Automatic nail feeding and guiding mechanism

Abstract

The present application discloses an automatic nail feeding and guiding mechanism, including a vertically arranged working block, a press rod vertically slidably arranged in the working block, and a rivet feeding nozzle fixed to the working block, a working cavity is recessed in the working block, the press rod is slidably arranged in the working cavity, the rivet feeding nozzle is connected to the working cavity, a guiding mechanism is arranged at the bottom end of the working cavity, the guiding mechanism is arranged at the bottom end of the working block through a press seat, the guiding mechanism is an annular structure, including at least two sliders, the slider can slide horizontally along the bottom surface of the working block. The present application has a simple structure, and uses a slider that can slide open horizontally to guide the rivet in advance, so that the rivet is in a vertical state, and ensures that it is always in a vertical state during the press-fitting process. At the same time, the rivet can enter the riveting hole of the workpiece in advance to improve the press-fitting accuracy.

Description

Technical Field

[0001] The present application relates to the field of automated machinery, and in particular to an automatic nail feeding and guiding mechanism. Background Art

[0002] Riveting equipment, that is, riveting machine (also known as riveting machine, rotary riveting machine, riveting machine, rolling riveting machine, etc.) is a new type of riveting equipment developed based on the principle of cold rolling. It can be used to punch rivets onto sheet metal parts to achieve mechanical connection between the two. Since the riveting equipment is easy to operate and the connection strength between the rivets and sheet metal parts after riveting is high, riveting equipment is often found in most processing workshops. When the riveting equipment is in use, the rivets need to be installed in the pre-punched holes on the sheet metal parts before the two can be riveted. However, in actual operation, since the rivets are usually small, when the rivets are installed in the holes on the sheet metal parts, problems such as rivet placement deviation often occur, which is inconvenient for workers to operate and directly affects production efficiency. The existing rivet guide mechanism adopts a flip-opening method, which cannot make the rivet contact the surface of the workpiece. It can only be positioned by the upper pressure head with the outer diameter of the rivet. The rivet itself has a tolerance, so the positioning and guiding effect is not good, and it is easy to produce edge cutting during the press-fitting process. Therefore, improvements are needed. Summary of the invention

[0003] The purpose of the present invention is to provide an automatic nail feeding and guiding mechanism to overcome the deficiencies in the prior art.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] An embodiment of the present application discloses an automatic nail feeding and guiding mechanism, comprising a vertically arranged working block, a press rod vertically slidably arranged in the working block, and a rivet feeding nozzle fixed to the working block. A working cavity is recessed in the working block, the press rod is slidably arranged in the working cavity, the rivet feeding nozzle is connected to the working cavity, and a guiding mechanism is arranged at the bottom end of the working cavity. The guiding mechanism is arranged at the bottom end of the working block through a pressure seat. The guiding mechanism is an annular structure, including at least two sliding blocks, and the sliding blocks can slide horizontally along the bottom surface of the working block.

[0006] Preferably, in the above-mentioned automatic nail feeding and guiding mechanism, the working cavity runs through the working block, and the working cavity includes a sliding cavity and a die cavity which are concentrically connected, and the press rod can be slidably encapsulated in the working cavity through a pressure cover, and the pressure cover is fixed to the top of the working block.

[0007] Preferably, in the above-mentioned automatic nail feeding and guiding mechanism, the pressing rod includes a connecting part, a sliding part and a pressing head which are concentrically connected in sequence, the connecting part is connected to an external power device, the sliding part is slidably arranged in the sliding cavity, and the pressing head can be slidably arranged in the die cavity.

[0008] Preferably, in the above-mentioned automatic nail feeding and guiding mechanism, the side wall of the working block is provided with an air passage connected to the bottom end of the sliding cavity, the side wall of the sliding part is provided with a first sealing ring corresponding to the inner wall of the sliding cavity, and the end of the die cavity close to the sliding cavity is provided with a second sealing ring corresponding to the pressure head.

[0009] Preferably, in the above-mentioned automatic nail feeding and guiding mechanism, the rivet feeding nozzle is fixed to the working block through a mounting seat, and a feeding channel connected to the rivet feeding nozzle is provided in the working block, and the feeding channel is connected to the die cavity at an angle.

[0010] Preferably, in the above-mentioned automatic nail feeding and guiding mechanism, the feeding channel and the rivet feeding nozzle are arranged concentrically.

[0011] Preferably, in the above-mentioned automatic nail feeding and guiding mechanism, the guiding mechanism is coaxially arranged with the press-fitting rod, and the bottom end of the center hole of the guiding mechanism is a tapered hole structure.

[0012] Preferably, in the above-mentioned automatic nail feeding and guiding mechanism, the number of the slider is three, the bottom surface of the working block is concavely provided with an annular slide groove, and the top surface of the slider protrudes with a slip ring arranged corresponding to the slide groove.

[0013] Preferably, in the above-mentioned automatic nail feeding and guiding mechanism, an elastic ring is sleeved on the outer wall of the sliding block.

[0014] Compared with the prior art, the advantages of the present invention are: the automatic nail feeding and guiding mechanism has a simple structure, and uses a slider that can slide open horizontally to guide the rivet in advance, so that the rivet is in a vertical state, and it is ensured that it is always in a vertical state during the press-fitting process. At the same time, the rivet can enter the riveting hole of the workpiece in advance, thereby improving the press-fitting accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1 Shown is a schematic structural diagram of an automatic nail feeding and guiding mechanism in a specific embodiment of the present invention.

[0017] Figure 2 Shown is a cross-sectional view of the automatic nail feeding and guiding mechanism in a specific embodiment of the present invention.

[0018] Figure 3 Shown is a schematic structural diagram of a pressure seat in a specific embodiment of the present invention.

[0019] Figure 4 Shown is a schematic structural diagram of a slider in a specific embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following will describe the technical solutions in the embodiments of the present invention in detail in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] Ginseng Figures 1 to 4 As shown, an automatic nail feeding and guiding mechanism includes a vertically arranged working block 1, a press rod 2 vertically slidably arranged in the working block 1 and a rivet feeding nozzle 3 fixed to the working block 1, a working cavity is recessed in the working block 1, the press rod 2 is slidably arranged in the working cavity, the rivet feeding nozzle 3 is connected to the working cavity, and a guiding mechanism is arranged at the bottom end of the working cavity, the guiding mechanism is arranged at the bottom end of the working block 1 through a pressure seat 5, and the guiding mechanism is an annular structure, including a three-petal 120° fan-shaped slider 4, and the slider 4 can slide horizontally along the bottom surface of the working block 1.

[0024] In this technical solution, a cross boss 11 protrudes from the bottom end of the working block, and a cross groove 51 corresponding to the cross boss is recessed at the top end of the pressure seat 5 to facilitate quick positioning during installation. The pressure seat 5 is fixed to the working block by bolts, and a mounting cavity 52 is recessed in the center of the top end of the pressure seat 5. A slider is slidably arranged in the mounting cavity. A positioning boss protrudes from the bottom end of the pressure seat to press the workpiece before riveting to prevent the workpiece from moving during riveting. A riveting through hole is provided in the center of the bottom end of the pressure seat to accommodate the passage of rivets. The automatic nail feeding and guiding mechanism has a simple structure, and uses a slider that can be slid open horizontally to guide the rivet in advance, so that the rivet is in a vertical state, and it is ensured that it is always in a vertical state during the press-fitting process. At the same time, the rivet can enter the riveting hole of the workpiece in advance to improve the press-fitting accuracy.

[0025] Furthermore, the working cavity runs through the working block 1 , and the working cavity includes a sliding cavity 12 and a die cavity 13 which are connected concentrically. The press rod 2 can be slidably encapsulated in the working cavity through a press cover 6 , and the press cover 6 is fixed to the top of the working block 1 .

[0026] In this technical solution, a positioning groove is recessed at the top of the working block to facilitate the rapid positioning and installation of the pressure cover, and the pressure cover is fixed to the working block by bolts to prevent the press rod from being disengaged from the working block.

[0027] Furthermore, the press rod 2 includes a connecting portion 21, a sliding portion 22 and a pressing head 23 which are concentrically connected in sequence, the connecting portion 21 is connected to an external riveting cylinder, the sliding portion 22 is slidably disposed in the sliding cavity 12, and the pressing head 23 can be slidably disposed in the die cavity 13.

[0028] Furthermore, the side wall of the working block 1 is provided with an air duct 14 connected to the bottom end of the sliding cavity 12, and an air nozzle (not shown) is installed. The side wall of the sliding part 22 is provided with a first sealing ring 221 corresponding to the inner wall of the sliding cavity 12, and the end of the die cavity 13 close to the sliding cavity 12 is provided with a second sealing ring 131 corresponding to the pressure head 23.

[0029] Furthermore, the rivet feeding nozzle 3 is fixed to the working block 1 through the mounting seat 7 , and a feeding channel 15 connected to the rivet feeding nozzle 3 is provided in the working block 1 , and the feeding channel 15 is connected to the die cavity 13 at an angle.

[0030] In the above three technical solutions, after the riveting cylinder moves the automatic rivet feeding and guiding mechanism into place, the rivet is fed in through the rivet feeding nozzle 3, slides into the die cavity 13 along the feeding channel 15, and then falls into the center of the guiding mechanism. Under the action of the guiding structure, the rivet is in a vertical state, the pressing rod is pressed down, the pressure head squeezes out the rivet, and continues to press down, the three-petal slider gradually opens, and always ensures that the rivet is vertical and concentric with the pressure head and the riveting hole of the workpiece. After the riveting is completed, the air pressure is inflated into the sliding cavity through the air nozzle, so that the pressing rod is reset, and the slider is automatically closed. The slider that can slide open horizontally is used to guide the rivet in advance, so that the rivet is in a vertical state, and it is ensured that it is always in a vertical state during the pressing process. At the same time, the rivet can enter the riveting hole of the workpiece in advance to improve the pressing accuracy.

[0031] Furthermore, the feeding channel 15 is arranged concentrically with the rivet feeding nozzle 3 .

[0032] In this technical solution, the rivet feeding nozzle belongs to the prior art and will not be described in detail here. The feeding channel 15 is concentrically arranged with the rivet feeding nozzle 3 to ensure that the rivet slides smoothly into the die cavity.

[0033] Furthermore, the guiding mechanism is coaxially arranged with the press rod 2, and the bottom end of the center hole of the guiding mechanism is a tapered hole structure.

[0034] Furthermore, the slider 4 has three lobes, the bottom surface of the working block 1 is concavely provided with an annular slide groove 16, and the top surface of the slider 4 is convexly provided with a slip ring 41 corresponding to the slide groove.

[0035] In this technical solution, when the rivet is squeezed, a force is applied to the inclined surface of the tapered hole to force the sliders to open horizontally, and the pressure seat cooperates with the slide groove to limit the moving direction of the slider.

[0036] Furthermore, an elastic ring 8 is sleeved on the outer wall of the guiding mechanism.

[0037] In this technical solution, after the press-fitting is completed, the press-fitting rod is reset, and the slider is forced to reset by the force of the elastic ring.

[0038] In summary, the automatic nail feeding and guiding mechanism has a stable structure and uses a dual booster cylinder as a drive to increase the output riveting force, so that the riveting connection of all parts in the air conditioner back panel can be completed, thereby expanding the scope of application.

[0039] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0040] The above is only a specific implementation of the present application. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present application. These improvements and modifications should also be regarded as the scope of protection of the present application.

Claims

1. An automatic nail feeding and guiding mechanism, characterized in that: The invention comprises a vertically arranged working block, a press rod vertically slidably arranged in the working block and a rivet feeding nozzle fixed to the working block, a working cavity is concavely arranged in the working block, the press rod is slidably arranged in the working cavity, the rivet feeding nozzle is connected to the working cavity, a guiding mechanism is arranged at the bottom end of the working block through a pressure seat, the guiding mechanism is an annular structure, comprising at least two sliders, the slider can slide horizontally along the bottom surface of the working block, a cross boss is protruded from the bottom end of the working block, and a cross recess corresponding to the cross boss is concavely arranged at the top end of the pressure seat The top center of the pressure seat is provided with an installation cavity, the sliding block is slidably arranged in the installation cavity, the bottom end of the pressure seat is provided with a positioning boss, the center of the bottom end of the pressure seat is provided with a riveted through hole, the working cavity runs through the working block, the working cavity comprises a sliding cavity and a die cavity which are concentrically connected, the pressing rod is slidably encapsulated in the working cavity through a pressing cover, the pressing cover is fixed to the top end of the working block, the pressing rod comprises a connecting part, a sliding part and a pressing head which are concentrically connected in sequence, the connecting part is connected to an external power device, the sliding part is slidably arranged in the sliding cavity, and the pressing head is slidably arranged in the die cavity.

2. The automatic nail feeding and guiding mechanism according to claim 1 is characterized in that: The side wall of the working block is provided with an air passage connected to the bottom end of the sliding cavity, the side wall of the sliding part is provided with a first sealing ring corresponding to the inner wall of the sliding cavity, and the end of the die cavity close to the sliding cavity is provided with a second sealing ring corresponding to the pressure head.

3. The automatic nail feeding and guiding mechanism according to claim 1 is characterized in that: The rivet feeding nozzle is fixed to the working block through a mounting seat. A feeding channel connected to the rivet feeding nozzle is provided in the working block. The feeding channel is connected to the die cavity at an angle.

4. The automatic nail feeding and guiding mechanism according to claim 3 is characterized in that: The feeding channel is arranged concentrically with the rivet feeding nozzle.

5. The automatic nail feeding and guiding mechanism according to claim 1, characterized in that: The guiding mechanism is coaxially arranged with the press-fitting rod, and the bottom end of the center hole of the guiding mechanism is a tapered hole structure.

6. The automatic nail feeding and guiding mechanism according to claim 5, characterized in that: The number of the sliding block is three, the bottom surface of the working block is concavely provided with an annular sliding groove, and the top surface of the sliding block is convexly provided with a slip ring arranged corresponding to the sliding groove.

7. The automatic nail feeding and guiding mechanism according to claim 5, characterized in that: An elastic ring is sleeved on the outer wall of the guiding mechanism.

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