Electric torque-increasing wrench

Abstract

The utility model discloses an electric torque-increasing wrench, and relates to the technical field of wrenches. The electric torque-increasing wrench comprises an electric torque-increasing wrench body, a rotating head rotationally arranged at one end of the electric torque-increasing wrench body and a wrench head connected with the rotating head, a clamping groove matched with a bolt is formed in one end of the wrench head, a handle is fixedly arranged on the outer wall of the electric torque-increasing wrench body, and a power source is arranged at the bottom end of the handle. According to the device, an electric torque-increasing wrench and a signal terminal are combined for use, the signal terminal is linked with a main line anti-misoperation system through a receiver, so that the signal terminal records the number of fastening times of a screw or a bolt, and then the receiver correspondingly controls a pneumatic stopper at the main line anti-misoperation system according to a received recorded number signal; compared with a robot or a visual inspection device with a mechanical arm, the visual inspection device has the advantages that the overall production cost is low, and resources are effectively saved.

Description

Technical Field

[0001] This utility model relates to the field of wrench technology, specifically to an electric torque-increasing wrench. Background Technology

[0002] Electric torque wrenches typically refer to electric torque wrenches, which can increase torque output within a certain range. They are used to tighten or loosen bolts and nuts that require greater torque. The core of an electric torque wrench lies in its power source, namely the electric motor. The electric motor transmits torque to the wrench head through a reducer and transmission mechanism, thereby enabling the rapid tightening or loosening of screws and bolts.

[0003] Bolt assembly is one of the key processes in the assembly industry. When using an electric torque wrench to drive screws and bolts in, insufficient driving passes may occur, resulting in loose screws and bolts. This leads to poor product quality and potential safety hazards during later use. Current technologies typically use robots or vision inspection devices with robotic arms to address the issue of missing bolts, which involves significant overall equipment investment and is not cost-effective. To address the shortcomings of existing technologies, we propose an electric torque wrench to solve the aforementioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides an electric torque-enhancing wrench, which solves the problem that when using an electric torque-enhancing wrench to drive in screws and bolts, there may be insufficient number of drives, resulting in screws and bolts not being tightened properly. This leads to poor product quality when screws and bolts are installed, and also addresses the issue of high overall investment when using robots or vision inspection devices with robotic arms for the operation.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an electric torque-increasing wrench, comprising an electric torque-increasing wrench body, a rotating head rotatably disposed at one end of the electric torque-increasing wrench body, and a wrench head connected to the rotating head. One end of the wrench head has a groove adapted to fit a bolt, and the interior of the wrench head has a connecting groove communicating with the groove. An error-prevention mechanism is provided inside the connecting groove, the error-prevention mechanism comprising:

[0006] The signal terminal is installed on the outside of the electric torque wrench body, and the outer wall of the electric torque wrench body is provided with a bracket for supporting the installation of the signal terminal.

[0007] The clamping plate has one end rotatably connected to the inner wall of the connecting groove, and the other ends of the two sets of clamping plates are located inside the slot.

[0008] A threaded rod is rotatably disposed inside the connecting groove, and the opening angle of the two sets of clamping plates is adjusted through the threaded connection between the threaded rod and the two sets of clamping plates.

[0009] A drive motor is disposed inside the connecting groove and is connected to one end of the threaded rod. The drive motor is connected to a signal terminal network.

[0010] Preferably, a cover for supporting the drive motor and the threaded rod is fixedly installed inside the connecting groove, and a receiving terminal connected to a signal terminal network is provided on the outer wall of the drive motor.

[0011] Preferably, the outer wall of the threaded rod is threadedly connected to a threaded seat, and the outer wall of the threaded seat is rotatably connected to a control plate for controlling the change of the opening angle of the clamping plate.

[0012] Preferably, one end of the control plate is movably hinged to a limit block, and one side of the clamping plate is provided with a groove for the limit block to slide.

[0013] Preferably, a telescopic rod is fixedly provided on one side of the threaded seat, and the other end of the telescopic rod is fixedly connected to one side of the cover.

[0014] Preferably, anti-slip blocks are fixedly provided on the side of both sets of clamping plates away from the control plate.

[0015] Preferably, a handle is fixedly provided on the outer wall of the electric torque-increasing wrench body, and a power source is provided at the bottom of the handle.

[0016] This utility model discloses an electric torque-increasing wrench, which has the following beneficial effects: This electric torque-increasing wrench is used in combination with a signal terminal. The signal terminal is linked with the main line anti-misoperation system through a receiver, so that the signal terminal records the number of times the screw or bolt is tightened. Then, the receiver controls the pneumatic stopper at the main line anti-misoperation system according to the received recorded number of times signal, so as to ensure that the screw or bolt can be driven in the corresponding number of times as required by the system. The accuracy and quality of the operation are improved, the overall efficiency is increased, and the overall production cost is lower than that of robots or vision inspection devices with robotic arms, effectively saving resources. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a cross-sectional view of the internal structure of the wrench head of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the clamping plate and the control plate of this utility model;

[0021] Figure 4 This is a schematic diagram of the connection structure between the control board and the threaded rod of this utility model;

[0022] Figure 5 This is a schematic diagram of the card slot and connecting slot structure of this utility model.

[0023] In the diagram: 1. Main body of the electric torque wrench; 2. Handle; 3. Power supply; 4. Rotating head; 5. Wrench head; 51. Slot; 52. Connecting slot; 6. Signal terminal; 61. Bracket; 7. Clamping plate; 71. Threaded rod; 72. Threaded seat; 73. Control board; 74. Drive motor; 741. Cover; 75. Slide groove; 76. Limit block; 77. Telescopic rod; 8. Receiving terminal; 9. Anti-slip block. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments of this utility model are described clearly and completely. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] This application provides an electric torque-enhancing wrench that solves the problem of insufficient driving cycles when using electric torque-enhancing wrenches to tighten screws and bolts, resulting in loose screws and bolts and thus poor product quality. Furthermore, it addresses the issue of high overall investment when using robots or vision inspection devices with robotic arms. The solution involves combining the electric torque-enhancing wrench with a signal terminal to link the wrench with an error prevention system, ensuring the accuracy of screw or bolt driving operations.

[0026] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0027] This utility model discloses an electric torque-increasing wrench.

[0028] According to the appendix Figure 1-5As shown in the figure, it includes an electric torque increasing wrench body 1, a rotating head 4 rotatably arranged at one end of the electric torque increasing wrench body 1, and a wrench head 5 connected to the rotating head 4. A clamping groove 51 adapted to the bolt is provided at one end of the wrench head 5. A handle 2 is fixedly arranged on the outer wall of the electric torque increasing wrench body 1, and a power source 3 is arranged at the bottom end of the handle 2. Components such as the electric torque increasing wrench body 1, the handle 2, the power source 3, the rotating head 4, and the wrench head 5 form an electric torque increasing wrench. When in use, the operator holds the electric torque increasing wrench by the handle 2, then sleeks the wrench head 5 on the outer walls of the screws and bolts to be rotated, and then presses the switch at the handle 2 to start the motor inside the electric torque increasing wrench body 1 (the motor is not specifically shown in the attached drawing), so that the motor drives the rotating head 4 and the wrench head 5 assembled at the rotating head 4 to rotate, thereby quickly tightening or loosening the screws and bolts.

[0029] Refer to the attached Figure 2-5 , a connecting groove 52 communicating with the clamping groove 51 is provided inside the wrench head 5, and an anti-error mechanism is arranged inside the connecting groove 52. Through the arranged anti-error mechanism, the effective driving operation of the screws and bolts is realized, and the situation of defective driving of the screws and bolts is avoided. The anti-error mechanism includes a signal terminal 6. The signal terminal 6 is installed outside the electric torque increasing wrench body 1, and a bracket 61 for installing and supporting the signal terminal 6 is arranged on the outer wall of the electric torque increasing wrench body 1. The signal terminal 6 is network-connected to the receiver located inside the electric torque increasing wrench, and the receiver is network-connected to the main line anti-error system of the automated production line, and can thus be linked with the pneumatic stopper of the automated production line. For example, on the automated production line, when the screw or bolt moves to the designated position along with the product, the pneumatic stopper is opened at this time to lock the position of the product. The signal terminal 6 is used to record the tightening times of the screw or bolt, and then the receiver controls the opening and closing of the pneumatic stopper according to the received recorded times signal. For example, if the bolt or screw needs to be driven in 15 times according to the system setting, the bolt or screw is driven in by the electric torque increasing wrench at this time. After the bolt or screw is driven in 15 times, the pneumatic stopper drops, and the product can flow into the next process. If the driving in is less than 15 times, the pneumatic stopper does not drop, and the product cannot flow into the next process, thereby avoiding the situation of defective driving of the bolt or screw and realizing anti-error.

[0030] Refer to the attached Figure 2-4Two sets of clamping plates 7 are rotatably connected at one end to the inner wall of the connecting groove 52, and the other end of the two sets of clamping plates 7 is located inside the slot 51. Anti-slip blocks 9 are fixedly installed on the side of each set of clamping plates 7 away from the control plate 73. When the wrench head 5 is fitted onto the outer wall of the screw or bolt through the slot 51, the anti-slip blocks 9 at one end of the two sets of clamping plates 7 can be controlled to abut against the inner wall of the screw or bolt, thus further limiting the connection position between the wrench head 5 and the bolt or screw. The threaded rod 71 is rotatably disposed inside the connecting groove 52, and a threaded seat 72 is threadedly connected to the outer wall of the threaded rod 71. A control plate 73 for controlling the opening angle of the clamping plates 7 is rotatably connected to the outer wall of the threaded seat 72. One end of 73 is movably hinged to a limiting block 76. A groove 75 is provided on one side of the clamping plate 7 for the limiting block 76 to slide. The opening angle of the two sets of clamping plates 7 is adjusted by the threaded connection between the threaded rod 71 and the two sets of clamping plates 7. The drive motor 74 is located inside the connecting groove 52 and is connected to one end of the threaded rod 71. A cover 741 for supporting the drive motor 74 and the threaded rod 71 is fixedly installed inside the connecting groove 52. A telescopic rod 77 is fixedly installed on one side of the threaded seat 72. The other end of the telescopic rod 77 is fixedly connected to one side of the cover 741. A receiving terminal 8 connected to the signal terminal 6 network is provided on the outer wall of the drive motor 74.

[0031] Specifically, when the wrench head 5 is fitted onto the outer wall of the screw or bolt through the slot 51, the drive motor 74 automatically starts, causing the drive motor 74 to control the threaded rod 71 to rotate. Subsequently, under the threaded connection between the threaded rod 71 and the threaded seat 72, the threaded seat 72 moves closer to the slot 51, causing the control plate 73 between the threaded seat 72 and the clamping plate 7 to open. This, in turn, causes the control plate 73 to control the clamping plate 7 to open, so that the anti-slip block 9 at one end of the clamping plate 7 abuts against the inner wall of the screw or bolt. Then, after the bolt or screw has been driven in 15 times, the receiving terminal... 8 controls the drive motor 74 to start again, causing the drive motor 74 to control the threaded rod 71 to move the threaded seat 72 away from the slot 51, thereby retracting the two sets of clamping plates 7. This prevents the anti-slip block 9 at one end of the clamping plate 7 from contacting the inner wall of the bolt or screw, allowing the product to flow into the next process. If the bolt or screw is driven in less than 15 times, the receiving terminal 8 does not control the drive motor 74 to start, causing the clamping plate 7 to remain in contact with the inner wall of the bolt or screw, preventing the product from flowing into the next process, thus avoiding the occurrence of insufficient bolt or screw driving.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An electric torque-increasing wrench, comprising an electric torque-increasing wrench body (1), a rotating head (4) rotatably disposed at one end of the electric torque-increasing wrench body (1), and a wrench head (5) connected to the rotating head (4), wherein one end of the wrench head (5) is provided with a groove (51) adapted to a bolt, characterized in that, The wrench head (5) has a connecting groove (52) inside that communicates with the slot (51). The connecting groove (52) is provided with an error prevention mechanism, which includes: The signal terminal (6) is installed outside the electric torque wrench body (1), and the outer wall of the electric torque wrench body (1) is provided with a bracket (61) for supporting the installation of the signal terminal (6). The clamping plate (7) has one end rotatably connected to the inner wall of the connecting groove (52), and the other ends of the two sets of clamping plates (7) are located inside the slot (51); The threaded rod (71) is rotatably disposed inside the connecting groove (52). The opening angle of the two sets of clamping plates (7) is adjusted by the threaded connection between the threaded rod (71) and the two sets of clamping plates (7). A drive motor (74) is disposed inside the connecting groove (52) and is connected to one end of the threaded rod (71). The drive motor (74) is network-connected to the signal terminal (6).

2. The electric torque-increasing wrench according to claim 1, characterized in that: The connecting groove (52) is fixedly provided with a cover (741) for supporting the drive motor (74) and the threaded rod (71), and the outer wall of the drive motor (74) is provided with a receiving terminal (8) that is connected to the signal terminal (6) network.

3. The electric torque-increasing wrench according to claim 2, characterized in that: The outer wall of the threaded rod (71) is threadedly connected to a threaded seat (72), and the outer wall of the threaded seat (72) is rotatably connected to a control plate (73) for controlling the opening angle of the clamping plate (7).

4. The electric torque-increasing wrench according to claim 3, characterized in that: One end of the control plate (73) is movably hinged to a limiting block (76), and a groove (75) for limiting the sliding of the limiting block (76) is provided on one side of the clamping plate (7).

5. An electric torque-increasing wrench according to claim 3, characterized in that: A telescopic rod (77) is fixedly provided on one side of the threaded seat (72), and the other end of the telescopic rod (77) is fixedly connected to one side of the cover (741).

6. An electric torque-increasing wrench according to claim 1, characterized in that: Anti-slip blocks (9) are fixedly installed on the side of both sets of clamping plates (7) away from the control plate (73).

7. An electric torque-increasing wrench according to claim 1, characterized in that: The outer wall of the electric torque wrench body (1) is fixedly provided with a handle (2), and a power supply (3) is provided at the bottom of the handle (2).

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