CN115747781A

CN115747781A - Aluminum product surface passivation treatment system

Info

Publication number: CN115747781A
Application number: CN202211329850.7A
Authority: CN
Inventors: 李梦洋; 杨胜
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-10-27
Filing date: 2022-10-27
Publication date: 2023-03-07

Abstract

The invention relates to the technical field of aluminum product passivation devices, in particular to an aluminum product surface passivation treatment system which comprises a base, a conveyor belt, a feeding assembly, a processing assembly and a clamping assembly, wherein the feeding assembly comprises a supporting rod, rotating rods, a transmission bevel gear and a power bevel gear, the lower end of the supporting rod rotates on the base, the transmission bevel gear is arranged at the lower part of the supporting rod, four rotating rods which are horizontally distributed in a cross shape are fixedly arranged at the upper end of the supporting rod, two adjacent rotating rods are vertical to each other, the processing assembly comprises a supporting frame, a rotating shaft, a cross and a liquid storage tank, the cross is fixedly connected with the rotating shaft, one end of the rotating shaft is connected with a motor, the other end of the rotating shaft is connected with the power bevel gear, and the power bevel gear is meshed with the transmission bevel gear; the invention drives the rotating shaft through a motor so as to drive the feeding assembly and the processing assembly to rotate, thereby achieving the purpose of passivating the aluminum product.

Description

Aluminum product surface passivation treatment system

Technical Field

The invention relates to the technical field of aluminum product passivation, in particular to an aluminum product surface passivation treatment system.

Background

The surface passivation device for the aluminum product is a device which can remove impurities on the surface of the aluminum product and then construct a new anti-oxidation high-strength protective film on the surface of the aluminum product; the method of constructing a layer of corrosion-resistant protective film on the surface of metal by chemical means is called passivation of metal, and the passivation in the fields of machinery, electronics, instruments, daily necessities and the like can obviously prolong the service life.

The existing aluminum product surface passivation device usually adopts a mode of clamping and driving an aluminum strip by a large-scale clamp to immerse a workpiece into acidic passivation solution, and then passivation is finished by an immersion method; and aiming at oil stains and stains possibly existing on the workpiece, the oil stains and the stains on the surface of the workpiece are usually cleaned by alkaline cleaning solution before the workpiece is passivated; in order to avoid mutual pollution of the residual solution on the surface of the workpiece, a clear water tank is added between the alkaline cleaning tank and the acidic passivation tank, and the residual solution on the surface of the workpiece is cleaned by clear water; in addition, the passivation solution is immersed into clean water for one time to clean residual passivation solution which is not reacted yet after the passivation is finished.

Although the technical scheme realizes the function of passivating the aluminum product, the following defects exist in the actual use process:

1. the conventional aluminum product passivation device mainly aims at the passivation processing of long and straight aluminum products, so that a clamp clamps a plurality of aluminum products at a time and then immerses the aluminum products into a solution, however, the design cannot process small aluminum sheets.

2. The traditional aluminum product passivation device drives an aluminum product to shuttle in a plurality of solutions through a clamp so as to remove surface impurities, clean the aluminum product again, passivate the aluminum product again and clean the aluminum product again, thus completing the passivation work of the whole aluminum product; but because of the plurality of solution tanks arranged in a straight line, the occupied area is huge, thereby causing the increase of the production cost.

3. The existing aluminum product passivation device avoids the problem that the residual solution on the surface of a workpiece pollutes other solution pools, so that after the reaction of one chemical solution pool is completed, the chemical solution pool is lifted above a solution tank to be drained and then is immersed into the next solution pool, however, the draining usually needs short time, so that the production efficiency is reduced.

4. The clamp of the traditional aluminum product passivation device clamps a workpiece and immerses the workpiece into solution, the clamped part is not changed, and the clamped part of the workpiece is not immersed by the solution, so that the clamped part of the workpiece does not react with the solution, and the passivation of the whole workpiece is incomplete.

In view of the above, in order to overcome the above technical problems, the present invention provides a surface passivation treatment system for aluminum products, which solves the above technical problems.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: the aluminum product passivation device is basically in a production line mode, occupies a large area, has high power consumption, causes high cost, and is easy to corrode and difficult to replace as a transmission roller and a transmission part thereof which are immersed in an acid solution for a long time.

In order to achieve the above purpose, the invention provides the following technical scheme:

the invention provides an aluminum product surface passivation treatment system which comprises a base, a conveyor belt, a feeding assembly, a processing assembly, a clamping assembly and a control system, wherein the conveyor belt is used for conveying workpieces to stations;

the feeding assembly comprises supporting rods, rotating rods, transmission bevel gears and power bevel gears, the lower ends of the supporting rods rotate on the base, the transmission bevel gears are mounted at the lower parts of the supporting rods, four rotating rods which are distributed in a horizontal cross manner are fixedly mounted at the upper ends of the supporting rods, two adjacent rotating rods are perpendicular to each other, a sliding groove is formed in the lower end face of each rotating rod, two clamping assemblies are mounted on the sliding groove in a sliding manner, and the conveying belt is located on the left side of the base;

the processing subassembly includes support frame, pivot, cross and liquid reserve tank, the support frame sets up in the base right side, the pivot has run through the support frame completely and has rotated with it and be connected, pivot right-hand member fixedly connected with motor, the cross is located between support frame and the base, the cross center is run through by the pivot, cross and pivot fixed connection, four ends of cross respectively rotate and install a liquid reserve tank, the pivot right-hand member rotates with the base to be connected, pivot left part fixed connection has power bevel gear, power bevel gear and transmission bevel gear meshing.

Preferably, the transmission ratio of the power bevel gear to the transmission bevel gear is 4.

Preferably, the centre gripping subassembly includes movable trolley, telescopic link, elevator and gripper jaw, rotate on the movable trolley and install four wheels, install the motor in the movable trolley, motor and wheel fixed connection, movable trolley lower extreme fixedly connected with telescopic link, telescopic link lower extreme fixed connection elevator, the gripper jaw is installed in the elevator lower extreme rotation, the gripper jaw is whole to be acidproof corrosion-resistant material, be equipped with the micro-machine in the elevator, the micro-machine is used for controlling the gripper jaw and accomplishes clamping work.

Preferably, the gripper jaw includes well core rod and gyro wheel, well core rod one end rotates with the elevator and is connected, the gyro wheel is installed on well core rod with the axle center, be equipped with the micro motor in the well core rod, the micro motor is used for controlling the gyro wheel and rotates.

Preferably, a boss is fixedly mounted on the conveyor belt.

Preferably, the two sides of the liquid storage tank are respectively and fixedly provided with an arc scraper.

Preferably, two side edges of the liquid storage tank are mutually perpendicular, and the intersection point of extension lines of the liquid storage tank is the center of the base.

Preferably, the support frame top is provided with drying assembly, drying assembly includes linking arm and drying brush, drying brush is acidproof corrosion-resistant material, linking arm one end is rotated with the support frame and is connected, drying brush is articulated with the linking arm.

Preferably, the drying assembly further comprises an air blower, the air blower is used for drying the workpiece, and a heating wire is arranged in the air blower.

Preferably, a temperature sensor is further arranged on the drying brush.

The invention has the following beneficial effects:

1. according to the surface passivation treatment system for the aluminum product, the four liquid storage tanks of the processing assembly are vertically distributed instead of horizontally arranged, and meanwhile, the feeding assembly is designed to rotate instead of linearly operate, so that the occupied area of the whole system is much smaller than that of the prior art, the space is saved, and the cost is reduced.

2. The invention discloses a surface passivation treatment system for aluminum products, which is different from the prior art that a plurality of motors drive driving rollers to drive the aluminum products to move so as to process: the invention drives the rotating shaft to rotate through a motor, thereby driving the processing component fixedly arranged on the rotating shaft to rotate, and the power bevel gear at the other end of the rotating shaft drives the transmission bevel gear to rotate, thereby driving the transmission of the whole feeding component, and the passivation operation of the aluminum product can be realized through the transmission; in summary, the whole device can be driven to operate only by one motor, so that the power consumption is low, the energy is saved, and the cost is reduced.

3. According to the surface passivation treatment system for the aluminum product, the clamping claw is provided with the roller, so that the roller can roll on the workpiece, the clamping part is changed, the situation that the clamping part is not soaked by the solution is avoided, and all parts of the whole workpiece are soaked.

4. According to the surface passivation treatment system for the aluminum product, the arc scrapers are arranged on the two side walls of the liquid storage box to scrape off residual solution, the drying assembly is arranged, and the drying brush and the air blower can further dry the workpiece, so that the solution remained on the surface of the workpiece can be prevented from polluting the solution in the next liquid storage box.

5. According to the surface passivation treatment system for the aluminum product, the temperature sensor is arranged on the drying brush, the surface temperature of the workpiece can be detected, so that the heat of air blown out by the air blower is controlled through the control system, and the phenomenon that the oxidation layer is damaged due to the fact that the aluminum product and passivation solution continuously react due to overhigh temperature of the workpiece can be avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a front view of the present invention;

FIG. 2 is a schematic view of a feed assembly of the present invention;

FIG. 3 is a schematic view of a tooling assembly of the present invention;

FIG. 4 is a schematic view of a drying assembly of the present invention;

figure 5 is a schematic view of the clamping assembly of the present invention.

In the figure: the device comprises a base 1, a conveyor belt 2, a boss 21, a feeding component 3, a support rod 31, a rotating rod 32, a transmission bevel gear 33, a power bevel gear 34, a processing component 4, a support frame 41, a rotating shaft 42, a cross 43, a liquid storage tank 44, an arc scraper 441, a clamping component 5, a sliding vehicle 51, an expansion rod 52, a lifting block 53, a clamping claw 54, a central rod 541, a roller 542, a drying component 6, a connecting arm 61, a drying brush 62 and a blower 63.

Detailed Description

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

The invention provides a surface passivation treatment system for an aluminum product, which is taken as a specific embodiment of the invention and comprises a base 1, a conveyor belt 2, a feeding assembly 3, a processing assembly 4, a clamping assembly 5 and a control system, wherein the conveyor belt 2 is used for conveying workpieces to a station, the feeding assembly 3 is used for conveying the workpieces from the conveyor belt 2 to the processing assembly 4, and the processing assembly 4 is used for passivating the workpieces:

the feeding assembly 3 comprises a support rod 31, a rotating rod 32, a transmission bevel gear 33 and a power bevel gear 34, the lower end of the support rod 31 rotates on the base 1, the transmission bevel gear 33 is installed at the lower part of the support rod 31, four rotating rods 32 which are horizontally distributed in a cross shape are fixedly installed at the upper end of the support rod 31, and two adjacent rotating rods 32 are vertical to each other; a sliding groove is formed in the lower end face of each rotating rod 32, two clamping assemblies 5 are slidably mounted on the sliding groove, the two clamping assemblies 5 can clamp workpieces and move on the sliding groove, so that the workpieces can be conveniently immersed in a solution, the two clamping assemblies 5 are respectively arranged below the four rotating rods 32, and the feeding assembly 3 can simultaneously drive the four workpieces to operate; the conveyor belt 2 is positioned on the left side of the base 1;

the processing assembly 4 comprises a support frame 41, a rotating shaft 42, a cross 43 and a liquid storage tank 44, the support frame 41 is arranged on the right side of the base 1, and the support frame 41 and the conveyor belt 2 are respectively positioned on two sides of the base 1, so that labor division is facilitated; the rotating shaft 42 completely penetrates through the support frame 41 and is connected with the support frame in a rotating mode, the right end of the rotating shaft 42 is fixedly connected with the motor, the cross 43 is located between the support frame 41 and the base 1, the center of the cross 43 is penetrated through by the rotating shaft 42, and the cross 43 is fixedly connected with the rotating shaft 42; the four ends of the cross 43 are respectively rotatably provided with a liquid storage tank 44, the liquid storage tanks 44 are made of acid-base corrosion-resistant materials, the liquid storage tank 44 at the top end can enable a workpiece above the liquid storage tank to be just immersed into the liquid storage tanks, the four liquid storage tanks 44 sequentially contain solutions of aluminum product cleaning liquid, clear water, acidic passivation liquid and clear water, and the motor can drive the cross 43 to rotate, so that the four liquid storage tanks 44 are in contact with the workpiece alternately; the rotating shaft 42 is rotatably connected with the base 1, the power bevel gear 34 is fixedly connected to the left part of the rotating shaft 42, the power bevel gear 34 is meshed with the transmission bevel gear 33, and the feeding component 3 can be driven to rotate by means of meshing of the power bevel gear 34 and the transmission bevel gear 33, so that the purpose that the whole device can be driven by only one motor is achieved; the two sides of the liquid storage tank 44 are perpendicular to each other, and the intersection point of the extension lines of the liquid storage tank 44 is the center of the base 1, so that a workpiece can be just immersed into the liquid storage tank 44 when the workpiece just enters the processing area, and when the workpiece rotates by 90 degrees, the workpiece cannot be immersed into the first liquid storage tank 44 and the next workpiece is just immersed into the liquid storage tank 44.

The transmission ratio of the power bevel gear 34 to the transmission bevel gear 33 is 4, when the feeding assembly 3 rotates by 90 degrees, namely when one workpiece is positioned in the working interval of the machining assembly 4, the machining assembly 4 just rotates by one turn, and the four liquid storage tanks 44 can alternately appear at the top so as to enable the workpiece to be immersed and machined.

The rotating shaft 42 is driven to rotate by a motor, and the power of the motor is meshed with the transmission bevel gear 33 by the power bevel gear 34 to drive the feeding assembly 3 to rotate; when a rotating rod 32 of the feeding component 3 rotates to a position above the conveyor belt 2 and is perpendicular to the conveying direction, the clamping component 5 clamps the workpiece on the conveyor belt, and then the feeding component 3 rotates 135 degrees to enable the workpiece to just enter the processing section of the processing component 4.

At the moment, the workpiece can be immersed into the first liquid storage tank 44, aluminum product cleaning liquid is filled in the first liquid storage tank 44, and oil stains, impurities, dust and other impurities on the surface of the workpiece can be cleaned through the solution; then the motor drives the cross 43 to rotate continuously for 90 degrees, so that the workpiece is immersed into the second liquid storage tank 44, the second liquid storage tank 44 is filled with clear water, and the immersed workpiece can clean the residual solution on the surface to avoid polluting the solution in other liquid storage tanks 44; then the motor drives the cross 43 to rotate continuously for 90 degrees, so that the workpiece is immersed into the third liquid storage tank 44, the third liquid storage tank 44 is filled with acidic passivation solution, and the acidic passivation solution can generate oxidation-reduction reaction with the surface of the aluminum product to form a compact passivation protective layer on the surface of the aluminum product; then the motor drives the cross 43 to rotate 90 degrees continuously, so that the workpiece is immersed in the fourth liquid storage tank 44, the fourth liquid storage tank 44 is filled with clear water, and the workpiece can be cleaned by residual unreacted acidic passivation solution on the surface after being immersed, so as to prevent other parts from being polluted.

At this moment, the motor drives the rotating shaft 42 to rotate 360 degrees, the cross 43 also rotates 360 degrees, and the transmission ratio of the power bevel gear 34 to the transmission bevel gear 33 is 4, so that the feeding component 3 rotates 90 degrees, the passivation of a workpiece clamped by one clamping component 5 is just completed, and the passivated workpiece can be sent back to the conveyor belt 2 by rotating 135 degrees again. Therefore, the processing of one workpiece is completed, and when the motor drives the feeding assembly 3 to rotate for one circle, the cross 43 can rotate for four circles, so that the passivation process of four workpieces is completed.

Compared with the existing aluminum product blunt device, the device has the advantages that the occupied area is much smaller, the power consumption is reduced because the feeding and processing can be completed by only one motor, and the production cost is reduced because the occupied area and the power consumption are reduced.

As a specific embodiment of the present invention, referring to fig. 5, the clamping assembly 5 includes a sliding cart 51, a telescopic rod 52, a lifting block 53 and a clamping jaw 54, four wheels are rotatably mounted on the sliding cart 51, a motor is mounted in the sliding cart 51, the motor is fixedly connected to the wheels, and the motor can drive the wheels to rotate under the control of a control system, so that the sliding cart 51 moves linearly in the sliding groove; the lower end of the sliding trolley 51 is fixedly connected with an expansion link 52, the lower end of the expansion link 52 is fixedly connected with a lifting block 53, the expansion link 52 can control the lifting block 53 to be lifted to a position close to the conveyor belt 2 where the workpiece can be clamped, and meanwhile, the lifting block 53 can be lowered to a proper height in a processing area so that the workpiece can be immersed in the solution; the lower end of the lifting block 53 is rotatably provided with a clamping claw 54, a small motor is arranged in the lifting block 53, the small motor can control the clamping claw 54 to swing, the two clamping claws 54 can complete clamping action in a swinging matching mode, and the clamping claw 54 can clamp a workpiece just and does not damage the workpiece.

Gripper jaw 54 includes well core rod 541 and gyro wheel 542, well core rod 541 one end rotates with the elevator 53 to be connected, gyro wheel 542 rotates with the axle center and installs at well core rod 541 surface, also is equipped with the micro motor in well core rod 541, and the micro motor can control gyro wheel 542 and rotate, and the rotation of gyro wheel 542 can make the relative centre gripping subassembly 5 of work piece take place the motion.

The conveying belt 2 is fixedly provided with a boss 21, and the boss 21 is designed to suspend the aluminum product in the air so as to facilitate the clamping of the clamping assembly 5.

When a rotating rod 32 of the feeding assembly 3 rotates to a position above the conveyor belt 2 and is vertical to the conveying direction, the clamping assembly 5 below the rotating rod 32 slides to a proper position under the control of the control system, then the telescopic rod 52 extends, the lifting block 53 and the clamping claw 54 descend to a proper height above the position of the boss 21, at the moment, the clamping claw 54 grabs the side edge of the workpiece, and then the telescopic rod 52 contracts to drive the lifting block 53 and the workpiece to move upwards, so that the clamping work is completed; subsequently, when the feeding assembly 3 rotates 135 degrees to enable the workpiece to just enter the processing interval of the processing assembly 4, the telescopic rod 52 is extended to enable the workpiece to be completely immersed in the solution.

When the workpiece is completely immersed in the solution, the sliding trolley 51 moves in the chute, and meanwhile, the roller 542 on the outer side of the central rod 541 also rotates, so that the clamped part is changed, and the whole workpiece is immersed in the solution without missing parts; after completion of the immersion of one solution, the telescopic rod 52 is retracted to a height such that the gripping jaws do not collide with the reservoir 44, the workpiece is then removed from the reservoir 44 as the processing assembly 4 rotates, and the workpiece is then immersed in the next reservoir 44 as the processing assembly 4 continues to rotate, thereby completing the immersion of the four reservoirs 44.

After the immersion into the four reservoirs 44 is completed, the work pieces are returned to the conveyor belt 2, thereby completing the entire process.

As an embodiment of the present invention, referring to fig. 2 and 4, a circular arc scraper 441 is fixedly installed on each side of the storage tank 44, and the circular arc scrapers 441 can scrape off residual solution on the workpiece when the workpiece leaves to prevent other components from being polluted.

The drying assembly 6 is arranged at the top of the supporting frame 41, the drying assembly 6 comprises a connecting arm 61 and a drying brush 62, one end of the connecting arm 61 is rotatably connected with the supporting frame 41, and the drying brush 62 is hinged with the connecting arm 61; the connecting arm 61 is a multi-degree-of-freedom mechanical arm, and when a workpiece leaves one liquid storage tank 44 and is not immersed into the next liquid storage tank 44 temporarily, the control system can control the connecting arm 61 to move, so that the drying brush 62 reaches a proper position to dry and brush the workpiece.

The drying assembly 6 further comprises an air blower 63, the air blower 63 is used for drying the workpiece, a heating wire is arranged in the air blower 63, when the drying brush 62 is used for cleaning the residual solution, dry hot air can be blown out from the air blower 63, and the dry hot air is used for drying the workpiece so as to further clean the residual solution on the workpiece.

Referring to fig. 4, as an embodiment of the present invention, a temperature sensor is further disposed on the drying brush 62.

If the workpiece is overheated, the activity of the aluminum product is increased, and the aluminum product and the passivation solution continue to react, so that an oxide film is damaged; therefore, a temperature sensor for measuring the temperature of the workpiece is provided on the drying brush 62, and the amount of heating of the heating wire in the blower 63 is reduced when the temperature sensor detects that the temperature is higher than a preset value.

The working principle is as follows: the rotating shaft 42 is driven to rotate by a motor, and the power of the motor is meshed with the transmission bevel gear 33 by the power bevel gear 34 to drive the feeding component 3 to rotate; when one rotating rod 32 of the feeding assembly 3 rotates to be above the conveyor belt 2 and is vertical to the conveying direction, the clamping assembly 5 below the rotating rod 32 slides to a proper position under the control of the control system, then the telescopic rod 52 extends, the lifting block 53 and the clamping claw 54 descend to a proper height above the position of the boss 21, at the moment, the clamping claw 54 grabs the side edge of the workpiece, and then the telescopic rod 52 contracts to drive the lifting block 53 and the workpiece to move upwards, so that the clamping work is completed; the feeding assembly 3 is then rotated 135 deg. so that the workpiece just enters the machining zone of the machining assembly 4.

At the moment, the workpiece can be immersed into the first liquid storage tank 44, aluminum product cleaning liquid is filled in the first liquid storage tank 44, and oil stains, impurities, dust and other impurities on the surface of the workpiece can be cleaned through the solution; after the workpiece is immersed into the solution, the telescopic rod 52 is extended to completely immerse the workpiece into the solution, the sliding vehicle 51 moves in the chute, and meanwhile, the roller 542 outside the central rod 541 also rotates, so that the clamped position is changed, and the whole workpiece is immersed into the solution without missing parts; after completion of the immersion of one solution, the telescopic rod 52 is retracted to a height such that the gripping jaws do not collide with the reservoir 44, and the workpiece is then removed from the reservoir 44 as the processing assembly 4 rotates.

When the workpiece leaves one liquid storage tank 44, the arc scraper 441 at the top of the side edge of the liquid storage tank 44 can scrape the residual solution on the workpiece to prevent the pollution to other components; when the workpiece leaves one of the tanks 44 and is not immersed into the next tank 44 for a while, the residual solution on the workpiece can be cleaned by cleaning the drying brush 62, and at the same time, dry hot air can be blown out by the blower 63, and the dry hot air dries the workpiece to further clean the residual solution on the workpiece; in order to avoid the damage of the oxidation film caused by overheating of the workpiece, the drying brush 62 is provided with a temperature sensor, and when the temperature detected by the temperature sensor is higher than a preset value, the heating quantity of the heating wire in the blower 63 is reduced.

Then, the motor drives the cross 43 to rotate continuously, so that the workpiece is immersed into the second liquid storage tank 44, the second liquid storage tank 44 is filled with clear water, and the workpiece can be cleaned from residual solution on the surface to pollute the solution in other liquid storage tanks 44 after being immersed; then the motor drives the cross 43 to continue rotating, so that the workpiece is immersed in the third liquid storage tank 44, the third liquid storage tank 44 is filled with acidic passivation solution, and the acidic passivation solution can generate oxidation-reduction reaction with the surface of the aluminum product to form a compact passivation protective layer on the surface of the aluminum product; then, the motor drives the cross 43 to continuously rotate, so that the workpiece is immersed into the fourth liquid storage tank 44, the fourth liquid storage tank 44 is filled with clear water, and the workpiece can be cleaned from residual unreacted acidic passivation solution on the surface after being immersed, so that other parts are prevented from being polluted; the immersion process of the second, third and fourth reservoirs 44 is the same as for the first reservoir 44, while the drying process after leaving the reservoirs 44 is the same.

The foregoing shows and describes the general principles, principal 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, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. An aluminum product surface passivation treatment system comprises a base (1), a conveyor belt (2), a feeding assembly (3), a processing assembly (4), a clamping assembly (5) and a control system, wherein the conveyor belt (2) is used for conveying workpieces to a station, the feeding assembly (3) is used for conveying the workpieces from the conveyor belt (2) to the processing assembly (4), the processing assembly (4) is used for passivating the workpieces, and the aluminum product surface passivation treatment system is characterized in that:

the feeding assembly (3) comprises a supporting rod (31), rotating rods (32), a transmission bevel gear (33) and a power bevel gear (34), the lower end of the supporting rod (31) rotates on the base (1), the transmission bevel gear (33) is installed on the lower portion of the supporting rod (31), four rotating rods (32) which are distributed horizontally and crosswise are fixedly installed at the upper end of the supporting rod (31), two adjacent rotating rods (32) are perpendicular to each other, a sliding groove is formed in the lower end face of each rotating rod (32), two clamping assemblies (5) are installed on the sliding groove in a sliding mode, and the conveying belt (2) is located on the left side of the base (1);

processing subassembly (4) include support frame (41), pivot (42), cross (43) and liquid reserve tank (44), support frame (41) set up in base (1) right side, pivot (42) have run through support frame (41) completely and have rotated with it and be connected, pivot (42) right-hand member fixedly connected with motor, cross (43) are located between support frame (41) and base (1), cross (43) center is run through by pivot (42), cross (43) and pivot (42) fixed connection, four ends of cross (43) respectively rotate and install one liquid reserve tank (44), pivot (42) right-hand member and base (1) rotate and are connected, pivot (42) left part fixed connection has power bevel gear (34), power bevel gear (34) and transmission bevel gear (33) meshing.

2. The aluminum product surface passivation treatment system of claim 1, characterized in that: the transmission ratio of the power bevel gear (34) to the transmission bevel gear (33) is 4.

3. The aluminum product surface passivation treatment system of claim 2, characterized in that: centre gripping subassembly (5) are including sliding car (51), telescopic link (52), lifting block (53) and gripper jaw (54), it installs four wheels to rotate on sliding car (51), install the motor in sliding car (51), motor and wheel fixed connection, sliding car (51) lower extreme fixedly connected with telescopic link (52), telescopic link (52) lower extreme fixed connection lifting block (53), gripper jaw (54) are installed in lifting block (53) lower extreme rotation, be equipped with the small-size motor in lifting block (53), the small-size motor is used for controlling gripper jaw (54) and accomplishes the centre gripping work.

4. The aluminum product surface passivation treatment system of claim 3, characterized in that: the centre gripping is grabbed including well core rod (541) and gyro wheel (542), well core rod (541) one end rotates with elevator (53) to be connected, gyro wheel (542) are installed on well core rod (541) with the axle center, be equipped with small motor in well core rod (541), small motor is used for control roller (542) to rotate.

5. The system for passivating treatment of the surface of an aluminum product according to claim 4, wherein: and a boss (21) is fixedly arranged on the conveyor belt (2).

6. The aluminum product surface passivation treatment system of claim 5, characterized in that: and arc scrapers (441) are fixedly arranged on two side edges of the liquid storage box (44) respectively.

7. The aluminum product surface passivation treatment system of claim 6, characterized in that: two side edges of the liquid storage tank (44) are mutually vertical, and the intersection point of extension lines of the liquid storage tank is the center of the base (1).

8. The system for passivating treatment of the surface of an aluminum product according to claim 7, wherein: support frame (41) top is provided with drying assembly (6), drying assembly (6) are including connecting arm (61) and drying brush (62), connecting arm (61) one end is rotated with support frame (41) and is connected, drying brush (62) are articulated with connecting arm (61).

9. The aluminum product surface passivation treatment system of claim 8, characterized in that: the drying assembly (6) further comprises an air blower (63), the air blower (63) is used for drying workpieces, and a heating wire is arranged in the air blower (63).

10. The aluminum product surface passivation treatment system of claim 9, wherein: and a temperature sensor is also arranged on the drying brush (62).