Screw locking equipment

Abstract

The utility model relates to screw locking equipment which comprises a machine table, a jacking inclination mechanism and a screw locking mechanism, the jacking inclination mechanism is arranged on the machine table, and the screw locking mechanism is movably connected to the machine table and located above the jacking inclination mechanism. The jacking inclination mechanism comprises a jacking base and a supporting plate rotationally connected to the jacking base, and the supporting plate is provided with a supporting face. The jacking base and the supporting plate can be controlled to ascend and descend relative to the machine table together, and the supporting plate can rotate relative to the jacking base around an axis extending in the horizontal direction so that the supporting face can be located at the horizontal position parallel to the horizontal plane or the inclined position inclined relative to the horizontal plane. Therefore, when the part has an inclined plane, the inclined plane of the part can be parallel to the horizontal plane as long as the supporting plate rotates by an angle relative to the jacking base, and then the inclined plane of the part can be subjected to screw locking in the horizontal state, so that screw locking operation can be conveniently carried out, and the situation that locking is not firm or the locking precision is not high is avoided.

Description

Technical Field

[0001] This application relates to the field of product assembly technology, and in particular to a screw fastening device. Background Technology

[0002] In the assembly process of various electronic products, automatic lifting mechanisms are needed to lift the products for precise positioning. Therefore, automatic lifting mechanisms play an important role in industrialized assembly line operations, mainly in improving production efficiency, optimizing logistics processes, reducing labor costs, and improving safety. They can be widely used in automated assembly production.

[0003] However, due to the large number of parts that need to be assembled, and the irregular shapes of the parts, different parts need to be fixed together with screws. For example, when screwing different parts, some parts have inclined surfaces that are relatively inclined to the horizontal plane. Therefore, it is inevitable that screws will be screwed on inclined surfaces. If screws are screwed on inclined surfaces that are relatively inclined to the horizontal plane, it will be difficult to operate, resulting in poor screwing or low screwing accuracy. Utility Model Content

[0004] Based on this, the purpose of this application is to provide a screw fastening device to solve the problem in the prior art that screws are fastened on the inclined surface of the part in an inclined state, which makes operation difficult and leads to poor fastening or low fastening accuracy.

[0005] According to one aspect of this application, a screw fastening device is provided, comprising:

[0006] Machine tool;

[0007] A lifting and tilting mechanism is provided on the machine platform. The lifting and tilting mechanism includes a lifting seat and a support plate rotatably connected to the lifting seat. The support plate has a support surface. The lifting seat and the support plate can be controllably raised and lowered together in a vertical direction relative to the machine platform. The support plate can rotate relative to the lifting seat about an axis extending in a horizontal direction, so that the support surface can be in a horizontal position parallel to the horizontal plane or in an inclined position inclined relative to the horizontal plane.

[0008] A screw fastening mechanism is movably connected to the machine base and located above the lifting and tilting mechanism.

[0009] In one embodiment, the lifting and tilting mechanism further includes a fixed plate connected to the machine base, a vertical lifting cylinder connected to the fixed plate, the output end of the vertical lifting cylinder connected to the lifting seat, the lifting seat having lifting plates spaced apart above the fixed plate along the vertical direction; a support plate spaced apart above the lifting plates along the vertical direction and rotatably connected to the lifting plates; and a tilting lifting cylinder connected to the lifting seat, the output end of the tilting lifting cylinder connected to the support plate.

[0010] In one embodiment, a pressure sensor is mounted on the lifting seat or the support plate.

[0011] In one embodiment, the lifting seat further includes a mounting plate connected to the lifting plate. The mounting plate is spaced apart above the lifting plate. The pressure sensor is mounted on the mounting plate. The support plate has clearance holes extending through both sides of its thickness direction. When the support surface is in the horizontal position, the mounting plate is accommodated in the clearance holes, and the side surface of the mounting plate facing away from the lifting plate is flush with the support surface.

[0012] In one embodiment, the mounting plate has two surrounding plates on the side facing the lifting plate. The two surrounding plates are symmetrically arranged with a plane extending along the vertical direction as the symmetrical arrangement. Each surrounding plate includes a body and an extension that bends from one end of the body toward the other surrounding plate. The mounting plate and all the surrounding plates enclose a mounting position. The pressure sensor is located in the mounting position. The output end of the vertical lifting cylinder has an output section, which is also located in the mounting position and between the extension section and the pressure sensor.

[0013] In one embodiment, in the vertical direction, the gap between the pressure sensor and the extension is larger than the size of the output portion.

[0014] In one embodiment, the fixed plate has multiple buffer columns on the side facing the lifting plate, and the end of the buffer column away from the fixed plate is made of a flexible material.

[0015] In one embodiment, the lifting seat further includes a base plate, which is located at intervals below the fixed plate along the vertical direction. The lifting plate and the base plate are connected by multiple guide posts, each of which passes through the fixed plate.

[0016] In one embodiment, the support surface is provided with a plurality of bosses and / or positioning pins.

[0017] In one embodiment, the machine has a screw fastening station, and the screw fastening equipment further includes a horizontally extending conveyor line passing through the screw fastening station, with the lifting and tilting mechanism located below the conveyor line at the position of the screw fastening station.

[0018] The aforementioned screw fastening device incorporates a lifting and tilting mechanism, which includes a lifting seat and a support plate rotatably connected to the lifting seat. This allows the lifting seat and support plate to be controllably raised and lowered together vertically relative to the machine platform. The support plate can rotate relative to the lifting seat about a horizontally extending axis, thus positioning the support surface in a horizontal position parallel to the horizontal plane or an inclined position relative to the horizontal plane. Therefore, when a part has an inclined surface, simply rotating the support plate relative to the lifting seat by an angle will cause the part supported on the support plate to rotate by the same angle, ensuring the inclined surface of the part is parallel to the horizontal plane. This allows for screw fastening in a horizontal position, facilitating screw fastening and preventing issues such as insecure or inaccurate fastening. Attached Figure Description

[0019] Figure 1 This is an isometric view of a screw fastening device provided in an embodiment of this application.

[0020] Figure 2 Axonal view of the lifting and tilting mechanism in a screw fastening device provided in an embodiment of this application. Figure 1 (When the support surface is in a horizontal position).

[0021] Figure 3 A front view of the lifting and tilting mechanism in a screw fastening device provided in an embodiment of this application. Figure 1 (When the support surface is in a horizontal position).

[0022] Figure 4 A front view of the lifting and tilting mechanism in a screw fastening device provided in an embodiment of this application. Figure 2 (When the support surface is in an inclined position).

[0023] Figure 5 Axonal view of the lifting and tilting mechanism in a screw fastening device provided in an embodiment of this application. Figure 2 (When the support surface is in an inclined position).

[0024] Figure 6 for Figure 4 An enlarged schematic diagram of region A in the middle.

[0025] Explanation of reference numerals in the attached figures:

[0026] 10. Screw fastening equipment; 100. Machine base; 101. Fastening station; 200. Conveyor line; 210. Conveyor track; 300. Lifting and tilting mechanism; 301. Mounting position; 310. Lifting seat; 311. Lifting plate; 312. Base plate; 313. Guide column; 314. Mounting plate; 315. Enclosure; 3151. Body; 3152. Extension; 316. Buffer column; 320. Support plate; 321. Support surface; 322. Boss; 323. Positioning pin; 324. Clearance hole; 330. Fixing plate; 340. Vertical lifting cylinder; 341. Output section; 350. Tilting lifting cylinder; 360. Pressure sensor; 400. Screw fastening mechanism; 500. Transmission mechanism. Detailed Implementation

[0027] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0028] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0029] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0033] This application provides a screw fastening device for fastening screws to parts so that at least two parts can be fixedly connected to each other by screws.

[0034] The following description uses the housing of an automotive controller as an example to illustrate the structure of the screw fastening device in this application. It is understood that in other embodiments, the screw fastening device is not limited to fastening the housing of an automotive controller; it can also fasten any other parts that require screw fixing, and this is not limited thereto.

[0035] See Figure 1 , Figure 1A schematic diagram of a screw fastening device 10 provided in an embodiment of this application is shown. The screw fastening device provided in an embodiment of this application includes a machine base 100, a conveyor line 200, a lifting and tilting mechanism 300, and a screw fastening mechanism 400. The machine base 100 has a fastening station 101; the conveyor line 200 extends horizontally and passes through the fastening station 101; the lifting and tilting mechanism 300 is disposed on the machine base 100 and located below the conveyor line 200 at the position of the fastening station 101; the screw fastening mechanism 400 is movably connected to the machine base 100 through a transmission mechanism 500 and is located above the conveyor line 200 and the lifting and tilting mechanism 300.

[0036] The machine platform 100 serves as a support; the conveyor line 200 transports parts to the fastening station 101; the lifting and tilting mechanism 300 lifts the parts when they arrive at the fastening station 101 to position them and facilitate operation; and the screw fastening mechanism 400, driven by the transmission mechanism 500, can move freely in three-dimensional space to fasten the screws onto the parts.

[0037] In one embodiment, the conveyor line 200 includes two horizontally extending and parallel conveyor tracks 210. A tray (not shown) is slidably mounted on each conveyor track 210, and parts are carried on the trays. The conveyor tracks 210 are capable of conveying the trays horizontally. A lifting and tilting mechanism 300 is located between and below the two conveyor tracks 210. When the conveyor tracks 210 convey the tray to the fastening station 101, the lifting and tilting mechanism 300 lifts the tray upwards, disengaging it from the conveyor tracks 210 and positioning it at the fastening station 101 for screw fastening. After the fastening operation is completed, the lifting and tilting mechanism 300 operates again, lowering the tray and placing it on the conveyor tracks 210, allowing the conveyor tracks 210 to transport the screw-fastened parts to the next station.

[0038] It is understood that the structure of the conveyor line 200 is not limited to this. For example, it may not include a pallet, and the parts may be placed directly on the conveyor track 210. It may also be any structure that allows the parts to flow between different workstations, such as a conveyor belt. Alternatively, the conveyor line 200 may not be provided, and only the lifting and tilting mechanism 300 may be provided at the locking workstation 101. None of the above are limited.

[0039] See Figure 2 and Figure 3 , Figure 2 An axonometric view of the lifting and tilting mechanism 300 is shown. Figure 3A front view of the lifting and tilting mechanism 300 is shown. As described in the background art, some parts have inclined surfaces relative to the horizontal plane, inevitably leading to situations where screws need to be fastened to these inclined surfaces. If screws are fastened to these inclined surfaces while they are tilted relative to the horizontal plane, it becomes difficult to operate, resulting in insecure or inaccurate fastening. Therefore, to solve this problem, the lifting and tilting mechanism 300, in addition to lifting the parts, can also rotate the parts relative to the horizontal plane by a certain angle as needed after they have been lifted.

[0040] Specifically, such as Figure 3 and Figure 4 As shown, the lifting and tilting mechanism 300 includes a lifting seat 310 and a support plate 320 rotatably connected to the lifting seat 310. The support plate 320 has a support surface 321 on one side along its thickness direction. The lifting seat 310 and the support plate 320 can be controllably raised and lowered together in the vertical direction relative to the machine base 100. The support plate 320 can rotate relative to the lifting seat 310 about an axis extending in the horizontal direction, so that the support surface 321 can be in a horizontal position parallel to the horizontal plane or an inclined position inclined relative to the horizontal plane. Thus, when the tilt angle of the support surface 321 is the same as the tilt angle of the inclined surface in the part, the inclined surface of the part can be parallel to the horizontal plane, so that the inclined surface of the part can be screwed in a horizontal state. Therefore, it is convenient to perform screw-screw ...

[0041] More specifically, in terms of the structure that enables the above actions to be realized, the lifting and tilting mechanism 300 includes a fixed plate 330 fixedly connected to the machine base 100, a vertical lifting cylinder 340 connected to the fixed plate 330, the output end of the vertical lifting cylinder 340 connected to the lifting seat 310, the lifting seat 310 having lifting plates 311 spaced vertically above the fixed plate 330; a support plate 320 spaced vertically above the lifting plates 311, and one end of the support plate 320 rotatably connected to the lifting plates 311; a tilting lifting cylinder 350 is also connected to the lifting seat 310, and the output end of the tilting lifting cylinder 350 is connected to the support plate 320. Driven by the vertical lifting cylinder 340, the lifting seat 310, the support plate 320 and the tilting lifting cylinder 350 can be raised and lowered as a whole in the vertical direction to lift the parts; driven by the tilting lifting cylinder 350, the support plate 320 can rotate relative to the lifting plate 311, so that the support surface 321 is in an inclined position relative to the horizontal plane.

[0042] Please continue reading. Figure 2Based on the above embodiment, the lifting seat 310 also includes a base plate 312, which is located vertically below the fixed plate 330 at intervals. The lifting plate 311 is connected to the base plate 312 by multiple guide columns 313. The fixed plate 330 is provided with multiple linear bearings (not shown in the figure), and each guide column 313 passes through a corresponding linear bearing, so that each guide column 313 passes through the fixed plate 330. In this way, when the lifting plate 311 moves up and down in the vertical direction, the base plate 312 and all the guide columns 313 can move up and down together, so that the lifting plate 311 can move up and down smoothly under the guidance of the guide columns 313, thereby avoiding deviation during the lifting operation and ensuring greater stability.

[0043] Optionally, the tilting lifting cylinder 350 is mounted on the base plate 312 and passes through the fixed plate 330 and the lifting plate 311. As the base plate 312 moves up and down, the tilting lifting cylinder 350 can also move up and down synchronously. It can be seen that with this arrangement, the space of the lifting tilting mechanism 300 can be fully utilized, making the lifting tilting mechanism 300 more compact and reducing the space occupied.

[0044] Alternatively, the support surface 321 of the support plate 320 is provided with multiple bosses 322 and positioning pins 323. The purpose of providing bosses 322 and positioning pins 323 is that since the surface of the part or tray has positioning holes and grooves, the bosses 322 are inserted into the grooves and the positioning pins 323 are inserted into the positioning holes, which can effectively position the part or tray and prevent the part or tray from falling off the support plate 320. Of course, the support plate 320 can only be provided with bosses 322 or only with positioning pins 323, and there is no particular limitation.

[0045] In a preferred embodiment, both the vertical lifting cylinder 340 and the tilting lifting cylinder 350 are servo electric cylinders. The advantage of using servo electric cylinders is that they come with limit switches, which can fix the lifting plate 311 at any position within the vertical stroke range and the support plate 320 at any angle within the stroke range without manual adjustment. This results in a high degree of automation and has significant advantages over hydraulic cylinders or pneumatic cylinders.

[0046] Furthermore, it is worth noting that when the support plate 320 lifts the part, a certain lifting force is applied to the part. In order to monitor the magnitude of the lifting force in real time and prevent the support plate 320 from damaging the part, a pressure sensor 360 is installed on the lifting seat 310 or the support plate 320. The pressure sensor 360 can monitor the magnitude of the lifting force in real time and provide an early warning when the lifting force is too large, so that the operator can take timely measures to prevent the part from being damaged.

[0047] In one embodiment, such as Figure 3As shown, pressure sensor 360 is mounted on lifting base 310. Specifically, as Figure 2 and Figure 5 As shown in the embodiment, the lifting seat 310 further includes a mounting plate 314 connected to the lifting plate 311. The mounting plate 314 is spaced above the lifting plate 311 and is arranged parallel to the lifting plate 311. The pressure sensor 360 is mounted on the mounting plate 314. The support plate 320 has clearance holes 324 extending through both sides of its thickness direction. When the support surface 321 is in a horizontal position, the mounting plate 314 is accommodated in the clearance holes 324, and the side surface of the mounting plate 314 facing away from the lifting plate 311 is flush with the support surface 321.

[0048] Thus, through the above structural design, it is possible to ensure that the pressure sensor 360 is close to the part and that the pressure sensor 360 is mounted on the mounting plate 314 which is always parallel to the horizontal plane, thereby ensuring that the pressure sensor 360 has high detection accuracy.

[0049] See Figure 6 In one embodiment, the mounting plate 314 has two surrounding plates 315 on the side facing the lifting plate 311. The two surrounding plates 315 are symmetrically arranged with a plane (not shown in the figure) extending in a vertical direction. Each surrounding plate 315 is "L"-shaped and includes a body 3151 extending in a vertical direction and an extension 3152 extending from one end of the body 3151 toward the other surrounding plate 315. The mounting plate 314 and all the surrounding plates 315 enclose to form a mounting position 301. The pressure sensor 360 is disposed in the mounting position 301 and attached to the side of the mounting plate 314 facing the top plate. The output end of the vertical lifting cylinder 340 has an output part 341. The output part 341 is also disposed in the mounting position 301 and located between the extension 3152 and the pressure sensor 360, so that the output part 341 can be confined in the mounting position 301 during movement and will not fall out of the mounting position 301.

[0050] Preferably, in the vertical direction, the gap between the pressure sensor 360 and the extension 3152 is larger than the size of the output portion 341. Thus, when the vertical lifting cylinder 340 drives the lifting seat 310 to move upwards in the vertical direction, the upper side of the output portion 341 abuts against the pressure sensor 360, and the lower side has a gap in the vertical direction with the extension 3152; when the vertical lifting cylinder 340 drives the lifting seat 310 to move downwards in the vertical direction, the lower side of the output portion 341 abuts against the extension 3152, and the upper side has a gap with the pressure sensor 360. Therefore, the output portion 341 is not rigidly connected to the pressure sensor 360 or to the extension 3152 of the enclosure plate 315 during operation, thus preventing damage to the output shaft of the vertical lifting cylinder 340 and extending its service life.

[0051] In a preferred embodiment, such as Figure 2 and Figure 5 As shown, the fixed plate 330 has multiple buffer columns 316 on the side facing the lifting plate 311. The end of the buffer column 316 away from the fixed plate 330 is made of a flexible material. For example, the flexible material can be silicone, polyurethane, or other materials. After the lifting plate 311 descends to a certain position, it can abut against the end of the buffer column 316 made of flexible material, so as to play a buffering role and avoid the lifting plate 311 from generating a large impact force when it comes into contact with the buffer column 316. This can play a certain protective role for the parts placed on the support plate 320.

[0052] Furthermore, regarding the transmission mechanism 500 structure, Figure 1 In the embodiments described above, the transmission mechanism 500 is a three-axis module, and its detailed structure can be found in the prior art, which will not be repeated here. Of course, the transmission mechanism 500 can also be a robotic arm, which is not limited here.

[0053] The specific structure of the screw fastening mechanism 400 can be referred to the structure of various screw fastening mechanisms 400 in the prior art, and will not be described in detail here. Figure 1 In the embodiments described, there are two screw fastening mechanisms 400. The two screw fastening mechanisms 400 can move closer to or further away from each other in the horizontal direction. Of course, the number of screw fastening mechanisms 400 is not limited and is not limited here.

[0054] Therefore, the screw fastening device 10 provided in this application, by setting the lifting and tilting mechanism 300 of the above structure, can quickly position the parts and adjust the parts to different angles, thereby meeting the needs of product structure size changes and having strong versatility. Moreover, the lifting and tilting mechanism 300 has a simple and compact structure and is easy to maintain.

[0055] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0056] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A screw fastening device, characterized in that, include: Machine (100); A lifting and tilting mechanism (300) is provided on the machine base (100). The lifting and tilting mechanism (300) includes a lifting seat (310) and a support plate (320) rotatably connected to the lifting seat (310). The support plate (320) has a support surface (321). The lifting seat (310) and the support plate (320) can be controllably raised and lowered together in the vertical direction relative to the machine base (100). The support plate (320) can rotate relative to the lifting seat (310) about an axis extending in the horizontal direction, so that the support surface (321) can be in a horizontal position parallel to the horizontal plane or in an inclined position inclined relative to the horizontal plane. The screw fastening mechanism (400) is movably connected to the machine base (100) and located above the lifting and tilting mechanism (300).

2. The screw fastening device according to claim 1, characterized in that, The lifting and tilting mechanism (300) further includes a fixed plate (330) connected to the machine base (100), a vertical lifting cylinder (340) connected to the fixed plate (330), the output end of the vertical lifting cylinder (340) connected to the lifting seat (310), the lifting seat (310) having lifting plates (311) spaced above the fixed plate (330) along the vertical direction; a support plate (320) spaced above the lifting plates (311) along the vertical direction and rotatably connected to the lifting plates (311); a tilting lifting cylinder (350) is also connected to the lifting seat (310), the output end of the tilting lifting cylinder (350) connected to the support plate (320).

3. The screw fastening device according to claim 2, characterized in that, A pressure sensor (360) is installed on the lifting seat (310) or the support plate (320).

4. The screw fastening device according to claim 3, characterized in that, The lifting seat (310) also includes a mounting plate (314) connected to the lifting plate (311). The mounting plate (314) is spaced above the lifting plate (311). The pressure sensor (360) is mounted on the mounting plate (314). The support plate (320) has clearance holes (324) extending through both sides of its thickness direction. When the support surface (321) is in the horizontal position, the mounting plate (314) is accommodated in the clearance holes (324), and the side surface of the mounting plate (314) facing away from the lifting plate (311) is flush with the support surface (321).

5. The screw fastening device according to claim 4, characterized in that, The mounting plate (314) has two surrounding plates (315) on the side facing the lifting plate (311). The two surrounding plates (315) are symmetrically arranged with a plane extending along the vertical direction as the symmetrical arrangement. Each surrounding plate (315) includes a body (3151) and an extension (3152) extending from one end of the body (3151) toward the other surrounding plate (315). The mounting plate (314) and all the surrounding plates (315) enclose to form a mounting position (301). The pressure sensor (360) is located in the mounting position (301). The output end of the vertical lifting cylinder (340) has an output part (341). The output part (341) is also located in the mounting position (301) and is located between the extension part (3152) and the pressure sensor (360).

6. The screw fastening device according to claim 5, characterized in that, In the vertical direction, the gap between the pressure sensor (360) and the extension (3152) is larger than the size of the output part (341).

7. The screw fastening device according to claim 2, characterized in that, The fixed plate (330) is provided with multiple buffer columns (316) on the side facing the lifting plate (311), and the end of the buffer column (316) away from the fixed plate (330) is made of flexible material.

8. The screw fastening device according to claim 2, characterized in that, The lifting seat (310) also includes a base plate (312), which is located at intervals below the fixed plate (330) along the vertical direction. The lifting plate (311) and the base plate (312) are connected by multiple guide columns (313), and each guide column (313) passes through the fixed plate (330).

9. The screw fastening device according to claim 1, characterized in that, The support surface (321) is provided with a plurality of bosses (322) and / or positioning pins (323).

10. The screw fastening device according to claim 1, characterized in that, The machine (100) has a screw fastening station (101), and the screw fastening equipment also includes a conveyor line (200) extending in a horizontal direction, the conveyor line (200) passing through the screw fastening station (101), and the lifting and tilting mechanism (300) located below the conveyor line (200) at the position of the screw fastening station (101).

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