Multi-station high-precision numerical control crystal grinding machine

Abstract

The utility model discloses a multi-station high-precision numerical control crystal grinding machine which comprises a machine tool, a grinding disc capable of rotating to work, a first sliding frame capable of controlling sliding in the Y-axis direction, a second sliding frame connected with the first sliding frame in a sliding mode in the Y-axis direction, a third sliding frame connected with the second sliding frame in a sliding mode in the Z-axis direction and a rotating control motor fixed to the third sliding frame. The working motor is controlled by the rotation control motor to rotate, a grinding surface is arranged on the grinding disc, and by taking the grinding surface as a boundary, a positive angle located above the grinding surface or a negative angle located below the grinding surface can be formed between the axis of a driving shaft of the working motor and the grinding surface. Compared with the prior art, the crystal grinding machine has the advantages that through the arrangement of the three mounting frames, the rotary control motor and the working motor, the front face and the side face of a crystal to be ground and the back face connected with a driving shaft of the working motor can be ground, and the crystal to be ground can be ground without being disassembled and three faces of the crystal need to be ground. And the precision of grinding three surfaces of the crystal can be effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of crystal grinding machine relates to numerical control crystal grinding machine especially, relates to multi -position high -precision numerical control crystal grinding machine. BACKGROUND

[0002] The common crystal ornament or ornament on market for improving its visual angle effect, most of the crystal will have multiple sections, a section at least with three sections, most of the section of the crystal is directly formed through polishing processing, therefore, there is crystal grinding machine on market that can polish the crystal.

[0003] Such as the patent of a kind of crystal grinding machine swing angle mechanism for announcement number CN215036534U, including swing frame, motor fixed on swing frame, and rotating installation in swing frame and can be through motor control swing angle aluminum row frame, and the lower surface of aluminum row frame is equipped with the grinding disc for installing the crystal to be ground.

[0004] The patent in the polishing processing of crystal to be ground, the aluminum row on aluminum row frame can only polish the upper end surface and side surface of crystal to be ground, most of the crystal needs to polish the lower end surface of crystal, i.e. mounting surface to ensure its visual angle effect, when the lower end surface of the crystal is polished by the grinding machine, the crystal to be ground needs to be disassembled in advance, and the end surface originally located below is installed upwards, the disassembly and installation of crystal to be ground will affect the precision of the upper section processing of crystal, i.e. the connection between adjacent sections. UTILITY MODEL CONTENTS

[0005] The utility model discloses in view of the problem that the existing crystal grinding machine cannot process the mounting surface of crystal to be ground and the mounting surface needs to be reassembled when processing, and the problem that the processing precision of crystal is easily caused, the technical problem to be solved by the utility model is to provide a kind of multi -position high -precision numerical control crystal grinding machine that can effectively improve the polishing processing precision of the front surface, side surface and negative surface of crystal to be ground.

[0006] The utility model discloses the technical scheme that the above technical problem is solved as follows: multi -position high -precision numerical control crystal grinding machine, including machine tool;

[0007] The machine tool is installed with grinding disc, motor one that can drive the rotation of grinding disc and Y axis sliding controllable sliding frame one;

[0008] The sliding frame two of X axis sliding controllable sliding frame two is installed on the sliding frame one, and the sliding frame three of Z axis sliding controllable sliding frame three is installed on the sliding frame two;

[0009] The one side of sliding frame three is fixed with rotating control motor, the other side is equipped with the working motor that can install crystal to be ground, the rotating control motor can drive the rotation of working motor, and the rotating angle of working motor is controlled;

[0010] The grinding disc is provided with a grinding surface, and the driving shaft of the working motor and the grinding surface form a positive angle above the grinding surface or a negative angle below the grinding surface.

[0011] The further preferred scheme of the utility model is that the driving shaft of the rotating control motor is fixedly connected with a mounting frame, and the working motor is fixed on the mounting frame.

[0012] The further preferred scheme of the utility model is that the driving shaft of the working motor penetrates through the mounting frame, and a clamp is mounted on the driving shaft of the working motor, and the to-be-ground crystal is fixed on the clamp.

[0013] The further preferred scheme of the utility model is that the clamp is inserted and fixed between the driving shaft of the working motor, and a space is left between the end of the to-be-ground crystal connected with the clamp and the mounting frame.

[0014] The further preferred scheme of the utility model is that the to-be-ground crystal is fixedly connected with the clamp through a pasting or magnetic attraction clamping mode, and the outer size of the to-be-ground crystal is greater than the outer size of the clamp.

[0015] The further preferred scheme of the utility model is that the grinding disc comprises a rough machining grinding disc, a finishing machining grinding disc and a polishing grinding disc, and the three grinding discs are independently arranged or stacked.

[0016] The further preferred scheme of the utility model is that the machine tool comprises a rack and a working shell which is fixed on the rack and has an upper opening, the working shell is provided with a mounting cavity and an avoiding cavity provided with a drainage opening, the grinding disc is rotatably arranged in the mounting cavity, and the upper end surface of the grinding disc or the mounting cavity is higher than the upper end surface of the avoiding cavity.

[0017] The further preferred scheme of the utility model is that a second motor is fixed on the sliding frame one, a guide rail is arranged on the rack, and the driving shaft of the second motor is driven through the structure transmission of the meshing teeth and the rack.

[0018] The further preferred scheme of the utility model is that a third motor is fixed on the sliding frame one, a fourth motor is fixed on the sliding frame two, the third motor drives the sliding of the sliding frame two through a screw rod or a chain, and the fourth motor drives the sliding of the sliding frame three through a screw rod or a chain.

[0019] The further preferred scheme of the utility model is that the sliding frame one is fixed with a piano cover one which covers the guide rail, and the sliding frame one and the sliding frame two are fixed with a piano cover two which covers the third motor.

[0020] Compared with the prior art, the utility model discloses the advantages lie in, through setting up X, Y, Z three axial upper slide -in mounting bracket, with the mounting bracket X, Y, Z axial slide -in rotation control motor and with the rotation control motor control rotation and can install the working motor of the crystal to be ground, when the crystal to be ground contact the polishing surface of the grinding disc of the drive shaft of working motor, the front side of the crystal to be ground, the side and the back of the drive shaft of working motor can all carry out polishing processing, make the crystal to be ground in the case where not disassembling and three -dimensional all need polishing processing, can effectively improve the precision when the crystal three -dimensional grinding processing, ensure the link precision between the adjacent section on the crystal. BRIEF DESCRIPTION OF DRAWINGS

[0021] The utility model will be described in further detail below in combination with the drawings and preferred embodiments, but the skilled person will appreciate that these drawings are only drawn for the purpose of explaining the preferred embodiments and thus should not be taken as limiting the scope of the utility model, and in addition, unless specifically indicated, the drawings only schematically represent the composition or structure of the described object and can include exaggerated display, and the drawings are not necessarily drawn to scale.

[0022] Figure 1 It is the structure schematic drawing of numerical control grinding machine of preferred embodiment of the utility model;

[0023] Figure 2 It is the sectional view of numerical control grinding machine of preferred embodiment of the utility model;

[0024] Figure 3 It is the explosion drawing of view angle one of numerical control grinding machine of preferred embodiment of the utility model;

[0025] Figure 4 It is the explosion drawing of view angle two of numerical control grinding machine of preferred embodiment of the utility model;

[0026] Figure 5 It is the structure schematic drawing of X, Y, Z axial slide -in mounting bracket of preferred embodiment of the utility model;

[0027] Figure 6 It is the structure schematic drawing of Z axial slide -in mounting bracket of preferred embodiment of the utility model;

[0028] Figure 7 It is the structure schematic drawing of working motor of preferred embodiment of the utility model and install the fixture and the crystal to be ground;

[0029] Figure 8 It is the state schematic drawing of the crystal to be ground normal angle that is the front side and side polishing processing of preferred embodiment of the utility model;

[0030] Figure 9 It is the state schematic drawing of the side of the crystal to be ground polishing processing of preferred embodiment of the utility model;

[0031] Figure 10 The utility model discloses preferred embodiment state schematic diagram of the back surface and side surface polishing processing of the crystal to be ground.

[0032] In the drawing: 1, machine tool, 1a, frame, 1b, working shell, 1b1, installation cavity, 1b2, avoiding cavity, 1b3, drain, 1c, guide rail, 1c1, rack, 1d, machine shell, 1d1, operation window;1e, control panel;2, motor one;3, grinding disc;4, motor two;5, sliding frame one, 5a, crossbeam;6, motor three;7, sliding frame two;8, motor four;9, sliding frame three;10, rotary control motor;11, working motor;12, clamp;13, crystal to be ground, 13a, front surface, 13b, back surface;14, mounting frame, 14a, connecting portion, 14b, spacing portion;15, meshing tooth;16, screw one;17, screw two;18, counterweight;19, shell one;20, organ cover one;21, organ cover two;22, shell two;23, shell three;24, cover;25, stand foot. DETAILED DESCRIPTION

[0033] The preferred embodiments of the utility model will be described in detail below with reference to the drawings, and those skilled in the art will appreciate that these descriptions are only descriptive, exemplary, and should not be interpreted as limiting the protection scope of the utility model.

[0034] It should be noted that: similar signs represent similar items in the following drawings, therefore, once an item is defined in one drawing, it can not be further defined and explained in the subsequent drawings.

[0035] The embodiment mainly describes the multi-station high-precision numerical control crystal grinding machine that can effectively improve the polishing processing precision of the front surface, side surface and back surface of the crystal to be ground, and is as follows:

[0036] For example, Figures 1-10As shown, the multi-station high-precision numerical control crystal grinding machine comprises a machine tool 1 provided with a rack 1a and a working shell 1b, a grinding disc 3 driven and rotatingly installed on the rack 1a by a motor 1, a sliding frame 1 driven and slidingly controlled in Y direction and installed on the rack 1a by a motor 2, a sliding frame 2 slidingly controlled in X direction and installed on the sliding frame 1 by a motor 3, a sliding frame 3 slidingly controlled in Z direction and installed on the sliding frame 2 by a motor 4, a rotary control motor 5 fixed on the sliding frame 3, a working motor 6 fixedly connected with a driving shaft of the rotary control motor 5, and a clamp 7 detachably connected with a driving shaft of the working motor 6 and capable of installing a crystal to be ground 8. The rotary control motor 5 and the working motor 6 are preferably servo motors. The rotary control motor 5 can control the included angle between the driving shaft of the working motor 6 and the upper polishing surface of the grinding disc 3, and the working motor 6 can control the rotary control of the adjacent surface angle of the crystal to be ground 8.

[0037] Preferably, the grinding disc 3 is located in the working shell 1b.

[0038] In the embodiment, the end surface of the crystal to be ground 8 contacting the clamp 7 is a negative surface 9, and the end surface away from the clamp 7 is a positive surface 10. The outer dimension of the crystal to be ground 8 is greater than that of the clamp 7. The polishing surface is taken as the boundary, and the direction of the crystal to be ground 8 towards the clamp 7 and the driving shaft of the working motor 6 is taken as the reference. When the positive surface 10 or the junction of the positive surface 10 and the side surface of the crystal to be ground 8 is polished, the included angle between the driving shaft of the working motor 6 and the polishing surface can form a positive angle α above the polishing surface. When the negative surface 9 or the junction of the negative surface 9 and the side surface of the crystal to be ground 8 is polished, the included angle between the driving shaft of the working motor 6 and the polishing surface can form a negative angle β below the polishing surface.

[0039] By arranging the X, Y and Z three-axis sliding installation frame 11, the rotary control motor 5 capable of sliding with the installation frame 11 in X, Y and Z directions, and the working motor 6 capable of being controlled to rotate by the rotary control motor 5 and capable of installing the crystal to be ground 8, the positive surface 10, the side surface and the back surface connected with the clamp 7 of the crystal to be ground 8 can be polished when the crystal to be ground 8 connected with the driving shaft of the working motor 6 contacts the polishing surface of the grinding disc 3. The precision of the crystal three-surface grinding can be effectively improved when the crystal to be ground 8 needs to be polished in three surfaces without being disassembled, and the connection precision between the adjacent surfaces of the crystal can be ensured.

[0040] In actual work, the specific operation steps are as follows:

[0041] Step 1: The grinding disc 3 is driven to rotate by the motor 1 when the crystal to be ground 8 is installed on the working motor 6 and the crystal to be ground 8 is away from the grinding disc 3.

[0042] Step two: the rotation control motor 10 adjusts the working motor 11, so that the driving shaft of the working motor 11 forms a first positive angle a or a negative angle b with the grinding surface of the grinding disc 3, and the working motor 11 drives the to-be-ground crystal 13 to rotate to the angle of the first or first circle of the first cutting surface to be ground.

[0043] Step three: the motor three 6 and the motor four 8 control the to-be-ground crystal 13 to contact the grinding surface of the grinding disc 3, and carry out the grinding processing of the first or first circle of the first cutting surface on the to-be-ground crystal 13.

[0044] Step four: the motor three 6 and the motor four 8 control the to-be-ground crystal 13 to move away from the grinding tool.

[0045] Step five: the working motor 11 drives the to-be-ground crystal 13 to rotate.

[0046] Step six: the motor three 6 and the motor four 8 control the to-be-ground crystal 13 on the working motor 11 to contact the grinding surface of the grinding disc 3, and carry out the grinding processing of the adjacent cutting surface on the to-be-ground crystal 13.

[0047] Step seven: repeat steps four, five and six to grind the first circle of the continuous cutting surface on the to-be-ground crystal 13.

[0048] Step eight: the motor three 6 and the motor four 8 control the to-be-ground crystal 13 to move away from the grinding tool.

[0049] Step nine: repeating the above steps will have the following processing conditions:

[0050] Condition one: sequentially repeating steps two to eight above, grinding the second circle or even the third, fourth, etc. of the cutting surface on the to-be-ground crystal 13;

[0051] Condition two: sequentially repeating steps two to six above, and step eight, grinding the second or even the third, fourth, etc. of the cutting surface on the to-be-ground crystal 13;

[0052] Condition three: sequentially repeating steps two to six above, and step eight, and in step five, the working motor 11 does not drive the to-be-ground crystal 13 to rotate, but the rotation control motor 10 drives the working motor 11 to rotate, grinding the second or even the third, fourth, etc. of the cutting surface on the to-be-ground crystal 13;

[0053] Condition four: sequentially repeating steps two to six above, and step eight, and processing multiple cutting surfaces, wherein one or more cutting surfaces are processed, and in step five, the "working motor 11 drives the to-be-ground crystal 13 to rotate" is modified to "rotation control motor 10 drives working motor 11 to rotate", which is used for grinding the second or even the third, fourth, etc. of the cutting surface on the to-be-ground crystal 13.

[0054] As Figures 3-6As shown, the rack 1a is provided with guide rails 1c, the sliding frame 5 is slidably connected to the guide rails 1c through sliding blocks, and the motor 4 is fixed on the sliding frame 5. The driving shaft of the motor 4 is provided with meshing teeth 15, and one side of the guide rail 1c is provided with a rack 1c1 engaged with the meshing teeth 15. The sliding frame 5 is engaged with the meshing teeth 15 and the rack 1c1 to drive the sliding frame 5 to slide on the rack 1a for adjustment. In this embodiment, the guide rails 1c are provided in two groups, each group having two guide rails 1c, and the two groups of guide rails 1c are arranged on the two outer sides of the working shell 1b.

[0055] The sliding frame 5 is provided with a cross beam 5a above the mounting shell. The cross beam 5a is hollow and the motor 6 is fixed in the cross beam 5a. The motor 6 is connected with a lead screw 16 which is arranged in the same direction as the cross beam 5a. The sliding frame 2 is threadedly connected to the lead screw 16, and a sliding guide track is arranged between the sliding frame 2 and the cross beam 5a. The motor 6 can drive the sliding frame 2 to slide along the axial direction of the lead screw 16.

[0056] The motor 8 is fixed on the sliding frame 7, and the motor 8 is connected with a lead screw 17. The sliding frame 9 is threadedly connected to the lead screw 17, and the sliding frame 9 can slide along the Z-axis on the lead screw 17 under the drive of the motor 8. The rotary control motor 10 is fixed on one side of the sliding frame 9, and the rotary control motor 10 is usually located below the cross beam 5a. The driving shaft of the rotary control motor 10 is connected to a mounting bracket 14 which is located on the other side of the sliding frame 9. The working motor 11 is fixed on the mounting bracket 14.

[0057] In this embodiment, the cross beam 5a or the rack 1a is provided with a counterweight 18 which can slide along the Z-axis. The counterweight 18 is engaged with the sliding frame 9 through a chain transmission, and the sliding direction of the counterweight 18 is opposite to that of the sliding frame 9. The sliding frame 2, the sliding frame 9, the motor 8, the rotary control motor 10 and the working motor 11 are located on one side of the cross beam 5a, and the counterweight 18 is located on the other side of the cross beam 5a. The arrangement of the counterweight 18 can effectively balance the sliding frame 2 and the sliding frame 9, prevent the sliding frame 2 and the sliding frame 9 from driving the lead screw 16 to deform and affect the X-axis sliding, and balance the head of the grinding machine.

[0058] Because the crystal will generate heat and powder during grinding, a liquid guide pipe (not shown in the drawings) is usually arranged on the sliding frame 9 to guide the cooling liquid.

[0059] In order to avoid the influence of cooling liquid or powder on the use of the motor two 4, the guide rail 1c, the motor three 6, the motor four 8, the rotary control motor 10 and the working motor 11, the sliding frame one 5 is fixed with the shell one 19, the motor two 4 is arranged in the shell one 19 and fixed, and the shell one 19 is provided with a side opening, the side opening is arranged on the end face of the shell away from the sliding frame three 9, and the front and rear ends of the sliding frame one 5 are each fixed with the organ cover one 20 between the sliding frame one 5 and the rack 1a, and the organ cover one 20 covers the guide rail 1c.

[0060] In order to facilitate the assembly of the motor three 6 and the screw rod one 16, the front end of the cross beam 5a is provided with an opening, and the organ cover two 21 is arranged between the left and right sides of the sliding frame two 7 and the cross beam 5a, and the organ cover two 21 covers the internal structure in the cross beam 5a.

[0061] The sliding frame three 9 is covered with the cover shell 24, the cover shell 24 is provided with a lower opening, the lower end of the sliding frame three 9 extends out of the cover shell 24 for mounting the rotary control motor 10, and the rotary control motor 10 is covered with the shell two 22, and the shell two 22 is fixedly connected with the sliding frame three 9.

[0062] The mounting frame 14 is provided with the connecting part 14a fixedly connected with the driving shaft of the rotary control motor 10, and the spacing part 14b fixedly connected with the working motor 11, the driving shaft of the working motor 11 is arranged through the spacing part 14b, and the shell three 23 covering the working motor 11 is fixed on the spacing part 14b.

[0063] The clamp 12 is inserted between the driving shaft of the working motor 11 and fixed by screws, and the clamp 12 is connected between the end of the crystal to be ground 13 and the spacing part 14b of the mounting frame 14 with a spacing, the insertion structure adopts a non-circular structure, which can effectively avoid the deflection of the clamp 12, and the crystal to be ground 13 is usually fixedly connected with the clamp 12 by means of glue, preferably, the driving shaft can also be fixed by clamping the clamp 12 through the claw disc, and the crystal to be ground 13 can also be fixedly connected with the clamp 12 by means of magnetic attraction clamping.

[0064] As shown in Figures 1-4 The outer side of the rack 1a is fixed with the machine shell 1d, the machine shell 1d is provided with the control panel 1e for instructing the working of the motor one 2, the motor two 4, the motor three 6, the motor four 8, the rotary control motor 10 and the working motor 11, and the machine shell 1d is provided with the operation window 1d1 for disassembling the clamp 12.

[0065] The working shell 1b is provided with an opening, and the working shell 1b is provided with an installation cavity 1b1 and an avoiding cavity 1b2 which is lower than the bottom of the installation cavity 1b1, the bottom of the avoiding cavity 1b2 is provided with a drainage port 1b3, and the installation cavity 1b1 and the avoiding cavity 1b2 are arranged in sequence and communicate with each other, the grinding disc 3 is rotatably arranged in the installation cavity 1b1, the motor 2 is fixed on the frame 1a and drives the grinding disc 3 to rotate by a driving shaft or a belt, and preferably, the cavity wall of the avoiding cavity 1b2 is provided with an inclined surface for guiding the flow of the cooling liquid into the drainage port 1b3.

[0066] The bottom of the avoiding cavity 1b2 is lower than the bottom of the installation cavity 1b1, so that the working motor 11 does not touch the shell wall of the bottom of the working shell 1b when the crystal 13 to be ground is subjected to negative angle machining.

[0067] In order to improve the grinding precision and reduce the disassembly and assembly of the crystal 13 to be ground, the grinding disc 3 in the working shell 1b can include a rough grinding disc 3, a fine grinding disc 3 and a polishing grinding disc 3, the rough grinding disc 3, the fine grinding disc 3 and the polishing grinding disc 3 are arranged independently, or the polishing grinding disc 3 is arranged in a stacked manner between the rough grinding disc 3 and the fine grinding disc 3, and the outer diameter of the grinding disc 3 located at the upper position is smaller than the outer diameter of the grinding disc 3 located at the lower position.

[0068] The frame 1a, the shell 1d, the working shell 1b, the sliding frame 5, the sliding frame 7 and the sliding frame 9 can be composed by welding or screwing and assembling a plurality of sheet metal parts and pipes.

[0069] In order to ensure the stability of the crystal grinding machine during operation, at least four frame feet 25 are arranged at the lower portion of the frame 1a, the frame feet 25 contact the ground and can be threadedly adjusted in height.

[0070] In the description of the utility model, it should be explained that the terms "upper", "lower", "front", "rear", "inner", "outer" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship when the utility model product is usually placed, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model.

[0071] The multi-station high-precision numerical control crystal grinding machine provided by the utility model is described in detail, the principle and implementation mode of the utility model are described by applying specific examples in this paper, and the description of the above examples is only used to help understand the utility model and the core idea, it should be pointed out that, for ordinary skilled persons in the technical field, some improvements and modifications can be made to the utility model without departing from the principle of the utility model, and these improvements and modifications also fall within the protection scope of the claims of the utility model.

Claims

1. A multi-station high-precision numerical control crystal grinding machine, comprising a machine tool; characterized in that a grinding disc, a motor one capable of driving the grinding disc to rotate, and a sliding frame one capable of sliding in the Y direction are installed on the machine tool; an X-axis sliding frame two capable of sliding in the X direction is installed on the sliding frame one, and a Z-axis sliding frame three capable of sliding in the Z direction is installed on the sliding frame two; a rotary control motor is fixed on one side of the sliding frame three, and a work motor capable of installing a crystal to be ground is arranged on the other side, the rotary control motor can drive the work motor to rotate and control the rotation angle of the work motor; a grinding surface is arranged on the grinding disc, and the driving shaft axis of the work motor and the grinding surface can form a positive angle above the grinding surface or a negative angle below the grinding surface.

2. The multi-station high-precision numerical control crystal grinding machine according to claim 1, characterized in that, The driving shaft of the rotary control motor is fixedly connected with a mounting frame, and the work motor is fixed on the mounting frame.

3. The multi-station high-precision numerical control crystal grinding machine according to claim 2, characterized in that, The driving shaft of the work motor passes through the mounting frame, and a clamp is installed on the driving shaft of the work motor, and the crystal to be ground is fixed on the clamp.

4. The multi-station high-precision numerical control crystal grinding machine according to claim 3, characterized in that, The clamp is inserted and fixed between the driving shaft of the work motor, and the end of the crystal to be ground is spaced from the mounting frame.

5. The multi-station high-precision numerical control crystal grinding machine according to claim 4, characterized in that, The crystal to be ground is fixedly connected to the clamp by pasting or magnetic attraction clamping, and the outer size of the crystal to be ground is larger than the outer size of the clamp.

6. The multi-station high-precision numerical control crystal grinding machine according to claim 1, characterized in that, The grinding disc includes a rough grinding disc, a fine grinding disc and a polishing disc, and the three grinding discs are independently or stacked arranged.

7. The multi-station high-precision numerical control crystal grinding machine according to claim 1, characterized in that, The machine tool includes a machine frame and a working shell with an opening on the machine frame, the working shell is provided with a mounting cavity and an avoidance cavity with a drainage port, the grinding disc is arranged in the mounting cavity, and the upper end surface of the grinding disc or the mounting cavity is higher than the upper end surface of the avoidance cavity.

8. The multi-station high-precision numerical control crystal grinding machine according to claim 1, characterized in that, A motor two is fixed on the sliding frame one, a guide rail is arranged on the machine frame, and the driving shaft of the motor two is driven by the structure transmission through the meshing of the meshing teeth and the rack.

9. The multi-station high-precision numerical control crystal grinding machine according to claim 8, characterized in that, A motor three is fixed on the sliding frame one, and a motor four is fixed on the sliding frame two, the motor three drives the sliding of the sliding frame two through a screw rod or a chain, and the motor four drives the sliding of the sliding frame three through a screw rod or a chain.

10. The multi-station high-precision numerical control crystal grinding machine according to claim 9, characterized in that, The sliding frame one is fixed with an organ cover one shielding the guide rail, and the sliding frame one and the sliding frame two are fixed with an organ cover two shielding the motor three.

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