CN110774162A - Grind quick-witted lower wall and grind machine - Google Patents
Grind quick-witted lower wall and grind machine Download PDFInfo
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- CN110774162A CN110774162A CN201910992726.0A CN201910992726A CN110774162A CN 110774162 A CN110774162 A CN 110774162A CN 201910992726 A CN201910992726 A CN 201910992726A CN 110774162 A CN110774162 A CN 110774162A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/27—Work carriers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B37/00—Lapping machines or devices; Accessories
- B24B37/34—Accessories
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
Abstract
The invention discloses a lower disc of a grinding machine and the grinding machine, wherein the lower disc of the grinding machine comprises a lower grinding disc, a lower disc inner ring and double motors for driving the lower grinding disc and the lower disc inner ring, and the double motors are respectively connected with the lower grinding disc and the lower disc inner ring; it is characterized in that the lower disc further comprises: the device comprises a lower disc outer ring, a supporting mechanism for clamping the lower disc outer ring and an auxiliary power mechanism for driving the lower disc outer ring to rotate; the lower disc outer ring is nested on the outer edge of the lower disc, and the lower disc, the lower disc inner ring and the lower disc outer ring can respectively rotate relatively. When grinding, can make the year dish of placing between lower wall inner ring and lower wall outer loop can the rotation under the drive of lower wall inner ring and lower wall outer loop, not only can guarantee the precision between the work piece ground, avoided simultaneously among the prior art carrying the inboard and outside atress phenomenon that distortion easily takes place of the side of dish, guaranteed the normal operation of grinding machine.
Description
Technical Field
The invention relates to the field of workpiece machining, in particular to a lower disc of a grinding machine and the grinding machine.
Background
In the field of workpiece processing, the application of the grinding machine is very wide, in particular to the field of workpiece processing of automobile parts, high-precision bearings, cutting tool measuring tools, refrigeration compressor parts, electronic components and the like. When the grinder is used, a ground workpiece needs to be placed in the carrying disc, and as the thickness of the existing electronic component (such as a mobile phone camera, a built-in chip and the like) is only a few millimeters, a thin carrying disc needs to be applied when the electronic component is ground, the thickness of the carrying disc needs to be slightly smaller than that of the ground electronic component so that the ground workpiece can be ground, the thickness of the common thin carrying disc is about 2-10 mm, and as the thickness of the carrying disc is thin, the carrying disc made of common plastic materials is very fragile, and a metal carrying disc needs to be used.
When the existing grinding machine works, the inner ring drives the carrying disc to rotate in a planetary gear transmission mode, and meanwhile the upper grinding disc and the lower grinding disc also rotate to grind a ground workpiece. Because the precision between each workpiece to be ground needs to be ensured, the rotating speed of the inner ring of the grinding machine needs to be far greater than that of the upper grinding disc and the lower grinding disc, and the relative speed of the inner ring and the outer ring can be very high under the condition that the outer ring does not rotate, so that the metal carrying disc is easily distorted and deformed, and the equipment is damaged.
Disclosure of Invention
In view of the above, the present invention has been made to provide a grinder bottom wall and a grinder that overcome or at least partially solve the above problems.
In a first aspect, an embodiment of the present invention provides a lower disc of a grinding machine, which may include a lower grinding disc 11, a lower inner disc ring 12, and a dual motor 2 that drives the lower grinding disc 11 and the lower inner disc ring 12; the lower plate 1 further comprises: the device comprises a lower disc outer ring 13, a supporting mechanism 14 for clamping the lower disc outer ring 13 and an auxiliary power mechanism 15 for driving the lower disc outer ring 13 to rotate;
the lower disc outer ring 13 is nested on the outer edge of the lower disc 11, and the lower disc 11, the lower disc inner ring 12 and the lower disc outer ring 13 can respectively rotate relatively.
Alternatively, the support mechanism 14 may include: at least two outer ring support members 141, a first servo motor 142, and a chain 143;
the at least two outer ring support members 141 collectively clamp the lower disc outer ring 13;
the output end of the first servo motor 142 is connected with at least one of the at least two outer ring supporting parts 141 to drive the connected outer ring supporting part 141 to move up and down;
at least two outer ring supporting members 141 are connected by the chain 143, so that the outer ring supporting member 141 connected with the first servo motor 142 and the outer ring supporting member 141 not connected with the first servo motor 142 are lifted and lowered synchronously.
Alternatively, the outer ring support member 141 may include: an outer ring clamping portion 1411 for clamping the outer ring of the lower disc, a lifting portion 1412 connected to the bottom of the outer ring clamping portion 1411, a first chain wheel 1413 connected to the bottom of the lifting portion 1412, wherein the bottom of at least one first chain wheel 1413 of the at least two support members 141 is connected to the output end of the first servo motor 142;
the chains 143 are engaged with the first sprockets 1413 of at least two of the outer ring support members 141, respectively.
Alternatively, the outer ring gripping portion 1411 may include: c-clamp bracket 1411a, gimbal ball 1411b, and cam bearing 1411C;
the universal balls 1411b are distributed on the inner side of the clamp bracket 1411a in the horizontal direction, and the upper end surface and the lower end surface of the lower disc outer ring 13 are respectively abutted against the spherical surface of the universal balls 1411 b;
the cam bearing 1411c is attached to the inside of the jig holder 1411a in the vertical direction, and the lower disc outer ring 13 abuts against the outer ring of the cam bearing 1411 c.
Optionally, the clamp bracket 1411a may include: a support top plate 1411a1, a support vertical plate 1411a2 connected with the edge of the support top plate 1411a1, a support bottom plate 1411a3 connected with the bottom edge of the support vertical plate 1411a2, and a support cross plate 1411a4 connected with the middle part of the support vertical plate 1411a 2; wherein,
the universal balls 1411b are distributed on the bracket top plate 1411a1 and the bracket bottom plate 1411a 3;
the cam bearing 1411c is axially and vertically mounted on the bracket cross plate 1411a 4;
the bottom of the rack bottom plate 1411a3 is connected to the lifting portion 1412.
Optionally, the lifting part 1412 may include: a lifting shaft 1412a connected to a bottom of the outer ring clamping portion 1411, a lifting nut 1412b connected to a bottom of the lifting shaft 1412a, and a screw shaft 1412c fitted into a hollow portion of the lifting shaft 1412a and the lifting nut 1412 b; wherein,
the first sprocket 1413 is nested at the bottom of the screw shaft 1412 c.
Optionally, the outer ring support member 141 may further include: a frame connection 1414 nested outside the lift 1412; wherein the frame connection 1414 may include: an upper attachment flange 1414a and a lower attachment flange;
the upper connecting flange 1414a is nested on the outer surface of the lifting shaft 1412 a; the lower connecting flange 1414b is nested on the outer surface of the lifting nut 1412b and the lead screw shaft 1412 c.
Optionally, the outer ring support member 141 may further include: a tensioner 1412d embedded in the bottom of the screw shaft 1412c and located at the bottom of the first chain wheel 1413.
Optionally, the outer ring support member 141 may further include: bearing 1415 and sleeve 1416;
the bearing portion 1415 is nested outside the lift 1412 and below the frame connection 1414; the sleeve portion 1416 is nested outside the lift portion 1412 and the bearing portion 1415 and is connected to the bottom end of the frame connecting portion 1414;
the bearing portion 1415 comprises at least one bearing nested outside the lift 1412 and below the frame connection 1414;
the sleeve portion 1416 may include: an intermediate sleeve 1416a and a bearing sleeve 1416 b; wherein,
the intermediate sleeve 1416a is nested outside the screw shaft 1412c and is connected to the bottom end of the lower connecting flange 1414 b; the bearing sleeve 1416b is nested outside the bearing portion 1415 and is connected to a bottom end of the intermediate sleeve 1416 a.
Optionally, the outer ring support member 141 may further include: a sensor assembly 1417 coupled to an outer surface of the lift portion 1412 and the sleeve portion 1416.
Specifically, the sensor assembly 1417 may include: a sensor holder 1417a, a photosensor 1417b, and a sensor bezel 1417 c; wherein,
the sensor holder 1417a is attached to the outer surface of the intermediate sleeve 1416 a; the photosensor 1417b is mounted on the sensor holder 1417 a; the sensor bezel 1417c is attached to the lift nut 1412b and extends through a cutout portion of the intermediate sleeve 1416 a.
Optionally, a first synchronous pulley 1418 is connected to the bottom of the first sprocket 1413 of the outer ring support member 141 connected to the output end of the first servo motor 142, a second synchronous pulley 1421 is connected to the output end of the first servo motor 142, and the first synchronous pulley 1418 and the second synchronous pulley 1421 are connected by a first synchronous belt 1422.
Optionally, the supporting mechanism 14 may further include: at least one chain support 144; wherein,
the chain support 144 and the outer ring support member 141 are connected by the chain 143.
Specifically, the chain support 144 may include: the chain wheel support plate 1441, a chain wheel shaft 1442 connected to the lower end of the chain wheel support plate 1441, a chain wheel bearing 1443 nested at the lower end of the chain wheel shaft 1442, and a second chain wheel 1444 nested outside the chain wheel bearing 1443; wherein,
the second sprocket 1444 is connected to the first sprocket 1413 at the bottom of the outer ring support member 141 by the chain 143.
Optionally, the auxiliary power mechanism 15 may include: a second servo motor 151 and a transmission part 152 connected with an output end of the second servo motor 151; wherein,
the transmission part 152 may include: a cylindrical gear 1521, a gear shaft 1522, a bearing sleeve 1523, a bearing bushing 1524, a bearing gland 1525 and a transmission sealing ring 1526; wherein,
the cylindrical gear 1521 is meshed with the lower disc outer ring 13; the gear shaft 1522 is connected to the cylindrical gear 1521; the bearing sleeve 1523 is nested on the outer surface of the gear shaft 1522; the bearing sleeve 1524 is nested on the outer surface of the bearing sleeve 1523; the bearing gland 1525 is positioned above the bearing bushing 1524 and is nested outside the gear shaft 1522; the transmission portion sealing ring 1526 is located between the bearing gland 1525 and the gear shaft 1522.
Optionally, an output end of the second servo motor 151 is connected to a third synchronous pulley 1511, a lower end of the gear shaft 1522 of the transmission portion 152 is connected to a fourth synchronous pulley 1527, and the third synchronous pulley 1511 is connected to the fourth synchronous pulley 1527 through a second synchronous belt 1512.
Optionally, the lower disc inner ring 12 and the lower disc outer ring 13 are gears, and the angular velocities of the lower disc inner ring 12 and the lower disc outer ring 13 and the proportional relationship between the tooth reference circle radii are as follows:
wherein, w
Inner partIs the angular velocity of the inner ring of the lower disc, r
Inner partThe radius of a reference circle, w, for the inner ring teeth of the lower disc
Outer coverIs the angular velocity of the outer ring of the lower disc, r
Outer coverThe radius of the reference circle of the outer ring teeth of the lower disc is the radius of the reference circle.
Optionally, the lower disc inner ring 12 and the lower disc outer ring 13 are involute gears.
Optionally, the lower disc outer ring 13 may include: an outer ring outer gear 131 and an outer ring inner gear 132 nested inside the outer ring outer gear 131; wherein, teeth are distributed on the outer portion of the outer ring outer gear 131 and the inner side of the outer ring inner gear 132.
In a second aspect, embodiments of the present invention provide a grinding mill comprising a grinding mill bottom wall according to the first aspect described above.
The technical scheme provided by the embodiment of the invention has the beneficial effects that at least:
the embodiment of the invention provides a lower disc of a grinding machine and the grinding machine, wherein the lower disc of the grinding machine comprises a lower grinding disc, a lower disc inner ring and a double motor for driving the lower grinding disc and the lower disc inner ring; it is characterized in that the lower disc further comprises: the device comprises a lower disc outer ring, a supporting mechanism for clamping the lower disc outer ring and an auxiliary power mechanism for driving the lower disc outer ring to rotate; the lower disc outer ring is nested on the outer edge of the lower disc, and the lower disc, the lower disc inner ring and the lower disc outer ring can respectively rotate relatively. When grinding, can make the year dish of placing between lower wall inner ring and lower wall outer loop can the rotation under the drive of lower wall inner ring and lower wall outer loop, not only can guarantee the precision between the work piece ground, avoided simultaneously among the prior art carrying the inboard and outside atress phenomenon that distortion easily takes place of the side of dish, guaranteed the normal operation of grinding machine.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view of the structure of a lower disc of a grinding machine provided in an embodiment of the present invention;
FIG. 2A is a schematic view of the structure of FIG. 1 from another angle;
FIG. 2B is a bottom view of FIG. 1;
FIG. 3 is a schematic structural diagram of a bottom wall and two motors provided in the embodiment of the present invention;
FIG. 4A is a schematic structural view of an outer ring support member provided in an embodiment of the present invention;
FIG. 4B is a cross-sectional view of FIG. 4A;
FIG. 5 is a schematic structural diagram of an outer ring clamping portion provided in an embodiment of the present invention;
FIG. 6A is a schematic structural diagram of a cylindrical KSM series gimbals provided in an embodiment of the present invention;
FIG. 6B is a schematic structural diagram of a straw hat type IA series universal ball provided in an embodiment of the present invention;
fig. 7 is a schematic structural view of a cam bearing provided in an embodiment of the present invention;
FIG. 8 is a schematic structural view of an intermediate sleeve provided in an embodiment of the present invention;
FIG. 9A is a detailed structural view of an outer ring support member provided in an embodiment of the present invention;
FIG. 9B is a cross-sectional view of FIG. 9A;
FIG. 10 is a schematic view of a chain stay according to an embodiment of the present invention;
fig. 11 is a schematic structural diagram of an auxiliary power mechanism according to an embodiment of the present invention;
FIG. 12 is a schematic structural diagram of a lower disk outer ring according to an embodiment of the present invention;
FIG. 13A is a perspective view of the lower portion of a grinding mill provided in accordance with an embodiment of the present invention;
FIG. 13B is a front view of FIG. 13A;
FIG. 13C is a cross-sectional view taken along line A-A of FIG. 13B;
FIG. 13D is a top view of FIG. 13A;
FIG. 13E is a cross-sectional view taken along line A-A of FIG. 13D;
wherein, 1 is a lower disc; 2 is a double motor; 3 is a grinder frame;
11 is a lower grinding disc; 12 is a lower disc inner ring; 13 is a lower disc outer ring; 14 is a supporting mechanism; 15 is an auxiliary power mechanism;
131 is an outer ring outer gear; 132 is an outer ring gear;
141 an outer ring support member; 142 is a first servo motor; 143 is a chain; 144 is a chain support; 151 is a second servo motor; 152 is a transmission part;
1411 is an outer ring clamping part; 1412 is a lifting part; 1413 is a first sprocket; 1414 is a rack connection; 1415, a bearing part; 1416 is a sleeve portion; 1417 is a sensor assembly; 1418 is a first timing pulley; reference numeral 1421 denotes a second timing pulley; 1422 is the first timing belt; 1441 is a chain wheel support plate; 1442 is a sprocket shaft; 1443 is a sprocket bearing; 1444 is a second sprocket; 1511 is the third synchronous pulley; 1512 is a second synchronous belt; 1521 is a cylindrical gear; 1522 is a gear shaft; 1523 it is a bearing set; 1524 is a bearing bush; 1525 is bearing gland; 1526 it is a transmission part sealing ring; 1527 is a fourth synchronous pulley;
1411a is a clamp bracket; 1411b is a universal ball; 1411c is a cam bearing; 1412a is a lifting shaft; 1412b is a lifting nut; 1412c is a screw shaft; 1412d is a tensioner; 1414a is an upper connecting flange; 1414b is a lower connecting flange; 1416a is an intermediate sleeve; 1416b is a bearing sleeve; 1417a is a sensor support; 1417b is a light sensor; 1417c is a sensor baffle;
1411a1 is a bracket top plate; 1411a2 is a support riser; 1411a3 is a bracket bottom plate; 1411a4 is a bracket cross plate.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Example 1
An embodiment of the present invention provides a grinder bottom plate, which may include, as shown in fig. 1, 2A and 2B: the grinding wheel comprises a lower grinding wheel 11, a lower grinding wheel inner ring 12 and a double motor 2 for driving the lower grinding wheel 11 and the lower grinding wheel inner ring 12, wherein the double motor 2 is respectively connected with the lower grinding wheel 11 and the lower grinding wheel inner ring 12. The lower plate 1 may further include: a lower disc outer ring 13, a supporting mechanism 14 for clamping the lower disc outer ring 13, and an auxiliary power mechanism 15 for driving the lower disc outer ring 13 to rotate; the lower disc outer ring 13 is nested on the outer edge of the lower grinding disc 11, and the lower grinding disc 11, the lower disc inner ring 12 and the lower disc outer ring 13 can respectively rotate relatively.
As shown in fig. 3, one of the motors drives the outer disk surface of the lower disk to rotate, and the other motor drives the inner ring of the lower disk to rotate. Of course, the double motors are connected through the flange, and the output ends of the double motors output power to the lower disc in a shaft sleeve shaft mode. The motor model is SA67-Y2 in the embodiment of the present invention, and the motor model is not particularly limited in the embodiment of the present invention.
According to the lower disc of the grinding machine provided by the embodiment of the invention, when the grinding machine works, the lower grinding disc, the lower disc inner ring and the lower disc outer ring of the grinding machine can respectively rotate relatively, so that the carrying disc placed between the lower disc inner ring and the lower disc outer ring can rotate under the driving of the lower disc inner ring and the lower disc outer ring, the precision between the ground workpieces can be ensured, the phenomenon that the distortion is easily caused due to the uneven stress on the inner side and the outer side of the carrying disc in the prior art is avoided, and the normal operation of the grinding machine is ensured.
In an alternative embodiment, as shown in fig. 1 and 2A, the support mechanism 14 may include: at least two outer ring support members 141, a first servo motor 142, and a chain 143; the at least two outer ring support members 141 collectively hold the lower disc outer ring 13.
The output end of the first servo motor 142 is connected to at least one of the at least two outer ring support members 141 to drive the connected outer ring support members 141 to move up and down; at least two outer ring supporting members 141 are connected by a chain 143 so that the outer ring supporting member 141 connected with the first servo motor 142 and the outer ring supporting member 141 not connected with the first servo motor 142 are lifted and lowered synchronously.
Specifically, referring to fig. 1 and fig. 2A, the support mechanism 14 provided in the embodiment of the present invention includes: four outer ring support members 141 and a first servo motor 142, wherein the four outer ring support members 141 can stably hold the lower disk outer ring 13 while ensuring that the lower disk outer ring 13 can rotate on the four outer ring support members 141. The four outer ring supporting members 141 are connected by chains 143, when the lower disc outer ring 13 needs to be lifted, only one first servo motor 142 is needed to drive any one of the outer ring supporting members 141 to be lifted, and the rest of the outer ring supporting members 141 can be lifted synchronously under the driving of the chains 143 to complete the lifting of the lower disc outer ring 13. The outer ring supporting component provided by the embodiment of the invention can firstly ensure that the outer ring of the lower disc rotates on the outer ring supporting component, secondly, the lifting of the outer ring of the lower disc facilitates the loading and unloading of the ground workpiece and the carrier disc, and the lifting position of the outer ring of the lower disc can be adjusted to facilitate the replacement and cleaning of the lower grinding disc, thereby further facilitating the use of the grinding machine and improving the working efficiency.
More specifically, as shown in fig. 1, 2A, 4A, and 4B, the outer ring support member 141 may include: an outer ring holding portion 1411 for holding the lower disc outer ring 13, an elevating portion 1412 connected to a bottom portion of the outer ring holding portion 1411, and a first sprocket 1413 connected to a bottom portion of the elevating portion 1412. Wherein, the bottom of at least one first chain wheel 1413 in at least two supporting parts 141 is connected with the output end of the first servo motor 142; the chain 143 engages with the first sprockets 1413 of at least two outer ring support members 141, respectively. In the embodiment of the invention, the outer ring supporting component drives the lifting part to lift through the rotation of the first chain wheel, so that the outer ring clamping part is driven to lift, and finally the outer ring of the lower disc is driven to lift together.
In a specific embodiment, as shown in fig. 4A, 4B and 5, the outer ring holding portion 1411 may include: a C-shaped clamp bracket 1411a, a gimballed ball 1411b, and a cam bearing 1411C; the universal balls 1411b are distributed horizontally inside the C-shaped clip holder 1411a, and the upper end surface and the lower end surface of the lower disc outer ring 13 are in contact with the spherical surface of the universal balls 1411 b; the cam bearing 1411C is vertically connected to the inside of the C-clamp holder 1411a, and the teeth of the lower disc outer ring are in contact with the outer ring of the cam bearing 1411C.
The function of the universal ball 1411b and the cam bearing 1411c is to position the outer ring of the lower disk first, and to ensure that the clamped outer ring of the lower disk can rotate on the universal ball 1411b and the cam bearing 1411 c. In the embodiment of the present invention, the universal balls 1411b are distributed on the upper and lower inner surfaces of the C-shaped clip holder 1411a, and are respectively connected to the upper end surface and the lower end surface of the lower disc outer ring, and as shown in the figure, the universal balls 1411b realize longitudinal positioning of the lower disc outer ring and are distributed on the upper and lower inner surfaces of the C-shaped clip holder 1411 a. In the embodiment of the present invention, the universal ball 1411B may be a cylindrical KSM-series universal ball as shown in fig. 6A, or may be a straw hat-shaped IA-series universal ball as shown in fig. 6B, and the type of the universal ball is not particularly limited in the embodiment of the present invention. The cylindrical universal ball provided by the embodiment of the invention is arranged on the bottom plate of the support, the straw hat-shaped universal ball is arranged on the top plate of the support, and as long as the center of the universal ball is positioned on the upper end surface and the lower end surface of the outer ring in the vertical direction, the outer ring of the lower disc can be longitudinally positioned and the outer ring of the lower disc can be ensured to rotate on the universal ball. The cam bearing 1411C realizes radial positioning of the lower disc outer ring, the cam bearing provided in the embodiment of the present invention is fixed inside the C-shaped clamp bracket 1411a by bolts and nuts, and the outer ring of the cam bearing abuts against the lower disc outer ring to realize radial positioning of the lower disc outer ring, referring to fig. 7, which is a schematic structural diagram of the cam bearing, the type of the cam bearing in the embodiment of the present invention may be CFxx, or CFxxF, and the above type is not specifically limited in the embodiment of the present invention.
More specifically, referring to fig. 5, the C-clamp holder 1411a may include: a bracket top plate 1411a1, a bracket vertical plate 1411a2 connected with the edge of the bracket top plate 1411a1, a bracket bottom plate 1411a3 connected with the bottom edge of the bracket vertical plate 1411a2 and a bracket transverse plate 1411a4 connected with the middle part of the bracket vertical plate 1411a 2; wherein, the universal balls 1411b are distributed on the bracket top plate 1411a1 and the bracket bottom plate 1411a 3; the cam bearing 1411c is axially and vertically mounted on the bracket cross plate 1411a 4; the bottom of the support base 1411a3 is connected to the lift shaft.
The outer ring clamping part provided by the embodiment of the invention can enable the outer ring of the lower disc to rotate freely when clamped at the outer ring clamping part, reduce the relative speed of the inner ring and the outer ring of the grinding machine through the rotation of the outer ring of the lower disc, and complete the rotation of the carrier disc, thereby ensuring the precision among various ground devices, and avoiding the phenomena of distortion, deformation, equipment damage and the like of the carrier disc due to uneven stress of the inner ring and the outer ring.
In a specific embodiment, as shown in fig. 4A and 4B, the lifting part 1412 may include: a lifting shaft 1412a connected to a bottom of the outer ring clamping portion, a lifting nut 1412b connected to a bottom of the lifting shaft 1412a, and a screw shaft 1412c fitted into a hollow portion of the lifting shaft 1412a and the lifting nut 1412 b; the first sprocket 1413 is nested at the bottom of the screw shaft 1412 c.
In an alternative embodiment, as shown in fig. 4A and 4B, the outer ring support member may further include: a frame connecting portion 1414 fitted to the outside of the lifting portion 1412; the outer ring support member is in use, the frame attachment 1414 is removably attached to the mill frame.
Specifically, as shown in fig. 4A and 4B, the frame connection 1414 may include: an upper attachment flange 1414a and a lower attachment flange 1414 b; wherein, the upper connecting flange 1414a is nested on the outer surface of the lifting shaft 1412 a; the lower connecting flange 1414b is fitted on the outer surfaces of the lifting nut 1412b and the screw shaft 1412 c; the upper attachment flange 1414a and the lower attachment flange 1414b may be removably attached to the mill frame, respectively. In the mechanical field, flange connection is a detachable joint which is formed by fixing two pipelines, pipe fittings or equipment on a flange respectively, adding a flange pad between the two flanges, and finally tightening the two flanges by bolts to tightly combine the two flanges. The embodiment of the invention is to facilitate that the outer ring support member can be mounted with its upper part on the upper part of the mill stand and with its lower part on the lower part of the mill stand, thus dividing the attachment flange into an upper attachment flange and a lower attachment flange. After the connection is completed, the connection between the connecting flange and the grinder frame needs to be sealed to prevent the grinding fluid from flowing into the motor or the cylinder at the lower part of the grinder frame, so as to avoid affecting the operation of the grinder.
In an alternative embodiment, as shown with reference to fig. 4A and 4B, the lift 1412 of the outer ring support member 141 may further include: a tensioner 1412 d; the tensioner 1412d is embedded in the bottom of the screw shaft 1412c and is located at the bottom of the first chain wheel 1413. The tensioner acts on a timing belt or a timing chain of the engine, plays a role in guiding and tensioning the timing belt or the timing chain, and is always in the optimal tensioning state. The tensioner provided by the embodiment of the invention is a mechanical tensioner, can automatically adjust the tensioning degree of the timing belt and the timing chain, and the specific model of the tensioner is not particularly limited in the embodiment of the invention.
In an alternative embodiment, as shown in fig. 9A and 9B, the outer ring support member 141 may further include: bearing 1415 and sleeve 1416; the bearing portion 1415 is fitted to the outside of the lifter 1412 and positioned below the frame connecting portion 1414; the sleeve portion 1416 is fitted around the lifter portion 1412 and the bearing portion 1415 and connected to the bottom end of the frame connecting portion 1414.
In an alternative embodiment, the bearing portion includes at least one bearing nested outside the lifting portion and located at a lower portion of the connecting portion of the rack, specifically, the bearing may include two separate bearings and a bearing pad for fixing the bearing, and may also include an oil seal ring, the bearing may be a tapered roller bearing, the type of the bearing applied in the embodiment of the present invention is 33006, and of course, other types of bearings may also implement the rotation of the lifting portion, and this type is not specifically limited in the embodiment of the present invention.
The sleeve portion 1416 may include: an intermediate sleeve 1416a and a bearing sleeve 1416 b; wherein the intermediate sleeve 1416a is nested outside the lead screw shaft 1412c and is connected to the bottom end of the lower connecting flange 1414 b; the bearing sleeve 1416b is fitted around the bearing portion 1415 and connected to the bottom end of the intermediate sleeve 1416 a. The middle sleeve mainly plays a role in connection, and the bearing sleeve mainly protects a bearing in the bearing part and avoids entering dust or water stain in the bearing. The added intermediate sleeve facilitates the mounting of the components since the bearing sleeve needs to be fixed, if not the intermediate sleeve, and can also be fixed separately to the bottom of the lower connecting flange, but this results in a longer tapping distance. Referring to fig. 8, the middle sleeve is provided with bolt holes, and is connected with the upper lower connecting flange and the lower bearing sleeve through bolts (the bolt hole on one side is connected with the upper lower connecting flange and the bolt hole on one side is connected with the lower bearing sleeve, so that the defect of long tapping is avoided), and one side of the middle sleeve is provided with a notch, so that the installation and the application of the sensor assembly are facilitated.
In an alternative embodiment, as shown in fig. 9A and 9B, the outer ring support member 141 may further include: and a sensor unit 1417 connected to the outer surfaces of the elevating portion 1412 and the sleeve portion 1416.
Specifically, the sensor assembly 1417 may include: a sensor holder 1417a, a photosensor 1417b, and a sensor bezel 1417 c; wherein the sensor holder 1417a is attached to an outer surface of the intermediate sleeve 1416 b; the photosensor 1417b is mounted on the sensor holder 1417 a; the sensor flapper 1417c is coupled to the lifting nut 1412b and passes through a cut portion of the intermediate sleeve 1416 b. The sensor provided by the embodiment of the invention is a light-sensitive correlation sensor, when the lifting nut drives the sensor baffle to move to a certain position, if the sensor baffle is just blocked between two sensors, the sensor can transmit a signal, namely the movement is stopped, and the lifting height of the outer ring of the lower disc when different types of carrying discs are applied is controlled by adjusting the position of the sensor.
In an alternative embodiment, as shown in fig. 1 and 2A, the supporting mechanism 14 may further include: a first timing pulley 1418 is connected to a bottom of the first sprocket 1413 of the outer ring support member 141 connected to an output end of the first servo motor 142, a second timing pulley 1421 is connected to an output end of the first servo motor 142, and the first timing pulley 1418 and the second timing pulley 1421 are connected to each other by a first timing belt 1422. In the embodiment of the present invention, the first synchronous pulley 1418 is connected to a screw shaft of the outer ring support member through a screw, and the C-shaped clamp bracket of the outer ring support member connected to the first synchronous pulley 1418 can be driven to lift and lower by the rotation of the first synchronous pulley 1418.
In an alternative embodiment, referring to fig. 1, the supporting mechanism 14 may further include: at least one chain support 144; the chain support 144 and the outer ring support member 141 are connected by the chain 143. Since the outer ring support members are distributed around the double motors, and when the chain connects the outer ring support members, the double motors and other equipment need to be wound, the chain support members are needed to change the running direction of the chain.
Specifically, referring to fig. 10, the chain supporting member 144 may include: a sprocket support plate 1441, a sprocket shaft 1442 connected to a lower end of the sprocket support plate 1441, a sprocket bearing 1443 fitted in a lower end of the sprocket shaft 1442, and a second sprocket 1444 fitted outside the sprocket bearing 1443; wherein, when the chain support is used, the chain wheel support plate is fixedly connected to the grinder frame; the second chain wheel is connected with the first chain wheel at the bottom of the outer ring supporting component through the chain. According to the chain support provided by the embodiment of the invention, the chain support can be installed according to the actual positions of all parts in the lower disc of the grinding machine, and the trend of the chain can be effectively controlled.
In an alternative embodiment, referring to fig. 2A, the auxiliary power mechanism 15 may include: a second servo motor 151 and a transmission part 152, wherein the second servo motor 151 is connected with the transmission part 152; when the grinding machine is applied, the second servo motor and the transmission part are connected to the frame of the grinding machine, the second servo motor drives the transmission part to rotate, and therefore the transmission part drives the outer ring of the lower disc to rotate.
Specifically, as shown in fig. 11, the transmission part 152 may include: a cylindrical gear 1521, a gear shaft 1522, a bearing sleeve 1523, a bearing bushing 1524, a bearing gland 1525 and a transmission sealing ring 1526; wherein, the cylindrical gear 1521 is engaged on the lower disc outer ring 13; the gear shaft 1522 is connected to the cylindrical gear 1521; the bearing sleeve 1523 is fitted around the outer surface of the gear shaft 1522; the bearing bushing 1524 is fitted to an outer surface of the bearing sleeve 1523; the bearing gland 1525 is connected to the bearing bushing 1524 and is fitted to the outside of the gear shaft 1522; the transmission portion sealing ring 1526 is positioned between the bearing gland 1525 and the gear shaft 1522; in use, the bearing bushing and the bearing gland may be removably connected to the grinder frame, respectively.
The bearing kit provided by the embodiment of the invention comprises a bearing sleeve nested outside the gear shaft and bearings positioned at the upper end and the lower end of the bearing sleeve, the bearings provided by the embodiment of the invention are deep groove ball bearings, and the types of the bearings are not particularly limited. The transmission part provided by the embodiment of the invention can effectively drive the lower disc outer ring to rotate, so that the speed difference between the lower disc outer ring and the lower disc inner ring is reduced, and the deformation of disc loading and coiling in the grinding process is avoided.
In an alternative embodiment, referring to fig. 2A, an output end of the second servo motor 151 is connected to a third timing pulley 1511, a lower end of a gear shaft 1522 of the transmission portion 152 is connected to a fourth timing pulley 1527, and the third timing pulley 1511 and the fourth timing pulley 1527 are connected by a second timing belt 1512.
In an alternative embodiment, referring to fig. 1 and 2A, the lower disk inner ring 12 and the lower disk outer ring 13 are gears, and the angular velocities and the tooth pitch radii of the lower disk inner ring 12 and the lower disk outer ring 13 are in the following proportion:
wherein, w
Inner partIs the angular velocity of the inner ring of the lower disc, r
Inner partThe radius of a reference circle, w, for the inner ring teeth of the lower disc
Outer coverIs the angular velocity of the outer ring of the lower disc, r
Outer coverThe radius of the reference circle of the outer ring teeth of the lower disc is the radius of the reference circle.
In the embodiment of the invention, when the lower disc of the grinding machine is used for grinding, in order to prevent the carrier disc from being distorted and deformed, firstly, the outer ring of the lower disc and the inner ring of the lower disc need to be ensured to rotate oppositely, and the carrier disc clamping teeth between the outer ring of the lower disc and the inner ring of the lower disc are avoided under the condition of rotating in the same direction. Because the transmission ratio of the epicyclic gear train can not be directly calculated, the epicyclic gear train can be converted into an imaginary ordinary gear train by utilizing the principle of relative motion, and then the calculation formula of the transmission ratio of the ordinary gear train is utilized to calculate the epicyclic gear train, namely, an inversion method or a conversion mechanism method is adopted. Preferably, the linear velocities at the engagement points of the lower disc inner ring and the lower disc outer ring with the carrier disc are equal, and if the linkage is made stationary, the epicyclic gear train is converted into an ordinary gear train, and a common angular velocity of "-W" is added to the whole epicyclic gear train, so that the tie bars become relatively stationary, thereby obtaining the imaginary ordinary gear train.
In an alternative embodiment, as shown in fig. 1 and 2A, the lower disk inner ring 12 and the lower disk outer ring 13 are involute gears. Compared with a cycloid gear, the involute gear has the advantage of unchanged angular speed ratio, and the positive pressure direction on the contact point of the involute tooth form is always tangent to the base circle of the involute, so that the constant transmission ratio during meshing can be ensured.
In an alternative embodiment, as shown in fig. 1, 2A and 12, the lower disk outer ring 13 may include: an outer ring outer gear 131 and an outer ring inner gear 132 fitted inside the outer ring outer gear 131; teeth are distributed on the outer portion of the outer ring outer gear 131 and the inner side of the outer ring inner gear 132. In the embodiment of the invention, because the outer side teeth and the inner side teeth of the upper disc outer ring are correspondingly abraded in the grinding process, and the outer side teeth are abraded greatly, only the outer side gear needs to be replaced when the upper disc outer ring is replaced, the grinding machine is convenient and quick, and resources are saved.
Example 2
An embodiment of the present invention provides a grinder including the grinder bottom plate of embodiment 1 above.
In one particular embodiment, as shown with reference to fig. 13A-13E, the grinder includes: a grinder frame, in which a lower disc and a dual motor are installed in a lower disc of the grinder, more specifically, the lower disc in the lower disc is installed in the grinder frame through a lower disc flange, and an outer ring support member in the support structure is connected to the grinder frame through an upper connection flange and a lower connection flange in a frame connection part; a first servomotor in the support structure is mounted inside the grinder frame by means of a motor support bracket (not shown in the figures); a chain support in the supporting structure is arranged inside the grinder frame through a chain wheel support plate; a second servo motor of the auxiliary power mechanism is arranged on the inner side of the grinder frame through a motor support frame (not shown in the figure); the transmission part of the auxiliary power mechanism is arranged on the frame of the grinding machine through a bearing bush and a bearing gland.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. The present disclosure is not limited to the precise structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A grinder bottom plate comprises a bottom grinding disc (11), a bottom plate inner ring (12) and a double motor (2) for driving the bottom grinding disc (11) and the bottom plate inner ring (12); it is characterized in that the grinder bottom wall further comprises: the device comprises a lower disc outer ring (13), a supporting mechanism (14) for clamping the lower disc outer ring (13) and an auxiliary power mechanism (15) for driving the lower disc outer ring (13) to rotate;
the lower disc outer ring (13) is nested on the outer edge of the lower disc (11), and the lower disc (11), the lower disc inner ring (12) and the lower disc outer ring (13) can respectively rotate relatively.
2. A grinder bottom plate according to claim 1, characterized in that said support means (14) comprise: at least two outer ring support members (141), a first servo motor (142), and a chain (143);
the at least two outer ring support members (141) clamp the lower disc outer ring (13) together;
the output end of the first servo motor (142) is connected with at least one of the at least two outer ring supporting parts (141) to drive the connected outer ring supporting part (141) to lift;
at least two outer ring supporting parts (141) are connected through the chain (143), so that the outer ring supporting part (141) connected with the first servo motor (142) and the outer ring supporting part (141) not connected with the first servo motor (142) can be lifted synchronously.
3. A grinder bottom wall as claimed in claim 2, characterised in that:
the outer ring support member (141) includes: an outer ring clamping part (1411) for clamping the lower disc outer ring (13), a lifting part (1412) connected to the bottom of the outer ring clamping part (1411), a first chain wheel (1413) connected to the bottom of the lifting part (1412), wherein the bottom of at least one first chain wheel (1413) of the at least two support parts (141) is connected with the output end of the first servo motor (142);
the chains (143) are engaged with the first sprockets (1413) of at least two of the outer ring support members (141), respectively.
4. A grinder bottom plate according to claim 3, characterized in that the outer ring grip (1411) comprises: a C-shaped clamp bracket (1411a), a universal ball (1411b), and a cam bearing (1411C);
the universal balls (1411b) are distributed on the inner side of the clamp bracket (1411a) in the horizontal direction, and the upper end surface and the lower end surface of the lower disc outer ring (13) are respectively abutted with the spherical surface of the universal balls (1411 b);
the cam bearing (1411c) is connected to the inside of the jig holder (1411a) in the vertical direction, and the lower disc outer ring (13) abuts against the outer ring of the cam bearing (1411 c).
5. A grinder bottom wall as claimed in claim 3, characterised in that the lift (1412) comprises: a lifting shaft (1412a) connected with the bottom of the outer ring clamping part (1411), a lifting nut (1412b) connected with the bottom of the lifting shaft (1412a), and a screw shaft (1412c) embedded in the hollow part of the lifting shaft (1412a) and the lifting nut (1412 b); wherein,
the first sprocket (1413) is nested at the bottom of the screw shaft (1412 c).
6. A grinder bottom plate according to claim 5, characterized in that the outer ring support member (141) further comprises: a frame connection (1414) nested outside the lift (1412);
wherein the rack connection (1414) comprises: an upper connecting flange (1414a) and a lower connecting flange (1414 b);
the upper connecting flange (1414a) is nested on the outer surface of the lifting shaft (1412 a); the lower connecting flange (1414b) is nested on the outer surface of the lifting nut (1412b) and the screw shaft (1412 c).
7. A grinder bottom plate according to claim 2, characterized in that the support means (14) further comprise: at least one chain support (144); the chain support (144) comprises: the chain wheel support plate (1441), a chain wheel shaft (1442) connected to the lower end of the chain wheel support plate (1441), a chain wheel bearing (1443) nested at the lower end of the chain wheel shaft (1442), and a second chain wheel (1444) nested outside the chain wheel bearing (1443); wherein,
the second chain wheel (1444) is connected with the first chain wheel (1413) at the bottom of the outer ring support member (141) by the chain (143).
8. A grinder bottom wall according to claim 1, characterised in that the auxiliary power mechanism (15) comprises: the servo motor comprises a second servo motor (151) and a transmission part (152) connected with the output end of the second servo motor (151); wherein,
the transmission section (152) includes: the device comprises a cylindrical gear (1521), a gear shaft (1522), a bearing kit (1523), a bearing bushing (1524), a bearing gland (1525) and a transmission part sealing ring (1526); wherein,
the cylindrical gear (1521) is meshed with the lower disc outer ring (13); the gear shaft (1522) is connected to the cylindrical gear (1521); the bearing sleeve (1523) is nested on the outer surface of the gear shaft (1522); the bearing bushing (1524) is nested on the outer surface of the bearing sleeve (1523); the bearing gland (1525) is located above the bearing bushing (1524) and nested outside the gear shaft (1522); the transmission part sealing ring (1526) is located between the bearing gland (1525) and the gear shaft (1522).
9. A grinder bottom plate according to any one of claims 1 to 8, characterized in that the bottom plate inner ring (12) and the bottom plate outer ring (13) are gears, and the angular velocities and the tooth pitch radii of the bottom plate inner ring (12) and the bottom plate outer ring (13) are in the following relationship:
wherein, w
Inner partIs the angular velocity of the inner ring of the lower disc, r
Inner partThe radius of a reference circle, w, for the inner ring teeth of the lower disc
Outer coverIs the angular velocity of the outer ring of the lower disc, r
Outer coverThe radius of the reference circle of the outer ring teeth of the lower disc is the radius of the reference circle.
10. A grinding mill comprising a grinding mill bottom wall according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910992726.0A CN110774162A (en) | 2019-10-18 | 2019-10-18 | Grind quick-witted lower wall and grind machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910992726.0A CN110774162A (en) | 2019-10-18 | 2019-10-18 | Grind quick-witted lower wall and grind machine |
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| CN110774162A true CN110774162A (en) | 2020-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910992726.0A Pending CN110774162A (en) | 2019-10-18 | 2019-10-18 | Grind quick-witted lower wall and grind machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115401604A (en) * | 2022-08-14 | 2022-11-29 | 北京特思迪设备制造有限公司 | Lower disc driving device and lubricating structure of grinding machine |
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| JP2000061829A (en) * | 1998-08-24 | 2000-02-29 | Speedfam-Ipec Co Ltd | Surface polishing device with internal gear elevating mechanism |
| JP2001138215A (en) * | 1999-11-16 | 2001-05-22 | Speedfam Co Ltd | Grinding apparatus |
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| CN115401604A (en) * | 2022-08-14 | 2022-11-29 | 北京特思迪设备制造有限公司 | Lower disc driving device and lubricating structure of grinding machine |
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