotating block 51 is rotatably connected to the inner wall of the hollow sliding table 21 through a rotating shaft, and an electric telescopic rod 52 is embedded in the other end of each first rotating block 51. A second rotating block 53 is fixed at one end of the electric telescopic rod 52 far away from the first rotating block 51, and one end of the second rotating block 53 far away from the electric telescopic rod 52 is rotatably connected with the bottom end of the lifting frame 41 through a rotating shaft.

It should be noted that, in this embodiment, when the first rotating block 51 is driven to rotate by the motor connected to the first rotating block 51, the first rotating block 51 is connected to the second rotating block 53 at the bottom end of the lifting frame 41 through the electric telescopic rod 52, so that when the first rotating block 51 rotates, the lifting frame 41 rotates up and down.

Furthermore, the distance between the second rotating block 53 and the first rotating block 51 is controlled by the extension and contraction of the electric telescopic rod 52, so that when the scraps accumulated on the upper surface of the shielding blade 24 need to be removed, the distance between the second rotating block 53 and the first rotating block 51 is shortened, the pushing of the lifting frame 41 to the rotating plate 66 is released, and the shielding blade 24 is automatically inclined.

The specific operation mode of the invention is as follows:

when the intelligent clamping system is used for clamping a workpiece, the workpiece is firstly placed on the lifting frame 41, then the lifting frame 41 is driven to rotate up and down through the rotating assembly 50 so as to move along with the lifting frame 41 until the workpiece is abutted to the first supporting strip 22 and the second supporting strip 23 at the top end of the hollow sliding table 21, and then the workpiece is continuously moved through the up-and-down rotation of the lifting frame 41, in the process, as the second telescopic clamping rod 42 is arranged at the top end of the lifting frame 41, the telescopic action of the second telescopic clamping rod 42 is utilized to adapt to the shapes of different workpieces, the movement of the workpiece is limited, and then the workpiece is adsorbed and fixed through the electromagnet 43 at the top end of the second telescopic clamping rod 42;

when the workpiece is moved between the two mounting boxes 33, the two mounting boxes 33 are pushed to be close to each other through the air cylinder 32 until the first telescopic clamping rod 34 on the mounting boxes 33 abuts against the workpiece, so that the first telescopic clamping rod 34 can be used for adapting to workpieces of different shapes and clamping the workpieces;

the rotation amplitude of the lifting frame 41 is controlled by the expansion and contraction of the electric telescopic rod 52 in the rotation assembly 50, when the lifting frame 41 does not push the rotating plate 66, the rotating plate 66 rotates by means of the energy storage of the torsion spring 65 on the rotating plate, so that the second rotating shaft 64 on the rotating plate 66 drives the driven rod 62 to rotate through the driving rotating rod 63, and further drives the shielding blade 24 connected with the driven rod 62 to incline downwards, so that the shielding blade 24 shields scraps splashed when a workpiece is machined by the grinding machine, and the high-temperature scraps are prevented from entering the sliding seat 20 to damage the workpiece in the sliding seat 20;

through the rotation of sheltering from blade 24 for when sheltering from blade 24 downward sloping, topple over the sweeps through the inclined plane that shelters from the result of blade 24 downward sloping, in order to topple over the sweeps and collect in sliding seat 20.

Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. The intelligent workpiece clamping system of the grinding machine comprises a rack (10) and is characterized in that the upper surface of the rack (10) is connected with a sliding seat (20) in a sliding mode, clamping components (30) are fixed on the surfaces of the two sides of the sliding seat (20), a rotating component (50) is arranged inside the sliding seat (20), and an execution end of the rotating component (50) is connected with a magnetic suction fixing component (40) located inside the sliding seat (20);

the sliding seat (20) comprises a hollow sliding table (21) connected with the upper surface of the rack (10) in a sliding manner, a first supporting strip (22) fixed on the inner wall of the top end of the hollow sliding table (21), and second supporting strips (23) which are positioned on two sides of the first supporting strip (22) and fixed on the inner wall of the top end of the hollow sliding table (21) at equal intervals;

the clamping assembly (30) comprises a supporting table (31) fixed on one side surface of the sliding seat (20), air cylinders (32) fixed on the upper surface of the supporting table (31), and a mounting box (33) fixed on a piston rod at one end, close to each other, of each of the two air cylinders (32), wherein a plurality of first telescopic clamping rods (34) which are arranged in an array mode are fixed inside the mounting box (33);

the magnetic suction fixing assembly (40) comprises a lifting frame (41) which is connected with the execution end of the rotary assembly (50) and is arranged on two sides of the first supporting rod (22), a second telescopic clamping rod (42) fixed on the upper surface of the lifting frame (41), and an electromagnet (43) fixed on the upper surface of the second telescopic clamping rod (42);

the intelligent workpiece clamping system is used for driving the lifting frame (41) to rotate up and down under the driving of the rotating assembly (50) when clamping a workpiece so as to drive the workpiece to translate on the upper surface of the sliding seat (20), and the workpiece is adsorbed and fixed through the electromagnet (43);

gyration subassembly (50) are including locating the first rotation piece (51) at the inside both ends of cavity slip table (21), first rotation piece (51) one end through the pivot with the inner wall of cavity slip table (21) rotates to be connected, the other end embedding has electric telescopic handle (52), the one end that first rotation piece (51) were kept away from in electric telescopic handle (52) is fixed with second rotation piece (53), the one end that electric telescopic handle (52) were kept away from in second rotation piece (53) through the pivot with the bottom of lifting frame (41) is rotated and is connected.

2. The intelligent workpiece clamping system of the grinding machine as claimed in claim 1, characterized in that a shielding blade (24) is rotatably connected through a first rotating shaft (25), and the first rotating shaft (25) penetrates through the shell of the hollow sliding table (21) and is connected with an execution end of a power assembly (60).

3. The intelligent workpiece clamping system of a grinding machine as claimed in claim 2, characterized in that the power assembly (60) comprises a rotary table (61) arranged on the periphery of the first rotating shaft (25) and located at one end of the hollow sliding table (21), and a driven rod (62) rotatably connected with the bottom end of the rotary table (61).

4. The intelligent workpiece clamping system of the grinding machine as claimed in claim 3, wherein the power assembly (60) further comprises a rotating plate (66) which is positioned at the top end of the first supporting bar (22) and is rotatably connected with the shell of the hollow sliding table (21) through a second rotating shaft (64), and an active rotating rod (63) which is fixed at one end of the second rotating shaft (64) extending to the outside, wherein one end of the active rotating rod (63) far away from the second rotating shaft (64) is rotatably connected with the driven rod (62) through a rotating shaft.

5. The intelligent workpiece clamping system of the grinding machine as claimed in claim 4, characterized in that an opening (67) is formed at one end of the rotating plate (66) close to the second rotating shaft (64), and a torsion spring (65) sleeved on the outer surface of the second rotating shaft (64) is arranged in the opening (67);

the fixed end of the torsion spring (65) is abutted against the upper surface of the first supporting strip (22), and the movable end of the torsion spring (65) is abutted against the shell of the rotating plate (66).

6. The intelligent workpiece clamping system of a grinding machine as claimed in claim 5, characterized in that a sliding wheel (68) is rotatably connected to the housing of the rotating plate (66) through a rotating shaft.

7. The intelligent workpiece clamping system of a grinding machine as claimed in claim 1, wherein the first telescopic clamping rod (34) and the second telescopic clamping rod (42) are identical in structure, the first telescopic clamping rod (34) comprises a fixed rod (341) fixed inside the mounting box (33) and a movable rod (343) which is connected with the fixed rod (341) in a sliding mode and extends to the outside, and one end, extending to the fixed rod (341), of the movable rod (343) abuts against a spring (342).

8. The intelligent workpiece clamping system of the grinding machine as claimed in claim 1, characterized in that the upper surface of the hollow sliding table (21) is fixed with symmetrically arranged infrared distance measuring instruments (26).

9. The system for intelligently clamping the workpiece of the grinding machine as claimed in claim 8, wherein a PLC (70) is fixed on one side surface of the machine frame (10), and the PLC (70) is connected with the infrared distance measuring instrument (26) through a wire.