A grinding device

Abstract

The present invention relates to a grinding device for processing hard and brittle rods, comprising a frame, a feeding device, a clamping device and a grinding device, wherein the feeding device, the clamping device and the grinding device are all arranged on the frame, the clamping device comprises a clamping frame, a front clamping assembly and a rear clamping rotating assembly, the front clamping assembly and the rear clamping rotating assembly are arranged below the clamping frame, and a distance sensor is arranged on the grinding device, wherein the distance sensor is arranged toward the side of the hard and brittle rod on the clamping device, and the distance sensor is arranged on the grinding device through a sliding mechanism. Different from the prior art, the present invention can detect whether the side of the hard and brittle rod is parallel to the grinding surface of the grinding device, so as to facilitate the processing of the grinding device; it can protect the distance sensor and prevent the grinding chips from causing the distance sensor to fail or damage the distance sensor.

Description

Technical Field

[0001] The present invention relates to the technical field of hard and brittle bar processing, and in particular to a grinding device. Background Art

[0002] In the prior art, the traditional processing methods for squaring, grinding and rounding of hard and brittle bars at home and abroad are three separate processes, that is, three different equipments are used to complete the whole processing of single crystal silicon bars. In actual operation, the wire squarer usually needs to use adhesive to square the hard and brittle bars at the same time, and then the squared hard and brittle bars are separately rounded by the cylindrical grinder, and finally sent to the surface grinder for surface grinding and polishing.

[0003] More information related to the above technical solution can also be found in the following documents:

[0004] In the Chinese utility model patent with the authorization publication number CN 206578672U, a fully automatic single crystal silicon grinding and rounding machine processing equipment is disclosed. The fully automatic single crystal silicon grinding and rounding machine processing equipment includes a base frame, a cutting and grinding workbench, a centering device, a rough grinding power head, a fine grinding power head, and a size detection unit. The utility model enables the grinding and rounding of the crystal rod to be fully automatically performed in one device, without the need for transfer between different devices, which can effectively shorten the process of crystal rod circulation; at the same time, the grinding power head adopts a symmetrical layout, and performs double-sided processing at the same time, which doubles the processing efficiency.

[0005] In the Chinese utility model patent with authorization publication number CN 212528283U, the utility model relates to an annular wire saw cutting operating mechanism, including a frame, an annular wire saw cutting unit and a lifting unit; the annular wire saw cutting unit includes a wire saw cutting assembly and a linkage frame, wherein the wire saw cutting assembly includes a main drive assembly, a tensioning assembly and an annular cutting wire, the main drive assembly includes a main drive motor and a main drive wheel, the main drive wheel is transmission-connected to the main drive motor, the tensioning assembly includes a tensioning wheel, a tensioning spindle, a tensioning bearing seat, a swing arm, a swing arm rotating shaft, a swing arm bearing seat, a tension arm and a tensioning motor, the tensioning wheel is sleeved on the side wall of the tensioning bearing seat, the tensioning bearing seat is sleeved outside the tensioning spindle, one end of the swing arm is fixed to the tensioning spindle, and the other end is fixed to the swing arm rotating shaft, the swing arm bearing seat is sleeved outside the swing arm rotating shaft, and the tensioning motor is connected to the swing arm rotating shaft through the tension arm.

[0006] In the process of implementing the present invention, the inventors found that the prior art has the following problems:

[0007] In the prior art, the grinding device is not provided with a distance sensor, and it is impossible to ensure whether the side of the hard and brittle bar is parallel to the grinding surface of the grinding device during grinding. When the side of the hard and brittle bar is parallel to the grinding surface of the grinding device, the grinding amount is minimal. In addition, the existing distance sensor is generally exposed to the outside. When the grinding device grinds the side of the hard and brittle bar, the grinding chips easily fly onto the distance sensor, causing the distance sensor to fail or even damage the distance sensor. Summary of the invention

[0008] To this end, it is necessary to provide a grinding device to solve the technical problem that the prior art cannot ensure whether the side of the hard and brittle rod is parallel to the grinding surface of the grinding device during grinding, which easily leads to failure or damage of the distance sensor.

[0009] To achieve the above object, the inventor provides a grinding device for processing hard and brittle bars, comprising a frame, a feeding device, a clamping device and a grinding device.

[0010] The feeding device, the clamping device and the grinding device are all arranged on the frame, the feeding device is used to feed the hard and brittle bar material, the clamping device is used to clamp the hard and brittle bar material, and the grinding device is used to grind the hard and brittle bar material;

[0011] The clamping device comprises a clamping frame, a front clamping assembly and a rear clamping rotating assembly, wherein the front clamping assembly and the rear clamping rotating assembly are arranged below the clamping frame, the front clamping assembly and the rear clamping rotating assembly are arranged opposite to each other, a space for clamping the hard and brittle bar is reserved between the front clamping assembly and the rear clamping rotating assembly, and the rear clamping rotating assembly is configured to clamp the hard and brittle bar with the front clamping assembly, so that the hard and brittle bar is suspended and clamped below the clamping frame, and the hard and brittle bar can rotate around the axial direction;

[0012] A distance sensor is arranged on the grinding device, and the distance sensor is arranged toward the side of the hard and brittle rod on the clamping device. The distance sensor is used to detect whether the side of the hard and brittle rod on the clamping device is parallel to the grinding surface of the grinding device. The distance sensor is arranged on the grinding device through a sliding mechanism.

[0013] Different from the prior art, the above technical solution can detect any three points on the side of the hard and brittle bar stock through the distance sensor arranged on the grinding device, thereby forming a plane to obtain whether the side of the hard and brittle bar stock is parallel to the grinding surface of the grinding device; since the grinding surface of the grinding device is perpendicular to the horizontal plane, therefore, when the side of the hard and brittle bar stock is parallel to the grinding surface of the grinding device, the grinding amount at this time is the least, which is convenient for the processing of the grinding device. Secondly, since the distance sensor is arranged on the grinding device through a sliding mechanism, when the grinding device is grinding the side of the hard and brittle bar stock, the distance sensor can be retracted through the sliding mechanism, which protects the distance sensor and prevents the grinding chips from causing the distance sensor to fail or damage the distance sensor.

[0014] In this embodiment, the grinding surface of the grinding device is perpendicular to the horizontal plane.

[0015] As an embodiment of the present invention, more than three distance sensors are arranged on the grinding device, and the more than three distance sensors are arranged in a vertical direction. The more than three distance sensors cooperate with each other to detect whether the side surface of the hard and brittle rod is parallel to the grinding surface of the grinding device.

[0016] In this way, by setting more than three distance sensors in the vertical direction, three points form a surface, which can speed up the detection speed. After the detection, through calculation, it can be obtained whether the side surface of the hard and brittle rod is parallel to the grinding surface of the grinding device, thereby improving efficiency.

[0017] As an embodiment of the present invention, the grinding equipment also includes a controller, which is connected to and controls the rear clamping rotating assembly. The controller is used to receive signals from more than three distance sensors and control the rear clamping rotating assembly according to the signals transmitted by more than three distance sensors. The rear clamping rotating assembly is also used to rotate the hard and brittle rod.

[0018] In this way, the side position information of the hard and brittle rod is detected by more than three distance sensors to obtain whether the side of the hard and brittle rod is parallel to the grinding surface of the grinding device. If the side of the hard and brittle rod is not parallel to the grinding surface of the grinding device, the controller controls the rear clamping rotating assembly to rotate the hard and brittle rod until the side of the hard and brittle rod is parallel to the grinding surface of the grinding device, or the side of the hard and brittle rod is close to perpendicular to the horizontal plane, which can effectively reduce the processing amount of the grinding device.

[0019] As an embodiment of the present invention, the sliding mechanism includes a sliding slider and a sliding drive unit, the grinding device is provided with a sliding rail, three or more distance sensors are arranged on the sliding slider, the sliding slider is arranged on the sliding rail and can slide relatively along the extension direction of the sliding rail, and the sliding drive unit is used to drive the sliding slider to slide relatively along the extension direction of the sliding rail.

[0020] In this way, the three or more distance sensors are arranged on the sliding slider, and the sliding drive unit is used to drive the sliding slider to slide relatively along the extension direction of the sliding rail; when measurement is required, the three or more distance sensors are extended, and before the grinding device performs grinding processing, the three or more distance sensors are retracted to protect the three or more distance sensors to avoid or at least reduce failure or damage of the distance sensors.

[0021] As an embodiment of the present invention, the sliding mechanism also includes a position sensor, which is used to detect the position of the sliding slider and send the position signal of the sliding slider to the controller. The controller is connected to and controls the sliding drive unit. The controller is also used to receive the position signal transmitted by the position sensor and control the sliding drive unit according to the position signal transmitted by the position sensor.

[0022] In this way, the position of the sliding block can be detected by the position sensor, and after the detection, the sliding drive unit is controlled by the controller to achieve accurate control of the position of the sliding block.

[0023] As an embodiment of the present invention, the front clamping assembly contacts one end of the hard and brittle rod through a rotating member, and the rear clamping rotating assembly contacts the other end of the hard and brittle rod through a rotating member, and the rear clamping rotating assembly is used to drive the hard and brittle rod to rotate axially.

[0024] In this way, when processing hard and brittle rods, two grinding devices are used to process on both sides of the hard and brittle rod respectively. After processing on both sides of the hard and brittle rod, the hard and brittle rod can be rotated 90° through the cooperation of the rear clamping rotating assembly and the rotating part, so that the other two sides of the hard and brittle rod can be processed. At this time, a total of four sides of the hard and brittle rod can be processed.

[0025] As an embodiment of the present invention, the clamping device further comprises an upper frame, the clamping frame is arranged on the upper frame, and the clamping frame can slide relatively along the extension direction of the upper frame;

[0026] The upper frame is provided with a transmission screw, the clamping frame is provided with a nut matched with the transmission screw, and the clamping device also includes a sliding drive unit, which is transmission-connected to the transmission screw and used to drive the clamping frame to move relative to the upper frame.

[0027] In this way, the clamping frame can be set on the frame through the upper frame, thereby increasing the height of the clamping frame; the transmission screw can be rotated by the sliding drive unit to realize the movement of the clamping frame on the upper frame, thereby facilitating the control of the position of the clamping frame. The sliding drive unit is specifically a driving motor, which can accurately control the rotation of the transmission screw, thereby accurately controlling the position of the clamping frame.

[0028] As an embodiment of the present invention, the grinding device includes a fixed frame, a lifting assembly, a first grinding assembly and a second grinding assembly, the first grinding assembly and the second grinding assembly are arranged in the fixed frame, the first grinding assembly and the second grinding assembly are arranged along the processing direction, wherein the lifting assembly is used to drive the first grinding assembly and the second grinding assembly to move in the vertical direction.

[0029] In this way, the first grinding assembly and the second grinding assembly are driven to move upward and downward at the same time by the lifting assembly, which can be suitable for hard and brittle bars of different sizes and is easy to use.

[0030] As an embodiment of the present invention, the lifting assembly includes a lifting drive unit and a lifting platform, the first grinding assembly and the second grinding assembly are both arranged on the lifting platform, the lifting drive unit is arranged on the fixed frame, the output end of the lifting drive unit is transmission-connected to the lifting platform and is used to drive the lifting platform to move relative to each other in the vertical direction.

[0031] In this way, the lifting platform can be driven to move up and down in the vertical direction by the lifting driving unit, thereby driving the first grinding assembly and the second grinding assembly to move up and down, thereby achieving stable lifting and lowering of the lifting assembly.

[0032] As an embodiment of the present invention, the lifting assembly also includes a transmission unit and a lifting screw rod. An internal threaded hole matching the lifting screw rod is provided on the lifting platform. The lifting screw rod passes through the internal threaded hole and is transmission-connected to the lifting platform. The lifting drive unit is rotationally connected to the lifting screw rod through the transmission unit.

[0033] In this way, by driving the lead screw to rotate through the lifting drive unit, the lifting platform can be driven to move up and down, and the position of the lifting platform can be accurately controlled. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be 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 the drawings without paying creative work.

[0035] Figure 1 A schematic diagram of the three-dimensional structure of a grinding device according to an embodiment of the present application;

[0036] Figure 2 A schematic diagram of the three-dimensional structure of a grinding device according to an embodiment of the present application;

[0037] Figure 3 A front view of a grinding device according to an embodiment of the present application;

[0038] Figure 4 for Figure 3 Sectional view at AA in the middle;

[0039] Figure 5 A side view of a grinding device according to an embodiment of the present application;

[0040] Figure 6 A circuit block diagram of a grinding device according to an embodiment of the present application;

[0041] Figure 7 A schematic diagram of the three-dimensional structure of a grinding device according to another embodiment of the present application;

[0042] Figure 8 A front view of a grinding device according to another embodiment of the present application;

[0043] Fig. 9 A side view of a grinding device according to another embodiment of the present application;

[0044] Fig.10 A top view of a grinding device according to another embodiment of the present application;

[0045] Fig.11 A schematic diagram of the three-dimensional structure of an upper frame according to an embodiment of the present application;

[0046] Fig.12 A schematic diagram of the three-dimensional structure of a clamping device according to an embodiment of the present application;

[0047] Fig.13 This is a front view of a clamping device according to an embodiment of the present application.

[0048] Description of reference numerals:

[0049] 4. Loading device,

[0050] 5. Rack,

[0051] 6. Clamping device,

[0052] 61. Clamping frame,

[0053] 611, weight reduction hole,

[0054] 62. Front clamping assembly,

[0055] 63. Rear clamping rotating assembly,

[0056] 631, clamping end,

[0057] 64. Rotating parts,

[0058] 65. On the rack,

[0059] 651, transmission screw,

[0060] 652, slide rail,

[0061] 7. Grinding device,

[0062] 71. Fixed frame,

[0063] 72. Lifting components,

[0064] 721, lifting drive unit,

[0065] 722. Improve the platform.

[0066] 7221, lifting rail,

[0067] 7222, lift the slider,

[0068] 723. Transmission unit,

[0069] 7231, lifting reducer,

[0070] 7232, coupling,

[0071] 724, lifting screw,

[0072] 73. The first grinding assembly,

[0073] 731. The First Knife Plate

[0074] 732. Grinding drive unit,

[0075] 733. Translation drive unit,

[0076] 734, translation guide rail,

[0077] 735. Pan slider,

[0078] 736, bearing seat,

[0079] 74. The second grinding assembly,

[0080] 741, the second knife disc,

[0081] 75. Distance sensor,

[0082] 76. Sliding mechanism,

[0083] 761. Slide the slider.

[0084] 762. Sliding drive unit,

[0085] 763, sliding rails,

[0086] 764, Position Sensor,

[0087] 77. Controller,

[0088] 8. Hard and brittle bars. DETAILED DESCRIPTION

[0089] In order to explain the technical content, structural features, achieved objectives and effects of the technical solution in detail, the following is a detailed description in conjunction with specific embodiments and accompanying drawings.

[0090] In the description of this application, unless otherwise clearly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, an integral connection, or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0091] In the description of this specification, it should be understood that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limitations on the embodiments of the present application. In addition, in the context, it should also be understood that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0092] In the prior art, the traditional processing methods for squaring, grinding and rounding of hard and brittle bars at home and abroad are three separate processes, that is, three different equipments are used to complete the whole processing of single crystal silicon bars. In actual operation, the wire squarer usually needs to use adhesive to square the hard and brittle bars at the same time, and then the squared hard and brittle bars are separately rounded by the cylindrical grinder, and finally sent to the surface grinder for surface grinding and polishing.

[0093] In this embodiment, the direction indicated by the arrow x in the figure is the direction of advance and retraction of the grinding device 7, or the direction indicated by the arrow x is the direction of sliding, extending and retracting of the sliding mechanism 76; the direction indicated by the arrow y in the figure is the length direction of the hard and brittle rod material, or the direction indicated by the arrow y is the direction of movement of the clamping device 6; wherein, the direction indicated by the arrow x and the direction indicated by the arrow y form a horizontal plane, and the direction indicated by the arrow z is the vertical direction.

[0094] See also Figure 1 and Figure 2 This embodiment relates to a grinding device, including a frame 5, a feeding device 4, a clamping device 6 and a grinding device 7. The frame 5 can be implemented in the form of a base, a bracket, etc. The feeding device 4 is arranged on the frame 5, and the feeding device 4 is used to feed and unload hard and brittle bars; the clamping device 6 is arranged on the frame 5, and the clamping device 6 is used to clamp the hard and brittle bars; the hard and brittle bars are arranged on the frame 5; and the grinding device 7 is used to process the hard and brittle bars and grind the surface of the hard and brittle bars.

[0095] The clamping device 6 includes a clamping frame 61, a front clamping assembly 62 and a rear clamping rotating assembly 63. The front clamping assembly 62 and the rear clamping rotating assembly 63 are arranged below the clamping frame 61. The front clamping assembly 62 and the rear clamping rotating assembly 63 are arranged opposite to each other. A space for clamping the hard and brittle bar 8 is reserved between the front clamping assembly 62 and the rear clamping rotating assembly 63. The rear clamping rotating assembly 63 is configured to clamp the hard and brittle bar 8 with the front clamping assembly 62, so that the hard and brittle bar 8 is suspended and clamped below the clamping frame 61, and the hard and brittle bar 8 can rotate around the axis.

[0096] A distance sensor 75 is provided on the grinding device 7. The distance sensor 75 is arranged toward the side of the hard and brittle rod 8 on the clamping device. The distance sensor 75 is used to detect whether the side of the hard and brittle rod 8 on the clamping device 6 is parallel to the grinding surface of the grinding device. The distance sensor 75 is arranged on the grinding device 7 through a sliding mechanism 76.

[0097] In this embodiment, it is mainly possible to ensure that the surface to be ground is parallel to the plane of the grinding head, or perpendicular to the axis of the grinding head. In this embodiment, the grinding surface of the grinding device is perpendicular to the horizontal plane, and the hard and brittle bar 8 is preferably perpendicular to the horizontal plane, or nearly perpendicular to the horizontal plane.

[0098] Different from the prior art, the above technical solution can detect any three points on the side of the hard and brittle bar 8 through the distance sensor 75 arranged on the grinding device, thereby forming a plane to obtain whether the side of the hard and brittle bar 8 is parallel to the grinding surface of the grinding device; since the grinding surface of the grinding device 7 is perpendicular to the horizontal plane, when the side of the hard and brittle bar 8 is parallel to the grinding surface of the grinding device, the grinding amount at this time is the least, which is convenient for the processing of the grinding device 7. Secondly, since the distance sensor 75 is arranged on the grinding device 7 through the sliding mechanism 76, when the grinding device 7 grinds the side of the hard and brittle bar 8, the distance sensor 75 can be retracted through the sliding mechanism 76, which protects the distance sensor 75 and prevents the grinding chips from causing the distance sensor 75 to fail or damage the distance sensor 75.

[0099] See also Figures 2 to 5 More than three distance sensors 75 are arranged on the grinding device. The more than three distance sensors 75 are arranged in the vertical direction. The more than three distance sensors 75 cooperate with each other to detect whether the side surface of the hard and brittle rod is parallel to the grinding surface of the grinding device.

[0100] In this way, by setting more than three distance sensors 75 in the vertical direction, three points form a surface, which can speed up the detection speed. After the detection, through calculation, it can be obtained whether the side surface of the hard and brittle rod is parallel to the grinding surface of the grinding device, thereby improving efficiency.

[0101] In some embodiments, the sliding mechanism 76 includes a sliding slider 761 and a sliding drive unit 762. A sliding rail 763 is provided on the grinding device. Three or more distance sensors 75 are provided on the sliding slider 761. The sliding slider 761 is provided on the sliding rail 763 and can slide relatively along the extension direction of the sliding rail 763. The sliding drive unit 762 is used to drive the sliding slider 761 to slide relatively along the extension direction of the sliding rail 763.

[0102] In this way, more than three distance sensors 75 are arranged on the sliding slider 761, and the sliding drive unit 762 is used to drive the sliding slider 761 to slide relatively along the extension direction of the sliding rail 763; when measurement is required, more than three distance sensors 75 are extended, and before the grinding device performs grinding processing, more than three distance sensors 75 are retracted to protect the more than three distance sensors 75 to avoid or at least reduce the failure or damage of the distance sensors 75.

[0103] In some embodiments, see Figure 6The grinding device also includes a controller 77, which is connected to and controls the rear clamping rotating assembly 63. The controller 77 is used to receive signals from more than three distance sensors 75, and control the rear clamping rotating assembly 63 according to the signals transmitted by more than three distance sensors 75. The rear clamping rotating assembly 63 is also used to rotate the hard and brittle rod 8.

[0104] In this way, the side position information of the hard and brittle rod is detected by more than three distance sensors 75 to obtain whether the side of the hard and brittle rod 8 is parallel to the grinding surface of the grinding device. If the side of the hard and brittle rod 8 is not parallel to the grinding surface of the grinding device, the controller 77 controls the rear clamping rotating assembly 63 to rotate the hard and brittle rod 8 until the side of the hard and brittle rod 8 is parallel to the grinding surface of the grinding device, or the side of the hard and brittle rod 8 is close to perpendicular to the horizontal plane, which can effectively reduce the processing amount of the grinding device 7.

[0105] In some embodiments, the sliding mechanism 76 also includes a position sensor 764, which is used to detect the position of the sliding slider 761 and send the position signal of the sliding slider 761 to the controller 77. The controller 77 is connected to and controls the sliding drive unit 762. The controller 77 is also used to receive the position signal transmitted by the position sensor 764 and control the sliding drive unit 762 according to the position signal transmitted by the position sensor 764.

[0106] In this way, the position of the sliding slider 761 can be detected by the position sensor 764 , and after the detection, the sliding drive unit 762 is controlled by the controller 77 to achieve precise control of the position of the sliding slider 761 .

[0107] See also Figures 7 to 10 The present embodiment relates to a grinding device 7 for processing hard and brittle rods, including a fixed frame 71, a lifting assembly 72, a first grinding assembly 73 and a second grinding assembly 74, wherein the first grinding assembly 73 and the second grinding assembly 74 are arranged in the fixed frame 71, and the first grinding assembly 73 and the second grinding assembly 74 are arranged along the processing direction, wherein the lifting assembly 72 is used to drive the first grinding assembly 73 and the second grinding assembly 74 to move in the vertical direction (as indicated by the z arrow in the figure).

[0108] In this embodiment, the first grinding assembly 73 and the second grinding assembly 74 are arranged along the processing direction, and the lifting assembly 72 is used to drive the first grinding assembly 73 and the second grinding assembly 74 to move in the vertical direction (the direction indicated by the z arrow in the figure). In this way, the lifting assembly 72 drives the first grinding assembly 73 and the second grinding assembly 74 to move upward and downward at the same time, which can be used for hard and brittle bars of different sizes and is easy to use.

[0109] In some embodiments, the processing accuracy of the first grinding assembly 73 is less than that of the second grinding assembly 74; in this way, the first grinding assembly 73 is for rough grinding, and the second grinding assembly 74 is for fine grinding, and fine grinding is performed after rough grinding to facilitate the processing of hard and brittle rods.

[0110] In some embodiments, Figure 7 and 8 As shown, the lifting assembly 72 includes a lifting drive unit 721 and a lifting platform 722. The first grinding assembly 73 and the second grinding assembly 74 are both arranged on the lifting platform 722. The lifting drive unit 721 is arranged on the fixed frame 71. The output end of the lifting drive unit 721 is connected to the lifting platform 722 in a transmission manner and is used to drive the lifting platform 722 to move relative to each other in a vertical direction (in the direction indicated by the arrow z in the figure). In this way, the lifting drive unit 721 can drive the lifting platform 722 to move up and down in a vertical direction (in the direction indicated by the arrow z in the figure), thereby driving the first grinding assembly 73 and the second grinding assembly 74 to move up and down, and realizing the stable lifting and lowering of the lifting assembly 72.

[0111] In some embodiments, the lifting assembly 72 further includes a transmission unit 723 and a lifting screw 724. An internal threaded hole matching the lifting screw 724 is provided on the lifting platform 722. The lifting screw 724 passes through the internal threaded hole and is transmission-connected to the lifting platform 722. The lifting drive unit 721 is rotationally connected to the lifting screw 724 through the transmission unit 723. In this way, by driving the screw to rotate through the lifting drive unit 721, the lifting platform 722 can be driven to move up and down, and the position of the lifting platform 722 can be accurately controlled.

[0112] In some embodiments, the transmission unit 723 includes a lifting reducer 7231 and a coupling 7232. The lifting drive unit 721 is a lifting motor. The lifting drive unit 721 is connected to the lifting reducer 7231 through transmission. The lifting reducer 7231 is connected to the lifting screw 724 through the coupling 7232. In this way, the speed of the lifting motor is reduced by the lifting reducer 7231 to obtain a larger torque, and then the power is transmitted to the lifting screw 724 through the coupling 7232, thereby driving the rotation of the lifting screw 724. The coupling 7232 plays a role in stabilizing the connection.

[0113] In some embodiments, a lifting rail 7221 is provided on the fixing frame 71, and the lifting platform 722 is provided in the vertical direction. The lifting platform 722 cooperates with the lifting rail 7221 through the lifting slider 7222, and the lifting platform 722 can move relatively along the extension direction of the lifting rail 7221. In this way, the lifting platform 722 can be stably provided on the lifting rail 7221 through the lifting slider 7222, and the lifting rail 7221 is used to limit the movement of the lifting platform 722 in other directions.

[0114] In some embodiments, a lifting rail 7221 is provided at both ends of the fixing frame 71. Thus, by providing a lifting rail 7221 at both ends of the fixing frame 71, the lifting platform 722 cooperates with the two lifting rails 7221 through the lifting sliders 7222 at both ends, thereby improving the stability of the lifting platform 722 moving up and down.

[0115] In some embodiments, Figures 8 to 9 As shown, the first grinding assembly 73 includes a first cutter disc 731, a grinding drive unit 732 and a translation drive unit 733. The grinding drive unit 732 is used to drive the first cutter disc 731 to rotate, so as to grind the hard and brittle rod. A translation guide rail 734 is arranged on the lifting platform 722. The grinding drive unit 732 and the first cutter disc 731 are arranged on the translation guide rail 734 through a translation slider 735. The translation drive unit 733 is used to drive the first cutter disc 731 to approach or move away from the hard and brittle rod in the horizontal direction.

[0116] In this way, the first cutter disc 731 is driven to rotate by the grinding drive unit 732, so as to grind the hard and brittle bar stock. Here, the first cutter disc 731 is for rough grinding. The grinding drive unit 732 and the first cutter disc 731 are arranged on the translation guide rail 734 through the translation slider 735. The translation drive unit 733 can drive the first cutter disc 731 and the grinding drive unit 732 to advance or retract along the direction indicated by the arrow x in the figure, so as to realize the processing of the hard and brittle bar stock.

[0117] In some embodiments, the second grinding assembly 74 includes a second cutter disc 741, a grinding drive unit 732 and a translation drive unit 733. The grinding drive unit 732 is used to drive the second cutter disc 741 to rotate, so as to grind the hard and brittle rod. A translation guide rail 734 is arranged on the lifting platform 722. The grinding drive unit 732 and the second cutter disc 741 are arranged on the translation guide rail 734 through a translation slider 735. The translation drive unit 733 is used to drive the second cutter disc 741 to approach or move away from the hard and brittle rod in the horizontal direction.

[0118] In this embodiment, the first cutter disc 731 and the second cutter disc 741 are respectively disposed on the lifting platform 722 through bearing seats 736 .

[0119] In this way, the second cutter disc 741 is driven to rotate by the grinding drive unit 732, so as to grind the hard and brittle bar stock. The second cutter disc 741 here is fine grinding; the grinding drive unit 732 and the second cutter disc 741 are arranged on the translation guide rail 734 through the translation slider 735, and the translation drive unit 733 can drive the second cutter disc 741 and the grinding drive unit 732 to advance or retract in the direction indicated by the arrow x in the figure, so as to realize the processing of hard and brittle bar stock.

[0120] In some embodiments, the first cutter disc 731 and the second cutter disc 741 can be driven to advance or retreat by means of gear racks and telescopic cylinders, and the same can be achieved by means of a motor-driven screw rod.

[0121] In this embodiment, during the use of the grinding device 7, the first grinding assembly 73 and the second grinding assembly 74 are installed on the lifting platform 722, the loading device 4 is used to grind the hard and brittle rod material, the clamping device 6 clamps the hard and brittle rod material, and the grinding devices 7 on the left and right sides of the hard and brittle rod material are used to process the left and right sides of the hard and brittle rod material at the same time. According to the height of the hard and brittle rod material, the position of the first grinding assembly 73 and the second grinding assembly 74 is adjusted so that the first grinding assembly 73 and the second grinding assembly 74 can process hard and brittle rod materials of different heights.

[0122] See also Figures 11 to 13 The present embodiment relates to a clamping device 6 for clamping hard and brittle rods 8, comprising a clamping frame 61, a front clamping assembly 62 and a rear clamping rotating assembly 63, wherein the front clamping assembly 62 and the rear clamping rotating assembly 63 are arranged below the clamping frame 61, and the front clamping assembly 62 and the rear clamping rotating assembly 63 are arranged opposite to each other, and a space for clamping the hard and brittle rods 8 is left between the front clamping assembly 62 and the rear clamping rotating assembly 63; the rear clamping rotating assembly 63 is configured to clamp the hard and brittle rods 8 with the front clamping assembly 62, so that the hard and brittle rods 8 are suspended and clamped below the clamping frame 61, and the hard and brittle rods 8 can rotate axially.

[0123] In this embodiment, the front clamping assembly 62 and the rear clamping rotating assembly 63 are arranged below the clamping frame 61, and the rear clamping rotating assembly 63 is configured to clamp the hard and brittle bar 8 with the front clamping assembly 62, so that the hard and brittle bar 8 is suspended and clamped below the clamping frame 61, and the hard and brittle bar 8 can rotate around the axis. In this way, the clamping frame 61 is above the hard and brittle bar 8, avoiding interference between the clamping frame 61 and the rough grinding power head and the fine grinding power head, and facilitating the processing of the hard and brittle bar 8 by the rough grinding power head and the fine grinding power head.

[0124] In some embodiments, the material clamping device further includes an upper frame 65, and the clamping frame 61 is arranged on the upper frame 65, and the clamping frame 61 can slide relatively along the extension direction of the upper frame 65. In this embodiment, the upper frame 65 is arranged on the frame, and the upper frame 65 can be detachably arranged on the frame, which is convenient for installation and transportation of the upper frame 65. In this way, the clamping frame 61 can be arranged on the frame through the upper frame 65, thereby increasing the height of the clamping frame 61.

[0125] In some embodiments, a transmission screw 651 is provided on the upper frame 65, a nut matched with the transmission screw 651 is provided on the clamping frame 61, and the material clamping device further includes a sliding drive unit 762 (not shown), which is in transmission connection with the transmission screw 651 and is used to drive the clamping frame 61 to move relative to the upper frame 65. In this way, the transmission screw 651 can be rotated by the sliding drive unit 762, thereby realizing the movement of the clamping frame 61 on the upper frame 65, and conveniently controlling the position of the clamping frame 61. The sliding drive unit 762 is specifically a driving motor, which can accurately control the rotation of the transmission screw 651, thereby accurately controlling the position of the clamping frame 61.

[0126] In other embodiments, the sliding drive unit 762 may drive the clamping frame 61 to move on the upper frame 65 by means of a gear rack or a telescopic cylinder, which are all within the protection scope of this embodiment.

[0127] In some embodiments, see Fig.11 , two parallel slide rails 652 are arranged on the upper frame 65, and the two sides of the clamping frame 61 are respectively arranged on the slide rails 652 through sliders. In this way, the two sides of the clamping frame 61 are respectively arranged on the slide rails 652 through two sliders, and can be relatively moved smoothly along the extension direction of the slide rails 652 on the clamping frame 61.

[0128] In some embodiments, see Fig.12 The clamping frame 61 is provided with more than two weight-reducing holes 611. Thus, the weight of the clamping frame 61 can be reduced through the weight-reducing holes 611.

[0129] In some embodiments, see Fig.13 , the front clamping assembly 62 contacts one end of the hard and brittle bar 8 through the rotating member 64, and the rear clamping rotating assembly 63 contacts the other end of the hard and brittle bar 8 through the rotating member 64. The rear clamping rotating assembly 63 is used to drive the hard and brittle bar 8 to rotate around the axial direction. In this way, when processing the hard and brittle bar 8, two grinding devices 7 are used to process the two sides of the hard and brittle bar 8 respectively. After processing the two sides of the hard and brittle bar 8, the hard and brittle bar 8 can be rotated 90° through the cooperation of the rear clamping rotating assembly 63 and the rotating member 64, so that the other two sides of the hard and brittle bar 8 can be processed. At this time, a total of four sides of the hard and brittle bar 8 can be processed.

[0130] In some embodiments, the front clamping assembly 62 and / or the rear clamping rotating assembly 63 can slide forward and backward along the bottom of the clamping frame 61. In this way, the hard and brittle bar 8 can be clamped by sliding the front clamping assembly 62 and / or the rear clamping rotating assembly 63 forward and backward at the bottom of the clamping frame 61.

[0131] In some embodiments, the rear clamping rotating assembly 63 includes a clamping end 631 and a clamping driving unit, and the clamping driving unit is used to drive the clamping end 631 to approach or move away from the front clamping assembly 62 to clamp the hard and brittle bar 8. In this way, in this embodiment, the front clamping assembly 62 and the rear clamping rotating assembly 63 are fixed to the bottom of the clamping frame 61 and are immovable. The clamping driving unit can drive the clamping end 631 to extend and retract, thereby clamping the hard and brittle bar 8.

[0132] In this embodiment, during use of the clamping device 6, the hard and brittle rod 8 is transported to the bottom of the clamping device 6 through the loading device 4, and the clamping device 6 clamps the hard and brittle rod 8 through the rear clamping rotating assembly 63. After clamping, the sliding drive unit 762 drives the clamping frame 61 to move on the upper frame 65, and the grinding device 7 processes the two surfaces of the hard and brittle rod 8. After processing, the sliding drive unit 762 drives the clamping frame 61 to retreat, and the rear clamping rotating assembly 63 drives the hard and brittle rod 8 to rotate 90° around the axis, and the clamping frame 61 continues to move forward, and the grinding device 7 processes the other two surfaces of the hard and brittle rod 8. After processing, the clamping device 6 places the hard and brittle rod 8 on the receiving mechanism of the loading device 4.

[0133] During use, the feeding device 4 feeds the hard and brittle bar 8, and the clamping device 6 clamps the hard and brittle bar 8; before the grinding device 7 processes the hard and brittle bar 8, the distance sensor 75 extends through the sliding mechanism 76 to detect any three points on the side of the hard and brittle bar 8 to determine whether the side of the hard and brittle bar 8 is parallel to the grinding surface of the grinding device; if the side of the hard and brittle bar 75 is not perpendicular to the horizontal plane, the controller 77 controls the rear clamping rotating assembly to rotate the hard and brittle bar until the side of the hard and brittle bar is parallel to the grinding surface of the grinding device, or the side of the hard and brittle bar is close to being perpendicular to the horizontal plane. The distance sensor 75 is retracted through the sliding mechanism 76, and the grinding device 7 processes the hard and brittle bar 8. After the processing is completed, the hard and brittle bar is rotated by the clamping rotating assembly to process the other two surfaces of the hard and brittle bar 8; when processing two surfaces, the distance sensor 75 is also required to detect any three points on the side of the hard and brittle bar 8, and the above steps are repeated to finally complete the processing of the four surfaces of the hard and brittle bar 8.

[0134] Different from the prior art, this embodiment can detect any three points on the side of the hard and brittle bar stock by means of a distance sensor 75 disposed on the grinding device, thereby forming a plane to determine whether the side of the hard and brittle bar stock is parallel to the grinding surface of the grinding device; since the grinding surface of the grinding device is perpendicular to the horizontal plane, when the side of the hard and brittle bar stock is parallel to the grinding surface of the grinding device, the amount of grinding at this time is minimal, which is convenient for the processing of the grinding device. Secondly, since the distance sensor 75 is disposed on the grinding device through the sliding mechanism 76, when the grinding device is grinding the side of the hard and brittle bar stock, the distance sensor 75 can be retracted through the sliding mechanism 76, thereby protecting the distance sensor 75 and preventing the grinding chips from causing the distance sensor 75 to fail or damage the distance sensor 75.

[0135] It should be noted that, although the above embodiments have been described in this article, the patent protection scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, changes and modifications made to the embodiments described herein, or equivalent structures or equivalent process changes made using the contents of the present invention specification and drawings, directly or indirectly applying the above technical solutions to other related technical fields, are all included in the patent protection scope of the present invention.

Claims

1. A grinding device for processing hard and brittle bars, characterized in that: It includes a frame, a feeding device, a clamping device and a grinding device. The feeding device, the clamping device and the grinding device are all arranged on the frame, the feeding device is used to feed the hard and brittle bar material, the clamping device is used to clamp the hard and brittle bar material, and the grinding device is used to grind the hard and brittle bar material; The clamping device comprises a clamping frame, a front clamping assembly and a rear clamping rotating assembly, wherein the front clamping assembly and the rear clamping rotating assembly are arranged below the clamping frame, the front clamping assembly and the rear clamping rotating assembly are arranged opposite to each other, a space for clamping the hard and brittle bar is reserved between the front clamping assembly and the rear clamping rotating assembly, and the rear clamping rotating assembly is configured to clamp the hard and brittle bar with the front clamping assembly, so that the hard and brittle bar is suspended and clamped below the clamping frame, and the hard and brittle bar can rotate around the axial direction; The grinding device is provided with a distance sensor, the distance sensor is arranged toward the side of the hard and brittle bar material on the clamping device, the distance sensor is used to detect whether the side of the hard and brittle bar material on the clamping device is parallel to the grinding surface of the grinding device, and the distance sensor is arranged on the grinding device through a sliding mechanism; The grinding device is provided with more than three distance sensors, which are arranged in a vertical direction, and cooperate with each other to detect whether the side surface of the hard and brittle bar material is parallel to the grinding surface of the grinding device; The grinding device further comprises a controller, the controller is connected to and controls the rear clamping rotating assembly, the controller is used to receive signals from more than three distance sensors, and control the rear clamping rotating assembly according to the signals transmitted by more than three distance sensors, and the rear clamping rotating assembly is also used to rotate the hard and brittle bar; The sliding mechanism includes a sliding block and a sliding drive unit, the grinding device is provided with a sliding rail, three or more distance sensors are provided on the sliding block, the sliding block is provided on the sliding rail and can slide relatively along the extension direction of the sliding rail, and the sliding drive unit is used to drive the sliding block to slide relatively along the extension direction of the sliding rail; The sliding mechanism further includes a position sensor, the position sensor is used to detect the position of the sliding slider, and send the position signal of the sliding slider to the controller, the controller is connected to and controls the sliding drive unit, and the controller is also used to receive the position signal transmitted by the position sensor, and control the sliding drive unit according to the position signal transmitted by the position sensor; The front clamping assembly contacts one end of the hard and brittle bar through a rotating member, and the rear clamping rotating assembly contacts the other end of the hard and brittle bar through a rotating member. The rear clamping rotating assembly is used to drive the hard and brittle bar to rotate axially.

2. The grinding device according to claim 1, characterized in that The clamping device further comprises an upper frame, the clamping frame is arranged on the upper frame, and the clamping frame can slide relatively along the extension direction of the upper frame; The upper frame is provided with a transmission screw, the clamping frame is provided with a nut matched with the transmission screw, and the clamping device also includes a sliding drive unit, which is transmission-connected to the transmission screw and used to drive the clamping frame to move relative to the upper frame.

3. The grinding device according to claim 1, characterized in that: The grinding device includes a fixed frame, a lifting assembly, a first grinding assembly and a second grinding assembly, wherein the first grinding assembly and the second grinding assembly are arranged in the fixed frame, and the first grinding assembly and the second grinding assembly are arranged along a processing direction, wherein the lifting assembly is used to drive the first grinding assembly and the second grinding assembly to move in a vertical direction.

4. The grinding device according to claim 3, characterized in that The lifting assembly includes a lifting drive unit and a lifting platform. The first grinding assembly and the second grinding assembly are both arranged on the lifting platform. The lifting drive unit is arranged on the fixed frame. The output end of the lifting drive unit is transmission-connected to the lifting platform and is used to drive the lifting platform to move relative to each other in the vertical direction.

5. The grinding device according to claim 4, characterized in that The lifting assembly also includes a transmission unit and a lifting screw rod. An internal threaded hole matching the lifting screw rod is provided on the lifting platform. The lifting screw rod passes through the internal threaded hole and is transmission-connected to the lifting platform. The lifting drive unit is rotationally connected to the lifting screw rod through the transmission unit.

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