Mechanical arm part fixing device for robot machining

Abstract

The utility model discloses a mechanical arm part fixing device for robot machining, and particularly relates to the technical field of part assembly, which comprises a protective shell, a gear I, a gear II, a rotary driving module and a locking block, the protective shell is of a hollow structure, and one end of the protective shell is fixedly connected with a torsion bar; the first gear is rotationally connected into the protective shell, a torsion accessory is arranged on the first gear, the torsion accessory is arranged on the outer side of the protective shell, and the torsion accessory is used for being matched with a fastener in a torsion mode to achieve fixation of parts on the mechanical arm; the second gear is rotationally connected into the protective shell and is in meshed connection with the first gear, and a rotation driving module used for driving the second gear to rotate is arranged on the inner side of the protective shell; the locking block is movably clamped to the first gear, and an elastic telescopic structure is arranged on the protective shell. The utility model solves the problem that when mechanical arm parts are installed, a wrench needs to be manually controlled in the whole process to twist to realize screwing-in, and the fixing is more labor-consuming.

Description

Technical Field

[0001] The utility model relates to the technical field of parts assembly, and more specifically, to a mechanical arm parts fixing device for robot processing. Background Art

[0002] Industrial robots are multi-jointed manipulators or robots with multiple degrees of freedom designed for industrial applications. Industrial robots replacing humans in production is a key future trend in the manufacturing industry. They are the foundation for intelligent manufacturing and a guarantee for the future realization of industrial automation, digitalization, and intelligentization. Harsh production and processing environments, labor shortages due to an aging population, and high training costs are driving growing demand for industrial robots. A robotic arm is typically a programmable, human-like manipulator with joints that enable rotational (for example, in articulated robots) or translational (linear) motion. The various components of the robotic arm require tools to secure them during installation.

[0003] At present, during the assembly process of a robotic arm, humans often use wrenches and fasteners to assemble the parts of the robotic arm. However, when the assembly range for fixing parts is relatively narrow, there is no effective leveraging structure to meet the pre-fixation requirements when installing the fasteners. Therefore, humans need to control the wrench throughout the entire process to twist and screw in the fasteners, which is quite laborious. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a mechanical arm parts fixing device for robot processing. The technical problem to be solved by the present invention is that when installing the mechanical arm parts, manual control of the wrench is required to twist and screw them in, which is relatively laborious.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a device for fixing parts of a robot arm for processing a robot, comprising:

[0006] A protective shell having a hollow structure, one end of which is fixedly connected to a torsion bar;

[0007] Gear 1, the gear 1 being rotatably connected within the protective housing, the gear 1 being provided with a torsion fitting disposed on the outside of the protective housing, the torsion fitting being used to torsionally engage a fastener to secure parts on the robotic arm;

[0008] Gear 2, the gear 2 is rotatably connected within the protective housing and meshes with the gear 1, and a rotation drive module for driving the gear 2 to rotate is provided on the inner side of the protective housing;

[0009] A locking block is movably connected to the gear one, and an elastic telescopic structure is provided on the protective shell, and the elastic telescopic structure is connected to the locking block.

[0010] In a preferred embodiment, the torsion fitting includes an inner hexagonal torque head fixedly connected to one end of the gear and an outer hexagonal torque head fixedly connected to the other end of the gear.

[0011] In a preferred embodiment, the rotation drive module includes a motor fixedly connected to the protective shell, a worm fixedly connected to the output end of the motor, and a worm wheel meshingly connected to the worm, the worm wheel is coaxially fixed to the gear 2, a pair of support blocks are fixedly connected to the inner wall of the protective shell, and the worm is rotatably connected to the pair of support blocks.

[0012] In a preferred embodiment, the locking block is provided with a tooth groove adapted to a tooth of the gear.

[0013] In a preferred embodiment, the elastic telescopic structure includes a rectangular sliding rod that movably passes through the protective shell, a reset spring mounted on the rectangular sliding rod, and a pull rod fixedly connected to one end of the rectangular sliding rod, the other end of the rectangular sliding rod is fixedly connected to the locking block, the reset spring is located on the inner side of the protective shell, and the pull rod is located on the outer side of the protective shell.

[0014] In a preferred embodiment, a handle is provided at one end of the torsion bar facing away from the protective shell, and a battery is provided at the tail of the handle.

[0015] In a preferred embodiment, a key switch is provided on the handle, and the key switch is electrically connected to the motor via a battery.

[0016] The technical effects and advantages of this utility model are:

[0017] 1. The robot arm parts fixing device for robot processing of the present invention is provided with a rotation drive module, gear one and gear two. The rotation drive module drives gear two and gear one to rotate in sequence, thereby giving the torsion accessory the power to twist. The torsion accessory can then drive the fastener to rotate on the part of the robot arm to provide a pre-screw-in rotation effect for the fastener. The final tightening force is then applied manually, which can reduce the output of manual screwing of the fastener and reduce the torsional strength. Moreover, since the worm gear transmission has self-locking properties, the entire protective shell can be easily rotated to drive the torsion accessory to perform the final screw-in fixation on the fastener. In addition, since the entire fixing device is designed as a flat structure, it can adapt to the screw-in fixation of the fastener in a relatively narrow range.

[0018] 2. The robot arm parts fixing device for robot processing of the present invention is provided with a locking block and an elastic telescopic structure. When the fastener is pre-rotated by electric means, the elastic telescopic structure can be pulled to drive the locking block to disengage from gear one, so that gear one can unlock the rotation lock. When the locking block is stuck on gear one, it is now the use state of the rotating protective shell. By giving gear one a locking property, the force of the worm gear self-locking can be distributed, thereby improving the reliability of the self-locking. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0020] Figure 1 This is a schematic structural diagram of the overall first perspective of the utility model.

[0021] Figure 2 This is a schematic structural diagram of the overall second viewing angle of the present invention.

[0022] Figure 3 For this utility model Figure 1 Cutaway view without the torsion bar and handle.

[0023] Figure 4 This is a structural diagram of the gear 1, the locking block and the elastic telescopic structure of the present invention.

[0024] The accompanying drawings are marked as follows: 1. Protective shell; 2. Torsion bar; 3. Handle; 4. Gear 1; 5. Torsion accessory; 51. Hexagonal torque head; 52. Hexagonal torque head; 6. Gear 2; 7. Rotation drive module; 71. Motor; 72. Worm; 73. Worm gear; 8. Locking block; 9. Elastic telescopic structure; 91. Rectangular slide bar; 92. Return spring; 93. Pull rod; 10. Support block; 11. Battery; 12. Push button switch. DETAILED DESCRIPTION

[0025] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can readily understand the other advantages and benefits of the present invention from the contents disclosed in this specification. Obviously, the embodiments described are only a portion of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.

[0026] See also Figure 1-Figure 4 The utility model provides a mechanical arm parts fixing device for robot processing, including a protective shell 1, a gear 1 4, a gear 2 6, a rotation drive module 7 and a locking block 8.

[0027] The protective shell 1 is set as a hollow structure, and one end of the protective shell 1 is fixedly connected to a torsion bar 2. The position of the torsion bar 2 can be used to drive the protective shell 1 to rotate the fasteners at the position of the mechanical arm parts. The fasteners are mostly bolt accessories.

[0028] Gear 1-4 is rotatably connected in the protective shell 1. A torsion accessory 5 is provided on the gear 1-4, and the torsion accessory 5 is provided on the outside of the protective shell 1. The torsion accessory 5 is used to twist the matching fasteners to fix the parts on the robotic arm. Gear 1-4 can provide rotational support for the torsion accessory 5. When the gear 1-4 rotates, the torsion accessory 5 can provide rotational power to the fasteners on the robotic arm parts, making it easy to screw in.

[0029] The torsion accessory 5 includes an inner hexagonal twist head 51 fixedly connected to one end of the gear 4 and an outer hexagonal twist head 52 fixedly connected to the other end of the gear 4. The setting of the inner hexagonal twist head 51 and the outer hexagonal twist head 52 can adapt to the fasteners of the inner and outer hexagonal structures to achieve card-in rotation, which can improve the applicability of the fasteners.

[0030] Gear 2 6 is rotatably connected in the protective housing 1 and meshes with gear 1 4 . A rotation drive module 7 is disposed on the inner side of the protective housing 1 and is used to drive gear 2 6 to rotate.

[0031] The rotation drive module 7 includes a motor 71 fixedly connected to the protective shell 1, a worm 72 fixedly connected to the output end of the motor 71, and a worm gear 73 meshingly connected to the worm 72. The worm gear 73 is coaxially fixed to the gear 2 6. A pair of support blocks 10 are fixedly connected to the inner wall of the protective shell 1, and the worm 72 is rotatably connected to the pair of support blocks 10.

[0032] Specifically, the motor 71 drives the worm 72 to rotate, and the meshing transmission of the worm wheel 73 can drive the gear 2 6 and the gear 1 4 to rotate in turn. After the torsion accessory 5 is clamped on the fastener, the torsion accessory 5 can provide a pre-screwing effect for the fastener on the robotic arm part, which can reduce the process of early screwing-in of the fastener and save more effort.

[0033] The locking block 8 is movably connected to the gear 1 4 . An elastic telescopic structure 9 is provided on the protective shell 1 , and the elastic telescopic structure 9 is connected to the locking block 8 .

[0034] The locking block 8 is provided with a tooth groove that is compatible with the teeth of gear 1-4. The tooth groove of the locking block 8 is set so that after the tooth groove is engaged with the teeth of gear 1-4, the rotation of gear 1-4 can be restricted. The rotation of the protective housing 1 can make gear 1-4 and the torsion accessory 5 rotate synchronously, thereby providing the final tightening force for the fasteners on the robot arm parts to be screwed in.

[0035] The elastic telescopic structure 9 includes a rectangular slide rod 91 that is movable through the protective shell 1, a return spring 92 that is sleeved on the rectangular slide rod 91, and a pull rod 93 that is fixedly connected to one end of the rectangular slide rod 91. The other end of the rectangular slide rod 91 is fixedly connected to the locking block 8. The return spring 92 is located on the inner side of the protective shell 1, and the pull rod 93 is located on the outer side of the protective shell 1.

[0036] Specifically, when the torsion accessory 5 is driven to rotate by the rotation drive module 7, the rectangular slide bar 91 can be pulled by the pull rod 93, the return spring 92 can be compressed, and the locking block 8 can be disengaged from the gear 4, so that the gear 4 can be conveniently driven to rotate by the rotation drive module 7. When it is necessary to provide the final tightening force to the fastener, by loosening the pull rod 93, the reset spring 92 can reset the locking block 8 to make it stuck on the gear 4, and lock the gear 4. The self-locking of the worm gear 73 and the worm 72 can be used to further provide a locking force for the gear 4. By sharing the locking force with the gear 4, the protective shell 1 and the torsion accessory 5 can be conveniently rotated at the fastener position while improving the locking strength to perform the final tightening of the fastener.

[0037] A handle 3 is provided at one end of the torsion bar 2 facing away from the protective shell 1 , and a battery 11 is provided at the tail of the handle 3 . The handle 3 can be manually held, and the battery 11 can provide power for driving the motor 71 .

[0038] A push button switch 12 is provided on the handle 3 , and the push button switch 12 is electrically connected to the motor 71 through the battery 11 . The push button switch 12 can conveniently realize the on and off of the power supply control of the motor 71 .

Claims

1. A mechanical arm parts fixing device for robot processing, characterized in that: include: A protective shell (1), wherein the protective shell (1) is provided in a hollow structure, and one end of the protective shell (1) is fixedly connected to a torsion bar (2); Gear one (4), the gear one (4) is rotatably connected in the protective housing (1), a torsion fitting (5) is provided on the gear one (4), and the torsion fitting (5) is provided on the outside of the protective housing (1), and the torsion fitting (5) is used to torsionally fit the fastener to achieve the fixation of the parts on the robot arm; Gear 2 (6), said gear 2 (6) is rotatably connected in said protective housing (1) and meshedly connected with said gear 1 (4), and a rotation drive module (7) for driving said gear 2 (6) to rotate is provided on the inner side of said protective housing (1); A locking block (8) is movably engaged with the gear one (4); an elastic telescopic structure (9) is provided on the protective shell (1); and the elastic telescopic structure (9) is connected to the locking block (8).

2. The robot arm parts fixing device for robot processing according to claim 1, characterized in that: The torsion fitting (5) comprises an inner hexagonal twist head (51) fixedly connected to one end of the gear one (4) and an outer hexagonal twist head (52) fixedly connected to the other end of the gear one (4).

3. The robot arm parts fixing device for robot processing according to claim 1, characterized in that: The rotary drive module (7) comprises a motor (71) fixedly connected to the protective housing (1), a worm (72) fixedly connected to the output end of the motor (71), and a worm wheel (73) meshingly connected to the worm (72), wherein the worm wheel (73) is coaxially fixed to the gear 2 (6), and a pair of support blocks (10) are fixedly connected to the inner wall of the protective housing (1), and the worm (72) is rotatably connected to the pair of support blocks (10).

4. The robot arm parts fixing device for robot processing according to claim 1, characterized in that: The locking block (8) is provided with a tooth groove adapted to the teeth of the gear 1 (4).

5. The robot arm parts fixing device for robot processing according to claim 1, characterized in that: The elastic telescopic structure (9) includes a rectangular slide bar (91) that is movable and passes through the protective shell (1), a return spring (92) that is sleeved on the rectangular slide bar (91), and a pull rod (93) that is fixedly connected to one end of the rectangular slide bar (91). The other end of the rectangular slide bar (91) is fixedly connected to the locking block (8). The return spring (92) is located on the inner side of the protective shell (1), and the pull rod (93) is located on the outer side of the protective shell (1).

6. The robot arm parts fixing device for robot processing according to claim 3, characterized in that: A handle (3) is provided at one end of the torsion bar (2) facing away from the protective housing (1), and a battery (11) is provided at the tail of the handle (3).

7. The robot arm parts fixing device for robot processing according to claim 6, characterized in that: A key switch (12) is provided on the handle (3), and the key switch (12) is electrically connected to the motor (71) via a battery (11).

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