Guide rail limiting safety structure of PPU manipulator
By installing the limit safety structure of the limit rod and buffer layer at the guide rail material picking station and the material discharge station of the PPU robot, the problem of the guide rail falling beyond the safe position under abnormal conditions is solved, the safety is improved, and the collision and damage of the load and mechanical components are avoided.
Patent Information
- Application Number
- CN202421508992.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-28
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-28
AI Technical Summary
Existing PPU robots may cause the rail to fall to the lowest level in abnormal situations (such as motor power failure), causing the output load to collide with other mechanical components, damage and safety hazards.
A guide rail limit safety structure is designed, including a left fixed block, a left limit rod, a left buffer layer, a right fixed block, a right limit rod and a right buffer layer. It is located at the material extraction station and material discharge station of the guide rail. The downward movement of the guide rail is restricted through the buffer layer to prevent it from exceeding the safe position.
Effectively prevent the guide rail from falling beyond the safe position under abnormal conditions, improve safety, and avoid collision and damage between load and mechanical components.
Smart Images

Figure CN222755454U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of a PPU manipulator, in particular to a guide rail limiting safety structure of a PPU manipulator. Background Art
[0002] The PPU manipulator mainly uses a motor to drive the cam to move, and the cam drives the cycloid wheel to swing, so that the guide rail moves along the preset trajectory to carry out material handling. Figure 1 As shown, there is no limit structure at the material picking station and the material discharging station below the guide rail. As a result, when an abnormal situation occurs, such as a power failure of the motor, the guide rail may drop to the lowest point, causing the load at the output end (the load may be any one of a suction cup, a pneumatic finger, an electromagnet or other) to collide with the remaining mechanical parts, posing a risk of damage and safety hazards. Utility Model Content
[0003] In view of the above-mentioned defects in the prior art, the utility model provides a guide rail limit safety structure of a PPU manipulator to prevent the guide rail from exceeding the safe position under abnormal circumstances. The specific technical solution is as follows:
[0004] A guide rail limit safety structure of a PPU manipulator comprises a left fixed block, a left limit rod, a left buffer layer, a right fixed block, a right limit rod and a right buffer layer. The left fixed block is installed on the left side below the track plate of the PPU manipulator, the left limit rod is installed in the left fixed block, the left buffer layer is installed above the left limit rod, the left fixed block, the left limit rod and the left buffer layer are located at a material taking station of the guide rail, the right fixed block is installed on the right side below the track plate of the PPU manipulator, the right limit rod is installed in the right fixed block, the right buffer layer is installed above the right limit rod, and the right fixed block, the right limit rod and the right buffer layer are located at a material discharging station of the guide rail.
[0005] As a preferred solution of the utility model, the left limit rod is threadedly connected to the left fixed block, and the right limit rod is threadedly connected to the right fixed block.
[0006] As a preferred solution of the utility model, the left limit rod has the same structure as the right limit rod, the left limit rod is composed of a head and a threaded rod, and the left buffer layer is installed on the top of the head.
[0007] As a preferred solution of the utility model, the left buffer layer and the right buffer layer are elastomeric layers, silicone layers, rubber layers, or plastic layers.
[0008] As a preferred solution of the utility model, the left fixed block, the left limiting rod, the left buffer layer, the right fixed block, the right limiting rod and the right buffer layer are located below the n-shaped track of the track plate.
[0009] As a preferred solution of the utility model, it also includes a left nut and a right nut, the left nut is threadedly connected to the threaded rod portion of the left limiting rod, and the right nut is threadedly connected to the threaded rod portion of the right limiting rod.
[0010] Beneficial effects: The guide rail limit safety structure is cleverly designed. The left fixed block, left limit rod and left buffer layer are located at the material retrieving station of the guide rail. When the guide rail drops abnormally at the material retrieving station, the left buffer layer contacts the guide rail and limits the guide rail from continuing to descend. The right fixed block, right limit rod and right buffer layer are located at the material discharging station of the guide rail. When the guide rail drops abnormally at the material discharging station, the right buffer layer contacts the guide rail and limits the guide rail from continuing to descend. This effectively limits the position of the guide rail, prevents the guide rail from dropping beyond the safe position under abnormal circumstances, and improves safety. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a stereogram of the prior art;
[0012] Figure 2 It is a three-dimensional diagram of the utility model;
[0013] Figure 3 It is the front view of the utility model;
[0014] Figure 4 It is a stereoscopic diagram of a left fixing block, a left limiting rod, a left buffer layer, a right fixing block, a right limiting rod and a right buffer layer of the utility model. DETAILED DESCRIPTION
[0015] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings:
[0016] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the positions or elements referred to must have specific directions, be constructed and operated in specific directions. Therefore, they cannot be understood as limitations on the present invention.
[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.
[0018] like Figures 2 to 4 As shown, a guide rail limit safety structure of a PPU manipulator comprises a left fixed block 1, a left limit rod 2, a left buffer layer 3, a right fixed block 4, a right limit rod 5 and a right buffer layer 6. The left fixed block 1 is installed on the lower left side of the track plate 7 of the PPU manipulator, the left limit rod 2 is installed in the left fixed block 1, the left buffer layer 3 is installed above the left limit rod 2, the left fixed block 1, the left limit rod 2 and the left buffer layer 3 are located at a material taking station A of the guide rail 8, the right fixed block 1 is installed on the lower right side of the track plate 7 of the PPU manipulator, the right limit rod 5 is installed in the right fixed block 1, the right buffer layer 6 is installed above the right limit rod 5, and the right fixed block 4, the right limit rod 5 and the right buffer layer 6 are located at a material discharging station B of the guide rail 8.
[0019] Specifically, the left limit rod 2 is threadedly connected to the left fixed block 1, and the right limit rod 5 is threadedly connected to the right fixed block 4. The left limit rod 2 and the right limit rod 5 can be rotated to adjust the highest point position, so as to control the limit position of the left buffer layer 3 and the right buffer layer 6. In addition, the left limit rod 2 has the same structure as the right limit rod 5. The left limit rod 2 consists of a head and a threaded rod portion, and the left buffer layer 3 is installed on the top of the head. The left buffer layer 3 and the right buffer layer 6 are elastomeric layers or silicone layers or rubber layers or plastic layers, and the elastic contact guide rails avoid rigid collision damage.
[0020] Specifically, the left fixing block 1 , the left limiting rod 2 , the left buffer layer 3 , the right fixing block 4 , the right limiting rod 5 and the right buffer layer 6 are all located below the n-shaped track 9 of the track plate 7 .
[0021] Specifically, the guide rail limit safety structure also includes a left nut 10 and a right nut 11. The left nut 10 is threadedly connected to the threaded rod portion of the left limit rod 2, and the right nut 11 is threadedly connected to the threaded rod portion of the right limit rod 5. The left nut 10 and the right nut 11 can be located above or below the fixed block. The function of the left nut 10 and the right nut 11 is that when the corresponding left limit rod 2 and right limit rod 5 positions are adjusted and determined, the nuts tighten the fixed block to determine the position, thereby preventing the limit rod from loosening.
[0022] The above content is a further detailed description of the utility model in combination with specific preferred implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the protection scope of the utility model.
Claims
1. A guide rail limit safety structure for a PPU manipulator, characterized in that: It includes a left fixed block, a left limit rod, a left buffer layer, a right fixed block, a right limit rod and a right buffer layer. The left fixed block is installed on the left side below the track plate of the PPU manipulator, the left limit rod is installed in the left fixed block, the left buffer layer is installed above the left limit rod, the left fixed block, the left limit rod and the left buffer layer are located at the material taking station of the guide rail, the right fixed block is installed on the right side below the track plate of the PPU manipulator, the right limit rod is installed in the right fixed block, the right buffer layer is installed above the right limit rod, and the right fixed block, the right limit rod and the right buffer layer are located at the material discharging station of the guide rail.
2. According to claim 1, the guide rail limit safety structure of a PPU manipulator is characterized in that: The left limiting rod is threadedly connected to the left fixing block, and the right limiting rod is threadedly connected to the right fixing block.
3. According to claim 2, a guide rail limit safety structure of a PPU manipulator is characterized in that: The left limit rod has the same structure as the right limit rod. The left limit rod consists of a head and a threaded rod portion, and the left buffer layer is installed on the top of the head.
4. According to claim 3, a guide rail limit safety structure of a PPU manipulator is characterized in that: The left buffer layer and the right buffer layer are a polyurethane layer, a silicone layer, a rubber layer or a plastic layer.
5. According to claim 1, the guide rail limit safety structure of a PPU manipulator is characterized in that: The left fixing block, the left limiting rod, the left buffer layer, the right fixing block, the right limiting rod and the right buffer layer are located below the n-shaped track of the track plate.
6. According to claim 3, the guide rail limit safety structure of a PPU manipulator is characterized in that: It also includes a left nut and a right nut, the left nut is threadedly connected to the threaded rod portion of the left limiting rod, and the right nut is threadedly connected to the threaded rod portion of the right limiting rod.