A gear case housing cover pre-cleaning device

Abstract

The utility model discloses a gear case shell cover pre -cleaning device, including pre -cleaning mechanism, draining mechanism and the workpiece transfer mechanism of being equipped between both, the pre -cleaning mechanism includes the cleaning tank, the lifting of being located in the cleaning tank's backing plate to the backing plate is fixed for the positioning structure of the positioning gear case shell seat mouth, the draining mechanism includes the mesh belt conveyor of setting in the cleaning tank one side, and the workpiece transfer mechanism includes the jaw assembly movable along the mesh belt conveyor width direction, the jaw assembly sets up the mesh belt conveyor top, and the workpiece after positioning structure positioning is located in the clamping range of jaw assembly. The utility model can carry out pre -cleaning to the cutting fluid of remaining on the gear case shell, significantly reduce its surface remaining cutting fluid, thereby greatly reduce the pollution degree of cutting fluid to the cleaning agent in the subsequent cleaning machine, guarantee the cleaning efficiency and the cleaning quality of subsequent workpiece in the cleaning agent of subsequent cleaning machine.

Description

Technical Field

[0001] This utility model relates to the field of gearbox manufacturing technology, specifically to a gearbox housing cover pre-cleaning device. Background Technology

[0002] The gearbox housing cover is an important component of the gearbox, typically located on the upper part or side of the gearbox body. It is bolted to the gearbox base, together forming a closed gear transmission space. Existing gearbox housing covers have a first arc surface 27 and a second arc surface 29 at their lower opening (e.g., Figure 6 (As shown) to provide precise installation positioning and operating space.

[0003] In existing gearbox housing manufacturing processes, turning is an indispensable key process to ensure that the housing meets the design requirements for dimensional accuracy and surface finish. The turning process uses a lathe to precisely cut the outer diameter, inner hole, end face, and steps of the blank, removing excess material and forming the final contour. After the turning process, to meet the stringent cleanliness requirements of subsequent assembly or painting processes, the gearbox housing workpiece usually needs to be thoroughly cleaned in a specialized cleaning machine. The cleaning agent circulating in the cleaning machine dissolves and removes oil, particles, and other impurities from the workpiece surface.

[0004] However, in the turning process, a large amount of cutting fluid is required for cooling to reduce cutting temperature, minimize tool wear, improve surface finish, and facilitate chip removal. After turning, the workpiece surface inevitably retains metal chips and a high concentration of residual cutting fluid. In existing processes, these workpieces with high concentrations of residual cutting fluid are directly fed into the cleaning machine. The undiluted cutting fluid residue on the workpiece surface dissolves into the working fluid of the cleaning machine. Due to the high concentration of this residue, it severely dilutes the effective components of the cleaning agent and causes contamination, resulting in a significant decrease in the cleaning efficiency of the cleaning agent and ultimately failing to meet the cleaning standards for subsequent workpieces. Utility Model Content

[0005] The purpose of this utility model is to provide a gearbox housing cover pre-cleaning device, which can pre-clean the residual cutting fluid on the gearbox housing, significantly reduce the residual cutting fluid on its surface, thereby greatly reducing the degree of contamination of the cleaning agent in the subsequent cleaning machine by the cutting fluid, and ensuring the cleaning efficiency of the cleaning agent in the subsequent cleaning machine and the cleaning quality of the subsequent workpiece.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is: a gearbox housing cover pre-cleaning device, comprising a pre-cleaning mechanism, a draining mechanism, and a workpiece transfer mechanism disposed between the two; The pre-cleaning mechanism includes a cleaning tank, a pallet that can be lifted and lowered in the cleaning tank, and a positioning structure fixed on the pallet for positioning the gearbox housing seat opening. The draining mechanism includes a mesh belt conveyor disposed on one side of the washing tank; The workpiece transfer mechanism includes a gripper assembly that can move along the width direction of the mesh belt conveyor. The gripper assembly is located above the mesh belt conveyor, and the workpiece, after being positioned by the positioning structure, is within the gripping range of the gripper assembly.

[0007] A further improvement of this utility model is that the tray is a hollow plate, and upright plates are symmetrically arranged on both sides of the tray. A lifting connector is provided at the upper end of the upright plate, and lifting drive components are provided on both sides of the cleaning tank. The lifting drive components are connected to the corresponding lifting connectors to drive the tray to lift.

[0008] A further improvement of this utility model is that the workpiece transfer mechanism further includes a bracket, a horizontal slide rail, a sliding seat, a translation drive component, and a lifting component. The horizontal slide rail is horizontally arranged above the cleaning tank via the bracket. The sliding seat is slidably connected to the horizontal slide rail and driven by the translation drive component. The sliding seat is provided with a lifting component, and the gripper assembly is arranged on the lifting end of the lifting component.

[0009] A further improvement of this utility model is that the draining mechanism further includes a drying box, which is located above the conveying section of the mesh belt conveyor. The drying box has liftable doors at both ends along the direction of workpiece movement, and the drying box is equipped with air nozzles connected to the air supply system.

[0010] A further improvement of this utility model is that the drying box includes two parallel side panels and a top panel connected above the two side panels. The door is slidably connected to the side panels via vertical guide rails, and a linear actuator is connected to the door to drive its lifting and lowering. A crossbeam is provided above the two vertical guide rails. A actuator connector is provided on the outer side wall of the door and the outer side wall of the crossbeam. The fixed end of the linear actuator is connected to one of the actuator connectors, and its telescopic end is connected to the other actuator connector.

[0011] A further improvement of this utility model is that two vertical guide rails located on the feeding side are equipped with proximity sensors for detecting the passage of workpieces, and the proximity sensors are electrically connected to the linear drive, the mesh belt conveyor, and the air supply system.

[0012] A further improvement of this utility model is that a limiting crossbar located below the crossbeam is fixedly provided on the outer side of the two vertical guide rails, and a limiting block is provided on the outer side wall at the top of the box door. The limiting block cooperates with the limiting crossbar to limit the downward position of the box door.

[0013] A further improvement of this utility model is that a liquid collection tank is provided below the mesh belt conveyor, the bottom of the liquid collection tank includes two symmetrically arranged guide inclined plates and a bottom plate disposed between the two guide inclined plates, and the drying box is disposed above the liquid collection tank and located above the area of ​​the guide inclined plates.

[0014] A further improvement of this utility model is that the positioning structure includes a first positioning block that mates with a first arc surface of the gearbox housing seat opening, and a second positioning block that mates with a second arc surface of the gearbox housing seat opening.

[0015] The beneficial effects of this utility model are as follows: This invention enables the pre-cleaning of residual cutting fluid on the gearbox housing by setting a pre-cleaning mechanism. The water in the cleaning tank dilutes the cutting fluid on the workpiece, significantly reducing the residual cutting fluid on its surface. This greatly reduces the degree of contamination of the cleaning agent in the subsequent cleaning machine by the cutting fluid, ensuring the cleaning efficiency of the cleaning agent in the subsequent cleaning machine and the cleaning quality of the subsequent workpiece.

[0016] The pre-cleaning mechanism of this utility model ensures that the gearbox housing is fixed in the cleaning tank through a positioning structure to avoid displacement. The draining mechanism uses a mesh belt conveyor to allow the workpiece to drain naturally during movement. The workpiece transfer mechanism realizes the transfer between the cleaning and draining stations through a laterally movable gripper, effectively improving cleaning efficiency and realizing automatic transfer.

[0017] This utility model features a perforated support plate to facilitate water flow within the cleaning tank, and the combination of symmetrical upright plates and lifting drive components enables stable lifting, ensuring that the workpiece is completely immersed in or removed from the cleaning solution.

[0018] This invention achieves active drying by incorporating a drying chamber, compensating for insufficient natural drainage. The liftable chamber door automatically opens and closes when workpieces enter or exit, and high-pressure gas is introduced through nozzles to accelerate moisture evaporation, shorten drying time, and improve overall efficiency. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the pre-cleaning mechanism of this utility model.

[0021] Figure 3 This is a schematic diagram of the workpiece transfer mechanism of this utility model.

[0022] Figure 4 This is a schematic diagram of the drying box structure of this utility model.

[0023] Figure 5This is a schematic diagram of the liquid collection tank structure of this utility model.

[0024] Figure 6 This is a schematic diagram of a gearbox housing structure in the prior art.

[0025] In the diagram, 1-pre-cleaning mechanism, 2-draining mechanism, 3-workpiece transfer mechanism, 4-cleaning tank, 5-pallet, 6-mesh belt conveyor, 7-gripper assembly, 8-vertical plate, 9-lifting connector, 10-lifting drive, 11-bracket, 12-horizontal slide rail, 13-sliding seat, 14-lifting component, 15-box door, 16-side box panel, 17-vertical guide rail, 18-linear driver, 19-crossbeam, 20-driver connector, 21-proximity sensor, 22-limiting crossbar, 23-limiting block, 24-liquid collection tank, 25-guide inclined plate, 26-bottom plate, 27-first arc surface, 28-first positioning block, 29-second arc surface, 30-second positioning block, 31-gearbox housing cover. Detailed Implementation

[0026] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments.

[0027] Example 1: Combination Figures 1-6 It can be seen that a gearbox housing cover pre-cleaning device includes a pre-cleaning mechanism 1, a draining mechanism 2, and a workpiece transfer mechanism 3 disposed between the two. The pre-cleaning mechanism 1 includes a cleaning tank 4, a support plate 5 that can be lifted and lowered in the cleaning tank 4, and a positioning structure fixed on the support plate 5 for positioning the gearbox housing seat opening. The draining mechanism 2 includes a mesh belt conveyor 6 installed on one side of the washing tank 4; The workpiece transfer mechanism 3 includes a gripper assembly 7 that can move along the width direction of the mesh belt conveyor 6. The gripper assembly 7 is located above the mesh belt conveyor 6, and the workpiece after being positioned by the positioning structure is within the gripping range of the gripper assembly 7.

[0028] The pallet 5 is a perforated plate, with symmetrical upright plates 8 on both sides. A lifting connector 9 is located at the top of each upright plate 8. Lifting drive components 10 (such as cylinders or electric push rods) are located on both sides of the cleaning tank 4. The lifting drive components 10 are connected to the corresponding lifting connectors 9 to drive the pallet 5 to rise and fall. The cleaning tank 4 contains a cleaning fluid (usually water, which needs to be replaced after a certain period of use) for diluting the cutting fluid. The stroke of the lifting drive components 10 must ensure that the workpiece is completely submerged in the cleaning fluid and completely raised above the surface of the cleaning fluid. Preferably, the lifting connector 9 is a horizontal plate, with one end connected to the upright plate 8 and the other end connected to the lifting drive component 10.

[0029] The workpiece transfer mechanism 3 also includes a bracket 11, a horizontal slide rail 12, a sliding seat 13, a translation drive (such as a motor-driven synchronous belt or lead screw mechanism, not shown in detail in the figure), and a lifting component 14 (such as a cylinder). The horizontal slide rail 12 is horizontally mounted above the cleaning tank 4 via the bracket 11. The sliding seat 13 is slidably connected to the horizontal slide rail 12 and driven by the translation drive. The lifting component 14 is mounted on the sliding seat 13. The gripper assembly 7 (which can be a pneumatic gripper or an electric gripper) is mounted on the lifting end of the lifting component 14. Preferably, a vertical mounting plate is fixedly connected to the lifting end of the lifting component 14, and the gripper assembly is mounted on the vertical mounting plate.

[0030] Preferably, to improve production efficiency, the gripper assembly 7 includes two grippers symmetrically arranged on the vertical mounting plate. Correspondingly, the positioning structure on the pallet 5 is also provided in two sets, each set including a first positioning block 28 and a second positioning block 30, for simultaneously positioning the two gearbox housing covers 31. The spacing between these two sets of positioning structures matches the spacing between the two grippers on the gripper assembly 7. This allows the workpiece transfer mechanism 3 to simultaneously grab and transport two pre-cleaned workpieces in one transfer action. The width of the mesh belt conveyor 6 is designed to accommodate two workpieces side-by-side, and its conveyor belt has sufficient load-bearing width and structural strength. Similarly, the inner cavity width of the drying box (i.e., the internal space dimension along the width direction of the mesh belt conveyor 6) is also adapted accordingly to ensure that the two workpieces moving side-by-side can be simultaneously covered and effectively dried.

[0031] The dewatering mechanism 2 also includes a drying box, which is located above the conveying section of the mesh belt conveyor 6. The drying box has liftable doors 15 at both ends along the direction of workpiece movement. The drying box is equipped with air nozzles (not shown in the figure) connected to the air supply system (such as the factory compressed air pipeline network or an independent air compressor). Preferably, the air nozzles are multi-hole array nozzles, evenly distributed on the top plate and side walls of the drying box.

[0032] The drying box includes two parallel side panels 16 and a top panel connected above the two side panels 16. The door 15 is slidably connected to the side panels 16 via vertical guide rails 17, and a linear actuator 18 (such as a cylinder or electric actuator) is connected to the door 15 to drive its lifting and lowering. A crossbeam 19 is provided above the two vertical guide rails 17. A actuator connector 20 is provided on the outer side wall of the door 15 and the outer side wall of the crossbeam 19. The fixed end of the linear actuator 18 is connected to one of the actuator connectors 20, and its telescopic end is connected to the other actuator connector 20.

[0033] Two vertical guide rails 17 located on the feeding side are equipped with proximity sensors 21 for detecting the passage of workpieces. The proximity sensors 21 are electrically connected to the linear actuator 18, the mesh belt conveyor 6, and the air supply system. The proximity sensors 21, linear actuator 18, mesh belt conveyor 6, and air supply system (the solenoid valve controlling the opening and closing of the air nozzles) are all connected to a controller. The controller is a conventional industrial controller (such as a PLC or microcontroller system) used to achieve the coordinated control of the aforementioned actuators (lifting drive 10, translation drive, lifting component 14, gripper assembly 7, mesh belt conveyor 6, linear actuator 18, and solenoid valve of the air supply system). The improvement of this invention lies in the structural design of the device, rather than in the controller itself or its control program.

[0034] When the workpiece moves to the feed end of the drying chamber, the proximity sensor 21 on the vertical guide rail 17 at the feed end detects the workpiece passing signal and transmits the signal to the controller. The controller then controls the linear actuator 18 that drives the discharge end door 15 of the drying chamber to actuate, lowering the discharge end door 15. After a short delay (ensuring the discharge door is closed or about to close), the controller then controls the linear actuator 18 that drives the feed end door 15 of the drying chamber to actuate, lowering the feed end door 15. The controller then stops the mesh belt conveyor, and the solenoid valve of the air supply system opens, introducing high-pressure gas (such as compressed air) into the air nozzles inside the drying chamber to dry the workpiece.

[0035] Two vertical guide rails 17 are fixedly provided with limiting crossbars 22 located below the crossbeam 19 on the outer side. A limiting block 23 is provided on the outer side wall at the top of the box door 15. The limiting block 23 cooperates with the limiting crossbar 22 to limit the downward position of the box door 15.

[0036] Below the mesh belt conveyor 6 is a liquid collection tank 24. The bottom of the liquid collection tank 24 includes two symmetrically arranged guide plates 25 and a bottom plate 26 between the two guide plates 25. The drying box is located above the liquid collection tank 24 and above the area of ​​the guide plates 25.

[0037] The positioning structure includes a first positioning block 28 that mates with the first arc surface 27 of the gearbox housing seat opening, and a second positioning block 30 that mates with the second arc surface 29 of the gearbox housing seat opening. The two positioning blocks respectively match the first arc surface 27 and the second arc surface 29 of the gearbox housing, achieving multi-point positioning, ensuring that the workpiece does not shift or tip over during rinsing, and restricting the placement direction of the workpiece to avoid incorrect placement affecting the operation of the gripper assembly 7 and the movement path of the workpiece on the draining mechanism 2.

[0038] The working principle of the gearbox housing cover pre-cleaning device provided by this utility model is as follows: During operation, the workpiece is placed on the tray 5 of the cleaning tank 4. The workpiece is positioned by the positioning structure (first positioning block 28 and second positioning block 30) engaging with the arc surface of the gearbox housing seat. The lifting drive 10 drives the tray 5 to descend, immersing the workpiece in the cleaning solution for pre-cleaning (the lifting and lowering can be repeated several times to improve the cleaning effect). Subsequently, the tray rises, and the gripper assembly 7 of the workpiece transfer mechanism 3 moves along the horizontal slide rail 12 to above the cleaning tank. The lifting component 14 descends to grip the workpiece, which is then moved laterally to above the mesh belt conveyor 6 for release. As the workpiece moves with the mesh belt conveyor 6, it first drains naturally. When the proximity sensor 21 detects that the workpiece has entered the drying chamber range, the linear actuator 18 lowers the chamber door 15, and high-pressure gas is forced into the air nozzle for drying. The chamber door 15 then automatically resets, and the dripping liquid is collected in the collection tank 24 via the guide plate 25, completing the pre-cleaning operation.

[0039] In the description of this utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A pre-cleaning device for a gearbox housing cover, characterized in that: It includes a pre-cleaning mechanism (1), a draining mechanism (2), and a workpiece transfer mechanism (3) located between the two. The pre-cleaning mechanism (1) includes a cleaning tank (4), a pallet (5) that can be lifted and lowered in the cleaning tank (4), and a positioning structure fixed on the pallet (5) for positioning the gearbox housing seat. The draining mechanism (2) includes a mesh belt conveyor (6) disposed on one side of the cleaning tank (4); The workpiece transfer mechanism (3) includes a gripper assembly (7) that can move along the width direction of the mesh belt conveyor (6). The gripper assembly (7) is located above the mesh belt conveyor (6), and the workpiece after being positioned by the positioning structure is within the gripping range of the gripper assembly (7).

2. The gearbox housing cover pre-cleaning device according to claim 1, characterized in that: The tray (5) is a hollow plate. The tray (5) has upright plates (8) symmetrically arranged on both sides. The upper end of the upright plate (8) is provided with a lifting connector (9). The cleaning tank (4) has lifting drive components (10) on both sides. The lifting drive component (10) is connected to the corresponding lifting connector (9) to drive the tray (5) to rise and fall.

3. The gearbox housing cover pre-cleaning device according to claim 1, characterized in that: The workpiece transfer mechanism (3) further includes a bracket (11), a horizontal slide rail (12), a sliding seat (13), a translation drive component, and a lifting component (14). The horizontal slide rail (12) is horizontally arranged above the cleaning tank (4) via the bracket (11). The sliding seat (13) is slidably connected to the horizontal slide rail (12) and driven by the translation drive component. The sliding seat (13) is provided with a lifting component (14), and the gripper assembly (7) is arranged on the lifting end of the lifting component (14).

4. The gearbox housing cover pre-cleaning device according to claim 1, characterized in that: The draining mechanism (2) also includes a drying box, which is located above the conveying section of the mesh belt conveyor (6). The drying box has liftable doors (15) at both ends along the direction of workpiece movement, and the drying box is equipped with air nozzles connected to the air supply system.

5. A gearbox housing cover pre-cleaning device according to claim 4, characterized in that: The drying box includes two parallel side panels (16) and a top panel connected above the two side panels (16). The door (15) is slidably connected to the side panels (16) via vertical guide rails (17), and a linear actuator (18) for driving its lifting and lowering is connected to the door (15). A crossbeam (19) is provided above the two vertical guide rails (17). A actuator connector (20) is provided on the outer side wall of the door (15) and the outer side wall of the crossbeam (19). The fixed end of the linear actuator (18) is connected to one of the actuator connectors (20), and its telescopic end is connected to the other actuator connector (20).

6. A gearbox housing cover pre-cleaning device according to claim 5, characterized in that: Two vertical guide rails (17) located on the feeding side are equipped with proximity sensors (21) for detecting the passage of workpieces. The proximity sensors (21) are electrically connected to the linear drive (18), the mesh belt conveyor (6), and the air supply system.

7. A gearbox housing cover pre-cleaning device according to claim 5, characterized in that: A limiting crossbar (22) located below the crossbeam (19) is fixedly provided on the outer side of the two vertical guide rails (17). A limiting block (23) is provided on the outer side wall at the top of the box door (15). The limiting block (23) cooperates with the limiting crossbar (22) to limit the downward position of the box door (15).

8. A gearbox housing cover pre-cleaning device according to claim 4, characterized in that: The bottom of the mesh belt conveyor (6) is provided with a liquid collection tank (24). The bottom of the liquid collection tank (24) includes two symmetrically arranged guide plates (25) and a bottom plate (26) between the two guide plates (25). The drying box is located above the liquid collection tank (24) and above the area of ​​the guide plates (25).

9. A gearbox housing cover pre-cleaning device according to claim 1, characterized in that: The positioning structure includes a first positioning block (28) that mates with the first arc surface (27) of the gearbox housing seat opening, and a second positioning block (30) that mates with the second arc surface (29) of the gearbox housing seat opening.

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