Manipulator clamping device for press fitting of bullet train bearing

Abstract

The utility model discloses a manipulator clamping device for press fitting of a motor car bearing, which relates to the technical field of manipulator clamping and comprises a base, an open groove is arranged in the base, and a clamping component is arranged at the top of the base and used for clamping a motor car bearing workpiece and preventing the workpiece from falling off in the clamping process. A lifting assembly is arranged at the top of the base and used for driving the transverse rod to ascend and descend, workpieces of different heights are clamped, and the clamping assembly comprises a clamping frame. A piston rod of an electric push rod drives a fixing pile to ascend and descend to drive a rotating rod, an L-shaped rotating rod and a connecting frame to move, two clamping rods are made to be close to and separated from each other, two suction cups are attracted to the two sides of a workpiece, meanwhile, the workpiece extrudes a spring to fix the position of the workpiece, and therefore the phenomenon that the workpiece falls off due to unstable clamping is avoided; and the clamping effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of robotic gripping technology, specifically a robotic gripping device for press-fitting high-speed train bearings. Background Technology

[0002] When the bearing inner ring has a tight fit with the shaft and the outer ring has a looser fit with the bearing housing bore, a press can be used to press the bearing onto the shaft first, and then the shaft and bearing are installed together into the bearing housing bore. During press-fitting, a soft metal fitting tube should be placed on the end face of the bearing inner ring. The inner diameter of the fitting tube should be slightly larger than the journal diameter, and the outer diameter should be slightly smaller than the bearing inner ring flange to avoid pressing on the cage. At the same time, a robotic gripper is needed to pick up and put down the material during the press-fitting of the EMU bearing.

[0003] For example, a gripping device for a robotic arm, as described in Chinese Patent Application No. CN201922147362.4, can be used to grip workpieces for press-fitting train bearings. This device includes a fixed frame, which is L-shaped and comprises a horizontal block and a vertical block. A fixed clamping block is fixed to the bottom surface of the horizontal block by screws, and a motor is fixed to the top surface of the horizontal block. The output end of the motor is connected to a screw rod, which passes through the middle of one side of the horizontal block and the fixed clamping block. A movable clamping block is inserted into the lower part of the screw rod, and the movable clamping block engages with the screw rod in a helical transmission. A fixed rod is fixed to one end of the movable clamping block, and a slider is fixed to the other end of the fixed rod. The slider is slidably positioned on one side of the vertical block, and a hydraulic telescopic handle is installed on the other side of the vertical block. This allows the movable clamping block to open and close relative to the fixed clamping block, thereby gripping the workpiece. This device is low-cost, simple in structure, and suitable for small and medium-sized enterprises.

[0004] However, in actual use, the above device clamps the workpiece by opening and closing two clamping blocks. However, during the clamping and moving process, the workpiece is prone to instability and falling, which affects the clamping effect and makes the workpiece easy to fall and be damaged. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a robotic gripper device for press-fitting train bearings. The device uses an electric push rod piston rod to drive the fixed pile to rise and fall, which in turn moves the rotating rod, L-shaped rotating rod, and connecting frame, causing the two gripping rods to move closer together and then separate. This allows two suction cups to adhere to both sides of the workpiece, while a workpiece compression spring fixes its position, thus preventing unstable gripping and potential detachment. This ensures effective gripping and can effectively solve the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a robotic gripper for press-fitting high-speed train bearings, comprising a base, wherein a slot is provided inside the base;

[0007] The base is equipped with a clamping assembly at the top for clamping the train bearing workpiece and preventing the workpiece from falling during the clamping process.

[0008] The base is equipped with a lifting assembly at the top, which drives the crossbar to rise and fall, thereby clamping workpieces of different heights.

[0009] The clamping assembly includes a clamping frame located on the top of the base. An electric push rod is fixedly installed at the center of the clamping frame. A fixing post is fixedly installed on the piston rod of the electric push rod. Clamping rods are provided at both ends of the bottom of the clamping frame. A fixing block is fixedly installed on the side of the two clamping rods that are close to each other. A hinge seat is rotatably provided at one end of the fixing block. A spring is fixedly installed on one side of the hinge seat. A suction cup is fixedly installed at one end of the spring to facilitate the adsorption of the clamped workpiece and prevent it from falling off.

[0010] Preferably, both ends of the fixed pile are rotatably provided with rotating rods, the bottom end of the rotating rod is provided with an L-shaped rotating rod, the bottom end of the L-shaped rotating rod is fixed with a connecting frame, and the connecting frame is rotatably provided on one side of the top of the clamping rod. The bottom side of the clamping frame is provided with diagonal rods on both the front and rear walls, and the bottom end of the diagonal rods is rotatably provided on the other side of the top of the clamping rod, so as to facilitate the electric push rod to drive them to rotate relative to each other.

[0011] Preferably, the lifting assembly includes a threaded rod, the bottom end of which is connected to the top center of the base via a bearing. An L-shaped bracket is threaded onto the threaded rod, and a crossbar is provided at the top of the L-shaped bracket. Both ends of the bottom of the crossbar are provided with connecting rods via ball joints. The two connecting rods are respectively located at the top of the lifting assembly and the top center of the clamping frame via ball joints, facilitating the rotation of the crossbar's angle.

[0012] Preferably, a motor is installed inside the slot, the output shaft of the motor passes through the top of the base and is fixedly connected to the bottom end of the threaded rod, and a second connecting rod is fixedly installed on both sides of the bottom of the L-shaped bracket.

[0013] Preferably, a movable rod is fixedly provided at one end of the second connecting rod, and a limiting rod is provided inside the movable rod. The bottom end of the limiting rod is fixedly provided at the top of the base, so that the movable rod can limit the movement of the L-shaped bracket by moving up and down along the limiting rod.

[0014] Preferably, a control panel for driving the electric push rod and motor is fixedly provided on the front top of the base, and four evenly distributed casters are fixedly provided on the bottom of the base to facilitate the movement of this utility model.

[0015] Compared with the prior art, this utility model provides a robotic gripper device for press-fitting high-speed train bearings, which has the following advantages:

[0016] 1. The piston rod of the electric push rod drives the fixed pile to rotate the rotating rod, L-shaped rotating rod and connecting frame respectively. At the same time, the rotation of the inclined rod causes the two clamping rods to swing left and right and tilt. During the process of the two clamping rods approaching each other to clamp the workpiece, the two suction cups are attached to both sides of the workpiece. The workpiece compression spring fixes its position, thereby avoiding unstable clamping and falling off, and ensuring the clamping effect.

[0017] 2. By setting up a lifting component and operating the control panel to control the motor, the motor drives the threaded rod to rotate and moves the L-shaped bracket up and down along the threaded rod. At the same time, during the movement of the L-shaped bracket, it drives two limit rods to move up and down inside the two movable rods respectively to limit the movement of the L-shaped bracket, thereby realizing the clamping of workpieces at different heights and improving the applicability. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a rear view of the overall structure of this utility model;

[0020] Figure 3 This is a cross-sectional view of the clamping component of this utility model;

[0021] Figure 4 This is a cross-sectional view of the overall structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the lifting component structure of this utility model.

[0023] In the diagram: 1. Base, 2. Lifting assembly, 3. Crossbar, 4. Connecting rod, 5. Ball joint, 6. Clamping assembly, 7. Control panel, 8. Casters;

[0024] 21 Threaded rod, 22 L-shaped bracket, 23 Second connecting rod, 24 Movable rod, 25 Limiting rod, 26 Motor, 61 Clamping frame, 62 Electric push rod, 63 Fixed stake, 64 Rotating rod, 65 L-shaped rotating rod, 66 Connecting frame, 67 Diagonal rod, 68 Clamping rod, 69 Fixed block, 610 Hinge seat, 611 Spring, 612 Suction cup. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] like Figure 1-5 As shown, this utility model provides a robotic gripper for press-fitting train bearings, including a base 1, the base 1 having a slot inside, and four evenly distributed movable wheels 8 fixed at the bottom of the base 1 to facilitate the movement of this utility model.

[0027] like Figure 1-4 As shown, the base 1 is provided with a clamping assembly 6 at the top for clamping the train bearing workpiece and preventing the workpiece from falling during the clamping process. The clamping assembly 6 includes a clamping frame 61, which is located at the top of the base 1. An electric push rod 62 is fixedly provided at the center inside the clamping frame 61. A fixing post 63 is fixedly provided on the piston rod of the electric push rod 62. Clamping rods 68 are provided at both ends of the bottom of the clamping frame 61. A fixing block 69 is fixedly provided on the side of the two clamping rods 68 that are close to each other. A hinge seat 610 is rotatably provided at one end of the fixing block 69.

[0028] A spring 611 is fixedly provided on one side of the hinge seat 610, and a suction cup 612 is fixedly provided on one end of the spring 611 to facilitate the adsorption of the clamped workpiece and prevent it from falling. Rotating rods 64 are rotatably provided at both ends of the fixed post 63. An L-shaped rotating rod 65 is rotatably provided at the bottom end of the rotating rod 64. A connecting frame 66 is fixedly provided at the bottom end of the L-shaped rotating rod 65, and the connecting frame 66 is rotatably provided on one side of the top of the clamping rod 68. An inclined rod 67 is rotatably provided on both the front and rear walls of one side of the bottom of the clamping frame 61, and the bottom end of the inclined rod 67 is rotatably provided on the other side of the top of the clamping rod 68 to facilitate the electric push rod 62 to drive them to rotate relative to each other.

[0029] like Figure 1 , 2 As shown in Figure 5, the base 1 is provided with a lifting assembly 2 at the top, which is used to drive the crossbar 3 to lift and lower, so as to clamp workpieces of different heights. The lifting assembly 2 includes a threaded rod 21, and a motor 26 is provided inside the slot. A control panel 7 for driving the electric push rod 62 and the motor 26 is fixedly provided on the front side of the top of the base 1.

[0030] By setting up the clamping assembly 6, the control panel 7 controls the operation of the electric push rod 62 inside the clamping frame 61. The piston rod of the electric push rod 62 drives the fixed pile 63 to rise and fall, so that the fixed pile 63 drives the rotating rod 64, the L-shaped rotating rod 65 and the connecting frame 66 to rotate respectively. At the same time, the rotation of the inclined rod 67 causes the two clamping rods 68 to swing left and right and tilt. During the process of the two clamping rods 68 approaching each other to clamp the workpiece, the two hinge seats 610 rotate around the fixed block 69 respectively, so that the two suction cups 612 are attached to both sides of the workpiece. At the same time, the workpiece compression spring 611 fixes its position, thereby avoiding unstable clamping and falling off, and ensuring the clamping effect.

[0031] like Figure 1 , 2As shown in Figure 5, the bottom end of the threaded rod 21 is connected to the top center of the base 1 via a bearing. An L-shaped bracket 22 is threaded onto the threaded rod 21. A crossbar 3 is provided at the top of the L-shaped bracket 22. Both ends of the bottom of the crossbar 3 are provided with connecting rods 4 via ball joints 5. The two connecting rods 4 are respectively located at the top of the lifting assembly 2 and the top center of the clamping frame 61 via ball joints 5, which facilitates the rotation of the angle of the crossbar 3.

[0032] The output shaft of the motor 26 passes through the top of the base 1 and is fixedly connected to the bottom of the threaded rod 21. The bottom two sides of the L-shaped bracket 22 are fixedly provided with second connecting rods 23. One end of the second connecting rod 23 is fixedly provided with a movable rod 24. The movable rod 24 is provided with a limiting rod 25 inside, and the bottom end of the limiting rod 25 is fixedly provided at the top of the base 1, so that the movable rod 24 can move up and down along the limiting rod 25 to limit the movement of the L-shaped bracket 22.

[0033] By setting up the lifting component 2, the control panel 7 controls the motor 26 to work. The motor 26 drives the threaded rod 21 to rotate and drives the L-shaped bracket 22 to rise and fall along the threaded rod 21. At the same time, during the movement of the L-shaped bracket 22, the two limit rods 25 move up and down inside the two movable rods 24 respectively to limit the movement of the L-shaped bracket 22, thereby realizing the clamping of workpieces at different heights and improving the applicability.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A mechanical hand clamping device for dynamic bearing press fitting, comprising a base (1), characterized in that: The base (1) is internally provided with a slot; The base (1) is provided with a clamping assembly (6) on the top, which is used for clamping the motor bearing workpiece and preventing the workpiece from falling during clamping; The base (1) is provided with a lifting assembly (2) on the top, which is used for driving the horizontal rod (3) to lift and clamp workpieces of different heights; The clamping assembly (6) comprises a clamping frame (61), which is arranged on the top of the base (1), and a motor-driven push rod (62) is fixedly arranged in the center of the clamping frame (61), the piston rod of the motor-driven push rod (62) is fixedly provided with a fixed stake (63), and the clamping frame (61) is provided with clamping rods (68) at both ends of the bottom, the side close to each other of the two clamping rods (68) is fixedly provided with a fixed block (69), one end of the fixed block (69) is rotatably provided with a hinge seat (610), one side of the hinge seat (610) is fixedly provided with a spring (611), and one end of the spring (611) is fixedly provided with a suction cup (612).

2. The mechanical hand gripping device for bearing press assembly of a motor car according to claim 1, characterized in that: Both ends of the fixed stake (63) are rotatably provided with rotating rods (64), the bottom end of the rotating rod (64) is rotatably provided with an L-shaped rotating rod (65), the bottom end of the L-shaped rotating rod (65) is fixedly provided with a connecting frame (66), and the connecting frame (66) is rotatably arranged on one side of the top of the clamping rod (68), and the front and rear walls of one side of the bottom of the clamping frame (61) are rotatably provided with inclined rods (67), and the bottom end of the inclined rod (67) is rotatably arranged on the other side of the top of the clamping rod (68).

3. The mechanical hand gripping device for bearing press assembly of a motor car according to claim 2, characterized in that: The lifting assembly (2) comprises a threaded rod (21), the bottom end of the threaded rod (21) is connected to the center of the top of the base (1) through a bearing, an L-shaped support (22) is threadedly connected to the threaded rod (21), the top end of the L-shaped support (22) is provided with a horizontal rod (3), the bottom ends of the two horizontal rods (3) are provided with connecting rods (4) through spherical joints (5), and the two connecting rods (4) are arranged on the top of the lifting assembly (2) and the center of the top of the clamping frame (61) through spherical joints (5) respectively.

4. The mechanical hand gripping device for bearing press assembly of a motor car according to claim 3, characterized in that: The slot is internally provided with a motor (26), the output shaft of the motor (26) penetrates the top of the base (1) and is fixedly connected with the bottom end of the threaded rod (21), and the bottom sides of the L-shaped support (22) are fixedly provided with second connecting rods (23).

5. The mechanical hand gripping device for bearing press assembly of a motor car according to claim 4, characterized in that: One end of the second connecting rod (23) is fixedly provided with a movable rod (24), the movable rod (24) is internally provided with a limiting rod (25), and the bottom end of the limiting rod (25) is fixedly arranged on the top of the base (1).

6. The mechanical hand gripping device for bearing press assembly of a motor car according to claim 4, characterized in that: A control panel (7) for driving the motor-driven push rod (62) and the motor (26) to work is fixedly arranged on the top of the base (1), and four moving wheels (8) are fixedly arranged on the bottom of the base (1).

Images