A feeding mechanism and screw driving system

Abstract

The utility model provides a kind of feeding mechanism and screwing system, feeding mechanism includes mounting bracket, feed assembly, driving part and discharge assembly;Feed assembly and driving part are located in mounting bracket;Multiple feed channels are formed on feed assembly, and the outlet end of multiple feed channels is arranged on first circle interval;The diameter of different feed channels is different;Discharge assembly is formed with discharge channel, and the inlet end of discharge channel is located on first circle;Discharge assembly is connected with driving part, and can rotate around the axis of first circle under the drive of driving part, and then drive the inlet end of discharge channel to move on first circle, so that the inlet end of discharge channel can selectively butt joint with the outlet end of any feed channel;Feeding mechanism is used to connect with screw gun, to supply screw to screw gun, and the feeding mechanism is compatible with multiple specifications of screw, when replacing screw specification, operator does not need to manually replace the feed channel of conveying screw, reduce manual labor intensity.

Description

Technical Field

[0001] This invention belongs to the field of product assembly technology, specifically relating to a feeding mechanism and a screw-driving system. Background Technology

[0002] Screw driving is a common assembly process in modern industrial production. In practice, various screw types are used. There are two main methods for screw driving: one is for operators to manually drive screws using a hand-held screwdriver, changing both the screw and the screwdriver when the screw type needs to be changed; the other is to use automated equipment for automatic screw driving. However, each machine's feeding module only corresponds to one screw type and cannot accommodate multiple screw types. If a different screw type is needed, the feeding module's piping must be manually replaced, which is time-consuming and labor-intensive. Utility Model Content

[0003] The purpose of this invention is to provide a feeding mechanism and a screw-driving system that are compatible with different types of screws.

[0004] To achieve the above objectives, this utility model provides a feeding mechanism, comprising:

[0005] Mounting bracket;

[0006] A feeding assembly is mounted on the mounting bracket; the feeding assembly has multiple feeding channels, and the outlet ends of the multiple feeding channels are arranged at intervals on a first circle; the diameters of the different feeding channels are different.

[0007] A drive unit is provided on the mounting bracket; and,

[0008] The discharge assembly has a discharge channel formed thereon, the inlet end of the discharge channel being located on the first circle; the discharge assembly is connected to the drive unit and can rotate around the axis of the first circle under the drive unit, thereby driving the inlet end of the discharge channel to move on the first circle, so that the inlet end of the discharge channel can selectively dock with the outlet end of any of the feed channels.

[0009] Optionally, the feeding assembly includes a first mounting plate and a plurality of feeding pipes; the first mounting plate is provided with a plurality of first mounting through holes, which are spaced apart on the first circle; the different feeding pipes have different diameters, each feeding pipe is connected to the first mounting plate through a first mounting through hole, and the lumen of each feeding pipe constitutes at least a part of a feeding channel;

[0010] The outlet end of the feed channel is on the surface of the first mounting plate facing the discharge assembly.

[0011] Optionally, the discharge assembly includes a second mounting plate and a discharge pipe; the second mounting plate is disposed on the side of the first mounting plate opposite to the feed pipe and is also connected to the drive unit; the discharge pipe is connected to the second mounting plate, the cavity of the discharge pipe constitutes at least a part of the discharge channel, and the end of the discharge pipe facing the first mounting plate constitutes the inlet end of the discharge channel and abuts against the first mounting plate.

[0012] Optionally, the discharge pipe includes a pipe body, a sealing ring, and an elastic element; a portion of the pipe body is located on the side of the second mounting plate facing the first mounting plate, and another portion is located on the side of the second mounting plate away from the first mounting plate, the cavity of the pipe body forming at least a portion of the cavity of the discharge pipe; the sealing ring is sleeved on the portion of the pipe body located on the side of the second mounting plate facing the first mounting plate, and the end of the sealing ring away from the second mounting plate forms the inlet end of the discharge channel; the elastic element is disposed between the second mounting plate and the sealing ring, and stores elastic potential energy to apply pressure to the sealing ring along the second mounting plate towards the first mounting plate, such that the sealing ring presses against the first mounting plate.

[0013] Optionally, the discharge pipe further includes a limiting part, which is disposed on the outer peripheral surface of the pipe body near the first mounting plate and extends radially outward along the pipe body;

[0014] The sealing ring is provided with a second mounting through hole, which includes a first hole segment and a second hole segment arranged along the direction from the second mounting plate to the first mounting plate. The diameter of the first hole segment is smaller than the diameter of the second hole segment, so that a stepped surface is formed at the intersection of the first hole segment and the second hole segment. The diameter of the first hole segment is smaller than the outer diameter of the limiting part, and the outer diameter of the second hole segment is greater than or equal to the outer diameter of the limiting part.

[0015] The sealing ring is sleeved on the pipe body through the second mounting through hole, and the limiting part is located in the second hole section and abuts against the stepped surface; the cavity of the discharge pipe also includes a portion of the second hole section located on the side of the limiting part away from the first hole section.

[0016] Optionally, the second mounting plate is provided with a third mounting through hole;

[0017] The tube body includes a first tube body and a second tube body; the first tube body is connected to the second mounting plate through the third mounting through hole and is partially located on the side of the second mounting plate facing the first mounting plate; the second tube body is connected to the second mounting plate through the third mounting through hole and is partially located on the side of the second mounting plate away from the first mounting plate.

[0018] The first tube is a rigid tube, and the second tube is a flexible tube.

[0019] Optionally, the discharge assembly further includes a protective shell, the protective shell having an inner cavity, and the protective shell having two joints respectively communicating with the inner cavity. The two joints are arranged at intervals on a third circle that is coaxial with the first circle and has the same diameter, and are distributed on opposite sides of the inlet end of the discharge channel in the circumferential direction of the first circle.

[0020] When the inlet end of the discharge channel is connected to the outlet end of one of the feed channels, the outlet end of each of the remaining feed channels is connected to one of the joints.

[0021] Optionally, the outlet ends of the plurality of feed channels are arranged at equal intervals on the first circle.

[0022] Optionally, each of the joints includes at least n sub-joints, where n is a positive integer and is 1 less than the number of feed channels;

[0023] In the same joint, n sub-joints are arranged at equal intervals on the third circle, and the distance between two adjacent sub-joints and the circumferential distance between the sub-joint closest to the inlet end of the discharge channel and the inlet end of the discharge channel in the first circle are matched with the distance between the outlet ends of two adjacent feed channels.

[0024] To achieve the above objectives, this utility model also provides a screw-driving system, including a screw gun and a feeding mechanism as described in any of the preceding claims; the screw gun is detachably connected to the outlet end of the discharge channel.

[0025] Compared with the prior art, the feeding mechanism and screw-driving system of this utility model have the following advantages:

[0026] The aforementioned feeding mechanism includes a mounting bracket, a feeding assembly, a drive unit, and a discharging assembly. The feeding assembly is mounted on the mounting bracket. Multiple feeding channels are formed on the feeding assembly, and the outlet ends of these channels are spaced apart on a first circle. Different feeding channels have different diameters. The drive unit is mounted on the mounting bracket. The discharging assembly has a discharging channel, and the inlet end of the discharging channel is located on the first circle. The discharging assembly is connected to the drive unit and can rotate around the axis of the first circle under the drive unit's influence, thereby moving the inlet end of the discharging channel on the first circle so that the inlet end of the discharging channel can selectively connect with the outlet end of any feeding channel. The feeding mechanism is used to connect to a screw gun to supply screws to the screw gun. Each feeding channel of the feeding mechanism is adapted to a screw of a certain specification. Therefore, by driving the discharging assembly to rotate through the drive unit, the discharging channel can receive and transport screws of different specifications without requiring the operator to manually change the feeding channel, reducing labor intensity. Attached Figure Description

[0027] The accompanying drawings are provided to better understand this utility model and do not constitute an undue limitation thereof. Wherein:

[0028] Figure 1 This is a schematic diagram of the feeding mechanism provided by this utility model according to one embodiment;

[0029] Figure 2 This is a schematic diagram of the feeding mechanism provided according to an embodiment of the present invention. Figure 2 and Figure 1 The observation directions are different;

[0030] Figure 3 This is a schematic diagram of the feeding mechanism provided according to an embodiment of the present invention. Figure 3 and Figure 2 , Figure 1 The observation directions are all different;

[0031] Figure 4 This is a schematic diagram of the feeding mechanism provided according to an embodiment of the present invention, where the protective shell is not shown.

[0032] Figure 5 This is a partial structural schematic diagram of the feeding mechanism provided by this utility model according to an embodiment;

[0033] Figure 6 This is another partial structural schematic diagram of the feeding mechanism provided according to one embodiment of the present invention;

[0034] Figure 7This is another partial structural schematic diagram of the feeding mechanism provided according to an embodiment of the present invention;

[0035] Figure 8 This is a partial cross-sectional view of the feeding mechanism provided according to an embodiment of the present invention;

[0036] Figure 9 This is a cross-sectional view of the sealing ring of the feeding mechanism provided according to an embodiment of the present invention.

[0037] [The following are explanations of the reference numerals in the attached drawings]: 100-Mounting bracket, 110-Base plate, 120-Column, 130-Third mounting plate, 140-Fourth mounting plate, 200-Feeding assembly, 201-Feeding channel, 210-Feeding pipe, 220-First mounting plate, 221-First mounting plate body, 222-First clamping block, 300-Drive unit, 400-Discharge assembly, 401-Discharge channel, 410-Discharge pipe, 411-Pipe body, 412-Elastic element, 413-Sealing ring, 4131-First hole section, 4132-Second hole section, 4133-Step surface, 414-Limiting part, 420-Second mounting plate, 421-Second mounting plate body, 422-Second clamping block, 430-Protective shell, 431-Sub-joint. Detailed Implementation

[0038] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that the illustrations provided in this embodiment are only schematic representations of the basic concept of this utility model. Therefore, the drawings only show components related to this utility model and are not drawn according to the actual number, shape, and size of the components in implementation. In actual implementation, the type, quantity, and proportion of each component can be arbitrarily changed, and the component layout may also be more complex.

[0039] Furthermore, while each embodiment described below possesses one or more technical features, this does not imply that users of this utility model must simultaneously implement all technical features in any embodiment, or can only separately implement some or all technical features in different embodiments. In other words, provided it is feasible, those skilled in the art can selectively implement some or all technical features in any embodiment, or selectively implement a combination of some or all technical features in multiple embodiments, based on the disclosure of this utility model and depending on design specifications or implementation requirements, thereby increasing the flexibility in implementing this utility model.

[0040] As used herein, the singular forms “a,” “an,” and “the” include plural objects, and the plural form “a plurality” includes two or more objects, unless otherwise expressly indicated. As used herein, the term “or” is generally used to include the meaning of “and / or,” unless otherwise expressly indicated, and the terms “install,” “connect,” and “link” should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Connections can be mechanical or electrical. Connections can be direct or indirect through an intermediate medium, and can represent internal communication between two elements or an interaction between two elements. Relational terms such as “first,” “second,” etc., are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations, nor do they indicate relative importance or implicitly specify the number of indicated technical features. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0041] The purpose of this invention is to provide a feeding mechanism for feeding screws into a screw gun, and the feeding mechanism has the advantage of being compatible with multiple sizes of screws.

[0042] To make the objectives, advantages, and features of this utility model clearer, the following detailed description is provided in conjunction with the accompanying drawings. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to conveniently and clearly illustrate the objectives of the embodiments of this utility model. The same or similar reference numerals in the drawings represent the same or similar parts.

[0043] As 1 to Figure 4 A schematic diagram of the feeding mechanism is shown. Figures 5 to 7 Different partial structural diagrams of the feeding mechanism are shown. For example... Figures 1 to 7As shown, the feeding mechanism includes a mounting bracket 100, a feeding assembly 200, a driving unit 300, and a discharging assembly 400. The feeding assembly 200 is mounted on the mounting bracket 100 and has multiple feeding channels 201 with different diameters; the outlet ends of the multiple feeding channels 201 are spaced apart on a first circle. The driving unit 300 is mounted on the mounting bracket 100 and connected to the discharging assembly 400. The discharging assembly 400 has discharging channels 401, the inlet end of which is located on the first circle. The discharging assembly 400 can rotate around the axis of the first circle under the drive of the driving unit 300, thereby moving the inlet end of the discharging channel 401 on the first circle, allowing the inlet end of the discharging channel 401 to selectively engage with the outlet end of any of the feeding channels 201.

[0044] The feeding mechanism is used in conjunction with a screw gun to form a screw-driving system. When the screw-driving system is in operation, the inlet end of the discharge channel 401 is connected to the outlet end of one of the feed channels 201, and the outlet end of the discharge channel 401 is connected to the screw gun, so that the screw supply mechanism can deliver screws to the screw gun via the feeding mechanism.

[0045] In this embodiment of the invention, the diameter of each feeding channel 201 is adapted to a screw of a certain specification. Since the diameters of the different feeding channels 201 of the feeding mechanism are different, the feeding mechanism can adapt to screws of various specifications. During screw assembly, if the screw specification needs to be changed, only the screw gun connected to the outlet end of the discharge channel 401 needs to be replaced, and the drive unit 300 drives the discharge assembly 300 to rotate, causing the inlet end of the discharge channel 401 to move and align with the outlet end of the corresponding feeding channel 201. That is, the operator does not need to manually replace the feeding channel 201 aligned with the discharge channel 401, reducing the operator's labor intensity and increasing the replacement speed, thereby increasing the assembly speed.

[0046] For ease of description, the feeding channel 201 that connects to the inlet end of the discharge channel 401 will be referred to as the target feeding channel, and the feeding channel that does not connect to the inlet end of the discharge channel 401 will be referred to as the non-target feeding channel. That is, during the screw-driving operation, the screw is fed from the target feeding channel into the discharge channel 401 and then further fed into the screwdriver.

[0047] The structure of the feeding mechanism will be further described below.

[0048] The mounting bracket 100 includes a base plate 110, a column 120, a third mounting plate 130, and a fourth mounting plate 140. The column 120, the mounting plate 130, and the fourth mounting plate 140 are disposed on the same side of the base plate 110. The third mounting plate 130 is connected to the base plate 110. The fourth mounting plate 140 is connected to the base plate 110 via the column 120, and an accommodating space is formed between the fourth mounting plate 140 and the base plate 110.

[0049] The feeding assembly 200 is connected to the third mounting plate 130 and is located on the side of the fourth mounting plate 140 away from the base plate 110. The drive unit 300 is disposed within the accommodating space and is connected to the fourth mounting plate 140. The discharge assembly 400 is connected to the output end of the drive unit 300 and is located on the side of the feeding assembly 200 facing the base plate 110.

[0050] The drive unit 300 may include a motor, preferably a stepper motor.

[0051] The feeding assembly 200 includes a feeding pipe 210 and a first mounting plate 220. The first mounting plate 220 is connected to the mounting bracket 100, specifically to the third mounting plate 130. The first mounting plate 220 has a plurality of first mounting through holes (not shown in the figure), which are spaced apart on the first circle. There are multiple feeding pipes 210, each of which is disposed on the first mounting plate 220 through one of the first mounting through holes, such that a portion of the feeding pipe 210 is located within the first mounting through hole, and another portion is located on the side of the first mounting plate 220 away from the discharging assembly 400.

[0052] In some examples, the end of the feed pipe 210 facing the discharge assembly 400 is inserted into the corresponding first mounting through hole, and the end face of the end of the feed pipe 210 facing the discharge assembly 400 is flush with the surface of the first mounting plate 220 facing the discharge assembly 200. Thus, the cavity of the feed pipe 210 constitutes the feed channel 201, and the end of the feed pipe 210 located in the first mounting through hole constitutes the outlet end of the feed channel 201. In other examples, the end of the feed pipe 210 facing the discharge assembly 400 is located in the corresponding first mounting through hole, and the end face of the feed pipe 210 facing the discharge assembly 400 is not flush with the surface of the first mounting plate 220 facing the discharge assembly 400. Thus, the cavity of the feed pipe 210 and the portion of the corresponding first mounting through hole located on the side of the feed pipe 210 near the discharge assembly 400 together constitute the feed channel 201, and the end of the first mounting through hole away from the feed pipe 210 constitutes the outlet end of the feed channel 201. In other words, the outlet end of the feed channel 201 is on the surface of the first mounting plate 220 facing the discharge assembly 400.

[0053] In this embodiment of the present invention, the feed pipe 210 can be connected to the first mounting plate 220 in any suitable manner. In an optional example, the first mounting plate 220 includes a first mounting plate body 221, a first clamping block 222, and a first locking bolt (not shown in the figure). The first mounting plate body 221 is provided with a plurality of first sub-through holes, which are spaced apart on the first circle. There are multiple first clamping blocks 222, each corresponding to one first sub-through hole and connected to the first mounting plate body 221. The first clamping block 222 is provided with a first channel communicating with the first sub-through hole, and the first channel and the corresponding first sub-through hole together constitute the first mounting through hole. When installing the feed pipe 210, the feed pipe 210 is first partially inserted into the first channel of the first clamping block 222, and then the first clamping block 222 is locked by the first locking bolt to fix the feed pipe 210 on the first mounting plate 220. The construction of the first clamping block 222 is well known in the art and will not be described in detail here. In another optional example, the feed tube is partially inserted into the first mounting through hole, and the outer wall of the feed tube is bonded or welded to the hole wall of the first mounting through hole.

[0054] The discharge assembly 400 includes a discharge pipe 410 and a second mounting plate 420. The second mounting plate 420 is connected to the drive unit 200 and rotates about the axis of the first circle under the drive of the drive unit 200. The discharge pipe 410 is connected to the second mounting plate 420 and rotates with the rotation of the second mounting plate 420.

[0055] The second mounting plate 420 is located on the side of the first mounting plate 220 facing the base plate 110, and is spaced apart from the first mounting plate 220. A portion of the discharge pipe 410 is located on the side of the second mounting plate 420 close to the first mounting plate 220, and another portion is located on the side of the second mounting plate 420 away from the first mounting plate 220. The lumen of the discharge pipe 410 forms at least a portion of the discharge channel 401, and the end of the discharge pipe 410 facing the first mounting plate 220 forms the inlet end of the discharge channel 401.

[0056] The end of the discharge pipe 410 facing the mounting plate 220 presses against the surface of the first mounting plate 220 facing the second mounting plate 420. This arrangement is because, under air pressure, the screw enters the discharge channel 401 from the target feed channel and further into the screw cavity. Pressing the end of the discharge pipe 410 facing the mounting plate 220 against the surface of the first mounting plate 220 facing the second mounting plate 420 ensures there is no gap between the inlet end of the discharge channel 401 and the outlet end of the target feed channel, reducing gas leakage and maintaining air pressure in both the discharge channel 401 and the target feed channel. This ensures the screw can be transported from the target feed channel to the discharge channel 401 and further fed into the screw gun from the discharge channel 401.

[0057] Optionally, the discharge pipe 410 includes a pipe body 411, an elastic element 412, and a sealing ring 413. A portion of the pipe body 411 is located on the side of the second mounting plate 420 facing the first mounting plate 220, and another portion is located on the side of the second mounting plate 420 away from the first mounting plate 220. The sealing ring 413 is sleeved on the portion of the pipe body 411 located on the side of the second mounting plate 420 facing the first mounting plate 220, and the end of the sealing ring 413 away from the second mounting plate 420 constitutes the inlet end of the discharge pipe 410. The elastic element 412 is disposed between the second mounting plate 420 and the sealing ring 413. The elastic element 412 stores elastic potential energy and applies pressure to the sealing ring 413 along the direction from the second mounting plate 420 to the first mounting plate 220, so as to press the sealing ring 413 against the first mounting plate 220, thereby achieving the effect of pressing the inlet end of the discharge pipe 410 against the first mounting plate 220.

[0058] Optionally, such as Figure 8 As shown, the discharge pipe 410 also includes a limiting part 414, which is disposed at one end of the pipe body 413 facing the first mounting plate 220 and extends radially outward along the pipe body 414. Figure 8 and Figure 9 As shown, the sealing ring 413 is provided with a second mounting through hole (not marked in the figure). The second mounting through hole includes a first hole segment 4131 and a second hole segment 4132 arranged along the direction from the second mounting plate 420 to the first mounting plate 220. The diameter of the second hole segment 4132 is larger than the diameter of the first hole segment 4131, so that the intersection of the second hole segment 4132 and the first hole segment 4131 forms a stepped surface 4133. The diameter of the first hole segment 4131 is smaller than the outer diameter of the limiting part 414, and the diameter of the second hole segment 4132 is greater than or equal to the outer diameter of the limiting part 414. The sealing ring 413 is sleeved on the portion of the pipe body 411 located between the limiting part 414 and the second mounting plate 420 through the second mounting through hole 413, and the limiting part 414 is located within the second hole segment 4132 and abuts against the stepped surface 4133. Thus, the sealing ring 413 does not detach from the tube body 411 under the cooperation of the limiting part 414 and the stepped surface 4133.

[0059] It is understood that the cavity of the discharge pipe 410 includes the cavity of the pipe body 411 and the portion of the second hole section 4132 located on the side of the limiting part 414 away from the first hole section 4131.

[0060] Optionally, the pipe body 411 includes a first pipe and a second pipe (not shown in the figure), both connected to and communicating with the second mounting plate. The first pipe is at least partially located on the side of the second mounting plate 420 facing the first mounting plate 220 and is a rigid pipe. The second pipe is at least partially located on the side of the second mounting plate 420 away from the first mounting plate 220 and is a flexible pipe. "Rigid pipe" refers to the first pipe having higher hardness and being less prone to deformation, while "flexible pipe" refers to the second pipe having lower hardness and being more easily deformed. In practice, the first pipe can be a metal pipe, such as a stainless steel pipe, and the second pipe can be a flexible plastic pipe. It is understood that the lumen of the pipe body 411 includes the lumen of the first pipe and the lumen of the second pipe.

[0061] It is easy to understand that the sealing ring 413 is sleeved on the first tube body. By making the first tube body a rigid tube, it can be ensured that the sealing ring 413 can be pressed against the first mounting plate 220 under the action of the elastic member 412. Alternatively, the elastic member 412 can be a spring, which is sleeved on a portion of the outer surface of the first tube body.

[0062] The second mounting plate 420 is provided with a third mounting through hole (not shown in the figure). Both the first tube and the second tube are connected to the second mounting plate 420 through the third mounting through hole.

[0063] In an optional example, the second mounting plate 420 includes a second mounting plate body 421, a second clamping block 422, and a second locking bolt (not shown in the figure). The second mounting plate body 421 has a second sub-through hole located on a second circle coaxial with and of the same diameter as the first circle. The second clamping block 422 is disposed on the surface of the second mounting plate body 421 away from the first mounting plate 220, and the second clamping block 422 has a second channel communicating with the second sub-through hole. The second channel and the second sub-through hole together constitute the third mounting through hole.

[0064] When assembling the second mounting plate 420 and the first tube, first insert one end of the first tube into the second sub-through hole, and then lock the first tube onto the second mounting plate body 421 using a set screw. When assembling the second mounting plate 420 and the second tube, first partially insert the second tube into the second channel, and then use the second locking bolt to lock the second clamping block 422, thereby connecting the second tube and the second mounting plate 420.

[0065] It is understood that if the first tube body and the second tube body are in contact, the discharge channel 401 includes the cavity of the discharge pipe 410. If the first tube body and the second tube body are not in contact, the discharge channel 401 includes not only the cavity of the discharge pipe 410, but also the portion of the third mounting through hole located between the first tube body and the second tube body.

[0066] Preferably, the discharge assembly 400 further includes a protective shell 430, which is connected to the second mounting plate 420. The protective shell 430 has an inner cavity (not shown in the figure). The protective shell 430 is also provided with two joints (not labeled in the figure) communicating with the inner cavity. The two joints are spaced apart on a third circle that is coaxial with the first circle and has the same diameter. When viewed from the circumference of the first circle or from the circumference of the third circle, the two joints are located on opposite sides of the inlet end of the discharge channel 401. The feeding mechanism is configured such that when the inlet end of the discharge channel 401 is connected to the outlet end of the target feed channel, the outlet end of each non-target feed channel is connected to one of the joints 431. The surface of the protective shell 430 facing the first mounting plate 420 is in contact with the first mounting plate 420, or although they are not in contact, the distance between them is extremely small. Thus, if an error occurs during operation, causing a screw to be transmitted through the non-target feed channel, the screw transmitted through the non-target feed channel can enter the inner cavity of the protective shell 430 through the joint, preventing the screw from flying out from the outlet end of the non-target feed channel and causing injury to people or objects. It is understood that when the surface of the protective shell 430 facing the first mounting plate 420 is in contact with the first mounting plate 420, the third circle coincides with the first circle.

[0067] Within the same joint, the number of sub-joints 431 is n, where n is a positive integer and greater than or equal to m-1, where m represents the number of feed tubes 210. In a preferred example, the outlet ends of multiple feed channels 201 are arranged at equal intervals on the first circle. Accordingly, each joint includes multiple sub-joints 431. The n sub-joints 431 of the same joint are arranged at equal intervals on the third circle, and the distance between two adjacent sub-joints 431 matches the distance between the outlet ends of two adjacent feed channels 201. Furthermore, in the circumferential direction of the first circle, the distance between the sub-joint 431 closest to the inlet end of the outlet channel 401 and the inlet end of the outlet channel 401 also matches the distance between the outlet ends of two adjacent feed channels 201. Thus, when the inlet end of the outlet channel 401 is connected to the outlet end of the target feed channel, the outlet end of each non-target feed channel is connected to one sub-joint 431.

[0068] Optionally, one end of the discharge pipe 410 facing the first mounting plate 220 penetrates the protective shell 430 and abuts against the first mounting plate 220. Thus, the portion of the first pipe body outside the third mounting through hole, the elastic element 412, and the portion of the sealing ring 413 near the elastic element 412 can all be located within the inner cavity of the protective shell 430. The portion of the sealing ring 413 away from the elastic element 412 penetrates the wall of the protective shell 430 facing the first mounting plate 220, and the end face of the end of the sealing ring 413 away from the elastic element 412 is flush with or slightly protrudes from the surface of the protective shell 430 facing the first mounting plate 220.

[0069] Furthermore, this utility model embodiment also provides a screw-driving system, which includes the aforementioned feeding mechanism and screw gun, wherein the screw gun is detachably connected to the outlet end of the discharge channel 401.

[0070] It is easy to understand that when it is necessary to change the type of screw, in addition to controlling the drive unit 300 to drive the discharge assembly 400 to rotate, it is also necessary to replace the screw gun connected to the outlet end of the discharge pipe 410.

[0071] Furthermore, the screw-driving system also includes a detection module and an alarm module. The detection module can be installed on the screw gun and is configured to detect whether a screw has entered the screw gun during normal operation of the screw-driving system. The alarm module is communicatively connected to the detection module and is configured to generate and display an alarm message when the detection module does not detect a screw entering the screw gun during normal operation of the screw-driving system.

[0072] While the present invention has been disclosed above, it is not limited thereto. Those skilled in the art can make various modifications and variations to the present invention without departing from its spirit and scope. Therefore, if such modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention also intends to include such modifications and variations.

Claims

1. A feeding mechanism, characterized in that, include: Mounting bracket; A feeding assembly is mounted on the mounting bracket; the feeding assembly has multiple feeding channels, and the outlet ends of the multiple feeding channels are arranged at intervals on a first circle; the diameters of the different feeding channels are different. A drive unit is provided on the mounting bracket; and, The discharge assembly has a discharge channel formed thereon, the inlet end of the discharge channel being located on the first circle; the discharge assembly is connected to the drive unit and can rotate around the axis of the first circle under the drive unit, thereby driving the inlet end of the discharge channel to move on the first circle, so that the inlet end of the discharge channel can selectively dock with the outlet end of any of the feed channels.

2. The feeding mechanism according to claim 1, characterized in that, The feeding assembly includes a first mounting plate and a plurality of feeding pipes; the first mounting plate is provided with a plurality of first mounting through holes, which are spaced apart on the first circle; the different feeding pipes have different diameters, each feeding pipe is connected to the first mounting plate through a first mounting through hole, and the cavity of each feeding pipe constitutes at least a part of the feeding channel; The outlet end of the feed channel is on the surface of the first mounting plate facing the discharge assembly.

3. The feeding mechanism according to claim 2, characterized in that, The discharge assembly includes a second mounting plate and a discharge pipe; the second mounting plate is disposed on the side of the first mounting plate opposite to the feed pipe and is also connected to the drive unit; the discharge pipe is connected to the second mounting plate, the cavity of the discharge pipe constitutes at least a part of the discharge channel, and the end of the discharge pipe facing the first mounting plate constitutes the inlet end of the discharge channel and abuts against the first mounting plate.

4. The feeding mechanism according to claim 3, characterized in that, The discharge pipe includes a pipe body, a sealing ring, and an elastic element; a portion of the pipe body is located on the side of the second mounting plate facing the first mounting plate, and another portion is located on the side of the second mounting plate away from the first mounting plate, and the cavity of the pipe body constitutes at least a portion of the cavity of the discharge pipe; the sealing ring is sleeved on the portion of the pipe body located on the side of the second mounting plate facing the first mounting plate, and the end of the sealing ring away from the second mounting plate constitutes the inlet end of the discharge channel; the elastic element is disposed between the second mounting plate and the sealing ring, and stores elastic potential energy to apply pressure to the sealing ring along the second mounting plate towards the first mounting plate, so that the sealing ring presses against the first mounting plate.

5. The feeding mechanism according to claim 4, characterized in that, The discharge pipe also includes a limiting part, which is disposed on the outer peripheral surface of the end of the pipe body near the first mounting plate and extends outward along the radial direction of the pipe body. The sealing ring is provided with a second mounting through hole, which includes a first hole segment and a second hole segment arranged along the direction from the second mounting plate to the first mounting plate. The diameter of the first hole segment is smaller than the diameter of the second hole segment, so that a stepped surface is formed at the intersection of the first hole segment and the second hole segment. The diameter of the first hole segment is smaller than the outer diameter of the limiting part, and the outer diameter of the second hole segment is greater than or equal to the outer diameter of the limiting part. The sealing ring is sleeved on the pipe body through the second mounting through hole, and the limiting part is located in the second hole section and abuts against the stepped surface; the cavity of the discharge pipe also includes a portion of the second hole section located on the side of the limiting part away from the first hole section.

6. The feeding mechanism according to claim 4, characterized in that, The second mounting plate is provided with a third mounting through hole; The tube body includes a first tube body and a second tube body; the first tube body is connected to the second mounting plate through the third mounting through hole and is partially located on the side of the second mounting plate facing the first mounting plate; the second tube body is connected to the second mounting plate through the third mounting through hole and is partially located on the side of the second mounting plate away from the first mounting plate. The first tube is a rigid tube, and the second tube is a flexible tube.

7. The feeding mechanism according to claim 1, characterized in that, The discharge assembly further includes a protective shell, which has an inner cavity and two joints communicating with the inner cavity. The two joints are arranged at intervals on a third circle that is coaxial with the first circle and has the same diameter, and are distributed on opposite sides of the inlet end of the discharge channel in the circumferential direction of the first circle. When the inlet end of the discharge channel is connected to the outlet end of one of the feed channels, the outlet end of each of the remaining feed channels is connected to one of the joints.

8. The feeding mechanism according to claim 7, characterized in that, The outlet ends of the plurality of feed channels are arranged at equal intervals on the first circle.

9. The feeding mechanism according to claim 8, characterized in that, Each of the said joints includes at least n sub-joints, where n is a positive integer and n is 1 less than the number of the feed channels; In the same joint, n sub-joints are arranged at equal intervals on the third circle, and the distance between two adjacent sub-joints and the distance between the sub-joint closest to the inlet end of the discharge channel and the inlet end of the discharge channel in the circumferential direction of the first circle are matched with the distance between the outlet ends of two adjacent feed channels.

10. A screw-driving system, characterized in that, It includes a screw gun and a feeding mechanism as described in any one of claims 1-9; the screw gun is detachably connected to the outlet end of the discharge channel.

Images