Square stator outer surface polishing device

Abstract

The utility model discloses a square stator outer surface polishing device which comprises a base, a rack, a conveying mechanism, a bearing mechanism and a polishing mechanism. The conveying mechanism is installed on the base, the bearing mechanism is movably arranged on the base and connected with the conveying mechanism, and the square stator is placed on the bearing mechanism; the conveying mechanism drives the bearing mechanism to do linear motion on the base; the rack is fixed on the base and is erected above the conveying mechanism; the grinding mechanism comprises a first side face grinding mechanism, a second side face grinding mechanism, a top edge grinding mechanism and a side edge grinding mechanism which are sequentially arranged in the conveying direction of the conveying mechanism. The polishing mechanisms are movably installed on the rack and used for polishing the two side faces, the chamfers of the top and the chamfers of the side portions of the square stator. According to the square stator polishing device, the position of the multi-leaf wheel can be rapidly adjusted, four side faces and four side edges of the outer wall of a square stator can be polished with low cost, time and labor are saved, and meanwhile harm to the health of operators is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of devices for grinding or polishing, in particular to a device for grinding the outer surface of a square stator. Background Art

[0002] There is a motor with an exposed stator core in the motor, which uses a square stator. The advantage is that the square stator core is exposed, and the heat dissipation is relatively excellent. However, the exposed core will cause adverse effects such as a decrease in the IP protection level of the motor, an increase in motor vibration, an increase in noise, and easy corrosion.

[0003] In order to eliminate or reduce the above adverse effects, the square stator needs to be dipped in varnish (insulating paint) once to prevent moisture, dissipate heat, insulate, fix, and protect the circuit, etc. After the square stator is dipped in varnish, there will be an irregular residue of varnish on the surface, which affects the appearance of the motor. It is necessary to grind the outer surface of the square stator to form a relatively smooth surface, which is conducive to the subsequent surface spraying.

[0004] The shape of the square stator is usually a cuboid, and chamfers are provided at the side edges of the cuboid; when grinding the outer surface of the square stator, it is necessary to grind the 4 side surfaces and 4 side edges of the outer wall of the square stator; the current grinding method usually uses manual grinding. Since the square stator is heavy, it is time-consuming and laborious to carry and flip the stator, and the dust generated during grinding is not conducive to the physical health of the operator; in addition, there are also semi-automatic grinding devices on the market, which do not require the operator to manually grind, but cannot handle square stators of different models and sizes. When the grinding wheel wears, it is also more cumbersome to adjust the grinding device; in order to achieve the function of full automation and adaptive adjustment, the cost of the grinding device will inevitably increase greatly; therefore, a low-cost device for grinding the outer surface of a square stator is needed, which can reduce costs, save time and effort, and reduce the harm to the health of the operator. Summary of the Utility Model

[0005] The main technical problems to be solved by the utility model are: the problem that the existing manual grinding method for square stators is time-consuming and laborious, and the dust generated during grinding is not conducive to the physical health of the operator, the problem that the adjustment method of the semi-automatic grinding device is not convenient, and the problem that the cost of the full-automatic grinding device is relatively high.

[0006] To solve the above technical problems, a technical solution adopted by the utility model is: to provide a device for grinding the outer surface of a square stator, which is used for grinding the outer surface of a square stator. The grinding device includes: a base, a frame, a conveying mechanism, a bearing mechanism, and a grinding mechanism;

[0007] The conveying mechanism is installed on the base. The carrying mechanism is movably arranged on the base and connected to the conveying mechanism. The square stator is placed on the carrying mechanism. The conveying mechanism drives the carrying mechanism to move linearly on the base.

[0008] The frame is fixed on the base and is erected above the conveying mechanism. The grinding mechanism includes a first side grinding mechanism, a second side grinding mechanism, a top edge grinding mechanism, and a side grinding mechanism arranged in sequence along the conveying direction of the conveying mechanism. The first side grinding mechanism, the second side grinding mechanism, the top edge grinding mechanism, and the side grinding mechanism are all movably installed on the frame and are arranged corresponding to the square stator.

[0009] As an improved scheme, a pair of slide rails are fixed on the upper surface of the base. The carrying mechanism includes a bottom plate and a stator placing frame fixed on the upper surface of the bottom plate. The stator placing frame is provided with a V-shaped groove with an upward opening, and the V-shaped groove is used to carry and limit the square stator. A plurality of pulleys matching the slide rails are fixed on the lower surface of the bottom plate, and a conveying connecting piece is fixed on the lower surface of the bottom plate.

[0010] The carrying mechanism is movably arranged on the base through the cooperation of the pulleys and the slide rails. The carrying mechanism is connected to the conveying mechanism through the conveying connecting piece.

[0011] As an improved scheme, the outer shape of the square stator is rectangular parallelepiped, and chamfers are provided at four edges of the square stator parallel to the center line of the square stator. When the square stator is placed in the V-shaped groove, the center line of the square stator is horizontally arranged, and two sides and three chamfers of the square stator are located outside the V-shaped groove.

[0012] As an improved scheme, the first side grinding mechanism, the second side grinding mechanism, the top edge grinding mechanism, and the side grinding mechanism have the same structure, and each includes: a bracket, a grinding motor, a coupling, a thousand-wheel shaft, a thousand-wheel, and an adjusting mechanism.

[0013] One side of the bracket is hinged on the frame, and the other side of the bracket is connected to the frame through the adjusting mechanism. The grinding motor is fixed on the frame. Both ends of the thousand-wheel shaft are installed on the frame through bearings. The main shaft of the grinding motor is connected to the thousand-wheel shaft through the coupling, and the thousand-wheel is installed on the thousand-wheel shaft.

[0014] The thousand-wheels of the first side grinding mechanism, the second side grinding mechanism, the top edge grinding mechanism, and the side grinding mechanism respectively correspond to two sides, the top chamfer, and a side chamfer of the square stator.

[0015] As an improved solution, the adjusting mechanism includes a first adjusting plate, a second adjusting plate, a long screw, a guiding column and a sliding sleeve; the first adjusting plate and the second adjusting plate are respectively hinged to the frame and the bracket, and the first adjusting plate and the second adjusting plate are arranged in parallel; the sliding sleeve is fixed on the second adjusting plate and penetrates through the second adjusting plate, one end of the guiding column is fixed on the first adjusting plate, and the other end of the guiding column passes through the sliding sleeve; threaded holes are formed in the middle positions of the first adjusting plate and the second adjusting plate, the long screw passes through the threaded holes of the first adjusting plate and the second adjusting plate and is in threaded connection with the threaded holes; the axis of the long screw is arranged parallel to the axis of the guiding column.

[0016] As an improved solution, there is a pair of guiding columns, and the two guiding columns are respectively located on both sides of the long screw.

[0017] As an improved solution, the conveying mechanism includes a conveying motor, a driving sprocket, a first driven sprocket, a second driven sprocket, a guiding sprocket and a chain; the first driven sprocket and the second driven sprocket are respectively installed at both ends of the frame through bearings, and the guiding sprocket is installed on the frame near the first driven sprocket through a bearing; the conveying motor is fixed on the frame near the guiding sprocket, and the driving sprocket is installed on the main shaft of the conveying motor; the chain sequentially bypasses the driving sprocket, the first driven sprocket, the second driven sprocket and the guiding sprocket.

[0018] As an improved solution, the conveying connecting piece is a chain connecting buckle, and the chain connecting buckle is connected to the chain.

[0019] As an improved solution, a retaining strip is arranged at the end of the V-shaped groove on the stator placing rack.

[0020] As an improved solution, two stator placing racks arranged along the length direction of the slide rail are provided on each bottom plate; when the square stator is placed in the V-shaped groove, the side surface of the square stator forms a 45° angle with the horizontal plane.

[0021] The beneficial effects of the present utility model are as follows: it can conveniently and quickly adjust the position of the thousand-leaf wheel according to the size of the square stator or the wear condition of the thousand-leaf wheel; it can polish the four side surfaces and four side edges of the outer wall of the square stator at a low cost, which is time-saving and labor-saving, and meanwhile reduces the harm to the health of the operator. Description of the Drawings

[0022] Figure 1 is a three-dimensional structural schematic diagram of a square stator outer surface grinding device of the present utility model;

[0023] Figure 2 It is a partial three-dimensional structural schematic diagram of a grinding device for the outer surface of a square stator of the present utility model;

[0024] Figure 3 It is a structural schematic diagram of a carrying mechanism in a grinding device for the outer surface of a square stator of the present utility model;

[0025] Figure 4 It is a three-dimensional structural schematic diagram of a first side grinding mechanism in a grinding device for the outer surface of a square stator of the present utility model;

[0026] Figure 5 It is a three-dimensional structural schematic diagram of a first side grinding mechanism from another perspective in a grinding device for the outer surface of a square stator of the present utility model;

[0027] Figure 6 It is a structural schematic diagram of a top edge grinding mechanism and a side edge grinding mechanism in a grinding device for the outer surface of a square stator of the present utility model;

[0028] Figure 7 It is a three-dimensional structural schematic diagram of a top edge grinding mechanism and a side edge grinding mechanism in a grinding device for the outer surface of a square stator of the present utility model;

[0029] Figure 8 It is a three-dimensional structural schematic diagram of a top edge grinding mechanism and a side edge grinding mechanism from another perspective in a grinding device for the outer surface of a square stator of the present utility model;

[0030] The markings of each component in the drawings are as follows: 1, base; 2, frame; 3, conveying mechanism; 4, carrying mechanism; 5, first side grinding mechanism; 6, second side grinding mechanism; 7, top edge grinding mechanism; 8, side edge grinding mechanism; 9, square stator;

[0031] 11, support; 12, grinding motor; 13, thousand-leaf wheel; 14, first adjusting plate; 15, second adjusting plate; 16, long screw; 17, guiding column; 18, sliding sleeve;

[0032] 31, conveying motor; 32, driving sprocket; 33, chain;

[0033] 41, bottom plate; 42, vertical plate; 43, cross bar; 44, stop bar; 45, pulley. Detailed implementation manners

[0034] The following elaborates on the preferred embodiments of the present utility model in conjunction with the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making the protection scope of the present utility model more clearly defined.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "top", "side", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0036] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features.

[0037] In the present utility model, unless otherwise clearly specified and defined, terms such as "installation", "connection", "fixation", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0038] In the present utility model, unless otherwise clearly specified and defined, the first feature being "above" or "below" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above" and "on the upper surface" of the second feature may be that the first feature is directly above or obliquely above the second feature, or merely indicates that the first feature has a higher horizontal height than the second feature. The first feature being "below" and "on the lower surface" of the second feature may be that the first feature is directly below or obliquely below the second feature, or merely indicates that the first feature has a lower horizontal height than the second feature.

[0039] Please refer to Figure 1-8 , the embodiments of the present utility model include:

[0040] A grinding device for the outer surface of a square stator, used for grinding the outer surface of the square stator 9. The grinding device includes: a base 1, a frame 2, a conveying mechanism 3, a bearing mechanism 4, and a grinding mechanism;

[0041] The conveying mechanism 3 is installed on the base 1. The bearing mechanism 4 is movably arranged on the base 1 and connected to the conveying mechanism 3. The square stator 9 is placed on the bearing mechanism 4. The conveying mechanism 3 drives the bearing mechanism 4 to perform a linear motion on the base 1;

[0042] The frame 2 is fixed on the base 1 and is arranged above the conveying mechanism 3. The grinding mechanism includes a first side grinding mechanism 5, a second side grinding mechanism 6, a top edge grinding mechanism 7 and a side edge grinding mechanism 8 arranged in sequence along the conveying direction of the conveying mechanism 3. It should be noted that the arrangement order of the first side grinding mechanism 5, the second side grinding mechanism 6, the top edge grinding mechanism 7 and the side edge grinding mechanism 8 can be adjusted according to actual needs. The first side grinding mechanism 5, the second side grinding mechanism 6, the top edge grinding mechanism 7 and the side edge grinding mechanism 8 are all movably installed on the frame 2 and are arranged corresponding to the square stator 9.

[0043] Furthermore, a pair of slide rails are fixed on the upper surface of the base 1. The carrying mechanism 4 includes a bottom plate 41 and a stator placing rack fixed on the upper surface of the bottom plate 41. The stator placing rack is provided with a V-shaped groove with an upward opening, and the V-shaped groove is used to carry and position the square stator 9. A plurality of pulleys 45 matching the slide rails are fixed on the lower surface of the bottom plate 41, and a conveying connecting piece is fixed on the lower surface of the bottom plate 41.

[0044] The carrying mechanism 4 is movably arranged on the base 1 through the cooperation of the pulleys 45 and the slide rails. The carrying mechanism 4 is connected to the conveying mechanism 3 through the conveying connecting piece.

[0045] The square stator 9 has a cuboid shape. Transition flanges are installed at both ends of the square stator 9. Chamfers are provided at four edges of the square stator 9 and the transition flanges that are parallel to the center line of the square stator 9. When the square stator 9 is placed in the V-shaped groove, the center line of the square stator 9 is horizontally arranged, and two sides and three chamfers of the square stator 9 are located outside the V-shaped groove. A stop bar 44 is provided at the position of the end of the V-shaped groove on the stator placing rack. Two stator placing racks arranged along the length direction of the slide rails are provided on each bottom plate 41. When the square stator 9 is placed in the V-shaped groove, the side surface of the square stator 9 forms a 45° angle with the horizontal plane.

[0046] The stator placing rack includes a cross bar 43 and a plurality of vertical plates 42 vertically fixed on the upper surface of the bottom plate 41. V-shaped openings are formed on the vertical plates 42, and there are a plurality of cross bars 43. The ends of the cross bars 43 are fixed at the V-shaped openings of the vertical plates 42.

[0047] Furthermore, the first side grinding mechanism 5, the second side grinding mechanism 6, the top edge grinding mechanism 7 and the side edge grinding mechanism 8 have the same structure, and each includes: a bracket 11, a grinding motor 12, a coupling, a thousand-wheel shaft, a thousand-wheel 13 and an adjusting mechanism.

[0048] One side of the bracket 11 is hinged to the frame 2 through a hinge, and the other side of the bracket 11 is connected to the frame 2 through the adjusting mechanism; the grinding motor 12 is fixed on the frame 2, both ends of the abrasive disc shaft are installed on the frame 2 through bearings, the main shaft of the grinding motor 12 is connected to the abrasive disc shaft through the coupling, and the abrasive disc 13 is installed on the abrasive disc shaft; when the grinding motor 12 operates, it drives the abrasive disc 13 to rotate through the coupling, so as to polish the outer surface of the square stator 9.

[0049] The abrasive discs 13 of the first side grinding mechanism 5, the second side grinding mechanism 6, the top edge grinding mechanism 7 and the side edge grinding mechanism 8 respectively correspond to the two sides, the top chamfer and one side chamfer of the square stator 9.

[0050] The adjusting mechanism includes a first adjusting plate 14, a second adjusting plate 15, a long screw 16, a guide post 17 and a sliding sleeve 18; the first adjusting plate 14 and the second adjusting plate 15 are respectively hinged to the frame 2 and the bracket 11, and the first adjusting plate 14 and the second adjusting plate 15 are arranged in parallel; the sliding sleeve 18 is fixed on the second adjusting plate 15 and penetrates through the second adjusting plate 15, one end of the guide post 17 is fixed on the first adjusting plate 14, and the other end of the guide post 17 passes through the sliding sleeve 18; threaded holes are provided at the middle positions of the first adjusting plate 14 and the second adjusting plate 15, the long screw 16 passes through the threaded holes of the first adjusting plate 14 and the second adjusting plate 15 and is threadedly connected to the threaded holes; the axis of the long screw 16 is parallel to the axis of the guide post 17. There is a pair of guide posts 17, and the two guide posts 17 are respectively located on both sides of the long screw 16; when it is necessary to adjust the position of the abrasive disc 13, rotating the long screw 16 can adjust the distance between the first adjusting plate 14 and the second adjusting plate 15. At this time, the first adjusting plate 14 rotates around the frame 2, the second adjusting plate 15 rotates around the bracket 11, and at the same time the other side of the bracket 11 rotates around the hinge, so as to adjust the position of the abrasive disc 13.

[0051] Furthermore, the conveying mechanism 3 includes a conveying motor 31, a driving sprocket 32, a first driven sprocket, a second driven sprocket, a guiding sprocket and a chain 33; the first driven sprocket and the second driven sprocket are respectively mounted at both ends of the frame 2 through bearings, and the guiding sprocket is mounted on the frame 2 near the first driven sprocket through a bearing; the conveying motor 31 is fixed on the frame 2 near the guiding sprocket, and the driving sprocket 32 is mounted on the main shaft of the conveying motor 31; the chain 33 successively bypasses the driving sprocket 32, the first driven sprocket, the second driven sprocket and the guiding sprocket and then returns to the driving sprocket 32. The conveying connecting piece is a chain connecting buckle, and the chain connecting buckle is connected with the chain 33. A chain guide rail is fixed on the base 1, and the chain guide rail is parallel to the slide rail, and the chain 33 passes through the chain guide rail.

[0052] When polishing the square stator 9, place the stator on the stator placement rack, the conveying motor 31 operates so that the chain 33 operates, and the chain 33 drives the stator to move back and forth on the slide rail. The thousand-leaf wheel 13 rotates. After the stator passes through the thousand-leaf wheel 13, first, two side faces and two chamfers are polished. After the polishing is completed, the stator is flipped, and then the other two side faces and two chamfers are polished.

[0053] The utility model can conveniently and quickly adjust the position of the thousand-leaf wheel according to the size of the square stator or the wear condition of the thousand-leaf wheel; it can polish the four side faces and four side edges of the outer wall of the square stator at a low cost, with high polishing efficiency, time-saving and labor-saving, and at the same time reduce the harm to the health of the operator.

[0054] The above are only the embodiments of the present utility model, and do not limit the patent scope of the present utility model accordingly. Any equivalent structure made by using the content of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, shall be similarly included in the patent protection scope of the present utility model.

Claims

1. A square stator outer surface grinding device, used for grinding the outer surface of a square stator (9); characterized in that: The grinding device comprises: a base (1), a frame (2), a transmission mechanism (3), a bearing mechanism (4) and a grinding mechanism; The conveying mechanism (3) is mounted on the base (1); the bearing mechanism (4) is movably disposed on the base (1) and connected to the conveying mechanism (3); the square stator (9) is placed on the bearing mechanism (4); the conveying mechanism (3) drives the bearing mechanism (4) to perform linear motion on the base (1); The frame (2) is fixed on the base (1) and is mounted above the conveying mechanism (3); the grinding mechanism comprises a first side grinding mechanism (5), a second side grinding mechanism (6), a top edge grinding mechanism (7) and a side edge grinding mechanism (8) which are sequentially arranged along the conveying direction of the conveying mechanism (3); the first side grinding mechanism (5), the second side grinding mechanism (6), the top edge grinding mechanism (7) and the side edge grinding mechanism (8) are all movably mounted on the frame (2) and are arranged corresponding to the square stator (9).

2. A square stator outer surface grinding device according to claim 1, characterized in that: A slide rail is fixed to the upper surface of the base (1); the bearing mechanism (4) comprises a bottom plate (41) and a stator placement frame fixed to the upper surface of the bottom plate (41); the stator placement frame is provided with a V-shaped groove with an opening facing upward, and the V-shaped groove is used to carry and limit the square stator (9); a plurality of pulleys (45) matching the slide rail are fixed to the lower surface of the bottom plate (41); and a transmission connection piece is fixed to the lower surface of the bottom plate (41); The bearing mechanism (4) is arranged on the base (1) through the cooperation of the pulley (45) and the slide rail; the bearing mechanism (4) is connected to the transmission mechanism (3) through the transmission connection piece.

3. A square stator outer surface grinding device according to claim 2, characterized in that: The square stator (9) has a rectangular shape, and chamfers are provided on four edges of the square stator (9) that are parallel to the center line of the square stator (9); when the square stator (9) is placed in the V-shaped groove, the center line of the square stator (9) is arranged horizontally, and two side surfaces and three chamfers of the square stator (9) are located outside the V-shaped groove.

4. A square stator outer surface grinding device according to claim 3, characterized in that: The first side grinding mechanism (5), the second side grinding mechanism (6), the top edge grinding mechanism (7) and the side edge grinding mechanism (8) have the same structure, and all comprise: a bracket (11), a grinding motor (12), a coupling, a flap wheel shaft, a flap wheel (13) and an adjustment mechanism; One side of the bracket (11) is hinged on the frame (2), and the other side of the bracket (11) is connected to the frame (2) via the adjustment mechanism; the grinding motor (12) is fixed to the frame (2), both ends of the flap wheel shaft are mounted on the frame (2) via bearings, the main shaft of the grinding motor (12) is connected to the flap wheel shaft via the coupling, and the flap wheel (13) is mounted on the flap wheel shaft; The flap wheels (13) of the first side grinding mechanism (5), the second side grinding mechanism (6), the top edge grinding mechanism (7) and the side edge grinding mechanism (8) correspond to two side surfaces, a top chamfer and a side chamfer of the square stator (9) in sequence.

5. A square stator outer surface grinding device according to claim 4, characterized in that: The adjustment mechanism comprises a first adjustment plate (14), a second adjustment plate (15), a long screw (16), a guide column (17) and a sliding sleeve (18); the first adjustment plate (14) and the second adjustment plate (15) are hinged on the frame (2) and the bracket (11) respectively, and the first adjustment plate (14) and the second adjustment plate (15) are arranged in parallel; the sliding sleeve (18) is fixed on the second adjustment plate (15) and passes through the second adjustment plate (15); one end of the guide column (17) is fixed on the first adjustment plate (14), and the other end of the guide column (17) passes through the sliding sleeve (18); the first adjustment plate (14) and the second adjustment plate (15) are both provided with threaded holes at the middle positions, the long screw (16) passes through the threaded holes of the first adjustment plate (14) and the second adjustment plate (15) and is threadedly connected with the threaded holes; the axis of the long screw (16) is arranged in parallel with the axis of the guide column (17).

6. A square stator outer surface grinding device according to claim 5, characterized in that: There is a pair of guide posts (17), and the two guide posts (17) are respectively located on both sides of the long screw rod (16).

7. A square stator outer surface grinding device according to claim 5, characterized in that: The transmission mechanism (3) comprises a transmission motor (31), a driving sprocket (32), a first driven sprocket, a second driven sprocket, a guide sprocket and a chain (33); the first driven sprocket and the second driven sprocket are respectively mounted at two ends of the frame (2) via bearings, and the guide sprocket is mounted on the frame (2) at a position close to the first driven sprocket via a bearing; the transmission motor (31) is fixed on the frame (2) at a position close to the guide sprocket, and the driving sprocket (32) is mounted on the main shaft of the transmission motor (31); and the chain (33) passes around the driving sprocket (32), the first driven sprocket, the second driven sprocket and the guide sprocket in sequence.

8. A square stator outer surface grinding device according to claim 7, characterized in that: The transmission connection piece is a chain connection buckle, and the chain connection buckle is connected to the chain (33).

9. A square stator outer surface grinding device according to claim 7, characterized in that: A blocking bar (44) is provided on the stator placement frame at a position located at the end of the V-shaped groove.

10. A square stator outer surface grinding device according to claim 9, characterized in that: Each base plate (41) is provided with two stator placement racks arranged along the length direction of the slide rail; when the square stator (9) is placed in the V-shaped groove, the side surface of the square stator (9) forms an angle of 45° with the horizontal plane.

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