CN214519357U

CN214519357U - Grinding machine

Info

Publication number: CN214519357U
Application number: CN202120040738.6U
Authority: CN
Inventors: 周群
Original assignee: Wuxi Kefu Machinery Manufacturing Co ltd
Current assignee: Wuxi Kefu Machinery Manufacturing Co ltd
Priority date: 2021-01-08
Filing date: 2021-01-08
Publication date: 2021-10-29
Anticipated expiration: 2031-01-08

Abstract

The utility model discloses a grinding machine, which comprises a machine body, wherein a grinding wheel device and an adjusting wheel device which are opposite to each other are arranged above the machine body, the grinding wheel device comprises a rotating assembly arranged above the machine body, a grinding wheel is arranged on the rotating assembly, and a grinding wheel dressing device is arranged at the rear side of the rotating assembly; the adjusting wheel assembly comprises a base, the base is movably connected to a lathe bed through a moving device, a supporting device is arranged on one side, facing the direction of a grinding wheel, above the base and used for connecting a workpiece support, a supporting frame is arranged on the other side above the base, an adjusting wheel is arranged on the supporting frame, and an adjusting wheel trimming device is arranged above the supporting frame; the utility model discloses a set up emery wheel finishing device and adjusting wheel finishing device, can realize having improved work efficiency to polishing of emery wheel and adjusting wheel under the prerequisite of not dismantling emery wheel and adjusting wheel.

Description

Grinding machine

Technical Field

The utility model relates to a machining equipment technical field, concretely relates to grinding machine.

Background

The grinding machine is a lathe for grinding by using a grinding tool, can grind with high efficiency, can grind with high precision and a very small rough surface, and can process materials with high hardness such as hard alloy, hardened steel and the like and materials with high brittleness such as glass, granite and the like. The grinding machine plays a very important role in the field of machining, the application scenes of the grinding machine are more and more extensive with the wide popularization of industrialization, and the centerless grinding machine is one of the grinding machines and is widely applied.

In the existing grinding machine, the surface of the grinding wheel and the surface of the adjusting wheel become uneven after the grinding wheel and the adjusting wheel are used for a period of time, the grinding wheel and the adjusting wheel need to be disassembled for grinding, the effective working time of the grinding machine is wasted, the working efficiency is reduced, the distance between the adjusting wheel and the grinding wheel is manually adjusted, and the machining adaptability to workpieces with different sizes is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a grinding machine through setting up emery wheel finishing device and adjusting wheel finishing device, can realize having improved work efficiency to the polishing of emery wheel and adjusting wheel under the prerequisite of not dismantling emery wheel and adjusting wheel.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a grinding machine comprises a machine body, wherein a grinding wheel device and an adjusting wheel device which are opposite to each other are arranged above the machine body, the grinding wheel device comprises a rotating assembly arranged above the machine body, a grinding wheel is arranged on the rotating assembly, and a grinding wheel dressing device is arranged on the rear side of the rotating assembly; the adjusting wheel assembly comprises a base, the base is movably connected to a lathe bed through a moving device, a supporting device is arranged on one side, facing the direction of the grinding wheel, of the upper portion of the base and used for being connected with a workpiece support, a supporting frame is arranged on the other side of the upper portion of the base, an adjusting wheel is arranged on the supporting frame, and an adjusting wheel trimming device is arranged above the supporting frame.

As a preferred technical solution of the present invention: the rotating assembly comprises a first support, a rotating shaft is arranged on the first support and connected with the grinding wheel, a rotating device is arranged on one side of the first support, and the output end of the rotating device is connected with the rotating shaft.

As a preferred technical solution of the present invention: the trimming device comprises a trimming pen fixing device, the trimming pen fixing device is connected with an X-axis moving device, the X-axis moving device is connected with a Y-axis moving device, and the Y-axis moving device is arranged on the lathe bed.

As a preferred technical solution of the present invention: the moving device comprises a screw rod and two slide rails, the two slide rails are respectively arranged on two sides above the lathe bed and are respectively connected with the base in a sliding manner, and one end of the screw rod is arranged on the side of the base and is used for being connected with rotating equipment; the other end of the lead screw is connected with a nut seat in a threaded manner, and the nut seat is arranged above the lathe bed.

As a preferred technical solution of the present invention: the improved nut adjusting mechanism is characterized in that a connecting plate is arranged above the base, the supporting frame is connected to the connecting plate in a sliding mode, an adjusting mechanism is further arranged on the connecting plate and comprises a bearing seat arranged on the connecting plate, the bearing seat is connected with one end of an adjusting screw rod, a first nut seat is connected to the adjusting screw rod in a threaded mode, and the first nut seat is connected with the supporting frame.

As a preferred technical solution of the present invention: the connecting plates on two sides of the first nut seat are respectively provided with a positioning device, the positioning devices comprise a supporting seat and an adjusting bolt connected with the supporting seat, and the adjusting bolt is abutted to the bearing seat; longitudinal grooves are respectively formed in the front side and the rear side of the base, and transverse through grooves matched with the longitudinal grooves are respectively formed in the front side and the rear side below the supporting frame.

As a preferred technical solution of the present invention: the adjusting wheel trimming device comprises a first Y-axis moving device arranged above the supporting frame, a first Z-axis moving device is arranged above the first Y-axis moving device, an adjusting wheel trimming pen connecting block is arranged below the first Z-axis moving device, and the adjusting wheel trimming pen connecting block is used for being connected with an adjusting wheel trimming pen.

As a preferred technical solution of the present invention: the first Y-axis moving device is arranged above the support frame through a first bottom plate, and the first bottom plate is movably connected with a first connecting plate arranged above the support frame; one side of the first connecting plate is provided with a first adjusting mechanism, the first adjusting mechanism comprises a first bearing seat arranged on the first connecting plate, the first bearing seat is rotatably connected with a first adjusting screw rod, the first adjusting screw rod is in threaded connection with a second nut seat, and the second nut seat is connected with the first bottom plate.

As a preferred technical solution of the present invention: first positioning devices are respectively arranged above the supporting frames on two sides of the second nut seat, each first positioning device comprises a first supporting seat and a first adjusting bolt connected with the first supporting seat, and the first adjusting bolts are abutted with the first connecting plate; the front side and the rear side of the first bottom plate are respectively provided with a first longitudinal through groove, and the front side and the rear side above the support frame are respectively provided with a first transverse through groove matched with the first longitudinal through groove.

As a preferred technical solution of the present invention: the lathe bed is made of marble materials.

The utility model discloses following beneficial effect has:

1. through setting up emery wheel finishing device and adjusting wheel finishing device, can realize polishing to emery wheel and adjusting wheel under the prerequisite of not dismantling emery wheel and adjusting wheel, improved work efficiency.

2. Through setting up the mobile device, can be so that the regulating wheel feeds, need not artifical the regulation, under the prerequisite of improving the precision, can process the work piece of equidimension not.

3. The setting of guiding mechanism can also further adjust the relative strutting arrangement's of regulating wheel position, has further improved the ability of this application processing equidimension work piece not.

Drawings

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

FIG. 2 is a rear view of FIG. 1;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a schematic view of the overall structure of the grinding wheel dressing device;

FIG. 5 is a schematic view of the overall structure of the supporting frame;

FIG. 6 is a schematic view of the overall structure of the lower part of the supporting frame;

FIG. 7 is a schematic view of the overall structure of the trimmer;

FIG. 8 is a right side view of FIG. 7;

FIG. 9 is a schematic view of the overall structure of the first Y-axis nut seat;

FIG. 10 is a schematic view of the overall structure of the first adjustment mechanism;

FIG. 11 is a schematic view of the overall structure of the adjustment mechanism;

in fig. 1 to 11, 1, a bed, 2, a grinding wheel device, 3, a regulating wheel device, 4, a rotating assembly, 5, a grinding wheel, 6, a grinding wheel dressing device, 7, a base, 8, a moving device, 9, a supporting device, 10, a supporting frame, 11, a regulating wheel, 12, a regulating wheel dressing device, 13, a first support, 14, a rotating shaft, 15, a sleeve, 16, a rotating device, 17, a coupling, 18, an X-axis moving device, 19, a Y-axis moving device, 20, a dressing pen fixing device, 21, a through groove, 22, a Y-axis base, 24, a Y-axis guide rail, 25, a Y-axis lead screw, 26, a Y-axis coupling, 26, a Y-axis nut base, 27, a Y-axis slider, 28, an X-axis base, 29, an X-axis guide rail, 30, an X-axis slider, 31, an X-axis lead screw, 32, an X-axis coupling, 33, a lead screw, 34, a slide rail, 35, a nut base, 36, a connecting plate, 37, a connecting plate, An adjusting mechanism 38, a bearing seat 39, an adjusting screw rod 40, a first nut seat 41, a support frame 42, a positioning device 43, a support seat 44, an adjusting bolt 45, a longitudinal groove 46, a transverse through groove 47, a first Y-axis moving device 48, a first Z-axis moving device 49, a first Y-axis slide rail 50, a first Y-axis lead screw 51, a first Y-axis coupler 53, a first Y-axis bearing seat 54, a first Y-axis nut seat 55, a first Y-axis slide block 56, a connecting block 57, a Z-axis slide rail plate 58, a Z-axis slide rail 59, a Z-axis slide block 60, a Z-axis connecting block 61, a Z-axis coupler 62, a Z-axis lead screw 63, an X-axis connecting block 64, an adjusting wheel trimming pen connecting block 65, a first bottom plate 66, a first connecting plate 67, a first adjusting mechanism 68, a first shaft bearing seat 69, a first adjusting screw rod, 70. the second nut seat 71, the first positioning device 72, the first support seat 73, the first adjusting bolt 74, the first transverse through groove 75 and the first longitudinal through groove.

Detailed Description

In order to make the objects and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-2, an embodiment of the present invention provides a grinding machine, which includes a machine body 1, wherein a grinding wheel device 2 and an adjusting wheel device 3 are arranged above the machine body 1, the grinding wheel device 2 includes a rotating assembly 4 arranged above the machine body 1, a grinding wheel 5 is arranged on the rotating assembly 4, and a grinding wheel dressing device 6 is arranged at the rear side of the rotating assembly 4; the adjusting wheel 11 component comprises a base 7, the base 7 is movably connected to the lathe bed 1 through a moving device 8, a supporting device 9 is arranged on one side, facing the direction of the grinding wheel 5, of the upper portion of the base 7, the supporting device 9 is used for being connected with a workpiece support, a supporting frame 10 is arranged on the other side of the upper portion of the base 7, an adjusting wheel 11 is arranged on the supporting frame 10, and an adjusting wheel trimming device 12 is arranged above the supporting frame 10. When the grinding wheel device is used, the rotating assembly 4 drives the grinding wheel 5 to rotate so as to grind a workpiece, the adjusting wheel 11 controls the rotation of the workpiece, and the supporting device 9 is connected with a workpiece support which supports the workpiece during grinding. By arranging the grinding wheel dressing device 6 and the adjusting wheel dressing device 12, the grinding wheel 5 and the adjusting wheel 11 can be polished on the premise of not disassembling the grinding wheel and the adjusting wheel, and the working efficiency is improved.

As shown in fig. 3 and 4, the rotating assembly 4 includes a first support 13, a rotating shaft 14 is arranged on the first support 13, a sleeve 15 is sleeved on the rotating shaft 14, a grinding wheel 5 is sleeved on the outer side of the sleeve 15, a rotating device 16 is arranged on one side of the first support 13, an output end of the rotating device 16 is connected with the rotating shaft 14 through a coupling 17, the rotating device 16 drives the rotating shaft 14 to rotate, so that the grinding wheel 5 is driven to rotate, and the workpiece is ground, wherein the rotating device 16 is preferably a motor. In order to facilitate dressing of the grinding wheel 5, a grinding wheel dressing device 6 is arranged behind the grinding wheel 5, the grinding wheel dressing device 6 comprises a dressing pen fixing device 20, the dressing pen fixing device 20 is used for installing a dressing pen, a through groove 21 is arranged on the rear side of the first support 13, the dressing pen fixing device 20 penetrates through the through groove 21, the dressing pen fixing device 20 is connected with an X-axis moving device 18, the X-axis moving device 18 is connected with a Y-axis moving device 19, the Y-axis moving device 19 is arranged on the machine body 1 through a Y-axis base 22, and the Y-axis moving device 19 is used for driving the X-axis moving device 18 to move back and forth along the axial direction of the grinding wheel 5, so that the dressing pen is driven to move back and forth along the axial direction of the grinding wheel 5 when the grinding wheel 5 is dressed. The X-axis moving device 18 is used for enabling the dressing pen to move back and forth along the radial direction of the grinding wheel 5, when the grinding wheel 5 needs to be dressed, the X-axis moving device 18 enables the dressing pen to contact the grinding wheel 5, and after the grinding wheel 5 is dressed, the X-axis moving device 18 enables the dressing pen to be separated from the grinding wheel 5.

Preferably, the Y-axis moving device 19 includes two Y-axis guide rails 24 disposed above the bed 1, a Y-axis lead screw 25 is disposed between the two Y-axis guide rails 24, one end of the Y-axis lead screw 25 is connected with a Y-axis coupler 26, the Y-axis lead screw 25 is connected with a Y-axis driving device through the Y-axis coupler 26, the Y-axis driving device is preferably a servo motor, the Y-axis lead screw 25 is further screwed with a Y-axis nut seat 26, the upper portion of the Y-axis nut seat 26 is connected with the X-axis moving device 18, the X-axis moving device 18 is slidably connected with the two Y-axis guide rails 24 through a Y-axis slider 27, the X-axis moving device 18 includes an X-axis base 28, the lower end of the X-axis base 28 is respectively connected with a Y-axis slider 27 and a Y-axis nut seat 26, two X-axis guide rails 29 are disposed above the X-axis base 28, the two X-axis guide rails 29 are connected with an X-axis slider 30, a pen-adjusting fixing device 20 is disposed above the X-axis slider 30, the inside of the X-axis sliding block 30 is connected with an X-axis lead screw 31 through an X-axis nut seat, one end of the X-axis lead screw 31 is connected with an X-axis coupler 32, and the X-axis coupler 32 is used for being connected with an X-axis driving device.

As shown in fig. 5 and 6, the moving device 8 includes a screw 33, two slide rails 34, the two slide rails 34 are respectively disposed on two sides above the bed 1, the two slide rails 34 are respectively connected with the base 7 through sliders 40 in a sliding manner, and one end of the screw 33 is disposed on the side of the base 7 and is used for connecting with a rotating device; the other end spiro union of lead screw 33 has nut seat 35, nut seat 35 is fixed on lathe bed 1, when using, rotating equipment is driving the rotation of lead screw 33, lead screw 33 is along the direction round trip movement of slide rail 34 to make base 7 can be along slide rail 34 direction round trip movement, thereby driving adjustment wheel device 3 that sets up on base 7 along the direction round trip movement of slide rail 34, thereby realize the distance between adjustment emery wheel 5 and adjustment wheel 11, thereby can adapt to the work piece of equidimension not.

A connecting plate 36 is arranged above the base 7, the support frame 10 is slidably connected to the connecting plate 36, an adjusting mechanism 37 is further arranged on the connecting plate 36, as shown in fig. 11, the adjusting mechanism 37 includes a bearing seat 38 arranged on the connecting plate 36, the bearing seat 38 is connected with an adjusting screw 39, a first nut seat 40 is screwed on the adjusting screw 39, and the first nut seat 40 is connected with the support frame 10. The end part of the adjusting screw rod 39 is provided with a rotating part, the rotating part is a nut type rotating part, the adjusting screw rod 39 is rotated through the rotating part, and then the first nut seat 40 is driven to move along the direction of the adjusting screw rod 39, so that the support frame 10 can move along the longitudinal direction of the connecting plate 36, and further the distance between the adjusting wheel 11 and the support device 9 is adjusted, and further the capability of adapting to workpieces of different sizes is improved. In order to stabilize the adjusting mechanism 37, positioning devices 42 are respectively arranged on the connecting plates 36 at two sides of the first nut seat 40, each positioning device 42 comprises a supporting seat 43 and an adjusting bolt 44 connected with the supporting seat 43, the adjusting bolt 44 abuts against the bearing seat 38, even if the adjusting bolt 44 abuts against the side surface of the bearing seat 38 during use, the side surface of the bearing seat 38 is preferably a dovetail-shaped groove, the end part of the adjusting bolt 44 is conical in shape matched with the dovetail-shaped groove, and the connecting plates 36 can be adjusted on the base 7 along the transverse direction of the connecting plates through the matching of the two sets of positioning devices 42, so that the supporting frame 10 can be adjusted along the transverse direction of the connecting plates 36; in order to enable the support frame 10 to be better fixed after being adjusted in the transverse or longitudinal direction of the connecting plate 36, longitudinal grooves 45 are respectively formed in the front side and the rear side of the base 7, and transverse through grooves 46 matched with the longitudinal grooves 45 are respectively formed in the front side and the rear side below the support frame 10, wherein the cross section of the longitudinal groove 45 in the front side of the base 7 is in a convex shape, when the support frame 10 is used, after the support frame 10 is adjusted, the transverse through grooves 46 and the longitudinal grooves 45 are connected together through bolts, and the support frame 10 can be well fixed on the base 7.

As shown in fig. 7 to 9, the adjustment wheel truing device 12 includes a first Y-axis moving device 47 disposed above the supporting frame 10, a first Z-axis moving device 48 disposed above the first Y-axis moving device 47, and an adjustment wheel truing pen connecting block 64 disposed below the first Z-axis moving device 48, the adjustment wheel truing pen connecting block 64 being used for connecting with an adjustment wheel truing pen. Wherein, the first Y-axis moving device 47 preferably comprises two first Y-axis sliding rails 49 arranged above the supporting frame 10, a first Y-axis lead screw 50 is arranged between the two first Y-axis sliding rails 49, one end of the first Y-axis lead screw 50 is connected with the driving device through a first Y-axis coupler 51, and the other end is connected with a first Y-axis bearing seat 53, wherein the first Y-axis coupler 51 and the first Y-axis bearing seat 53 are respectively arranged at two ends of the two first Y-axis sliding rails 49, a first Y-axis nut seat 54 is arranged on the first Y-axis lead screw 50, a first Y-axis sliding block 55 is arranged on the first Y-axis nut seat 54, the lower end of the first Y-axis sliding block 55 is respectively connected with the two first Y-axis sliding rails 49 in a sliding manner, a connecting block 56 is arranged at the upper end of the first Y-axis sliding block 55, a Z-axis sliding rail plate 57 is arranged on the side surface of the connecting block 56, two Z-axis sliding rails 58 are arranged on the Z-axis sliding rail plate 57, two Z-axis slide rails 58 are respectively connected with a Z-axis connecting block 60 through Z-axis slide blocks 59, the end parts of the two Z-axis slide rails 58 are provided with Z-axis couplers 61, the Z-axis couplers 61 are connected with one end part of a Z-axis lead screw 62, the Z-axis lead screw 62 is connected with a Z-axis driving device through the Z-axis couplers 61, the Z-axis lead screw 62 is connected with the Z-axis connecting block 60, a Z-axis connecting block 63 is arranged below the Z-axis connecting block 60, the lower part of the Z-axis connecting block 63 is connected with an adjusting wheel adjusting pen connecting block 64 in a sliding manner, the adjusting wheel adjusting pen connecting block 64 is used for being connected with an adjusting wheel adjusting pen, when the adjusting wheel trimming pen is used, the adjusting wheel adjusting pen can be driven to move back and forth along the Y-axis direction by the rotation of the first Y-axis lead screw 50, the adjusting wheel adjusting pen can be driven to move back and forth along the direction of the Z-axis lead screw 62 by the rotation of the Z-axis lead screw 62, the adjusting wheel adjusting pen connecting block 64 can be finely adjusted along the direction of the Z-axis connecting block 63, in order to make the adjustment more accurate, a scale along the X-axis direction is provided on the side of the adjustment wheel adjustment pen attachment block 64.

In order to adjust the position of the adjusting wheel trimming device 12 relative to the adjusting wheel 11, so as to adapt to adjusting wheels 11 with different sizes, the first Y-axis moving device 47 is arranged above the supporting frame 10 through a first bottom plate 65, i.e. two first Y-axis slide rails 49 are arranged above the first bottom plate 65, and the first bottom plate 65 is connected with a first connecting plate 66 arranged above the supporting frame 10 in a sliding manner; a first adjusting mechanism 67 is disposed on one side of the first connecting plate 66, as shown in fig. 10, the first adjusting mechanism 67 includes a first bearing seat 68 disposed on the first connecting plate 66, the first bearing seat 68 is rotatably connected with a first adjusting screw 69, a second nut seat 70 is screwed on the first adjusting screw 69, the second nut seat 70 is connected with the first base plate 65, a first rotating portion is disposed at an end portion of the first adjusting screw 69, the first rotating portion is a nut-type rotating portion, the first adjusting screw 69 is rotated by the first rotating portion, and the first base plate 65 is driven by the second nut seat 70 to move back and forth along the longitudinal direction of the first connecting plate 66, so that the trimmer wheel trimming device 12 can move back and forth along the longitudinal direction of the first connecting plate 66; in order to facilitate the adjustment of the adjustment wheel trimming device 12 along the transverse direction of the first connecting plate 66, first positioning devices 71 are respectively arranged above the supporting frame 10 at both sides of the second nut seat 70, each first positioning device 71 comprises a first supporting seat 72 and a first adjusting bolt 73 connected with the first supporting seat 72, the first adjusting bolt 73 is abutted against the first connecting plate 66, preferably, a dovetail-shaped groove is arranged at the side surface of the first connecting plate 66, a conical end part matched with the dovetail-shaped groove is arranged at the end part of the first adjusting bolt 73, the first connecting plate 66 can move along the transverse direction by adjusting the positions of the two first bolts, so that the first bottom plate 65 can be adjusted along the transverse direction of the supporting frame 10, and in order to better fix the adjustment wheel trimming device 12 on the upper part of the supporting frame 10, first longitudinal through grooves 75 are respectively arranged at the front side and the rear side of the first bottom plate 65, the front side and the rear side above the supporting frame 10 are respectively provided with a first transverse through groove 74 matched with the first longitudinal through groove 75, and when the trimming wheel adjusting device is used, bolts respectively penetrate through the first longitudinal through groove 75 and the first transverse through groove 74, so that the trimming wheel adjusting device can be fixed on the upper portion of the supporting frame 10. Lathe bed 1 adopts the marble material to make, adopts the lathe bed of marble material, for current iron lathe bed, under the prerequisite of guaranteeing mechanical strength, still be difficult for receiving the influence of temperature and take place to warp, when guaranteeing the precision, still do not receive external electromagnetic influence.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A grinding machine, characterized by: the grinding wheel device comprises a machine body (1), wherein a grinding wheel device (2) and an adjusting wheel device (3) which are opposite to each other are arranged above the machine body (1), the grinding wheel device (2) comprises a rotating assembly (4) arranged above the machine body (1), a grinding wheel (5) is arranged on the rotating assembly (4), and a grinding wheel finishing device (6) is arranged on the rear side of the rotating assembly (4); the adjusting wheel (11) component comprises a base (7), the base (7) is movably connected to the lathe bed (1) through a moving device (8), a supporting device (9) is arranged on one side, facing the direction of the grinding wheel (5), of the upper portion of the base (7), the supporting device (9) is used for connecting a workpiece support, a supporting frame (10) is arranged on the other side of the upper portion of the base (7), an adjusting wheel (11) is arranged on the supporting frame (10), and an adjusting wheel trimming device (12) is arranged above the supporting frame (10).

2. A grinding machine as claimed in claim 1 in which: the rotating assembly (4) comprises a first support (13), a rotating shaft (14) is arranged on the first support (13), the rotating shaft (14) is connected with the grinding wheel (5), a rotating device (16) is arranged on one side of the first support (13), and the output end of the rotating device (16) is connected with the rotating shaft (14).

3. A grinding machine as claimed in claim 1 in which: the trimming device comprises a trimming pen fixing device (20), the trimming pen fixing device (20) is connected with an X-axis moving device (18), the X-axis moving device (18) is connected with a Y-axis moving device (19), and the Y-axis moving device (19) is arranged on the lathe bed (1).

4. A grinding machine as claimed in claim 1 in which: the moving device (8) comprises a screw rod (33) and two sliding rails (34), the two sliding rails (34) are respectively arranged on two sides above the lathe bed (1), the two sliding rails (34) are respectively connected with the base (7) in a sliding mode, and one end of the screw rod (33) is arranged on the side of the base (7) and used for being connected with rotating equipment; the other end of the lead screw (33) is connected with a nut seat (35) in a threaded mode, and the nut seat (35) is arranged above the lathe bed (1).

5. A grinding machine as claimed in claim 1 in which: the improved nut adjusting mechanism is characterized in that a connecting plate (36) is arranged above the base (7), the supporting frame (10) is connected to the connecting plate (36) in a sliding mode, an adjusting mechanism (37) is further arranged on the connecting plate (36), the adjusting mechanism (37) comprises a bearing seat (38) arranged on the connecting plate (36), the bearing seat (38) is connected with one end of an adjusting screw rod (39), a first nut seat (40) is connected to the adjusting screw rod (39) in a threaded mode, and the first nut seat (40) is connected with the supporting frame (10).

6. A machine as claimed in claim 5 in which: the connecting plates (36) on two sides of the first nut seat (40) are respectively provided with a positioning device (42), each positioning device (42) comprises a supporting seat (43) and an adjusting bolt (44) connected with the supporting seat (43), and the adjusting bolts (44) are abutted to the bearing seats (38); longitudinal grooves (45) are respectively formed in the front side and the rear side of the base (7), and transverse through grooves (46) matched with the longitudinal grooves (45) are respectively formed in the front side and the rear side of the lower portion of the support frame (10).

7. A grinding machine as claimed in claim 1 in which: the adjusting wheel trimming device (12) comprises a first Y-axis moving device (47) arranged above the support frame (10), a first Z-axis moving device (48) is arranged above the first Y-axis moving device (47), an adjusting wheel trimming pen connecting block (64) is arranged below the first Z-axis moving device (48), and the adjusting wheel trimming pen connecting block (64) is used for being connected with an adjusting wheel trimming pen.

8. A grinding machine as claimed in claim 7 in which: the first Y-axis moving device (47) is arranged above the support frame (10) through a first bottom plate (65), and the first bottom plate (65) is movably connected with a first connecting plate (66) arranged above the support frame (10); one side of the first connecting plate (66) is provided with a first adjusting mechanism (67), the first adjusting mechanism (67) comprises a first bearing seat (68) arranged on the first connecting plate (66), the first bearing seat (68) is rotatably connected with a first adjusting screw rod (69), the first adjusting screw rod (69) is screwed with a second nut seat (70), and the second nut seat (70) is connected with the first bottom plate (65).

9. A grinding machine as claimed in claim 8 in which: a first positioning device (71) is respectively arranged above the supporting frames (10) at two sides of the second nut seat (70), the first positioning device (71) comprises a first supporting seat (72) and a first adjusting bolt (73) connected with the first supporting seat (72), and the first adjusting bolt (73) is abutted to the first connecting plate (66); the front side and the rear side of the first bottom plate (65) are respectively provided with a first longitudinal through groove (75), and the front side and the rear side above the support frame (10) are respectively provided with a first transverse through groove (74) matched with the first longitudinal through groove (75).

10. A grinding machine as claimed in any one of claims 1 to 9 in which: the lathe bed (1) is made of marble materials.