Rod piece for mechanical arm

Abstract

The utility model discloses a rod piece for a mechanical arm, which relates to the technical field of mechanical arms and comprises a rod body, a connecting part and a bearing seat which are integrally formed. The rod body, the connecting part and the bearing seat are arranged, the rod body is provided with the first rod section, the bent section and the second rod section, the connecting part and the bearing seat are movably connected with other components through connecting pieces respectively, and the lightening holes are formed in the rod body, so that the overall weight of the rod piece is reduced, the manufacturing cost of equipment is reduced, and installation and debugging are convenient; the service life of the mechanical arm is prolonged; by means of the structure, when other components are installed, normal movement of the mechanical arm cannot be interfered, friction and abrasion are reduced, mechanical faults are reduced, functional diversity is increased, meanwhile, the connecting portion and the bearing seat are designed in a matched mode, accurate control of the mechanical arm during bending and stretching can be guaranteed, and the mechanical arm is convenient to use. And stress and loads generated in the movement process of the mechanical arm are dispersed, and the overall stability and durability are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical arm technical field especially relates to a rod piece for mechanical arm. BACKGROUND

[0002] The popularization and development of automation technology, the machine arm plays a vital role in industrial production, laboratory operation and other fields, therefore the market for the precision and load capacity requirement of mechanical arm is higher and higher, and the material and structure improvement of mechanical arm is also the problem that we need to consider, the main problem existing in the actual application process of the current mechanical arm is: the overall weight of common mechanical arm is too heavy, which not only increases the manufacturing cost of equipment, but also brings many inconvenience in installation, debugging and daily use. The heavy mechanical arm not only requires higher support structure strength, but also limits its application in some lightweight, high-precision occasions.

[0003] Secondly, the strength of the mechanical arm is insufficient, which is easy to bend when bearing a large load or performing complex actions. This not only affects the working precision of the mechanical arm, but also may cause safety hazards to the surrounding environment or operators.

[0004] In addition, in the actual application process of the mechanical arm, other components are often not suitable to be arranged between the two straight rods, because these components may interfere with the normal movement of the mechanical arm, increase friction and wear, and even cause mechanical failure. This also limits the design flexibility and functional diversity of the mechanical arm.

[0005] Therefore, in order to solve the above problems, it is necessary to optimize the structure of the mechanical arm to improve its overall performance and application range. CONTENT OF THE UTILITY MODEL

[0006] The utility model discloses a kind of rod pieces for mechanical arm. The rod piece for mechanical arm of the utility model is designed flexibly, small in weight, high in structural strength, suitable for high-precision occasions, reduce manufacturing cost and safety hazard.

[0007] The utility model realizes by the following technical solutions:

[0008] A kind of rod piece for mechanical arm, comprising: integrally-formed rod body, connecting portion and bearing seat;

[0009] The rod body includes first rod section, second rod section and curved section, the curved section is arranged between the first rod section and the second rod section, and the first rod section, the second rod section and the curved section are integrally forged into shape;

[0010] The connecting portion is arranged at one end of the first rod section away from the curved section;

[0011] The bearing seat is arranged at one end of the second rod section away from the curved section.

[0012] The rod body is internally provided with at least one lightening hole.

[0013] As a further description of the above technical solution:

[0014] The lightening holes are at least three, and a reinforcing rib is formed between every two adjacent lightening holes.

[0015] As a further description of the above technical solution:

[0016] The length of the first rod section is less than that of the second rod section.

[0017] As a further description of the above technical solution:

[0018] The connecting part comprises a circular body, a center hole is arranged at the center position of the circular body, and a positioning groove is arranged on the inner side wall of the circular body.

[0019] As a further description of the above technical solution:

[0020] The bearing seat is sequentially provided with a seat body, an outer ring and an inner ring from the outside to the inside along the radial direction, and a bearing accommodating space for mounting a bearing is formed in the inside; a plurality of through holes are arranged on the outer ring; and a positioning port is further arranged on the inner side of the outer ring.

[0021] As a further description of the above technical solution:

[0022] First and second recesses are respectively arranged on the two sides of the connecting part of the bearing seat and the second rod section, and fixing holes are arranged in the first and second recesses.

[0023] As a further description of the above technical solution:

[0024] The fixing holes are threaded holes.

[0025] As a further description of the above technical solution:

[0026] The back of the rod body is further provided with a bottom plate.

[0027] As a further description of the above technical solution:

[0028] The side of the bearing seat close to the bottom plate is recessed to the side away from the bottom plate.

[0029] As a further description of the above technical solution:

[0030] The included angle formed by the extension lines of the first rod section and the second rod section is 150°-170°.

[0031] The utility model has the following beneficial effects:

[0032] The utility model provides a rod piece for mechanical arm, through setting up integrative rod body, connecting portion and bearing seat, connecting portion and bearing seat respectively through connecting piece and other components swing joint, the inside of rod body is equipped with weight reduction hole, and the overall weight of rod piece is reduced, not only reduces the manufacturing cost of equipment, makes the rod piece can apply in some lightweight, high precision occasion, also be convenient for installation, debugging, increases the service life of mechanical arm, the rod body is equipped with first rod section, curved section and second rod section, when installing other components, will not interfere with the normal movement of mechanical arm, reduces friction and abrasion, reduces the emergence of mechanical failure, also increases the functional diversity, cooperate design connecting portion and bearing seat simultaneously, can ensure the accurate control of mechanical arm when bending and stretching, also help dispersing the stress and load produced in the movement process of mechanical arm, improve the stability and durability of whole.

[0033] Therefore, in order to solve the above problems, it is necessary to optimize the structure of the mechanical arm, to improve its overall performance and application range. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 It is a front view structural schematic diagram of the rod piece for mechanical arm proposed in the utility model;

[0035] Figure 2 It is Figure 1 It is the bottom view structural schematic diagram of the structure shown;

[0036] Figure 3 It is Figure 1 It is the local amplification structural schematic diagram of A portion in the figure;

[0037] Figure 4 It is Figure 1 It is the local amplification structural schematic diagram of B portion in the figure;

[0038] LEGEND:

[0039] 1, rod body; 11, first rod section; 12, curved section; 13, second rod section; 2, connecting portion; 3, bearing seat; 4, weight reduction hole; 5, first recess; 6, second recess; 21, circular main body; 22, center hole; 23, positioning groove; 31, seat body; 32, outer ring; 33, inner ring; 34, bearing accommodating space; 35, through hole; 36, positioning port; 7, reinforcing rib; 8, bottom plate. DETAILED DESCRIPTION

[0040] Clearly and completely describe the technical scheme in the embodiments of the utility model with reference to the drawings in the embodiments of the utility model, obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skilled in the art without creative labor belong to the scope of the utility model protection.

[0041] Referring to Figures 1 to 4 The utility model provides a kind of pole for mechanical arm, including integrally-formed pole body 1, connecting portion 2, bearing seat 3.

[0042] The pole body 1 includes first pole section 11, second pole section 13 and curved section 12, the curved section 12 is located between first pole section 11 and second pole section 13, and the first pole section 11, second pole section 13 and curved section 12 are integrally forged into shape;

[0043] The connecting portion 2 is located at one end of the first pole section 11 away from the curved section 12.

[0044] The bearing seat 3 is located at one end of the second pole section 13 away from the curved section 12.

[0045] The pole body 1 is internally provided with at least one lightening hole 4.

[0046] The pole for mechanical arm provided by the utility model is integrally formed with the pole body 1, the connecting portion 2 and the bearing seat 3, the connecting portion 2 and the bearing seat 3 are movably connected with other components through connecting pieces, the pole body 1 is internally provided with the lightening hole 4, thereby reducing the overall weight of the pole, reducing the manufacturing cost of equipment, enabling the pole to be applied in some lightweight and high-precision occasions, facilitating installation and debugging, increasing the service life of the mechanical arm, the pole body 1 is provided with the first pole section 11, the curved section 12 and the second pole section 13, which will not interfere with the normal movement of the mechanical arm when other components are installed, reducing friction and wear, reducing the occurrence of mechanical failure, increasing functional diversity, and cooperating with the design of the connecting portion 2 and the bearing seat 3 to ensure accurate control of the mechanical arm during bending and stretching, helping to disperse stress and load generated during movement of the mechanical arm, and improving overall stability and durability.

[0047] In order to enhance the structural strength, the lightening hole 4 is at least three, and a reinforcing rib 7 is formed between every two adjacent lightening holes 4, and the pole body 1 is further provided with a bottom plate 8, so that the pole has higher support structural strength, is not easy to appear bending phenomenon, improves the working accuracy of the mechanical arm, and reduces safety hazards.

[0048] In order to increase the design flexibility and functional diversity, the length of the first rod segment 11 is less than the second rod segment 13, the shorter first rod segment 11 can be used to connect or support in a compact space, and the longer second rod segment 13 is used to achieve a longer connection or a larger range of motion, thereby improving the adaptability and flexibility of the overall structure; the length of the first rod segment 11 is less than the second rod segment 13, different force arm ratios are achieved, thereby changing the force transmission effect or motion trajectory; in addition, the shorter rod segment can use stronger materials or larger cross-sections to improve local strength, while the longer rod segment focuses on lightweight design to reduce overall weight and energy consumption.

[0049] In order to facilitate connection with the mechanical arm, the connecting part 2 includes a circular body 21, a central hole 22 is provided at the center position of the circular body 21, and a positioning groove 23 is provided on the inner side wall of the circular body 21; the bearing seat 3 is sequentially provided with a seat body 31, an outer ring 32 and an inner ring 33 from the outside to the inside along the radial direction, and an inner bearing accommodating space 34 is formed for installing bearings; a plurality of through holes 35 are provided on the outer ring 32; and a positioning port 36 is further provided on the inner side of the outer ring 32. The circular body 21 can be a groove or a protrusion. In actual application, the connecting part 2 is designed with the circular body 21, the central hole 22 and the positioning groove 23, which not only facilitates the installation and debugging of the mechanical arm connecting part, but also better fits the mechanical arm, increases the stability of the mechanical arm, and the positioning groove 23 is provided on the inner side wall of the circular body 21 to avoid deviation during installation of the connecting part; the bearing seat 3 is designed with the seat body 31, the outer ring 32, the inner ring 33 and the bearing accommodating space 34, which facilitates the installation, disassembly and maintenance of the bearings, a plurality of through holes 35 are provided on the outer ring to facilitate connection and fixation with other parts, and the positioning port 36 is provided on the inner side of the outer ring 32 to ensure accurate positioning of the bearings during installation, avoid deviation and shaking, and improve the motion accuracy and stability of the mechanical arm.

[0050] In order to simplify the installation process, the first recess 5 and the second recess 6 are provided on both sides of the connecting part between the bearing seat 3 and the second rod segment 13, and fixing holes are provided in the first recess 5 and the second recess 6. By providing the first recess 5, the second recess 6 and the fixing hole, other components can be stably installed at the connecting part between the bearing seat and the second rod segment, providing necessary support and positioning function, and installation personnel only need to place other components in the recess and fix them with appropriate threaded connections, without the need for complex positioning and calibration work, greatly simplifying the installation process and improving the installation efficiency and accuracy.

[0051] In order to improve the fastening degree of the rod and other components, the fixing hole is a threaded hole, which can ensure that other components are installed firmly and are not easy to loosen, thereby improving the stability and reliability of the overall structure.

[0052] In order to reduce the wear and tear, the bearing seat 3 is recessed from the side close to the base plate 8 to the side away from the base plate 8, and in practical application, the bearing seat 3 is recessed from the side close to the base plate 8 to the side away from the base plate 8, so that the thickness of the bearing seat 3 is smaller than the rod body 1, and when the bearing seat 3 is connected with the mechanical arm, the mechanical arm can avoid friction and collision during movement.

[0053] In order to adapt to different working environments, the included angle formed by the extension lines of the first rod segment 11 and the second rod segment 13 is 150-170°, the bending segment 12 arranged on the rod piece 1 provides sufficient space for other components to avoid interference or collision, so that the overall structure is more compact, and the limited space resources are effectively utilized; at the same time, the internal angle formed by the first rod segment 11 and the second rod segment 13 is 150-170°, which can not only ensure that the rod piece still has certain strength and rigidity after bending and meet the bearing requirements, but also can ensure that sufficient space is provided for other components, while avoiding excessive bending angle leading to stress concentration or structural failure.

[0054] Working principle: the rod piece for the mechanical arm provided by the utility model, by setting integrally formed rod body, connecting part and bearing seat, connecting part and bearing seat are respectively connected with other components through connecting piece, when the mechanical arm is telescopic, the telescopic of another component is controlled through the rod piece, so that the linkage effect is achieved, the lightening hole is designed in cooperation, and the rod piece can also be used in some light weight and high precision occasions. When multiple rod pieces are used in cooperation, because the bending segment is arranged, the normal movement of the mechanical arm is not interfered when other components are installed, the space is provided, so that the friction and wear are reduced, the mechanical failure is reduced, the functional diversity is increased, at the same time, the connecting part is arranged at the end of the first rod segment away from the bending segment, the connecting part can bear and transmit the force and movement from the first rod segment when the mechanical arm is bent and stretched, the accurate control of the mechanical arm is realized, the bearing seat is arranged at the end of the second rod segment away from the bending segment, the stress and load generated during the movement of the mechanical arm are dispersed, and the stability and durability of the whole are improved.

[0055] Finally, it should be pointed out that: the above only for preferred embodiments of the utility model, and does not limit the utility model, although the utility model is described in detail with reference to the foregoing embodiments, for the person skilled in the art, still can modify the technical scheme recorded in the foregoing each embodiment, or equivalent replacement is carried out to part of technical features, any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model, should be included in the protection scope of the utility model.

Claims

1. A link for a robot arm, characterized by The utility model relates to a kind of integrated rod body (1), connecting portion (2) and bearing seat (3);The rod body (1) includes first rod section (11), second rod section (13) and bending section (12), the bending section (12) is located between first rod section (11) and second rod section (13), and the first rod section (11), second rod section (13) and bending section (12) are integrally forged into shape;The connecting portion (2) is located at the end of first rod section (11) away from bending section (12);The bearing seat (3) is located at the end of second rod section (13) away from bending section (12);The rod body (1) is internally provided with at least one lightening hole (4). The lightening hole (4) is at least three, and reinforcing rib (7) is formed between every two adjacent lightening hole (4). The length of the first rod section (11) is less than the second rod section (13). The connecting portion (2) includes circular main body (21), and the center position of the circular main body (21) is provided with center hole (22), and the inner side wall of the circular main body (21) is provided with positioning groove (23). The bearing seat (3) is sequentially provided with seat body (31), outer ring (32) and inner ring (33) from outside to inside along its radial direction, and bearing accommodating space (34) for installing bearing is formed inside;A plurality of through holes (35) are provided on the outer ring (32);Positioning port (36) is further provided on the inner side of the outer ring (32). The bearing seat (3) is provided with first recess (5) and second recess (6) on both sides of the connecting portion, and fixed hole is formed in the first recess (5) and the second recess (6).

2. The link for a robot arm according to claim 1, characterized in that: The fixed hole is screw hole.

3. The link for a robot arm according to claim 2, characterized in that: The rod body (1) is further provided with bottom plate (8) on back.

4. The link for a robot arm according to claim 3, characterized in that: The side of the bearing seat (3) close to the bottom plate (8) is recessed to the side away from the bottom plate (8).

5. The link for a robot arm according to claim 4, characterized in that: The included angle formed by the extension line of the first rod section (11) and the second rod section (13) is 150°-170°.

6. The link for a robot arm according to claim 5, characterized in that: ​ 7. The link for a robot arm according to claim 6, characterized in that: ​ 8. The link for a robot arm according to any one of claims 1-7, characterized in that: ​ 9. The link for a robot arm according to claim 8, characterized in that: ​ 10. The link for a robot arm according to claim 9, characterized in that: ​

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