Flexible clamping arm for shell assembly

Abstract

The utility model relates to the technical field of clamping arms, and particularly discloses a flexible clamping arm for shell assembly, which comprises a workbench, an assembly table is arranged on the workbench; the driving assembly is arranged on the workbench; the clamping assembly is arranged on the driving assembly; the clamping assembly comprises a clamping box; firstly, a worker drives a two-way lead screw to rotate, the two-way lead screw can drive a moving block to move when rotating, and a flexible clamping plate can be driven to move towards the middle of a clamping box in the moving process of the moving block; at the moment, a first mechanical arm and a second mechanical arm in the driving assembly can drive a clamping box to move towards the part, the part is clamped through the clamping box in the moving process, assembling work is achieved through the first mechanical arm and the second mechanical arm after clamping, and the clamping assembly is driven to clamp the part in a physical driving mode such as a bidirectional lead screw. And leakage and other phenomena caused by pneumatic driving are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of clamping arms, in particular to a flexible clamping arm for shell assembly. Background Art

[0002] With the development of society, the application of robotic arms has become more and more extensive. Due to its unique operational flexibility, it has been widely used in industrial assembly, safety and explosion-proof and other fields. Flexible robotic arms refer to the ability of the fixture to adapt to changes in the shape and size of the workpiece and continue to be used.

[0003] Patent No. 201922502200.8 discloses a flexible manipulator grasping device, including: multiple flexible manipulator fingers, multiple clamping plates, flexible manipulator arms and pneumatic mechanisms, multiple flexible manipulator fingers are all installed on the same side of the flexible manipulator arm, multiple flexible manipulator fingers are arranged circumferentially at intervals, a hard ball head is provided on one side of the flexible manipulator finger away from the flexible manipulator arm toward the center of the multiple flexible manipulator fingers, the clamping plate includes a first side surface and a second side surface opposite to each other, the first side surface of the clamping plate is provided with a spherical groove for accommodating the hard ball head, the hard ball heads of the multiple flexible manipulator fingers are installed one by one in the spherical grooves of the multiple clamping plates, an inner cavity is provided in the flexible manipulator finger, the pneumatic mechanism is installed on the flexible manipulator arm, and the pneumatic mechanism is connected to the inner cavity respectively. The utility model can increase the friction between the object to be clamped, prevent the clamped object from falling, and can adapt to cylindrical objects of different shapes and sizes.

[0004] In the prior art, the clamping mechanism of the flexible robotic arm is mostly driven by a pneumatic device, but the pneumatic device may leak after long-term use, resulting in insufficient driving force or shaking during driving, which will affect the clamping of the parts and may cause the parts to fall when being clamped. Utility Model Content

[0005] The purpose of the utility model is to provide a flexible clamping arm for housing assembly to solve the following technical problems:

[0006] (1) How to prevent parts from falling when clamping.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A flexible clamping arm for housing assembly, comprising a workbench; an assembly table is arranged on the workbench; and the flexible clamping arm further comprises:

[0009] A driving assembly is arranged on the workbench; the driving assembly comprises a first mechanical arm and a second mechanical arm;

[0010] A clamping assembly disposed on the driving assembly;

[0011] The clamping assembly includes a clamping box; a bidirectional screw is rotatably connected in the clamping box; the bidirectional screw is driven to rotate by power; a moving block is threadedly connected to the bidirectional screw; a flexible clamping plate is fixedly connected to the bottom of the moving block; four groups of bidirectional screws are provided.

[0012] Furthermore, the first mechanical arm is hingedly connected to the second mechanical arm; a connecting column is hingedly connected to the end of the second mechanical arm; a fixed plate is fixedly connected to the end of the connecting column; a rotating shaft is rotatably connected to the bottom of the fixed plate; a crown gear is fixedly connected to the end of the rotating shaft; a fixing column is fixedly connected to the bottom of the crown gear; the fixing column is fixedly connected to the clamping box; a driving gear is fixedly connected to the bidirectional screw rod; and the crown gear is meshingly connected to the driving gear.

[0013] Furthermore, the workbench is fixedly connected to a fixed base; the fixed base is rotatably connected to a turntable; the surface of the turntable is fixedly connected to a connecting plate; and the connecting plate is hinged to the first mechanical arm.

[0014] Furthermore, a conveyor belt is rotatably connected to the workbench; and the assembly table is arranged in a rectangular shape.

[0015] Furthermore, the driving assembly and the clamping assembly are both driven by a motor.

[0016] Furthermore, the flexible clamping plate is made of rubber.

[0017] Furthermore, a support leg is fixedly connected to the bottom of the workbench; and a rubber pad is fixedly connected to the bottom of the support leg.

[0018] Beneficial effects of the utility model:

[0019] (1) The utility model realizes the clamping of parts through a clamping assembly. First, the staff drives the bidirectional screw to rotate. When the bidirectional screw rotates, it drives the moving block to move. During the movement of the moving block, it drives the flexible clamping plate to move toward the middle of the clamping box. At this time, the first mechanical arm and the second mechanical arm in the driving assembly drive the clamping box to move toward the part. During the movement, the clamping box is used to clamp the part. After clamping, the first mechanical arm and the second mechanical arm are used to realize the assembly work. The clamping assembly is driven by physical driving methods such as bidirectional screws to clamp the parts, thereby avoiding leakage caused by pneumatic drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The utility model will be further described below in conjunction with the accompanying drawings.

[0021] Figure 1 It is a schematic diagram of the overall structure of the workbench in the utility model;

[0022] Figure 2 It is a schematic diagram of the overall structure of the clamping assembly and the driving assembly in the utility model;

[0023] Figure 3 It is a schematic diagram of the overall structure of the clamping assembly in the utility model;

[0024] Figure 4 It is a cross-sectional view of the overall structure of the clamping assembly in the utility model;

[0025] Figure 5 It is a front view of the workbench in the utility model.

[0026] Figure numerals: 1. workbench; 2. drive assembly; 21. fixed base; 22. turntable; 23. connecting plate; 24. first robotic arm; 25. second robotic arm; 3. conveyor belt; 4. assembly table; 5. support leg; 51. rubber pad; 6. clamping assembly; 61. connecting column; 62. fixed plate; 63. rotating shaft; 64. crown gear; 641. fixed column; 65. clamping box; 66. bidirectional screw rod; 67. drive gear; 68. moving block; 69. flexible clamping plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Please refer to the attached picture Figure 1 - Figure 5 As shown, a flexible clamping arm for assembling a shell in an embodiment of the utility model comprises a workbench 1; an assembly table 4 is arranged on the workbench 1; and further comprises: a driving assembly 2 arranged on the workbench 1; a clamping assembly 6 arranged on the driving assembly 2; the clamping assembly 6 comprises a clamping box 65; a bidirectional screw rod 66 is rotatably connected in the clamping box 65; the bidirectional screw rod 66 is driven to rotate by power; a moving block 68 is threadedly connected to the bidirectional screw rod 66; a flexible clamping plate 69 is fixedly connected to the bottom of the moving block 68; the bidirectional screw rod 66 is provided with four groups;

[0029] During operation, the clamping mechanism of the flexible robotic arm is mostly driven by a pneumatic device, but the pneumatic device will leak after long-term use, resulting in insufficient driving force or shaking during driving, which will affect the clamping of parts and may cause the parts to fall when being clamped. In order to prevent such incidents from happening, first, the staff drives the two-way screw 66 to rotate. The two-way screw 66 will drive the moving block 68 to move when rotating. During the movement of the moving block 68, the flexible clamping plate 69 will move toward the middle of the clamping box 65. At this time, the first robotic arm 24 and the second robotic arm 25 in the driving component 2 will drive the clamping box 65 to move toward the part. During the movement, the clamping box 65 is used to clamp the part. After clamping, the first robotic arm 24 and the second robotic arm 25 are used to realize assembly work. The clamping component 6 is driven by physical driving methods such as the two-way screw 66 to clamp the parts, thereby avoiding leakage caused by pneumatic drive.

[0030] like Figure 2 - Figure 4 As shown, the first mechanical arm 24 is hingedly connected to the second mechanical arm 25; the second mechanical arm 25 is hingedly connected to a connecting column 61 at the end; the connecting column 61 is fixedly connected to a fixing plate 62 at the end; the fixing plate 62 is rotatably connected to a rotating shaft 63 at the bottom; the end of the rotating shaft 63 is fixedly connected to a crown gear 64; the bottom of the crown gear 64 is fixedly connected to a fixing column 641; the fixing column 641 is fixedly connected to the clamping box 65; the bidirectional screw rod 66 is fixedly connected to a driving gear 67; the crown gear 64 is meshedly connected to the driving gear 67;

[0031] During operation, when it is necessary to clamp the parts, the rotating shaft 63 drives the crown gear 64 to rotate, and when rotating, the teeth on the crown gear 64 drive the four sets of driving gears 67 to rotate, thereby driving the four sets of bidirectional screw rods 66 to rotate. When the four sets of bidirectional screw rods 66 rotate, they can simultaneously drive the four sets of flexible clamping plates 69 to move closer to the middle of the clamping box 65, clamp the parts in the process of moving closer, and then move the parts to the assembly position for assembly through the driving component 2.

[0032] like Figure 2 As shown, a fixed base 21 is fixedly connected to the workbench 1; a turntable 22 is rotatably connected to the fixed base 21; a connecting plate 23 is fixedly connected to the surface of the turntable 22; the connecting plate 23 is hinged to the first mechanical arm 24;

[0033] During operation, the first mechanical arm 24 and the second mechanical arm 25 are fixedly connected to the workbench 1 through the fixed base 21, and then the first mechanical arm 24 and the second mechanical arm 25 can be driven to rotate through the turntable 22, and then the hinges are used to drive the parts to the assembly site for assembly.

[0034] like Figure 1As shown, a conveyor belt 3 is rotatably connected to the workbench 1; the assembly table 4 is rectangular;

[0035] During operation, the parts are transported to the workbench 1 by the conveyor belt 3, and then the parts are clamped by the clamping assembly 6, and then the parts are moved to the assembly table 4 for assembly by the driving assembly 2.

[0036] like Figure 1 As shown, the driving assembly 2 and the clamping assembly 6 are both driven by a motor;

[0037] During operation, the first mechanical arm 24 and the second mechanical arm 25 in the driving assembly 2 and the crown gear 64 in the clamping assembly 6 are all driven by a motor, which is not shown in the figure.

[0038] like Figure 2 As shown, the flexible clamping plate 69 is made of rubber;

[0039] When working, the flexible clamping plate 69 is made of flexible rubber material and can clamp parts of different shapes.

[0040] like Figure 1 As shown, a support leg 5 is fixedly connected to the bottom of the workbench 1; a rubber pad 51 is fixedly connected to the bottom of the support leg 5;

[0041] During operation, the workbench 1 may shake, and the support legs 5 can alleviate the shaking, and the rubber pads 51 can prevent the support legs 5 from slipping.

[0042] Working principle of the utility model: the clamping mechanism of the flexible robotic arm is mostly driven by a pneumatic device, but the pneumatic device will leak after long-term use, resulting in insufficient driving force or shaking during driving, which will affect the clamping of parts and may cause the parts to fall off when being clamped. In order to prevent such incidents from happening, first, the staff drives the two-way screw 66 to rotate. The two-way screw 66 will drive the moving block 68 to move when rotating. During the movement of the moving block 68, the flexible clamping plate 69 will be driven to move toward the middle of the clamping box 65. At this time, the first robotic arm 24 and the second robotic arm 25 in the driving component 2 will drive the clamping box 65 to move toward the part. During the movement, the clamping box 65 is used to clamp the part. After clamping, the first robotic arm 24 and the second robotic arm 25 are used to realize assembly work. The clamping component 6 is driven by physical driving methods such as the two-way screw 66 to clamp the parts, thereby avoiding leakage caused by pneumatic drive.

[0043] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A flexible clamping arm for housing assembly, comprising a workbench (1); an assembly table (4) is arranged on the workbench (1); the characteristics are: Also includes: A driving assembly (2) disposed on a workbench (1); the driving assembly (2) comprises a first mechanical arm (24) and a second mechanical arm (25); A clamping assembly (6) disposed on the driving assembly (2); The clamping assembly (6) comprises a clamping box (65); a bidirectional screw rod (66) is rotatably connected inside the clamping box (65); the bidirectional screw rod (66) is driven to rotate by power; a moving block (68) is threadedly connected to the bidirectional screw rod (66); a flexible clamping plate (69) is fixedly connected to the bottom of the moving block (68); and four groups of the bidirectional screw rods (66) are provided.

2. A flexible clamping arm for housing assembly according to claim 1, characterized in that: The first mechanical arm (24) is hingedly connected to the second mechanical arm (25); a connecting column (61) is hingedly connected to the end of the second mechanical arm (25); a fixed plate (62) is fixedly connected to the end of the connecting column (61); a rotating shaft (63) is rotatably connected to the bottom of the fixed plate (62); a crown gear (64) is fixedly connected to the end of the rotating shaft (63); a fixing column (641) is fixedly connected to the bottom of the crown gear (64); the fixing column (641) is fixedly connected to the clamping box (65); a driving gear (67) is fixedly connected to the bidirectional lead screw (66); and the crown gear (64) is meshingly connected to the driving gear (67).

3. A flexible clamping arm for housing assembly according to claim 2, characterized in that: A fixed base (21) is fixedly connected to the workbench (1); a turntable (22) is rotatably connected to the fixed base (21); a connecting plate (23) is fixedly connected to the surface of the turntable (22); and the connecting plate (23) is hingedly connected to the first mechanical arm (24).

4. A flexible clamping arm for housing assembly according to claim 3, characterized in that: A conveyor belt (3) is rotatably connected to the workbench (1); and the assembly table (4) is arranged in a rectangular shape.

5. A flexible clamping arm for housing assembly according to claim 4, characterized in that: The driving assembly (2) and the clamping assembly (6) are both driven by a motor.

6. A flexible clamping arm for housing assembly according to claim 1, characterized in that: The flexible clamping plate (69) is made of rubber.

7. A flexible clamping arm for housing assembly according to claim 6, characterized in that: The bottom of the workbench (1) is fixedly connected to a support leg (5); the bottom of the support leg (5) is fixedly connected to a rubber pad (51).

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