A multi-station metal surface pretreatment device

Abstract

This utility model discloses a multi-station metal surface pretreatment device, belonging to the field of metal parts processing technology. It includes a support frame and polishing cylinders. The bottom surface of the support frame is fixedly connected to rectangularly distributed support feet, and the polishing cylinders are equidistantly distributed on the top surface of the support frame. It also includes a support rotation assembly, an adjustment assembly, and gears. By driving one of the rotating shafts with a motor, which in turn drives the meshing gears to rotate synchronously, the device ensures that all polishing cylinders rotate at the same speed when multiple polishing cylinders are operating simultaneously. This solves the problems of high energy consumption and inconsistent polishing accuracy caused by slippage in traditional multi-motor drives and belt / chain drives. Furthermore, by driving the first hydraulic rod to disengage the insert block from the gear slot, a polishing cylinder can be stopped independently when loading or unloading is required, without affecting the operation of other polishing cylinders. This solves the problem of low production efficiency caused by the need to stop the machine for loading and unloading in traditional equipment.

Description

Technical Field

[0001] This utility model relates to the field of metal parts processing technology, specifically to a multi-station metal surface pretreatment device. Background Technology

[0002] Automotive parts are the various units that make up a car and the various accessories that serve the car. They are the foundation of the automotive industry. They are diverse in type and function, and directly affect the performance, reliability, safety and manufacturing cost of the car. During the processing of parts, electroplating is required. Electroplating metal refers to the process of using the principle of electrolysis to plate a layer of other metals or alloys onto the surface of certain metals. This process can prevent metal oxidation and improve the performance of the metal in various aspects. However, since the surface of the metal is rough after electroplating, it is not convenient to use. Therefore, the surface of the electroplated metal parts needs to be polished to facilitate later use. In order to improve the polishing efficiency of electroplated metal, a special electroplating metal surface treatment device is needed.

[0003] For example, the electroplating metal surface treatment device disclosed in Chinese Patent No. CN218801041U solves the problem of uneven grinding when grinding columnar electroplated metal using grinding wheels, which results in inconsistent plating thickness across the surface and severely affects the later use of the electroplated metal. Furthermore, the friction between the electroplated metal and the grinding machine during grinding can easily cause displacement of the electroplated metal, thus affecting the grinding effect. However, in the processing of automotive parts, a tumbler polishing machine is still used to polish the parts before electroplating. Existing tumbler polishing machines still have many unavoidable technical limitations in practical applications of pre-treatment before electroplating of automotive parts: the multi-station design of traditional tumbler polishing machines often relies on independent drives or simple linkage structures, such as using multiple independent motors... While driving different rollers can enable simultaneous processing of multiple batches of parts, it significantly increases the overall energy consumption of the equipment. Furthermore, the speed difference between motors can easily lead to inconsistent polishing precision of parts within the same batch. For automotive parts, such precision deviations can directly affect the uniform adhesion of subsequent electroplating layers, especially in critical areas such as the threaded surfaces of bolts and the teeth of gears. If the difference in polishing roughness exceeds 0.5μm, it may cause uneven plating thickness or localized peeling. On the other hand, multi-station rollers using belt or chain linkages reduce the number of motors, but slippage and slack are prone to occur during transmission, causing fluctuations in roller speed. For precision parts that require strict control of polishing time (such as valve components in fuel injection systems), such fluctuations will cause dispersion in surface treatment effects, increasing the defect rate. Moreover, when loading or unloading parts from one of the rollers, the machine needs to be stopped for processing.

[0004] Based on this, the present invention designs a multi-station metal surface pretreatment device to solve the above problems. Utility Model Content

[0005] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a multi-station metal surface pretreatment device.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-station metal surface pretreatment device includes a support frame and polishing cylinders. The bottom surface of the support frame is fixedly connected with rectangularly distributed support feet, and the polishing cylinders are equidistantly distributed on the top surface of the support frame. The device also includes a support rotation assembly, an adjustment assembly, and gears.

[0008] The supporting rotation assembly includes a support frame hinged to the outer surface of one end of the polishing cylinder. The end of the polishing cylinder away from the support frame is connected to a turntable via an adjustment assembly. A driving component is fixedly connected to the side of the turntable away from the polishing cylinder. When using the driving component, any gear can be disengaged individually, allowing the polishing cylinder to be loaded and unloaded independently.

[0009] The surface of the gear is detachably connected to the drive component, each gear meshes with the others, and the end of the gear away from the drive component and the end of the support frame away from the polishing cylinder are fixedly connected to a rotating shaft. The rotating shaft is rotatably connected to the surface of the support frame through a bearing. A motor is fixedly connected to the side wall of the support frame, and the output end of the motor is fixedly connected to one of the rotating shafts.

[0010] Furthermore, the adjustment assembly includes two hinge seats, which are fixedly connected to the opposite surfaces of the turntable and the polishing cylinder, respectively. The two hinge seats are arranged at an angle, one above the other. A second hydraulic rod is hinged between the two hinge seats, and the telescopic end of the second hydraulic rod is located on the hinge seat on the surface of the polishing cylinder.

[0011] Furthermore, the normally telescopic end of the second hydraulic rod is in a retracted state, and a sealing cap is threaded onto the end of the polishing cylinder near the support frame.

[0012] Furthermore, the driving component includes a first hydraulic rod, the housing of which is fixedly connected to the center of the turntable surface, and the telescopic end of the first hydraulic rod is detachably connected to a gear.

[0013] Furthermore, the telescopic end of the first hydraulic rod is fixedly connected to a plug, and a slot is provided on the side of the gear away from the rotating shaft, and the plug engages with the slot.

[0014] Furthermore, the slot opening cross-section has the same cross-sectional shape as the connection between the first hydraulic rod telescopic end and the insert block, which is T-shaped.

[0015] Furthermore, the support frame is U-shaped, and the pivot is fixed at the center of the horizontal surface of the support frame.

[0016] Furthermore, the distance between the side of the support frame away from the rotating shaft and the sealing cover is 60-80mm.

[0017] Compared with the prior art, the advantages of this utility model are as follows: by driving one of the rotating shafts with a motor and driving the meshing gears to rotate synchronously, the rotation speed of each polishing cylinder can be ensured to be consistent when multiple polishing cylinders are working at the same time. This solves the problem of inconsistent polishing accuracy caused by high energy consumption and easy slippage of belt and chain drives in traditional multi-motor drives. In addition, by driving the first hydraulic rod to disengage the insert block from the gear slot, when it is necessary to load or unload a certain polishing cylinder, the polishing cylinder can be stopped to stop rotating independently without affecting the operation of other polishing cylinders. This solves the problem of low production efficiency caused by the need to stop the machine for loading and unloading in traditional equipment. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a three-dimensional diagram of the overall structure;

[0020] Figure 2 This is a three-dimensional structural diagram of the sealing cap;

[0021] Figure 3 This is a three-dimensional view of a partial cross-sectional structure of the support frame;

[0022] Figure 4 for Figure 3 Enlarged 3D view of the structure at point A in the middle;

[0023] Figure 5 This is a three-dimensional view of the assembly structure of the polishing cylinder, support frame, and turntable.

[0024] The labels in the diagram represent:

[0025] 1. Support frame; 2. Support foot; 3. Polishing cylinder; 31. Sealing cover; 4. Support frame; 6. Rotating shaft; 7. Bearing; 8. Turntable; 9. First hydraulic rod; 10. Insert block; 11. Gear; 12. Slot; 13. Motor; 14. Hinge seat; 15. Second hydraulic rod. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] In some embodiments, please refer to the accompanying drawings. Figures 1-5 A multi-station metal surface pretreatment device includes a support frame 1 and a polishing cylinder 3. The bottom surface of the support frame 1 is fixedly connected to rectangularly distributed support feet 2. The polishing cylinders 3 are equidistantly distributed on the top surface of the support frame 1. The device also includes a support rotation assembly, an adjustment assembly, and gears 11. The support rotation assembly includes a support frame 4 hinged to the outer surface of one end of the polishing cylinder 3. The end of the polishing cylinder 3 away from the support frame 4 is connected to a turntable 8 via the adjustment assembly. A drive component is fixedly connected to the side of the turntable 8 away from the polishing cylinder 3. When the drive component is braked, any one of the gears 11 can be disengaged, allowing the polishing cylinder 3 to be loaded and unloaded independently. The surface of the gears 11 is detachably connected to the drive component. Each gear 11 meshes with the others. A rotating shaft 6 is fixedly connected to both the end of the gear 11 away from the drive component and the end of the support frame 4 away from the polishing cylinder 3. The rotating shaft 6 is rotatably connected to the surface of the support frame 1 via bearings 7. A motor 13 is fixedly connected to the side wall of the support frame 1. The output end of the motor 13 is fixedly connected to one of the rotating shafts 6. When the motor 13 is driven, each gear 11 meshes with the others, driving the polishing cylinder 3 to perform part polishing.

[0028] In some embodiments, such as Figures 1-5As shown, in a preferred embodiment of this utility model, the adjustment assembly includes two hinge seats 14, which are respectively fixedly connected to the opposite surfaces of the turntable 8 and the polishing cylinder 3. The two hinge seats 14 are arranged with one above the other at an angle. A second hydraulic rod 15 is hinged between the two hinge seats 14, and the telescopic end of the second hydraulic rod 15 is located on the hinge seat 14 on the surface of the polishing cylinder 3. When the second hydraulic rod 15 is driven, one end of the polishing cylinder 3 tilts downward to push out the part, and the telescopic end of the second hydraulic rod 15 is in a retracted state. A sealing cap 31 is threadedly connected to the end of the polishing cylinder 3 near the support frame 4, wherein the second hydraulic rod 15 is threadedly connected to the support frame 4. The telescopic end of the pressure rod 15 is normally retracted at the top of the end face of the polishing cylinder 3. When the second hydraulic rod 15 extends its telescopic end, the opening of the polishing cylinder 3 can be opened downwards to open the sealing cover 31 and pour out the polished parts. The driving component includes the first hydraulic rod 9. The housing of the first hydraulic rod 9 is fixedly connected to the center of the surface of the turntable 8. The telescopic end of the first hydraulic rod 9 is detachably connected to the gear 11. The telescopic end of the first hydraulic rod 9 is fixedly connected to the insert block 10. A slot 12 is opened on the side of the gear 11 away from the rotating shaft 6. The insert block 10 is engaged with the slot 12. When any polishing cylinder 3 needs to be loaded or unloaded, the corresponding first hydraulic rod is... The retraction of lever 9 causes the insert 10 to be pulled out from the inner wall of slot 12. At this point, even if gear 11 rotates, it cannot drive the corresponding polishing cylinder 3 to rotate. The cross-sectional shape of the slot 12 is T-shaped, consistent with the cross-sectional shape of the connection between the extension end of the first hydraulic lever 9 and the insert 10, thus maintaining stability in the insertion state. The support frame 4 is U-shaped, and the rotating shaft 6 is fixed at the center of the horizontal surface of the support frame 4. This allows the rotating shaft 6 and the polishing cylinder 3 to be aligned when both ends of the support frame 4 are hinged to the sides of the polishing cylinder 3, improving the rotational stability of the support. The distance between the side of the support frame 4 away from the rotating shaft 6 and the sealing cover 31 is... The 60-80mm spacing fully considers the needs of manual loading and unloading operations. The 60-80mm space is sufficient for operators to easily extend their arms to place parts and polishing particles. At the same time, it will not cause the polishing cylinder 3 to shake during rotation due to excessive spacing. This avoids interference between the sealing cover 31 and the support frame 4 when the polishing cylinder 3 rotates, and provides sufficient and comfortable space for loading and unloading operations, ensuring the convenience and safety of operation. When the polishing cylinder 3 is tilted for unloading through the second hydraulic rod 15, the sealing cover 31 can also easily detach from the port of the polishing cylinder 3, ensuring a smooth unloading process.

[0029] In the above technical solution, motor 13 is a Y112M-4 three-phase asynchronous motor with a power of 4kW, a rated speed of 1440r / min, and a torque of 26.5N・m. It can stably drive 3-6 polishing cylinders to operate synchronously through gear meshing, suitable for batch polishing loads of small and medium-sized automotive parts, such as bolts, washers, and small shafts. Its energy consumption and transmission efficiency match the requirements of gear transmission. Polishing cylinder 3 is a GT-450×700 type wear-resistant polishing cylinder with a diameter of 450mm and a length of 700mm. It is made of QT500-7 ductile iron with a wear-resistant ceramic coating on the inner wall and can accommodate automotive parts with a diameter of φ5-50mm, such as chassis pins and oil pipe connectors. Turntable 8 is a ZP-220 type steel turntable with a diameter of 220mm and a thickness of 25mm. It is made of 45# steel with a chrome-plated surface for rust prevention. The first hydraulic rod 9 is a MOB-32×60 type mini hydraulic rod. The pressure rod has a cylinder diameter of 32mm, a stroke of 60mm, and a rated thrust of 8kN. It can quickly drive the insertion block 10 and slot 12 to engage and disengage with a response time of ≤0.5s. The gear 11 is a 40Cr tempered gear, model G3-55, module 3, number of teeth 55, tooth tip circle diameter 171mm, tooth width 30mm, and tooth surface hardness HRC50-55. It can withstand the load impact of multi-station synchronous transmission, and the meshing accuracy reaches level 6 of GB / T10095.2-2008, ensuring that the speed synchronization error is ≤2r / min. The second hydraulic rod 15 is a HOB-40×120 type engineering hydraulic rod with a cylinder diameter of 40mm, a stroke of 120mm, and a rated thrust of 15kN. It can drive the polishing cylinder 3 to tilt to a 30-45° unloading angle, which is suitable for tilting loads of 50-100kg parts. The extension speed is adjustable from 50-100mm / s to avoid deformation of parts due to impact during unloading.

[0030] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A multi-station metal surface pretreatment device, comprising a support frame (1) and polishing cylinders (3), wherein rectangularly distributed support feet (2) are fixedly connected to the bottom surface of the support frame (1), and the polishing cylinders (3) are equidistantly distributed on the top surface of the support frame (1), characterized in that: It also includes a support rotation assembly, an adjustment assembly, and a gear (11); The support rotation assembly includes a support frame (4) hinged to the outer surface of one end of the polishing cylinder (3). The end of the polishing cylinder (3) away from the support frame (4) is connected to a turntable (8) through an adjustment assembly. A drive component is fixedly connected to the side of the turntable (8) away from the polishing cylinder (3). When using the drive component, any gear (11) can be disengaged individually, so that the polishing cylinder (3) can be loaded and unloaded independently. The surface of the gear (11) is detachably connected to the drive component. Each gear (11) meshes with the others. The end of the gear (11) away from the drive component and the end of the support frame (4) away from the polishing cylinder (3) are both fixedly connected to a rotating shaft (6). The rotating shaft (6) is rotatably connected to the surface of the support frame (1) through a bearing (7). A motor (13) is fixedly connected to the side wall of the support frame (1). The output end of the motor (13) is fixedly connected to one of the rotating shafts (6).

2. The multi-station metal surface pretreatment device according to claim 1, characterized in that, The adjustment assembly includes two hinge seats (14), which are fixedly connected to the opposite surfaces of the turntable (8) and the polishing cylinder (3), respectively. The two hinge seats (14) are inclined at one above the other. A second hydraulic rod (15) is hinged between the two hinge seats (14), and the telescopic end of the second hydraulic rod (15) is located on the hinge seat (14) on the surface of the polishing cylinder (3).

3. The multi-station metal surface pretreatment device according to claim 2, characterized in that, The second hydraulic rod (15) is normally in a retracted state at its telescopic end, and the polishing cylinder (3) is threaded with a sealing cap (31) at one end near the support frame (4).

4. The multi-station metal surface pretreatment device according to claim 3, characterized in that, The driving component includes a first hydraulic rod (9), the housing of which is fixedly connected to the center of the surface of the turntable (8), and the telescopic end of the first hydraulic rod (9) is detachably connected to the gear (11).

5. The multi-station metal surface pretreatment device according to claim 4, characterized in that, The telescopic end of the first hydraulic rod (9) is fixedly connected to a plug (10), and a slot (12) is provided on the side of the gear (11) away from the rotating shaft (6), and the plug (10) is engaged with the slot (12).

6. The multi-station metal surface pretreatment device according to claim 5, characterized in that, The slot (12) has a T-shaped cross-section that is consistent with the cross-sectional shape of the connection between the telescopic end of the first hydraulic rod (9) and the plug (10).

7. The multi-station metal surface pretreatment device according to claim 1, characterized in that, The support frame (4) is U-shaped, and the rotating shaft (6) is fixed at the center of the horizontal surface of the support frame (4).

8. The multi-station metal surface pretreatment device according to claim 1, characterized in that, The distance between the side of the support frame (4) away from the rotating shaft (6) and the sealing cover (31) is 60-80mm.

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