CN217992002U

CN217992002U - Blade grinding device with reciprocating motion

Info

Publication number: CN217992002U
Application number: CN202221448723.4U
Authority: CN
Inventors: 袁人炜; 杨学森; 董伊鑫; 汪力
Original assignee: Shanghai United Engine Power Technology Co ltd
Current assignee: Shanghai United Engine Power Technology Co ltd
Priority date: 2022-06-10
Filing date: 2022-06-10
Publication date: 2022-12-09
Anticipated expiration: 2032-06-10

Abstract

The utility model relates to a blade field of polishing just discloses a take reciprocating motion's blade grinding device, which comprises a supporting table, the top fixed mounting of brace table has reciprocating motion device, reciprocating motion device's movement track route is reciprocating motion three, reciprocating motion device's top sets up pressure head constant force device, the movement track of constant force device is constant force motion, the top of constant force device is provided with the power main shaft, the one end of power main shaft is provided with collet chuck, install the emery wheel connecting rod among the collet chuck, this take reciprocating motion's blade grinding device has set up the three polished surface that polished surface one, polished surface two and polished surface three are constituteed, and three polished surface wherein has a plane of two different angles, when polishing blade transition and connection area, can be better be applicable to its inclination's the process of polishing.

Description

Blade grinding device with reciprocating motion

Technical Field

The utility model relates to a blade field of polishing specifically is a take reciprocating motion's blade grinding device.

Background

In a conventional manual blade grinding process based on a fixed grinding wheel spindle, in order to grind the surface of a blade uniformly and smoothly at a transition section, a manual reciprocating motion with a certain frequency along the axial direction of the grinding wheel spindle or at a certain angle is often added by an operator. According to the existing domestic and foreign automatic polishing method or equipment, the motion of an execution terminal is single, and in the transition and connection areas of the root part and the surface of the blade, due to the fact that the polishing surfaces are more and the angles are different, the existing plane grinding wheel cannot be suitable for polishing the blade with the angle change of the root part of the blade when the blade is polished, and therefore the blade polishing device with the reciprocating motion is provided.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Not enough to prior art, the utility model provides a take reciprocating motion's blade grinding device has solved foretell problem.

(II) technical scheme

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a take reciprocating motion's blade grinding device, includes a supporting bench, the top fixed mounting of supporting bench has reciprocating motion device, reciprocating motion device's movement track route is reciprocating motion three, reciprocating motion device's top sets up pressure head constant force device, constant force device's movement track is the constant force motion, the top of constant force device is provided with power spindle, power spindle's one end is provided with collet chuck, install the emery wheel connecting rod among the collet chuck, the end of emery wheel connecting rod is provided with the emery wheel, one side of emery wheel is provided with the work piece, and the work piece adopts the manipulator to carry out the centre gripping fixed.

Preferably, the workpiece clamped by the manipulator comprises a blade root, a blade back surface, a blade back upper edge surface, a transition arc between an upper edge surface and the blade back, a blade back lower edge surface at a blade shroud, a blade back transition arc at a blade shroud, a blade basin upper edge surface, a transition arc between an upper edge surface and a blade basin, a blade basin surface, a blade basin transition arc at a blade shroud, and a blade basin lower edge surface at a blade shroud.

Preferably, the grinding wheel on the grinding wheel connecting rod is provided with a first grinding surface, a second grinding surface and a third grinding surface, the inclined direction of the first grinding surface is inclined from one side far away from the grinding wheel to a flared shape close to one side of the grinding wheel, the second grinding surface is a plane, the inclined direction of the third grinding surface is inclined from one side far away from the grinding wheel to a contracted shape close to one side of the grinding wheel, and the three grinding surfaces formed by the first grinding surface, the second grinding surface and the third grinding surface are arranged, so that the grinding wheel connecting rod can be better applicable to grinding of workpieces clamped by the manipulator.

Preferably, the grinding wheel is close to and has seted up the through-hole on the side wall of emery wheel connecting rod, has seted up the top hole on the side wall of keeping away from the emery wheel connecting rod, and top hole and through-hole intercommunication, integrated into one piece have the peg graft pole on the position that the emery wheel connecting rod corresponds the emery wheel, and the peg graft pole is in the same place with through-hole and top hole grafting.

Preferably, one end of the plug-in connection rod extending into the top hole is connected with a nut in a threaded manner, the nut is provided with a dismounting groove, and the shape of the dismounting groove is set according to the shape of the screwdriver head required to be adopted.

Preferably, four lateral wall grooves have been seted up to the equidistance on the inner wall of through-hole, integrated into one piece has four archs, every on the position that the inserted bar corresponds the lateral wall groove protruding respectively with every the lateral wall groove corresponds, protruding and lateral wall groove joint are in the same place, when protruding and the terminal inner wall laminating in lateral wall groove, nut and top hole laminating, through having set up nut and protruding stationarity when this device operation of increase that can be very big, and the current emery wheel mounting means of contrast, need all set up the nut in the both sides of emery wheel and connect, this scheme is through going into the lateral wall inslot with protruding card, then the fixed mode of rethread nut, can let the dismantlement and the assembly of this scheme convenient more simple.

Preferably, the removal of the dressing is varied by varying the frequency of said reciprocating movement, thereby to tailor the geometry of the blade dressing.

(III) advantageous effects

Compared with the prior art, the utility model provides a take reciprocating motion's blade grinding device possesses following beneficial effect:

1. this take reciprocating motion's blade grinding device, through having set up three polished surface that polished surface one, polished surface two and polished surface three are constituteed, three polished surface wherein has a plane of two different angles, when blade transition and linking area polish, the process of polishing that is applicable to its inclination that can be better.

2. This take reciprocating motion's blade grinding device, through having set up nut and protruding stability when this device of increase that can be very big moves, and the current emery wheel mounting means of contrast, need all set up the nut in the both sides of emery wheel and connect, this scheme is through going into the lateral wall inslot with protruding card, then the fixed mode of rethread nut can let the dismantlement and the assembly of this scheme convenient simple more.

Drawings

FIG. 1 is a schematic view of the present invention when polishing a workpiece;

FIG. 2 is a schematic view of a workpiece;

FIG. 3 is a schematic view of a workpiece;

FIG. 4 is a schematic front view of a workpiece;

FIG. 5 is an exploded view of the motion during sanding;

FIG. 6 is a schematic view of a workpiece being polished;

FIG. 7 is a schematic view of a transition surface of a blade back after being ground;

FIG. 8 is a schematic view of a transition surface being sanded;

FIG. 9 is a schematic view of a leaf basin as it is being sanded;

FIG. 10 is a schematic view of the polishing device of the present invention;

fig. 11 is a schematic cross-sectional view of the present invention;

fig. 12 is a schematic top view of the grinding wheel of the present invention.

In the figure: 1. a manipulator; 2. a blade root portion; 3. a leaf back surface; 5. a grinding wheel connecting rod; 6. reciprocating to one; 7. a grinding wheel; 8. performing rotary motion I; 9. reciprocating motion II; 10. grinding a first surface; 11. grinding a second surface; 12. grinding a third surface; 13. a through hole; 14. a plug rod; 15. a sidewall groove; 16. a top aperture; 17. a nut; 18. a protrusion; 101. the upper edge surface of the leaf basin; 102. the transition circular arc of the upper edge surface and the leaf basin; 103. a leaf basin surface; 104. a blade basin transition arc at the blade crown; 105. the lower edge surface of the blade basin at the blade crown; 106. the transition arc of the upper edge surface and the blade back; 107. the upper edge surface of the leaf back; 108. the back of the leaf; 109. the lower edge surface of the blade back at the blade crown; 110. a blade back transition circular arc at the blade crown; 201. a first blade body part; 202. a second blade body part; 203. a transition surface between the blade back transition arc and the blade body; 204. the grinding wheel reciprocates along the grinding wheel shaft; 205. moving the workpiece; 206. performing compound movement; 208. a first coincident surface; 209. a second superposed surface; 208A, a cutting-in section; 208B, an intermediate section; 208C, cutting out sections; 302. a workpiece; 303. a collet chuck; 304. a power spindle; 305. a constant force device; 306. constant force movement; 307. a reciprocating device; 308. performing reciprocating motion III; 309. and a support table.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 to 12, a blade polishing device with a reciprocating motion includes a support table 309, a reciprocating device 307 is fixedly installed at the top end of the support table 309, a motion trajectory route of the reciprocating device 307 is a reciprocating motion three 308, a pressure head constant force device 305 is arranged at the top of the reciprocating device 307, a motion trajectory of the constant force device 305 is a constant force motion 306, a power spindle 304 is arranged at the top end of the constant force device 305, a collet chuck 303 is arranged at one end of the power spindle 304, a grinding wheel connecting rod 5 is installed in the collet chuck 303, a grinding wheel 7 is arranged at the tail end of the grinding wheel connecting rod 5, a workpiece 302 is arranged on one side of the grinding wheel 7, and the workpiece 302 is clamped and fixed by a manipulator 1.

The workpiece 302 comprises a root part 2, a blade back surface 3, a blade back upper edge surface 107, a transition arc 106 between an upper edge surface and a blade back, a blade back surface 108, a blade back lower edge surface 109 at a blade shroud, a blade back transition arc 110 at a blade shroud, a blade basin upper edge surface 101, a transition arc 102 between an upper edge surface and a blade basin, a blade basin surface 103, a blade basin transition arc 104 at a blade shroud, and a blade basin lower edge surface 105 at a blade shroud.

The grinding wheel 7 on the grinding wheel connecting rod 5 is provided with a first grinding surface 10, a second grinding surface 11 and a third grinding surface 12, the inclined direction of the first grinding surface 10 is inclined from one side far away from the grinding wheel 7 to the flaring shape close to one side of the grinding wheel 7, the second grinding surface 11 is a plane, the inclined direction of the third grinding surface 12 is inclined from one side far away from the grinding wheel 7 to the necking shape close to one side of the grinding wheel 7, and through the three grinding surfaces of the first grinding surface 10, the second grinding surface 11 and the third grinding surface 12, the grinding device can be better applicable to grinding of the workpiece 302 clamped by the manipulator 1.

Through-hole 13 has been seted up on the emery wheel 7 one side wall face that is close to emery wheel connecting rod 5, top hole 16 has been seted up on the emery wheel 7 one side wall face of keeping away from emery wheel connecting rod 5, top hole 16 and through-hole 13 intercommunication, and integrated into one piece has peg graft pole 14 on the position that emery wheel connecting rod 5 corresponds emery wheel 7, and peg graft pole 14 is in the same place with through-hole 13 and top hole 16 grafting.

One end of the insertion rod 14 extending into the top hole 16 is connected with a screw cap 17 in a threaded manner, and the screw cap 17 is provided with a dismounting groove, wherein the shape of the dismounting groove is set according to the shape of the screwdriver bit required to be adopted.

Four side wall grooves 15 have been seted up to the equidistance on the inner wall of through-hole 13, integrated into one piece has four archs 18, every on the position that peg graft pole 14 corresponds side wall groove 15 protruding 18 respectively with every side wall groove 15 is corresponding, protruding 18 and 15 joints in the same place in side wall groove, when protruding 18 and the terminal inner wall laminating in side wall groove 15,

nut

17 and 16 laminating in top hole, through set up nut 17 and protruding 18 can be very big increase this device stability when operation, and compare current emery wheel mounting means, need all set up the nut in the both sides of emery wheel and connect, this scheme is through blocking protruding 18 into side wall groove 15, then rethread nut 17 fixed mode, can let the dismantlement and the assembly of this scheme simple and convenient more.

A method for using a reciprocating blade grinding device comprises the following steps:

the first step is as follows: the workpiece 302 is clamped by the manipulator 1 at the root part 2 of the workpiece 302, the grinding wheel 7 in a rotary motion I8 is used for grinding the part, close to the root, of the blade back surface 3, and the grinding wheel 7 does a reciprocating motion I6 with certain frequency and amplitude along with the grinding wheel connecting rod 5, as shown in the figure.

The grinding wheel connecting rod 5 does the reciprocating motion 204 and the workpiece motion 205 of the grinding wheel along the grinding wheel shaft on the workpiece 302 along the grinding wheel rotation axis, the reciprocating motion 204 and the workpiece motion 205 of the grinding wheel along the grinding wheel shaft form a composite motion 206 to finish the grinding motion of covering the transition surface 203 between the blade back transition circular arc and the blade body, under the action of the composite motion 206, the superposition surface I208 of the workpiece is ground once, wherein the part of a superposition surface II 209 contained in the superposition surface I208 is a smooth transition superposition surface between the blade back transition circular arc and the blade body and between the transition surface 203 and the blade body.

The transition surface 203 between the blade back transition arc and the blade body is a transition surface between the blade back upper edge surface 107 and the blade body, and the blade body main part is arranged between the blade body main part one 201 and the blade body main part two 202, and the surface of the blade body main part can be usually polished by a sanding belt.

The reciprocating motion 204 of the grinding wheel along the grinding wheel axis represents the reciprocating motion of the grinding wheel along the grinding wheel axis, and the workpiece motion 205 represents a curvilinear motion of the workpiece held by the robot along the blade section.

The second step is that: in order to simplify and reduce the motion track of the robot for clamping the workpiece and finish the primary grinding of the transition surface, the robot only needs to do a stable curvilinear motion between cutting-in and cutting-out relative to the grinding wheel connecting rod 5 for clamping the workpiece 302, and the grinding of the whole transition surface is realized by the reciprocating motion of the rotary grinding wheel. The robot clamps the workpiece and moves for one time along the workpiece 205, the grinding wheel connecting rod 5 achieves one-time feed completion of a transition surface 203 between the whole blade back transition circular arc and the blade body by the method that the movement amplitude is between the blade back upper edge surface 107 and the blade body main part 201 and gradually decreases from cut-in to cut-out, and therefore one-time polishing of the transition surface is achieved.

The third step: when the transition section is ground, the transition section can be subdivided into a cut-in section 208A, a middle section 208B and a cut-out section 208C, the size from the cut-in section to the cut-out section along the length direction of the blade body is gradually reduced, and in order to reduce the motion track of the robot, the machining of the transition surface can be completed by one-time feed through adjusting the reciprocating motion amplitude in the process of cutting in and cutting out.

The fourth step: the transition section after finishing once polishing is detected, for example, when the polishing amount of the cut-in section 208A is larger than that of the middle section 208B by a certain value, the reciprocating frequency of the cut-in section 208A can be increased during second polishing so that the removal amount in unit time is reduced, and therefore the total polishing amount of the cut-in section and the middle section after second polishing is close, the polishing amount is corrected, and the geometric requirement of the part is finally guaranteed.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A blade grinding device with reciprocating motion comprises a support table (309), and is characterized in that: the top end of the supporting table (309) is fixedly provided with a reciprocating device (307), the movement track route of the reciprocating device (307) is a reciprocating motion III (308), the top of the reciprocating device (307) is provided with a pressure head constant force device (305), the movement track of the constant force device (305) is a constant force motion (306), the top end of the constant force device (305) is provided with a power spindle (304), one end of the power spindle (304) is provided with a spring chuck (303), a grinding wheel connecting rod (5) is installed in the spring chuck (303), the tail end of the grinding wheel connecting rod (5) is provided with a grinding wheel (7), one side of the grinding wheel (7) is provided with a workpiece (302), and the workpiece (302) is clamped and fixed by a manipulator (1).

2. The blade sharpening device with reciprocating motion of claim 1, wherein: the grinding wheel (7) on the grinding wheel connecting rod (5) is provided with a first grinding surface (10), a second grinding surface (11) and a third grinding surface (12), the inclined direction of the first grinding surface (10) inclines from one side far away from the grinding wheel (7) to a flared shape close to one side of the grinding wheel (7), the second grinding surface (11) is a plane, and the inclined direction of the third grinding surface (12) inclines from one side far away from the grinding wheel (7) to a tapered shape close to one side of the grinding wheel (7).

3. The blade sharpening device with reciprocating motion of claim 1, wherein: through-hole (13) have been seted up on emery wheel (7) the side wall face that is close to emery wheel connecting rod (5), top hole (16) have been seted up on emery wheel (7) the side wall face of keeping away from emery wheel connecting rod (5), top hole (16) and through-hole (13) intercommunication, and integrated into one piece has grafting pole (14) on emery wheel connecting rod (5) corresponds the position of emery wheel (7), and grafting pole (14) are pegged graft together with through-hole (13) and top hole (16).

4. A reciprocating blade sharpening device according to claim 3, wherein: and a nut (17) is connected to one end of the plug rod (14) extending to the interior of the top hole (16) in a threaded manner.

5. A reciprocating blade sharpening device according to claim 3, wherein: four side wall grooves (15) are formed in the inner wall of the through hole (13) at equal intervals, four protrusions (18) are integrally formed in the positions, corresponding to the side wall grooves (15), of the plug-in connecting rods (14), each protrusion (18) corresponds to each side wall groove (15) respectively, and the protrusions (18) are connected with the side wall grooves (15) in a clamped mode.