Grinding center and grinding method

Abstract

The invention relates to a grinding center and a grinding method. The grinding center comprises a lathe bed, a workbench, a working rotary table, a grinding wheel and a vertical moving mechanism. The working table is connected with the lathe bed, and the working rotary table is arranged on the surface of the working table and used for containing a to-be-ground piece. And through rotation of the working rotary table, grinding machining of different parts of the workpiece can be achieved. The grinding wheel is in contact with the surface of the workpiece to be ground through high-speed rotation, and the surface of the workpiece is cut and ground through abrasive particles on the grinding wheel. And the vertical moving mechanism is arranged on the lathe bed and is used for driving the grinding wheel to move in a three-dimensional space and driving the grinding wheel to grind a to-be-ground part fixed on the working turntable. By means of the mechanism, the grinding wheel can move in the three-dimensional space, and comprehensive and careful grinding machining can be conducted on to-be-ground pieces in various complex shapes. And the vertical moving mechanism can provide power for the grinding wheel, so that the grinding wheel machines the to-be-ground part at a proper rotating speed and grinding force, and the machining quality is ensured.

Description

Technical Field

[0001] The present application relates to the field of grinding equipment, and particularly to a grinding center and a grinding method. Background Art

[0002] With the development of mechanical processing grinding equipment, most vertical grinding machines on the market are three-axis or four-axis linkage. There are many limitations when such traditional vertical grinding machines process complex parts. At the same time, due to the characteristics of its own structure and movement mode, a horizontal grinding machine cannot process arc end teeth, which greatly limits its application in some industries with requirements for end tooth processing.

[0003] Although traditional three-axis or four-axis linkage vertical grinding machines are superior to horizontal grinding machines in some aspects, they cannot process straight tooth end teeth, and when processing arc end teeth, the accuracy is difficult to meet the current high-precision processing requirements. Summary of the Invention

[0004] Based on this, it is necessary to provide a grinding center and a grinding method for solving the problems of grinding machines.

[0005] A grinding center includes:

[0006] A bed;

[0007] A workbench, connected to the bed;

[0008] A work turntable, arranged on the surface of the workbench for placing the workpiece to be ground;

[0009] A grinding wheel;

[0010] A vertical moving mechanism, arranged on the bed for driving the grinding wheel to move in a three-dimensional space and driving the grinding wheel to grind the workpiece to be ground.

[0011] In one embodiment, a first reference line and a second reference line are provided on the surface of the bed; the workbench is located on the extension line of the second reference line;

[0012] The vertical moving mechanism includes a rotating shaft, a moving base, a first sliding seat and a second sliding seat;

[0013] The first sliding seat is movably arranged on the surface of the bed and can move along the length direction of the first reference line;

[0014] The second sliding seat is movably arranged on the first sliding seat and can move parallel to the length direction of the second reference line;

[0015] The moving base is movably arranged on the second sliding seat, and the moving base can move up and down along the vertical direction;

[0016] The rotating shaft is rotatably connected to the moving base, and the grinding wheel is assembled at the end of the rotating shaft.

[0017] In one embodiment, a first guide rail, a first driving component, and a first slider are arranged on the surface of the bed body;

[0018] The first guide rail is arranged on the surface of the bed body and is parallel to the first reference line; the first driving component is arranged on the surface of the bed body, and the first slider is movably arranged on the first guide rail;

[0019] The first sliding seat is assembled on the first slider, and the movable end of the first driving component is used to drive the first sliding seat to move.

[0020] In one embodiment, a second guide rail, a second driving component, and a second slider are arranged on the first sliding seat;

[0021] The second guide rail is parallel to the second reference line;

[0022] The second slider is movably arranged on the second guide rail;

[0023] The second sliding seat is assembled on the second slider, and the movable end of the second driving component is used to drive the second sliding seat to move.

[0024] In one embodiment, a third guide rail, a third driving component, and a third slider are arranged on the second sliding seat;

[0025] The third guide rail is arranged on the second sliding seat in the vertical direction, and the third slider is movably arranged on the third guide rail;

[0026] The movable base is arranged on the third slider;

[0027] The third driving component is arranged on the second sliding seat, and the movable end of the third driving component is used to drive the movable base to move.

[0028] In one embodiment, the first driving component includes: a first driving motor, a first ball screw, and a first screw nut;

[0029] The first ball screw is assembled on the surface of the bed body through a bearing seat, and the length direction of the first ball screw is parallel to the first reference line;

[0030] The first screw nut is sleeved outside the first ball screw, and the first screw nut is connected to the first sliding seat; the first driving motor is used to drive the first ball screw to rotate, so as to drive the first screw nut to move along the first ball screw;

[0031] and / or,

[0032] The second driving component includes: two second driving motors, two second ball screws, and two second screw nuts;

[0033] There are two second guide rails correspondingly arranged on the surface of the first slide block. Two second ball screws are respectively assembled on the first slide block through bearing blocks, and the length directions of the two second ball screws are parallel to the second reference line;

[0034] Two second lead screw nuts are respectively sleeved outside the second ball screws, and both of the two second lead screw nuts are connected to the second slide block;

[0035] Two second driving motors respectively drive the second ball screws to rotate through synchronous belt pulleys, so that the second lead screw nuts move along the second ball screws;

[0036] and / or

[0037] The third driving component includes: a third driving motor, a third ball screw and a third lead screw nut;

[0038] The third ball screw is arranged on the second slide block, and the length direction of the third ball screw is consistent with the vertical direction; the third lead screw nut is sleeved on the third ball screw, and the movable base is connected to the third lead screw nut;

[0039] The third driving motor is used to drive the third ball screw to rotate, so that the third lead screw nut moves along the third ball screw.

[0040] In one embodiment, there are at least two first sliders, and at least one of the first sliders is set as a clamping slider; the clamping slider can be clamped on the first guide rail to position the first slide block;

[0041] and / or

[0042] There are at least two second sliders, and at least one of the second sliders is set as a clamping slider; the clamping slider can be clamped on the second guide rail to position the second slide block;

[0043] and / or

[0044] There are at least two third sliders, and at least one of the third sliders is set as a clamping slider; the clamping slider can be clamped on the third guide rail to position the movable base.

[0045] In one embodiment, a grating scale is assembled on the side of the first guide rail;

[0046] and / or, a grating scale is assembled on the side of the second guide rail;

[0047] and / or, a grating scale is assembled on the side of the third guide rail.

[0048] The rotating shaft is connected to the movable base through a rotating connection mechanism, and the rotating connection mechanism can drive the rotating shaft to rotate along its own axis; and the rotating connection mechanism can adjust the orientation direction of the rotating shaft on the movable base.

[0049] A grinding method, applicable to the grinding center of any of the above, the method comprising:

[0050] Determine the reference plane where the axis of the workpiece to be ground is located;

[0051] Move the grinding wheel through a vertical moving mechanism until the central axis of the grinding wheel is within the reference plane.

[0052] The above-mentioned grinding center includes: a bed, a workbench, a work turntable, a grinding wheel and a vertical moving mechanism. The workbench is connected to the bed, and the work turntable is arranged on the surface of the workbench. The work turntable is used to place the workpiece to be ground. The work turntable can rotate and position according to the processing requirements, and can accurately adjust the workpiece to be ground to the appropriate position and angle, so as to meet the processing requirements of workpieces to be ground with different shapes and sizes. Through the rotation of the work turntable, grinding processing of different parts of the workpiece can also be realized. The grinding wheel will contact the surface of the workpiece to be ground through high-speed rotation, and use the abrasive grains on the grinding wheel to cut and grind the surface of the workpiece, so as to remove the excess material on the surface of the workpiece and achieve the required dimensional accuracy and surface quality. The vertical moving mechanism is arranged on the bed, and its function is to drive the grinding wheel to move in three-dimensional space and drive the grinding wheel to grind the workpiece to be ground fixed on the work turntable. This mechanism can realize the precise movement and positioning of the grinding wheel in the X, Y, and Z coordinate axes directions. Through this three-dimensional space movement ability, comprehensive and detailed grinding processing can be carried out on various complex-shaped workpieces to be ground. At the same time, the vertical moving mechanism can also provide sufficient power for the grinding wheel, so that it can process the workpiece to be ground at an appropriate rotational speed and grinding force, ensuring the smooth progress of the grinding process and the stability of the processing quality. Description of the Drawings

[0053] Figure 1 Schematic structural diagram of the cutting center provided by the embodiment of the present application in the first implementation state.

[0054] Figure 2 For Figure 1 Side view.

[0055] Figure 3 Schematic assembly diagram of the bed and the workbench provided by the embodiment of the present application.

[0056] Figure 4 Schematic assembly diagram of the first slide and the bed provided by the embodiment of the present application.

[0057] Figure 5 Schematic structural diagram of the first slide provided by the embodiment of the present application.

[0058] Figure 6 For Figure 5 Top view.

[0059] Figure 7 Schematic structural diagram of the second sliding seat provided by the embodiment of the present application.

[0060] Figure 8 Schematic structural diagram of the cutting center provided by the embodiment of the present application from another perspective.

[0061] Figure 9 Partial assembly schematic diagram of the second driving component and the second sliding seat provided by the embodiment of the present application.

[0062] Figure 10 Assembly schematic diagram of the first sliding seat and the second sliding seat provided by the embodiment of the present application.

[0063] Figure 11 Schematic structural diagram of the cutting center provided by the embodiment of the present application in the second implementation state.

[0064] Figure 12 Schematic structural diagram of the cutting center provided by the embodiment of the present application in the third implementation state.

[0065] Figure 13 Schematic diagram of the relative position between the grinding wheel and the workpiece to be ground during grinding provided by the embodiment of the present application.

[0066] Reference numerals in the drawings:

[0067] 1000, bed; 1001, tool magazine; 1002, grinding wheel dressing device;

[0068] 2000, workbench; 2001, work turntable; 2002, workpiece to be ground;

[0069] 3000, grinding wheel;

[0070] 4000, rotating shaft;

[0071] 5000, movable base; 5001, rotating connection mechanism;

[0072] 6000, first sliding seat; 6001, first guide rail; 6002, first slider;

[0073] 6011, first driving motor; 6012, first ball screw; 6013, first screw nut;

[0074] 7000, second sliding seat; 7001, second guide rail; 7002, second slider;

[0075] 7011, second driving motor; 7012, second ball screw; 7013, second screw nut;

[0076] 8001. Third guide rail; 8002. Third slider;

[0077] 8011. Third drive motor; 8012. Third ball screw; 8013. Third screw nut;

[0078] 9000. Grating scale. Detailed implementation manners

[0079] To make the above objects, features, and advantages of the present application more obvious and understandable, the following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. Many specific details are set forth in the following description to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application. Therefore, the present application is not limited by the specific embodiments disclosed below.

[0080] In the description of the present application, it should be understood that if there are terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated by these terms is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation on the present application.

[0081] In addition, if there are terms such as "first" and "second", these terms are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present application, if there is a term "plural", the meaning of "plural" is at least two, such as two, three, etc., unless otherwise specifically defined.

[0082] In the present application, unless otherwise clearly specified and limited, if there are terms such as "installation", "connection", "connection", "fixation", etc., these terms should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0083] In this application, unless otherwise clearly specified and defined, when a first feature is described as being "on" or "under" a second feature or the like, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply indicates that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply indicates that the first feature has a lower horizontal height than the second feature.

[0084] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or there may also be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in this application are only for the purpose of illustration and do not represent the only implementation.

[0085] Refer to Figure 1 and Figure 2 , Figure 1 is a schematic structural diagram of the cutting center provided by the embodiment of the present application in the first implementation state, Figure 2 is Figure 1 a side view of: A grinding center shown includes: a bed 1000, a workbench 2000, a work turntable 2001, a grinding wheel 3000 and a vertical moving mechanism.

[0086] The workbench 2000 is connected to the bed 1000, and the work turntable 2001 is disposed on the surface of the workbench 2000. The work turntable 2001 is used to place the workpiece to be ground 2002. The work turntable 2001 can be rotated and positioned according to the processing requirements to accurately adjust the workpiece to be ground 2002 to the appropriate position and angle, so as to meet the processing requirements of workpieces to be ground 2002 with different shapes and sizes. Through the rotation of the work turntable 2001, grinding processing of different positions of the workpiece to be ground 2002 can also be achieved.

[0087] The grinding wheel 3000 will contact the surface of the workpiece to be ground 2002 through high-speed rotation, and use the abrasive grains on the grinding wheel 3000 to cut and grind the surface of the workpiece, so as to remove the excess material on the surface of the workpiece and achieve the required dimensional accuracy and surface quality. Parameters such as the material, grain size and shape of the grinding wheel 3000 will be selected and configured according to different processing requirements.

[0088] The vertical moving mechanism is arranged on the bed 1000. Its function is to drive the grinding wheel 3000 to move in a three-dimensional space and drive the grinding wheel 3000 to grind the workpiece to be ground 2002 fixed on the working turntable 2001. This mechanism can achieve precise movement and positioning of the grinding wheel 3000 in the X, Y, and Z coordinate axes directions. At the same time, the vertical moving mechanism can also provide sufficient power for the grinding wheel 3000, enabling it to process the workpiece to be ground 2002 at an appropriate rotational speed and grinding force, ensuring the smooth progress of the grinding process and the stability of the processing quality. The workpiece to be ground 2002 can include arc end teeth, straight teeth end teeth, etc.

[0089] The vertical moving mechanism endows the grinding wheel 3000 with the ability to move omnidirectionally in a three-dimensional space. Before starting the grinding process, the vertical moving mechanism controls the movement of the grinding wheel 3000 according to the pre-set program instructions, so as to ensure that the grinding wheel 3000 can quickly and accurately position to the starting processing position of the workpiece to be ground 2002. Whether it is a complex curved surface contour or a precise hole system processing, the vertical moving mechanism can accurately deliver the grinding wheel 3000 to the target point by virtue of its positioning function. Once the positioning is completed, the vertical moving mechanism immediately switches to the grinding drive mode. The vertical moving mechanism can drive the grinding wheel 3000 to rotate at a high speed through the high-precision rotating shaft 4000 under the strong drive of the motor. The output power and rotational speed of the motor can be flexibly adjusted according to the material of the workpiece to be ground 2002 and the requirements of the grinding process, ensuring that the grinding wheel 3000 contacts the surface of the workpiece to be ground 2002 at the best grinding linear speed. At the same time, the working turntable 2001 also rotates the workpiece to be ground 2002 to different angles in a timely manner according to the needs of the grinding process. For example, when processing the workpiece to be ground 2002 with arc end teeth or straight teeth end teeth, the working turntable 2001 can accurately rotate, so that the to-be-ground tooth surfaces are successively aligned with the grinding wheel 3000, and cooperate with the vertical moving mechanism to complete the comprehensive grinding processing of each part of the workpiece to be ground 2002. During the entire grinding process, the vertical moving mechanism continuously monitors and adjusts the position, rotational speed, and grinding force of the grinding wheel 3000, ensuring the efficient and stable progress of the grinding operation, and finally achieving the high-precision and high-quality processing goal of the workpiece to be ground 2002. Through this three-dimensional space moving ability, comprehensive and detailed grinding processing can be carried out on various complex-shaped workpieces to be ground 2002.

[0090] In some embodiments of the present application, refer to Figure 3 and Figure 4 , Figure 3 is the assembly schematic diagram of the bed and the workbench provided by the embodiment of the present application. Figure 4The figure is a schematic assembly diagram of the first slide and the bed body provided by the embodiment of the present application. A first reference line and a second reference line are set within the surface of the bed body 1000; the first reference line and the second reference line are virtual lines set for clearly describing the relative position relationship of each structure. In some embodiments, the first reference line and the second reference line are perpendicular to each other in the plane; and the length direction of the first reference line coincides with the X-axis, and the length direction of the second reference line coincides with the Y-axis, so as to move the grinding wheel 3000 based on this as a reference.

[0091] The workbench 2000 is located on the extension line of the second reference line to determine the relative position between the workbench 2000 and the bed body 1000. The first slide 6000 is movably installed on the surface of the bed body 1000, and the first slide 6000 can move along the length direction of the first reference line. The second slide 7000 is installed on the first slide 6000, and the second slide 7000 can move parallel to the length direction of the second reference line.

[0092] The movable base 5000 is installed on the second slide 7000, and the movable base 5000 can achieve stable lifting in the vertical direction. On the above premise, the rotating shaft 4000 is rotatably connected to the movable base 5000, and the grinding wheel 3000 is assembled at the end of the rotating shaft 4000. When the rotating shaft 4000 rotates, it can drive the grinding wheel 3000 to perform grinding. The first slide 6000, the second slide 7000 and the movable base 5000 are linked and coordinated to build a movement system in the three-dimensional plane, enriching the position adjustment range of the grinding wheel 3000.

[0093] In order to accurately describe the spatial positions and movement trajectories of each component, two virtual lines, the first reference line and the second reference line, are set. They are not actual physical lines, but references for constructing a three-dimensional space reference. The first reference line and the second reference line are perpendicular to each other and jointly construct a plane coordinate system. In this coordinate system, the length direction of the first reference line is regarded as the X-axis direction, and the length direction of the second reference line is regarded as the Y-axis direction. At the same time, the Z-axis direction always remains vertical and is perpendicular to the X-axis and the Y-axis, thus forming a complete three-dimensional rectangular coordinate system. This coordinate system becomes the basic framework for the spatial positioning and movement control of each component of the grinding center.

[0094] Taking the movement of the grinding wheel 3000 as an example, before starting the grinding process, the vertical moving mechanism controls the grinding wheel to move precisely along the X, Y, and Z coordinate axes according to the pre-set program instructions. Among them, the movement along the first reference line (i.e., the X-axis direction) and the second reference line (i.e., the Y-axis direction) can enable the grinding wheel to achieve precise positioning on the horizontal plane. And the movement in the vertical direction (Z-axis direction) further expands the spatial movement range of the grinding wheel, enabling it to adapt to the processing requirements of workpieces to be ground at different height positions.

[0095] The workbench 2000 is located on the extension line of the second reference line, which clarifies the position of the workbench in the plane coordinate system constructed by the first and second reference lines, and further determines its relative position with the bed body 1000. Similarly, the first slide 6000 is movably installed on the surface of the bed body 1000 and can move along the length direction of the first reference line (X-axis direction); the second slide 7000 is installed on the first slide 6000 and can move parallel to the length direction of the second reference line (Y-axis direction).

[0096] In some embodiments of the present application, the first guide rail 6001 is provided on the surface of the bed body 1000, and the length direction of the first guide rail 6001 is parallel to the first reference line. This setting provides an accurate guiding path for the movement of the first slider 6002, ensuring that the first slider 6002 and the first slide 6000 assembled thereon can move linearly along the direction of the first reference line, laying a foundation for realizing the position adjustment of the grinding wheel 3000 in the X-axis direction.

[0097] The first driving component is provided on the surface of the bed body 1000, and the movable end of the first driving component is connected to the first slide 6000. The first driving component can be a motor, a hydraulic cylinder or a combination of other devices capable of providing power output. Through its internal transmission mechanism, such as a lead screw nut mechanism, a gear rack mechanism, etc., the power is converted into a linear motion of the first slide 6000 on the first guide rail 6001, thereby accurately controlling the moving speed and position of the first slide 6000.

[0098] The first slider 6002 is movably arranged on the first guide rail 6001, which plays a role in connecting the first guide rail 6001 and the first slide 6000. Usually, a high-precision sliding or rolling fit is adopted between the first slider 6002 and the first guide rail 6001 to reduce the frictional resistance and improve the smoothness and accuracy of the movement. The first slide 6000 is assembled on the first slider 6002, so that the first slide 6000 can move along with the first slider 6002 on the first guide rail 6001.

[0099] By driving the first slide 6000 to move along the first guide rail 6001 through the first driving component, the position of the grinding wheel 3000 in the direction of the first reference line (which can be regarded as the X-axis direction) can be accurately adjusted, meeting the processing position requirements of different workpieces to be ground 2002 in this direction, improving the processing precision and accuracy, and ensuring that different parts of the arc end teeth can be accurately ground.

[0100] For the machining of arc-shaped end teeth: The first slide 6000 moves parallel to the first reference line (which can be regarded as the X direction), and the movable base 5000 moves parallel to the vertical direction (which can be regarded as the Z direction) to achieve synchronous linkage for feeding. The work turntable 2001 rotates by an angle to achieve the switching of tooth profile machining at different angular positions of the workpiece. For the machining of straight-tooth end teeth, the second slide 7000 moves parallel to the second reference line (which can be regarded as the Y direction), and the movable base 5000 moves parallel to the vertical direction (which can be regarded as the Z direction) to achieve synchronous linkage for feeding. The work turntable 2001 rotates by an angle to achieve the switching of tooth profile machining at different angular positions of the workpiece. For the machining of the complex three-dimensional curved surface of a turbine engine blade, the first slide 6000 moves parallel to the first reference line (which can be regarded as the X direction), the second slide 7000 moves parallel to the second reference line (which can be regarded as the Y direction), the movable base 5000 moves parallel to the vertical direction (which can be regarded as the Z direction), the axis of the work turntable 2001 rotates in the vertical direction, and the grinding wheel 3000 and the rotating shaft 4000 rotate together around the horizontal axis, so as to achieve five-axis synchronous linkage feeding for feeding.

[0101] Among them, in some embodiments, the work turntable 2001 has a C axis (not shown in the figure, which is a virtual axis) arranged along the vertical direction. The C axis extends along the Z direction, and the direction of rotation around the C axis is set as the C direction. The work turntable 2001 can rotate along Figure 1 the C direction in

[0102] Similarly, in some embodiments, the connecting position of the rotating shaft 4000 on the movable base 5000 has a B axis (not shown in the figure, which is a virtual axis) arranged along the horizontal direction. The B axis extends along the Y direction, and the direction of rotation around the B axis is set as the B direction. The grinding wheel 3000 and the rotating shaft 4000 can rotate together along Figure 1 the B direction in

[0103] Among them, it can be foreseen that the rotation directions opposite to the C direction and the B direction respectively are also applicable to the above structures.

[0104] The first slide 6000 can move along the first reference line. Combined with the movement of the second slide 7000 parallel to the second reference line and the vertical movement of the movable base 5000, a movement system in the three-dimensional plane is jointly constructed, greatly enriching the position adjustment range of the grinding wheel 3000, enabling the grinding center to adapt to the machining of various complex-shaped workpieces to be ground 2002, and improving the flexibility and adaptability of the machining.

[0105] The first guide rail 6001 provides stable support and guidance for the movement of the first slider 6002 and the first slide base 6000, ensuring the smoothness of the first slide base 6000 during movement. Furthermore, it ensures the position stability of the grinding wheel 3000 during the machining process, which is beneficial to improving the quality and surface finish of the grinding process and reducing machining errors caused by equipment vibration or displacement.

[0106] Precise position adjustment and stable movement contribute to improving the efficiency of the grinding process, reducing the extension of machining time and the increase in the scrap rate caused by inaccurate position adjustment or unstable equipment, enabling the grinding center to complete the machining tasks of various workpieces to be ground 2002 more quickly and efficiently.

[0107] In some embodiments of the present application, refer to Figure 5 and Figure 6 , Figure 5 which is a schematic structural diagram of the first slide base provided by the embodiments of the present application. Figure 6 is Figure 5 a top view of. As shown on the first slide base 6000, the second guide rail 7001 is installed and fixed in a direction parallel to the second reference line. The second guide rail 7001 serves as a guiding structure to provide a precise trajectory for the movement of subsequent components. The second slider 7002 is movably arranged on the second guide rail 7001, enabling the second slider 7002 to smoothly move in the direction defined by the second guide rail 7001. Then, the second slide base 7000 is assembled on the second slider 7002 to ensure a firm connection between the two, so that the movement of the second slider 7002 can drive the second slide base 7000 to move synchronously. Finally, the second driving component is installed on the first slide base 6000, and its movable end is connected to the second slide base 7000. Through the power output and transmission mechanism inside the second driving component, such as a motor driving a lead screw nut mechanism, etc., the driving control of the movement of the second slide base 7000 is realized.

[0108] Driving the second slide base 7000 to move along the second guide rail 7001 through the second driving component can accurately adjust the position of the grinding wheel 3000 in the direction parallel to the second reference line (which can be regarded as the Y-axis direction), meet the machining position requirements of different workpieces to be ground 2002 in this direction, improve the machining accuracy and precision, and ensure accurate grinding machining of different shapes and sizes of workpieces to be ground 2002, such as arc end teeth and straight tooth end teeth.

[0109] The movement of the second slide 7000 cooperates with the movement of the first slide 6000 along the first reference line and the vertical movement of the movable base 5000 to jointly construct a movement system in three-dimensional space, expanding the position adjustment range of the grinding wheel 3000 in space, enabling the grinding center to comprehensively process workpieces 2002 to be ground with various complex shapes, enhancing the flexibility and adaptability of processing, and improving the applicable range of the equipment.

[0110] The second guide rail 7001 provides stable support and guidance for the movement of the second slider 7002 and the second slide 7000, ensuring the smoothness of the second slide 7000 during movement, and further ensuring the stable position of the grinding wheel 3000 during processing, which is beneficial to improving the quality and surface finish of grinding processing, reducing processing errors caused by unstable equipment movement, and increasing the yield rate of products.

[0111] In some embodiments of the present application, refer to Figure 7 , Figure 7 which is a schematic structural diagram of the second slide provided by the embodiment of the present application. As shown on the second slide 7000, a third guide rail 8001 is fixedly installed along the vertical direction. The third slider 8002 is movably installed on the third guide rail 8001, enabling the third slider 8002 to smoothly move up and down along the third guide rail 8001 in the vertical direction. Then, the movable base 5000 is firmly arranged on the third slider 8002, so that when the third slider 8002 moves in the vertical direction, the movable base 5000 will move synchronously. The third driving component is arranged on the second slide 7000, and the movable end of the third driving component is connected to the movable base 5000. Through the power conversion and transmission device inside the third driving component, such as a motor driving a ball screw nut pair, the rotational motion is converted into a linear motion, thereby driving the movable base 5000 to move precisely in the vertical direction. In terms of processing flexibility and range, the vertical movement of the movable base 5000 is combined with the movement of the first slide 6000 along the first reference line and the movement of the second slide 7000 along the second reference line to construct a complete three-dimensional space motion system. This enables the grinding wheel 3000 to freely adjust its position in three-dimensional space and be able to perform all-round processing on workpieces 2002 to be ground with various shapes, sizes, and structures, greatly expanding the processing capacity and applicable range of the grinding center and meeting the processing tasks with different industries and different requirements.

[0112] In some embodiments of the present application, refer to the attached drawings of the specification Figures 8 - 10 , Figure 8 which is a schematic structural diagram of the cutting center provided by the embodiment of the present application from another perspective. Figure 9 which is a partial assembly schematic diagram of the second driving component cooperating with the second slide provided by the embodiment of the present application. Figure 10The figure is an assembly schematic diagram of the first sliding seat and the second sliding seat provided by the embodiments of the present application. As shown on the surface of the bed 1000, the first ball screw 6012 is installed and fixed through a bearing block to ensure that the length direction of the first ball screw 6012 is parallel to the first reference line. The first screw nut 6013 is sleeved outside the first ball screw 6012, and then the first screw nut 6013 is connected to the first sliding seat 6000. The first driving motor 6011 is installed at a suitable position, and its output shaft is connected to the first ball screw 6012. When the first driving motor 6011 operates, it drives the first ball screw 6012 to rotate.

[0113] On the surface of the first sliding seat 6000, two second guide rails 7001 are correspondingly arranged. Two second ball screws 7012 are respectively installed on the first sliding seat 6000 through bearing blocks, ensuring that the length directions of the second ball screws 7012 are both parallel to the second reference line. Two second screw nuts 7013 are respectively sleeved outside the corresponding second ball screws 7012, and these two second screw nuts 7013 are both connected to the second sliding seat 7000. Two second driving motors 7011 are respectively connected to the second ball screws 7012 through synchronous belt pulleys. When the second driving motors 7011 are started, the second ball screws 7012 are driven to rotate by means of the transmission of the synchronous belt pulleys.

[0114] On the second sliding seat 7000, a third ball screw 8012 is arranged so that its length direction is consistent with the vertical direction. The third screw nut 8013 is sleeved on the third ball screw 8012, and the movable base 5000 is connected to the third screw nut 8013. The third driving motor 8011 is installed at a suitable position, and its output shaft is connected to the third ball screw 8012. When the third driving motor 8011 operates, it drives the third ball screw 8012 to rotate.

[0115] The cooperation between the ball screw and the screw nut can accurately convert the rotational motion of the motor into a linear motion, providing high-precision positioning control for the movement of the sliding seat and the movable base 5000. Whether it is the movement of the first sliding seat 6000 along the first reference line, or the movement of the second sliding seat 7000 along the second reference line and the movement of the movable base 5000 in the vertical direction, high-precision position adjustment can be achieved, meeting the requirements for high-precision machining of the workpiece to be ground 2002, and ensuring the accurate dimensions of the machined workpieces such as arc end teeth and straight-tooth end teeth. The three driving components cooperate with each other to respectively control the movements of the first sliding seat 6000, the second sliding seat 7000 and the movable base 5000, jointly constructing a three-dimensional space motion system, enabling the grinding wheel 3000 to move flexibly in the three-dimensional space, so that various complex-shaped workpieces to be ground 2002 can be processed in all directions and at multiple angles, greatly expanding the processing capacity and application range of the grinding center.

[0116] In some embodiments of the present application, in the connection between the first slide 6000 and the machine bed 1000, at least one first slider 6002 is designed as a clamping slider. This clamping slider has a special structure, usually composed of movable jaws or similar clamping devices, and is installed at the position where the bottom of the first slide 6000 contacts the first guide rail 6001. When it is necessary to position the first slide 6000, through an external control signal, such as the power provided by a hydraulic system or a pneumatic system, the jaws of the clamping slider are closed to tightly grip the first guide rail 6001, thereby restricting the movement of the first slide 6000 on the first guide rail 6001.

[0117] Similarly, in the connection between the second slide 7000 and the first slide 6000, at least one second slider 7002 is set as a clamping slider. It is installed at the part where the second slide 7000 contacts the second guide rail 7001. Similarly, with the power source controlled externally, when it is necessary to fix the second slide 7000, the clamping mechanism of the clamping slider acts to tightly clamp the second guide rail 7001 to achieve the positioning of the second slide 7000.

[0118] In the connection between the movable base 5000 and the second slide 7000, at least one third slider 8002 is installed as a clamping slider at the place where the movable base 5000 contacts the third guide rail 8001. When it is necessary to stop the movable base 5000 at a certain position, by using an externally controlled method, the clamping slider clamps the third guide rail 8001, thereby positioning the movable base 5000.

[0119] From the aspect of positioning accuracy, the setting of the clamping slider can achieve precise position locking of the slide and the movable base 5000. In the grinding process, accurate positioning is the key to ensuring the machining accuracy. For example, when grinding the arc end teeth and straight end teeth, only by ensuring that the slide and the movable base 5000 where the grinding wheel 3000 is located are in the precise position can the dimensional accuracy and shape accuracy of grinding be guaranteed. The clamping slider can quickly fix the slide after it moves to the predetermined position, avoiding machining errors caused by tiny displacements.

[0120] In terms of machining stability, the clamping slider enhances the rigidity of the entire motion system. When the slide and the movable base 5000 are fixed by the clamping slider, they will not be displaced due to external forces such as cutting forces and vibrations during the machining process. This is crucial for ensuring the stability of the grinding process, can effectively reduce vibrations and deformations during the machining process, improve the surface finish of the machining, and ensure the stability of the machining quality.

[0121] From the perspective of equipment maintenance, the clamping slider shares the stress on the guide rail and the lead screw. During the machining process, if the carriage is not effectively fixed, the guide rail and the lead screw will bear a large external force impact, which is likely to cause wear and damage. The clamping slider can bear most of the external forces during machining, protect the guide rail and the lead screw, extend the service life of the equipment, and reduce the equipment maintenance cost.

[0122] In terms of operation convenience, the control of the clamping slider is relatively simple. By controlling its clamping and loosening through an external power source, the operator can quickly position and adjust the carriage and the movable base 5000 according to the machining requirements, improving the machining efficiency and making the entire grinding process more convenient and efficient.

[0123] In some embodiments of the present application, in order to achieve precise measurement and feedback of the moving positions of the first carriage 6000, the second carriage 7000, and the movable base 5000, a grating scale 9000 is assembled on the side of the guide rail. On the side of the first guide rail 6001, the grating scale 9000 is installed along the length direction of the guide rail to be parallel to the first reference line. Through a professional installation fixture, it is ensured that the grating scale 9000 is closely attached to the first guide rail 6001 and maintains parallelism, and the signal line is connected to the control system of the machine tool body 1000. The grating scale 9000 is also installed on the side of the second guide rail 7001 to be parallel to the second reference line, and it is firmly fixed on the side of the guide rail by an adapted installation structure to ensure measurement accuracy and complete the electrical connection to achieve signal transmission. The grating scale 9000 is also assembled on the side of the third guide rail 8001 and is closely installed in the vertical direction with the third guide rail 8001. With the help of a specific installation device, its perpendicularity and stability are ensured, and the signal line is connected and accessed to the control system. By assembling the grating scale 9000 on the side of each guide rail, the position information of each carriage and the movable base 5000 can be obtained in real time and accurately, providing strong support for the high-precision control of the grinding process. The grating scale 9000 can accurately measure the displacement of the carriage or the movable base 5000 in the corresponding guide rail direction, provide accurate position feedback for the motion control of the machine tool body 1000, contribute to achieving high-precision machining and positioning, and can be accurate to the micron level or even higher precision levels.

[0124] In some embodiments, in the structural system of this grinding center, the design of a roller guide clamping slider with two groups of lead screws and an absolute grating has many remarkable advantages.

[0125] Among the first driving component, the second driving component, and the third driving component, two sets of lead screws work together, greatly improving the rigidity of the transmission shaft. Taking the second driving component as an example, two second ball screws 7012 work together. When driving the second slide 7000 to move along the second reference line, compared with a single lead screw, it can better bear the load and resist external force interference, ensuring the stability and accuracy of the movement of the second slide 7000, which is crucial for grinding processes that require high-precision positioning, guaranteeing the precise machining of different parts of the workpiece to be ground 2002. Whether it is the arc end teeth or the straight end teeth, they can be machined more precisely.

[0126] The use of a synchronous belt drive also plays an important role. In the second driving component, two second driving motors 7011 respectively drive the second ball screws 7012 to rotate through synchronous belt pulleys. The synchronous belt has good flexibility and buffering performance, which can effectively reduce the vibration of the motor shaft from being transmitted to the ball screw. During the operation of the motor, it is inevitable to generate a certain amount of vibration. If it is directly transmitted to the lead screw, it may affect the smooth rotation of the lead screw and the movement accuracy of the slide. The existence of the synchronous belt is like a buffer pad, absorbing and weakening the vibration of the motor shaft, enabling the second ball screw 7012 to rotate more smoothly, thereby ensuring the smooth movement of the second slide 7000, and ultimately improving the quality of the grinding process and reducing the machining errors caused by vibration.

[0127] During machining, the design of clamping the slide by hydraulic pressure on the guide rail further enhances the performance of the entire system. When grinding is carried out, the hydraulic system is activated, and the clamping slide tightly clamps the guide rail. This clamping method enhances the axial rigidity, preventing the slide from being displaced or shaken easily during the machining process. At the same time, it also protects the lead screw because the stable movement of the slide reduces the additional stress and impact borne by the lead screw. This not only improves the machining accuracy, ensuring the dimensional accuracy and surface quality of the workpiece to be ground 2002, but also improves the stability of the machining quality, enabling each machining to meet a high and stable quality standard and reducing the defective rate.

[0128] Servo motors have fast dynamic response and high positioning accuracy. Coupled with the closed-loop control of the absolute grating for position, a high-precision position control system is formed. Among the three driving components, the servo motor can quickly respond to control commands and rapidly adjust the positions of the carriage and the movable base 5000. The absolute grating real-time monitors the positions of the moving components and feeds the position information back to the control system to form a closed-loop control. Once a deviation is found between the actual position and the set position, the control system can promptly adjust the operation of the servo motor to correct the deviation. For example, when machining a workpiece 2002 with a complex shape to be ground, the grinding wheel 3000 needs to perform precise grinding at multiple positions. The cooperation of the servo motor and the absolute grating can ensure that the grinding wheel 3000 accurately reaches each set position, guaranteeing the accuracy and consistency of the machining and achieving high-precision grinding.

[0129] In the design of this grinding center, the unique design along the Y-axis direction has many advantages and has an important impact on the overall equipment performance and machining ability.

[0130] The layout of using double lead screws for driving along the Y-axis direction greatly improves the rigidity of the lead screw movement. During the grinding process, especially when machining arc end teeth and straight end teeth with extremely high precision requirements, stable lead screw movement is crucial. The two lead screws share the load together. Compared with a single lead screw, they can better resist various external force interferences such as grinding force and friction force, ensuring the stability and accuracy of the Y-axis carriage during movement. This not only guarantees the precise position control of the grinding wheel 3000 in the Y-axis direction but also reduces vibrations and displacements caused by insufficient lead screw rigidity, thereby improving machining accuracy and surface quality.

[0131] The carriage along the Y-axis direction can adopt the design of U-shaped guide rails. The U-shaped guide rails can accommodate the column. This layout makes full use of the space and effectively saves the height space of the bed 1000. Within the limited space of the bed 1000, a reasonable layout of each component is achieved, making the structure of the entire grinding center more compact. At the same time, it is also conducive to the miniaturization and integration of the equipment. This not only reduces the floor area of the equipment but also facilitates the installation, commissioning, and maintenance of the equipment.

[0132] The motor is placed beside the lead screw on the side and controls the lead screw movement through a synchronous belt and a synchronous pulley. This design also plays an important role in saving space. This layout avoids the increase in the width of the bed 1000 that may be caused by installing the motor in other positions, effectively reducing the size of the bed 1000 in the width direction. At the same time, through the transmission method of the synchronous belt and the synchronous pulley, there is no need to occupy too much axial space of the transmission shaft, enabling efficient power transmission within the limited space. This not only optimizes the overall structure of the bed 1000 but also improves the space utilization rate of the equipment, enabling the grinding center to achieve more complex motion control and machining functions within the limited space.

[0133] The above settings can improve the kinematic rigidity, optimize the spatial layout and other aspects, enhance the performance and practicability of the grinding center, and enable it to better meet the grinding requirements of workpieces with high precision and complex shapes.

[0134] In some embodiments of the present application, referring to Figure 11 and Figure 12 , Figure 11 is a schematic structural diagram of the cutting center provided by the embodiment of the present application in the second implementation state. Figure 12 is a schematic structural diagram of the cutting center provided by the embodiment of the present application in the third implementation state. The rotating connection mechanism 5001 is arranged on the surface of the movable base 5000. One end of the rotating shaft 4000 is tightly connected to the rotating connection mechanism 5001 through a driving motor, and then stably installed on the movable base 5000.

[0135] The rotating connection mechanism 5001 can drive the rotating shaft 4000 to flexibly rotate in a plane parallel to the surface of the movable base 5000.

[0136] In some embodiments, referring to Figure 1 , the rotating connection mechanism 5001 drives the rotating shaft 4000 and the grinding wheel 3000 to rotate along the B direction.

[0137] In some embodiments, the rotating connection mechanism 5001 can be set as a mechanical turntable. When the mechanical turntable operates, with its own rotational motion, it can easily drive the connected rotating shaft 4000 to rotate together. The grinding wheel 3000 installed at the end of the rotating shaft 4000 can thus change its orientation to achieve diversified grinding operations.

[0138] Taking a common grinding scenario as an example, in the initial state, the grinding wheel 3000 is vertically placed downward, and at this time, grinding processing in the vertical direction is mainly carried out. However, when facing special shapes or processing technology requirements, the rotating connection mechanism 5001 comes into play. By driving the rotating shaft 4000 to rotate through the mechanical turntable, the originally vertically downward grinding wheel 3000 is changed to a horizontal placement. Once the orientation adjustment is completed, the driving motor is immediately started to drive the rotating shaft 4000 to rotate, and then drive the horizontally placed grinding wheel 3000 to carry out grinding work in the horizontal direction. This flexible steering mechanism enables the grinding wheel 3000 to quickly adapt to different processing requirements. Whether it is for plane, curved surface or workpieces to be ground 2002 with special angles, it can accurately perform grinding operations, greatly expanding the processing flexibility and application range of the grinding center.

[0139] The vertical moving mechanism controls the grinding wheel 3000 to move and position in three-dimensional space, while the rotating connection mechanism 5001 further enriches the movement mode of the grinding wheel 3000. The two complement each other. When machining workpieces with complex shapes such as arc end teeth and straight end teeth, the vertical moving mechanism accurately positions the grinding wheel 3000 at the machining position, and the rotating connection mechanism 5001 flexibly adjusts the orientation and rotation direction of the grinding wheel 3000 according to the tooth shape characteristics, and cooperates with the rotation of the turntable to fully guarantee the high-efficiency and high-precision machining of various workpieces to be ground, fully demonstrating the excellent machining ability and high versatility of this grinding center.

[0140] On the other hand, from the aspect of machining flexibility, the rotating shaft 4000 can rotate along its own axis, so that the grinding wheel 3000 installed at the end of the rotating shaft 4000 can continuously change the rotation direction to adapt to different grinding requirements. For example, when machining arc end teeth and straight end teeth, the rotation direction of the grinding wheel 3000 can be flexibly adjusted according to the tooth shape characteristics and machining process, so as to improve the grinding effect. The adjustability of the orientation of the rotating shaft 4000 further expands the machining range of the grinding wheel 3000. It enables the grinding wheel 3000 to machine the workpiece to be ground 2002 at different angles. For workpieces with complex shapes and special angle requirements, such as the workpiece to be ground 2002 with an inclined surface or a curved surface, the rotating shaft 4000 can be adjusted to a suitable orientation, so that the grinding wheel 3000 can accurately fit the workpiece surface for grinding, greatly enhancing the adaptability of the equipment to workpieces to be ground 2002 with different shapes and sizes.

[0141] This design of the rotating shaft 4000 that can rotate and adjust its orientation enables this grinding center to be competent for more types of machining tasks, improving the versatility and use value of the equipment. Users do not need to purchase multiple devices for different machining requirements, reducing the production cost and the floor area of the equipment.

[0142] Additionally, a water spraying mechanism can be arranged outside the grinding wheel 3000 to continuously spray liquid towards the grinding position of the grinding wheel 3000 and the workpiece to be ground 2002, so as to meet the process requirements. For this, reference can be made to the existing technology and will not be elaborated herein.

[0143] In some embodiments of the present application, refer to Figure 1, the grinding center further includes a tool magazine 1001 and a grinding wheel dressing device 1002. The tool magazine 1001 is arranged on one side of the bed 1000 and has multiple tool storage positions inside, which can store tools of different types and specifications. The tool magazine 1001 is equipped with an automatic tool change mechanism. This mechanism can quickly and accurately select the required tool from the tool magazine according to the needs of the processing technology and install it at the position of the grinding wheel 3000, realizing the function of automatic tool change. For example, when machining workpieces to be ground 2002 with different materials or shapes, different types of grinding tools may be required. Through the automatic tool change function of the tool magazine 1001, the processing efficiency can be greatly improved, and the time and error of manual tool change can be reduced.

[0144] The grinding wheel dressing device 1002 is also arranged on one side of the bed 1000, and its structural design can precisely dress the grinding wheel 3000 (i.e., the grinding wheel). The grinding wheel dressing device 1002 generally includes a dressing tool, a driving mechanism, and a positioning mechanism. Driven by the driving mechanism, the dressing tool can cut and dress the surface of the grinding wheel 3000 according to a preset trajectory. The positioning mechanism ensures the position accuracy of the dressing tool during the dressing process, ensuring that the dressed grinding wheel 3000 has good shape accuracy and surface roughness. During the grinding process, as the grinding wheel 3000 wears, the abrasive grains on its surface will gradually become dull, affecting the grinding effect and processing quality. By regularly dressing the grinding wheel 3000 with the grinding wheel dressing device 1002, the grinding performance of the grinding wheel 3000 can be restored, the processing accuracy can be improved, the service life of the grinding wheel 3000 can be extended, and the processing cost can be reduced.

[0145] A grinding method applicable to the above-mentioned grinding center, the method includes:

[0146] Step S1: Determine the reference plane A where the axis of the workpiece to be ground 2002 is located;

[0147] Step S2: Move the grinding wheel 3000 through the vertical moving mechanism until the central axis of the grinding wheel 3000 is within the reference plane A.

[0148] Specifically, referring to Figure 13 , Figure 13 is a schematic diagram of the relative position between the grinding wheel provided in the embodiment of the present application and the workpiece to be ground during grinding: When determining the reference plane A where the axis of the workpiece to be ground 2002 is located, first accurately measure and position the workpiece to be ground 2002. A high-precision measuring instrument, such as a coordinate measuring machine, can be used to scan the workpiece to be ground 2002 to obtain its accurate three-dimensional model and axis position information. Then, based on these data, the reference plane A containing the axis of the workpiece to be ground 2002 is determined through calculation and analysis.

[0149] For the movement of the grinding wheel 3000 through the vertical moving mechanism, a three-dimensional moving system composed of the first slide 6000, the second slide 7000 and the moving base 5000 is used to achieve it. By controlling the coordinated work of the first driving component, the second driving component and the third driving component, the position of the grinding wheel 3000 in the three coordinate axis directions is accurately adjusted. Among them, the movement of the second slide 7000 along the second reference line direction (Y-axis) is particularly crucial. It realizes the forward and backward movement of the spindle grinding wheel to ensure that the central axis of the grinding wheel 3000 can be accurately located within the determined reference plane A. In this process, it is necessary to rely on the grating scales 9000 installed on the sides of each guide rail to feedback the position information in real time, so that the control system can accurately adjust the driving components according to the feedback data to ensure the accuracy and precision of the movement.

[0150] In terms of machining accuracy, by adjusting the central axis of the grinding wheel 3000 into the reference plane A where the axis of the workpiece to be ground 2002 is located, especially ensuring that the rotation axis of the arc end teeth is aligned with the rotation axis of the spindle grinding wheel and ensuring the parallelism with the X-axis, the machining accuracy of the arc end teeth can be greatly improved. This is because in this accurately aligned state, the grinding wheel 3000 can grind the workpiece to be ground 2002 evenly, avoiding uneven grinding caused by axis deviation, thereby effectively reducing the machining error and ensuring the dimensional accuracy and shape accuracy of the arc end teeth.

[0151] In terms of machining stability, the accurate axis alignment and position adjustment make the grinding process more stable. When the central axis of the grinding wheel 3000 and the axis of the workpiece to be ground 2002 are in the same reference plane A and have good parallelism, the grinding force distribution is more uniform, reducing the vibration and impact during the grinding process. This not only helps to improve the surface finish of the machining, but also can extend the service life of the grinding wheel 3000 and the equipment, and reduce the equipment maintenance cost.

[0152] From the perspective of machining adaptability, this grinding method can adapt to workpieces to be ground 2002 with different shapes and sizes, especially for arc end teeth and straight end teeth with complex shapes. By accurately controlling the position of the grinding wheel 3000, no matter how the axis direction of the workpiece to be ground 2002 changes, the grinding wheel 3000 can be adjusted to a suitable position through the vertical moving mechanism to meet diverse machining requirements, improving the versatility and application range of the grinding center.

[0153] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should all be considered as the scope recorded in this specification.

[0154] The above-described embodiments merely represent several implementation manners of the present application. The description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent application. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present application, several modifications and improvements can still be made, and these all fall within the protection scope of the present application. Therefore, the protection scope of the patent of the present application shall be subject to the appended claims.

Claims

1. A grinding center, characterized in that: The grinding center comprises: Bed(1000); A workbench (2000) connected to the bed (1000); A working turntable (2001) is arranged on the surface of the working table (2000) and is used to place the workpiece (2002) to be ground and drive the workpiece (2002) to rotate; Grinding wheel (3000); A vertical movable mechanism is arranged on the bed (1000) and is used to drive the grinding wheel (3000) to move in a three-dimensional space and drive the grinding wheel (3000) to grind the workpiece (2002) to be ground.

2. The grinding center according to claim 1, characterized in that: A first reference line and a second reference line are provided on the surface of the bed (1000); the workbench (2000) is located on an extension line of the second reference line; The vertical movable mechanism comprises a rotating shaft (4000), a movable base (5000), a first sliding seat (6000) and a second sliding seat (7000); The first slide seat (6000) is movably arranged on the surface of the bed (1000) and is movable along the length direction of the first reference line; The second slide seat (7000) is movably arranged on the first slide seat (6000) and is movable parallel to the length direction of the second reference line; The movable base (5000) is movably arranged on the second sliding seat (7000), and the movable base (5000) can be raised and lowered in a vertical direction; The rotating shaft (4000) is rotatably connected to the movable base (5000), and the grinding wheel (3000) is mounted on the end of the rotating shaft (4000).

3. The grinding center according to claim 2, characterized in that: The surface of the bed (1000) is provided with a first guide rail (6001), a first driving component and a first sliding block (6002); The first guide rail (6001) is arranged on the surface of the bed (1000), and the first guide rail (6001) is arranged parallel to the first reference line; the first driving component is arranged on the surface of the bed (1000), and the first sliding block (6002) is movably arranged on the first guide rail (6001); The first slide seat (6000) is assembled on the first sliding block (6002), and the movable end of the first driving component is used to drive the first slide seat (6000) to move.

4. The grinding center according to claim 3, characterized in that: The first sliding seat (6000) is provided with: a second guide rail (7001), a second driving component and a second sliding block (7002); The second guide rail (7001) is arranged parallel to the second reference line; The second sliding block (7002) is movably arranged on the second guide rail (7001); The second slide seat (7000) is assembled on the second sliding block (7002), and the movable end of the second driving component is used to drive the second slide seat (7000) to move.

5. The grinding center according to claim 4, characterized in that: The second slide seat (7000) is provided with a third guide rail (8001), a third driving component and a third sliding block (8002); The third guide rail (8001) is arranged on the second slide seat (7000) along the vertical direction, and the third sliding block (8002) is movably arranged on the third guide rail (8001); The movable base (5000) is arranged on the third sliding block (8002); The third driving component is arranged on the second sliding seat (7000), and the movable end of the third driving component is used to drive the movable base (5000) to move.

6. The grinding center according to claim 5, characterized in that The first driving component comprises: a first driving motor (6011), a first ball screw (6012) and a first screw nut (6013); The first ball screw (6012) is assembled on the surface of the bed (1000) via a bearing seat, and the length direction of the first ball screw (6012) is parallel to the first reference line; The first lead screw nut (6013) is sleeved on the outside of the first ball screw (6012), and the first lead screw nut (6013) is connected to the first slide seat (6000); the first drive motor (6011) is used to drive the first ball screw (6012) to rotate, thereby driving the first lead screw nut (6013) to move along the first ball screw (6012); and / or, The second driving component comprises: two second driving motors (7011), two second ball screws (7012) and two second ball screw nuts (7013); Two second guide rails (7001) are correspondingly arranged on the surface of the first slide seat (6000), and the two second ball screws (7012) are respectively assembled on the first slide seat (6000) through bearing seats, and the length directions of the two second ball screws (7012) are parallel to the second reference line; The two second lead screw nuts (7013) are respectively sleeved on the outside of the second ball screw (7012), and the two second lead screw nuts (7013) are both connected to the second slide seat (7000); The two second drive motors (7011) respectively drive the second ball screw (7012) to rotate via synchronous pulleys, thereby causing the second screw nut (7013) to move along the second ball screw (7012); and / or, The third driving component comprises: a third driving motor (8011), a third ball screw (8012) and a third screw nut (8013); The third ball screw (8012) is arranged on the second slide seat (7000), and the length direction of the third ball screw (8012) is consistent with the vertical direction; the third screw nut (8013) is sleeved on the third ball screw (8012), and the movable base (5000) is connected to the third screw nut (8013); The third driving motor (8011) is used to drive the third ball screw (8012) to rotate, thereby causing the third screw nut (8013) to move along the third ball screw (8012).

7. The grinding center according to claim 5, characterized in that At least two of the first sliding blocks (6002) are provided, wherein at least one of the first sliding blocks (6002) is provided as a clamping sliding block; the clamping sliding block can be clamped on the first guide rail (6001), thereby positioning the first sliding seat (6000); and / or, At least two second sliding blocks (7002) are provided, wherein at least one of the second sliding blocks (7002) is provided as a clamping sliding block; the clamping sliding block can be clamped on the second guide rail (7001), thereby positioning the second sliding seat (7000); and / or, At least two third sliders (8002) are provided, wherein at least one of the third sliders (8002) is provided as a clamping slider; the clamping slider can be clamped on the third guide rail (8001), thereby positioning the movable base (5000).

8. The grinding center according to claim 5, characterized in that: The side surface of the first guide rail (6001) is equipped with a grating ruler (9000); And / or, the side surface of the second guide rail (7001) is equipped with a grating ruler (9000); And / or, the side surface of the third guide rail (8001) is equipped with a grating ruler (9000).

9. The grinding center according to claim 2, characterized in that: The rotating shaft (4000) is connected to the movable base (5000) via a rotating connection mechanism (5001); the rotating connection mechanism (5001) can drive the rotating shaft (4000) to rotate along its own axis; and the rotating connection mechanism (5001) can adjust the orientation direction of the rotating shaft (4000) on the movable base (5000).

10. A grinding method, characterized in that: Applicable to the grinding center according to any one of claims 1 to 9 above, the method comprising: Determining a reference plane on which the axis of the workpiece (2002) to be ground is located; The grinding wheel (3000) is moved by means of the vertical movable mechanism until the central axis of the grinding wheel (3000) is located within the reference plane.

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