Screwing device

Abstract

The utility model relates to the technical field of mechanical equipment, and provides screwing equipment which comprises a conveying assembly, an intercepting assembly, a positioning assembly and a screwing assembly. The conveying assembly conveys workpieces in the first direction. The intercepting assembly comprises an intercepting piece which can intercept a workpiece in the first direction. The positioning assembly comprises a positioning piece, the positioning piece can be inserted into the positioning hole, and an included angle is formed between the axial direction of the positioning hole and the first direction; the positioning assembly and the screwing assembly are relatively fixed in the first direction, the screwing assembly comprises a socket spanner, and the socket spanner can grab the threaded fastener, get close to or get away from a threaded structure of a workpiece and rotate relative to the workpiece, so that the threaded fastener is in threaded connection with the threaded structure. The conveying assembly can achieve automatic conveying of the workpieces, and the positioning assembly and the intercepting piece jointly limit displacement of the workpieces, so that stability of the workpieces during operation is guaranteed, and operation efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a screwing device. Background Art

[0002] Threaded fasteners, as common connecting parts in mechanical connections, are used to connect workpieces. In some mechanical structures, when there are multiple places where threaded fasteners need to be used, the manual operation efficiency is low and the consistency is poor. Generally, a screwing device is used.

[0003] The workpiece is placed below the screwing device. The socket wrench of the screwing device is aligned with the threaded structure of the workpiece. The socket wrench can move up and down and rotate relative to the workpiece to complete the work of tightening or loosening the threaded fastener. However, when operating, since the socket wrench applies a rotational force to the workpiece, it is necessary to clamp the workpiece to keep it stable during the operation.

[0004] In this way, the handling and clamping fixation of the workpiece still need to be performed manually, and the efficiency is relatively low.

[0005] Therefore, there is an urgent need for a screwing device to solve the above technical problems. Summary of the Utility Model

[0006] The purpose of the utility model is to provide a screwing device, which can ensure the automation of workpiece transportation and its stability during operation, and improve the operation efficiency.

[0007] To achieve this purpose, the utility model adopts the following technical solutions:

[0008] A screwing device for screwing threaded fasteners onto a workpiece, the workpiece being provided with a threaded structure and a positioning hole, the screwing device comprising:

[0009] A conveying component, the conveying component transporting the workpiece in a first direction;

[0010] An intercepting component, the intercepting component including an intercepting member, the intercepting member being capable of intercepting the workpiece in the first direction;

[0011] A positioning component, the positioning component including a positioning member, the positioning member being capable of being inserted into the positioning hole, the axis of the positioning hole being arranged at an angle to the first direction;

[0012] A screwing component, the positioning component and the screwing component being relatively fixed in the first direction, the screwing component including a socket wrench, the socket wrench being capable of grasping the threaded fastener, approaching or departing from the threaded structure of the workpiece, and being capable of rotating relative to the workpiece so that the threaded fastener is threadedly connected to the threaded structure.

[0013] As a preferred technical solution of the above-mentioned screwing device, a plurality of the above-mentioned socket wrenches are provided and can rotate relative to the above-mentioned workpiece simultaneously.

[0014] As a preferred technical solution of the above-mentioned screwing device, the above-mentioned screwing assembly includes a first driving motor and a transmission assembly, and one of the above-mentioned first driving motors can drive a plurality of the above-mentioned socket wrenches to rotate through the above-mentioned transmission assembly.

[0015] As a preferred technical solution of the above-mentioned screwing device, the above-mentioned screwing assembly includes a plurality of first driving motors, and the plurality of the above-mentioned first driving motors are arranged in one-to-one correspondence with the plurality of the above-mentioned socket wrenches.

[0016] As a preferred technical solution of the above-mentioned screwing device, the above-mentioned socket wrench includes a connecting rod, a socket joint and an elastic member. One end of the above-mentioned socket joint forms a clamping portion for gripping the above-mentioned threaded fastener, and the other end is connected to the above-mentioned connecting rod. One of the above-mentioned connecting rod and the above-mentioned socket joint is provided with a spline, and the other is provided with a spline groove. The above-mentioned spline is always slidably inserted into the above-mentioned spline groove, and the above-mentioned elastic member makes the above-mentioned socket joint always have a tendency to move away from the above-mentioned connecting rod.

[0017] As a preferred technical solution of the above-mentioned screwing device, it further includes a lifting assembly. The above-mentioned lifting assembly includes a guide rail and a lead screw. The above-mentioned guide rail and the above-mentioned lead screw are arranged in parallel. The above-mentioned screwing assembly is located above the above-mentioned conveying assembly, and the above-mentioned screwing assembly is slidably connected to the above-mentioned guide rail and threadedly connected to the above-mentioned lead screw.

[0018] As a preferred technical solution of the above-mentioned screwing device, the above-mentioned lifting assembly further includes a counterweight, and the above-mentioned counterweight is connected to the above-mentioned screwing assembly, so that the above-mentioned screwing assembly always has a tendency to move away from the above-mentioned workpiece.

[0019] As a preferred technical solution of the above-mentioned screwing device, the above-mentioned intercepting assembly further includes a first jacking mechanism, and the output end of the above-mentioned first jacking mechanism is fixed to the above-mentioned intercepting member.

[0020] As a preferred technical solution of the above-mentioned screwing device, the above-mentioned positioning assembly further includes a second jacking mechanism, and the output end of the above-mentioned second jacking mechanism is fixed to the above-mentioned positioning member.

[0021] As a preferred technical solution of the above-mentioned screwing device, it further includes a frame and a base. The above-mentioned conveying assembly and the above-mentioned frame are spaced apart along a second direction and installed on the above-mentioned base. The above-mentioned screwing assembly is installed on the above-mentioned frame and is located directly above the above-mentioned conveying assembly. The above-mentioned intercepting assembly and the above-mentioned positioning assembly are installed on the above-mentioned base;

[0022] The above-mentioned second direction is arranged at an angle to the above-mentioned first direction.

[0023] Advantages of the utility model:

[0024] The workpiece is placed on the conveying component at the loading point, and the conveying component transports the workpiece from the loading point to the processing point along the first direction. The screwing component, the intercepting component, and the positioning component are all located at the processing point. The intercepting member of the intercepting component includes a first position and a second position relative to the conveying component. When in the first position, the intercepting member is located on one side of the conveying component to avoid the workpiece, so that the workpiece can continue to be transported along the first direction. When in the second position, the intercepting member is located on the transportation trajectory of the workpiece to intercept the workpiece and make it stagnate at the processing position. The positioning member of the positioning component includes a third position and a fourth position relative to the conveying component. When in the third position, the positioning member is located on one side of the conveying component to avoid the workpiece, so that the workpiece can continue to be transported along the first direction. When in the fourth position, the positioning member can be inserted into the positioning hole of the workpiece. Since the axial direction of the positioning hole is set at an angle to the first direction, the positioning member can further limit the movement of the workpiece relative to the screwing component. The socket wrench of the screwing component can grasp the threaded fastener to load or unload the threaded fastener on the workpiece.

[0025] During use, the workpiece is placed on the conveying component and transported along the first direction. The intercepting member of the intercepting component is in the second position, and the positioning member of the positioning component is in the third position. The intercepting member is pre-located on the transportation trajectory of the workpiece. The workpiece contacts the intercepting member along the first direction and stays in place. The positioning member of the positioning component switches to the fourth position and is inserted into the workpiece to jointly limit the displacement of the workpiece with the intercepting member to complete the positioning of the workpiece.

[0026] When it is necessary to load the threaded fastener on the workpiece, the socket wrench grasps the threaded fastener. After aligning with the threaded structure of the workpiece, the socket wrench moves towards the side where the workpiece is located and starts to rotate, so that the threaded fastener is threadedly connected to the threaded structure. When it is necessary to unload the threaded fastener from the workpiece, the socket wrench first approaches the workpiece, grasps the threaded fastener connected to the threaded structure, the socket wrench starts to rotate and moves towards the side away from the workpiece to remove the threaded fastener from the workpiece.

[0027] In this way, the conveying component can realize the automatic transportation of the workpiece. The movement of the workpiece is jointly restricted by the intercepting component and the positioning component, so that when the screwing component operates on the workpiece, the workpiece remains stable, and the screwing component can complete the tightening or loosening action, improving the operation efficiency. Description of the drawings

[0028] To more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the accompanying drawings required for the description of the embodiments of the present utility model. Obviously, the accompanying drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on the content of the embodiments of the present utility model and these accompanying drawings.

[0029] Figure 1 is the front view of the screwing device provided by the embodiment of the present utility model;

[0030] Figure 2 is the side view of the screwing device provided by the embodiment of the present utility model;

[0031] Figure 3 is the schematic internal structure diagram of the screwing assembly provided by the embodiment of the present utility model;

[0032] Figure 4 is the structural schematic diagram of the positioning assembly provided by the embodiment of the present utility model;

[0033] Figure 5 is the structural schematic of the interception assembly provided by the embodiment of the present utility model Figure 1 ;

[0034] Figure 6 is the structural schematic of the interception assembly provided by the embodiment of the present utility model Figure 2 。

[0035] In the figure:

[0036] X, the first direction; Y, the second direction;

[0037] 10, the conveying assembly;

[0038] 20, the interception assembly; 21, the interception member; 22, the first lifting mechanism;

[0039] 30, the positioning assembly; 31, the positioning member; 32, the second lifting mechanism;

[0040] 40, the screwing assembly; 41, the socket wrench; 411, the connecting rod; 412, the socket joint; 42, the first driving motor; 43, the transmission shaft; 44, the first gear; 45, the second gear;

[0041] 50, the lifting assembly; 51, the guide rail; 52, the lead screw; 53, the counterweight;

[0042] 61, the frame; 62, the base. Detailed implementation manners

[0043] The present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the sake of convenience in description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0044] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0045] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or merely indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or merely indicates that the horizontal height of the first feature is lower than that of the second feature.

[0046] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "right", etc. are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0047] Such as Figures 1 to 6As shown, the utility model provides a screwing device for screwing a threaded fastener for a workpiece, the workpiece is provided with a threaded structure and a positioning hole, and the screwing device includes a conveying assembly 10, an intercepting assembly 20, a positioning assembly 30 and a screwing assembly 40. Among them, the conveying assembly 10 transports the workpiece along a first direction X; the intercepting assembly 20 includes an intercepting member 21, and the intercepting member 21 can intercept the workpiece in the first direction X; the positioning assembly 30 includes a positioning member 31, and the positioning member 31 can be inserted into the positioning hole, and the axial direction of the positioning hole is set at an angle with the first direction X; the positioning assembly 30 and the screwing assembly 40 are relatively fixed in the first direction X, and the screwing assembly 40 includes a socket wrench 41, and the socket wrench 41 can grab the threaded fastener, the threaded structure close to or away from the workpiece, and can rotate relative to the workpiece, so that the threaded fastener is threadedly connected with the threaded structure.

[0048] It should be noted that the thread structure of the workpiece can be a stud or a threaded hole. When the workpiece is a stud, the socket wrench 41 can grab the nut and install it on the stud; if the thread structure is a threaded hole, the socket wrench 41 can grab the bolt, screw or stud and insert it into the threaded hole.

[0049] Specifically, the workpiece is placed on the conveying assembly 10 at the loading point, and the conveying assembly 10 transports the workpiece from the loading point to the processing point along the first direction X. The screwing assembly 40, the intercepting assembly 20 and the positioning assembly 30 are all located at the processing point. The intercepting member 21 of the intercepting assembly 20 includes a first position and a second position relative to the conveying assembly 10. When in the first position, the intercepting member 21 is located on one side of the conveying assembly 10, avoiding the workpiece so that the workpiece can continue to be transported along the first direction X. When in the second position, the intercepting member 21 is located on the transport track of the workpiece to intercept the workpiece and make it stop at the processing position. The positioning member 31 of the positioning assembly 30 includes a third position and a fourth position relative to the conveying assembly 10. When in the third position, the positioning member 31 is located on one side of the conveying assembly 10, avoiding the workpiece so that the workpiece can continue to be transported along the first direction X. When in the fourth position, the positioning member 31 can be inserted into the positioning hole of the workpiece. Since the axial direction of the positioning hole is set at an angle with the first direction X, the positioning member 31 can further limit the movement of the workpiece relative to the screwing assembly 40. The socket wrench 41 of the screwing assembly 40 can grab the threaded fastener to load the threaded fastener or unload the threaded fastener on the workpiece.

[0050] When in use, the workpiece is placed in the conveying assembly 10 and transported along the first direction X, the intercepting member 21 of the intercepting assembly 20 is located at the second position, and the positioning member 31 of the positioning assembly 30 is located at the third position. The intercepting member 21 is pre-positioned on the transport track of the workpiece, and the workpiece contacts the intercepting member 21 along the first direction X and stays in place. The positioning member 31 of the positioning assembly 30 is switched to the fourth position and inserted into the workpiece, and together with the intercepting member 21, it limits the displacement of the workpiece to complete the positioning of the workpiece.

[0051] When it is necessary to load a threaded fastener on a workpiece, the socket wrench 41 grabs the threaded fastener, and after aligning it with the threaded structure of the workpiece, the socket wrench 41 moves toward the side where the workpiece is located and starts to rotate, so that the threaded fastener is threadedly connected to the threaded structure; when it is necessary to unload the threaded fastener from the workpiece, the socket wrench 41 first approaches the workpiece, grabs the threaded fastener connected to the threaded structure, and then the socket wrench 41 starts to rotate and moves to the side away from the workpiece to remove the threaded fastener from the workpiece.

[0052] In this way, the conveying assembly 10 can realize the automatic transportation of the workpiece, and the interception assembly 20 and the positioning assembly 30 jointly limit the movement of the workpiece, so that when the screwing assembly 40 operates on the workpiece, the workpiece remains stable, and the screwing assembly 40 can complete the tightening or loosening action, thereby improving the working efficiency.

[0053] It should be noted that when the workpiece is placed on the transmission assembly 10, the positioning hole of the workpiece faces the side where the positioning assembly 30 is located, and the thread structure of the workpiece faces the side where the screw assembly 40 is located.

[0054] Preferably, the positioning assembly 30 and the screwing assembly 40 are located on opposite sides of the transmission assembly 10. In this embodiment, the positioning assembly 30 is located below the transmission assembly 10, and the screwing assembly 40 is located above the transmission assembly 10. The axial direction of the positioning hole and the axial direction of the threaded structure are both parallel to the vertical direction, and the first direction X is the horizontal direction. In this way, after the positioning member 31 is plugged into the workpiece, the positioning member 31 and the workpiece only include the freedom of movement in the vertical direction. Due to the gravity of the workpiece itself and the force of the screwing assembly 40 on the workpiece in the vertical direction, it is difficult for the workpiece to move upward in the vertical direction and break away from the positioning member 31. In this way, the workpiece can be kept relatively fixed when the screwing assembly 40 disassembles and assembles the threaded fastener on the workpiece.

[0055] Furthermore, if the positioning hole of the workpiece is a circular hole, at least two positioning holes are provided, and the positioning assembly 30 is correspondingly provided with a positioning member 31, and the positioning member 31 is inserted in a one-to-one correspondence with the positioning hole to limit the rotation of the workpiece relative to the positioning member 31.

[0056] Furthermore, if the positioning hole of the workpiece is a polygonal hole such as a triangle or rectangle, the positioning member 31 is a corresponding deformed shape. After the positioning member 31 is plugged into the positioning hole, the two cannot rotate relative to each other. It should be noted that the positioning member 31 here can be any shape except the inscribed circle of the positioning hole and any shape with a radius smaller than the inscribed circle.

[0057] Preferably, the positioning member 31 is in the shape of a stepped shaft, including a large-diameter section, a small-diameter section, and a shaft shoulder formed between the large-diameter section and the small-diameter section. The small-diameter section of the positioning member 31 can be inserted into the positioning hole, the diameter of the large-diameter section is larger than the aperture of the positioning hole, and the shaft shoulder abuts against the opening end face of the positioning hole. When the positioning member 31 is in the fourth position, its small-diameter section is inserted into the positioning hole of the workpiece, and the large-diameter section jacks up the workpiece, so that the workpiece is separated from the conveying assembly 10. In this way, the influence of the conveying assembly 10 on the workpiece during processing is reduced.

[0058] In this embodiment, the transmission assembly includes two conveyor belts arranged in parallel in the horizontal direction, and the opposite sides of the workpiece are lapped on the conveyor belts.

[0059] Furthermore, the intercepting member 21 of the intercepting assembly 20 can move along the first direction X, and then push the workpiece to move, so as to align the positioning hole of the workpiece with the positioning member 31 of the positioning assembly 30.

[0060] Optionally, a plurality of socket wrenches 41 are provided and can rotate relative to the workpiece simultaneously. With such a setting, when there are a plurality of threaded structures on the workpiece, the plurality of socket wrenches 41 can operate on the plurality of threaded mechanisms simultaneously, thereby improving the operation efficiency.

[0061] Optionally, the screwing assembly 40 includes a first driving motor 42 and a transmission assembly. One first driving motor 42 can drive a plurality of socket wrenches 41 to rotate through the transmission assembly.

[0062] Specific solution one: The transmission assembly includes a transmission shaft 43, a first gear 44, and a second gear 45. The output end of the first driving motor 42 is in transmission connection with the transmission shaft 43. The first gear 44 is fixedly sleeved on the transmission shaft 43. A plurality of second gears 45 are provided, and the plurality of second gears 45 correspond to the plurality of socket wrenches 41 one by one and are fixedly sleeved on the socket wrenches 41. The plurality of second gears 45 are in meshing transmission with the same first gear 44. In this way, the first gear 44 is the driving wheel, the plurality of second gears 45 are the driven wheels, and the first driving motor 42 can drive a plurality of socket wrenches 41 to rotate simultaneously.

[0063] Specific solution two: The difference from solution one is that the first gear 44 and the second gear 45 are bevel gears. A plurality of first gears 44 are fixedly sleeved on the transmission shaft 43 at intervals along its axial direction. The second gear 45 is fixedly sleeved on the socket wrench 41 and is in transmission connection with the first gear 44; the first gear 44, the second gear 45, and the socket wrench 41 correspond to each other one by one.

[0064] In other embodiments, the screwing assembly 40 includes a plurality of first drive motors 42, and the plurality of first drive motors 42 are arranged in one-to-one correspondence with the plurality of socket wrenches 41. In this way, each first drive motor 42 is relatively independent and can control the start and stop of the corresponding socket wrench 41. According to the operation requirements of the workpiece, the corresponding socket wrench 41 can be selectively enabled.

[0065] Optionally, the socket wrench 41 includes a connecting rod 411, a socket joint 412 and an elastic member. One end of the socket joint 412 forms a clamping portion for grasping the threaded fastener, and the other end is connected to the connecting rod 411. One of the connecting rod 411 and the socket joint 412 is provided with a spline, and the other is provided with a spline groove. The spline is always slidably inserted into the spline groove, and the elastic member makes the socket joint 412 always tend to move away from the connecting rod 411.

[0066] Specifically, one end of the connecting rod 411 is in transmission connection with the first drive motor 42, and the other end of the connecting rod 411 is connected to the socket joint 412 through a spline structure, so that the two can rotate synchronously. The length direction of the spline groove is consistent with the axial direction of the threaded mechanism of the workpiece, so that the socket joint 412 can move relative to the connecting rod 411 along this direction and still maintain relative rotation. The elastic member keeps an active distance between the socket joint 412 and the connecting rod 411. In this way, the screwing assembly 40 can operate on the threaded structures on planes at different heights on the workpiece.

[0067] Optionally, the screwing device further includes a lifting assembly 50. The lifting assembly 50 includes a guide rail 51 and a lead screw 52. The guide rail 51 and the lead screw 52 are arranged in parallel. The screwing assembly 40 is located above the conveying assembly 10. The screwing assembly 40 is slidably connected to the guide rail 51 and threadedly connected to the lead screw 52. In this way, by rotating the lead screw 52, the screwing assembly 40 moves up and down along the guide rail 51, realizing the action of approaching or leaving the workpiece.

[0068] Optionally, the lifting assembly 50 further includes a counterweight 53. The counterweight 53 is connected to the screwing assembly 40, so that the screwing assembly 40 always tends to move away from the workpiece. Specifically, the counterweight 53 is connected to the screwing assembly 40 through a pulling rope. The two ends of the pulling rope are the counterweight 53 and the screwing assembly 40 respectively, and the middle section of the pulling rope is lapped on a fixed pulley. Both the counterweight 53 and the screwing assembly 40 are located below the fixed pulley. The fixed pulley can change the direction of the force, and the gravity of the counterweight 53 can offset part of the gravity of the screwing assembly 40, thereby reducing the load on the lead screw 52 and reducing the output torque for driving the lead screw 52 to rotate to lift the screwing assembly 40.

[0069] Optionally, the interception component 20 further includes a first lifting mechanism 22, and the output end of the first lifting mechanism 22 is fixed to the interception member 21. Specifically, the first lifting mechanism 22 is a cylinder, and its output end can achieve linear reciprocating movement, thereby realizing the switching of the interception member 21 between the first position and the second position.

[0070] In other embodiments, the interception member 21 can switch between the first position and the second position by swinging.

[0071] Optionally, the positioning component 30 further includes a second lifting mechanism 32, and the output end of the second lifting mechanism 32 is fixed to the positioning member 31. Specifically, the second lifting mechanism 32 is a cylinder, and its output end can achieve linear reciprocating movement, thereby realizing the switching of the positioning member 31 between the third position and the fourth position.

[0072] The first lifting mechanism 22 and the second lifting mechanism 32 can also be other mechanisms that can achieve linear reciprocating movement.

[0073] Optionally, the screwing device further includes a frame 61 and a base 62. The conveying component 10 and the frame 61 are installed on the base 62 at intervals along the second direction Y. The screwing component 40 is installed on the frame 61 and is located directly above the conveying component 10. The interception component 20 and the positioning component 30 are installed on the base 62; the second direction Y is arranged at an angle to the first direction X.

[0074] In this embodiment, the first direction X and the second direction Y are perpendicular and both are horizontal directions.

[0075] Further, in this embodiment, the screwing device further includes a control unit, a sensing component, and a second driving motor. The first lifting mechanism 22, the second lifting mechanism 32, the first driving motor 42, the second driving motor, and the sensing component are all communicatively connected to the control unit. The second driving motor is used to drive the lead screw 52 to rotate; the sensing component of the control unit includes a first sensor, a second sensor, and a third sensor. The first sensor is used to obtain the position information of the workpiece, the second sensor is used to obtain the position information of the screwing component 40, and the third sensor is used to determine whether the socket wrench 41 is aligned with the threaded structure.

[0076] During use, when the first sensor detects that the workpiece is approaching the processing point, the control unit commands the first lifting mechanism 22 to start and place the interception member 21 at the second position; after the positioning component 30 completes the positioning of the workpiece, the lifting component 50 starts to make the screwing component 40 approach the workpiece. After the second sensor detects that the screwing component 40 has moved in place, the control unit commands the lifting component 50 to stop. After the third sensor determines that the socket wrench 41 is aligned with the threaded structure, the control unit commands the first driving motor 42 to start, causing the socket wrench 41 to rotate.

[0077] The first sensor, the second sensor, and the third sensor can be optical infrared sensors or touch limit sensors, which are all prior arts and will not be elaborated herein.

[0078] In addition, the above are only the preferred embodiments of the present utility model and the technical principles applied. Those skilled in the art will understand that the present utility model is not limited to the specific embodiments described herein, and various obvious changes, re-adjustments, and substitutions can be made by those skilled in the art without departing from the protection scope of the present utility model. Therefore, although the present utility model has been described in detail through the above embodiments, the present utility model is not limited to the above embodiments only. Without departing from the concept of the present utility model, more other equivalent embodiments can be included, and the scope of the present utility model is determined by the scope of the appended claims.

Claims

1. A screwing device for screwing a threaded fastener into a workpiece, wherein the workpiece is provided with a threaded structure and a positioning hole, characterized in that: The screwing device comprises: A conveying assembly (10), wherein the conveying assembly (10) transports the workpiece along a first direction (X); An interception assembly (20), the interception assembly (20) comprising an interception member (21), the interception member (21) being capable of intercepting the workpiece in the first direction (X); A positioning assembly (30), the positioning assembly (30) comprising a positioning member (31), the positioning member (31) being insertable in the positioning hole, the axial direction of the positioning hole being arranged at an angle to the first direction (X); A screwing assembly (40), wherein the positioning assembly (30) and the screwing assembly (40) are relatively fixed in the first direction (X), and the screwing assembly (40) comprises a socket wrench (41), wherein the socket wrench (41) can grasp a threaded fastener, approach or move away from a threaded structure of a workpiece, and can rotate relative to the workpiece so that the threaded fastener is threadedly connected to the threaded structure.

2. The screwing device according to claim 1, characterized in that: The socket wrenches (41) are provided in plurality and can rotate relative to the workpiece simultaneously.

3. The screwing device according to claim 2, characterized in that: The screwing assembly (40) comprises a first drive motor (42) and a transmission assembly, and the first drive motor (42) can drive a plurality of the socket wrenches (41) to rotate via the transmission assembly.

4. The screwing device according to claim 2, characterized in that: The screwing assembly (40) comprises a plurality of first drive motors (42), and the plurality of first drive motors (42) are configured in a one-to-one correspondence with the plurality of socket wrenches (41).

5. The screwing device according to claim 1, characterized in that: The socket wrench (41) comprises a connecting rod (411), a socket joint (412) and an elastic member. One end of the socket joint (412) forms a clamping portion for grasping the threaded fastener, and the other end is connected to the connecting rod (411). One of the connecting rod (411) and the socket joint (412) is provided with a spline, and the other is provided with a spline groove. The spline is always slidably inserted in the spline groove. The elastic member enables the socket joint (412) to always have a tendency to move to a side away from the connecting rod (411).

6. The screwing device according to claim 1, characterized in that: The invention also comprises a lifting assembly (50), wherein the lifting assembly (50) comprises a guide rail (51) and a lead screw (52), wherein the guide rail (51) and the lead screw (52) are arranged in parallel, and the screwing assembly (40) is located above the transmission assembly (10), and the screwing assembly (40) is slidably connected to the guide rail (51) and is threadedly connected to the lead screw (52).

7. The screwing device according to claim 6, characterized in that: The lifting assembly (50) further comprises a counterweight (53), wherein the counterweight (53) is connected to the screwing assembly (40), so that the screwing assembly (40) always has a tendency to move toward a side away from the workpiece.

8. The screwing device according to claim 1, characterized in that: The interception component (20) further comprises a first lifting mechanism (22), the output end of the first lifting mechanism (22) being fixed to the interception member (21).

9. The screwing device according to claim 1, characterized in that: The positioning assembly (30) further comprises a second lifting mechanism (32), wherein an output end of the second lifting mechanism (32) is fixed to the positioning member (31).

10. The screwing device according to any one of claims 1 to 9, characterized in that: It also comprises a frame (61) and a base (62), wherein the transmission assembly (10) and the frame (61) are installed on the base (62) at intervals along a second direction (Y), the screwing assembly (40) is installed on the frame (61) and is located directly above the transmission assembly (10), and the interception assembly (20) and the positioning assembly (30) are installed on the base (62); The second direction (Y) is arranged at an angle with the first direction (X).

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