A rear axle bushing flexible press machine robot station

Abstract

The present application relates to the technical field of automobile chassis manufacturing, in particular to a rear axle bushing flexible press fitting robot workstation, which comprises a rotating base, a press fitting tool, a press fitting gripper and a robot, the rotating base comprises a fixed chassis and a rotating layer, the rotating layer is connected with the fixed chassis through a turntable bearing one, and the upper sides of the rotating layer are fixedly connected with the press fitting tool; the press fitting tool comprises a tool base plate, a tool floating plate and a bushing press fitting seat, the tool floating plate is connected with the tool base plate through a turntable bearing two, the two sides of the tool floating plate are provided with elastic heads one, the upper sides of the two sides of the tool floating plate are connected with elastic positioning pins through a guide rail sliding block mechanism one, and the two sides of the elastic positioning pins are provided with elastic heads two. Compared with the prior art, the robot gripper press fitting gripper is adopted to work, the precision and consistency of press fitting can be ensured, the flexible design is adopted, the model is replaced in the later period, and only the connecting clamp base of the rear axle press fitting positioning workpiece needs to be replaced, so that the switching is simple and fast.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile chassis manufacturing, in particular to a rear axle bushing flexible press fitting robot workstation. BACKGROUND

[0002] The previous rear axle bushing press fitting equipment is a special machine, each equipment can only process one kind of product, when the product life cycle ends, the press fitting equipment cannot be directly used, the transformation cost is not much different from the new equipment, the economy is poor, and it can only be applied to the production of large-batch single variety of rear axle products. At present, the vehicle model updating and replacement cycle is shortened, and there are more multi-variety small-batch vehicle products. In order to meet market demand, a flexible robot rear axle bushing press fitting workstation needs to be designed. SUMMARY

[0003] The present application provides a rear axle bushing flexible press fitting robot workstation to overcome the shortcomings of the prior art.

[0004] To achieve the above purpose, a rear axle bushing flexible press fitting robot workstation is designed, which is characterized by comprising a rotating base, a press fitting tool, a press fitting gripper and a robot. The rotating base comprises a fixed base frame and a rotating layer, the rotating layer is connected with the fixed base frame through a turntable bearing one, and the upper sides of the rotating layer are fixedly connected with the press fitting tool. The press fitting tool comprises a tool base plate, a tool floating plate and a bushing press fitting seat. The tool floating plate is connected with the tool base plate through a turntable bearing two, the two sides of the tool floating plate are provided with elastic heads one, the upper sides of the two sides of the tool floating plate are connected with elastic positioning pins through a guide rail sliding block mechanism one, the two sides of the elastic positioning pins are provided with elastic heads two, the upper sides of the two sides of the tool floating plate are further provided with coarse positioning pins and elastic supporting blocks, and the two sides of the tool base plate are provided with press cylinders. The bushing press fitting seat comprises a main press head and an auxiliary press head, the main press head and the auxiliary press head are installed on a guide rail sliding block mechanism two, the two ends of a reset cylinder are connected with the lower sides of the main press head and the auxiliary press head respectively, and the guide rail sliding block mechanism two is installed on the upper side of the tool base plate. The press fitting gripper comprises a gripper main body, a connecting flange, a backstop block and an oil cylinder, the connecting flange is connected with the upper side of the gripper main body, the lower side of the gripper main body is fixedly connected with the backstop block on one side, and the other side is fixedly connected with the oil cylinder, and the robot is fixedly connected with the connecting flange.

[0005] A rotating drive cylinder is installed below the fixed base frame, the rotating drive cylinder is connected with a sliding plate, the sliding plate is connected with the fixed base frame through a guide rail sliding block mechanism three, one side of the sliding plate is fixedly installed with a rack, and a gear is fixedly installed below the rotating layer, and the gear is engaged with the rack.

[0006] The rotating layer is provided with a rotating locking cylinder, and a positioning hole two is fixedly arranged on the upper side of the fixed base frame and matched with the rotating locking cylinder for positioning.

[0007] The rotating layer is fixed with a positioning pin one, the tool base plate is provided with a positioning hole one, and the positioning pin one is positioned in cooperation with the positioning hole one.

[0008] The tool floating plate is provided with a floating plate positioning cylinder, and the tool base plate is provided with a positioning hole three above and positioned in cooperation with the floating plate positioning cylinder.

[0009] The tool base plate is provided with an elastic roller above, and the elastic roller is supported below the tool floating plate.

[0010] The both sides of the reset cylinder are provided with magnetic switches.

[0011] One side of the bushing press-fit seat is provided with a photoelectric detector.

[0012] The piston rod of the oil cylinder is fixed with a connecting block, the both sides of the connecting block are fixed with guide rods, the both sides of the oil cylinder are fixed with guide sleeves, the guide rods are matched with the guide sleeves, one side of the gripper main body is fixed with a displacement ruler, and the measuring head of the displacement ruler is connected with the connecting block.

[0013] The connecting flange is connected with the gripper main body through a guide rail sliding block mechanism four, the both sides of the guide rail sliding block mechanism four are fixed with limiting seats, and floating springs are arranged between the limiting seats and the connecting flange.

[0014] Compared with the prior art, the robot gripper press-fit gripper is adopted to work, the precision and consistency of press fitting can be ensured, the flexible design is adopted, the connecting clamp base of the rear axle press-fit positioning workpiece needs to be replaced only in the later period, simple and rapid switching is realized, new product development cost is reduced, equipment utilization efficiency is improved, and thus product economy and market competitiveness are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a schematic view of the present application.

[0016] Figure 2 It is a schematic view of the rotating base.

[0017] Figure 3 It is a bottom view of the rotating base.

[0018] Figure 4 It is a schematic view of the bushing press-fit seat.

[0019] Figure 5 It is a schematic view of the press-fit tool.

[0020] Figure 6 It is a schematic view of the press-fit gripper.

[0021] Reference Figures 1-6Wherein, 1 is a rotating base, 1-1 is a fixed chassis, 1-2 is a rotating layer, 1-3 is a turntable bearing one, 1-4 is a rotating drive cylinder, 1-5 is a sliding plate, 1-6 is a guide rail sliding block mechanism three, 1-7 is a rack, 1-8 is a gear, 1-9 is a positioning pin one, 1-10 is a rotating locking cylinder, 1-11 is a positioning hole two, 2 is a press-fitting tool, 2-1 is a tool base plate, 2-2 is a tool floating plate, 2-3 is a bushing press-fitting seat, 2-3-1 is a main pressing head, 2-3-2 is a secondary pressing head, 2-3-3 is a guide rail sliding block mechanism two, 2-3-4 is a reset cylinder, 2-3-5 is a photoelectric detector, 2-5 is a turntable bearing two, 2-6 is an elastic head one, 2-7 is a guide rail sliding block mechanism one, 2-8 is an elastic positioning pin, 2-9 is an elastic head two, 2-10 is a coarse positioning pin, 2-11 is an elastic support block, 2-12 is a pressing cylinder, 2-13 is a positioning hole one, 2-14 is a floating plate positioning cylinder, 2-15 is a positioning hole three, 2-16 is an elastic roller, 3 is a press-fitting gripper, 3-1 is a gripper main body, 3-2 is a connecting flange, 3-3 is an oil cylinder, 3-4 is a support block, 3-5 is a connecting block, 3-6 is a guide rod, 3-7 is a guide sleeve, 3-8 is a displacement ruler, 3-9 is a guide rail sliding block mechanism four, 3-10 is a floating spring, 3-11 is a limiting seat, 4 is a robot, 5 is a rear axle, 5-1 is a bushing. Embodiment

[0022] The application will be further described below with reference to the accompanying drawings.

[0023] As Figures 1-6As shown, including rotating base 1, press-fitting tool 2, press-fitting gripper 3 and robot 4, rotating base 1 includes fixed chassis 1-1 and rotating layer 1-2, rotating layer 1-2 is connected with fixed chassis 1-1 through turntable bearing 1-3, and the upper sides of rotating layer 1-2 are fixedly connected with press-fitting tool 2; press-fitting tool 2 includes tool bottom plate 2-1, tool floating plate 2-2 and bushing press-fitting seat 2-3, tool floating plate 2-2 is connected with tool bottom plate 2-1 through turntable bearing 2-5, the two sides of tool floating plate 2-2 are provided with elastic heads 2-6, the upper sides of the two sides of tool floating plate 2-2 are connected with elastic positioning pins 2-8 through guide rail sliding block mechanism 2-7, the two sides of elastic positioning pins 2-8 are provided with elastic heads 2-9, the upper sides of the two sides of tool floating plate 2-2 are further provided with coarse positioning pins 2-10 and elastic supporting blocks 2-11, and the two sides of tool bottom plate are provided with press cylinders 2-12, bushing press-fitting seat 2-3 includes main press head 2-3-1 and auxiliary press head 2-3-2, main press head 2-3-1 and auxiliary press head 2-3-2 are installed on guide rail sliding block mechanism 2-3-3, and the two ends of reset air cylinder 2-3-4 are connected with the lower sides of main press head 2-3-1 and auxiliary press head 2-3-2 respectively; press-fitting gripper 3 includes gripper main body 3-1, connecting flange 3-2, abutment block 3-4 and oil cylinder 3-3, connecting flange 3-2 is connected with the upper side of gripper main body 3-1, one side of the lower side of gripper main body 3-1 is fixedly connected with abutment block 3-4, the other side is fixedly connected with oil cylinder 3-3, and robot 4 is fixedly connected with connecting flange 3-2.Two identical press-fitting toolings 2 are installed on both sides of the rotating layer 1-2, so that the device has two stations, the press-fitting tooling 2 on one side is used to install the rear axle, and the press-fitting tooling 2 on the other side is used to press-fit the bushing, the rotating cycle production is used to improve the production efficiency; the coarse positioning pin 2-10 is used for coarse orientation to facilitate the installation of the rear axle 5 into the press-fitting tooling 2, the elastic positioning pin 2-8 is used to position the reference hole of the axle 5, and the elastic supporting block 2-11 is used to support the reference surface of the axle 5; the elastic positioning pin 2-8 and the elastic supporting block 2-11 are provided with springs, have upward elastic force, and can be elastically moved up and down, the pressing force of the pressing cylinder 2-12 is slightly smaller than the elastic force of the elastic positioning pin 2-8 and the elastic supporting block 2-11, the elastic positioning pin 2-8 and the elastic supporting block 2-11 cannot be compressed when the pressing cylinder 2-12 is pressed, and the elastic positioning pin 2-8 and the elastic supporting block 2-11 can float up and down during press fitting; the two elastic heads one 2-6 abut against the side surface of the tooling floating plate 2-2, so that the tooling floating plate 2-2 is balanced in the rotating direction and can float; the elastic head two 2-9 on both sides of the elastic positioning pin 2-8 enables the elastic positioning pin 2-8 to be elastically moved along the guide rail sliding block mechanism one 2-7, so as to facilitate the clamping of the rear axle 5, and the elastic positioning pin 2-8 can float forward and backward during press fitting; the reference hole positioned by the elastic positioning pin 2-8 is located below the position close to the bushing press-fitting position of the axle 5, one side of the elastic head two 2-9 is fixed on the tooling floating plate 2-2, and the other side of the elastic head two 2-9 is fixed on the bushing press-fitting seat 2-3-1, the contact part of the elastic positioning pin 2-8 below and the other side of the elastic head two 2-9 is arc-shaped, so as to facilitate the movement of the elastic head two 2-9 on one side when the tooling floating plate 2-2 is floating and rotating, and the elastic head two 2-9 on one side cannot be stuck; the robot 4 is used to move the press-fitting gripper 3; the oil cylinder 3-3 and the abutment block 3-4 of the press-fitting gripper 3 are matched, the main pressing head 2-3-1 and the auxiliary pressing head 2-3-2 are pushed to move along the guide rail sliding block mechanism two 2-3-3 to press-fit the bushing 5-1, and the reset cylinder 2-3-4 pushes the main pressing head 2-3-1 and the auxiliary pressing head 2-3-2 to reset after the press fitting is completed.

[0024] The rotating drive cylinder 1-4 is installed below the fixed chassis 1-1, the rotating drive cylinder 1-4 is connected with the sliding plate 1-5, the sliding plate 1-5 is connected with the fixed chassis 1-1 through the guide rail sliding block mechanism three 1-6, one side of the sliding plate 1-5 is fixedly installed with the rack 1-7, the rotating layer 1-2 is fixedly installed below with the gear 1-8, and the gear 1-8 is engaged with the rack 1-7. The rotating drive cylinder 1-4 drives the rack 1-7 to move through the sliding plate 1-5, the rack 1-7 drives the gear 1-8 to rotate through the engagement with the gear 1-8, so as to drive the rotating layer 1-2 to rotate, and the guide rail sliding block mechanism three 1-6 plays a stabilizing and guiding role on the sliding plate 1-5 and the rack 1-7.

[0025] The rotating layer 1-2 is provided with a rotating locking cylinder 1-10, and the fixed base 1-1 is provided with a positioning hole two 1-11 above the rotating locking cylinder 1-10 for positioning. The number of the positioning hole 1-11 is two, which are distributed on both sides of the fixed base 1-1, and are used for locking and positioning after the rotating layer 1-2 rotates 180°.

[0026] The rotating layer 1-2 is provided with a positioning pin one 1-9, and the tool base plate 2-1 is provided with a positioning hole one 2-13, and the positioning pin one 1-9 and the positioning hole one 2-13 are used for positioning. The rotating layer 2-2 and the tool base plate 2-1 can be positioned through one side two pins, and the tool base plate 2-1 can be quickly and accurately positioned when the pressing tool 2 is replaced, so as to ensure the positioning accuracy.

[0027] The tool floating plate 2-2 is provided with a floating plate positioning cylinder 2-14, and the tool base plate 2-1 is provided with a positioning hole three 2-15 above the floating plate positioning cylinder 2-14 for positioning. When the rotating layer 1-2 rotates, the floating plate positioning cylinder 2-14 is extended and inserted into the positioning hole three 2-15, so as to prevent the tool floating plate 2-2 from rotating; when pressing, the floating plate positioning cylinder 2-14 is retracted, and the tool floating plate 2-2 can float, so that the rear axle 5 has a certain degree of freedom.

[0028] The tool base plate 2-1 is provided with an elastic roller 2-16 above, and the elastic roller 2-16 is supported below the tool floating plate 2-2. The direction of the roller is the same as the rotating direction of the bearing two 2-5, the roller rolls below the tool floating plate 2-2 to reduce the friction and will not affect the floating effect, and the elastic roller 2-16 has an upward elastic force to balance and assist the support of the tool floating plate 2-2.

[0029] The both sides of the reset cylinder 2-3-4 are provided with a magnetic switch. The magnetic switch is used for detecting whether the reset cylinder 2-3-4 is in the pressing and resetting positions.

[0030] One side of the bushing pressing seat 2-3 is provided with a photoelectric detector 2-3-5. The photoelectric detector 2-3-5 is used for detecting whether the bushing 5-1 is on the main pressing head 2-3-1, and the equipment is not working without the bushing 5-1, so as to have the mistake prevention function.

[0031] The piston rod of the oil cylinder 3-3 is fixed with a connecting block 3-5, the both sides of the connecting block 3-5 are fixed with guide rods 3-6, the both sides of the oil cylinder 3-3 are fixed with guide sleeves 3-7, the guide rods 3-6 are matched with the guide sleeves 3-7, one side of the gripper main body 3-1 is fixed with a displacement ruler 3-8, and the measuring head of the displacement ruler 3-8 is connected with the connecting block 3-5. The guide rods 3-6 are matched with the guide sleeves 3-7, so as to prevent the direction of the piston rod of the oil cylinder 3-3 from deviating, and the displacement ruler 3-8 is used for measuring the stroke of the piston rod and detecting whether the piston rod moves to the position.

[0032] The connecting flange 3-2 is connected with the gripper main body 3-1 through a guide rail sliding block mechanism four 3-9, the two sides of the guide rail sliding block mechanism four 3-9 are fixed with limit seats 3-11, and floating springs 3-10 are arranged between the limit seats 3-11 and the connecting flange 3-2. When the oil cylinder 3-3 is pressed, the gripper main body 3-1 can be elastically floated, the position of the gripper main body 3-1 is automatically fine-tuned according to the pressure difference on the two sides of the abutment block 3-4 and the oil cylinder 3-3, and the forces on the two sides are balanced.

[0033] When the present application is used, the rear axle 5 is installed on the pressing tool 2 on one side above the rotating layer 1-2 by artificial or by robot, the bushing 5-1 is installed on the main pressing head 2-3-1, the coarse positioning pin 2-10 coarsely positions the rear axle 5, the elastic positioning pin 2-8 positions the reference hole, the elastic supporting block 2-11 supports the reference surface of the rear axle 5, the pressing cylinder 2-12 presses the rear axle 5, then the rotating layer 1-2 rotates 180°, the robot 4 drives the pressing gripper 3 to move to the pressing position through the connecting flange 3-2, the oil cylinder 3-3 pushes the main pressing head 2-3-1, the abutment block 3-4 abuts against the auxiliary pressing head 2-3-2, and the bushing 5-1 is pressed into the rear axle 5. When the bushing 5-1 is pressed, the elastic positioning pin 2-8 and the elastic positioning block 2-11 enable the rear axle 5 to be up and down floated; the elastic head one 2-6 cooperates with the tool floating plate 2-2 and the rotating disc bearing two 2-5, so that the rear axle 5 can be rotated and floated; the elastic head two 2-9 cooperates with the elastic positioning pin 2-8 and the guide rail sliding block mechanism one 2-7, so that the rear axle 5 can be forward and backward floated, which is convenient for automatically adjusting the position state of the rear axle 5 during pressing, prevents the bushing 5-1 from being unable to be pressed in and the workpiece from being deformed and scrapped. After the pressing is completed, the reset cylinder 2-3-4 pushes the main pressing head 2-3-1 and the auxiliary pressing head 2-3-2 away, and the reset is completed. The pressing gripper 3 moves to the other side to press the bushing 5-1, the rotating layer 2-1 rotates after the pressing on both sides is completed, and the operation is circular.

Claims

1. A flexible press-fitting robot workstation for rear axle bushings, characterized in that: The system includes a rotating base (1), a pressing fixture (2), a pressing gripper (3), and a robot (4). The rotating base (1) includes a fixed base frame (1-1) and a rotating layer (1-2). The rotating layer (1-2) is connected to the fixed base frame (1-1) via a turntable bearing (1-3). The upper sides of the rotating layer (1-2) are fixedly connected to the pressing fixture (2). The pressing fixture (2) includes a fixture base plate (2-1), a fixture floating plate (2-2), and a bushing pressing seat (2-3). -3), the tooling floating plate (2-2) is connected to the tooling base plate (2-1) through the turntable bearing two (2-5). The tooling floating plate (2-2) has elastic heads one (2-6) on both sides. The upper sides of the tooling floating plate (2-2) are connected to elastic positioning pins (2-8) through guide rail slider mechanism one (2-7). The elastic positioning pins (2-8) have elastic heads two (2-9) on both sides. The upper sides of the tooling floating plate (2-2) also have coarse positioning pins (2-10). The tooling base plate has a main pressure head (2-3-1) and an elastic support block (2-11). A clamping cylinder (2-12) is installed on both sides of the tooling base plate. The bushing press-fit seat (2-3) includes a main pressure head (2-3-1) and an auxiliary pressure head (2-3-2). The main pressure head (2-3-1) and the auxiliary pressure head (2-3-2) are mounted on the guide rail slider mechanism (2-3-3). The two ends of the reset cylinder (2-3-4) are connected to the lower sides of the main pressure head (2-3-1) and the auxiliary pressure head (2-3-2), respectively. The guide rail slider mechanism (2-3-3) is... (2-3-3) is installed above the tooling base plate (2-1); the press gripper (3) includes a gripper body (3-1), a connecting flange (3-2), a backing block (3-4) and a hydraulic cylinder (3-3). The connecting flange (3-2) is connected to the upper side of the gripper body (3-1), and one side of the gripper body (3-1) is fixedly connected to the backing block (3-4), and the other side is fixedly connected to the hydraulic cylinder (3-3). The robot (4) is fixedly connected to the connecting flange (3-2); A rotary drive cylinder (1-4) is installed below the fixed base frame (1-1). The rotary drive cylinder (1-4) is connected to the sliding plate (1-5). The sliding plate (1-5) is connected to the fixed base frame (1-1) through the guide rail slider mechanism (1-6). A rack (1-7) is fixedly installed on one side of the sliding plate (1-5). A gear (1-8) is fixedly installed below the rotating layer (1-2). The gear (1-8) meshes with the rack (1-7). The rotating layer (1-2) is equipped with a rotating locking cylinder (1-10), and a positioning hole (1-11) is fixedly provided above the fixed base frame (1-1) to cooperate with the rotating locking cylinder (1-10) for positioning.

2. The flexible press-fitting robot workstation for rear axle bushings according to claim 1, characterized in that: A positioning pin (1-9) is fixed above the rotating layer (1-2), and a positioning hole (2-13) is opened on the tooling base plate (2-1). The positioning pin (1-9) and the positioning hole (2-13) cooperate to position the tooling.

3. The flexible press-fitting robot workstation for rear axle bushings according to claim 1, characterized in that: The tooling floating plate (2-2) is equipped with a floating plate positioning cylinder (2-14), and the tooling base plate (2-1) is provided with positioning hole three (2-15) above it to cooperate with the floating plate positioning cylinder (2-14) for positioning.

4. The flexible press-fitting robot workstation for rear axle bushings according to claim 1, characterized in that: An elastic roller (2-16) is installed above the tooling base plate (2-1), and the elastic roller (2-16) is supported below the tooling floating plate (2-2).

5. The flexible press-fitting robot workstation for rear axle bushings according to claim 1, characterized in that: The reset cylinder (2-3-4) is equipped with magnetic switches on both sides.

6. The flexible press-fitting robot workstation for rear axle bushings according to claim 1, characterized in that: A photoelectric detector (2-3-5) is installed on one side of the bushing press-fit base (2-3).

7. The flexible press-fitting robot workstation for rear axle bushings according to claim 1, characterized in that: The piston rod of the hydraulic cylinder (3-3) is fixed with a connecting block (3-5), and guide rods (3-6) are fixed on both sides of the connecting block (3-5). Guide sleeves (3-7) are fixed on both sides of the hydraulic cylinder (3-3). The guide rods (3-6) cooperate with the guide sleeves (3-7). A displacement ruler (3-8) is fixed on one side of the gripper body (3-1), and the measuring head of the displacement ruler (3-8) is connected to the connecting block (3-5).

8. The flexible press-fitting robot workstation for rear axle bushings according to claim 1, characterized in that: The connecting flange (3-2) is connected to the gripper body (3-1) through the guide rail slider mechanism four (3-9). Limit seats (3-11) are fixed on both sides of the guide rail slider mechanism four (3-9). A floating spring (3-10) is provided between the limit seat (3-11) and the connecting flange (3-2).

Images