CN111002149A

CN111002149A - Aluminum alloy casting polishing workbench

Info

Publication number: CN111002149A
Application number: CN202010050380.5A
Authority: CN
Inventors: 陈宇强; 刘守健; 伏明珠; 阳明广; 刘文辉; 潘素平
Original assignee: Hunan University of Science and Technology
Current assignee: Hunan University of Science and Technology
Priority date: 2020-01-17
Filing date: 2020-01-17
Publication date: 2020-04-14

Abstract

The invention relates to the field of machining equipment, in particular to an aluminum alloy casting polishing workbench which comprises a base, wherein a first vertical frame is fixed on the base, a polishing box is fixed on the first vertical frame, a clamping mechanism used for clamping a workpiece is arranged in the polishing box, a second vertical frame is fixed on the first vertical frame, a jet polishing mechanism is arranged on the second vertical frame, a driving part is arranged in the base, and the driving part is respectively in driving connection with the clamping mechanism and the jet polishing mechanism. This kind of aluminum alloy casting polishing workbench carries out the centre gripping through fixture to the aluminum alloy work piece of treating polishing fixed to rotate through drive division drive fixture, the aluminum alloy work piece that jet milling mechanism treats polishing is polished, whole in-process makes the aluminium powder under the grinding wrap up in the lapping liquid, can not dissipate, and the lapping liquid can not produce high temperature when grinding in addition, greatly reduced intensity of labour, the human body can not inhale the aluminium powder, and the operational safety is high.

Description

Aluminum alloy casting polishing workbench

Technical Field

The invention relates to the field of machining equipment, in particular to an aluminum alloy casting polishing workbench.

Background

After the aluminum alloy casting is cast, because the surface of the aluminum alloy casting is affected by a machining process, bulges, die edges and the like often exist on the surface of the aluminum alloy casting, and particularly for workpieces with high precision requirements, the surface of the aluminum alloy casting needs to be polished.

Mechanical polishing can be adopted for aluminum alloy castings with simple regular shapes, manual polishing is usually adopted for polishing the surfaces of aluminum alloy castings with complex structures or special shapes, the labor intensity is high, polished aluminum powder is sucked by human bodies and damages the health of human bodies, the aluminum powder is easy to dissipate in the ambient air during polishing, and due to the fact that the ignition point of the aluminum powder is low and the chemical activity of the aluminum powder is active, explosion is easy to occur and dangerous after the concentration of the aluminum powder in the air reaches a certain degree, and therefore the aluminum alloy casting polishing workbench is provided.

Disclosure of Invention

The invention aims to provide an aluminum alloy casting polishing workbench to solve the problems in the background technology. In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an aluminum alloy casting polishing workbench, includes the base, is fixed with grudging post one on the base, and is fixed with the case of polishing on the grudging post one, and the incasement portion of polishing is provided with the fixture that is used for the work piece centre gripping, is fixed with grudging post two on the grudging post one, is provided with on the grudging post two to spray and grinds the mechanism, and the base is inside to be provided with the drive division, and the drive division is connected with fixture and spray grinding mechanism drive respectively.

Preferably, the movable part comprises a motor fixed inside the base, a water pump is further fixed inside the base and communicated with the inside of the polishing box through a liquid inlet pipe, the side wall of the bottom of the polishing box is connected with a liquid conveying pipe, the liquid conveying pipe is connected with a liquid discharging pipe, and the liquid discharging pipe is connected with an electromagnetic valve.

Preferably, the jet milling mechanism comprises a spiral blade shaft which is rotatably connected with the inside of the milling box through a fixed shaft, the lower end of the spiral blade shaft is fixedly connected with an output shaft of the motor, and the upper end of the spiral blade shaft is fixedly connected with the clamping mechanism.

Preferably, the jet grinding mechanism further comprises a second vertical frame fixed on the first vertical frame, a vertically downward cylinder is fixed in the middle of the second vertical frame, a hanging bracket is fixed at the piston rod end of the cylinder, a cover plate is fixed at the lower end of the hanging bracket, and the side edge of the lower end of the cover plate can be sealed and closed with the upper port of the grinding box.

Preferably, the cantilever is fixed on the stand II, the end part of the cantilever is fixed with the emergency stop switch, the emergency stop switch is positioned above the cover plate, the upper surface of the cover plate is fixed with the spring I, the upper end of the spring I can be in abutting-buckling contact with the emergency stop switch, and the emergency stop switch is electrically connected with the motor in series.

Preferably, the middle part of the cover plate is in threaded connection with a first screw rod, the lower end of the first screw rod is fixedly axially and rotatably connected with a hanging plate, the lower surface of the hanging plate is fixedly connected with a plurality of nozzles, the spraying directions of the nozzles are converged to one point, the point is located on the vertical central axis of the spiral blade shaft, a pipe column corresponding to the nozzles is fixed on the upper surface of the hanging plate, the pipe column is slidably connected onto the cover plate, and the pipe column is communicated with the infusion tube.

Preferably, the clamping mechanism comprises a U-shaped frame, the middle of the U-shaped frame is fixedly connected to the upper end of the spiral blade shaft, the opening of the U-shaped frame is upward, and the symmetrical center line of the U-shaped frame is overlapped with the vertical central axis of the spiral blade shaft.

Preferably, the two ends of the U-shaped frame are both fixedly and rotatably connected with rotating shafts, one end of one rotating shaft, which points to the outer side of the U-shaped frame, is fixed with a gear, the inner wall of the grinding box is fixed with a gear ring, and the gear is meshed with the gear ring.

Preferably, the inner end of the U-shaped frame is coaxially and fixedly connected with a second rotating shaft, two planes are symmetrically arranged on the side walls of the second rotating shaft along the axis direction, a plurality of catching grooves are formed in the planes, a sliding sleeve is sleeved on the second rotating shaft, a through hole matched with the section of the second rotating shaft is formed in the sliding sleeve, a nut is connected to the second rotating shaft in a threaded manner, and a clamping plate is fixed at the opposite end of the second rotating shaft.

Preferably, a pin rod is inserted into the side wall of the threaded sleeve and can slide on the threaded sleeve, the pin rod can be inserted into the buckle groove, and one end of the pin rod, which is positioned outside the threaded sleeve, is connected with the threaded sleeve through a second spring.

Compared with the prior art, the invention has the beneficial effects that:

according to the aluminum alloy polishing device, the aluminum alloy workpiece to be polished is clamped and fixed through the clamping mechanism, the clamping mechanism is driven to rotate through the driving part, the aluminum alloy workpiece to be polished is polished through the jet grinding mechanism, the ground aluminum powder is wrapped in the grinding fluid in the whole process and cannot be dissipated, the grinding fluid cannot generate high temperature during grinding, the labor intensity is greatly reduced, a human body cannot suck the aluminum powder, and the operation safety is high.

Drawings

FIG. 1 is a first schematic view of the cross-sectional structure of the final assembly of the present invention;

FIG. 2 is a schematic view of the cross-sectional structure of the final assembly of the present invention;

FIG. 3 is a schematic view of a clamping mechanism according to the present invention;

fig. 4 is a schematic view of the cross-sectional structure a-a in fig. 3.

In the figure: 1-a base; 2, a motor; 3-a water pump; 4-a liquid discharge pipe; 5-an electromagnetic valve; 6, a first bracket; 7-helical blade shaft; 8-grinding box; 9-a transfusion tube; 10-U-shaped frame; 11-a gear ring; 12-a cover plate; 13-a liquid inlet pipe; 14-a gear; 15-a nozzle; 16-a hanger plate; 17-a column; 18-a second vertical frame; 19-a cylinder; 20-a hanger; 21-a cantilever; 22-spring one; 23-a scram switch; 24-screw rod one; 25-a rotating shaft; 26-screw II; 27-a sliding sleeve; 28-clamping plate; 29-pin bar; 30-a nut; 31-a catching groove; 32-spring two.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by workers skilled in the art without any inventive work based on the embodiments of the present invention, are within the scope of the present invention.

Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides an aluminum alloy casting polishing workbench, includes base 1, is fixed with grudging post 6 on the base 1, and is fixed with the case of polishing 8 on the grudging post 6, and the case of polishing 8 inside is provided with the fixture that is used for the work piece centre gripping, is fixed with grudging post two 18 on the grudging post 6, is provided with on grudging post two 18 and sprays grinding mechanism, and base 1 inside is provided with the drive division, and the drive division is connected with fixture and spray grinding mechanism drive respectively.

In this embodiment, move the portion including fixing at the inside motor 2 of base 1, base 1 is inside still to be fixed with water pump 3, water pump 3 through feed liquor pipe 3 with polish 8 inside intercommunications of case, polish 8 bottom lateral walls of case and connect transfer line 9, and be connected with fluid-discharge tube 4 on the transfer line 9, be connected with solenoid valve 5 on the fluid-discharge tube 4.

In this embodiment, the jet milling mechanism includes that the dead axle rotates to be connected at the inside spiral leaf axle 7 of case 8 that polishes, and the lower extreme of spiral leaf axle 7 and the output shaft fixed connection of motor 2, the upper end and the fixture fixed connection of spiral leaf axle 7.

In this embodiment, the jet milling mechanism further comprises a second vertical frame 18 fixed on the first vertical frame 6, a vertical downward cylinder 19 is fixed in the middle of the second vertical frame 18, a hanging bracket 20 is fixed at a piston rod end of the cylinder 19, a cover plate 12 is fixed at the lower end of the hanging bracket 20, the side edge of the lower end of the cover plate 12 can be sealed and closed with the upper port of the milling box 8, the cover plate 12 and the milling box 8 are made of transparent materials, and therefore the amount of the grinding fluid in the milling barrel 8 and the milling condition of the aluminum alloy workpiece can be observed conveniently.

In this embodiment, the cantilever 21 is fixed on the stand two 18, the end of the cantilever 21 is fixed with the emergency stop switch 23, the emergency stop switch 23 is located above the cover plate 12, the upper surface of the cover plate 12 is fixed with the spring one 22, the upper end of the spring one 22 can be in abutting contact with the emergency stop switch 23, and the emergency stop switch 23 is electrically connected in series with the motor 2.

In this embodiment, a first screw 24 is connected to the middle of the cover plate 12 through a thread, a hanging plate 16 is rotatably connected to the lower end of the first screw 24 in a fixed-axis manner, a plurality of nozzles 15 are fixedly connected to the lower surface of the hanging plate 16, the spraying directions of the nozzles 15 converge at a point, the point is located on the vertical central axis of the spiral vane shaft 7, a tubular column 17 corresponding to the nozzles 15 is fixed to the upper surface of the hanging plate 16, the tubular column 17 is slidably connected to the cover plate 12, the tubular column 17 is communicated with the infusion tube 9, and the peripheries of the first screws 24 of the nozzles 15 are distributed at equal intervals.

In this embodiment, the clamping mechanism includes a U-shaped frame 10, the middle portion of the U-shaped frame 10 is fixedly connected to the upper end of the spiral blade shaft 7, the opening of the U-shaped frame 10 faces upward, the symmetric center line of the U-shaped frame 10 coincides with the vertical central axis of the spiral blade shaft 7, as shown in fig. 1, after the cover plate 12 and the grinding box 8 are fastened, when the hanging plate 16 is at the highest position, the spray aggregation point of the spray nozzles 15 is located in the middle portions of the two clamping plates 28.

In this embodiment, two ends of the U-shaped frame 10 are both connected with rotating shafts 25 in a fixed-axis rotating manner, one end of one rotating shaft 25, which points to the outer side of the U-shaped frame 10, is fixed with a gear 14, the inner wall of the grinding box 8 is fixed with a gear ring 11, and the gear 14 is meshed with the gear ring 11.

In this embodiment, the second rotating shaft 25 is coaxially and fixedly connected with the second screw 26 at the inner side of the U-shaped frame 10, two planes are symmetrically arranged on the side walls of the second screw 26 along the axial direction, a plurality of grooves 31 are formed in the planes, the second screw 26 is sleeved with the sliding sleeve 27, a through hole matched with the section of the second screw 26 is formed in the sliding sleeve 27, the second screw 26 is connected with the nut 30 through threads, and the two opposite ends of the screw sleeve 27 are fixed with the clamping plate 28.

In this embodiment, a pin 29 is inserted into a side wall of the screw sleeve 27, the pin 29 can slide on the screw sleeve 27, the pin 29 can be inserted into the groove 31, and one end of the pin 29 located outside the screw sleeve 27 is connected with the screw sleeve 27 through a second spring 32.

The use method and the advantages of the invention are as follows: when the aluminum alloy casting polishing workbench is used, the aluminum alloy casting polishing workbench comprises the following steps:

the method comprises the following steps: in an initial state, as shown in fig. 1, at this time, the cover plate 12 and the polishing cylinder 8 are not buckled, as shown in fig. 3 and 4, an aluminum alloy workpiece to be polished is placed between the two clamping plates 28, the pin 29 is pulled out from the buckling groove 31, so that the sliding sleeve 27 can move on the second screw rod 26, the two clamping plates 28 are attached to the aluminum alloy workpiece to be polished, the corresponding nuts 30 are rotated, the sliding sleeve 27 drives the two clamping plates 28 to clamp the aluminum alloy workpiece to be polished under the action of screw transmission, then the locking rod 29 is loosened, the locking rod 29 is inserted into the corresponding buckling groove 31 under the action of the second spring 32, the aluminum alloy workpiece to be polished is clamped, and the operation is simple and convenient;

step two: as shown in fig. 2, the cylinder 19 is started, so that the cylinder 19 drives the hanger 20 and the cover plate 12 to synchronously move downwards by extending a piston rod of the cylinder 19, the cover plate 12 is buckled with the polishing box 8, a buckling part of the cover plate 12 and the polishing box 8 can adopt a stepped structure, the sealing effect is increased, when the cover plate 12 is buckled with the polishing box 8, the cylinder 19 is stopped and the cylinder 19 is kept still, at the moment, the first spring 22 has no pressure on the emergency stop switch 23, the emergency stop switch 23 adopts a normally closed contact switch, then the water pump 3 is started to inject a proper amount of grinding fluid into the polishing box 8 through the liquid inlet pipe 13, at the moment, the electromagnetic valve 5 is in a closed state, and the grinding fluid adopts;

step three: after the injection of the grinding fluid is finished, the motor 2 is started, the motor 2 drives the spiral blade shaft 7 to rotate after working, the grinding fluid in the grinding cylinder 8 is conveyed to the insides of the tubular columns 17 through the spiral blades by the rotation of the spiral blade shaft 7 through the liquid conveying pipes 9 and is sprayed to the aluminum alloy workpiece to be ground through the nozzles 15, the surface of the aluminum alloy workpiece is polished through grinding particles in the grinding fluid, the surface polishing and the grinding of the aluminum alloy workpiece are realized, the U-shaped frame 10 is synchronously driven to rotate around the vertical central axis of the spiral blade shaft 7 while the spiral blade shaft 7 rotates, the aluminum alloy workpiece is driven to rotate around the vertical central axis of the spiral blade shaft 7 through the rotating shaft 25, the screw rod II 26 and the sliding sleeve 27, the synchronous belt gear 14 rotates around the vertical central axis of the spiral blade shaft 7 in the rotation process of the U-shaped frame 10, and under the tooth transmission action between the gear 14 and the gear ring, the gear 14 drives the rotating shaft 25 to rotate, and then the aluminum alloy workpiece is driven to synchronously rotate along with the rotating shaft 25 through the second screw rod 26 and the sliding sleeve 27, so that the aluminum alloy workpiece rotates on a horizontal axis and a vertical axis simultaneously, grinding fluid sprayed by the nozzle 15 can uniformly and effectively grind the surface of the aluminum alloy workpiece, aluminum powder which is ground is wrapped in the grinding fluid in the whole process and cannot dissipate, the grinding fluid cannot generate high temperature during grinding, and the aluminum alloy workpiece is safely and reliably ground under the sealing action of the cover plate 12 and the grinding box 8 and is suitable for grinding the surfaces of the aluminum alloy workpieces with different shapes;

for aluminum alloy workpieces with different specifications, the first screw 24 is rotated to enable the hanging plate 16 to move upwards or downwards to be far away from or close to the clamping mechanism, so that the spraying line of the nozzle 15 is located at a proper position on the surface of the aluminum alloy workpiece, and the aluminum alloy workpiece is comprehensively polished;

after polishing is finished, the motor 2 stops working, so that the spiral blade shaft 7 does not rotate, the clamping mechanism does not rotate, the jet polishing mechanism does not work, the abrasive liquid is prevented from being sprayed or thrown out, the air cylinder 19 is started to work, the hanger 20 and the cover plate 12 are driven by the piston rod of the air cylinder to move upwards, the polishing box 8 is opened, the nut 30 is rotated reversely, the pin rod 29 is pulled out of the buckling groove 31, the sliding sleeve 27 can move on the second screw rod 26, the polished aluminum alloy workpiece can be conveniently taken down, and the operation is simple and convenient;

in the process of moving the cover plate 12 upwards, the emergency stop switch 23 is abutted and buckled through the spring 22, so that the emergency stop switch 23 is in a disconnected state, and the phenomenon that the motor 2 is switched on by misoperation when a polished aluminum alloy workpiece is taken down to cause danger is avoided, or in the polishing process, the cover plate 12 is switched on by misoperation of the air cylinder 19, so that the emergency stop switch 23 is disconnected, the motor 2 stops working, and the danger is avoided;

after polishing, the electromagnetic valve 5 is opened, so that the grinding fluid in the polishing box 8 is discharged through the fluid discharge pipe 4 for centralized treatment.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an aluminum alloy casting workstation of polishing, includes base (1), its characterized in that: the grinding machine is characterized in that a first vertical frame (6) is fixed on the base (1), a grinding box (8) is fixed on the first vertical frame (6), a clamping mechanism used for clamping a workpiece is arranged in the grinding box (8), a second vertical frame (18) is fixed on the first vertical frame (6), a jet grinding mechanism is arranged on the second vertical frame (18), a driving part is arranged in the base (1), and the driving part is in driving connection with the clamping mechanism and the jet grinding mechanism respectively.

2. An aluminum alloy casting grinding table as defined in claim 1, wherein: move the portion including fixing motor (2) in base (1) inside, base (1) inside still is fixed with water pump (3), water pump (3) are through feed liquor pipe (3) and the inside intercommunication of case (8) of polishing, the bottom lateral wall of case (8) of polishing is connected transfer line (9), and is connected with fluid-discharge tube (4) on transfer line (9), be connected with solenoid valve (5) on fluid-discharge tube (4).

3. An aluminum alloy casting grinding table as set forth in claim 2, wherein: the jet grinding mechanism comprises a fixed shaft, a spiral blade shaft (7) which is rotatably connected inside a grinding box (8), the lower end of the spiral blade shaft (7) is fixedly connected with an output shaft of a motor (2), and the upper end of the spiral blade shaft (7) is fixedly connected with a clamping mechanism.

4. An aluminum alloy casting grinding table as defined in claim 3, wherein: the jet grinding mechanism further comprises a second vertical frame (18) fixed on the first vertical frame (6), a vertically downward air cylinder (19) is fixed in the middle of the second vertical frame (18), a hanging bracket (20) is fixed to a piston rod end of the air cylinder (19), a cover plate (12) is fixed to the lower end of the hanging bracket (20), and the side edge of the lower end of the cover plate (12) can be in sealing joint with the upper port of the grinding box (8).

5. An aluminum alloy casting grinding table as defined in claim 4, wherein: a cantilever (21) is fixed on the second vertical frame (18), an emergency stop switch (23) is fixed at the end of the cantilever (21), the emergency stop switch (23) is located above the cover plate (12), a first spring (22) is fixed on the upper surface of the cover plate (12), the upper end of the first spring (22) can be in abutting-buckling contact with the emergency stop switch (23), and the emergency stop switch (23) is electrically connected with the motor (2) in series.

6. An aluminum alloy casting grinding table as defined in claim 4, wherein: the middle part threaded connection of apron (12) has screw rod (24), the lower extreme dead axle of screw rod (24) rotates and is connected with hanger plate (16), a plurality of nozzles (15) of lower fixed surface of hanger plate (16), and the injection direction of nozzle (15) assembles a bit, and this bit is located the vertical center axis of spiral leaf axle (7), the last fixed surface of hanger plate (16) has tubular column (17) that correspond with nozzle (15), the sliding connection of tubular column (17) is on apron (12), tubular column (17) all communicates with transfer line (9).

7. An aluminum alloy casting grinding table as defined in claim 6, wherein: the clamping mechanism comprises a U-shaped frame (10), the middle of the U-shaped frame (10) is fixedly connected to the upper end of the spiral blade shaft (7), the opening of the U-shaped frame (10) faces upwards, and the symmetrical center line of the U-shaped frame (10) is overlapped with the vertical central axis of the spiral blade shaft (7).

8. An aluminum alloy casting grinding table as defined in claim 7, wherein: the grinding machine is characterized in that rotating shafts (25) are rotatably connected to two ends of the U-shaped frame (10) in a dead axle mode, a gear (14) is fixed to one end, pointing to the outer side of the U-shaped frame (10), of one rotating shaft (25), a gear ring (11) is fixed to the inner wall of the grinding box (8), and the gear (14) is connected with the gear ring (11) in a meshed mode.

9. An aluminum alloy casting grinding table as defined in claim 8, wherein: the coaxial fixed connection screw rod two (26) of one end of directional U-shaped frame (10) inboard of pivot (25), two planes have been seted up for the symmetry formula along the axis direction on the screw rod two (26) lateral wall, just a plurality of catching grooves (31) have been seted up on the plane, sliding sleeve (27) have been cup jointed on screw rod two (26), set up the through-hole with two (26) cross-section looks adaptations of screw rod in sliding sleeve (27), threaded connection has nut (30), two on screw rod two (26) the tip that swivel nut (27) is relative all is fixed with splint (28).

10. An aluminum alloy casting grinding table as defined in claim 9, wherein: a pin rod (29) is inserted into the side wall of the threaded sleeve (27) in a plugging mode, the pin rod (29) can slide on the threaded sleeve (27), the pin rod (29) can be inserted into the buckling groove (31), and one end, located outside the threaded sleeve (27), of the pin rod (29) is connected with the threaded sleeve (27) through a second spring (32).