Novel industrial electric claw
By designing a worm gear and rack and pinion mechanism, the self-locking problem of the electric gripper robot when power is lost or communication is interrupted is solved, enabling manual adjustment and operation in the event of a power outage, reducing cost and size, and improving adaptability.
Patent Information
- Application Number
- CN202422991857.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-12-05
AI Technical Summary
Existing electric gripper robots lack self-locking functionality, which poses a risk of objects falling when power is lost or communication is interrupted. Furthermore, adding brakes increases costs and size, and manual adjustment of the operation is not possible.
The system uses a worm gear and rack mechanism as the intermediate transmission part, with the drive motor set horizontally. It also features a manual adjustment slot to achieve a self-locking function, and the gripper state can be adjusted manually in case of power failure or communication interruption.
It enables operation even during power outages or communication interruptions, reduces device size and manufacturing costs, decreases the number of parts and friction, and improves adaptability to different working conditions.
Smart Images

Figure CN223532474U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mechanical transmission technology, and in particular to a novel industrial electric gripper. Background Technology
[0002] An electric gripper robot is an automated device that uses an electric motor to perform gripping operations. In addition to the motor, an electric gripper robot also includes grippers, intermediate transmission components, and other parts.
[0003] The intermediate transmission component of existing electric grippers generally uses a planetary reduction mechanism in conjunction with a gear and rack. The output shaft of the drive motor is transmitted to the rack on which the grippers are mounted after passing through the planetary reduction mechanism and gear transmission, thereby realizing the clamping and releasing between the two grippers of the electric gripper.
[0004] However, existing intermediate transmission components are complex and costly, and lack self-locking capabilities. In the event of a power outage, communication failure, or damage to the internal structure of the motor, the object being held may fall. While some electric grippers incorporate brakes within the drive motor to prevent this, adding brakes increases both manufacturing costs and the overall size of the device.
[0005] Meanwhile, existing electric gripper robots generally cannot be manually adjusted. In the event of a power outage or communication failure, the drive motor is usually stopped by the brake, making it impossible to continue working. It can only resume work after the power or communication is restored. Utility Model Content
[0006] To address the problems mentioned in the background art, this utility model discloses a novel industrial electric gripper, which solves the problems of existing electric gripper robots lacking self-locking function, requiring the addition of a braking device inside the motor, increasing device size and manufacturing cost, and existing electric gripper robots being unable to continue operation in the event of power failure or communication interruption.
[0007] A novel industrial electric gripper includes a clamping part, a driving part, and an intermediate transmission part.
[0008] The clamping part includes a clamping base, a first clamping jaw, and a second clamping jaw;
[0009] Both ends of the upper surface of the clamping base are fixedly provided with a guide rail. The first gripper and the second gripper are respectively installed on the guide rails at both ends of the clamping base. The first gripper and the second gripper can slide along the axial direction of the guide rail. The first gripper and the second gripper are fixedly connected to a rack.
[0010] The intermediate transmission part is installed in the clamping base; the intermediate transmission part includes a worm, a turbine and a drive gear, the worm meshes with the turbine, the drive gear is fixedly connected to the turbine, and racks fixedly connected to the first jaw and the second jaw are respectively disposed on both sides of the drive gear, and the racks fixedly connected to the first jaw and the second jaw mesh with the drive gear.
[0011] The driving part includes a drive motor, which is fixedly installed in the clamping base. The worm gear is sleeved on the output shaft of the drive motor, and the output shaft of the drive motor can drive the worm gear to rotate.
[0012] Furthermore, the clamping base has a first mounting cavity along the X direction and a second mounting cavity along the Z direction. The second mounting cavity communicates with the first mounting cavity. The turbine and drive gear are mounted in the first mounting cavity via a rotating shaft and bearings. The drive gear extends out of the first mounting cavity and meshes with the racks on the first and second grippers. The drive motor is mounted in the first mounting cavity, and the output shaft of the drive motor is arranged along the X direction.
[0013] Furthermore, at least one movable slider is fixedly connected to the bottom of both the first and second grippers. The movable slider has a groove adapted to the guide rail. The movable slider is mounted on the guide rail through the groove and can slide along the axial direction of the guide rail, thereby driving the first and second grippers to slide along the axial direction of the guide rail. The rack is fixedly connected to the movable slider at the bottom of the first and second grippers respectively, and the rack can drive the movable slider to slide along the axial direction of the guide rail.
[0014] Furthermore, a manual adjustment slot is provided at the end of the worm gear away from the drive motor, and a manual adjustment cavity communicating with the first mounting cavity is provided on the clamping base, with the manual adjustment cavity aligned with the manual adjustment slot on the worm gear.
[0015] Furthermore, a mounting flange is provided on one side between the output shaft of the drive motor and the worm gear. The worm gear is mounted in the mounting flange on the side facing the drive motor. Ball bearings are provided on the worm gear and the mounting flange. The output shaft of the drive motor passes through the mounting flange and is sleeved on the worm gear. The output shaft of the drive motor can drive the worm gear to rotate.
[0016] Furthermore, a sealing cover is detachably provided on one side of the first mounting cavity, and a cover groove adapted to the sealing cover is provided on the side of the clamping base where the first mounting cavity is located, and the sealing cover is detachably installed in the cover groove.
[0017] Furthermore, the drive motor is one of a DC motor, a stepper motor, or a servo motor.
[0018] This utility model features a reasonable structural design. The drive motor is horizontally positioned within the clamping base, while the first and second grippers are located on the upper surface of the clamping base. This significantly reduces the overall size of the electric gripper robot and improves the adaptability of the entire device to different working conditions. In this utility model, the intermediate transmission part achieves transmission and deceleration of the entire device solely through a worm gear and a rack and pinion mechanism, greatly reducing the number of parts and lowering component costs. Furthermore, the worm gear mechanism has a self-locking function, eliminating the need for an additional brake, further reducing the size and manufacturing cost of the electric gripper device.
[0019] In this invention, a manual adjustment slot is provided at one end of the worm gear, and a manual adjustment cavity corresponding to the manual adjustment slot is provided on the clamping base. When the drive motor is powered off or the drive motor signal is disconnected and cannot rotate normally, a manual adjustment tool, such as an "I"-shaped twisting tool, can be inserted by aligning the manual adjustment cavity with the manual adjustment slot. The worm gear can then be manually rotated by twisting the tool to adjust the clamping or loosening of the gripper. In other words, this device can still operate even when the drive motor is powered off or the signal is disconnected. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is the three-dimensional structure of the device of this utility model. Figure 1 .
[0022] Figure 2 This is the three-dimensional structure of the device of this utility model. Figure 2 .
[0023] Figure 3 This is the front view of the device of this utility model.
[0024] Figure 4 This is an exploded view of the structure of the device of this utility model.
[0025] Figure 5 This is a cross-sectional structural diagram of the device of this utility model.
[0026] Figure 6 This is a three-dimensional structural diagram of the transmission part in the device of this utility model.
[0027] Figure 7 This is a front view of the transmission part in the device of this utility model.
[0028] In the diagram: 1. Clamping base; 2. First gripper; 3. Second gripper; 4. Guide rail; 5. Rack; 6. Worm gear; 7. Turbine; 8. Drive gear; 9. Drive motor; 10. First mounting cavity; 11. Second mounting cavity; 12. Moving slider; 13. Manual adjustment slot; 14. Mounting flange; 15. Sealing cover plate; 16. Cover plate slot; 17. Manual adjustment cavity. Detailed Implementation
[0029] The embodiments of this utility model are described in detail below to make the advantages and features of this utility model more easily understood by those skilled in the art, thereby providing a clearer definition of the protection scope of this utility model. The accompanying drawings are part of the disclosure of this utility model and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of this utility model.
[0030] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0031] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0033] Example 1
[0034] 1. Refer to the appendix Figure 1-7 This utility model provides a novel industrial electric gripper, including a clamping part, a driving part, and an intermediate transmission part.
[0035] The clamping part includes a clamping base 1, a first clamping claw 2 and a second clamping claw 3;
[0036] A guide rail 4 is fixedly provided at both ends of the upper end face of the clamping base 1. The first claw 2 and the second claw 3 are respectively installed on the guide rail 4 at both ends of the clamping base 1. The first claw 2 and the second claw 3 can slide along the axial direction of the guide rail 4. A rack 5 is fixedly connected to the first claw 2 and the second claw 3.
[0037] The intermediate transmission part is installed in the clamping base 1; the intermediate transmission part includes a worm 6, a turbine 7 and a drive gear 8. The worm 6 meshes with the turbine 7. The drive gear 8 is fixedly connected to the turbine 7. The racks 5 fixedly connected to the first jaw 2 and the second jaw 3 are respectively disposed on both sides of the drive gear 8. The racks 5 fixedly connected to the first jaw 2 and the second jaw 3 mesh with the drive gear 8.
[0038] The driving part includes a drive motor 9, which is fixedly installed in the clamping base 1. The worm gear 6 is sleeved on the output shaft of the drive motor 9, and the output shaft of the drive motor 9 can drive the worm gear to rotate.
[0039] The clamping base 1 has a first mounting cavity 10 along the X direction and a second mounting cavity 11 along the Z direction. The second mounting cavity 11 communicates with the first mounting cavity 10. The turbine 7 and the drive gear 8 are mounted in the first mounting cavity 10 via a rotating shaft and bearings. The drive gear 8 extends out of the first mounting cavity 10 and meshes with the rack 5 on the first gripper 2 and the second gripper 3. The drive motor 9 is mounted in the first mounting cavity 10, and the output shaft of the drive motor 9 is arranged along the X direction.
[0040] At least one movable slider 12 is fixedly connected to the bottom of each of the first gripper 2 and the second gripper 3. The movable slider 12 has a groove adapted to the guide rail 4. The movable slider 12 is installed on the guide rail 4 through the groove. The movable slider 12 can slide along the axial direction of the guide rail 4, thereby driving the first gripper 2 and the second gripper 3 to slide along the axial direction of the guide rail 4. The rack 5 is fixedly connected to the movable slider 12 at the bottom of the first gripper 2 and the second gripper 3 respectively. The rack 5 can drive the movable slider 12 to slide along the axial direction of the guide rail 4.
[0041] A sealing cover plate 15 is detachably provided on one side of the first mounting cavity 10. A cover plate groove 16 adapted to the sealing cover plate 15 is opened on one side of the clamping base 1 where the first mounting cavity 10 is located. The sealing cover plate 15 is detachably installed in the cover plate groove 16.
[0042] The specific working steps of this embodiment are as follows: When clamping an object is required, the output shaft of the drive motor 9 rotates clockwise, thereby driving the worm gear 6 to rotate clockwise. The worm gear 6 transmits motion to the turbine 7, which drives the drive gear 8 to rotate. The drive gear 8 drives the racks 5 on both sides of it to move parallel to each other along the guide rail 4, thereby driving the first gripper 2 and the second gripper 3 to move along the guide rail 4 towards each other until the clamped object is clamped. When the operation is completed and it is necessary to release, the output shaft of the drive motor 9 reverses, thereby driving the worm gear 6 to reverse. The worm gear 6 transmits motion to the turbine 7, which drives the drive gear 8 to rotate. The drive gear 8 drives the racks 5 on both sides of it to move parallel to each other along the guide rail 4, thereby driving the first gripper 2 and the second gripper 3 to move along the guide rail 4 away from each other, completing the release.
[0043] Example 2
[0044] The difference between this embodiment and embodiment 1 is that: a manual adjustment groove 13 is provided at the end of the worm gear 6 away from the drive motor 9, and a manual adjustment cavity 17 communicating with the first mounting cavity 10 is provided on the clamping base 1, and the manual adjustment cavity 17 is aligned with the manual adjustment groove 13 on the worm gear 6.
[0045] This embodiment allows manual clamping or loosening of the grippers when the drive motor is powered off or communication is interrupted.
[0046] When the drive motor is powered off or communication is disconnected, a manual rotating tool in the shape of an "I" can be inserted through the manual adjustment cavity 17. The short side of the "I"-shaped rotating tool is the same as or smaller than the radius of the manual adjustment cavity 17. The "I"-shaped rotating tool is inserted into the manual adjustment cavity 17 until its short side is embedded in the manual adjustment groove 13. At this time, the long side of the "I"-shaped rotating tool is rotated, thereby rotating the worm gear 6, so that the first gripper 2 and the second gripper 3 move along the guide rail 4 in a direction that is closer to or further away from each other, thus completing the clamping or loosening of the gripper robot.
[0047] Example 3
[0048] The difference between this embodiment and embodiment 1 is that: a mounting flange 14 is provided on one side between the output shaft of the drive motor 9 and the worm 6, the side of the worm 6 facing the drive motor 9 is mounted in the mounting flange 14, the worm 6 and the mounting flange 14 are provided with ball bearings, the output shaft of the drive motor 9 passes through the mounting flange 14 and is sleeved on the worm 6, and the output shaft of the drive motor 9 can drive the worm 6 to rotate.
[0049] In this embodiment, a mounting flange 14 is provided between the drive motor 9 and the worm gear 6. A ball bearing is provided between the mounting flange 14 and the worm gear 6, which reduces the friction between the worm gear 6 and the fixed parts on both sides during rotation and improves the service life of the entire device.
[0050] In summary, this utility model features a reasonable structural design. The drive motor 9 is horizontally positioned within the clamping base 1, while the first gripper 2 and the second gripper 3 are located on the upper surface of the clamping base 1. This significantly reduces the overall size of the electric gripper robot and improves the adaptability of the entire device to different working conditions. In this utility model, the intermediate transmission part achieves transmission and deceleration of the entire device solely through a worm gear and a rack and pinion mechanism, greatly reducing the number of parts and lowering component costs. Furthermore, the worm gear mechanism has a self-locking function, eliminating the need for an additional brake, further reducing the size and manufacturing cost of the electric gripper device.
[0051] In this invention, a manual adjustment groove 13 is provided at one end of the worm gear, and a manual adjustment cavity 17 corresponding to the manual adjustment groove 13 is provided on the clamping base 1. When the drive motor 9 is de-energized or the drive motor 9 disconnects the signal and cannot rotate normally, a manual adjustment tool, such as an "I"-shaped twisting tool, can be inserted by aligning the manual adjustment cavity 17 with the manual adjustment groove 13. The worm gear 6 can be manually rotated by twisting the tool to adjust the clamping or loosening of the gripper. That is, this device can also operate when the drive motor is de-energized or the signal is disconnected.
Claims
1. A novel industrial electric gripper, characterized in that, Includes clamping parts, driving parts, and intermediate transmission parts. The clamping part includes a clamping base (1), a first clamping jaw (2) and a second clamping jaw (3); A guide rail (4) is fixedly provided at both ends of the upper end face of the clamping base (1). The first claw (2) and the second claw (3) are respectively installed on the guide rail (4) at both ends of the clamping base (1). The first claw (2) and the second claw (3) can slide along the axial direction of the guide rail (4). The first claw (2) and the second claw (3) are fixedly connected to a rack (5). The intermediate transmission part is installed in the clamping base (1); the intermediate transmission part includes a worm (6), a turbine (7) and a drive gear (8). The worm (6) meshes with the turbine (7). The drive gear (8) is fixedly connected to the turbine (7). The racks (5) fixedly connected to the first jaw (2) and the second jaw (3) are respectively disposed on both sides of the drive gear (8). The racks (5) fixedly connected to the first jaw (2) and the second jaw (3) mesh with the drive gear (8). The driving part includes a drive motor (9), which is fixedly installed in the clamping base (1). The worm (6) is sleeved on the output shaft of the drive motor (9), and the output shaft of the drive motor (9) can drive the worm to rotate.
2. The novel industrial electric gripper according to claim 1, characterized in that, The clamping base (1) has a first mounting cavity (10) in the X direction and a second mounting cavity (11) in the Z direction. The second mounting cavity (11) is connected to the first mounting cavity (10). The turbine (7) and the drive gear (8) are mounted in the first mounting cavity (10) through a rotating shaft and bearing. The drive gear (8) extends out of the first mounting cavity (10) and meshes with the rack (5) on the first jaw (2) and the second jaw (3). The drive motor (9) is mounted in the first mounting cavity (10). The output shaft of the drive motor (9) is set in the X direction.
3. The novel industrial electric gripper according to claim 2, characterized in that, At least one movable slider (12) is fixedly connected to the bottom of the first gripper (2) and the second gripper (3). The movable slider (12) has a groove adapted to the guide rail (4). The movable slider (12) is installed on the guide rail (4) through the groove. The movable slider (12) can slide along the axial direction of the guide rail (4), thereby driving the first gripper (2) and the second gripper (3) to slide along the axial direction of the guide rail (4). The rack (5) is fixedly connected to the movable slider (12) at the bottom of the first gripper (2) and the second gripper (3). The rack (5) can drive the movable slider (12) to slide along the axial direction of the guide rail (4).
4. A novel industrial electric gripper according to claim 3, characterized in that, A manual adjustment slot (13) is provided at one end of the worm gear (6) away from the drive motor (9), and a manual adjustment cavity (17) communicating with the first mounting cavity (10) is provided on the clamping base (1), and the manual adjustment cavity (17) is aligned with the manual adjustment slot (13) on the worm gear (6).
5. A novel industrial electric gripper according to claim 4, characterized in that, A mounting flange (14) is provided on one side between the output shaft of the drive motor (9) and the worm (6). The worm (6) is mounted in the mounting flange (14) on the side facing the drive motor (9). Ball bearings are provided on the worm (6) and the mounting flange (14). The output shaft of the drive motor (9) passes through the mounting flange (14) and is sleeved on the worm (6). The output shaft of the drive motor (9) can drive the worm (6) to rotate.
6. A novel industrial electric gripper according to claim 5, characterized in that, A sealing cover plate (15) is detachably provided on one side of the first mounting cavity (10). The clamping base (1) has a cover plate groove (16) adapted to the sealing cover plate (15) on one side of the first mounting cavity (10). The sealing cover plate (15) is detachably installed in the cover plate groove (16).
7. A novel industrial electric gripper according to any one of claims 1-6, characterized in that, The drive motor (9) is one of a DC motor, a stepper motor, or a servo motor.