Linear opening and closing type electric clamping jaw
By using ball screw and power motor drive system in the electric jaws, the synchronous and accurate movement of the open and closed jaws is achieved, which solves the problems of imprecise stroke position and insufficient grip force of the traditional jaws, and improves the efficiency and adaptability of the jaws.
Patent Information
- Application Number
- CN202421621632.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-09
- Publication Date
- 2025-05-30
- Estimated Expiration
- 2034-07-09
AI Technical Summary
Traditional electric jaws are prone to problems such as insufficient travel position and insufficient grip during clamping.
A linear open-close electric jaw is designed, using a ball screw and a power motor drive system. The opening and closing jaws are connected through the threaded section of the ball screw to achieve synchronous opposite or backward movement, ensuring that the opening and closing jaws are moved accurately to the preset stroke position.
It achieves the accuracy of stroke position and grip strength of the jaws. It is suitable for clamping fragile items and deformable products, and can adapt to clamping of products of various sizes.
Smart Images
Figure CN222920554U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of fixtures, in particular to a linear opening and closing type electric gripper. Background Technique
[0002] In industrial production, fixtures are often required to clamp objects or transfer objects. In actual production, the types and specifications of parts to be clamped are numerous. If a dedicated fixture is equipped for each type of part, the cost will be too high. Therefore, many electric grippers have emerged. Traditional electric grippers usually have each gripper driven by a separate motor. During the clamping process, deviations are likely to occur, resulting in inaccurate stroke positions and weak gripping forces. Content of the Utility Model
[0003] The purpose of the utility model is to provide a linear opening and closing type electric gripper with accurate stroke position and strong gripping force, so as to solve the problem of inaccurate stroke position of the gripper proposed in the above background technique.
[0004] To achieve the above purpose, the utility model provides the following technical solutions:
[0005] A linear opening and closing type electric gripper includes a hanging plate, a linear guide rail, a clamping assembly, and a driving assembly. The linear guide rail is arranged on the hanging plate. The clamping assembly includes two opening and closing grippers arranged oppositely. The lower part of one of the opening and closing grippers is movably arranged at one end of the linear guide rail, and the lower part of the other opening and closing gripper is movably arranged at the other end of the linear guide rail. The driving assembly includes a ball screw and a power motor. The ball screw is rotatably arranged on the hanging plate, and one end of it is in transmission connection with the power motor. The ball screw includes a left thread section with a reverse thread pitch and a right thread section connected to the left thread section. The upper part of one of the opening and closing grippers is connected to the left thread section, and the upper part of the other opening and closing gripper is connected to the right thread section.
[0006] Preferably, the opening and closing gripper includes a hanging part and a clamping part connected to the hanging part.
[0007] Preferably, the clamping assembly includes thread sleeves respectively sleeved on the left thread section and the right thread section. The top of the hanging part is connected to the thread sleeve, and the thread sleeve is threadedly connected to the left thread section or the right thread section.
[0008] Preferably, a C-shaped groove is formed at the top of the hanging part, and the hanging part is fixedly sleeved on the thread sleeve through the C-shaped groove.
[0009] Preferably, the clamping assembly includes sliders movably arranged on the linear guide rail and distributed at both ends of the linear guide rail. The sliders are fixedly connected to the hanging part or the clamping part.
[0010] Preferably, the driving assembly includes two bearing seats oppositely arranged on the hanging plate, and both ends of the ball screw are rotatably connected to the corresponding bearing seats.
[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: By driving the ball screw to rotate through the power motor, the opening and closing jaws on the left thread section and the right thread section move synchronously towards or away from each other, so that the two opening and closing jaws accurately move to the preset stroke position for clamping, improving the gripping force on the object, and can be used to clamp fragile items and easily deformable products; The width range of the opening and closing of the opening and closing jaws is relatively large, and it can adapt to the clamping of products of various sizes. Description of the Drawings
[0012] Figure 1 is a perspective view of the linear opening and closing type electric gripper of the present utility model;
[0013] Figure 2 is an exploded view of the linear opening and closing type electric gripper of the present utility model;
[0014] Figure 3 is a perspective view of the opening and closing jaw of the present utility model.
[0015] The markings in the figure correspond as follows:
[0016] 1 - hanging plate; 2 - linear guide rail; 3 - clamping assembly; 31 - opening and closing jaw; 311 - hanging part; 312 - clamping part; 32 - thread sleeve; 33 - slider; 4 - driving assembly; 41 - ball screw; 411 - left thread section; 412 - right thread section; 42 - power motor; 43 - bearing seat. Detailed Embodiments
[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0018] Please refer to Figure 1-2A linear opening and closing electric clamp comprises a hanging plate 1, a linear guide rail 2, a clamping assembly 3 and a driving assembly 4, wherein the linear guide rail 2 is arranged on the hanging plate 1. The clamping assembly 3 comprises two opening and closing claws 31 arranged opposite to each other, wherein the lower part of one of the opening and closing claws 31 is movably arranged at one end of the linear guide rail 2, and the lower part of the other opening and closing claw 31 is movably arranged at the other end of the linear guide rail 2. The driving assembly 4 comprises a ball screw 41 and a power motor 42, wherein the ball screw 41 is rotatably arranged on the hanging plate 1, and one end of the ball screw 41 is transmission-connected to the power motor 42, and the power motor 42 can drive the ball screw 41 to rotate. The ball screw 41 comprises a left thread segment 411 with opposite thread rotation directions and a right thread segment 412 connected to the left thread segment 411, wherein the upper part of one of the opening and closing claws 31 is connected to the left thread segment 411, and the upper part of the other opening and closing claw 31 is connected to the right thread segment 412.
[0019] See also Figure 1 When the power motor 42 drives the ball screw 41 to rotate forward, the two opening and closing claws 31 move toward each other along the axial direction of the ball screw 41, and the two opening and closing claws 31 approach each other and move to the preset position. When the two opening and closing claws 31 contact the object, the power motor 42 stops driving, thereby clamping the object; when the power motor 42 drives the ball screw 41 to rotate reversely, the two opening and closing claws 31 move away from each other along the axial direction of the ball screw 41, and the two opening and closing claws 31 are separated from the object. When the two opening and closing claws 31 move to the preset position, the power motor 42 stops driving.
[0020] See also Figure 2-3 The opening and closing claw 31 includes a hanging portion 311 and a clamping portion 312 connected to the hanging portion 311. The clamping assembly 3 includes a threaded sleeve 32 respectively sleeved on the left thread segment 411 and the right thread segment 412. The top of the hanging portion 311 is connected to the threaded sleeve 32, and the threaded sleeve 32 is connected to the left thread segment 411 or the right thread segment 412 through a threaded connection. When the ball screw 41 rotates, the threaded sleeves 32 on the left thread segment 411 and the right thread segment 412 move toward or away from each other along the axial direction of the ball screw 41, and drive the hanging portion 311 of the opening and closing claw 31 to move together.
[0021] In this embodiment, please refer to Figure 3 A C-shaped groove is formed at the top of the hanging portion 311, and the hanging portion 311 is fixedly sleeved on the threaded sleeve 32 through the C-shaped groove.
[0022] See also Figure 1-3 The clamping assembly 3 includes a slider 33 which is movably arranged on the linear guide rail 2 and distributed at both ends of the linear guide rail 2. The slider 33 is fixedly connected to the hanging part 311 or the clamping part 312. Through the cooperation between the slider 33 and the linear guide rail 2, the opening and closing claw 31 is limited, so that the opening and closing claw 31 performs a linear opening and closing action along the axial direction of the linear guide rail 2.
[0023] Preferably, the driving assembly 4 includes two bearing seats 43 oppositely arranged on the hanging plate 1, and two ends of the ball screw 41 are respectively rotatably connected to the corresponding bearing seats 43.
[0024] In summary, in the present utility model, the power motor 42 drives the ball screw 41 to rotate, so that the opening and closing jaws 31 on the left thread section 411 and the right thread section 412 move synchronously towards or away from each other, so that the two opening and closing jaws 31 accurately move to the preset stroke position for clamping, improving the gripping force on an object, and can be used for gripping fragile items and easily deformable products; the width range of the opening and closing movement of the opening and closing jaws 31 is relatively large, and it can adapt to the gripping of products of various sizes.
[0025] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, and the scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A linear opening and closing electric gripper, characterized in that: The invention comprises a hanging plate (1), a linear guide rail (2), a clamping assembly (3) and a driving assembly (4), wherein the linear guide rail (2) is arranged on the hanging plate (1), the clamping assembly (3) comprises two opening and closing claws (31) arranged opposite to each other, wherein the lower part of one of the opening and closing claws (31) is movably arranged at one end of the linear guide rail (2), and the lower part of the other of the opening and closing claws (31) is movably arranged at the other end of the linear guide rail (2), and the driving assembly (4) comprises a ball screw (41). and a power motor (42). The ball screw (41) is rotatably arranged on the hanging plate (1), one end of which is drivingly connected to the power motor (42). The ball screw (41) comprises a left thread segment (411) with opposite thread rotation directions and a right thread segment (412) connected to the left thread segment (411). The upper part of one of the opening and closing claws (31) is connected to the left thread segment (411), and the upper part of the other opening and closing claw (31) is connected to the right thread segment (412).
2. The linear opening and closing electric gripper according to claim 1, characterized in that: The opening and closing gripper (31) comprises a hanging portion (311) and a clamping portion (312) connected to the hanging portion (311).
3. The linear opening and closing electric gripper according to claim 2, characterized in that: The clamping assembly (3) comprises a threaded sleeve (32) respectively sleeved on the left threaded section (411) and the right threaded section (412); the top end of the hanging portion (311) is connected to the threaded sleeve (32); and the threaded sleeve (32) is connected to the left threaded section (411) or the right threaded section (412) via a threaded connection.
4. The linear opening and closing electric gripper according to claim 3 is characterized in that: A C-shaped groove is formed at the top end of the hanging portion (311), and the hanging portion (311) is fixedly sleeved on the threaded sleeve (32) through the C-shaped groove.
5. The linear opening and closing electric gripper according to claim 2, characterized in that: The clamping assembly (3) comprises a slider (33) movably arranged on the linear guide rail (2) and distributed at both ends of the linear guide rail (2); the slider (33) is fixedly connected to the hanging part (311) or the clamping part (312).
6. The linear opening and closing electric gripper according to claim 1, characterized in that: The driving assembly (4) comprises two bearing seats (43) arranged opposite to each other on the hanging plate (1), and two ends of the ball screw (41) are rotatably connected to the corresponding bearing seats (43) respectively.