A load connecting plate mounting structure of a PPU robot

Abstract

The utility model relates to a kind of load connecting plate mounting structure of PPU manipulator, including longitudinal guide rail, cam connecting plate and load connecting plate, cam connecting plate is installed in longitudinal guide rail front upper part, load connecting plate is installed in longitudinal guide rail front, the load connecting plate extends along the longitudinal length direction of longitudinal guide rail, load connecting plate covers more than one half area of longitudinal guide rail, two longitudinal guide rails are connected in the back of load connecting plate, load connecting plate extends close to cam connecting plate, load connecting plate connects two longitudinal guide rails together completely, force received by load connecting plate can be more evenly transmitted to longitudinal guide rail, effectively solve the problem that single longitudinal guide rail is deformed greatly, greatly improve the pick-and-place position precision and service life of PPU manipulator when high-speed motion.

Description

Technical Field

[0001] This utility model relates to the field of PPU robotic arms, specifically to a load connection plate mounting structure for a PPU robotic arm. Background Technology

[0002] The PPU robotic arm primarily uses a motor-driven cam to move, which in turn causes a cycloidal wheel to swing, moving a guide rail along a preset trajectory. The guide rail then moves a load-bearing plate, and a material handling assembly is mounted in front of the load-bearing plate to achieve material transport. For example... Figure 1 As shown, the structural defect of the existing PPU robot is that the load connecting plate 01 is installed at the end of the guide rail 02, and there is a large gap between the load connecting plate 01 and the upper cam connecting plate 03. The guide rail 02 between the two is exposed and not connected to the load connecting plate 01. For example, the utility model patent filed and authorized by the applicant with the State Intellectual Property Office on April 4, 2023; patent number CN202223260535.1, invention titled "A Load Connecting Block Mechanism for a PPU Robot", adopts this structure. The applicant found that in the use of this load connecting plate installation structure, when the load connecting plate is subjected to force, only a small part of the end is acted upon when it is transferred to the guide rail. The exposed part of the guide rail is prone to deformation and twisting, which causes damage to the guide rail and affects the normal operation of the PPU robot. Utility Model Content

[0003] To address the aforementioned shortcomings of existing technologies, the technical problem this invention aims to solve is how to improve the mounting structure of the load connection plate and guide rail of the PPU robotic arm. The specific technical solution is as follows:

[0004] A load connection plate mounting structure for a PPU robot includes a longitudinal guide rail, a cam connection plate, and a load connection plate. The cam connection plate is installed at the upper front part of the longitudinal guide rail, and the load connection plate is installed at the front of the longitudinal guide rail. The load connection plate extends along the longitudinal length of the longitudinal guide rail and covers more than half of the area of ​​the longitudinal guide rail. Two longitudinal guide rails are connected to the back of the load connection plate, and the load connection plate extends close to the cam connection plate.

[0005] As a preferred embodiment of this utility model, the back of the load connecting plate is provided with two spaced guide rail grooves, and the two longitudinal guide rails are respectively embedded in the two guide rail grooves.

[0006] As a preferred embodiment of this utility model, the longitudinal guide rail is provided with multiple countersunk holes, which are arranged at equal intervals along the longitudinal length of the guide rail. The load connecting plate is provided with two rows of threaded holes, the positions of which correspond to the positions of the countersunk holes. The longitudinal guide rail is fixedly installed on the back of the load connecting plate by screwing countersunk screws into the countersunk holes and threaded holes in sequence.

[0007] As a preferred embodiment of this utility model, a single longitudinal guide rail is slidably connected to two longitudinal sliders on its back. The two longitudinal sliders are distributed along the longitudinal length of the guide rail. The longitudinal sliders are fixedly installed in front of the longitudinal slider mounting plate. A transverse sliding plate is fixedly installed on the back of the longitudinal slider mounting plate. A transverse slider is fixedly installed on the back of the transverse sliding plate. The transverse slider is slidably connected to the transverse guide rail. The transverse guide rail is horizontally fixedly installed on the base plate of the PPU robot.

[0008] As a preferred embodiment of this utility model, a process through hole is provided in the middle of the load connecting plate, which is used for the screws that lock the longitudinal slider mounting plate and the transverse sliding plate to pass through.

[0009] As a preferred embodiment of this utility model, the load connecting plate covers more than two-thirds of the longitudinal guide rail area.

[0010] As a preferred embodiment of this utility model, the interval between the load connecting plate and the cam connecting plate is 1mm to 5mm.

[0011] The advantages of the load connecting plate mounting structure of the PPU robot of this utility model are as follows: the load connecting plate covers more than half of the longitudinal guide rail area, the back of the load connecting plate is connected to two longitudinal guide rails, the load connecting plate extends close to the cam connecting plate, the load connecting plate completely connects the two longitudinal guide rails together, the force on the load connecting plate can be transmitted to the longitudinal guide rails more evenly, effectively solving the problem of large deformation of a single longitudinal guide rail under stress, and greatly improving the picking and placing position accuracy and service life of the PPU robot during high-speed movement. Attached Figure Description

[0012] Figure 1 It is a 3D diagram of existing technology;

[0013] Figure 2 This is a perspective view of the present invention;

[0014] Figure 3 This is an exploded view of the present invention;

[0015] Figure 4 This is a perspective view from the rear of the longitudinal guide rail, cam connecting plate and load connecting plate of this utility model when they are in combination.

[0016] Figure 5 This is a side view of the longitudinal guide rail, cam connecting plate and load connecting plate of this utility model when they are in combination. Detailed Implementation

[0017] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings:

[0018] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "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. In this figure, the longitudinal direction refers to the Y direction and the transverse direction refers to the X direction. They do not indicate or imply that the indicated position or element 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.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0020] like Figures 2-5 As shown, a load connection plate mounting structure for a PPU robotic arm includes a longitudinal guide rail 1, a cam connection plate 2, and a load connection plate 3. The cam connection plate 2 is installed on the upper front part of the longitudinal guide rail 1, and the load connection plate 3 is installed in front of the longitudinal guide rail 1. The load connection plate 3 extends along the longitudinal length of the longitudinal guide rail 1 and covers more than half of the area of ​​the longitudinal guide rail 1, that is, the area of ​​the longitudinal guide rail 1 covered by the load connection plate 3 is greater than 0.5 relative to the total area of ​​the longitudinal guide rail 1. Two longitudinal guide rails 1 are connected to the back of the load connection plate 3. The load connection plate 3 extends close to the cam connection plate 2. The load connection plate 3 is very close to the cam connection plate 2. The load connection plate 3 covers the longitudinal guide rail 1, and the force on the load connection plate 3 can be evenly transmitted to the longitudinal guide rail 1.

[0021] like Figure 4 As shown, the load connecting plate 3 has two spaced guide rail grooves 4 on its back. Two longitudinal guide rails 1 are respectively embedded in the two guide rail grooves 4. The longitudinal guide rail 1 has multiple countersunk holes 5, which are arranged at equal intervals along the longitudinal length of the guide rail. The multiple countersunk holes 5 extend close to the cam connecting plate 2. The load connecting plate 3 has two rows of threaded holes 6, and the positions of the threaded holes 6 correspond to the positions of the countersunk holes 5. The longitudinal guide rail 1 is fixedly installed on the back of the load connecting plate 3 by screwing countersunk screws into the countersunk holes 5 and threaded holes 6 in sequence. The structure is stable and reliable.

[0022] like Figure 2 and 3As shown, two longitudinal sliders 7 are slidably connected to the back of a single longitudinal guide rail 1. The two longitudinal sliders 7 are distributed along the longitudinal length of the guide rail. The longitudinal sliders 7 are fixedly installed in front of the longitudinal slider mounting plate 8. A transverse sliding plate 9 is fixedly installed on the back of the longitudinal slider mounting plate 8. A transverse slider 10 is fixedly installed on the back of the transverse sliding plate 9. The transverse slider 10 is slidably connected to a transverse guide rail 11. The transverse guide rail 11 is transversely fixedly installed at the base plate 12 of the PPU robot.

[0023] Specifically, the load connection plate 3 has a process through hole 13 in the middle. The process through hole 13 has a large diameter and is used for the screws that lock the longitudinal slider mounting plate 8 and the transverse plate 9 to pass through. That is, the longitudinal slider mounting plate 8 and the transverse plate 9 are fixed together by screws, and the screws enter from the process through hole 12.

[0024] In some implementations, the load connecting plate 3 covers more than two-thirds of the longitudinal guide rail 1. In some implementations, the gap L between the load connecting plate 3 and the cam connecting plate 2 is 1mm to 5mm.

[0025] The load connection plate 3 covers a large area of ​​the longitudinal guide rail 1, so the force can be transmitted to the longitudinal guide rail 1 more evenly. The longitudinal guide rail 1 is not easily deformed, so there is no need to worry about the robot arm malfunctioning during operation.

[0026] The above description is a further detailed explanation of the present utility model in conjunction with specific preferred embodiments. It should not be considered that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the protection scope of the present utility model.

Claims

1. A load connection plate mounting structure for a PPU robotic arm, comprising a longitudinal guide rail, a cam connection plate, and a load connection plate, wherein the cam connection plate is mounted on the upper front part of the longitudinal guide rail, and the load connection plate is mounted on the front of the longitudinal guide rail, characterized in that: The load connecting plate extends along the longitudinal length of the longitudinal guide rail, covering more than half of the longitudinal guide rail area. The back of the load connecting plate is connected to two longitudinal guide rails, and the load connecting plate extends close to the cam connecting plate.

2. The load connection plate mounting structure for a PPU robotic arm according to claim 1, characterized in that: The back of the load connection plate has two spaced guide rail grooves, and two longitudinal guide rails are respectively embedded in the two guide rail grooves.

3. The load connection plate mounting structure for a PPU robotic arm according to claim 2, characterized in that: The longitudinal guide rail is provided with multiple countersunk holes, which are arranged at equal intervals along the longitudinal length of the guide rail. The load connecting plate is provided with two rows of threaded holes, the positions of which correspond to the positions of the countersunk holes. The longitudinal guide rail is fixedly installed on the back of the load connecting plate by screwing countersunk screws into the countersunk holes and threaded holes in sequence.

4. The load connection plate mounting structure for a PPU robot according to any one of claims 1-3, characterized in that: Two longitudinal sliders are slidably connected to the back of a single longitudinal guide rail. The two longitudinal sliders are distributed along the longitudinal length of the guide rail. The longitudinal sliders are fixedly installed in front of the longitudinal slider mounting plate. A transverse sliding plate is fixedly installed on the back of the longitudinal slider mounting plate. A transverse slider is fixedly installed on the back of the transverse sliding plate. The transverse slider is slidably connected to the transverse guide rail. The transverse guide rail is fixedly installed transversely on the base plate of the PPU robot.

5. The load connection plate mounting structure for a PPU robotic arm according to claim 4, characterized in that: The load connection plate has a process through hole in the middle, which is used for the screws that lock the longitudinal slider mounting plate and the transverse sliding plate to pass through.

6. The load connection plate mounting structure for a PPU robotic arm according to claim 1, characterized in that: The load connection plate covers more than two-thirds of the longitudinal guide rail area.

7. The load connection plate mounting structure for a PPU robotic arm according to claim 1 or 6, characterized in that: The gap between the load connecting plate and the cam connecting plate is 1mm to 5mm.

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