Surface treatment equipment and treatment process for a profiled metal structure

Abstract

The present application relates to the technical field of surface treatment equipment, in particular to a surface treatment equipment for special-shaped metal structure and a treatment process, which comprises a rack, a separation ring, an inner rotating drum, an outer rotating drum, a clamping disc, a first driving mechanism and a second driving mechanism. The surface treatment equipment for special-shaped metal structure can simultaneously perform surface treatment on multiple workpieces, and has high treatment efficiency. The inner rotating drum and the outer rotating drum are driven to rotate by the first driving mechanism, and then the abrasive rotates in the treatment cavity. The workpiece is driven to rotate in the mounting hole by the second driving mechanism, so that complex relative motion is formed between the abrasive and the workpiece, the treatment dead angle is eliminated, and the uniformity and consistency of the surface treatment effect on the workpiece of the special-shaped metal structure are ensured. The surface treatment process for special-shaped metal structure proposed by the present application is more thorough for the surface treatment of the workpiece of the special-shaped metal structure, has no treatment dead angle, has better uniformity of surface treatment, and has higher treatment efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of surface treatment equipment, in particular to a surface treatment equipment for special-shaped metal structure and a treatment process. BACKGROUND

[0002] Surface treatment is of great significance in industrial manufacturing. By changing the physical and chemical properties of the material surface, the comprehensive performance of the product is improved. As a key process of surface treatment, the purpose of polishing is to eliminate the micro-unevenness, scratches and defect layer left by the previous processing of the material, so as to obtain extremely low surface roughness, smooth texture and even mirror-like optical effect. When polishing a batch of workpieces, a drum-type polishing machine is used. Through the continuous rotation of the drum or the high-frequency vibration of the groove, continuous and uniform friction between the workpiece and the abrasive is generated, so as to realize deburring, descaling, chamfering, reducing surface roughness and polishing.

[0003] However, when the surface treatment equipment in the prior art is used to treat workpieces with special-shaped metal structure, especially slender workpieces, the workpiece needs to be inserted into the abrasive and move relative to it. The whole workpiece will be subjected to uneven resistance of the abrasive, and is prone to bending deformation, which causes the shape precision of the processed parts to be unable to meet the requirements, and the product yield is low. Moreover, in the process of treating special-shaped metal workpieces with complex geometry, slender structure or steps and grooves, treatment dead angles are easily generated, which causes poor uniformity of the overall surface treatment of the workpiece and affects the consistency of product quality. SUMMARY

[0004] In view of the deficiencies of the prior art, the present application provides a surface treatment equipment for special-shaped metal structure and a treatment process. The surface treatment equipment for special-shaped metal structure solves the problems of poor uniformity of workpiece surface treatment and bending deformation of the workpiece during surface treatment of special-shaped workpieces in the prior art. The surface treatment process for special-shaped metal structure has higher treatment efficiency and more thorough and uniform treatment effect.

[0005] The surface treatment equipment for special-shaped metal structure of the present application adopts the following technical scheme, which comprises:

[0006] A rack is provided with a discharge port in the lower part;

[0007] A plurality of partition rings are provided. The plurality of partition rings are spaced apart along the vertical direction and are fixedly connected to the rack. A plurality of mounting holes penetrating upward and downward are formed in the partition ring. The plurality of mounting holes are uniformly distributed along the circumference of the partition ring;

[0008] The inner rotating drum is arranged above the plurality of partition rings and is arranged vertically between two adjacent partition rings.

[0009] The outer rotating drum is arranged above the plurality of partition rings and is coaxially arranged outside the inner rotating drum.

[0010] The clamping disc is arranged above the plurality of partition rings and is coaxially arranged with the mounting hole.

[0011] The first driving mechanism is used to drive the inner rotating drum and the outer rotating drum to rotate.

[0012] The second driving mechanism is used to drive the clamping disc to rotate and vertically move.

[0013] Optionally, the partition ring is in a wave shape in the circumferential direction, the push plate is vertically movably arranged on the inner rotating drum and the outer rotating drum, and the lower end of the push plate is in contact with the upper surface of the partition ring.

[0014] Optionally, the axis of the mounting hole is located at the peak or the valley of the partition ring.

[0015] Optionally, the first driving mechanism is used to drive the adjacent two outer rotating drums to rotate in opposite directions and to drive the inner rotating drum and the outer rotating drum at the same height to rotate in the same direction.

[0016] Optionally, the outer rotating drum and the inner rotating drum rotate at different speeds to make the rotating speed of the abrasive relative to the workpiece equal in the radial direction of the partition ring.

[0017] Optionally, the first driving mechanism comprises an inner gear ring, an outer gear ring, a transmission shaft, an inner transmission gear, an outer transmission gear and a driving motor. The driving motor is arranged in four, and is fixedly connected to the rack. The transmission shaft is arranged in four, and is synchronously rotatably connected to the output end of the four driving motors. The transmission shaft is rotatably arranged on the rack, and two of the transmission shafts are arranged on the inner side of the inner rotating drum, and the other two are arranged on the outer side of the outer rotating drum. The inner gear ring is fixedly connected to the inner wall of the inner rotating drum. The outer gear ring is fixedly connected to the outer wall of the outer rotating drum. The inner transmission gear and the outer transmission gear are arranged in multiple. The plurality of inner transmission gears are arranged in the vertical direction, and the adjacent two inner transmission gears are synchronously rotatably arranged on the two transmission shafts arranged on the inner side of the inner rotating drum. The plurality of outer transmission gears are arranged in the vertical direction, and the adjacent two outer transmission gears are synchronously rotatably arranged on the two transmission shafts arranged on the outer side of the outer rotating drum. The inner transmission gear is engaged with the inner gear ring, and the outer transmission gear is engaged with the outer gear ring.

[0018] Optionally, the partition ring is provided with a plurality of upper and lower through air holes, the air holes are arranged obliquely, and upper ends of the air holes extend to the axis direction of the partition ring; a plurality of air channels are arranged below the partition ring, the air channels are communicated with the plurality of air holes, and the air channels are connected with an air pump.

[0019] Optionally, the second driving mechanism comprises a longitudinal assembly and a circumferential assembly; the longitudinal assembly comprises a hydraulic cylinder and a synchronous disc, and an output end of the hydraulic cylinder is connected with the synchronous disc; a plurality of clamping discs are uniformly distributed along the circumference of the synchronous disc, and the clamping discs are rotatably installed on the synchronous disc.

[0020] Optionally, the circumferential assembly comprises a rotating motor, a driving wheel and a plurality of driven wheels; the plurality of driven wheels are synchronously rotatably connected with the plurality of clamping discs respectively; the driving wheel is rotatably installed on the synchronous disc and is engaged with the plurality of driven wheels; and an output end of the rotating motor is connected with the driving wheel.

[0021] The surface treatment process of the special-shaped metal structure comprises the following steps:

[0022] S1, the workpiece is installed on the clamping disc by driving the clamping disc upwardly by the second driving mechanism;

[0023] S2, the workpiece is inserted into the installation hole by driving the clamping disc downwardly by the second driving mechanism;

[0024] S3, the discharge port is closed, and the abrasive is injected into the treatment cavity until the abrasive fills in all the treatment cavities;

[0025] S4, the inner rotating drum and the outer rotating drum are driven to rotate by the first driving mechanism;

[0026] S5, the plurality of clamping discs are driven to rotate by the second driving mechanism;

[0027] S6, after the polishing is completed, the first driving mechanism and the second driving mechanism are closed, and the discharge port is opened, and the abrasive is discharged from the rack.

[0028] The surface treatment equipment for the special-shaped metal structure can simultaneously perform surface treatment on a plurality of workpieces, and has high treatment efficiency.

[0029] Further, by setting the partition ring as a wave shape, and setting the axis of the mounting hole at the wave crest or trough of the partition ring. Under the pushing of the push plate, the trajectory of the abrasive rotating in the processing cavity can be divided into circumferential rotation and vertical movement. When the push plate moves from the trough position of the partition ring to the crest position, the push plate moves upward, the abrasive moves upward relative to the workpiece, and the abrasive processes the lower surface of the outward protruding position of the workpiece; when the push plate moves from the crest position of the partition ring to the trough position, the push plate moves downward, the abrasive moves downward relative to the workpiece, and the abrasive processes the upper surface of the outward protruding position of the workpiece, further achieving more uniform and complete processing of the workpiece.

[0030] Further, the rotating directions of the two adjacent outer rotating cylinders are opposite, and the inner rotating cylinder and the outer rotating cylinder at the same height rotate in the same direction at different speeds. The abrasive forms a more complex and uniform composite force field around the workpiece, further improving the efficiency and consistency of surface treatment, and also helping to offset the vibration during equipment operation, solving the problem of bending deformation of the slender workpiece caused by the action force of the abrasive. And in the radial direction of the partition ring, the rotating speed of the abrasive relative to the workpiece is equal, solving the problem of uneven processing of the workpiece caused by the too large relative rotating speed difference between the workpiece and the abrasive, and the problem of damage to the workpiece caused by the vibration of the workpiece during the rotation of the mounting hole due to the different speeds of the abrasive at different positions.

[0031] Further, by setting the air hole and the air channel, an inward and upward force is applied to the abrasive, thereby solving the problem of the abrasive accumulating outside the partition ring under the action of the centrifugal force, ensuring the uniformity and flowability of the abrasive distribution, and thereby maintaining the continuous and stable surface treatment effect. And in the radial direction of the partition ring, the passivation degree of the abrasive tends to be consistent, thereby improving the utilization rate of the abrasive.

[0032] The surface treatment process of the special-shaped metal structure provided by the application is more complete for the surface treatment of the workpiece of the special-shaped metal structure, has no treatment dead angle, has better uniformity of surface treatment, and has higher processing efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0033] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0034] Figure 1 It is a whole structure schematic view of the surface treatment equipment of the special-shaped metal structure of the application.

[0035] Figure 2Front view of the surface treatment equipment for the special-shaped metal structure of the present application;

[0036] Figure 3 Side view of the surface treatment equipment for the special-shaped metal structure of the present application;

[0037] Figure 4 For Figure 2 A-A cross-sectional view in the middle;

[0038] Figure 5 For Figure 3 B-B cross-sectional view in the middle;

[0039] Figure 6 Structure schematic diagram of the surface treatment equipment for the special-shaped metal structure of the present application after being cut open;

[0040] Figure 7 For Figure 6 Enlarged view at X in the middle;

[0041] Figure 8 For Figure 6 Enlarged view at Y in the middle;

[0042] Figure 9 Explosion schematic diagram of the internal structure of the rack in the surface treatment equipment for the special-shaped metal structure of the present application;

[0043] Figure 10 Structure schematic diagram of the separation ring, the inner rotating cylinder and the outer rotating cylinder in the surface treatment equipment for the special-shaped metal structure of the present application;

[0044] Figure 11 For Figure 10 Front view of the structure in the middle;

[0045] Figure 12 For Figure 11 C-C cross-sectional view in the middle;

[0046] Figure 13 For Figure 12 Enlarged view at Z in the middle;

[0047] Figure 14 Structure schematic diagram of the second driving mechanism in the surface treatment equipment for the special-shaped metal structure of the present application;

[0048] Figure 15 For Figure 14 Explosion schematic diagram of the structure in the middle.

[0049] In the figure:

[0050] 100, rack; 110, discharge port; 120, safety door; 130, guide plate;

[0051] 200, Separator ring; 201, Air vent; 202, Air passage; 203, Air pump; 210, Mounting hole;

[0052] 300. Inner rotating cylinder; 310. Push plate;

[0053] 400. External rotating cylinder;

[0054] 500, clamping plate;

[0055] 600, First drive mechanism; 610, Internal gear ring; 620, External gear ring; 630, Drive shaft; 640, Internal drive gear; 650, External drive gear; 660, Drive motor;

[0056] 700. Second drive mechanism; 710. Hydraulic cylinder; 720. Synchronous disc; 730. Rotary motor; 740. Drive wheel; 750. Driven wheel;

[0057] 800. Workpiece. Detailed Implementation

[0058] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0059] like Figures 1 to 15 As shown, the surface treatment equipment for irregularly shaped metal structures provided by the present invention includes a frame 100, a partition ring 200, an inner rotating cylinder 300, an outer rotating cylinder 400, a clamping plate 500, a first driving mechanism 600, and a second driving mechanism 700.

[0060] A discharge port 110 is provided at the lower part of the frame 100; a safety door 120 is slidably installed on the frame 100;

[0061] Multiple partition rings 200 are provided; the multiple partition rings 200 are distributed at intervals in the vertical direction, and the partition rings 200 are fixedly connected to the frame 100; multiple vertically penetrating mounting holes 210 are provided on the partition rings 200; the multiple mounting holes 210 are evenly distributed along the circumference of the partition rings 200.

[0062] Multiple inner rotating cylinders 300 are provided, and the multiple inner rotating cylinders 300 are respectively located above multiple partition rings 200. The inner rotating cylinders 300 are vertically arranged, and the upper and lower ends of the inner rotating cylinder 300 located between two partition rings 200 abut against the upper and lower partition rings 200.

[0063] The plurality of outer rotating drums 400 are arranged above the plurality of partition rings 200 and coaxially arranged outside the inner rotating drum 300; the outer rotating drum 400 is rotatably arranged on the frame 100 and located outside the inner rotating drum 300; the outer rotating drum 400, the inner rotating drum 300 and the partition ring 200 define a processing cavity, and the processing cavity is filled with abrasive; the lower side of the inside of the frame 100 is provided with a guide plate 130, the guide plate 130 is arranged obliquely, and the side of the guide plate 130 close to the discharge port 110 is lower than the side away from the discharge port 110, so as to guide the abrasive to the discharge port 110; the outer wall of the inner rotating drum 300 and the inner wall of the outer rotating drum 400 are connected with a plurality of push plates 310, and the plurality of push plates 310 are distributed along the circumference;

[0064] The plurality of clamping discs 500 are arranged along the circumference of the inner rotating drum 300, the clamping disc 500 is coaxially arranged with the mounting hole 210, and the clamping disc 500 is movably arranged on the frame 100 and rotatably arranged around the axis of the clamping disc 500; the clamping disc 500 is used for clamping the workpiece 800; a plurality of workpieces 800 can be arranged on the clamping disc 500;

[0065] The first driving mechanism 600 is used for driving the inner rotating drum 300 and the outer rotating drum 400 to rotate;

[0066] The second driving mechanism 700 is used for driving the clamping disc 500 to rotate and vertically move.

[0067] When the workpiece 800 is subjected to surface treatment, the clamping disc 500 is moved upward by the second driving mechanism 700, and the workpiece 800 is arranged on the clamping disc 500; the clamping disc 500 is moved downward by the second driving mechanism 700, and the second driving mechanism 700 is inserted into the mounting hole 210; the abrasive is injected into the uppermost processing cavity, and the abrasive falls from the mounting hole 210 to the lower processing cavity until the processing cavities are filled with the abrasive; at this time, the inner rotating drum 300 and the outer rotating drum 400 are driven to rotate by the first driving mechanism 600, the inner rotating drum 300 and the outer rotating drum 400 rotate in the same direction, the inner rotating drum 300 and the outer rotating drum 400 drive the push plate 310 to rotate, and then drive the abrasive in the processing cavity to rotate, the clamping disc 500 is driven to rotate by the second driving mechanism 700, the workpiece 800 is driven to rotate in the mounting hole 210 when the clamping disc 500 rotates, the abrasive is subjected to surface treatment on the workpiece 800 when the abrasive rotates relative to the workpiece 800, and the abrasive is discharged from the frame 100 after the polishing is completed.

[0068] The surface treatment equipment for special-shaped metal structures provided by the application can simultaneously perform surface treatment on multiple workpieces 800, and has high treatment efficiency. The inner rotating drum 300 and the outer rotating drum 400 are driven to rotate by the first driving mechanism 600, and then the abrasive is rotated in the treatment cavity. The workpiece 800 is driven to rotate in the mounting hole 210 by the second driving mechanism 700, so that complex relative motion is formed between the abrasive and the workpiece 800, the treatment dead angle is eliminated, and the uniformity and consistency of the surface treatment effect on the workpiece 800 of the special-shaped metal structure are ensured.

[0069] In a further embodiment, as shown in Figure 10 、 Figure 11 、 Figure 12 、 Figure 13 The separation ring 200 is wavy in the circumferential direction, the abrasive is rotated in the treatment cavity under the pushing of the push plate 310, the movement track of the abrasive can be divided into circumferential rotation and vertical movement, and the uniformity of the surface treatment on the workpiece 800 is further improved, and the treatment dead angle is avoided. The push plate 310 is movably installed on the inner rotating drum 300 and the outer rotating drum 400, the lower end of the push plate 310 is in contact with the upper surface of the separation ring 200, so that when the push plate 310 moves from the trough position to the peak position of the separation ring 200, the push plate 310 moves upward, and when the push plate 310 moves from the peak position to the trough position of the separation ring 200, the push plate 310 moves downward.

[0070] In a further embodiment, the axis of the mounting hole 210 is located at the peak or trough of the separation ring 200. This layout makes the workpiece 800 located in the region with the strongest kinetic energy of the abrasive flow field, enhances the impact force and shearing action of the abrasive on the surface of the workpiece 800, and further improves the treatment efficiency. At the same time, cooperating with the rotation of the workpiece 800 in the mounting hole 210, in the process of polishing, the abrasive has a stage of moving upward and a stage of moving downward relative to the workpiece 800; in the process of the abrasive moving upward relative to the workpiece 800, the lower surface of the outward protruding position of the workpiece 800 can be treated; in the process of the abrasive moving downward relative to the workpiece 800, the upper surface of the outward protruding position of the workpiece 800 can be treated, and more uniform and complete treatment of the workpiece 800 is further realized.

[0071] In another embodiment, as shown in Figure 10As shown, the axis of the mounting hole 210 is located between the wave crest and wave trough of the partition ring 200, and the first driving mechanism 600 drives the inner drum 300 and the outer drum 400 to rotate reciprocally. When the abrasive moves from the wave trough to the wave crest in the processing cavity, the lower surface of the workpiece 800 protruding outward at this position can be better processed; when the abrasive moves from the wave crest to the wave trough in the processing cavity, the upper surface of the workpiece 800 protruding outward at this position can be better processed; periodically changing the rotating direction of the inner drum 300 and the outer drum 400 can ensure that the upper and lower surfaces of the workpiece 800 protruding outward at this position can be processed more uniformly.

[0072] In further embodiments, the first driving mechanism 600 makes the rotating directions of two adjacent outer drums 400 opposite, and makes the rotating directions of the inner drum 300 and the outer drum 400 at the same height same. Thus, the abrasive forms a more complex and uniform composite force field around the workpiece 800, further improves the efficiency and consistency of surface processing, and is also beneficial to offset the vibration in the operation of the equipment, and solves the problem of bending deformation of the slender workpiece 800 due to the action of the abrasive force.

[0073] In further embodiments, the outer drum 400 and the inner drum 300 rotate at different speeds, so that the rotating speed of the abrasive relative to the workpiece 800 in the radial direction of the partition ring 200 is equal. For example, when the rotating direction of the workpiece 800 in the mounting hole 210 is the same as the rotating direction of the outer drum 400 and the inner drum 300, the rotating speed of the outer drum 400 is greater than the rotating speed of the inner drum 300. In this case, the rotating speed of the abrasive pushed by the outer push plate 310 relative to the outer workpiece 800 is equal to the difference between the rotating speed of the abrasive and the rotating speed of the workpiece 800, and the rotating speed of the abrasive pushed by the inner push plate 310 relative to the inner workpiece 800 is equal to the sum of the rotating speed of the abrasive and the rotating speed of the workpiece 800, thereby solving the problem that the workpiece 800 is not processed uniformly due to the too large difference between the rotating speed of the workpiece 800 and the rotating speed of the abrasive.

[0074] In further embodiments, as shown in FIG. 6, the first driving mechanism 600 is connected to the inner drum 300 and the outer drum 400 through a transmission mechanism 700, and the transmission mechanism 700 is connected to the first driving mechanism 600 through a transmission shaft 710. Figure 9As shown, the first drive mechanism 600 includes an internal gear ring 610, an external gear ring 620, a drive shaft 630, an internal transmission gear 640, an external transmission gear 650, and a drive motor 660. Four drive motors 660 are provided, and each drive motor 660 is fixedly connected to the frame 100. Four drive shafts 630 are provided, each synchronously rotatably connected to the output end of one of the four drive motors 660. The drive shafts 630 are rotatably mounted on the frame 100, with two located inside the inner rotating cylinder 300 and the other two located outside the outer rotating cylinder 400. The internal gear ring 610 is fixedly connected to the inner wall of the inner rotating cylinder 300. The external gear ring 620... 0 is fixedly connected to the outer wall of the outer rotating cylinder 400; multiple inner drive gears 640 and multiple outer drive gears 650 are provided; multiple inner drive gears 640 are distributed at intervals in the vertical direction, and two adjacent inner drive gears 640 are synchronously mounted on two drive shafts 630 located on the inner side of the inner rotating cylinder 300; multiple outer drive gears 650 are distributed at intervals in the vertical direction, and two adjacent outer drive gears 650 are synchronously mounted on two drive shafts 630 located on the outer side of the outer rotating cylinder 400; the inner drive gears 640 mesh with the inner gear ring 610, and the outer drive gears 650 mesh with the outer gear ring 620.

[0075] In a further embodiment, such as Figure 9 , Figure 12 , Figure 13 As shown, the separator ring 200 includes two parts, an upper plate and a lower plate, which are fixedly connected. The upper plate has multiple air holes 201 that run vertically through it. The air holes 201 are inclined and their upper ends extend towards the axis of the separator ring 200. Multiple air passages 202 are provided below the lower plate. The lower ends of the air holes 201 are connected to the air passages 202, and the air passages 202 are connected to an air pump 203. By setting the separator ring 200 as a split structure, it is convenient to perform precision machining and assembly of the air holes 201 and the air passages 202, thereby improving the manufacturability and processability of the parts.

[0076] While the workpiece 800 is being surface treated, gas is injected into the air passage 202 by the air pump 203. The gas in the air passage 202 is blown into the treatment chamber through the air hole 201. Since the upper end of the air hole 201 is inclined towards the axis of the partition ring 200, the airflow exerts an inward and upward force on the abrasive, thereby preventing the abrasive from depositing on the upper surface of the partition ring 200. At the same time, it solves the problem of abrasive accumulating on the outside of the partition ring 200 under the action of centrifugal force, ensuring the uniformity and fluidity of the abrasive distribution, thereby maintaining a continuous and stable surface treatment effect.

[0077] In a further embodiment, such as Figure 14 , Figure 15As shown, the second driving mechanism 700 comprises a longitudinal assembly and a circumferential assembly; the longitudinal assembly comprises a hydraulic cylinder 710 and a synchronous disc 720, the output end of the hydraulic cylinder 710 is connected to the synchronous disc 720; a plurality of clamping discs 500 are uniformly distributed along the circumference of the synchronous disc 720, and the clamping disc 500 is rotatably installed on the synchronous disc 720;

[0078] The circumferential assembly comprises a rotating motor 730, a driving wheel 740 and a plurality of driven wheels 750; the plurality of driven wheels 750 are synchronously rotatably connected to the plurality of clamping discs 500 respectively; the driving wheel 740 is rotatably installed on the synchronous disc 720 and is engaged with the plurality of driven wheels 750; the output end of the rotating motor 730 is connected to the driving wheel 740.

[0079] Working process:

[0080] When the workpiece 800 is subjected to surface treatment, the hydraulic cylinder 710 is started to drive the synchronous disc 720 to move upward, and the synchronous disc 720 drives the clamping disc 500 to move upward; thereafter, the workpiece 800 is installed on the clamping disc 500; thereafter, the synchronous disc 720 is driven downward by the hydraulic cylinder 710, and in the process of moving downward, the clamping disc 500 and the workpiece 800 are synchronously driven downward, and the workpiece 800 is inserted into the mounting hole 210; the discharge port 110 is closed, and the abrasive is injected into the uppermost treatment chamber, and the abrasive falls from the mounting hole 210 to the lower treatment chamber until all the treatment chambers are filled with the abrasive;

[0081] The plurality of driving motors 660, the rotating motor 730 and the air pump 203 are started, and when the plurality of driving motors 660 rotate, the plurality of transmission shafts 630 are driven to rotate, and then the inner transmission gear 640 and the outer transmission gear 650 on the transmission shaft 630 are synchronously driven to rotate, because the inner transmission gear 640 and the inner ring gear 610 are engaged, and the outer transmission gear 650 and the outer ring gear 620 are engaged, when the inner transmission gear 640 and the outer transmission gear 650 rotate, the inner ring gear 610 and the outer ring gear 620 are driven to rotate, and the rotation directions of the adjacent two outer ring gears 620 are opposite; the inner ring gear 610 and the outer ring gear 620 drive the push plate 310 to rotate, and when the push plate 310 rotates, the abrasive in the corresponding treatment chamber is pushed to rotate.

[0082] When the rotating motor 730 rotates, the driving wheel 740 is driven to rotate by the belt and the pulley, and then the plurality of driven wheels 750 are driven to rotate, so that the plurality of clamping discs 500 rotate relative to the synchronous disc 720, and the clamping disc 500 drives the workpiece 800 to rotate in the mounting hole 210. The present application can simultaneously process a plurality of workpieces 800, and has high processing efficiency. The inner rotating cylinder 300 and the outer rotating cylinder 400 are driven to rotate by the first driving mechanism 600, and then the abrasive in the processing cavity is driven to rotate, and the workpiece 800 is driven to rotate in the mounting hole 210 by the second driving mechanism 700, so that the abrasive and the workpiece 800 form a complex relative motion, eliminate the processing dead angle, and ensure the uniformity and consistency of the surface treatment effect of the workpiece 800 with special-shaped metal structure.

[0083] During processing, the abrasive in the adjacent two processing cavities rotates in opposite directions, and the abrasive forms a complex and uniform composite force field around the workpiece 800, further improving the efficiency and consistency of the surface treatment, and also helping to offset the vibration during equipment operation and the bending deformation of the slender workpiece 800 due to the action of the abrasive force.

[0084] In addition, since the partition ring 200 is wave-shaped in the circumferential direction, and the axis of the mounting hole 210 is located at the wave peak or the wave valley of the partition ring 200. Under the pushing of the push plate 310, the trajectory of the abrasive rotating in the processing cavity can be divided into circumferential rotation and vertical movement. When the push plate 310 moves from the wave valley position to the wave peak position of the partition ring 200, the push plate 310 moves upward, the abrasive moves upward relative to the workpiece 800, and the abrasive processes the lower surface of the outward protruding position of the workpiece 800; when the push plate 310 moves from the wave peak position to the wave valley position of the partition ring 200, the push plate 310 moves downward, the abrasive moves downward relative to the workpiece 800, and the abrasive processes the upper surface of the outward protruding position of the workpiece 800, further realizing more uniform and complete processing of the workpiece 800.

[0085] In the process of polishing, the rotating direction of the outer rotating cylinder 400 is the same as the rotating direction of the workpiece 800 in the mounting hole 210, the rotating speed of the abrasive relative to the outer workpiece 800 pushed by the push plate 310 on the outer rotating cylinder 400 is equal to the difference between the rotating speed of the abrasive and the rotating speed of the workpiece 800, and the rotating speed of the abrasive relative to the inner workpiece 800 pushed by the push plate 310 on the inner rotating cylinder 300 is equal to the sum of the rotating speed of the abrasive and the rotating speed of the workpiece 800. The present application solves the problem that the workpiece 800 is not uniformly processed due to the too large relative rotating speed difference between the workpiece 800 and the abrasive, and the problem that the workpiece 800 is damaged due to the vibration of the workpiece 800 caused by the different speeds of the abrasive at different positions when the workpiece 800 rotates in the mounting hole 210, by differentially rotating the outer rotating cylinder 400 and the inner rotating cylinder 300 and making the rotating speed of the outer rotating cylinder 400 greater than the rotating speed of the inner rotating cylinder 300, so that the rotating speed of the abrasive relative to the workpiece 800 is equal in the radial direction of the separation ring 200.

[0086] After the air pump 203 is started, the gas is injected into the air duct 202, and the gas in the air duct 202 is blown to the processing cavity through the air hole 201, so that the abrasive is prevented from depositing on the upper surface of the separation ring 200. Since the upper end of the air hole 201 is inclined to the axis of the separation ring 200, the airflow exerts an inward and upward force on the abrasive, thereby solving the problem of accumulation of the abrasive outside the separation ring 200 under the action of the centrifugal force, ensuring the uniformity and flowability of the abrasive distribution, and thereby maintaining the continuous and stable surface treatment effect. And ensure that the passivation degree of the abrasive tends to be consistent in the radial direction of the separation ring 200, thereby improving the utilization rate of the abrasive.

[0087] After the polishing is completed, the driving wheel 740 and the driving motor 660 are closed, and the discharge port 110 is opened, and the abrasive is discharged from the rack 100.

[0088] The present application also provides a surface treatment process for a special-shaped metal structure. The surface treatment process for a special-shaped metal structure is performed on the workpiece 800 of the special-shaped metal structure by using the surface treatment equipment for a special-shaped metal structure provided by the present application, and includes the following steps:

[0089] S1, the workpiece 800 is installed on the clamping disc 500 by moving the clamping disc 500 upwardly driven by the second driving mechanism 700;

[0090] S2, the workpiece 800 is inserted into the mounting hole 210 by moving the clamping disc 500 downwardly driven by the second driving mechanism 700;

[0091] S3, the discharge port 110 is closed, the abrasive is injected into the uppermost processing cavity, the abrasive falls from the mounting hole 210 to the lower processing cavity, and the abrasive is filled in all the processing cavities;

[0092] S4, the first drive mechanism 600 is started, and the inner rotating drum 300 and the outer rotating drum 400 are driven to rotate; the inner rotating drum 300 and the outer rotating drum 400 rotate in the same direction, and the inner rotating drum 300 and the outer rotating drum 400 drive the push plate 310 to rotate, and then drive the abrasive in the processing cavity to rotate;

[0093] S5, the second drive mechanism 700 is started to drive the clamping disc 500 to rotate;

[0094] S6, after polishing, the first drive mechanism 600 and the second drive mechanism 700 are closed, and the discharge port 110 is opened, and the abrasive is discharged from the rack 100.

[0095] The workpiece 800 of the special-shaped metal structure treated by the surface treatment process of the special-shaped metal structure has more thorough surface treatment, no treatment dead angle, better uniformity of surface treatment, and higher treatment efficiency.

[0096] The above only describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A surface treatment device for irregularly shaped metal structures, characterized in that, include: The frame has a discharge port at the bottom; Multiple partition rings are provided; the multiple partition rings are distributed at intervals along the vertical direction, and the partition rings are fixedly connected to the frame; multiple through mounting holes are provided on the partition rings; the multiple mounting holes are evenly distributed along the circumference of the partition rings; Multiple inner rotating cylinders are provided, and the multiple inner rotating cylinders are respectively located above the multiple partition rings. The inner rotating cylinders are vertically arranged, and the upper and lower ends of the inner rotating cylinder located between two partition rings abut against the upper and lower partition rings. Multiple outer rotating cylinders are provided, each located above a plurality of partition rings and coaxially disposed outside the inner rotating cylinder; the outer rotating cylinders are rotatably mounted on the frame; the outer rotating cylinders, the inner rotating cylinders, and the partition rings define a processing cavity, which is filled with abrasive; multiple push plates are connected to the outer wall of the inner rotating cylinder and the inner wall of the outer rotating cylinder, and the multiple push plates are evenly distributed circumferentially; Multiple clamping discs are evenly distributed along the circumference of the inner rotating cylinder. The clamping discs are coaxially arranged with the mounting holes and are mounted on the frame in a way that allows them to move up and down and rotate around their own axis. The clamping discs are used to clamp workpieces. The first driving mechanism is used to drive the inner rotating cylinder and the outer rotating cylinder to rotate. The second drive mechanism is used to drive the clamping disk to rotate and move vertically.

2. The surface treatment equipment for irregularly shaped metal structures according to claim 1, characterized in that, The separator ring is wavy in the circumferential direction, and the push plate is movably mounted on the inner rotating cylinder and the outer rotating cylinder, with the lower end of the push plate in contact with the upper surface of the separator ring.

3. The surface treatment equipment for irregularly shaped metal structures according to claim 2, characterized in that, The axis of the mounting hole is located at the crest or trough of the separator ring.

4. The surface treatment equipment for irregularly shaped metal structures according to claim 2, characterized in that, The first drive mechanism causes the two adjacent outer rotating cylinders to rotate in opposite directions, and causes the inner rotating cylinder and the outer rotating cylinder, which are at the same height, to rotate in the same direction.

5. The surface treatment equipment for irregularly shaped metal structures according to claim 4, characterized in that, The outer rotating cylinder and the inner rotating cylinder rotate at different speeds to make the rotational speed of the abrasive relative to the workpiece equal in the radial direction of the separating ring.

6. The surface treatment equipment for irregularly shaped metal structures according to claim 5, characterized in that, The first driving mechanism includes an internal gear ring, an external gear ring, a transmission shaft, an internal transmission gear, an external transmission gear, and a drive motor; four drive motors are provided, and each drive motor is fixedly connected to the frame; four transmission shafts are provided, each synchronously rotatably connected to the output end of one of the four drive motors; the transmission shafts are rotatably mounted on the frame, with two transmission shafts located inside the inner rotating cylinder and the other two transmission shafts located outside the outer rotating cylinder; the internal gear ring is fixedly connected to the inner wall of the inner rotating cylinder; the external gear ring is fixedly connected to... The outer wall of the outer rotating cylinder is provided with multiple inner and outer drive gears; the multiple inner drive gears are distributed at intervals along the vertical direction, and adjacent two inner drive gears are synchronously rotatably mounted on two drive shafts located inside the inner rotating cylinder; the multiple outer drive gears are distributed at intervals along the vertical direction, and adjacent two outer drive gears are synchronously rotatably mounted on two drive shafts located outside the outer rotating cylinder; the inner drive gears mesh with the inner gear ring, and the outer drive gears mesh with the outer gear ring.

7. The surface treatment equipment for irregularly shaped metal structures according to claim 1, characterized in that, The partition ring has multiple vertically penetrating air holes, which are inclined and extend upwards toward the axis of the partition ring. Multiple air channels are provided below the partition ring, which connect to the multiple air holes and are connected to an air pump.

8. The surface treatment equipment for irregularly shaped metal structures according to claim 1, characterized in that, The second drive mechanism includes a longitudinal component and a circumferential component; the longitudinal component includes a hydraulic cylinder and a timing disc, the output end of the hydraulic cylinder being connected to the timing disc; a plurality of clamping discs are evenly distributed along the circumference of the timing disc, and the clamping discs are rotatably mounted on the timing disc.

9. The surface treatment equipment for irregularly shaped metal structures according to claim 8, characterized in that, The circumferential assembly includes a rotary motor, a drive wheel, and multiple driven wheels; the multiple driven wheels are synchronously connected to multiple clamping discs; the drive wheel is rotatably mounted on the synchronization disc and meshes with the multiple driven wheels; the output end of the rotary motor is connected to the drive wheel.

10. A surface treatment process for an irregularly shaped metal structure, characterized in that, Surface treatment using the surface treatment equipment for irregularly shaped metal structures according to any one of claims 1-9 includes the following steps: S1, the clamping plate is moved upward by the second driving mechanism to install the workpiece on the clamping plate; S2, the clamping plate is moved downward by the second driving mechanism, causing the workpiece to be inserted into the mounting hole; S3, close the discharge port and inject abrasive into the processing chamber until all the processing chambers are filled with abrasive; S4, start the first drive mechanism to drive the inner rotating cylinder and the outer rotating cylinder to rotate; S5, the second drive mechanism drives the plurality of clamping discs to rotate; S6. After grinding is completed, the first drive mechanism and the second drive mechanism are closed, and the discharge port is opened, so that the abrasive is discharged from the frame.

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