Grinding fixing mechanism and grinding machine provided with same

Abstract

The utility model relates to the technical field of grinding, and provides a grinding fixing mechanism and a grinding machine provided with the grinding fixing mechanism. The grinding fixing mechanism comprises an angle adjusting assembly, a rotating assembly and a supporting table. The angle adjusting assembly comprises an assembling table and a movable table slidably connected to the assembling table, the assembling table is provided with an arc-shaped sliding way with a first axis, and the movable table can swing on the arc-shaped sliding way around the first axis relative to the assembling table. The rotary assembly is mounted on the movable table and can synchronously move along with the movable table; the rotary assembly is provided with a second axis, and the second axis and the first axis are arranged at an angle. The supporting table is installed on the rotating assembly and can rotate around the second axis under the action of the rotating assembly, and the supporting table can swing around the first axis along with the rotating assembly. The supporting table is used for fixing a to-be-machined workpiece. According to the grinding fixing mechanism, the pitching angle and the horizontal angle of the workpiece to be machined can be accurately adjusted, and then the measuring precision is improved; and the whole operation is simple and convenient, and the measurement efficiency is improved.

Description

Technical Field

[0001] The present application relates to the field of grinding technology, and in particular to a grinding fixing mechanism and a grinding machine equipped with the same. Background Art

[0002] When processing crystal materials, the crystal rod needs to be cut into multiple cylindrical blocks, and then the blocks are ground to form the wafers required for subsequent production. When grinding the blocks, the crystal orientation needs to be measured, and then the crystal grinding is performed based on the results of the crystal orientation measurement. Therefore, whether the crystal orientation measurement results are accurate will directly lead to whether the crystal grinding quality meets the standards.

[0003] In the related art, when measuring the crystal orientation (orientation for short), the crystal orientation of the end face of the silicon carbide crystal is often measured manually, and the operator needs to constantly adjust the angle of the crystal during the measurement process to determine the crystal orientation. Therefore, the measurement takes a long time and has poor accuracy and efficiency. Utility Model Content

[0004] Based on this, it is necessary to provide a grinding and fixing mechanism that can accurately change the pitch angle and horizontal angle of the crystal, thereby improving the measurement accuracy; and the overall operation is simple and convenient, thereby improving the measurement efficiency.

[0005] A grinding fixing mechanism comprises an angle adjustment component, a rotary component and a support table: the angle adjustment component comprises an assembly table and a movable table slidably connected to the assembly table, the assembly table is constructed with an arc-shaped slideway having a first axis, and the movable table can swing relative to the assembly table on the arc-shaped slideway around the first axis; the rotary component is installed on the movable table and can move synchronously with the movable table; the rotary component has a second axis, and the second axis is set at an angle to the first axis; the support table is installed on the rotary component and can rotate around the second axis under the action of the rotary component, and the support table can swing around the first axis with the rotary component; the support table is used to fix a workpiece to be processed.

[0006] In some embodiments, the rotating assembly includes a rotating shaft and a mounting seat, the rotating shaft is rotatably connected to the mounting seat, the rotating axis of the rotating shaft is the second axis, the mounting seat is installed on the movable table, and the support platform is connected to one end of the rotating shaft away from the movable table.

[0007] In some embodiments, the grinding fixing mechanism also includes a clamping jaw assembly, which is mounted on the rotating assembly and / or the movable table; the clamping jaw assembly includes at least two clamping jaws, at least two of which are arranged at intervals along the circumference of the support table and are disposed on the outer peripheral side of the support table, and each of the clamping jaws can move closer to or away from the support table.

[0008] In some embodiments, the clamping jaw assembly further comprises a chuck, wherein the chuck is mounted on the rotary assembly, and at least two of the clamping jaws are respectively slidably connected to the chuck.

[0009] In some of the embodiments, the support platform is constructed with a plurality of adsorption holes arranged at intervals and an air channel connected to each of the adsorption holes; the grinding and fixing mechanism also includes an air suction structure, and the air suction structure is connected to the air channel.

[0010] In some embodiments, the side of the support platform facing away from the rotating component is constructed with a plurality of convex strips arranged at intervals and protruding along the second axis direction toward away from the rotating component, a groove is defined between any adjacent convex strips, and the bottom of the groove is provided with a plurality of adsorption holes arranged at intervals.

[0011] In some of the embodiments, a plurality of the ridges are spaced apart around the second axis and are defined as a group of annular ridge groups; the support platform is constructed with a plurality of groups of the annular ridge groups, and the diameters of the plurality of groups of the annular ridge groups are spaced apart from small to large and from inside to outside; the plurality of the ridges include closed annular ridges, and the annular ridges are disposed at the outermost sides of the plurality of groups of the annular ridge groups.

[0012] In some embodiments, the grinding fixing mechanism also includes a pressing assembly, which is installed above the support table; the pressing assembly at least includes a pressing head, which can move closer to or away from the support table along the second axis direction to clamp or release the workpiece to be processed.

[0013] In some embodiments, the pressing assembly further includes a sliding seat and a connecting arm, the connecting arm is slidably connected to the sliding seat, and the pressing head is connected to the connecting arm; the connecting arm can slide relative to the sliding seat along the second axis direction under the action of external force to drive the pressing head to move synchronously.

[0014] In some embodiments, the grinding and fixing mechanism further includes a mounting bracket, and the pressing assembly is mounted on the mounting bracket.

[0015] The present application also provides a grinding machine, comprising the above-mentioned grinding fixing mechanism.

[0016] Beneficial effects: The movable table is swung relative to the assembly table around the first axis to change the pitch angle of the support table; and the rotary assembly is used to drive the support table to rotate around the second axis to change the horizontal angle. Therefore, when the workpiece is mounted on the support table, the pitch angle and horizontal angle of the workpiece can be adjusted by the angle adjustment assembly and the rotary assembly, thereby adjusting the position of the crystal relative to the crystal orientation meter, making it easier to measure the crystal orientation. The overall operation is simple and convenient, and the adjustment accuracy of the crystal is higher, thereby improving the measurement accuracy and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 A schematic diagram of a grinding fixing mechanism provided in one embodiment of the present application;

[0019] Figure 2 for Figure 1 A top view of the grinding fixture is provided;

[0020] Figure 3 for Figure 2 Cross-section of the middle AA;

[0021] Figure 4 A schematic diagram of a grinding fixing mechanism provided in another embodiment of the present application.

[0022] 1. The cam assembly includes the following components: 10, angle adjustment assembly; 11, assembly table; 12, movable table; 13, second motor; 14, lead screw; 15, transmission seat; 20, rotation assembly; 21, rotation axis; 22, mounting seat; 30, support table; 31, convex strip; 32, groove; 40, jaw assembly; 41, jaw; 42, chuck; 50, pressing assembly; 51, pressing head; 52, sliding seat; 53, connecting arm; 54, mounting bracket; 60, mounting base plate; 111, arc slide; 121, curved surface; 301, annular convex strip group; 302, circular convex strip; 411, first limiting portion; 412, second limiting portion; 541, crossbeam; 542, vertical beam; 543, supporting base plate; 1101, assembly cavity. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth 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 violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0024] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0025] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0026] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0028] like Figures 1 to 3As shown, an embodiment of the present application provides a grinding fixing mechanism, including an angle adjustment component 10, a rotary component 20 and a support table 30. The angle adjustment component 10 includes an assembly table 11 and a movable table 12 slidably connected to the assembly table 11, the assembly table 11 is constructed with an arc-shaped slideway 111 having a first axis, and the movable table 12 can swing relative to the assembly table 11 on the arc-shaped slideway 111 around the first axis. The rotary component 20 is installed on the movable table 12 and can move synchronously with the movable table 12; and the rotary component 20 has a second axis, and the second axis is set at an angle to the first axis. The support table 30 is installed on the rotary component 20, and can rotate around the second axis under the action of the rotary component 20, and the support table 30 can swing around the first axis with the rotary component 20. The support table 30 is used to fix the workpiece to be processed.

[0029] It should be noted in advance that the direction of the first axis is the X-axis direction, hereinafter referred to as the first axial direction or the X-axis direction, and the first axis is referred to as the X-axis; the direction of the second axis is the Z-axis direction, hereinafter referred to as the second axial direction or the Z-axis direction, and the second axis is referred to as the Z-axis.

[0030] Taking the workpiece to be processed as a crystal as an example, since the crystal orientation is not regular in the horizontal or vertical direction, it is necessary to adjust the installation posture of the crystal during actual use. In this embodiment, the movable table 12 is swung relative to the assembly table 11 around the first axis to change the pitch angle of the support table 30; and the setting of the rotary assembly 20 is used to drive the support table 30 to rotate around the second axis to change the horizontal angle. Therefore, when the workpiece to be processed is installed on the support table 30, the pitch angle and horizontal angle of the workpiece to be processed can be adjusted by the angle adjustment assembly 10 and the rotary assembly 20, thereby adjusting the position of the crystal relative to the crystal orientation meter, which is more convenient for the crystal orientation measurement. The overall operation is simple and convenient, and the adjustment accuracy of the crystal is higher, thereby improving the measurement accuracy.

[0031] A mounting base plate 60 is mounted at the bottom of the angle adjustment assembly 10 , so that the grinding fixing mechanism can be mounted on the machine platform of the grinding machine using the mounting base plate 60 .

[0032] In some embodiments, the support table 30 is constructed with a plurality of adsorption holes arranged at intervals and an air duct connected to each adsorption hole. The grinding and fixing mechanism also includes an air pumping structure, which is connected to the air duct and is used to form a negative pressure at each adsorption hole to adsorb and fix the crystal. Compared with the use of wax to fix the crystal in the related art, the use of negative pressure fixation has better protection for the crystal and avoids damage to the crystal during dewaxing; moreover, this fixing method is more efficient, omitting the processes of wax sticking and dewaxing, and only needs to adjust the start and stop of the air pumping structure to meet the negative pressure adsorption and relaxation.

[0033] Furthermore, the air extraction structure includes a pneumatic source and an air pipe, one end of the air pipe is connected to the pneumatic source, and the other end is connected to the airway. The pneumatic source can be a vacuum pump to form negative pressure adsorption at each adsorption hole.

[0034] See also Figure 1 , Figure 2 and Figure 4 Exemplarily, the side of the support table 30 facing away from the rotating component 20 is constructed with a plurality of convex strips 31 arranged at intervals and protruding along the Z-axis direction away from the rotating component 20, and a groove 32 is defined between any adjacent convex strips 31, and the bottom of the groove 32 is provided with a plurality of adsorption holes arranged at intervals. The provision of the convex strips 31 is equivalent to raising the support surface of the support table 30 relative to the crystal, and the crystal can be placed on the extended ends of the plurality of convex strips 31. In this way, the contact area between the support table 30 and the crystal can be reduced, thereby reducing the wear of the crystal and further improving the protectiveness. Moreover, since the adsorption holes are provided at the bottom of the grooves 32, when the crystal is supported on each convex strip 31, a space for gas flow is formed between the crystal and the support table 30, which is equivalent to increasing the adsorption area and range of each adsorption hole acting on the crystal, thereby improving the reliability of adsorption and fixation. Figure 2 and Figure 4 As shown, further, a closed annular ridge 302 is provided on the outermost side of the plurality of annular ridge groups 301 to seal the space for gas flow between the crystal and the support platform 30 so that it is not connected to the external environment, thereby ensuring adsorption performance.

[0035] like Figure 2 and Figure 4 As shown, further, a plurality of ridges 31 are arranged at intervals around the second axis and are defined as a group of annular ridge groups 301. The support platform 30 is constructed with a plurality of groups of annular ridge groups 301, and the diameters of the plurality of groups of annular ridge groups 301 are arranged at intervals from small to large and from inside to outside. Taking the support platform 30 as a cylindrical shape as an example, each ridge 31 is arc-shaped. Then, along the radial direction of the support platform 30, an annular groove is arranged between any two adjacent groups of annular ridge groups 301; and, since the plurality of ridges 31 in each group of annular ridge groups 301 are also arranged at intervals, any two adjacent annular grooves are connected in the radial direction of the support platform 30. Such a configuration ensures that the support platform 30 has a sufficient adsorption range for the crystal and improves the fixing reliability.

[0036] In some specific embodiments, the number of ridges 31 in each annular ridge group 301 is the same, and along the radial direction of the support platform 30 , the ridges 31 in any two adjacent annular ridge groups 301 are arranged correspondingly.

[0037] See also Figure 1 , Figure 3 and Figure 4In an optional embodiment, the rotary assembly 20 includes a rotary shaft 21 and a mounting seat 22. The rotary shaft 21 is rotatably connected to the mounting seat 22, and the rotary axis of the rotary shaft 21 is the second axis. The mounting seat 22 is mounted on the movable platform 12, and the support platform 30 is connected to an end of the rotary shaft 21 away from the movable platform 12.

[0038] It is understandable that the installation of the mounting seat 22 is to realize the assembly of the rotating assembly 20 relative to the angle adjustment assembly 10, so that the rotating assembly 20 can move synchronously with the movable table 12. The rotating shaft 21 is used to drive the support table 30 to rotate around the second axis to adjust the angle of the crystal in the horizontal direction. The mounting seat 22 is used to support the rotating shaft 21, and a bearing can be installed between the two to achieve the effect of rotation support. In actual use, the rotating assembly 20 also includes a first motor, and the motor shaft of the first motor is connected to the rotating shaft 21 to realize the rotation drive of the support table 30. Of course, it can also be that the rotating shaft 21 is the motor shaft of the first motor, and the mounting seat 22 can be used as the motor housing of the first motor, which is used to be fixed with the movable table 12. It only needs to meet the connection between the rotating assembly 20 and the movable table 12, and the rotation drive of the support table 30.

[0039] In some embodiments, the rotary shaft 21 is configured as a hollow shaft so that the air pipe and the pneumatic source in the air extraction structure can be integrated in the hollow part for easy storage and assembly.

[0040] See also Figures 1 to 4 Exemplarily, the grinding and fixing mechanism also includes a clamping jaw assembly 40, which is mounted on the mounting seat 22. The clamping jaw assembly 40 includes at least two clamping jaws 41, which are arranged at intervals along the circumference of the support table 30 and are disposed on the outer peripheral side of the support table 30, and each clamping jaw 41 can move closer to or away from the support table 30. The setting of the clamping jaw assembly 40 is used to utilize the cooperation of at least two clamping jaws 41 to clamp the crystal from the circumferential surface of the crystal to achieve fixation. In actual use, when crystal orientation (i.e., crystal orientation determination) is required, at least two clamping jaws 41 move outward along the radial direction of the support table 30 relative to the support table 30 to move away from the support table 30, so that the circumferential surface of the crystal is exposed; at this time, the crystal is adsorbed and fixed using the adsorption holes on the support table 30. When end face grinding is required, at least two clamping jaws 41 move inward along the radial direction of the support platform 30 relative to the support platform 30 to approach the support platform 30 and clamp the crystal from the circumferential surface to fix it; at this time, due to the setting of the support platform 30, the part of the crystal away from the support platform 30 along the Z axis can be protruded relative to each clamping jaw 41, which is convenient for end face grinding and avoids the clamping jaw 41 from interfering with the grinding operation. In addition, the support platform 30 can be supported under the crystal to prevent the crystal from loosening and falling during grinding, thereby improving the safety of operation.

[0041] like Figure 1, Figure 2 and Figure 4 As shown, further, each clamping jaw 41 includes a first limiting portion 411 and a second limiting portion 412 arranged at an angle, so as to increase the clamping range of each clamping jaw 41 and the crystal, thereby improving the clamping reliability. In some specific embodiments, each clamping jaw 41 can be arranged in a "Y" shape, and the two forks at the upper part of the "Y" shape are respectively the first limiting portion 411 and the second limiting portion 412. In order to ensure the structural strength of each clamping jaw 41 itself, the part below the "Y" shape can be arranged wider. Among them, the number of clamping jaws 41 is two, and they are arranged at an interval of 180 degrees; it can also be three, and they are arranged at an interval of 120 degrees; it can even be 4, and they are arranged at an interval of 90 degrees. The number of clamping jaws 41 should not be too many, which not only causes waste of resources and inconvenience in assembly, but also may cause wear of the crystal due to the larger clamping range with the crystal; it should not be too few, which affects the clamping stability.

[0042] Please continue reading Figures 1 to 4 Furthermore, the clamping jaw assembly 40 further includes a chuck 42, which is mounted on the mounting seat 22. Each clamping jaw 41 is slidably connected to the chuck 42 to achieve the reciprocating movement of each clamping jaw 41 along the radial direction of the support platform 30. The chuck 42 is used to integrate each clamping jaw 41 so that the clamping jaw assembly 40 forms a complete and independent overall structure, which is convenient for the overall installation and disassembly relative to the movable platform 12. In actual use, the mounting seat 22 may be provided with a slide groove that matches the number of the clamping jaws 41, each clamping jaw 41 corresponds to a slide groove, and the bottom of the clamping jaw 41 is inserted into the corresponding slide groove and moves in the slide groove.

[0043] Alternatively, the chuck 42 may be directly mounted on the movable table 12. Alternatively, part of the chuck 42 may be connected to the movable table 12, and part of the chuck 42 may be connected to the mounting seat 22. Alternatively, in the absence of the chuck 42, each clamping jaw 41 may be directly slidably connected to the mounting seat 22, or directly slidably connected to the movable table 12, or slidably connected to both the mounting seat 22 and the movable table 12. As long as the clamping jaw assembly 40 can be stably assembled to achieve the clamping and fixing of the crystal, this is only an example for illustration.

[0044] like Figure 4As shown, in an optional embodiment, the grinding fixing mechanism also includes a pressing assembly 50, which is installed above the support platform 30. The pressing assembly 50 includes at least a pressing head 51, which can move closer or farther relative to the support platform 30 along the Z-axis direction to clamp or loosen the workpiece to be processed. The setting of the pressing head 51 can be clamped at both ends of the crystal along the Z-axis direction with the support platform 30 for grinding the circumferential surface of the crystal. In actual use, it is necessary to cut the crystal rod into a plurality of cylindrical crystal blocks, and then grind each cylindrical crystal block to form a lens with a thinner thickness. Therefore, the crystal referred to in the embodiment of the present application refers to a cylindrical crystal block. When grinding the crystal, it is necessary to grind both the end face and the circumferential surface. End face grinding is grinding along the thickness direction of the crystal. Therefore, when the crystal is placed on the support platform 30, the thickness direction of the crystal, that is, the axial direction of the cylindrical crystal block, is along the Z-axis direction.

[0045] When performing end face grinding, the clamping jaws 41 can be used to clamp the crystal from the circumferential surface; at this time, the lower pressure head 51 moves up along the Z-axis direction to be away from the support table 30, ensuring that there is sufficient operating space above the crystal to reduce interference. When performing circumferential surface grinding, the lower pressure head 51 moves down along the Z-axis direction to cooperate with the support table 30 to clamp the crystal from both end surfaces along the Z-axis direction; at this time, each clamping jaw 41 moves radially outward along the support table 30 to fully expose the circumferential surface of the crystal and reserve sufficient space for grinding with a grinding wheel; at the same time, the support table 30 rotates around the Z-axis under the action of the rotating assembly 20, and the lower pressure head 51 also rotates around the Z-axis to make the circumferential surface of the crystal fully contact with the grinding wheel to achieve grinding.

[0046] like Figure 4 As shown, further, the pressing assembly 50 also includes a sliding seat 52 and a connecting arm 53, the connecting arm 53 is slidably connected to the sliding seat 52, and the pressing head 51 is connected to the connecting arm 53. The connecting arm 53 can slide relative to the sliding seat 52 along the Z-axis direction under the action of external force to drive the pressing head 51 to move synchronously. It can be understood that the sliding cooperation between the sliding seat 52 and the connecting arm 53 can guide the movement of the connecting arm 53 along the Z-axis direction, avoid the unstable movement of the pressing head 51 and the displacement relative to the support table 30, and improve the fixing stability of the crystal. At the same time, the setting of the connecting arm 53 can separate the pressing head 51 from the sliding seat 52 in the horizontal direction, ensuring that the pressing head 51 can be directly opposite to the support table 30 set in the middle position of the movable table 12. The pressing head 51 is rotatably connected to the connecting arm 53. At this time, a driver for driving the pressing head 51 to rotate around the Z axis is also provided on the connecting arm 53 to cooperate with the rotation of the support platform 30 under the action of the rotating shaft 21 to achieve uniform grinding of the circumferential surface.

[0047] like Figure 4As shown, in actual use, the pressing assembly 50 also includes a mounting bracket 54, and the sliding seat 52 is fixed at a position above the mounting bracket 54. The sliding seat 52 and the connecting arm 53 can be connected in a sliding manner by a slider and a slide groove. At the same time, the pressing assembly 50 also includes a linear drive member, which is connected to the side of the connecting arm 53 away from the support platform 30 to achieve linear movement drive of the pressing head 51 along the Z-axis direction. The linear drive member can be a cylinder or an electric push rod. A floating head can be set at the connection between the linear drive member and the connecting arm 53 to play a buffering role and improve the protection of the crystal.

[0048] The mounting bracket 54 may include a plurality of cross beams 541, a plurality of vertical beams 542, and a support base plate 543. The bottom of each vertical beam 542 is integrated and assembled on the support base plate 543, and is arranged at intervals along the circumference of the support base plate 543, each cross beam 541 is connected to a side of each vertical beam 542 away from the support base plate 543 along the Z-axis direction, and at least one cross beam 541 is connected between any two adjacent vertical beams 542 along the circumference of the support base plate 543.

[0049] Please continue reading Figures 1 to 4 In some embodiments, an assembly cavity 1101 is provided on one side of the assembly table 11 facing the movable table 12, and two arc-shaped slideways 111 are provided, and are respectively arranged on both sides of the assembly cavity 1101 along the third direction (i.e., the Y-axis direction). The angle adjustment assembly 10 also includes a second motor 13, a lead screw 14 connected to the second motor 13 by transmission, a transmission seat 15 threadedly connected to the lead screw 14, and a movable seat hinged to the transmission seat 15, and the movable seat is connected to the movable table 12. The second motor 13 is located outside the assembly cavity 1101, and the transmission seat 15 and the movable seat are both located in the assembly cavity 1101. Part of the lead screw 14 is located outside, and the other part is located in the assembly cavity 1101 to cooperate with the transmission seat 15. The bottom of the movable table 12 is provided with a curved surface 121 adapted to the arc extension direction of the arc-shaped slideway 111. The second motor 13 drives the lead screw 14 to make the transmission seat 15 reciprocate along the axial direction of the lead screw 14, and the movable seat drives the movable platform 12 to reciprocate along the extension direction of the arc slideway 111 to achieve pitch angle adjustment. The axis of the lead screw 14 is parallel to the first axis.

[0050] In some specific embodiments, the angle adjustment component 10 adopts an angle stage.

[0051] See also Figure 4As shown, another embodiment of the present application provides a grinding machine, including a crystal orientation meter and the above-mentioned grinding and fixing mechanism. The crystal orientation meter is arranged at intervals relative to the grinding and fixing mechanism, and is used to determine the crystal orientation of the crystal placed on the support table 30. At the same time, the grinding machine also includes a first grinding mechanism for grinding from the end face of the crystal, and the grinding wheel of the first grinding mechanism can be arranged above the support table 30. When end face grinding is required, the above-mentioned pressing assembly 50 is removed to avoid interference. The grinding machine also includes a second grinding mechanism for grinding from the circumferential surface of the crystal. At this time, the first grinding mechanism is removed or rotated to other directions, and the pressing assembly 50 is installed so that the pressing head 51 is directly opposite to the bottom of the support table 30. After the support table 30 and the pressing head 51 clamp the crystal, the circumferential surface grinding can be performed. Moreover, during the grinding process, it is precisely because of the setting of the adsorption holes on the support table 30 that the crystal can be fixed, the crystal fixing effect is improved, and the movement and deviation during the grinding process are prevented.

[0052] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A grinding fixing mechanism, characterized in that: include: An angle adjustment assembly (10) comprises an assembly platform (11) and a movable platform (12) slidably connected to the assembly platform (11), the assembly platform (11) being configured with an arc-shaped slideway (111) having a first axis, and the movable platform (12) being capable of swinging relative to the assembly platform (11) on the arc-shaped slideway (111) around the first axis; A rotary assembly (20) is mounted on the movable platform (12) and is capable of synchronously moving with the movable platform (12); the rotary assembly (20) has a second axis, and the second axis is arranged at an angle to the first axis; The support platform (30) is installed on the rotating assembly (20) and can rotate around the second axis under the action of the rotating assembly (20), and the support platform (30) can swing around the first axis along with the rotating assembly (20); the support platform (30) is used to fix the workpiece to be processed.

2. The grinding fixing mechanism according to claim 1, characterized in that: The rotary assembly (20) comprises a rotary shaft (21) and a mounting seat (22); the rotary shaft (21) is rotatably connected to the mounting seat (22); the rotary axis of the rotary shaft (21) is the second axis; the mounting seat (22) is mounted on the movable platform (12); and the support platform (30) is connected to an end of the rotary shaft (21) that is away from the movable platform (12).

3. The grinding fixing mechanism according to claim 1 or 2, characterized in that: The grinding and fixing mechanism further comprises a clamping jaw assembly (40), wherein the clamping jaw assembly (40) is mounted on the rotating assembly (20) and / or the movable table (12); The clamping jaw assembly (40) comprises at least two clamping jaws (41), and the at least two clamping jaws (41) are arranged at intervals along the circumference of the support platform (30) and are disposed on the outer peripheral side of the support platform (30), and each of the clamping jaws (41) can move towards or away from the support platform (30).

4. The grinding fixing mechanism according to claim 3, characterized in that: The clamping jaw assembly (40) further comprises a chuck (42), wherein the chuck (42) is mounted on the rotary assembly (20), and at least two of the clamping jaws (41) are respectively slidably connected to the chuck (42).

5. The grinding fixing mechanism according to claim 1, characterized in that: The support platform (30) is configured with a plurality of adsorption holes arranged at intervals and an air passage connected to each of the adsorption holes; The grinding and fixing mechanism further comprises an air pumping structure, and the air pumping structure is connected to the air passage.

6. The grinding fixing mechanism according to claim 1 or 5, characterized in that: A side of the support platform (30) facing away from the rotary assembly (20) is configured with a plurality of convex strips (31) arranged at intervals and protruding along the second axis direction away from the rotary assembly (20), a groove (32) is defined between any adjacent convex strips (31), and a plurality of adsorption holes arranged at intervals are provided at the bottom of the groove (32).

7. The grinding fixing mechanism according to claim 6, characterized in that: The plurality of convex strips (31) are arranged at intervals around the second axis and are defined as a group of annular convex strip groups (301); the support platform (30) is configured with a plurality of groups of annular convex strip groups (301), and the diameters of the plurality of groups of annular convex strip groups (301) are arranged at intervals from small to large and from inside to outside; The plurality of convex strips (31) include a closed annular convex strip (302), and the annular convex strip (302) is arranged at the outermost side of the plurality of annular convex strip groups (301).

8. The grinding fixing mechanism according to claim 1, characterized in that: The grinding and fixing mechanism further comprises a pressing assembly (50), wherein the pressing assembly (50) is installed above the supporting platform (30); The pressing assembly (50) comprises at least a pressing head (51), and the pressing head (51) can move towards or away from the support platform (30) along the second axis direction to clamp or release the workpiece to be processed.

9. The grinding fixing mechanism according to claim 8, characterized in that: The pressing assembly (50) further comprises a sliding seat (52) and a connecting arm (53), wherein the connecting arm (53) is slidably connected to the sliding seat (52), and the pressing head (51) is connected to the connecting arm (53); The engagement arm (53) can slide relative to the sliding seat (52) along the second axis direction under the action of an external force, so as to drive the pressing head (51) to move synchronously.

10. A grinding machine, characterized in that: The grinding machine comprises the grinding fixture mechanism according to any one of claims 1 to 9.

Images