Nail receiving mechanism and nail moving device and system applying nail receiving mechanism

Abstract

The utility model provides a screw receiving mechanism and a screw moving device and system applying the same, and relates to the technical field of automatic screw assembling, the screw receiving mechanism comprises a first limiting part, a second limiting part and a third limiting part, an arc-shaped second notch is formed in the end part of the second limiting part; the first limiting part and the second limiting part are oppositely arranged, so that the end, where the first notch is located, of the first limiting part is placed in the second notch, the first notch and the second notch surround to form a limiting area, and the inner diameter of the limiting area is smaller than that of the end of a screw. The screw rod portion enters the limiting area, and the end portion of the screw is located outside the limiting area, so that the problems that according to the design of an existing screw receiving base, the lower portion of the screw is prone to being clamped or the screw is inclined, follow-up screw suction is affected, and working efficiency is affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automatic screw assembly, in particular to a nail connecting mechanism and a nail moving device and a system using the nail connecting mechanism. Background Art

[0002] Automatic screwdriving equipment, such as screw tightening machines, is widely used in the automation field, primarily to improve production efficiency, reduce labor costs, and optimize assembly quality. To improve assembly efficiency and reduce the risk of screw drop, existing equipment uses a method of blowing the screw into the screw holder. A pneumatic cylinder then drives the screw from the holder under the screwdriver bit, where it is automatically tightened through vacuum suction.

[0003] Most of the existing nail connectors are designed in a "funnel" shape, and their application is to clamp the nut part of the screw through the neck. However, this device requires that the lower part of the "funnel" and the stud size chain of the screw must be very well matched to prevent the lower nail from being stuck or the screw from being skewed when the nail is blown into the nail connector. However, this structural design has very high requirements for the processing and assembly of parts. In the actual production process, nails often get stuck, resulting in the inability to absorb the screws, thereby interrupting the tightening process and seriously affecting production efficiency. Utility Model Content

[0004] In order to overcome the above technical defects, the purpose of the present invention is to provide a nail connecting mechanism and a nail moving device and system using the nail connecting mechanism, so as to solve the problem that the design of the existing nail connecting seat is prone to nail jamming at the bottom or screw skewness, which affects subsequent nail absorption and affects work efficiency.

[0005] The utility model discloses a nail connecting mechanism, comprising:

[0006] A first limiting portion, an end portion of which forms a first arc-shaped notch;

[0007] A second limiting portion, an end portion of which forms a second arc-shaped notch;

[0008] The first limiting portion and the second limiting portion are arranged relative to each other, so that the end of the first limiting portion where the first notch is located is placed in the second notch, and the first notch and the second notch surround each other to form a limiting area, wherein the inner diameter of the limiting area is smaller than the end of the screw, so that the screw rod enters the limiting area and the screw end is outside the limiting area.

[0009] Preferably, the second limiting portion includes a first connecting portion, a second connecting portion and a third connecting portion;

[0010] The first connecting portion and the second connecting portion are parallel to each other and connected at their ends by the third connecting portion;

[0011] The second notch is located at an end of the first connecting portion away from the third connecting portion;

[0012] The first connecting portion extends to surround the end portion of the first limiting portion where the first notch is located;

[0013] The second connecting portion extends to the bottom of the first limiting portion;

[0014] The first limiting portion and the first connecting portion form a circumferential side wall of the limiting area, and the second connecting portion forms a bottom wall of the limiting area.

[0015] Preferably, the distance between the second connecting portion and the first connecting portion is set so that when the screw shank is located in the limiting area, one end contacts the bottom wall of the limiting area and the other end partially extends out of the limiting area.

[0016] Preferably, it further comprises a first driving mechanism for controlling the first limiting portion and the second limiting portion to move relative to or opposite to each other, so that the limiting area opens and closes.

[0017] Preferably, the first driving mechanism comprises:

[0018] a first clamping jaw cylinder connected to and acting on a side of the first limiting portion away from the first notch;

[0019] A second clamping claw cylinder is connected to and acts on a side of the second limiting portion away from the second notch.

[0020] The utility model also discloses a nail moving device.

[0021] Apply any one of the above-mentioned nail connection mechanisms;

[0022] Also includes:

[0023] A nail guide mechanism, one end of which extends to the nail feeding mechanism and the other end extends to the nail connecting mechanism, so that the screw is placed in the limiting area of ​​the nail connecting mechanism through the top nail guide mechanism;

[0024] The nail moving mechanism is used to absorb nails from the nail connecting mechanism.

[0025] Preferably, it further comprises a second driving mechanism connected to the nail connecting mechanism and used for driving the nail connecting mechanism to move.

[0026] Preferably, the nail guiding mechanism and the nail moving mechanism are arranged side by side in the vertical direction;

[0027] The nail connecting mechanism reciprocates along corresponding positions of the nail guiding mechanism and the nail moving mechanism.

[0028] Preferably, the nail moving mechanism includes a vacuum tube that provides negative pressure.

[0029] The present utility model also discloses a nail moving system, comprising a plurality of nail moving devices as described in any one of the above items;

[0030] The nail moving devices are arranged in parallel and are controlled synchronously to move the nails.

[0031] Compared with the existing technology, the above technical solution has the following beneficial effects:

[0032] 1. The first and second limiting portions define a limiting area, which constrains the screw shank and leaves the end exposed. This allows the screw to stand within the limiting area of ​​the nail connection mechanism. When a nail needs to be removed (or absorbed), the end of the screw can be simply absorbed. This solves the problem of existing nail connection holders prone to nail jamming or screw skew, which affects subsequent nail absorption and reduces work efficiency.

[0033] 2. Integrate the nail guide mechanism and the nail moving mechanism, arrange the nail connecting mechanism at the corresponding position of the nail guide mechanism, place the screws on the nail connecting mechanism through the nail guide mechanism, and then move the nail mechanism to the corresponding position of the nail moving mechanism, so that the nail moving mechanism removes the screws from the nail connecting mechanism by negative pressure adsorption, realizing an autonomous nail moving process. In this process, the screws are restricted in the limit area, and the risk of tilting or failure to adsorb is low, which effectively improves work efficiency and can further realize batch nail moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 Schematic diagrams of the structures of embodiments 1 to 3 of a nail joining mechanism and a nail moving device and system using the nail joining mechanism according to the present invention;

[0035] Figure 2 This is a structural schematic diagram of the second limiting portion in Embodiments 1 to 3 of a nail connecting mechanism and a nail moving device and system using the nail connecting mechanism of the present invention;

[0036] Figure 3 This is a schematic structural diagram of the limiting area in Embodiments 1 to 3 of a nail connecting mechanism and a nail moving device and system using the nail connecting mechanism of the present invention;

[0037] Figure 4 It is a structural schematic diagram of a nail connecting mechanism and a nail moving device and system embodiment 2 using the nail connecting mechanism of the present invention.

[0038] Reference numerals:

[0039] 0-screw; 01-screw end; 02-screw rod; 1-first limiting part; 11-first notch; 12-first supporting part; 13-second supporting part; 2-second limiting part; 21-second notch; 22-first connecting part; 23-second connecting part; 24-third connecting part; 3-limiting area; 4-first driving mechanism; 6-nail moving mechanism. DETAILED DESCRIPTION

[0040] The advantages of the present invention are further described below with reference to the accompanying drawings and specific embodiments.

[0041] Exemplary embodiments will be described in detail herein, with examples illustrated in the accompanying drawings. In the following description, when referring to the drawings, identical numerals in different figures represent identical or similar elements, unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all possible embodiments consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the present disclosure, as detailed in the appended claims.

[0042] The terms used in this disclosure are for the purpose of describing specific embodiments only and are not intended to limit the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," "the," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0043] It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, such information should not be limited to these terms. These terms are only used to distinguish information of the same type from each other. For example, without departing from the scope of this disclosure, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determining."

[0044] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0045] In the description of the present utility model, unless otherwise specified and limited, it should be noted that the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the internal connection between two components. It can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances.

[0046] In the following description, the suffixes such as "module", "component" or "unit" used to represent elements are only used to facilitate the description of the present invention and have no specific meaning. Therefore, "module" and "component" can be used interchangeably.

[0047] Example 1: This embodiment discloses a nail connecting mechanism that can be used in the scene of automatic screw assembly to overcome the problem that the existing structure easily causes the screw 0 to tilt and get stuck, thereby affecting work efficiency. For details, please refer to Figure 1-Figure 4 ,include:

[0048] A first limiting portion 1, an end of which forms an arc-shaped first notch 11;

[0049] The second limiting portion 2 has an arc-shaped second notch 21 formed at its end;

[0050] The first limiting portion 1 and the second limiting portion 2 are arranged relative to each other, so that the end of the first limiting portion 1 where the first notch 11 is located is placed in the second notch 21, and the first notch 11 and the second notch 21 surround to form a limiting area 3, wherein the inner diameter of the limiting area 3 is smaller than the screw end 01, so that the screw rod 02 enters the limiting area 3 and the screw end 01 is outside the limiting area 3.

[0051] In this embodiment, the nail connection structure is composed of two opposing parts, namely the first limiting portion 1 and the second limiting portion 2. The first limiting area 3 and the second limiting area 3 are opposite each other and located on the same horizontal plane, forming the limiting area 3. The screw 0 enters the limiting area 3 in the vertical direction. It will be understood that the first notch 11 and the second notch 21 have different inner diameters, and the second notch 21 is larger than the first notch 11, so that the first notch 11 can be partially surrounded by the second notch 21, thereby forming the limiting area 3. In other words, the first limiting portion 1 and the second limiting portion 2 actually form a portion of the limiting area 3.

[0052] Specifically, the formed limiting area 3 restricts the screw shank 02 therein while the screw end 01 is exposed outside the limiting area 3. It can be understood that the screw end 01 is often umbrella-shaped, and its inner diameter is larger than the screw shank 02. In this embodiment, the shank enters the limiting area 3, so that the screw 0 can stand in the limiting area 3 of the nail connection mechanism. When the nail needs to be moved (sucked), the adsorption effect as described in the following embodiment 2 can be applied to the screw end 01. Since only the screw shank 02 is restricted and unlike the existing "funnel" design, there is no area with a gradually decreasing inner diameter. The screw naturally droops in the limiting area 3 and will not tilt and get stuck under the action of gravity.

[0053] In this embodiment, the second limiting portion 2 includes a first connecting portion 22, a second connecting portion 23 and a third connecting portion 24; the first connecting portion 22 and the second connecting portion 23 are parallel to each other and are connected at the end by the third connecting portion 24; the second notch 21 is located at the end of the first connecting portion 22 on the side away from the third connecting portion 24; the first connecting portion 22 extends to the end surrounding the first notch 11 on the first limiting portion 1; the second connecting portion 23 extends to the bottom of the first limiting portion 1; the first limiting portion 1 and the first connecting portion 22 form the circumferential side wall of the limiting area 3, and the second connecting portion 23 forms the bottom wall of the limiting area 3.

[0054] Based on the above, the first connecting portion 22 on the second limiting portion 2 forms a penetrating second notch 21, while the second connecting portion 23 closes the second notch 21 at the bottom, i.e., the limiting area 3 is not completely continuous from top to bottom. The second limiting portion 2 forms a bottom wall, so that when the screw 0 is located in the limiting portion, the end of the screw shank 02 contacts the upper surface of the second connecting portion 23. The first limiting area 3 and the second limiting area 3 are opposite, and the screw 0 is located in the limiting area 3 in the vertical direction, forming a clamping shape. The second limiting portion 2 closes the bottom wall of the limiting area 3, which can further reduce the risk of the screw 0 moving out of the limiting area 3.

[0055] In this embodiment, when the screw 0 is positioned within the limiting zone 3, the second connecting portion 23 provides some support for the end face of the screw shank 02 (the end face facing away from the screw end 01). The end face of the screw shank 02 is often flat, which mates with the upper surface of the second connecting portion 23, thereby enabling the screw 0 to stand upright. Furthermore, optionally, the distance between the second connecting portion 23 and the first connecting portion 22 is configured such that, when the screw shank 02 is positioned within the limiting zone 3, one end contacts the bottom wall of the limiting zone 3, while the other end partially extends beyond the limiting zone 3. Specifically, the distance from the top surface of the first connecting portion 22 to the top surface of the second connecting portion 23 (the upper surface of the nail connection mechanism) is less than the length of the screw shank 02, resulting in incomplete contact between the screw end 01 and the top surface of the first connecting portion 22. This design is intended to reduce the risk of the screw tilting. Due to mass production of screws, the lower surface of the screw end 01 may not be completely flat, which could cause the screw 0 to tilt when positioned within the limiting zone 3. In this embodiment, the upper surface of the second connecting portion 23 supports the screw, enabling it to stand upright.

[0056] In this embodiment, the upper surfaces of the above-mentioned first connecting portion 22 and the first limiting portion 1 can preferably be maintained in the same plane, so that the opening of the limiting area 3 of the nail connecting mechanism has a plane. Specifically, as an option, the first limiting portion 1 can also be provided with two stacked first supporting portions 12 and second supporting portions 13, the first supporting portion 12 is on the top, and the second supporting portion 13 is on the bottom. The first supporting portion 12 is the same height as the first supporting portion 12 and the width is smaller than the second supporting portion 13. The first notch 11 is formed on the surfaces of the first supporting portion 12 and the second supporting portion 13. The first connecting portion 22 partially extends to both sides of the first supporting portion 12 to surround the first notch 11, and is partially placed on the second supporting portion 13. The second supporting portion 13 extends between the first connecting portion 22 and the second connecting portion 23, just fitting with the first connecting portion 22 and the second connecting portion 23, that is, it can be moved toward the third connecting portion 24.

[0057] Based on the above, the first limiting portion 1 and the second limiting portion 2 form a fork-shaped matching structure, thereby improving the stability of the entire nail connecting mechanism structure during application.

[0058] In a preferred embodiment, based on the above, it can be known that the first limiting part 1 and the second limiting part 2 cooperate with each other to form a limiting area 3. Therefore, for the convenience of operation, the limiting area 3 can be set to adapt to adjustment and / or opening and closing. Therefore, the nail connection mechanism also includes a first driving mechanism 4, which is used to control the relative or opposite movement of the first limiting part 1 and the second limiting part 2 to open and close the limiting area 3. It can be understood that the driving structure drives the first limiting part 1 and the second limiting part 2 to move separately / synchronously, thereby controlling the size of the formed limiting area 3. As an example, in this embodiment, the first driving mechanism 4 includes: a first clamping cylinder connected to and acting on the side of the first limiting part 1 away from the first notch 11; a second clamping cylinder connected to and acting on the side of the second limiting part 2 away from the second notch 21. It can be understood that other structures can also be used to replace the clamping cylinder to achieve control of the first limiting part 1 and the second limiting part 2. It should be understood that, Figure 3 Only one connection position is indicated, and the connected clamping cylinder is not specifically reflected. It can also act on other positions on the first limiting part 1 or the second limiting part 2 to achieve the above-mentioned control of the limiting area 3 adjustment and / or opening and closing.

[0059] Embodiment 2: This embodiment also provides a nail moving device, which uses the nail connecting mechanism described in any one of the above embodiments; Figure 1-Figure 4 , also includes:

[0060] Nail feeding mechanism ( Figure 4 (not shown) for providing a plurality of screws for additional arrangement / connection;

[0061] A nail guide mechanism, one end of which extends to the nail feeding mechanism and the other end extends to the nail connecting mechanism, so that the screw is placed in the limiting area 3 of the nail connecting mechanism through the top nail guide mechanism;

[0062] The nail moving mechanism 6 is used to suck nails from the nail connecting mechanism. Figure 4 The nail guide mechanism is not shown in the figure. The position of the nail moving mechanism 6 can be referred to. When the nail connecting mechanism needs to connect nails, it moves to the bottom of the nail guide mechanism. The end of the nail guide mechanism can also cover the upper limit area 3 of the nail connecting mechanism, so that the screw enters the limit area 3).

[0063] It is understandable that the nail moving device can be used to move screws in an automatic screw driving device. Specifically, as an example, the screw is sucked out of the nail supply mechanism by the nail guide mechanism and placed on the nail receiving mechanism. The screw is confined to the limiting area 3 thereon. Specifically, the nail guide mechanism may include a nail guide tube and an air blowing device, that is, the screw is blown along the nail guide tube into the limiting area 3. At this time, the screw stands upright in the limiting area 3, and the screw end 01 is exposed in the limiting area 3; then the screw end 01 is acted on by the nail moving mechanism 6. Specifically, the nail moving mechanism 6 may include a vacuum tube that provides negative pressure, that is, the screw is adsorbed by the negative pressure and then moved to the target area (for assembly), thereby realizing the automatic displacement of the screw.

[0064] In this embodiment, as described above, the screws are first placed on the nail connecting mechanism through the nail guide mechanism, and then the screws are removed from the nail connecting mechanism through the nail moving mechanism 6. Therefore, the nail connecting mechanism can be set to be fixed at a certain position, while the nail guide mechanism and the nail moving mechanism 6 move. Alternatively, the nail guide mechanism and the nail moving mechanism 6 can be set to be fixed at a certain position, so that the nail connecting mechanism moves.

[0065] In a preferred embodiment, to facilitate operation, the movement paths of the above-mentioned mechanisms are reduced so that the nail connecting mechanism moves along the corresponding positions of the nail guide mechanism and the nail moving mechanism 6. Specifically, the nail moving device is provided to further include a second driving mechanism (shown in the figure, including but not limited to a cylinder, a motor connected to a driving rod, etc.), which is connected to the nail connecting mechanism to drive the nail connecting mechanism to move. Optionally, in order to further optimize the position arrangement of each mechanism and reduce the occupied space, the nail guide mechanism and the nail moving mechanism 6 are arranged in parallel in the vertical direction; the nail connecting mechanism is located below the two and moves back and forth along the corresponding positions of the nail guide mechanism and the nail moving mechanism 6. In this way, the nail guide mechanism places the screw on the nail connecting mechanism and can also reduce the risk of the screw tilting with the help of gravity. The nail moving mechanism 6 can act on the screw end 01 through negative pressure adsorption.

[0066] It can be understood that the vertical arrangement of the above-mentioned nail guide mechanism and the nail moving mechanism 6 can be used as an example. In actual application, they can also be arranged in the horizontal direction, so that the nail connecting mechanism moves in the vertical direction, and the limiting area corresponds to the nail guide mechanism and the nail moving mechanism 6.

[0067] Based on the above-mentioned nail moving device, the nail connecting mechanism is located below the nail guide mechanism, and the screws are placed on the nail connecting mechanism through the nail guide mechanism. The first driving mechanism 4 can be controlled to make the first limiting part 1 and the second limiting part 2 close and clamp the screws, and then the second driving mechanism can be controlled to move the nail connecting mechanism to the bottom of the nail moving mechanism 6. The screws are removed from the nail connecting mechanism through negative pressure adsorption by the nail moving mechanism 6, thereby realizing an autonomous nail moving process. In this process, the screws are restricted in the limiting area 3, and the risk of tilting or failure to adsorb is low.

[0068] Embodiment 3: This embodiment also provides a nail moving system, comprising one or more nail moving devices described in any one of the above-mentioned embodiments. Specifically, the nail moving devices are arranged in parallel and synchronously controlled to move nails. Distributed control is optional, but synchronous control is preferred to improve work efficiency. Some of the above-mentioned mechanisms (such as the nail supply mechanism and drive mechanism) can also be shared. This moving system cooperates with the screw assembly component to achieve autonomous assembly of batches of screws, which can be used in the automated production of power bricks and / or other electronic components, improving work efficiency and reducing the risk of errors.

[0069] It is understandable that other modules / devices may also be connected or integrated to suit different application scenarios.

[0070] It should be noted that the embodiments of the present invention have better feasibility and do not limit the present invention in any form. Any technician familiar with the field may use the technical content disclosed above to change or modify it into an equivalent effective embodiment. However, any modifications or equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A nail connecting mechanism, characterized in that: include: A first limiting portion, an end portion of which forms a first arc-shaped notch; A second limiting portion, an end portion of which forms a second arc-shaped notch; The first limiting portion and the second limiting portion are arranged relative to each other, so that the end of the first limiting portion where the first notch is located is placed in the second notch, and the first notch and the second notch surround each other to form a limiting area, wherein the inner diameter of the limiting area is smaller than the end of the screw, so that the screw rod enters the limiting area and the screw end is outside the limiting area.

2. The nail connecting mechanism according to claim 1, characterized in that: The second limiting portion includes a first connecting portion, a second connecting portion and a third connecting portion; The first connecting portion and the second connecting portion are parallel to each other and connected at their ends by the third connecting portion; The second notch is located at an end of the first connecting portion away from the third connecting portion; The first connecting portion extends to surround the end portion of the first limiting portion where the first notch is located; The second connecting portion extends to the bottom of the first limiting portion; The first limiting portion and the first connecting portion form a circumferential side wall of the limiting area, and the second connecting portion forms a bottom wall of the limiting area.

3. The nail connecting mechanism according to claim 2, wherein: The distance between the second connecting portion and the first connecting portion is set so that when the screw shank is located in the limiting area, one end contacts the bottom wall of the limiting area and the other end partially extends out of the limiting area.

4. The nail connecting mechanism according to claim 1, wherein: The first driving mechanism is further included, which is used to control the first limiting portion and the second limiting portion to move relative to or opposite to each other, so that the limiting area is opened and closed.

5. The nail connecting mechanism according to claim 4, characterized in that: The first driving mechanism comprises: a first clamping jaw cylinder connected to and acting on a side of the first limiting portion away from the first notch; A second clamping claw cylinder is connected to and acts on a side of the second limiting portion away from the second notch.

6. A nail removal device, characterized in that: The nail connecting mechanism according to any one of claims 1 to 5 above is used; Also includes: A nail guide mechanism, one end of which extends to the nail supply mechanism and the other end of which extends to the nail connection mechanism, so that the screw passes through the nail guide mechanism and is placed in the limiting area of ​​the nail connection mechanism; The nail moving mechanism is used to absorb nails from the nail connecting mechanism.

7. The nail moving device according to claim 6, characterized in that: It also includes a second driving mechanism connected to the nail connecting mechanism and used to drive the nail connecting mechanism to move.

8. The nail moving device according to claim 7, characterized in that: The nail guiding mechanism and the nail moving mechanism are arranged side by side in the vertical direction; The nail connecting mechanism reciprocates along corresponding positions of the nail guiding mechanism and the nail moving mechanism.

9. The nail moving device according to claim 6, characterized in that: The nail moving mechanism includes a vacuum tube that provides negative pressure.

10. A nail removal system, characterized in that: comprising a plurality of nail moving devices according to any one of claims 6 to 9; The nail moving devices are arranged in parallel and are synchronously controlled to move the nails.

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