A linkage assembly compatible with a gripper

Abstract

The utility model provides a kind of connecting rod assembly compatible hand claw, including three-fingered cylinder and three clamping blocks, three clamping blocks are respectively arranged on the three fingers of three-fingered cylinder, clamping block is U-shaped, one end of clamping block U-shaped is connected with the finger of three-fingered cylinder, the other end of clamping block U-shaped extends downward and is equipped with arc clamping block, the arc outer side surface of arc clamping block is cylindrical surface, the arc inner side surface of arc clamping block is sequentially connected by multiple vertical planes and forms.This utility model can be compatible with crank pin, connecting rod, needle bearing three different shapes of parts grabbing, can better realize the assembly of connecting rod assembly, improve handling efficiency, reduce cost.

Description

Technical Field

[0001] This utility model belongs to the field of gripper technology, and in particular relates to a linkage assembly compatible with grippers. Background Technology

[0002] Before the crankpin pressing process, crankshaft components require the assembly of the connecting rod assembly, which involves assembling the connecting rod, crankpin, and needle roller bearing together and then placing the connecting rod assembly into the crankpin pressing machine. However, the connecting rod, crankpin, and needle roller bearing have various shapes. Currently, the handling and assembly of these components are typically done manually or using different robotic grippers. Manual handling and assembly are inefficient and labor-intensive, while using different robotic grippers is relatively expensive. Therefore, there is an urgent need to design a connecting rod assembly compatible gripper that can handle the three differently shaped parts—crankpin, connecting rod, and needle roller bearing—and better facilitate the assembly of the connecting rod assembly. Utility Model Content

[0003] The purpose of this invention is to provide a gripper compatible with connecting rod assemblies, capable of gripping three parts of different shapes: crank pin, connecting rod, and needle roller bearing. This enables better assembly of connecting rod assemblies, improves handling efficiency, and reduces costs.

[0004] This utility model is achieved through the following technical solution: A linkage assembly compatible with a gripper includes a three-finger cylinder and three gripping blocks. The three gripping blocks are respectively disposed on the three fingers of the three-finger cylinder. The gripping blocks are U-shaped. One end of the U-shaped gripping block is connected to the finger of the three-finger cylinder. The other end of the U-shaped gripping block extends downward to provide an arc-shaped gripping block. The arc-shaped outer surface of the arc-shaped gripping block is a cylindrical surface, and the arc-shaped inner surface of the arc-shaped gripping block is formed by multiple vertical planes connected in sequence.

[0005] Furthermore, the bottom end of the arc-shaped inner side of the arc-shaped clamping block is recessed inward to form a notch, and the side of the notch is formed by multiple vertical planes connected in sequence, with the top surface of the notch being a horizontal plane.

[0006] Furthermore, a limiting block is provided at the top of the arc-shaped inner side of the arc-shaped clamping block.

[0007] Furthermore, the clamping block includes a first horizontal part, a second horizontal part, and a vertical part connecting the first horizontal part and the second horizontal part. The arc-shaped clamping block is disposed on the end of the second horizontal part away from the vertical part. The first horizontal part is provided with several through holes. The fingers of the three-finger cylinder are provided with threaded holes corresponding to the several through holes. The first horizontal part is disposed on the fingers of the three-finger cylinder by bolts passing through the through holes and being threadedly connected to the corresponding threaded holes.

[0008] Furthermore, a flange is provided at the top of the three-finger cylinder.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the outer side of the clamping block is a cylindrical surface, which can meet the clamping of hole-type parts; the inner side of the clamping block is composed of multiple vertical planes, which can meet the clamping of shaft-type parts; and the bottom notch of the inner side of the clamping block is used to clamp needle roller bearings, which can meet the protection of the needle rollers on the side of the needle roller bearings. Thus, this utility model can be compatible with the gripping of three parts with different shapes: crank pin, connecting rod, and needle roller bearing, which can better realize the assembly of connecting rod assembly, improve handling efficiency, and reduce costs. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the linkage assembly compatible with the gripper of this utility model; Figure 2 This is a schematic diagram of the structure of the linkage assembly compatible with the gripper linkage of this utility model; Figure 3 A side view of the linkage assembly compatible with the gripper grasping linkage of this utility model; Figure 4 This is a schematic diagram of the structure of the connecting rod assembly of this utility model that is compatible with the gripper grasping the crank pin; Figure 5 Side view of the connecting rod assembly of this utility model, which is compatible with the gripper grasping the crank pin; Figure 6 This is a schematic diagram of the structure of the linkage assembly of this utility model that is compatible with the gripper needle roller bearing; Figure 7 A side view of the linkage assembly of this utility model compatible with gripper needle roller bearings; Figure 8 This is a schematic diagram of the structure of the gripping block in the compatible gripper of the linkage assembly of this utility model.

[0011] In the figure, 1-three-finger cylinder, 2-clamping block, 21-first horizontal part, 22-second horizontal part, 23-vertical part, 24-through hole, 3-arc-shaped clamping block, 4-notch, 5-limiting block, 6-flange, 7-connecting rod, 8-crank pin, 9-needle roller bearing. Detailed Implementation

[0012] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0013] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0014] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the description of this utility model, terms such as "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0015] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0016] In the description of this utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and 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.

[0017] Please see Figure 1 , Figure 1 This is a schematic diagram of the structure of the linkage assembly compatible with the gripper of this utility model. A linkage assembly compatible with a gripper includes a three-finger cylinder 1 and three gripping blocks 2. The three gripping blocks 2 are respectively disposed on the three fingers of the three-finger cylinder 1. The gripping blocks 2 are U-shaped, with one end of the U-shape connected to the finger of the three-finger cylinder 1, and the other end of the U-shape extending downwards to form an arc-shaped gripping block 3. The outer arc-shaped surface of the arc-shaped gripping block 3 is a cylindrical surface, and the inner arc-shaped surface of the arc-shaped gripping block 3 is formed by multiple vertical planes connected sequentially.

[0018] Please refer to the following: Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of the linkage assembly compatible with the gripper grasping linkage of this utility model. Figure 3 This is a side view of the linkage assembly of this utility model, compatible with a gripper for grasping the linkage. The outer surface of the clamping block 2 is cylindrical, which can accommodate the gripping of hole-type parts. For example, for gripping the linkage 7, the hole feature at the large end of the linkage 7 is locked, restricting the hole at the large end of the linkage 7. Specifically, the three fingers of the three-finger cylinder 1 are controlled to push outwards, driving the clamping block 2 and the arc-shaped clamping block 3 to move outwards. This causes the arc-shaped outer surface of the arc-shaped clamping block 3 to support the inner surface of the hole at the large end of the linkage 7, achieving gripping. Figure 2 and Figure 3 As shown. The outer curved surface of the arc-shaped clamping block 3 is designed as a cylindrical surface, which can better fit the inner surface of the large end hole of the connecting rod 7, and can be compatible with different models of connecting rod 7.

[0019] Please refer to the following: Figure 4 and Figure 5 , Figure 4 This is a schematic diagram of the connecting rod assembly of this utility model that is compatible with the gripper grasping the crank pin. Figure 5 This is a side view of the connecting rod assembly of this utility model, which is compatible with a gripper for grasping a crank pin. The inner surface of the clamping block 2 is composed of multiple vertical planes, which can meet the clamping requirements of shaft-type parts. For example, for clamping the crank pin 8, the outer cylindrical surface feature of the crank pin 8 is locked, and the cylindrical surface of the crank pin 8 is restricted. Specifically, the three fingers of the three-finger cylinder 1 are controlled to tighten inward, driving the clamping block 2 and the arc-shaped clamping block 3 to move inward, so that the arc-shaped inner surface of the arc-shaped clamping block 3 clamps the outer cylindrical surface of the crank pin 8, thereby achieving clamping. Figure 4 and Figure 5 As shown. The arc-shaped inner surface of the arc-shaped clamping block 3 is composed of multiple vertical planes, with an obtuse angle between adjacent vertical planes, achieving multi-point contact with the outer cylindrical surface of the crank pin 8, making the clamping more stable and compatible with different models of crank pin 8. In one embodiment, the arc-shaped inner surface of the arc-shaped clamping block 3 is formed by three vertical planes connected sequentially. In another embodiment, a limiting block 5 is provided at the top of the arc-shaped inner surface of the arc-shaped clamping block 3. The limiting block 5 can be used to limit the position of shaft-like parts, such as limiting the top of the crank pin 8.

[0020] Please refer to the following: Figure 6 and Figure 7 , Figure 6 This is a schematic diagram of the linkage assembly of this utility model that is compatible with gripper-type needle roller bearings. Figure 7This is a side view of the linkage assembly of this utility model compatible with the gripper for holding a needle roller bearing. The needle roller bearing 9, like the crank pin 8, is a shaft-type part. The gripping process of the needle roller bearing 9 is the same as that of the crank pin 8. However, since the needle rollers on the needle roller bearing 9 are easily damaged, to avoid damaging the needle rollers during gripping, in one embodiment, the bottom end of the arc-shaped inner side of the arc-shaped clamping block 3 is recessed inward to form a notch 4. The side of the notch 4 is formed by multiple vertical planes connected sequentially, and the top surface of the notch 4 is a horizontal plane. For gripping the needle roller bearing 9, the cylindrical surface feature of the outer edge of the needle roller bearing 9 is locked, and the cylindrical surface of the outer edge of the needle roller bearing 9 is restricted. Specifically, the three fingers of the three-finger cylinder 1 are controlled to tighten inward, driving the clamping block 2 and the arc-shaped clamping block 3 to move inward, thereby causing the side of the notch 4 of the arc-shaped clamping block 3 to clamp the cylindrical surface of the outer edge of the needle roller bearing 9, achieving gripping. Figure 6 and Figure 7 As shown. The cylindrical surface of the outer edge of the needle roller bearing 9 is clamped by the side of the notch 4, and the top surface of the notch 4 restricts the top surface of the outer edge of the needle roller bearing 9, ensuring that the arc-shaped clamping block 3 does not contact the needle rollers of the needle roller bearing 9, thereby avoiding damage to the needle rollers of the needle roller bearing 9 during the gripping process. The side and top surfaces of the notch 4 can limit the needle roller bearing 9 from two directions, and the side of the notch 4 is also composed of multiple vertical planes, achieving multi-point contact with the cylindrical surface of the outer edge of the needle roller bearing 9, making the gripping more stable and compatible with gripping different models of needle roller bearings 9.

[0021] Through the above method, the compatible gripper of the connecting rod 7 assembly of this utility model can grip three parts with different shapes: crank pin 8, connecting rod 7, and needle roller bearing 9. This enables better assembly of the connecting rod assembly, improves handling efficiency, and reduces costs.

[0022] Please refer to the following: Figure 8 , Figure 8 This is a schematic diagram of the gripping block in the connecting rod assembly compatible with the gripper of this utility model. In one embodiment, the gripping block 2 includes a first horizontal part 21, a second horizontal part 22, and a vertical part 23 connecting the first horizontal part 21 and the second horizontal part 22. An arc-shaped gripping block 3 is disposed on the end of the second horizontal part 22 away from the vertical part 23. The first horizontal part 21 is provided with a plurality of through holes 24, and the fingers of the three-finger cylinder 1 are provided with threaded holes corresponding to the plurality of through holes 24. The first horizontal part 21 is disposed on the fingers of the three-finger cylinder 1 by bolts passing through the through holes 24 and threadedly connecting to the corresponding threaded holes. The gripping block 2 and the fingers of the three-finger cylinder 1 are connected by bolts, which makes the installation firm and reliable, and facilitates the installation and disassembly of the gripping block 2. In one embodiment, the gripping block 2 and the arc-shaped gripping block 3 are made of copper. Copper is a relatively stable material, not easily deformed, and not easily scratched, possessing stability and economy.

[0023] In one embodiment, the top of the three-finger cylinder 1 is provided with a flange 6. The flange 6 facilitates the mounting of the three-finger cylinder 1 onto the robotic arm.

[0024] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Therefore, any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the content of the technical solution of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A linkage assembly compatible with a gripper, characterized in that, It includes a three-finger cylinder and three clamping blocks. The three clamping blocks are respectively disposed on the three fingers of the three-finger cylinder. The clamping blocks are U-shaped. One end of the U-shaped clamping block is connected to the finger of the three-finger cylinder. The other end of the U-shaped clamping block extends downward to provide an arc-shaped clamping block. The arc-shaped outer surface of the arc-shaped clamping block is a cylindrical surface. The arc-shaped inner surface of the arc-shaped clamping block is formed by multiple vertical planes connected in sequence.

2. The linkage assembly compatible with a gripper according to claim 1, characterized in that, The bottom end of the arc-shaped inner side of the arc-shaped clamp is recessed to form a notch, and the side of the notch is formed by a series of vertical planes connected in sequence. The top surface of the notch is a horizontal plane.

3. The linkage assembly compatible with a gripper according to claim 1, characterized in that, The upper end of the arc-shaped inner side of the arc-shaped clamping block is provided with a limiting block.

4. The linkage assembly compatible with a gripper according to claim 1, characterized in that, The clamping block includes a first horizontal part, a second horizontal part, and a vertical part connecting the first horizontal part and the second horizontal part. The arc-shaped clamping block is disposed on the end of the second horizontal part away from the vertical part. The first horizontal part is provided with several through holes. The fingers of the three-finger cylinder are provided with threaded holes corresponding to the several through holes. The first horizontal part is disposed on the fingers of the three-finger cylinder by bolts passing through the through holes and being threadedly connected to the corresponding threaded holes.

5. The linkage assembly compatible with a gripper according to claim 1, characterized in that, The top of the three-finger cylinder is equipped with a flange.

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