Rivet feeding mechanism of hand riveter

Abstract

The utility model discloses a rivet feeding mechanism of a hand riveter. The rivet feeding mechanism comprises a fixing frame, a feeding pipe, a rivet discharging pipe, a lifting air cylinder, a rotating air cylinder, a fixing block and a rubber part. Wherein an upper fixing piece is arranged at the upper end of the fixing frame, and a lower fixing piece is arranged at the lower end; the feeding pipe is connected with the fixing frame through an upper fixing piece; the nail outlet pipe is made of stainless steel, the upper end of the nail outlet pipe is communicated with the feeding pipe, and the nail outlet pipe is connected with the fixing frame through a lower fixing piece. The lifting cylinder is connected with the fixing frame; the rotating cylinder is connected with the output end of the lifting cylinder; the lifting cylinder can drive the rotating cylinder to move up and down; one end of the fixed block is connected with the output end of the rotary cylinder; the rubber part is arranged in the first through hole and is in interference fit with the first through hole, a second through hole is formed in the rubber part, and the second through hole is in a funnel shape. According to the automatic nail feeding device, automatic nail feeding is achieved, the nail feeding speed is greatly increased, the production cost is reduced, and meanwhile workers are prevented from being injured.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting equipment, in particular to a nail feeding mechanism of a rivet gun. Background Art

[0002] Pull riveting is a fastening method that uses the principle of Hooke's law. After clamping the two parts with special rivet equipment, the metal of the inserted annular ring (or nut without threads) is squeezed and filled into the groove of the bolt with multiple annular grooves, so that the ring and the bolt are tightly combined.

[0003] Rivet guns are used for fastening and riveting various metal sheets and pipes in the manufacturing industry. They are widely used in riveting electromechanical and light industrial products such as elevators, switches, instruments, furniture, and decorations. Developed to address the shortcomings of weld nuts on thin metal sheets and thin pipes, such as the tendency for them to melt and for internal threads to slip, they can rivet products that do not require internal threads or weld nuts.

[0004] At present, the existing technology still has the following areas for improvement: In the existing technology, manual nailing is often used, which is time-consuming and labor-intensive. Manual nailing is also prone to causing injuries to workers during the production process. It is difficult to achieve automatic nailing, which affects the subsequent production progress. Summary of the Invention

[0005] According to an embodiment of the present invention, a rivet gun nail feeding mechanism is provided, comprising:

[0006] A fixing frame, wherein an upper fixing piece is provided at the upper end of the fixing frame and a lower fixing piece is provided at the lower end;

[0007] A feed pipe connected to the fixing frame via an upper fixing piece;

[0008] The nail outlet pipe is made of stainless steel, the upper end of which is connected to the feed pipe, and the nail outlet pipe is connected to the fixing frame through the lower fixing piece;

[0009] A lifting cylinder connected to a fixed frame;

[0010] The rotary cylinder is connected to the output end of the lifting cylinder, and the lifting cylinder can drive the rotary cylinder to move up and down;

[0011] A fixed block, one end of which is connected to the output end of the rotary cylinder and the other end of which is provided with a first through hole;

[0012] The rubber piece is arranged in the first through hole and has an interference fit with the first through hole. A second through hole is arranged in the rubber piece and is funnel-shaped.

[0013] Furthermore, a pair of guide rods are provided on the lifting cylinder. The pair of guide rods are slidably provided on the lifting cylinder, and one end of the guide rods is connected to the rotating cylinder.

[0014] Furthermore, the feed tube is used to continuously transport a plurality of rivets, and the inner diameter of the feed tube is larger than the maximum diameter of the rivets.

[0015] Furthermore, the lower end of the nail outlet tube is tapered.

[0016] Furthermore, an annular limiting step is provided on the upper end of the rubber member.

[0017] Furthermore, it also includes: a clamping cylinder, which is arranged at the bottom of the fixed block and fixedly connected to the fixed block. A third through hole with a diameter equal to the diameter of the lower end of the rivet is opened in the middle position of the clamping claw of the clamping cylinder, and the third through hole can be aligned with the second through hole.

[0018] Furthermore, the upper fixing member and the lower fixing member are connected to the fixing frame via screws respectively.

[0019] According to the nail feeding mechanism of the rivet gun of the embodiment of the present invention, automatic nail feeding is realized, which greatly improves the nail feeding speed, reduces the production cost, and also avoids worker injuries.

[0020] It is to be understood that both the foregoing general description and the following detailed description are exemplary, and are intended to provide further explanation of the technology as claimed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a first perspective embodiment of the present invention;

[0022] Figure 2 is a structural schematic diagram of a second viewing angle according to an embodiment of the present utility model;

[0023] Figure 3 It is a bottom view schematic diagram according to an embodiment of the utility model;

[0024] Figure 4 for Figure 3 AA sectional view;

[0025] Figure 5 for Figure 4 Enlarged view of point A. DETAILED DESCRIPTION

[0026] The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings to further illustrate the present invention.

[0027] First, combine Figures 1 to 5 The present invention provides a rivet gun nail feeding mechanism according to an embodiment of the present invention, which is used in riveting equipment and has a wide range of application scenarios.

[0028] like Figures 1 to 5As shown, the rivet gun nail feeding mechanism of the embodiment of the utility model includes:

[0029] A fixing frame 1, wherein an upper fixing member 11 is provided at the upper end of the fixing frame 1 and a lower fixing member 12 is provided at the lower end;

[0030] Feed pipe 2, which is connected to the fixing frame 1 through the upper fixing piece 11;

[0031] The nail-out tube 3 is made of stainless steel, which greatly improves the service life of the nail-out tube 3. The upper end of the nail-out tube 3 is connected to the feed pipe 2, and the nail-out tube 3 is connected to the fixing frame 1 through the lower fixing piece 12;

[0032] A lifting cylinder 4 is connected to the fixing frame 1;

[0033] Rotating cylinder 5, which is connected to the output end of lifting cylinder 4, and lifting cylinder 4 can drive rotating cylinder 5 to move up and down;

[0034] A fixed block 6, one end of which is connected to the output end of the rotary cylinder 5, and the other end of which is provided with a first through hole 61;

[0035] The rubber part 7 is arranged in the first through hole 61 and has an interference fit with the first through hole 61. A second through hole 62 is provided in the rubber part 7. The second through hole 62 is funnel-shaped and is used to prevent the rivet 9 from escaping from the second through hole 62. The rubber part 7 is used to prevent the stress caused by direct contact between the lower end of the nail tube 3 and the fixing block 6 from causing damage to the nail tube 3 or the fixing block 6. In addition, the use of the rubber part 7 also facilitates replacement.

[0036] Further, if Figure 1 、 4 As shown, in this embodiment, a pair of guide rods 41 are also provided on the lifting cylinder 4. The pair of guide rods 41 are slidably provided on the lifting cylinder 4, and one end is connected to the rotating cylinder 5. The pair of guide rods 41 play a guiding role when the rotating cylinder 5 is lifted or lowered.

[0037] Further, if Figure 1 、 5 As shown, in this embodiment, the feed pipe 2 is used to continuously convey multiple rivets 9 , and the inner diameter of the feed pipe 2 is larger than the maximum diameter of the rivet 9 , which facilitates the conveyance of the rivets 9 .

[0038] Further, if Figure 5 As shown, in this embodiment, the lower end of the nail-out tube 3 is tapered, which reduces the contact area between the nail-out tube 3 and the rubber member 7 .

[0039] Further, if Figure 5 As shown, in this embodiment, an annular limiting step 72 is provided on the upper end of the rubber member 7 to prevent the rubber member 7 from falling from the first through hole 61 .

[0040] Further, if Figures 1 to 5 As shown, in this embodiment, it also includes: a clamping cylinder 8, the clamping cylinder 8 is arranged at the bottom of the fixed block 6 and is fixedly connected to the fixed block 6. A third through hole 811 with a diameter equal to the lower end diameter of the rivet 9 is opened in the middle position of the clamping claw 81 of the clamping cylinder 8, and the third through hole 811 can be aligned with the second through hole 62; the use of the clamping cylinder 8 can prevent the rivet 9 in the second through hole 62 from falling from above during the rotation of the fixed block 6.

[0041] Further, if Figure 1 As shown, in this embodiment, the upper fixing member 11 and the lower fixing member 12 are respectively connected to the fixing frame 1 by screws, which is convenient for disassembly.

[0042] Working Principle: Rivet 9 passes through feed tube 2 and into rivet outlet tube 3, then into second through-hole 62. Its lower end protrudes out of second through-hole 62, and the clamping cylinder 8 clamps the lower end of rivet 9. Next, the lifting cylinder 4 drives the fixing block 6 down to the designated position, and the rotating cylinder 5 rotates the fixing block 6 90°, positioning the rivet 9 directly below the rivet gun. Next, the lifting cylinder 4 drives the fixing block 6 upward, causing the rubber member 7 to contact the muzzle of the rivet gun. The clamping cylinder 8 releases its clamping jaws, and the rivet gun removes the rivet 9 from the second through-hole 62. The fixing block 6 then returns to its original position, and the next round of rivet feeding begins.

[0043] Above, refer to Figures 1 to 5 The present invention describes a nail feeding mechanism for a rivet gun according to an embodiment of the present invention, which realizes automated nail feeding, greatly improves the nail feeding speed, reduces production costs, and also avoids worker injuries.

[0044] It should be noted that, in this specification, the terms "comprises," "includes," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, the elements defined by the phrase "comprising..." do not exclude the presence of other identical elements in the process, method, article, or apparatus comprising the elements.

[0045] Although the present invention has been described in detail through the above preferred embodiments, it should be understood that the above description should not be considered as limiting the present invention. After reading the above description, various modifications and alternatives to the present invention will be readily apparent to those skilled in the art. Therefore, the scope of protection of the present invention shall be defined by the appended claims.

Claims

1. A rivet gun nail feeding mechanism, characterized in that: Include: A fixing frame, wherein an upper fixing member is provided at the upper end of the fixing frame and a lower fixing member is provided at the lower end; a feed pipe connected to the fixing frame via the upper fixing member; A nail outlet pipe, made of stainless steel, with its upper end connected to the feed pipe and connected to the fixing frame via the lower fixing piece; A lifting cylinder connected to the fixing frame; A rotating cylinder connected to the output end of the lifting cylinder, the lifting cylinder can drive the rotating cylinder to move up and down; a fixed block, one end of which is connected to the output end of the rotary cylinder and the other end of which is provided with a first through hole; A rubber component is provided in the first through hole and is interference fit with the first through hole. A second through hole is provided in the rubber component, and the second through hole is funnel-shaped.

2. The rivet gun nail feeding mechanism according to claim 1, characterized in that: The lifting cylinder is also provided with a pair of guide rods, which are slidably arranged on the lifting cylinder and one end of which is connected to the rotating cylinder.

3. The rivet gun nail feeding mechanism according to claim 1, characterized in that: The feeding pipe is used for continuously conveying a plurality of rivets, and the inner diameter of the feeding pipe is larger than the maximum diameter of the rivets.

4. The rivet gun nail feeding mechanism according to claim 1, characterized in that: The lower end of the nail outlet tube is tapered.

5. The rivet gun nail feeding mechanism according to claim 1, characterized in that: An annular limiting step is provided on the upper end of the rubber piece.

6. The rivet gun nail feeding mechanism according to claim 1, characterized in that: It also includes: a clamping cylinder, which is arranged at the bottom of the fixed block and fixedly connected to the fixed block. A third through hole with a diameter equal to the diameter of the lower end of the rivet is opened in the middle position of the clamping claw of the clamping cylinder, and the third through hole can be aligned with the second through hole.

7. The rivet gun nail feeding mechanism according to claim 1, characterized in that: The upper fixing piece and the lower fixing piece are connected to the fixing frame via screws respectively.

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