Gripping device on battery assembly line

Abstract

The utility model relates to the field of battery processing, in particular to a gripping device on a battery assembly line, which comprises a gripping mechanism, a clamping mechanism and an adjusting mechanism, the gripping mechanism and the clamping mechanism are used for clamping a battery, the adjusting mechanism is used for assisting the clamping mechanism to improve the clamping effect, the gripping mechanism is mounted on a mechanical arm, and the clamping mechanism is mounted on a clamping jaw of the gripping mechanism. The adjusting mechanism is installed in the clamping mechanism. By installing the adjusting mechanism between the grabbing mechanism and the clamping mechanism, when a battery is rapidly clamped, taken and placed, due to the fact that the specific gravity of the battery is large, falling force can be triggered by inertia caused by gravity at the moment that the battery is lifted, and then the battery is grabbed. At the moment, the battery can be further clamped by the first clamping block and the second clamping block through the falling force by utilizing the adjusting mechanism, and the falling force is determined by the weight factor of the battery, so that the damage of the battery shell caused by the too large clamping force can be avoided while the clamping can be ensured; and the safety in the clamping and moving processes and the appearance effect of the battery are improved.

Description

Technical Field

[0001] The utility model relates to the field of battery processing, in particular to a grabbing device on a battery assembly line. Background Art

[0002] The gripping devices on the battery assembly line are usually devices used to grip, move and position batteries or battery components. The design of these devices can vary according to specific production needs and battery types, but they usually include the following key functions and features: Grasping function: The gripping device can accurately grasp the battery or battery component in order to move it to the next workstation or process of the assembly line. Moving function: The gripping device is usually equipped with various motion systems, such as electric motors, pneumatic cylinders or linear guides, to achieve precise positioning and movement of the battery. Positioning function: In order to ensure the accurate positioning of the battery during the assembly process, the gripping device may be equipped with sensors, vision systems or other positioning devices to help accurately locate the position of the battery. Safety and stability: Since the battery may be heavy and requires precise operation during the assembly process, the gripping device must have sufficient safety and stability to prevent the battery from slipping or being damaged. Adaptability: A good gripping device should have a certain degree of adaptability and can be applied to batteries or battery components of different types, sizes and shapes. Automation integration: In an automated production line, the gripping device is usually integrated with other equipment, robots or automation systems to achieve a fully automated battery assembly process. In general, the gripping device on the battery assembly line is a device designed to achieve automation, precision and efficiency in the battery assembly process.

[0003] In contrast, a Chinese utility model with announcement number CN219563149U discloses a battery gripping device. Although a protective device is used to avoid bumps during movement, it is found in actual operation that due to the large specific gravity of the battery, in order to improve work efficiency, it is generally lifted instantly and then moved after clamping. The friction of the plastic shell of the battery is small, and it is found that there will be partial displacement. In addition, rapid movement is required during the movement process, and there is also centrifugal force. There is a risk of falling after the clamping parts are worn. Utility Model Content

[0004] The purpose of the utility model is to provide a grabbing device on a battery assembly line in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A gripping device on a battery assembly line, comprising a gripping mechanism and a clamping mechanism for clamping a battery and an adjusting mechanism for assisting the clamping mechanism to improve the clamping effect, wherein the gripping mechanism is mounted on a mechanical arm, the clamping mechanism is mounted on a claw of the gripping mechanism, and the adjusting mechanism is mounted inside the clamping mechanism;

[0007] The clamping mechanism comprises a fixing frame, a first clamping block and a second clamping block are mounted on the inner side of the fixing frame, and the second clamping block is located at the lower side of the first clamping block;

[0008] The adjusting mechanism includes a pulling piston rod and a cylinder. The cylinder is installed inside the fixed frame. A pulling piston rod is axially installed inside the cylinder. The upper end of the pulling piston rod is fixedly connected to the grabbing mechanism. The lower end of the pulling piston rod is connected to a piston. The piston is axially slidably connected to the inside of the cylinder. The upper space between the piston and the cylinder is filled with hydraulic oil. The cylinder is respectively provided with a first balancing cylinder and a second balancing cylinder corresponding to the sides of the first clamping block and the second clamping block. A locking assembly is arranged through the bottom of the pulling piston rod.

[0009] Preferably: the locking assembly of the pulling piston rod includes a locking rod, a groove for accommodating the locking rod is formed on the bottom surface of the pulling piston rod, and the upper end of the locking rod extends into the interior of the pulling piston rod, a limit block for resetting is arranged on the outside of the locking rod, an oblique groove for matching the limit block is formed inside the fixing frame, and a spring is installed between the outside of the locking rod and the fixing frame.

[0010] Preferably, the first balancing oil cylinder and the second balancing oil cylinder are communicated with the chamber inside the oil cylinder.

[0011] Preferably, the contact ends of the first clamping block, the second clamping block and the first balancing oil cylinder, the second balancing oil cylinder are made of copper, and the exposed end surfaces of the first clamping block, the second clamping block are made of hard rubber.

[0012] Preferably, the groove of the pulling piston rod corresponding to the locking rod is an elliptical groove, the cross section of the locking rod is elliptical, and the major axis of the locking rod is larger than the minor axis of the elliptical groove of the pulling piston rod and smaller than the major axis of the elliptical groove.

[0013] Preferably, an outer contour of the locking rod is formed with a pattern inclined upward.

[0014] Preferably, the grabbing mechanism further comprises a grabbing frame and a grabbing cylinder, wherein the grabbing cylinder is a bidirectional cylinder, the grabbing cylinder is mounted at the bottom of the grabbing frame, the clamping claw is arranged on the piston rod of the grabbing cylinder, and the grabbing cylinder is arranged in an even number.

[0015] Compared with the prior art, the beneficial effects are as follows:

[0016] By installing an adjustment mechanism between the grasping mechanism and the clamping mechanism, when the battery is clamped and placed quickly, because the battery has a large specific gravity, the inertia caused by gravity will trigger the downward force at the moment of lifting. At this time, the adjustment mechanism can use the downward force to make the first clamping block and the second clamping block further clamp the battery. Because the downward force is determined by the weight of the battery itself, it can ensure clamping while avoiding damage to the battery casing caused by excessive clamping force, thereby improving the safety of the clamping and moving process and the appearance of the battery itself. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a structural schematic diagram of a grabbing device on a battery assembly line described in the utility model;

[0019] Figure 2 This is a schematic diagram of the structure of a grabbing mechanism of a grabbing device on a battery assembly line described in the utility model;

[0020] Figure 3 This is a schematic diagram of the installation position structure of a fixing frame of a grabbing device on a battery assembly line described in the utility model;

[0021] Figure 4 It is a schematic diagram of the structure of the adjustment mechanism of the grabbing device on the battery assembly line of the utility model relative to the fixing frame;

[0022] Figure 5 It is a schematic diagram of the structure of the adjustment mechanism of a grabbing device on a battery assembly line described in the utility model;

[0023] Figure 6 It is a schematic diagram of the internal structure of the oil cylinder of a grabbing device on a battery assembly line described in the utility model;

[0024] Figure 7 It is a schematic diagram of the piston structure of a gripping device on a battery assembly line described in the utility model;

[0025] Figure 8 It is a schematic cross-sectional view of a locking rod of a gripping device on a battery assembly line described in the utility model.

[0026] The following are the descriptions of the reference numerals:

[0027] 1. Robotic arm; 2. Grabbing mechanism; 3. Clamping mechanism; 4. Adjusting mechanism; 21. Grabbing frame; 22. Grabbing cylinder; 23. Clamping claw; 31. Fixed frame; 32. First clamping block; 33. Second clamping block; 41. Pulling piston rod; 42. Cylinder; 43. Locking rod; 44. Release block; 45. First balancing cylinder; 46. Second balancing cylinder; 411. Piston. DETAILED DESCRIPTION

[0028] 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 an indirect connection 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 by specific circumstances.

[0029] The utility model is further described below in conjunction with the accompanying drawings:

[0030] like Figure 1-Figure 8 As shown, a gripping device on a battery assembly line includes a gripping mechanism 2 and a clamping mechanism 3 for clamping a battery and an adjusting mechanism 4 for assisting the clamping mechanism 3 to improve the clamping effect. The gripping mechanism 2 is mounted on a robot arm 1, the clamping mechanism 3 is mounted on a claw 23 of the gripping mechanism 2, and the adjusting mechanism 4 is mounted inside the clamping mechanism 3;

[0031] The clamping mechanism 3 includes a fixing frame 31, and a first clamping block 32 and a second clamping block 33 are installed on the inner side of the fixing frame 31, and the second clamping block 33 is located at the lower side of the first clamping block 32;

[0032] The adjusting mechanism 4 includes a pulling piston rod 41 and a cylinder 42. The cylinder 42 is installed inside the fixed frame 31. The pulling piston rod 41 is axially installed inside the cylinder 42. The upper end of the pulling piston rod 41 is fixedly connected to the grabbing mechanism 2. The lower end of the pulling piston rod 41 is connected to a piston 411. The piston 411 is axially slidably connected inside the cylinder 42. The upper space between the piston 411 and the cylinder 42 is filled with hydraulic oil. The first balancing cylinder 45 and the second balancing cylinder 46 are respectively installed on the sides of the cylinder 42 corresponding to the first clamping block 32 and the second clamping block 33. A locking assembly is arranged through the bottom of the pulling piston rod 41.

[0033] In this embodiment, if Figure 6 , Figure 7As shown, the locking assembly of the pulling piston rod 41 includes a locking rod 43, a groove for accommodating the locking rod 43 is formed on the bottom surface of the pulling piston rod 41, and the upper end of the locking rod 43 extends into the pulling piston rod 41, a limit block for resetting is arranged on the outside of the locking rod 43, an inclined groove for matching the limit block is formed inside the fixing frame 31, and a spring is installed between the outside of the locking rod 43 and the fixing frame 31, so that the locking rod 43 does not lock the pulling piston rod 41 in the initial position, and is locked only during lifting.

[0034] In this embodiment, if Figure 6 As shown, the first balancing oil cylinder 45 and the second balancing oil cylinder 46 are connected to the chamber inside the oil cylinder 42, ensuring that the pressures therein are the same.

[0035] In this embodiment, the contact ends of the first clamping block 32 and the second clamping block 33 with the first balancing oil cylinder 45 and the second balancing oil cylinder 46 are made of copper, and the exposed end surfaces of the first clamping block 32 and the second clamping block 33 are made of hard rubber.

[0036] In this embodiment, if Figure 7 , Figure 8 As shown, the groove of the pulling piston rod 41 corresponding to the locking rod 43 is an elliptical groove, the cross-section of the locking rod 43 is an elliptical shape, and the major axis of the locking rod 43 is larger than the minor axis of the elliptical groove of the pulling piston rod 41 and smaller than the major axis of the elliptical groove.

[0037] In this embodiment, a pattern inclined upward is formed on the outer contour of the locking rod 43 .

[0038] In this embodiment, if Figure 2 As shown, the grabbing mechanism 2 also includes a grabbing frame 21 and a grabbing cylinder 22. The grabbing cylinder 22 is a bidirectional cylinder. The grabbing cylinder 22 is installed at the bottom of the grabbing frame 21. The claw 23 is arranged on the piston rod of the grabbing cylinder 22. The grabbing cylinder 22 is arranged in an even number.

[0039] Working principle: By controlling the robot arm 1 to move the grasping mechanism 2 and the clamping mechanism 3 to the outside of the battery, the grasping cylinder 22 is controlled to tighten the claws 23 to clamp the battery, and the clamping force of the grasping cylinder 22 itself is used to effectively clamp the battery preliminarily;

[0040] When the control robot arm 1 is lifted, at the moment of lifting, due to the weight of the battery itself, a falling force is generated, and the fixing frame 31 is driven to fall. At the moment when the fixing frame 31 falls, the pulling piston rod 41 is pulled out from the inside of the oil cylinder 42, and the oil between the piston 411 and the oil cylinder 42 is compressed, and is transmitted from the first balancing oil cylinder 45 and the second balancing oil cylinder 46 to the first clamping block 32 and the second clamping block 33, so that the first clamping block 32 and the second clamping block 33 are extended again to further clamp the battery. 6. The oil inside the oil cylinder 42 is interconnected, and the pressure is interconnected, so that the first clamping block 32 and the second clamping block 33 can adapt to the contour of the battery and clamp, while ensuring that the clamping force of the first clamping block 32 and the second clamping block 33 is the same. After the pulling piston rod 41 is lifted, the pattern on the outside of the locking rod 43 is frictionally matched with the inner hole of the pulling piston rod 41. After the pulling piston rod 41 and the locking rod 43 are staggered, the torsional force provided to the locking rod 43 by the pattern and the spring is used to fix the position of the pulling piston rod 41, thereby avoiding fluctuations during the grabbing and moving process;

[0041] When it is necessary to lower the bracket 31, the release block 44 is pressed into the inside of the fixing bracket 31, and the release block 44 drives the locking rod 43 to rotate, pulling the piston rod 41 to lose the locking force of the locking rod 43. At the same time, the fixing bracket 31 moves upward due to the pressure from the bottom surface, pulling the piston rod 41 back into the inside of the oil cylinder 42 again, waiting for the next clamping work.

[0042] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A grabbing device on a battery assembly line, characterized in that: The invention comprises a grasping mechanism (2) and a clamping mechanism (3) for clamping a battery, and an adjusting mechanism (4) for assisting the clamping mechanism (3) to improve the clamping effect, wherein the grasping mechanism (2) is mounted on a mechanical arm (1), the clamping mechanism (3) is mounted on a claw (23) of the grasping mechanism (2), and the adjusting mechanism (4) is mounted inside the clamping mechanism (3); The clamping mechanism (3) comprises a fixing frame (31), a first clamping block (32) and a second clamping block (33) are mounted on the inner side of the fixing frame (31), and the second clamping block (33) is located at the lower side of the first clamping block (32); The adjusting mechanism (4) comprises a pulling piston rod (41) and an oil cylinder (42). The oil cylinder (42) is installed inside the fixing frame (31). The pulling piston rod (41) is axially installed inside the oil cylinder (42). The upper end of the pulling piston rod (41) is fixedly connected to the grabbing mechanism (2). The lower end of the pulling piston rod (41) is connected to a piston (411). The piston (411) is axially slidably connected inside the oil cylinder (42). The upper space between the piston (411) and the oil cylinder (42) is filled with hydraulic oil. The oil cylinder (42) is respectively installed with a first balancing oil cylinder (45) and a second balancing oil cylinder (46) on the sides corresponding to the first clamping block (32) and the second clamping block (33). A locking assembly is provided through the bottom of the pulling piston rod (41).

2. The gripping device on a battery assembly line according to claim 1, characterized in that: The locking assembly of the pulling piston rod (41) includes a locking rod (43), a groove for accommodating the locking rod (43) is formed on the bottom surface of the pulling piston rod (41), and the upper end of the locking rod (43) extends into the interior of the pulling piston rod (41), a limit block for resetting is arranged on the outside of the locking rod (43), an inclined groove for matching the limit block is formed inside the fixing frame (31), and a spring is installed between the outside of the locking rod (43) and the fixing frame (31).

3. The gripping device on a battery assembly line according to claim 2, characterized in that: The first balancing oil cylinder (45) and the second balancing oil cylinder (46) are in communication with the chamber inside the oil cylinder (42).

4. The gripping device on a battery assembly line according to claim 1, characterized in that: The contact ends of the first clamping block (32) and the second clamping block (33) with the first balancing oil cylinder (45) and the second balancing oil cylinder (46) are made of copper, and the exposed end surfaces of the first clamping block (32) and the second clamping block (33) are made of hard rubber.

5. The gripping device on a battery assembly line according to claim 2, characterized in that: The groove of the pulling piston rod (41) corresponding to the locking rod (43) is an elliptical groove, the cross-section of the locking rod (43) is elliptical, and the major axis of the locking rod (43) is larger than the minor axis of the elliptical groove of the pulling piston rod (41) and smaller than the major axis of the elliptical groove.

6. The gripping device on a battery assembly line according to claim 5, characterized in that: The outer contour of the locking rod (43) is formed with an upwardly inclined pattern.

7. The gripping device for a battery assembly line according to claim 1, characterized in that: The grabbing mechanism (2) further comprises a grabbing frame (21) and a grabbing cylinder (22). The grabbing cylinder (22) is a bidirectional cylinder. The grabbing cylinder (22) is mounted on the bottom of the grabbing frame (21). The clamping claw (23) is arranged on the piston rod of the grabbing cylinder (22). The grabbing cylinder (22) is arranged in an even number.

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