Metal pipe fitting burnishing machine
Technical Field
The invention relates to the technical field related to metal pipe polishing, in particular to a metal pipe polishing machine.
Background
Polishing is a technology for reducing the surface roughness of a workpiece by utilizing the actions of machinery, chemistry, electrochemistry and the like, wherein a product obtained by mechanical polishing has the advantages of good flatness and high brightness, so that the polishing becomes the most common method for workpiece surface treatment. The traditional polishing processing treatment is carried out on the metal pipe fitting, the single side of the metal pipe fitting is generally polished through the operation mode of a human hand, and because the manual operation force is controlled unevenly, the polishing processing treatment is easy to cause the partial color inconsistency of the metal pipe fitting and the polishing of the metal pipe fitting to have chromatic aberration, the chamfering of the metal pipe fitting is easy to cause the phenomenon that the chamfering of the metal pipe fitting frequently collapses, and the operation mode of polishing the metal pipe fitting by the human hand has the defects of high reject ratio of products, low working efficiency, poor polishing precision and poor processing effect, and also causes the labor intensity of workers and the labor cost of enterprises to be high, and does not meet the requirements of large-scale mass production and automatic production of enterprises.
Most of the existing enterprises use polishing machines to polish the surfaces of metal pipes, so that the surfaces of the metal pipes are smooth, the working efficiency of the polishing machines is high, and the machined workpieces are good in surface roughness and stable in performance. The existing polishing machine only can polish metal pipe fittings with one shape when polishing, but cannot clamp and polish the metal pipe fittings with different sizes and specifications, and when the metal pipe fittings are combined parts of straight pipes and arc pipes, the polishing is more difficult.
Disclosure of Invention
The invention provides a metal pipe fitting polishing machine capable of clamping and polishing metal pipe fittings with different sizes, aiming at overcoming the defect that the clamping and polishing of the metal pipe fittings with different sizes cannot be carried out in the prior art.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
The utility model provides a metal pipe fitting burnishing machine, includes the box, be equipped with the box cavity in the box, be fixed with revolving stage and frame on the bottom surface of box cavity, the edge evenly distributed of revolving stage up end has a plurality of rack, rack and revolving stage sliding connection, be fixed with the fixed plate on the rack, evenly distributed has a plurality of installation component on the side of fixed plate, installation component is including rotating the seat, rotate seat and fixed plate rotation and be connected, rotate and be connected with the dwang on the seat, the outside cover of dwang is equipped with the installation cover, the installation cover is fixed on rotating the seat, be fixed with the carousel on the dwang, the cover is equipped with the elastic clamping sleeve on the lateral wall of installation cover, the elastic clamping sleeve is located the side of carousel, be equipped with the drum between installation cover and the elastic clamping sleeve, the drum divide into a plurality of circular arc piece, all be fixed with the bracing piece on the inside wall of every circular arc piece, the bracing piece runs through the installation cover and arranges in the lateral wall of carousel on, bracing piece and installation cover sliding connection, bracing piece and carousel sliding connection, polish and carousel side wall and the corresponding on the side of carousel are arranged in the machine case, the machine case is connected with the side of the machine.
The bottom surface in the box body is fixedly provided with a turntable and a machine seat, a plurality of placing frames are uniformly distributed at the edge of the upper end surface of the turntable, the placing frames are in sliding connection with the turntable, a fixed plate is fixedly arranged on the placing frames, a plurality of installation components are uniformly distributed on the side surface of the fixed plate, each installation component comprises a rotating seat and a fixed plate which are in rotating connection, a rotating rod is rotationally connected on the rotating seat, an installation sleeve is sleeved outside the rotating rod, the installation sleeve is fixedly arranged on the rotating seat, a turntable is fixedly arranged on the rotating rod, an elastic clamping sleeve is sleeved on the outer side wall of the installation sleeve, the elastic clamping sleeve is positioned on the side surface of the turntable, a cylinder is arranged between the installation sleeve and the elastic clamping sleeve and is divided into a plurality of circular arc blocks, supporting rods are fixedly arranged on the inner side wall of each circular arc block and penetrate through the installation sleeve to be arranged on the side wall of the turntable, the support rod is in sliding connection with the mounting sleeve, the support rod is in sliding connection with the turntable, bosses matched with the support rod are arranged on the side wall of the turntable, a polishing machine case is in sliding connection with the machine base, the polishing machine case is arranged on the side face of the placing frame, a feed inlet corresponding to the mounting assembly is arranged on the side face of the polishing machine case, during clamping, a metal pipe fitting to be polished is sleeved on the mounting sleeve, the rotating rod is controlled to rotate through the rotating seat, the turntable on the rotating rod is driven to rotate, when the bosses on the turntable are rotated onto the support rod, the support rods are gradually jacked up by the bosses, further, the arc blocks on the support rods gradually prop up the elastic clamping sleeve, the elastic clamping sleeve is outwards expanded until the metal pipe fitting is clamped, and the purpose of clamping and fixing the metal pipe fitting with different sizes can be well achieved through the design; wherein the elastic clamping sleeve can also stretch the arc block; the metal pipe fitting to be polished enters the polishing machine box through the feed inlet to be polished after being fixed, so that the polishing machine box is simple and quick, dust and flying dust generated by polishing can be prevented from splashing everywhere due to the fact that the polishing process is carried out in the polishing machine box, environmental pollution is reduced, and safety of operators is guaranteed.
Preferably, a control motor matched with a placing frame is fixed on the side surface of the turntable, the placing frame comprises a U-shaped block, the bottom surface of the U-shaped block is arranged on the turntable and is in sliding connection with the turntable through the control motor, a rotator is arranged between two side edges of the U-shaped block, the rotator is in rotating connection with the U-shaped block through the control motor, a fixed plate is fixed on the rotator, and when polishing is performed, the control motor controls the placing frame to slide back and forth on the turntable, so that the polishing effect is improved; the control motor can control the rotation of the rotating body, and can be matched with the polishing machine box to polish the arc-shaped metal pipe fittings.
Preferably, the fixed plate is provided with a rotating groove corresponding to the rotating seat, the rotating seat is rotationally connected with a rotating block, the rotating seat is fixed on one side of the rotating block, a handle is fixed at the edge of the other side of the rotating block, a first cylinder group is fixed on the rotating body, a sliding rod is connected to the first cylinder group in a sliding way, the sliding rod is arranged on the side face of the fixed plate and is parallel to the fixed plate, a sliding rod groove corresponding to the handle is arranged on the sliding rod, the handle is arranged in the sliding rod groove, a connecting rod is arranged on the inner side wall of the sliding rod groove, one end of the connecting rod is rotationally connected with the sliding rod groove, the handle is arranged on the other end of the connecting rod and rotationally connected with the connecting rod, the sliding rod is controlled to slide left and right through the first cylinder group, the handles in the sliding rod grooves drive the rotating blocks to synchronously rotate in the rotating groove under the guiding action of the connecting rod, and the design can well realize simultaneous rotation of each mounting assembly, so that the polishing machine case polishes metal pipes more comprehensively and synchronously.
Preferably, a case cavity is formed in the polishing case, sliding rails are fixed on the side walls of two sides of the case cavity, an upper polishing wheel and a lower polishing wheel are connected between the two sliding rails in a sliding mode, the upper polishing wheel and the lower polishing wheel are arranged in parallel, and the relative positions between the upper polishing wheel and the lower polishing wheel are adjusted through the sliding rails so as to polish metal pipe fittings with different sizes.
Preferably, the two sliding rails are both connected with upper sliding blocks corresponding to the upper polishing wheels in a sliding manner, an upper mounting seat is fixed on the side surface of one upper sliding block, a first nozzle connector is fixed at the bottom of the upper mounting seat, a first spray head is fixed on the first nozzle connector, the first spray head faces one side of the upper polishing wheels, an upper motor is fixed on the side surface of the other upper sliding block, the upper polishing wheels are arranged between the upper mounting seat and the upper motor, an upper cylinder is fixed on the side wall of one side of a cavity of the machine case, the upper sliding blocks are in sliding connection with the sliding rails through the upper cylinder, the upper cylinder adjusts the position of the upper polishing wheels through controlling the movement of the upper sliding blocks, and in addition, the upper motor provides power for the upper polishing wheels to drive the upper polishing wheels to rotate so as to polish metal pipe fittings; the spray head is used for polishing the thin-wall metal pipe fitting, atomized cooling liquid is sprayed on the surface of the thin-wall metal pipe fitting during polishing, so that the atomized cooling liquid prevents too much humidity to weaken the polishing abrasion mark effect, and also prevents too little humidity, the surface of the thin-wall metal pipe fitting is high in temperature, the abrasion surface loses gloss, black spots appear, and even the surface of the thin-wall metal pipe fitting deforms.
Preferably, the two sliding rails are both connected with lower sliding blocks corresponding to the lower polishing wheels in a sliding manner, a lower motor is fixed on the side face of one lower sliding block, a lower mounting seat is fixed on the side face of the other lower sliding block, the positions of the upper mounting seat and the lower mounting seat are staggered, a nozzle connector II is fixed on the top of the lower mounting seat, a spray head II is fixed on the nozzle connector II, the spray head II faces one side of the lower polishing wheels, the lower polishing wheels are arranged between the lower mounting seat and the lower motor, a lower cylinder is fixed on the side wall of one side of a cavity of the machine case, the lower sliding blocks are connected with the sliding rails in a sliding manner through the lower cylinder, the lower cylinder adjusts the position of the lower polishing wheels through controlling the movement of the lower sliding blocks, and in addition, the lower motor provides power for the lower polishing wheels to drive the lower polishing wheels to rotate so as to polish metal pipe fittings; the second spraying head has the same function as the first spraying head, and can spray and cool the thin-wall metal pipe in all directions through the cooperation of the spraying heads on the two sides.
Preferably, a second cylinder group is fixed on the side wall of the cavity of the case, a cleaning wheel is arranged on the second cylinder group and is in sliding connection with the cavity of the case through the second cylinder group, the cleaning wheel is positioned between the upper polishing wheel and the lower polishing wheel and is arranged in parallel with the two polishing wheels, a flexible brush is fixed on the surface of the cleaning wheel, a waste disc is clamped at the bottom of the polishing case, the cleaning wheel is used for cleaning the surfaces of the upper polishing wheel and the lower polishing wheel after polishing is finished, and dust or scraps remained on the polishing wheels are brushed off so as to ensure the surface of the polishing wheels to be smooth and clean for the next use; dust and sweeps generated during polishing and cleaning can fall into the waste tray, and workers can detach the waste tray for cleaning treatment.
Preferably, the feeding hole is positioned between the upper polishing wheel and the lower polishing wheel, the side walls of the upper side and the lower side of the feeding hole are respectively provided with a feeding hole chute, a cover plate is connected in a sliding manner in the feeding hole chute, a first pushing cylinder is fixed on the bottom surface of the feeding hole chute, one side of the cover plate is fixed on the first pushing cylinder and is in sliding connection with the feeding hole chute through the first pushing cylinder, a distance sensor is arranged on the side surface of the other side of the cover plate and is connected with the first pushing cylinder, the distance sensor is used for sensing a metal pipe fitting entering the polishing case, the cover plate covers the feeding hole to the greatest extent under the pushing of the first pushing cylinder without contacting the metal pipe fitting, and in addition, when the arc-shaped metal pipe fitting is processed, the cover plate can be matched and moved correspondingly along with the position change of the arc-shaped metal pipe fitting in the feeding hole.
Preferably, an opening I is arranged on one side surface of the box body, pushing cylinders II are fixed on the side walls of two sides of the opening I, a placement plate is fixed between the two pushing cylinders II and is in sliding connection with the opening I through the pushing cylinders II, the placement plate is positioned below the installation component, the opening II is arranged on the other side surface of the box body, safety doors are rotatably connected to two sides of the opening II, observation windows are arranged on the safety doors, an operator places metal pipe fittings to be processed on the installation component through the opening I, and the additionally arranged placement plate can play a reference positioning role on the placed metal pipe fittings so as to ensure that all the metal pipe fittings on the same placement frame are on the same horizontal plane; operators can enter the box body through the safety door to adjust, check and repair the polishing machine.
The upper polishing wheel and the lower polishing wheel are both white corundum grinding wheels, the contact sensors are arranged in the upper polishing wheel and the lower polishing wheel, the contact sensor of the upper polishing wheel is connected with the upper cylinder, and the contact sensor of the lower polishing wheel is connected with the lower cylinder, wherein the white corundum grinding wheels have the advantages of lower hardness, larger granularity, loose tissue, small grinding force and lower grinding temperature, and are very suitable for processing thin-wall metal pipe fittings; the contact sensor is used for sensing the position between the polishing wheel and the thin-wall metal pipe fitting, sending the position information to the air cylinder, controlling the stroke speed and the cutting amount of the air cylinder, and enabling the polishing wheel to keep smaller cutting amount and higher longitudinal stroke speed to process the thin-wall water inlet pipe fitting.
The beneficial effects of the invention are as follows: the elastic clamping sleeve on the mounting assembly is designed, so that the purpose of clamping and fixing metal pipe fittings with different sizes can be well realized; the polishing process is carried out in the polishing machine box, so that dust and flying dust generated by polishing can be prevented from splashing everywhere, environmental pollution is reduced, and the safety of operators is ensured; the additionally arranged cleaning wheel can brush dust or scraps remained on the polishing wheel so as to ensure the surface of the polishing wheel to be smooth and clean, so that the polishing wheel can be used next time; the spray cooling treatment can be carried out on the thin-wall metal pipe in an omnibearing way through the cooperation of the first spray head and the second spray head, so that the abrasion mark effect of polishing is prevented from being weakened due to too high humidity, the surface temperature of the thin-wall metal pipe is prevented from being high when the humidity is too low, the abrasion surface loses gloss, black spots appear, and even the surface of the thin-wall metal pipe is deformed; the added contact sensor is used for sensing the position between the polishing wheel and the thin-wall metal pipe fitting, so that the polishing wheel keeps smaller cutting tool amount and higher longitudinal travel speed to process the thin-wall water inlet pipe fitting.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a left side view of the present invention;
FIG. 3 is a cross-sectional view at A-A in FIG. 1;
FIG. 4 is a front view of the polishing receptacle of FIG. 1;
FIG. 5 is a left side view of the polishing receptacle of FIG. 1;
FIG. 6 is a cross-sectional view at C-C in FIG. 5;
FIG. 7 is a cross-sectional view at D-D in FIG. 5;
FIG. 8 is a cross-sectional view at B-B in FIG. 4;
FIG. 9 is a front view of the turret portion of FIG. 1;
FIG. 10 is a top view of the turret portion of FIG. 1;
FIG. 11 is a connection diagram of the fixing plate portion of FIG. 10;
FIG. 12 is a schematic view of the mounting assembly of FIG. 11;
Fig. 13 is an enlarged view of F in fig. 12;
FIG. 14 is a cross-sectional view taken at E-E of FIG. 12;
figure 15 is a schematic view of the portion of the polishing wheel of figure 7.
In the figure: 1. the housing, 2, housing cavity, 3, opening one, 4, polishing case, 5, pushing cylinder two, 6, placement cylinder two, 7, turntable, 8, placement bracket, 9, fixed seat, 10, mounting assembly, 11, opening two, 12, safety door, 13, viewing window, 14, seat, 15, control motor, 16, feed inlet, 17, cover, 18, waste pan, 19, feed inlet chute, 20, pushing cylinder one, 21, distance sensor, 22, housing cavity, 23, upper polishing wheel, 24, upper motor, 25, slide rail, 26, lower mounting seat, 27, lower slider, 28, lower cylinder, 29, cleaning wheel, 30, lower polishing wheel, 31, lower motor, 32, upper mounting seat, 33, upper slider, 34, upper cylinder, 35, flexible brush, 36, group two, 37, cylinder group one, 38, 39, rotor, 40, U-shaped block, 41, rotor, 42, rotor block 43, handle, 44, 45, rotor, slide bar, 46, rotor, 47, 48, rotor, 48, support bar, 48, arc-shaped support, 48, support, 53, arc-shaped support, 53, arc, 48, arc-shaped support, 48, arc shaped support, head, 53, arc shaped support, and arc shaped support.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
In the embodiment described in fig. 1 and 3, a metal pipe fitting polishing machine comprises a box body 1, wherein a box body cavity 2 is arranged in the box body 1, a turntable 7 and a machine base 14 are fixed on the bottom surface of the box body cavity 2, a plurality of placing frames 8 are uniformly distributed at the edge of the upper end surface of the turntable 7, the placing frames 8 are in sliding connection with the turntable 7, a fixing plate 9 is fixed on the placing frames 8, and a plurality of mounting assemblies 10 are uniformly distributed on the side surface of the fixing plate 9.
As shown in fig. 1 and 12, the mounting assembly 10 includes a rotating base 46, the rotating base 46 is rotatably connected with the fixing plate 9, a rotating rod 47 is rotatably connected to the rotating base 46, a mounting sleeve 48 is sleeved outside the rotating rod 47, and the mounting sleeve 48 is fixed to the rotating base 46.
As shown in fig. 13 and 14, a turntable 49 is fixed on a rotating rod 47, an elastic clamping sleeve 50 is sleeved on the outer side wall of a mounting sleeve 48, the elastic clamping sleeve 50 is located on the side face of the turntable 49, a cylinder 51 is arranged between the mounting sleeve 48 and the elastic clamping sleeve 50, the cylinder 51 is divided into a plurality of arc blocks 52, a supporting rod 53 is fixed on the inner side wall of each arc block 52, the supporting rod 53 penetrates through the mounting sleeve 48 and is arranged on the side wall of the turntable 49, the supporting rod 53 is in sliding connection with the mounting sleeve 48, the supporting rod 53 is in sliding connection with the turntable 49, and a boss 54 matched with the supporting rod 53 is arranged on the side wall of the turntable 49.
As shown in fig. 1 and 4, the polishing machine case 4 is slidably connected to the base 14, the polishing machine case 4 is disposed on a side surface of the placement frame 8, and a feed port 16 corresponding to the mounting assembly 10 is disposed on the side surface of the polishing machine case 4.
As shown in fig. 9 and 10, a control motor 15 matched with the placing frame 8 is fixed on the side surface of the turntable 7, the placing frame 8 comprises a U-shaped block 40, the bottom surface of the U-shaped block 40 is placed on the turntable 7 and is in sliding connection with the turntable 7 through the control motor 15, a rotating body 39 is installed between two side edges of the U-shaped block 40, the rotating body 39 is in rotating connection with the U-shaped block 40 through the control motor 15, and the fixing plate 9 is fixed on the rotating body 39.
As shown in fig. 11, the fixed plate 9 is provided with a rotating groove 41 corresponding to the rotating seat 46, the rotating seat 41 is rotationally connected with a rotating block 42, the rotating seat 46 is fixed on one side of the rotating block 42, a handle 43 is fixed on the edge of the other side of the rotating block 42, a first cylinder group 37 is fixed on the rotating body 39, a sliding rod 38 is slidingly connected on the first cylinder group 37, the sliding rod 38 is arranged on the side surface of the fixed plate 9 and is parallel to the fixed plate 9, the sliding rod 38 is provided with a sliding rod groove 45 corresponding to the handle 43, the handle 43 is arranged in the sliding rod groove 45, a connecting rod 44 is arranged on the inner side wall of the sliding rod groove 45, one end of the connecting rod 44 is rotationally connected with the sliding rod groove 45, and the handle 43 is arranged on the other end of the connecting rod 44 and is rotationally connected with the connecting rod 44.
As shown in fig. 5 and 7, a casing cavity 22 is provided in the polishing casing 4, sliding rails 25 are fixed on side walls on both sides of the casing cavity 22, an upper polishing wheel 23 and a lower polishing wheel 30 are slidably connected between the two sliding rails 25, and the upper polishing wheel 23 and the lower polishing wheel 30 are arranged in parallel.
As shown in fig. 7, the two slide rails 25 are both slidably connected with an upper slider 33 corresponding to the upper polishing wheel 23, an upper mounting seat 32 is fixed on a side surface of one upper slider 33, as shown in fig. 15, a first nozzle connector 55 is fixed at the bottom of the upper mounting seat 32, a first spray head 56 is fixed on the first nozzle connector 55, the first spray head 56 faces one side of the upper polishing wheel 23, an upper motor 24 is fixed on a side surface of the other upper slider 33, the upper polishing wheel 23 is installed between the upper mounting seat 32 and the upper motor 24, an upper cylinder 34 is fixed on a side wall of one side of the chassis cavity 22, and the upper slider 33 is slidably connected with the slide rail 25 through the upper cylinder 34.
As shown in fig. 7, the two slide rails 25 are both slidably connected with a lower slider 27 corresponding to the lower polishing wheel 30, a lower motor 31 is fixed on the side surface of one lower slider 27, a lower mounting seat 26 is fixed on the side surface of the other lower slider 27, as shown in fig. 15, the positions of the upper mounting seat 32 and the lower mounting seat 26 are staggered, a second nozzle connector 57 is fixed on the top of the lower mounting seat 26, a second spray head 58 is fixed on the second nozzle connector 57, the second spray head 58 faces to the side of the lower polishing wheel 30, the lower polishing wheel 30 is installed between the lower mounting seat 26 and the lower motor 31, a lower cylinder 28 is fixed on the side wall of the side of the chassis cavity 22, and the lower slider 27 is slidably connected with the slide rail 25 through the lower cylinder 28.
As shown in fig. 4 and 8, a second cylinder group 36 is fixed on the side wall of the chassis cavity 22, a cleaning wheel 29 is mounted on the second cylinder group 36, the cleaning wheel 29 is slidably connected with the chassis cavity 22 through the second cylinder group 36, the cleaning wheel 29 is located between the upper polishing wheel 23 and the lower polishing wheel 30 and is parallel to the two polishing wheels, a flexible brush 35 is fixed on the surface of the cleaning wheel 29, and a waste tray 18 is clamped at the bottom of the polishing chassis 4.
As shown in fig. 6 and 8, the feed port 16 is located between the upper polishing wheel 23 and the lower polishing wheel 30, the side walls on the upper side and the lower side of the feed port 16 are respectively provided with a feed port chute 19, a cover plate 17 is slidably connected to the feed port chute 19, a first pushing cylinder 20 is fixed to the bottom surface of the feed port chute 19, one side of the cover plate 17 is fixed to the first pushing cylinder 20 and is slidably connected to the feed port chute 19 through the first pushing cylinder 20, a distance sensor 21 is mounted on the side surface on the other side of the cover plate 17, and the distance sensor 21 is connected to the first pushing cylinder 20.
As shown in fig. 1 and 2, an opening one 3 is arranged on one side surface of the box body 1, pushing air cylinders two 5 are fixed on the side walls on two sides of the opening one 3, a placing plate 6 is fixed between the two pushing air cylinders two 5, the placing plate 6 is slidably connected with the opening one 3 through the pushing air cylinders two 5, the placing plate 6 is positioned below the mounting assembly 10, an opening two 11 is arranged on the other side surface of the box body 1, safety doors 12 are rotatably connected on two sides of the opening two 11, and observation windows 13 are arranged on the safety doors 12.
As shown in fig. 15, the upper polishing wheel 23 and the lower polishing wheel 30 are white corundum grinding wheels, the contact sensor 59 is installed inside the upper polishing wheel 23 and the lower polishing wheel 30, the contact sensor 59 of the upper polishing wheel 23 is connected with the upper cylinder 34, and the contact sensor 59 of the lower polishing wheel 30 is connected with the lower cylinder 28.
And (3) clamping: the staff first sleeve the metal pipe fitting to be polished on the mounting sleeve 48, then starts the clamping button, and the rotating seat 46 automatically controls the rotating rod 47 to rotate, so as to drive the turntable 49 thereon to rotate. When the boss 54 on the turntable 49 is rotated onto the corresponding supporting rod 53, under the action of the boss 54, each supporting rod 53 is gradually jacked up, so that each circular arc block 52 gradually expands the elastic clamping sleeve 50, and then the elastic clamping sleeve 50 expands outwards until the metal pipe fitting to be polished is clamped.
Before polishing the metal pipe, the worker first places the metal pipe on the mounting sleeve 48 for fixing; after the elastic clamping sleeve 50 automatically clamps the metal pipe fitting, the turntable 7 automatically rotates to rotate the metal pipe fitting to the side surface of the feed port 16 of the polishing machine case 4; the machine base 14 controls the polishing machine case 4 to move towards the metal pipe fitting, and the metal pipe fitting enters the inside of the polishing machine case 4 through the feeding hole 16; after that, the cover 17 covers the feed port 16, and polishing is started.
Polishing:
1. polishing the straight tube part: the first cylinder group 37 controls the slide bar 38 to slide left and right, and the handles 43 in the slide bar grooves 45 drive the rotating blocks 42 to synchronously rotate in the rotating grooves 41 under the guiding action of the connecting rods 44, so that the mounting assemblies 10 simultaneously rotate; meanwhile, the motor 15 is controlled to drive the placing frame 8 to swing left and right; simultaneously, an upper motor 24 and a lower motor 31 in the polishing machine case 4 work simultaneously, and the upper polishing wheel 23 and the lower polishing wheel 30 are controlled to start respectively; simultaneously, the upper air cylinder 34 and the lower air cylinder 28 work, two polishing wheels are controlled to approach to the metal pipe fitting from the upper end and the lower end, and polishing operation is carried out on the linear part of the metal pipe fitting; and simultaneously, the machine base 14 controls the polishing machine case 4 to move back and forth so that the two polishing wheels polish the whole straight line part of the metal pipe fitting back and forth.
2. Polishing the arc-shaped pipe part: the first cylinder group 37 controls the slide bar 38 to slide left and right, and the handles 43 in the slide bar grooves 45 drive the rotating blocks 42 to synchronously rotate in the rotating grooves 41 under the guiding action of the connecting rods 44, so that the mounting assemblies 10 simultaneously rotate; meanwhile, the control motor 15 controls the rotator 39 to rotate in a matched manner; at the same time, the upper cylinder 34 controls the upper slider 33 to move, the position of the upper polishing wheel 23 is adjusted, the lower cylinder 28 controls the lower slider 27 to move, and the position of the lower polishing wheel 30 is adjusted; meanwhile, the machine base 14 controls the polishing machine case 4 to move back and forth to adjust the position of the machine base, so that polishing of the arc-shaped part of the metal pipe fitting is performed (the cover plate 17 automatically adjusts the position under the action of the distance sensor 21 and moves up and down in cooperation with the metal pipe fitting).
After finishing polishing, the machine base 14 drives the polishing machine case 4 to reset, the cleaning wheel 29 is started to clean the upper polishing wheel 23 and the lower polishing wheel 30, after finishing cleaning, the machine base is reset, and the turntable 7 transfers the polished metal pipe fitting to the blanking opening for blanking.
Specifically, when polishing the thin-wall metal pipe fitting, the first nozzle connector 55 and the second nozzle connector 57 on two sides of the polishing wheel are connected with an external cooling liquid system, the external cooling liquid system supplies cooling liquid to the first nozzle connector 55 and the second nozzle connector 57, and the thin-wall metal pipe fitting is subjected to omnibearing spray cooling treatment through the first spray head 56 and the second spray head 58; meanwhile, the contact sensor 59 senses the positions between the upper polishing wheel 23 and the lower polishing wheel 30 and the thin-wall metal pipe in real time, sends position information to the air cylinder, controls the stroke speed and the cutting amount of the air cylinder, and enables the polishing wheels to keep small cutting amount and high longitudinal stroke speed to process the thin-wall water inlet pipe.