Profile clamp for mechanical arm and mechanical arm assembly

Abstract

The utility model provides a section bar clamp for a mechanical arm and a mechanical arm assembly, and relates to the field of section bar processing, and adopts the technical scheme that the section bar clamp comprises a support frame, a clamping assembly is arranged on the support frame, the clamping assembly comprises a movable clamping plate and a fixed clamping plate, the movable clamping plate is connected with a driving assembly, the movable clamping plate is movably arranged on the support frame, and the fixed clamping plate is connected with the driving assembly. The fixed clamping plate and the driving assembly are both arranged on the supporting frame, the driving assembly comprises a first-stage air cylinder and a second-stage air cylinder, a piston rod of the first-stage air cylinder is connected with the supporting frame, the front end of a cylinder body of the first-stage air cylinder is connected with a movable seat, and the movable seat is movably arranged on the supporting frame and connected with a piston rod of the second-stage air cylinder. A mounting base is arranged at the front end of a cylinder body of the second-stage air cylinder and connected with the movable clamping plate. The size of the profile clamp can be reduced, interference is avoided, and the use requirement of a wide profile is met.

Description

Technical Field

[0001] The utility model relates to the field of profile processing, in particular to a profile clamp for a robotic arm and a robotic arm assembly. Background Art

[0002] As a commonly used metal material, profiles are widely used in industries, agriculture, construction and other fields closely related to our production and life. In order to ensure the stable transportation of profiles on the production line or when different surfaces of profiles need to be processed, the profiles need to be flipped. Generally, manual flipping and clamping are used, which does not meet the requirements of automated production and results in low processing efficiency.

[0003] A robotic arm is a complex system with high precision, multiple inputs and outputs, high nonlinearity and strong coupling, and has the ability to simulate the movement of a human arm and can perform actions such as stretching, rotating and grasping. In the prior art, a robotic arm is often used to replace manual flipping operations. Specifically, a clamping unit is arranged at the end of the robotic arm, and clamping is achieved by controlling the actions of the clamping unit, and the actions and postures of the robotic arm are controlled to perform operations such as feeding, flipping and discharging, greatly improving the automation level of profile production.

[0004] With the above technical solutions, as profiles are increasingly widely used, their structures and dimensions are constantly changing. When the profile size is relatively wide, a larger opening and closing stroke of the clamping unit is required, which requires a larger working stroke of the driving component on the clamping unit, resulting in a larger size of the driving component and a larger size of the profile clamp. When the robotic arm flips the profile, interference is likely to occur, limiting the application of the robotic arm in profile production. Summary of the Utility Model

[0005] In order to solve the technical problem of interference of the driving component when flipping profiles by a robotic arm in the above prior art, the utility model provides a profile clamp for a robotic arm and a robotic arm assembly, which can reduce the size of the profile clamp, avoid interference and meet the use requirements of profiles with relatively wide sizes.

[0006] In a first aspect, the present utility model provides a profile clamp for a robotic arm and a robotic arm assembly to solve the above technical problems. The profile clamp includes a support frame, on which a clamping assembly is provided. The clamping assembly includes a movable clamping plate and a fixed clamping plate. The movable clamping plate is connected to a driving assembly. The movable clamping plate is movably arranged on the support frame. The fixed clamping plate and the driving assembly are both arranged on the support frame. The driving assembly includes a first-stage cylinder and a second-stage cylinder. The piston rod of the first-stage cylinder is connected to the support frame. The front end of the cylinder block of the first-stage cylinder is connected to a movable seat. The movable seat is movably arranged on the support frame. The movable seat is connected to the piston rod of the second-stage cylinder. The front end of the cylinder block of the second-stage cylinder is provided with a mounting seat. The mounting seat is connected to the movable clamping plate.

[0007] By using a series-connected first-stage cylinder and second-stage cylinder to replace a driving cylinder with a large stroke, and at the same time adopting a side-by-side installation form, the present utility model can greatly shorten the space occupied by the driving assembly in its stroke direction, reduce the size of the profile clamp, and ensure a large clamping range, meeting the use requirements of wider profiles.

[0008] Further, friction-increasing blocks are provided on the opposite surfaces of the fixed clamping plate and the movable clamping plate.

[0009] Further, the clamping assembly further includes two clamping jaws, and the two clamping jaws are rotatably arranged on the movable clamping plate and the fixed clamping plate.

[0010] By providing two clamping jaws, the present utility model can realize the clamping and limiting of the profile from a second direction, prevent the profile from slipping or even falling off during the processes of transportation and flipping, and meet the use requirements of profiles with a relatively large weight.

[0011] Further, the middle parts of the two clamping jaws are respectively connected to the movable clamping plate and the fixed clamping plate through hinge seats, and the ends of the clamping jaws are rotatably connected to clamping cylinders, and the two clamping cylinders are rotatably arranged on the movable clamping plate and the fixed clamping plate.

[0012] Further, at least two groups of the clamping assemblies are provided, and the two groups of clamping assemblies are respectively arranged at both ends of the support frame.

[0013] In a second aspect, the present utility model further provides a robotic arm assembly, including a robotic arm body, including the above-mentioned profile clamp for a robotic arm. The support frame is arranged at the end of the robotic arm body. It further includes a walking track, and the length direction of the walking track is consistent with the profile conveying direction. The robotic arm body is movably arranged on the walking track.

[0014] By movably arranging the robotic arm body, the robotic arm body can perform loading, flipping, and unloading operations for multiple machine tools on the production line, thereby improving its utilization rate.

[0015] Furthermore, the robotic arm body is a six-axis robotic arm.

[0016] From the above technical solutions, it can be seen that the present utility model has the following advantages:

[0017] The present utility model provides a profile fixture and a robotic arm assembly for a robotic arm. By using a series-connected first-stage cylinder and second-stage cylinder to replace a large-stroke driving cylinder, and at the same time adopting a side-by-side installation form, it is possible to greatly shorten the space occupied by the driving component in its stroke direction, reduce the size of the profile fixture, and ensure a large clamping range, meeting the usage requirements of wider profiles; by providing two jaws, it is possible to achieve clamping and limiting of the profile from a second direction, preventing the profile from slipping or even falling off during transportation and flipping, meeting the usage requirements of heavier profiles; by movably arranging the robotic arm body, the robotic arm body can perform loading, flipping, and unloading operations for multiple machine tools on the production line, thereby improving its utilization rate. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present utility model, the drawings required for description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 Structural schematic diagram of the first specific embodiment of the present utility model Figure 1 。

[0020] Figure 2 Structural schematic diagram of the first specific embodiment of the present utility model Figure 2 。

[0021] Figure 3 Structural schematic diagram of the second specific embodiment of the present utility model.

[0022] In the figure, 1, support frame; 101, connecting seat; 2, clamping assembly; 201, moving clamping plate; 202, jaw; 203, clamping cylinder; 205, friction-increasing block; 206, fixed clamping plate; 207, second-stage cylinder; 208, first-stage cylinder; 209, moving seat; 210, mounting seat; 3, robotic arm body; 4, walking track. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, the technical solutions in the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the specific embodiments. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in this patent, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of this patent. Specific Embodiment 1

[0025] As Figure 1 and Figure 2 shown, this specific embodiment provides a profile clamp for a robotic arm and a robotic arm assembly, including a support frame 1. A clamping assembly 2 is provided on the support frame 1. The clamping assembly 2 includes a movable clamping plate 201 and a fixed clamping plate 206. The movable clamping plate 201 is connected to a driving assembly. The movable clamping plate 201 is movably arranged on the support frame 1 through a guide rail. The fixed clamping plate 206 and the driving assembly are both arranged on the support frame 1. The driving assembly includes a first-stage cylinder 208 and a second-stage cylinder 207. The piston rod of the first-stage cylinder 208 is connected to the support frame 1. The front end of the cylinder block of the first-stage cylinder 208 is connected to a movable seat 209. The movable seat 209 is movably arranged on the support frame 1 through a guide rail. The movable seat 209 is connected to the piston rod of the second-stage cylinder 207. The front end of the cylinder block of the second-stage cylinder 207 is provided with a mounting seat 210. The mounting seat 210 is connected to the movable clamping plate 201.

[0026] In this specific embodiment, by using two first-stage cylinders 208 and second-stage cylinders 207 with smaller strokes connected in series instead of a driving cylinder with a large stroke, and at the same time adopting a side-by-side arrangement form, the space occupied by the driving assembly in its stroke direction can be greatly shortened, the size of the profile clamp is reduced, and a large clamping range is ensured, meeting the use requirements of wider profiles.

[0027] As Figure 1 and Figure 2As shown, in this specific embodiment, friction - increasing blocks 205 are provided on the opposite surfaces of the fixed clamping plate 206 and the movable clamping plate 201. The friction - increasing blocks 205 are made of rubber material and have grooves on the surface, greatly increasing the friction force with the profile. To further increase the friction force and prevent the slippage of larger - sized profiles from affecting the clamping accuracy or even causing production accidents due to falling off, the clamping assembly 2 further includes two clamping jaws 202. The two clamping jaws 202 are rotatably arranged on the movable clamping plate 201 and the fixed clamping plate 206. The clamping jaws 202 are in an L - shaped structure. The middle parts of the two clamping jaws 202 are respectively connected to the movable clamping plate 201 and the fixed clamping plate 206 through hinge seats. The ends of the clamping jaws 202 are rotatably connected to clamping cylinders 203, and the two clamping cylinders 203 are rotatably arranged on the movable clamping plate 201 and the fixed clamping plate 206. The clamping jaws 202 can abut against the surface of the profile, and this surface is perpendicular to the surface clamped by the movable clamping plate 201 and the fixed clamping plate 206, and can realize the clamping and limiting of the profile from the second direction.

[0028] As Figure 1 and Figure 2 shown, at least two sets of clamping assemblies 2 are provided. In this specific embodiment, two sets of clamping assemblies 2 are provided.

[0029] As Figure 2 shown, a connecting seat 101 is further provided on the support frame 1, and the connecting seat 101 is used to connect with the robotic arm body 3.

[0030] During operation, when the first - stage cylinder 208 moves out, its cylinder body drives the moving seat 209 to move, and the moving seat 209 drives the second - stage cylinder 207 to move. When the second - stage cylinder 207 moves out, it drives the movable clamping plate 201 away from the fixed clamping plate 206 to open the profile clamp. The first - stage cylinder 208 and the second - stage cylinder 207 can move out simultaneously. Then, the first - stage cylinder 208 and the second - stage cylinder 207 retract simultaneously, and the movable clamping plate 201 approaches the profile until the profile is clamped. Specific Embodiment Two

[0032] As Figure 3 shown, this specific embodiment provides a robotic arm assembly, including a robotic arm body 3, including the profile clamp for the robotic arm in Specific Embodiment One. The support frame 1 is arranged at the end of the robotic arm body 3. It further includes a walking track 4. The length direction of the walking track 4 is consistent with the profile conveying direction. The robotic arm body 3 is movably arranged on the walking track 4, and the robotic arm body 3 is a six - axis robotic arm.

[0033] In this specific embodiment, by arranging the robotic arm body 3 to be movable, the robotic arm body 3 can load, flip, and unload materials for multiple machine tools on the production line, improving its utilization rate.

[0034] It can be seen from the above specific embodiments that the utility model has the following beneficial effects:

[0035] 1. By using the first-stage cylinder 208 and the second-stage cylinder 207 connected in series to replace the driving cylinder with a large stroke, and at the same time adopting the installation form arranged side by side, the space occupied by the driving component in its stroke direction can be greatly shortened, the size of the profile fixture is reduced, and a large clamping range is ensured, meeting the use requirements of wider profiles;

[0036] 2. By arranging two clamping jaws 202, the clamping and limiting of the profile can be realized from the second direction, preventing the profile from slipping or even falling off during the processes of transportation and flipping, meeting the use requirements of profiles with a larger weight;

[0037] 3. By making the manipulator body 3 movable, the manipulator body 3 can feed, flip and unload for multiple machine tools on the production line, improving its utilization rate.

[0038] The above description of the disclosed embodiments enables those skilled in the art to implement or use the utility model. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the utility model. Therefore, the utility model will not be limited to these embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A profile fixture for a robotic arm, comprising a support frame (1), characterized in that, A clamping assembly (2) is provided on the support frame (1). The clamping assembly (2) includes a movable clamping plate (201) and a fixed clamping plate (206). The movable clamping plate (201) is connected to a driving assembly. The movable clamping plate (201) is movably arranged on the support frame (1). The fixed clamping plate (206) and the driving assembly are both arranged on the support frame (1). The driving assembly includes a first-stage cylinder (208) and a second-stage cylinder (207). The piston rod of the first-stage cylinder (208) is connected to the support frame (1). The front end of the cylinder block of the first-stage cylinder (208) is connected to a movable seat (209). The movable seat (209) is movably arranged on the support frame (1). The movable seat (209) is connected to the piston rod of the second-stage cylinder (207). The front end of the cylinder block of the second-stage cylinder (207) is provided with a mounting seat (210). The mounting seat (210) is connected to the movable clamping plate (201).

2. The profile fixture for the robotic arm according to claim 1, characterized in that, Friction-increasing blocks (205) are provided on the opposite surfaces of the fixed clamping plate (206) and the movable clamping plate (201).

3. The profile fixture for a robotic arm according to claim 1, characterized in that, The clamping assembly (2) further includes two clamping jaws (202). The two clamping jaws (202) are rotatably arranged on the movable clamping plate (201) and the fixed clamping plate (206).

4. The profile fixture for a robotic arm according to claim 3, characterized in that, The middle parts of the two clamping jaws (202) are connected to the movable clamping plate (201) and the fixed clamping plate (206) through hinge seats. The ends of the clamping jaws (202) are rotatably connected to clamping cylinders (203). The two clamping cylinders (203) are rotatably arranged on the movable clamping plate (201) and the fixed clamping plate (206).

5. The profile fixture for the robotic arm according to claim 4, characterized in that, At least two groups of the clamping assemblies (2) are provided. The two groups of clamping assemblies (2) are respectively arranged at both ends of the support frame (1).

6. A robotic arm assembly, comprising a robotic arm body (3), characterized in that, It includes the profile fixture for a robotic arm as described in claim 5. The support frame (1) is arranged at the end of the robotic arm body (3). It further includes a walking track (4). The length direction of the walking track (4) is consistent with the profile conveying direction. The robotic arm body (3) is movably arranged on the walking track (4).

7. The robotic arm assembly according to claim 6, characterized in that, The robotic arm body (3) is a six-axis robotic arm.

Images