Pump cover bolt tightening device

Abstract

The application relates to a pump cover bolt tightening device which comprises a box body, a conveying track, a jacking assembly, a tightening gun, a positioning tray and a negative pressure suction disc. A table plate is horizontally arranged in the box body. The conveying track is fixedly installed on the table plate and penetrates through the box body. The positioning tray is slidably arranged on the conveying track. The jacking assembly is installed on the table plate and located below the conveying track. Lifting frames are oppositely arranged on the two sides of the conveying track. The negative pressure suction disc is slidably arranged on the lifting frames through a cross beam. A through hole is arranged on the negative pressure suction disc. The negative pressure suction disc is suitable for transplanting a pump cover to the top of an oil pump on the positioning tray so that the pump cover is coaxial with the threaded hole of the oil pump. A three-axis moving device is arranged on the table plate. The tightening gun is arranged on the three-axis moving device. A torque controller is arranged on the tightening gun. The torque controller is suitable for controlling the output torque of the tightening gun.

Description

Technical Field

[0001] This application relates to the field of oil pump assembly technology, and in particular to a pump cover bolt tightening device. Background Technology

[0002] In the field of oil pump manufacturing, the assembly of the oil pump cover is an indispensable and important part of the entire oil pump product assembly process. At present, the assembly of the oil pump cover mainly relies on traditional manual operation. Specifically, workers need to use a hand-held tightening gun to tighten the screws on the pump cover. However, there are differences in the skill level and force control among different workers. This difference not only reduces the pass rate of oil pump cover assembly, but also increases rework costs and results in low production efficiency. Summary of the Invention

[0003] In view of this, this application proposes a pump cover bolt tightening device, including: a housing, a conveying track, a lifting assembly, a tightening gun, a positioning tray, and a negative pressure suction cup;

[0004] The box is equipped with a horizontal platform; the conveyor rail is fixedly installed on the platform and runs through the box, and the positioning tray is slidably set on the conveyor rail;

[0005] The lifting assembly is mounted on the platform and located below the conveyor rail, and is suitable for lifting the positioning tray on the conveyor rail to the pump cover picking station;

[0006] Lifting frames are provided on both sides of the conveying track. The negative pressure suction cup is slidably mounted on the lifting frame via a crossbeam. The negative pressure suction cup has through holes, and the through holes correspond one-to-one with the bolt holes of the pump cover. The negative pressure suction cup is suitable for transferring the pump cover to the top of the oil pump on the positioning tray so that the pump cover and the threaded hole of the oil pump are coaxial.

[0007] The platform is equipped with a three-axis moving device, and the tightening gun is set on the three-axis moving device. The three-axis moving device is suitable for driving the tightening gun to move above the negative pressure suction cup so that the head of the tightening gun passes through the through hole to tighten the connecting bolts between the pump cover and the oil pump.

[0008] The tightening gun is equipped with a torque controller, which is used to control the output torque of the tightening gun.

[0009] In one possible implementation, the lifting assembly includes: a first fixed plate, a first support plate, a first telescopic cylinder, and a limiting plate;

[0010] A first opening is provided on the platform; a first fixing plate is disposed on the platform and located at the first opening;

[0011] The first fixed plate is provided with a first lifting column at each of its four corners, and the first lifting column is provided through the first fixed plate; the first support plate is provided on the side of the first fixed plate facing the conveyor rail, and the first support plate is fixedly connected to the first lifting column; the limiting plate is provided on the side of the first fixed plate away from the first support plate, and the limiting plate is fixedly connected to the first lifting column.

[0012] The first telescopic cylinder is disposed on the first fixed plate and located between the first fixed plate and the limiting plate, and the telescopic end of the first telescopic cylinder passes through the first fixed plate and is connected to the first support plate.

[0013] In one possible implementation, a limiting part is provided on the limiting plate; the limiting part is coaxially arranged with the first telescopic cylinder.

[0014] In one possible implementation, the lifting frame includes a first lifting frame and a second lifting frame; a second Y-axis drive module is horizontally provided on the side of the first lifting frame away from the second lifting frame; one end of the crossbeam is connected to the second Y-axis drive module, and the other end of the crossbeam is slidably connected to the second lifting frame.

[0015] In one possible implementation, both the first lifting frame and the second lifting frame include: a second fixed plate, two second support plates, and a second telescopic cylinder; a second opening is provided on the platform, and the second fixed plate is disposed on the platform and located at the second opening; the two second support plates are disposed opposite to each other on the second fixed plate; a second lifting column is provided at both ends of the second fixed plate, and the second lifting column passes through the second fixed plate and is respectively connected to the two second lifting columns; the second telescopic cylinder is disposed on the second fixed plate, and the telescopic end of the second telescopic cylinder is connected to the second support plate.

[0016] In one possible implementation, the three-axis moving device includes: a mounting frame, an X-axis drive module, a first Y-axis drive module, and a Z-axis drive module;

[0017] The mounting bracket is installed on the platform; the first Y-axis drive module is horizontally arranged on one side of the frame, and the driving direction of the first Y-axis drive module is perpendicular to the length direction of the conveyor track; the X-axis drive module is horizontally arranged on the mounting bracket, and the driving direction of the X-axis drive module is perpendicular to the driving direction of the first Y-axis drive module. One end of the X-axis drive module is connected to the first Y-axis drive module, and the X-axis drive module is slidably connected to the mounting bracket away from the first Y-axis drive module. The Z-axis drive module is connected to the X-axis drive module through a connector, and the driving direction of the Z-axis drive module is perpendicular to the driving direction of the X-axis drive module; the tightening gun is installed on the Z-axis drive module.

[0018] In one possible implementation, a placement box is also included, which is fixedly connected to the crossbeam and located on the side adjacent to the negative pressure suction cup.

[0019] In one possible implementation, an air source treatment device is also included; the air source treatment device is installed at the bottom of the housing, and the output end of the air source treatment device is connected to the input end of the negative pressure suction cup.

[0020] In one possible implementation, cabinet doors are provided on the side walls of the enclosure for opening or closing the enclosure.

[0021] In one possible implementation, an operation panel and a display are also included; the operation panel is located on the outer wall of the cabinet and above the cabinet door, and the display is arranged adjacent to the operation panel.

[0022] Beneficial effects of this application

[0023] This application achieves fully automated assembly of the pump cover from pickup and transfer to bolt tightening through the coordinated operation of a conveyor track, lifting assembly, negative pressure suction cup, three-axis moving device, and tightening gun. This reduces the assembly time of the pump cover bolts, improves production efficiency, and meets the needs of mass production. The cooperation between the conveyor track and the positioning tray enables continuous transport of the pump cover and oil pump. The lifting assembly can quickly lift the positioning tray to the pump cover pickup station. After the negative pressure suction cup transfers the pump cover to the top of the oil pump, the three-axis moving device drives the tightening gun to lock the bolts of the pump cover. The entire process is streamlined. The tight connection reduces human intervention and avoids assembly errors caused by worker fatigue or lack of operational skills, thus improving the stability and reliability of assembly quality. Simultaneously, by installing a torque controller on the tightening gun, the output torque of the tightening gun can be precisely controlled, ensuring that the tightening torque of each pump cover and oil pump connecting bolt is the same. This avoids assembly quality problems caused by torque differences, improves the pass rate of oil pump cover assembly, reduces rework due to assembly defects, and lowers rework costs. The pump cover tightening device of this application has a compact and reasonable layout with high space utilization.

[0024] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0025] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0026] Figure 1 This diagram shows the main structure of the pump cover bolt tightening device of this application;

[0027] Figure 2 An internal view of the pump cover bolt tightening device of this application is shown;

[0028] Figure 3 This diagram shows the main structure of the lifting assembly of this application;

[0029] Figure 4 This diagram shows the main structural structure of the mounting bracket of this application;

[0030] Figure 5 The main structural diagram of the three-axis moving device of this application is shown.

[0031] Cabinet body—100; Tabletop—110; Cabinet door—120; Control panel—130; Display—140; Conveyor rail—200; Positioning tray—210; Lifting assembly—300; First fixing plate—310; First support plate—320; First telescopic cylinder—330; Limiting plate—340; Limiting part—341; First lifting column—350; First bushing—360; Tightening gun—500; Three-axis moving device—400; First mounting bracket— 411; Second mounting bracket—412; X-axis drive module—420; First Y-axis drive module—430; Z-axis drive module—440; Negative pressure suction cup—500; Lifting frame—600; Second fixing plate—610; Second support plate—620; Second telescopic cylinder—630; Second lifting column—640; Second bushing—650; Crossbeam—710; Second Y-axis drive module—720; Placement box—730; Air source treatment device—800. Detailed Implementation

[0032] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0033] It should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", and "circumferential" 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 or 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.

[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0035] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0036] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0037] This application proposes a pump cover bolt tightening device, such as... Figures 1 to 5 As shown, the system includes: a housing 100, a conveying track 200, a lifting assembly, a tightening gun 500, a positioning tray 210, and a negative pressure suction cup 500; a platform 110 is horizontally arranged inside the housing 100; the conveying track 200 is fixedly installed on the platform 110 and extends through the housing 100, and the positioning tray 210 is slidably arranged on the conveying track 200; the lifting assembly is installed on the platform 110 and located below the conveying track 200, and is used to lift the positioning tray 210 on the conveying track 200 to the pump cover picking position; lifting frames 600 are provided on opposite sides of the conveying track 200, and the negative pressure suction cup 500 is slidably arranged via a crossbeam 710. On the lifting frame 600, the negative pressure suction cup 500 has through holes, and the through holes correspond one-to-one with the bolt holes of the pump cover; the negative pressure suction cup 500 is used to transfer the pump cover to the top of the oil pump on the tray so that the pump cover and the threaded hole of the oil pump are coaxial; the platform 110 is equipped with a three-axis moving device 400, and the tightening gun 500 is set on the three-axis moving device 400. The three-axis moving device 400 is used to drive the tightening gun 500 to move above the negative pressure suction cup 500 so that the gun head of the tightening gun 500 passes through the through hole to lock the connecting bolts of the pump cover and the oil pump; wherein, the tightening gun 500 is equipped with a torque controller, which is used to control the output torque of the tightening gun 500.

[0038] It should be noted that the housing 100 has a rectangular frame structure, including a first frame and a second frame. The second frame is installed on top of the first frame, and the platform is horizontally set at the connection between the first and second frames. The platform 110 provides a stable mounting platform for various components. The conveyor rail 200 consists of two parallel guide rails. The conveyor rail 200 is used to transport the positioning pallet 210 to the next process, reducing the labor intensity and time of manual handling and improving production efficiency. The positioning pallet 210 has sliders on both sides of its bottom. The sliders match the guide rails of the conveyor rail 200. The positioning pallet 210 is slidably connected to the conveyor rail 200 through the sliders. The positioning pallet 210 provides a stable placement platform for the workpiece to be processed, ensuring that the oil pump and pump cover remain stable during conveying, lifting, transfer, and tightening, thereby ensuring the assembly accuracy of the pump cover and oil pump. The lifting assembly can lift the positioning pallet 210 on the conveyor rail 200 to the pump cover picking station, so that the workpiece to be processed on the positioning pallet 210 reaches a suitable height for pump cover transfer and bolt tightening.

[0039] The negative pressure suction cup 500 uses vacuum to adsorb the pump cover. Through the vertical movement of the lifting frame 600 and the horizontal sliding engagement of the crossbeam 710, the negative pressure suction cup 500 transfers the pump cover to the top of the oil pump. The through holes on the negative pressure suction cup 500 correspond one-to-one with the bolt holes of the pump cover, ensuring that the threaded holes of the pump cover and the oil pump are coaxial, thus guaranteeing the correct assembly relationship between the pump cover and the oil pump. The three-axis moving device 400 is used to drive the tightening gun 500 to move precisely in three-dimensional space, ensuring that the head of the tightening gun 500 can accurately align with the position of each bolt. The tightening gun 500 extends through the through-hole into the bolt hole to tighten the connecting bolts between the pump cover and the oil pump. Workers can flexibly adjust the movement path and position of the tightening gun 500 according to different assembly needs and bolt distribution, enabling the device to meet the assembly requirements of various oil pump models. The torque controller can precisely control the output torque of the tightening gun 500. By setting an appropriate torque value, assembly quality problems caused by torque differences are avoided, ensuring that bolt tightening meets design requirements, reducing the defect rate due to unqualified torque, and lowering production costs.

[0040] This application achieves fully automated assembly of the pump cover from picking and transferring to bolt tightening through the coordinated operation of the conveyor track 200, lifting assembly, negative pressure suction cup 500, three-axis moving device 400, and tightening gun 500. This reduces the assembly time of the pump cover bolts, improves production efficiency, and can meet the needs of mass production. The cooperation between the conveyor track 200 and the positioning tray 210 enables continuous conveying of the pump cover and oil pump. The lifting assembly can quickly lift the positioning tray 210 to the pump cover picking station. After the negative pressure suction cup 500 transfers the pump cover to the top of the oil pump, the three-axis moving device 400 drives the tightening gun 500 to tighten the pump cover. The bolts are tightened, and the entire process is tightly connected, reducing human intervention and avoiding assembly errors caused by worker fatigue or lack of operational skills, thus improving the stability and reliability of assembly quality. At the same time, by setting a torque controller on the tightening gun 500, the torque output of the tightening gun 500 can be precisely controlled, ensuring that the tightening torque of each pump cover and oil pump connecting bolt is the same, avoiding assembly quality problems caused by torque differences, improving the pass rate of oil pump cover assembly, reducing rework caused by assembly defects, and lowering rework costs. The pump cover tightening device of this application has a compact and reasonable layout and high space utilization.

[0041] In one possible implementation, the torque controller uses a controller with the existing technology model M4x12-TMH-SNV-NM-P2-H100-L00-B15-D11.

[0042] In one possible implementation, such as Figure 2 , Figure 3 As shown, the lifting assembly includes: a first fixed plate 310, a first support plate 320, a first telescopic cylinder 330, and a limiting plate 340; a first opening is provided on the platform 110; the first fixed plate 310 is disposed on the platform 110 and located at the first opening; each of the four corners of the first fixed plate 310 is provided with a first lifting column 350, and the first lifting column 350 is disposed through the first fixed plate 310; the first support plate 320 is disposed on the side of the first fixed plate 310 facing the conveying track 200, and the first support plate 320 is fixedly connected to the first lifting column 350; the limiting plate 340 is disposed on the side of the first fixed plate 310 away from the first support plate 320, and the limiting plate is fixedly connected to the first lifting column 350; the first telescopic cylinder 330 is disposed on the first fixed plate 310 and located between the first fixed plate 310 and the limiting plate 340, and the telescopic end of the first telescopic cylinder 330 is disposed through the first fixed plate 310 and connected to the first support plate 320.

[0043] It should be noted that the first fixing plate 310 is designed to provide a stable installation platform for the lifting assembly, ensuring the structural stability of the lifting assembly. The design of having first lifting columns 350 at each of the four corners of the first fixing plate 310 ensures that the four first lifting columns 350 vertically penetrate the first fixing plate 310 to form a symmetrical support structure. Each of the four corners of the first fixing plate 310 is equipped with a first bushing 360, which penetrates the first fixing plate 310. The first lifting columns 350 are movably disposed within the first bushings 360, which provide rigid guidance for the first lifting columns 350, allowing them to move up and down along their own axis within the bushings 360 to support the lifting movement of the first support plate 320. The first support plate 320 provides stable support for the positioning tray 210. During the lifting process, the first support plate 320 directly supports the positioning tray 210. The pallet 210 contacts and bears the weight of the positioning pallet 210 and the workpieces such as the oil pump cover it carries, and lifts them upward to the pump cover picking station; the limiting plate 340 is used to limit the rising height of the first lifting column 350 to prevent the first support plate 320 from rising excessively during the lifting process and avoid damage to the equipment; the first telescopic cylinder 330 is used to provide power to the lifting assembly, thereby driving the lifting and lowering movement of the first support plate 320. The first telescopic cylinder 330 is located at the center of the first fixed plate 310. The telescopic end of the first telescopic cylinder 330 passes through the first fixed plate 310 and connects to the center of the first support plate 320. The telescopic movement of the first telescopic motor drives the lifting and lowering of the first support plate 320, thereby driving the first lifting column 350 to move up and down along its own axis, thereby driving the limiting plate 340 to move toward or away from the first fixed plate 310.

[0044] In one possible implementation, such as Figure 3 As shown, the limiting plate 340 is provided with a limiting part 341; the limiting part 341 is coaxially arranged with the first telescopic cylinder 330. It should be noted that the limiting part 341 is used to limit the rising position of the first support plate 320, ensuring that the first support plate 320 can accurately reach the predetermined position each time. The limiting part 341 is coaxially arranged with the first telescopic cylinder 330, ensuring that the movement direction of the limiting part 341 and the telescopic end of the cylinder are completely consistent. When the first telescopic cylinder 330 drives the first support plate 320 to rise, the first lifting column 350 drives the limiting plate 340 to rise synchronously. When the limiting part 341 on the limiting plate 340 contacts the first telescopic cylinder 330, a stop signal is triggered, causing the first telescopic cylinder 330 to stop driving. At this time, the positioning tray 210 on the first support plate 320 is in the pump cover picking position. The design of the limiting part 341 ensures that the positioning tray 210 can accurately reach the predetermined position each time it rises, providing a precise reference for subsequent pump cover transfer and bolt tightening operations.

[0045] In one possible implementation, such as Figure 2 , Figure 4 As shown, the lifting frame 600 includes a first lifting frame and a second lifting frame; a second Y-axis drive module 720 is horizontally provided on the side of the first lifting frame away from the second lifting frame; one end of the crossbeam 710 is connected to the second Y-axis drive module 720, and the other end of the crossbeam 710 is slidably connected to the second lifting frame.

[0046] It should be noted that the first and second lifting frames are used to drive the crossbeam 710 to move up and down, thereby driving the negative pressure suction cup 500 to move up and down. The first and second lifting frames together constitute the support structure of the negative pressure suction cup 500. The top of both the first and second lifting frames is provided with a first slide rail, which extends along the width direction of the lifting frame 600. Correspondingly, the crossbeam 710 is provided with a first slider, and the slider is located on the side of the crossbeam 710 facing the lifting frame 600. The two ends of the crossbeam 710 are slidably mounted on the first slide rail on the top of the lifting frame 600 via the first slider. Second Y-axis drive module The 720 is used to drive the crossbeam 710 to move horizontally along the Y-axis. The end of the crossbeam 710 near the first lifting frame 600 is provided with a connecting plate. The crossbeam 710 is connected to the second Y-axis drive module 720 through the connecting plate. The design that one end of the crossbeam 710 is connected to the second Y-axis drive module 720 and the other end is slidably connected to the second lifting frame 600 allows the crossbeam 710 to move horizontally along the Y-axis under the drive of the second Y-axis drive module 720, while maintaining a stable connection with the lifting frame 600. This enables the lifting and horizontal movement of the negative pressure suction cup 500, ensuring that the negative pressure suction cup 500 can accurately reach the predetermined position.

[0047] Furthermore, the main body of the crossbeam 710 is a rectangular plate structure. The end of the crossbeam 710 near the second lifting frame 600 has an installation hole. The negative pressure suction cup 500 is installed on the side of the crossbeam 710 facing the platform 110, and the negative pressure suction cup 500 is located at the installation hole of the crossbeam 710. The installation hole of the crossbeam and the through hole of the negative pressure suction cup 500 are connected. After the tightening gun 500 passes through the installation hole and the through hole of the negative pressure suction cup 500, the bolts on the pump cover and the oil pump are tightened.

[0048] In one possible implementation, the negative pressure suction cup 500 includes a limiting plate and a negative pressure suction nozzle; the limiting plate has a limiting fixing groove that is adapted to the outer contour of the pump cover; the negative pressure suction nozzle is fixedly installed on the limiting plate, and the suction end of the negative pressure suction nozzle is located in the limiting fixing groove of the limiting plate, which is suitable for suction and fixing the pump cover located in the fixed limiting groove.

[0049] Furthermore, there are two or more negative pressure suction nozzles, which are spaced apart along the circumference of the limiting plate. The coordinated work of multiple negative pressure suction nozzles ensures that the pump cover is firmly adsorbed in the limiting and fixing groove of the limiting plate.

[0050] In one possible implementation, such as Figure 2 , Figure 4 As shown, both the first and second lifting frames include: a second fixed plate 610, two second support plates 620, and a second telescopic cylinder 630; a second opening is provided on the platform 110, and the second fixed plate 610 is disposed on the platform 110 and located at the second opening; the two second support plates 620 are disposed opposite to each other on the second fixed plate 610; a second lifting column 640 is provided at both ends of the second fixed plate 610, and the second lifting column 640 passes through the second fixed plate 610 and is respectively connected to the two second lifting columns 640; the second telescopic cylinder 630 is disposed on the second fixed plate 610, and the output shaft of the second telescopic cylinder 630 is connected to the second support plate 620.

[0051] It should be noted that the second fixing plate 610 is used to provide a stable installation foundation for the lifting frame 600, ensuring the stability of the lifting frame 600 structure; the length direction of the second lifting column 640 is perpendicular to the plane of the second fixing plate 610, and the second lifting column 640 vertically penetrates the second fixing plate 610 to form symmetrical support. A second bushing 650 is provided on the second fixing plate 610, penetrating the second fixing plate 610. The second lifting column 640 is movably disposed within the second bushing 650, which provides rigid guidance for the second lifting column 640, allowing it to move up and down along its own axis within the second bushing 650; located at the top of the lifting frame 600. The second support plate 620 is used to provide stable support for the crossbeam 710. The second telescopic cylinder 630 is installed on the second fixed plate 610, and the telescopic end of the second telescopic cylinder 630 is fixedly connected to the second support plate 620 located at the bottom of the lifting frame 600. The second telescopic lever is used to provide power to the lifting frame 600. The telescopic movement of the second telescopic motor drives the second support plate 620 located at the bottom of the lifting frame 600 to move in a direction toward or away from the second support plate 620, thereby driving the second lifting column 640 to move up and down along its own axis, thereby driving the second support plate 620 located at the top of the lifting frame 600 to rise or fall, thereby realizing the lifting movement of the crossbeam 710 located at the top of the lifting frame 600.

[0052] In one possible implementation, such as Figure 2 , Figure 5As shown, the three-axis moving device 400 includes: a mounting frame, an X-axis drive module 420, a first Y-axis drive module 430, and a Z-axis drive module 440; the mounting frame is mounted on the platform 110, the first Y-axis drive module 430 is horizontally disposed on one side of the mounting frame, and the driving direction of the first Y-axis drive module 430 is perpendicular to the length direction of the conveying track 200; the X-axis drive module 420 is horizontally disposed on the mounting frame, and the driving direction of the X-axis drive module 420 is perpendicular to the length direction of the first Y-axis drive module 440. The driving direction of the moving module 430 is arranged vertically. One end of the X-axis driving module 420 is connected to the first Y-axis driving module 430. The X-axis driving module 420 is slidably connected to the mounting bracket away from the first Y-axis driving module 430. The first Z-axis driving module 440 is connected to the X-axis driving module 420 through the first connector, and the driving direction of the first Z-axis driving module 440 is perpendicular to the driving direction of the X-axis driving module 420. The tightening gun 500 is installed on the Z-axis driving module 440.

[0053] It should be noted here that the mounting frame includes a first mounting frame 411 and a second mounting frame 412. The first mounting frame 411 and the second mounting frame 412 are arranged opposite each other and span the conveyor rail 200. The top of the first mounting frame 411 and the second mounting frame 412 are provided with a second slide rail, and the second slide rail extends along the width direction of the lifting frame 600. Correspondingly, the X-axis drive module 420 is provided with a second slider. The two ends of the X-axis drive module 420 are slidably mounted on the second slide rails of the first mounting frame 411 and the second mounting frame 412 through the second slider. The first Y-axis drive module 430 is horizontally arranged on the side of the first mounting frame 411 away from the second mounting frame 412, and the X-axis drive module 420 is connected to the first Y-axis drive module 430 through a second connector. The first Z-axis drive module 440 is connected to the X-axis drive module 420 through a first connector. The tightening gun 500 is mounted on the Z-axis drive module 440, and the head of the tightening gun 500 is set towards the lifting assembly.

[0054] Specifically, the Z-axis drive module 440 is used to drive the tightening gun 500 to move along the Z-axis direction, the X-axis drive module 420 is used to drive the Z-axis drive module 440 to move along the X-axis direction, thereby driving the tightening gun 500 to move along the X-axis, and the first Y-axis drive module 430 is used to drive the X-axis drive module 420 to move along the Y-axis direction, thereby driving the tightening gun 500 on the Z-axis drive module 440 to move along the Y-axis. The X-axis drive module 420, the first Y-axis drive module 430 and the Z-axis drive module 440 work together to realize the three-axis movement of the tightening gun 500 on the mounting bracket, ensuring that the head of the tightening gun 500 can be accurately aligned with the connecting bolts of the pump cover and the oil pump.

[0055] In one possible implementation, a placement box 730 is also included. The placement box 730 is fixedly connected to the crossbeam 710 and is located on the side adjacent to the negative pressure suction cup 500. It should be noted that the top of the placement box has an opening through which bolts are pre-placed. The placement box 730 can store a certain number of bolts, ensuring sufficient bolt supply during continuous assembly and avoiding production interruptions due to frequent bolt replenishment. The placement box 730 is located adjacent to the working area of ​​the negative pressure suction cup 500 and the tightening gun 500, making bolt supply more efficient. After the negative pressure suction cup 500 transfers the pump cover to the top of the oil pump on the positioning tray 210, the tightening gun 500 can directly obtain bolts from the placement box 730 for tightening, reducing intermediate steps in bolt supply and improving assembly efficiency.

[0056] In one possible implementation, such as Figure 2 As shown, it also includes an air source treatment device 800; the air source treatment device 800 is installed at the bottom of the housing 100, and the output end of the air source treatment device 800 is connected to the input end of the negative pressure suction cup 500; the air source treatment device 800 is suitable for providing stable air pressure to the negative pressure suction cup 500. The stable air pressure supply ensures that the negative pressure suction cup 500 can maintain sufficient and stable suction force throughout the entire working process, ensuring the safety and reliability of pump cover transplantation.

[0057] Furthermore, the gas source processing device 800 adopts the existing technology model AC30B-02G-SV1-A gas source processor.

[0058] In one possible implementation, such as Figure 1 As shown, a cabinet door 120 for opening or closing the cabinet 100 is provided on the side wall of the cabinet 100; operators can easily enter the cabinet 100 to install, debug and maintain the equipment by opening the cabinet door 120.

[0059] In one possible implementation, an operation panel 130 and a display 140 are also included. The operation panel 130 is disposed on the outer wall of the housing 100 and above the cabinet door 120. The operation panel 130 is electrically connected to the three-axis drive device, the conveying rail 200, the lifting assembly, the tightening gun 500, the negative pressure suction cup 500, the torque controller, the first telescopic cylinder 330, the second telescopic cylinder 630, the second Y-axis drive module 720, and the air source processing device 800. The operation panel 130 and the display 140 are arranged adjacent to each other. The display 140 is suitable for displaying the specific working status of the pump cover tightening device. The specific electrical connections and controls of the operation panel 130 and the display 140 are common knowledge well known to those skilled in the art and will not be described in detail here.

[0060] In one possible implementation, a safety switch is also included. The safety switch is located on the top of the housing 100. When the operator discovers abnormal operation of the equipment or potential safety hazards, he / she can quickly press the safety switch to immediately stop the operation of the pump cover tightening device. This emergency stop function can quickly cut off the power supply or power source of the pump cover tightening device in an emergency, preventing the pump cover tightening device from continuing to operate and causing greater danger or damage. The specific electrical connections and controls of the safety switch are common knowledge known to those skilled in the art and will not be described in detail here.

[0061] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A pump cover bolt tightening device, characterized in that, include: Box body, conveyor rail, lifting assembly, tightening gun, positioning tray, negative pressure suction cup; The box is equipped with a horizontal platform; the conveying track is fixedly installed on the platform and extends through the box; the positioning tray is slidably mounted on the conveying track. The lifting assembly is mounted on the platform and located below the conveying track, and is suitable for lifting the positioning tray on the conveying track to the pump cover picking station; The conveying track is provided with lifting frames on both sides. The negative pressure suction cup is slidably mounted on the lifting frame via a crossbeam. The negative pressure suction cup has through holes, and the through holes correspond one-to-one with the pump cover bolt holes. The negative pressure suction cup is suitable for transferring the pump cover to the top of the oil pump on the positioning tray so that the pump cover is coaxial with the threaded hole of the oil pump. The platform is equipped with a three-axis moving device, and the tightening gun is mounted on the three-axis moving device. The three-axis moving device is adapted to drive the tightening gun to move above the negative pressure suction cup so that the head of the tightening gun passes through the through hole to tighten the connecting bolts between the pump cover and the oil pump. The tightening gun is equipped with a torque controller, which is used to control the output torque of the tightening gun.

2. The pump cover bolt tightening device according to claim 1, characterized in that, The lifting assembly includes: a first fixed plate, a first support plate, a first telescopic cylinder, and a limiting plate; The platform has a first opening; the first fixing plate is disposed on the platform and located at the first opening. The first fixed plate is provided with a first lifting column at each of its four corners, and the first lifting column is provided through the first fixed plate; the first support plate is provided on the side of the first fixed plate facing the conveying track, and the first support plate is fixedly connected to the first lifting column; the limiting plate is provided on the side of the first fixed plate away from the first support plate, and the limiting plate is fixedly connected to the first lifting column. The first telescopic cylinder is mounted on the first fixed plate and located between the first fixed plate and the limiting plate, and the telescopic end of the first telescopic cylinder passes through the first fixed plate and is connected to the first support plate.

3. The pump cover bolt tightening device according to claim 2, characterized in that, The limiting plate is provided with a limiting part; The limiting part is arranged coaxially with the first telescopic cylinder.

4. The pump cover bolt tightening device according to claim 1, characterized in that, The lifting frame includes a first lifting frame and a second lifting frame; A second Y-axis drive module is horizontally provided on the side of the first lifting frame away from the second lifting frame; One end of the crossbeam is connected to the second Y-axis drive module, and the other end of the crossbeam is slidably connected to the second lifting frame.

5. The pump cover bolt tightening device according to claim 4, characterized in that, Both the first lifting frame and the second lifting frame include: a second fixed plate, two second support plates, and a second telescopic cylinder; The platform has a second opening, and the second fixing plate is disposed on the platform and located at the second opening; Two second support plates are disposed opposite to each other on the second fixed plate; The second fixed plate has a second lifting column at both ends, and the second lifting column passes through the second fixed plate and is connected to the two second lifting columns respectively. The second telescopic cylinder is mounted on the second fixed plate, and the telescopic end of the second telescopic cylinder is connected to the second support plate.

6. The pump cover bolt tightening device according to claim 1, characterized in that, The three-axis moving device includes: a mounting frame, an X-axis drive module, a first Y-axis drive module, and a Z-axis drive module; The mounting bracket is mounted on the platform; The first Y-axis drive module is horizontally arranged on one side of the frame, and the driving direction of the first Y-axis drive module is perpendicular to the length direction of the conveying track. The X-axis drive module is horizontally mounted on the mounting bracket, and its drive direction is perpendicular to that of the first Y-axis drive module. One end of the X-axis drive module is connected to the first Y-axis drive module, and the X-axis drive module is slidably connected to the mounting bracket away from the first Y-axis drive module. The Z-axis drive module is connected to the X-axis drive module via a connector, and the driving direction of the Z-axis drive module is perpendicular to the driving direction of the X-axis drive module. The tightening gun is mounted on the Z-axis drive module.

7. The pump cover bolt tightening device according to claim 1, characterized in that, It also includes a placement box, The placement box is fixedly connected to the crossbeam, and the placement box is located on the side adjacent to the negative pressure suction cup.

8. The pump cover bolt tightening device according to claim 1, characterized in that, It also includes gas source processing equipment; The gas source processing device is installed at the bottom of the housing, and the output end of the gas source processing device is connected to the input end of the negative pressure suction cup.

9. The pump cover bolt tightening device according to claim 1, characterized in that, The side wall of the box is provided with cabinet doors for opening or closing the box.

10. The pump cover bolt tightening device according to claim 9, characterized in that, It also includes a control panel and a display; The control panel is located on the outer wall of the cabinet and above the cabinet door, and the display is located adjacent to the control panel.

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