CN111993264A - Grinding and polishing machine suitable for diamonds - Google Patents

Abstract

The invention discloses a grinding and polishing machine suitable for diamond, comprising a frame, a grinding wheel mechanism and a grinding block mechanism. The grinding wheel mechanism includes a grinding wheel component and a grinding wheel power component; the grinding block mechanism includes a grinding swing component, a grinding rotating component and a grinding component ; Grinding rocking assembly, including rocking power member and rocking arm member; rocking power member is on the frame, rocking arm member is symmetrically arranged on the frame, each rocking arm member is provided with grinding rotating assembly and grinding assembly, grinding rotating The component drives the grinding component to rotate, and the grinding component is in contact with the grinding wheel of the grinding wheel component. The independent power makes the rotation direction of the grinding wheel and the workpiece to be ground opposite and the relative rotation speed is high, which improves the grinding efficiency and grinding effect, and the grinding swing arm assembly is set up to make the workpiece to be ground actively swing evenly, and the symmetrical grinding arm also reduces the size The grinding wheel bearing on the grinding wheel spindle is radially stressed. Moreover, the provided grinding locking member can realize the adjustment of grinding pressure.

Description

A grinding and polishing machine suitable for diamond

technical field

The invention belongs to the technical field of grinding equipment, and in particular relates to a grinding and polishing machine suitable for diamond.

Background technique

In the production of products, a polishing machine is often used to grind and polish the parts, so that the surface of the parts is smooth and the dimensional accuracy of the parts is improved. When polishing parts, the grinding tool is generally required to move in parallel with respect to each point on the workpiece, that is, the movement trajectory of the grinding tool is required to be the same or similar to the shape of the workpiece, so that each point on the workpiece has the same or similar grinding stroke.

In the existing polishing machine, the grinding tool is generally installed on the support frame, and then the support arm is pivoted on the mobile platform that can move in three axial directions, and the grinding tool is used to apply pressure to the workpiece, and the workpiece is pressed against the grinding tool. To make the support arm oscillate passively, so that the movement trajectory of the grinding tool is consistent with the shape of the workpiece surface. However, the grinding tool of this polishing machine is passively forced to follow the surface shape of the workpiece, and is only suitable for processing simple workpieces.

SUMMARY OF THE INVENTION

In view of the deficiencies described in the above-mentioned prior art, the present invention provides a grinding and polishing machine suitable for diamond.

The technical scheme adopted in the present invention is: a grinding and polishing machine suitable for diamond, comprising a frame, a grinding wheel mechanism and a grinding block mechanism are arranged on the frame, and the grinding wheel mechanism includes a grinding wheel assembly and a grinding wheel power assembly; The assembly drives the grinding wheel assembly to rotate; the grinding block mechanism includes a grinding rocking component, a grinding rotating component and a grinding component; the grinding rocking component includes a rocking force member and a rocking arm member; the rocking force member is installed on the frame, and the rocking arm The members are symmetrically arranged on the frame with respect to the rocking force member, and each rocking arm member is provided with a grinding rotating component and a grinding component, the grinding rotating component drives the grinding component to rotate, and the grinding component is in contact with the grinding wheel of the grinding wheel component.

As a preferred solution of the present invention, the grinding wheel assembly includes a grinding wheel main shaft, a grinding wheel main shaft sleeve, a grinding wheel bearing, a grinding wheel support frame and a grinding wheel; the grinding wheel main shaft sleeve is installed on the frame, and the grinding wheel main shaft is connected with the grinding wheel main shaft sleeve through the grinding wheel bearing. , the grinding wheel spindle rotates in the grinding wheel spindle sleeve, the setting of the grinding wheel bearing makes the grinding wheel spindle rotate but the grinding wheel spindle sleeve does not move; and the grinding wheel bearing adopts angular contact bearing, which can better bear the axial force and radial force, and the upper part of the grinding wheel spindle The exposed part of the grinding wheel spindle sleeve is connected to the grinding wheel support frame, and the grinding wheel is installed on the grinding wheel support frame; the part of the bottom part of the grinding wheel spindle exposed to the grinding wheel spindle sleeve is connected to the grinding wheel driven wheel of the grinding wheel power assembly.

In order to better connect with the grinding wheel support frame, a support table is provided at the connection between the grinding wheel spindle and the grinding wheel support frame. The grinding wheel support frame is supported by the support table, and the grinding wheel spindle and the top of the grinding wheel support frame are locked by locking nuts.

As a preferred solution of the present invention, the lower part of the grinding wheel main shaft is provided with a first sealing member at the position of the grinding wheel main shaft sleeve, and the first sealing member includes a labyrinth seal end cap and a pressing end cap; the pressing end cap sleeve It is installed on the grinding wheel main shaft and rotates with the grinding wheel main shaft; the labyrinth-type sealing end cover is installed between the pressing end cover and the grinding wheel main shaft sleeve and rotates with the pressing end cover; and in order to ensure the installation of the seal, the inner wall of the grinding wheel main shaft sleeve is provided with The first sealing groove and the second sealing groove, the outer wall of the labyrinth seal end cap is in the first sealing groove and rotates in the first sealing groove; the outer wall of the pressing end cap is in the second sealing groove and is in the second sealing groove Internal rotation; and the labyrinth type sealing end cover seals the lower part of the grinding wheel spindle sleeve to prevent external dust from entering.

As a preferred solution of the present invention, the upper part of the grinding wheel main shaft is provided with a second sealing member; the second sealing member is a packing sealing structure; the grinding wheel main shaft sleeve is provided with a packing sealing groove, and the packing sealing structure is located in The packing seals the groove and rotates with the grinding wheel spindle.

As a preferred solution of the present invention, a bearing adjustment mechanism is provided on the grinding wheel spindle between the first sealing member and the second sealing member; the bearing adjustment mechanism includes an adjustment collar, an adjustment limit cover and an adjustment spring, Both the adjustment collar and the adjustment limit cover are sleeved on the grinding wheel spindle, and the adjustment limit cover is located above the adjustment collar, and the adjustment collar and the adjustment limit cover are connected by an adjustment spring; the grinding wheel spindle sleeve is provided with an adjustment The limit table, the adjustment limit cover is limited by the adjustment limit table, and can only be adjusted elastically under the adjustment limit table.

As a preferred solution of the present invention, the grinding wheel power assembly includes a grinding wheel driven wheel, a grinding wheel driving wheel, a grinding wheel transmission part and a grinding wheel power part, the output part of the grinding wheel power part is connected with the grinding wheel driving wheel, and the grinding wheel driving wheel is driven by the grinding wheel The workpiece is connected with the driven wheel of the grinding wheel, and the driven wheel of the grinding wheel is connected with the lower part of the main shaft of the grinding wheel and drives the main shaft of the grinding wheel to rotate. The direction of rotation of the grinding wheel power assembly is opposite to that of the grinding rotating assembly.

As a preferred solution of the present invention, the rocking force member includes a rocking motor and an eccentric wheel, the rocking motor is installed on the worktable of the frame, and the output shaft of the rocking motor is connected to the eccentric wheel, and the eccentric wheel is symmetrically connected to the rocking arm. member. The symmetrically arranged rocking arm members are beneficial to reduce the radial force borne by the grinding wheel bearing on the grinding wheel spindle.

As a preferred solution of the present invention, the rocking arm member includes a rocking link, a rocking link, a rocking arm fixed shaft, a rocking connector and a rocking arm; one end of the rocking link is connected to the eccentric wheel, and the The other end is connected with the rocking connecting piece, which is connected with the rocking arm fixed shaft through the bearing and rotates around the rocking arm fixed shaft; the rocking arm is symmetrically installed on the rocking arm fixed shaft, and the axis of the rocking arm is perpendicular to the axis of the grinding wheel to ensure The to-be-processed end face of the workpiece is perpendicular to the outer side of the grinding wheel to avoid scrapping the workpiece; both the grinding rotating component and the grinding component are installed on the swing arm. The rocking arm adopts a reinforced rocking arm, which is beneficial to reduce the deflection deformation of the grinding spindle to the fixed shaft of the rocking arm.

As a preferred solution of the present invention, the grinding assembly includes a grinding main shaft member, a grinding locking member and a grinding clamping member; the grinding main shaft member is installed between the two rocking arms, and the upper part of the grinding main shaft member is connected to the grinding locking member. In connection, the lower part of the grinding spindle member is connected with the grinding clamping member.

As a preferred solution of the present invention, the grinding spindle component includes a grinding spindle, a grinding spindle sleeve, a grinding bearing and a grinding installation sleeve; the grinding installation sleeve is installed between the two rocking arms, and the grinding main shaft sleeve is installed on the grinding shaft through the grinding bearing. inside the installation sleeve and rotate relative to the inside of the grinding installation sleeve; the grinding driven wheel of the grinding rotating component is sleeved on the grinding spindle sleeve and drives the grinding spindle sleeve to rotate; the grinding spindle sleeve is sleeved outside the grinding spindle and drives the grinding spindle to rotate together; and the grinding spindle The part of the bottom exposed grinding spindle sleeve is connected with the grinding clamping member; the upper part of the grinding spindle exposed grinding spindle sleeve is connected with the grinding clamping member; the grinding clamping member locks the grinding spindle and the grinding spindle sleeve. The grinding bearing adopts a needle roller bearing, which can reduce the structural size of the rocking arm and better ensure the verticality of the grinding spindle and the grinding wheel.

As a preferred solution of the present invention, the grinding rotating assembly includes a grinding rotating motor, a grinding driving wheel, a rotating transmission member and a grinding driven wheel; the grinding rotating motor is installed between the two swing arms, and the output shaft of the grinding rotating motor is installed. It is connected with the grinding driving wheel. The grinding driving wheel is connected with the grinding driven wheel through the rotating transmission part. The grinding driven wheel is installed on the grinding main shaft sleeve. The grinding rotating motor drives the grinding driving wheel to rotate. The grinding driving wheel drives the grinding driven wheel through the rotating transmission part. Rotation, the grinding driven wheel drives the grinding spindle sleeve to rotate, and the grinding spindle sleeve drives the grinding spindle to rotate.

As a preferred solution of the present invention, the grinding locking member includes a locking sleeve, a locking spring, a locking hinge, a locking nut and a spring pressing block; the locking sleeve is sleeved on the grinding spindle sleeve and the grinding spindle In addition, the locking spring is installed in the locking sleeve, one end of the locking spring is connected with the grinding spindle, the other end of the locking spring is connected with the spring pressing block, the spring pressing block is installed in the locking sleeve, and the upper part of the locking sleeve is connected. There is a locking hinge, and a locking nut is arranged on the locking hinge; adjusting the locking nut can change the tightness of the locking hinge, and the tightness of the locking hinge can realize the tightness of the locking sleeve, thereby realizing the spring pressing block. of locking. The grinding locking member is a hinge-type bolt pressing structure, the grinding spindle is pressed by the locking spring, and the grinding pressure of the grinding spindle can be changed by adjusting the locking nut.

In order to ensure that the grinding spindle can be adjusted linearly when adjusting the grinding pressure, an adjustment limit groove is provided on the upper part of the grinding spindle sleeve, and a limit block is provided on the grinding spindle, and the limit block moves in the adjustment limit groove; the adjustment limit groove limits the grinding The adjustment range of the spindle.

The invention independently sets the power of the grinding wheel and the workpiece to be ground, and the independent power makes the rotation direction of the grinding wheel and the workpiece to be ground opposite and the relative rotational speed is high, which improves the grinding efficiency and grinding effect, and the grinding swing arm assembly is arranged to make the workpiece to be ground actively Achieving uniform swing can avoid the damage to the surface of the grinding wheel caused by the non-swing of the grinding block, which is beneficial to the self-repair of the grinding wheel. The symmetrical grinding arm also reduces the radial force of the grinding wheel bearing on the grinding wheel spindle. Moreover, the provided grinding locking member can realize the adjustment of the grinding pressure, can independently change the grinding pressure according to the specific conditions of the workpiece, and has stronger applicability.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Figure 2 is a top view of the present invention.

Figure 3 is a rear view of the present invention.

FIG. 4 is a schematic structural diagram of the grinding wheel mechanism of the present invention.

5 is a cross-sectional view of the grinding wheel mechanism of the present invention.

FIG. 6 is a partial enlarged view of part A in FIG. 5 .

FIG. 7 is a partial enlarged view of part B in FIG. 5 .

FIG. 8 is a schematic view of the structure of the grinding assembly of the present invention.

9 is a cross-sectional view of the grinding assembly of the present invention.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example:

A grinding and polishing machine suitable for diamond, as shown in Figures 1-3, includes a frame 1, and a grinding wheel mechanism 2 and a grinding block mechanism 3 are arranged on the frame 1. The grinding wheel mechanism 2 includes a grinding wheel assembly and a grinding wheel power. The grinding wheel power assembly drives the grinding wheel assembly to rotate; the grinding block mechanism 3 includes a grinding rocking component, a grinding rotating component and a grinding component; the grinding rocking component includes a rocking force member and a rocking arm member; the rocking force member is installed on the machine. On the frame 1, the rocking arm member is symmetrically arranged on the frame 1 with respect to the rocking force member, each rocking arm member is provided with a grinding rotating assembly and a grinding assembly, the grinding rotating assembly drives the grinding assembly to rotate, and the grinding wheel of the grinding assembly and the grinding wheel assembly Contact correspondence.

Specifically, the grinding wheel assembly, as shown in Figures 4-7, includes a grinding wheel spindle 2-1, a grinding wheel spindle sleeve 2-2, a grinding wheel bearing 2-3, a grinding wheel support frame 2-4 and a grinding wheel 2-5; the grinding wheel spindle The sleeve 2-2 is installed on the frame 1. The grinding wheel spindle 2-1 is connected with the grinding wheel spindle sleeve 2-2 through the grinding wheel bearing 2-3. The grinding wheel spindle 2-1 rotates in the grinding wheel spindle sleeve 2-2. The setting of the grinding wheel bearing Make the grinding wheel spindle rotate while the grinding wheel spindle sleeve does not move; and the grinding wheel bearing adopts angular contact bearing, which can better bear the axial force and radial force, and the upper part of the grinding wheel spindle 2-1 exposes the part of the grinding wheel spindle sleeve 2-2 and the grinding wheel The support frame 2-4 is connected, and the grinding wheel 2-5 is installed on the grinding wheel support frame 2-4; the part of the grinding wheel main shaft sleeve 2-2 exposed at the lower part of the grinding wheel spindle 2-1 is connected with the grinding wheel driven wheel 2-9 of the grinding wheel power assembly.

In order to better connect with the grinding wheel support frame, a support table is provided at the connection between the grinding wheel spindle 2-1 and the grinding wheel support frame 2-4. The grinding wheel support frame 2-4 is supported by the support table, and the grinding wheel spindle 2-1 is connected with the grinding wheel support frame. 2-4 The top is locked with a locknut.

When only one swing arm is working, the axial pressure and radial pressure on the grinding wheel spindle are very large. A sealing member, the first sealing member includes a labyrinth sealing end cap 2-6 and a pressing end cap 2-7; Rotation; the labyrinth seal end cover 2-6 is installed between the pressing end cover 2-7 and the grinding wheel spindle sleeve 2-2 and rotates with the pressing end cover 2-7; and in order to ensure the installation of the seal, the grinding wheel spindle The inner wall of the sleeve 2-2 is provided with a first sealing groove 2-2-1 and a second sealing groove 2-2-2, and the outer wall of the labyrinth type sealing end cover 2-6 is in the first sealing groove 2-2-1 and in the The first sealing groove 2-2-1 rotates; the outer wall of the compression end cover 2-7 rotates in the second sealing groove 2-2-2 and in the second sealing groove 2-2-2; and the labyrinth seal The end cover 2-6 seals the lower part of the grinding wheel spindle sleeve 2-2 to prevent the entry of external dust.

The upper part of the grinding wheel main shaft 2-1 is provided with a second sealing member 2-8 at the position of the grinding wheel main shaft sleeve 2-2; the second sealing member 2-8 is a packing sealing structure; the grinding wheel main shaft sleeve 2-2 is provided with a packing sealing member Groove 2-2-3, the packing seal structure is located in the packing seal groove 2-2-3 and rotates with the grinding wheel spindle 2-1.

A bearing adjustment mechanism is provided on the grinding wheel spindle 2-1 between the first sealing member and the second sealing member; the bearing adjustment mechanism includes an adjustment collar 4, an adjustment limit cover 5 and an adjustment spring 6. The adjustment collar 4 and the adjustment limit cover 5 are sleeved on the grinding wheel spindle 2-1, and the adjustment limit cover 5 is located above the adjustment collar 4, and the adjustment collar 4 and the adjustment limit cover 5 are connected by an adjustment spring 6; The grinding wheel spindle sleeve 2-2 is provided with an adjustment limit table, and the adjustment limit cover 5 is limited by the adjustment limit table, and can only be adjusted elastically under the adjustment limit table.

The grinding wheel power assembly includes the grinding wheel driven wheel 2-9, the grinding wheel driving wheel 2-10, the grinding wheel transmission part and the grinding wheel power part 2-11, and the output part of the grinding wheel power part 2-11 is connected with the grinding wheel driving wheel 2-10 , The driving wheel 2-10 of the grinding wheel is connected with the driven wheel 2-9 of the grinding wheel through the driving part of the grinding wheel. The direction of rotation of the grinding wheel power assembly is opposite to that of the grinding rotating assembly.

The rocking force member, as shown in Fig. 1-3, includes a rocking motor 3-1 and an eccentric wheel 3-2. The rocking motor 3-1 is installed on the worktable of the frame 1, and the output of the rocking motor 3-1 is The shaft is connected with the eccentric wheel 3-2, and the eccentric wheel 3-2 is symmetrically connected with the swing arm member. The symmetrically arranged rocking arm members are beneficial to reduce the radial force borne by the grinding wheel bearing on the grinding wheel spindle.

The rocking arm member, as shown in Figures 1-3, includes a rocking link 3-3, a rocking link 3-3, a rocking arm fixing shaft 3-4, a rocking connecting piece 3-5 and a rocking arm 3-6; One end of the rocking link 3-3 is connected with the eccentric wheel 3-2, and the other end of the rocking link 3-3 is connected with the rocking connecting piece 3-5, and the rocking link 3-5 is fixed to the shaft 3-4 with the rocking arm through the bearing Connect and rotate around the rocking arm fixed axis 3-4; the rocking arm 3-6 is symmetrically installed on the rocking arm fixed axis 3-4, and the axis of the rocking arm 3-6 is perpendicular to the axis of the grinding wheel 2-5 to ensure that the workpiece is The machining end face is perpendicular to the outer side of the grinding wheel to avoid scrapping the workpiece; both the grinding rotating component and the grinding component are installed on the swing arm 3-6. The rocking arm adopts a reinforced rocking arm, which is beneficial to reduce the deflection deformation of the grinding spindle to the fixed shaft of the rocking arm.

The grinding assembly, as shown in Figures 8-9, includes a grinding spindle member, a grinding locking member and a grinding clamping member; the grinding spindle member is installed between the two rocking arms 3-6, and the upper part of the grinding spindle member is connected to the grinding lock. The tightening member is connected, and the lower part of the grinding spindle member is connected with the grinding clamping member.

The grinding spindle component, as shown in Figure 8-9, includes a grinding spindle 3-7, a grinding spindle sleeve 3-8, a grinding bearing 3-9 and a grinding installation sleeve 3-14; the grinding installation sleeve 3-14 is installed on the two sides. Between the swing arms 3-6, the grinding spindle sleeve 3-8 is installed in the grinding installation sleeve 3-14 through the grinding bearing 3-9 and rotates relative to the grinding installation sleeve 3-14; the grinding driven wheel 3-13 of the grinding rotating assembly The grinding spindle sleeve 3-8 is sleeved on the grinding spindle sleeve 3-8 and drives the grinding spindle sleeve 3-8 to rotate; the grinding spindle sleeve 3-8 is sleeved outside the grinding spindle 3-7 and drives the grinding spindle 3-7 to rotate together; and the grinding spindle 3- 7. The part of the bottom exposed grinding spindle sleeve 3-8 is connected with the grinding clamping member; the upper part of the grinding spindle 3-7 is exposed and the grinding spindle sleeve 3-8 is connected with the grinding clamping member; the grinding clamping member connects the grinding spindle 3-7 with the grinding spindle Spindle sleeves 3-8 are locked. The grinding bearings 3-9 adopt needle roller bearings, which can reduce the structural size of the rocking arm and better ensure the verticality of the grinding spindle and the grinding wheel.

The grinding and rotating assembly, as shown in Figures 8-9, includes a grinding rotating motor 3-10, a grinding driving wheel 3-11, a rotating transmission member 3-12 and a grinding driven wheel 3-13; the grinding rotating motor 3-10 is installed Between the two swing arms 3-6, and the output shaft of the grinding rotating motor 3-10 is connected with the grinding driving wheel 3-11, the grinding driving wheel 3-11 is driven by the rotating transmission member 3-12 and the grinding driven wheel 3-13 Connected, the grinding driven wheel 3-13 is installed on the grinding spindle sleeve 3-8, the grinding rotating motor 3-10 drives the grinding driving wheel 3-11 to rotate, and the grinding driving wheel 3-11 drives the grinding driven wheel through the rotating transmission member 3-12. 3-13 rotates, the grinding driven wheel 3-13 drives the grinding spindle sleeve 3-8 to rotate, and the grinding spindle sleeve 3-8 drives the grinding spindle 3-7 to rotate.

The grinding locking member, as shown in Figures 8-9, includes a locking sleeve 3-14, a locking spring 3-15, a locking hinge 3-16, a locking nut 3-17 and a spring pressing block 3 -18; The locking sleeve 3-14 is set outside the grinding spindle sleeve 3-8 and the grinding spindle 3-7, the locking spring 3-15 is installed in the locking sleeve 3-14 and one end of the locking spring 3-15 It is connected with the grinding spindle 3-7, the other end of the locking spring 3-15 is connected with the spring pressing block 3-18, the spring pressing block 3-18 is installed in the locking sleeve 3-14, and the locking sleeve 3-14 There is a locking hinge 3-16 on the upper part, and a locking nut 3-17 on the locking hinge 3-16; adjusting the locking nut 3-17 can change the tightness of the locking hinge and the tightness of the locking hinge The tightness of the locking sleeve is realized, thereby realizing the locking of the spring pressing blocks 3-18. The grinding locking member is a hinge-type bolt pressing structure, the grinding spindle is pressed by the locking spring, and the grinding pressure of the grinding spindle can be changed by adjusting the locking nut.

In order to ensure that the grinding spindle can be adjusted linearly when adjusting the grinding pressure, an adjustment limit groove is provided on the upper part of the grinding spindle sleeve 3-8, and a limit block is provided on the grinding spindle 3-7, and the limit block moves in the adjustment limit groove; The limit groove limits the adjustment range of the grinding spindle.

Install the workpiece to be machined on the grinding and clamping member, as long as the grinding and clamping member is a structure that can clamp the workpiece to be ground, and the grinding pressure is changed by the grinding locking member, and the swing motor realizes two swing arms through the eccentric wheel The grinding motor drives the grinding spindle to rotate, the grinding spindle drives the workpiece to be processed to rotate, the grinding wheel power part drives the grinding wheel spindle to rotate, the grinding wheel spindle drives the grinding wheel to rotate, and the rotation direction of the grinding wheel is opposite to the rotation direction of the workpiece to be processed to speed up the grinding efficiency.

In the description of this specification, description with reference to the terms "one embodiment", "example", "specific example", etc. means that a specific feature, structure, material or characteristic described in connection with the embodiment or example is included in at least one of the present invention examples or examples. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention, but the protection scope of the present invention is not limited to this. The equivalent replacement or change of the inventive concept thereof shall be included within the protection scope of the present invention.

Claims (10)

1. A grinding and polishing machine suitable for diamonds comprises a frame (1) and is characterized in that: a grinding wheel mechanism (2) and a grinding block mechanism (3) are arranged on the frame (1), and the grinding wheel mechanism (2) comprises a grinding wheel component and a grinding wheel power component; the grinding wheel power assembly drives the grinding wheel assembly to rotate; the grinding block mechanism (3) comprises a grinding swing assembly, a grinding rotating assembly and a grinding assembly; the grinding swing assembly comprises a swing power member and a swing arm member; the swing arm component is arranged on the rack (1) symmetrically with respect to the swing power component, each swing arm component is provided with a grinding rotating assembly and a grinding assembly, the grinding rotating assemblies drive the grinding assemblies to rotate, and the grinding assemblies correspond to grinding wheels of the grinding wheel assemblies in a contact mode.

2. The grinding and polishing machine for diamonds according to claim 1, characterized in that: the grinding wheel component comprises a grinding wheel spindle (2-1), a grinding wheel spindle sleeve (2-2), a grinding wheel bearing (2-3), a grinding wheel support frame (2-4) and a grinding wheel (2-5); the grinding wheel spindle sleeve (2-2) is arranged on the frame (1), and the grinding wheel spindle (2-1) is connected with the grinding wheel spindle sleeve (2-2) through a grinding wheel bearing (2-3); the part of the upper part of the grinding wheel spindle (2-1) exposed out of the grinding wheel spindle sleeve (2-2) is connected with a grinding wheel support frame (2-4), and a grinding wheel (2-5) is arranged on the grinding wheel support frame (2-4); the part of the lower part of the grinding wheel spindle (2-1) exposed out of the grinding wheel spindle sleeve (2-2) is connected with a grinding wheel driven wheel (2-9) of the grinding wheel power assembly.

3. The grinding and polishing machine for diamonds according to claim 2, characterized in that: the part of the lower part of the grinding wheel spindle (2-1) positioned on the grinding wheel spindle sleeve (2-2) is provided with a first sealing component, and the part of the upper part of the grinding wheel spindle (2-1) positioned on the grinding wheel spindle sleeve (2-2) is provided with a second sealing component (2-8).

4. The grinding and polishing machine for diamonds according to claim 1 or 2, characterized in that: the grinding wheel power assembly comprises a grinding wheel driven wheel (2-9), a grinding wheel driving wheel (2-10), a grinding wheel transmission part and a grinding wheel power part (2-11), wherein the output part of the grinding wheel power part (2-11) is connected with the grinding wheel driving wheel (2-10), the grinding wheel driving wheel (2-10) is in transmission connection with the grinding wheel driven wheel (2-9) through the grinding wheel transmission part, and the grinding wheel driven wheel (2-9) is connected with the lower part of a grinding wheel spindle (2-1) and drives the grinding wheel spindle (21) to rotate.

5. The grinding and polishing machine for diamonds according to claim 1 or 2, characterized in that: the swing power component comprises a swing motor (3-1) and an eccentric wheel (3-2), the swing motor (3-1) is installed on a workbench of the rack (1), an output shaft of the swing motor (3-1) is connected with the eccentric wheel (3-2), and the eccentric wheel (3-2) is symmetrically connected with the swing arm component.

6. The diamond grinder/polisher according to claim 5 wherein: the swing arm component comprises a swing connecting rod (3-3), a swing arm fixing shaft (3-4), a swing connecting piece (3-5) and a swing arm (3-6); one end of the swinging connecting rod (3-3) is connected with the eccentric wheel (3-2), the other end of the swinging connecting rod (3-3) is connected with the swinging connecting piece (3-5), and the swinging connecting piece (3-5) is connected with the swinging arm fixing shaft (3-4) through a bearing and rotates around the swinging arm fixing shaft (3-4); the swing arms (3-6) are symmetrically arranged on the swing arm fixing shafts (3-4), and the axes of the swing arms (3-6) are vertical to the axes of the grinding wheels (2-5); the grinding rotating assembly and the grinding assembly are both arranged on the swing arms (3-6).

7. The grinding and polishing machine for diamonds according to claim 1 or 6, characterized in that: the grinding assembly comprises a grinding spindle component, a grinding locking component and a grinding clamping component; the grinding spindle component is arranged between the two swing arms (3-6), the upper part of the grinding spindle component is connected with the grinding locking component, and the lower part of the grinding spindle component is connected with the grinding clamping component.

8. The grinding and polishing machine for diamonds according to claim 7, characterized in that: the grinding spindle component comprises a grinding spindle (3-7), a grinding spindle sleeve (3-8), a grinding bearing (3-9) and a grinding mounting sleeve (3-14); the grinding mounting sleeve (3-14) is arranged between the two swing arms (3-6), and the grinding main shaft sleeve (3-8) is arranged in the grinding mounting sleeve (3-14) through a grinding bearing (3-9) and rotates relative to the grinding mounting sleeve (3-14); a grinding driven wheel (3-13) of the grinding rotating assembly is sleeved on the grinding main shaft sleeve (3-8) and drives the grinding main shaft sleeve (3-8) to rotate; the grinding main shaft sleeve (3-8) is sleeved outside the grinding main shaft (3-7) and drives the grinding main shaft (3-7) to rotate together; the part of the lower part of the grinding spindle (3-7) exposed out of the grinding spindle sleeve (3-8) is connected with the grinding clamping component; the upper part of the grinding main shaft (3-7) is exposed out of the grinding main shaft sleeve (3-8) and is connected with the grinding clamping component; the grinding clamping component locks the grinding main shaft (3-7) and the grinding main shaft sleeve (3-8).

9. The grinding and polishing machine for diamonds according to claim 7, characterized in that: the grinding rotating assembly comprises a grinding rotating motor (3-10), a grinding driving wheel (3-11), a rotating transmission part (3-12) and a grinding driven wheel (3-13); the grinding rotating motors (3-10) are arranged between the two swing arms (3-6), output shafts of the grinding rotating motors (3-10) are connected with grinding driving wheels (3-11), the grinding driving wheels (3-11) are in transmission connection with grinding driven wheels (3-13) through rotating transmission pieces (3-12), and the grinding driven wheels (3-13) are arranged on grinding main shaft sleeves (3-8).

10. The grinding and polishing machine for diamonds according to claim 7, characterized in that: the grinding locking component comprises a locking sleeve (3-14), a locking spring (3-15), a locking hinge (3-16), a locking nut (3-17) and a spring pressing block (3-18); the locking sleeve (3-14) is sleeved outside the grinding main shaft sleeve (3-8) and the grinding main shaft (3-7), the locking spring (3-15) is installed in the locking sleeve (3-14), one end of the locking spring (3-15) is connected with the grinding main shaft (3-7), the other end of the locking spring (3-15) is connected with the spring pressing block (3-18), the spring pressing block (3-18) is installed in the locking sleeve (3-14), the locking hinge (3-16) is arranged on the upper portion of the locking sleeve (3-14), and the locking nut (3-17) is arranged on the locking hinge (3-16).

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