Rivet pressing mechanism

Abstract

The utility model relates to the technical field of squeeze riveters, and discloses a squeeze riveting mechanism which comprises a base, two lower supporting plates are symmetrically and fixedly installed on the upper surface of the base, two limiting columns are symmetrically and fixedly installed on the upper surfaces of the two lower supporting plates, and upper supporting plates are slidably installed on the outer surfaces of the two limiting columns. The outer surface of the limiting column is sleeved with a tension spring. According to the rivet pressing device, the T-shaped sliding rod drives the rivet pressing head to move up and down in a reciprocating mode, when the rivet pressing head moves downwards, rivets can be pressed into metal products below the rivet pressing head, long metal products can be continuously pressed into the rivets at equal intervals through the rivet pressing device, repeated clamping is avoided, and the efficiency of rivet pressing production is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of riveting machines, in particular to a riveting mechanism. Background Art

[0002] The pressure riveting machine (also known as the 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 refers to mechanical equipment that can rivet objects together with rivets. It solves the problem that some sheet metal parts cannot be directly placed on ordinary sloped cast steel machines for pressure riveting after being bent.

[0003] An existing riveting mechanism (publication number: CN220216616U) has at least the following disadvantages:

[0004] When the above patent is in use, the second hydraulic push rod is activated to move the pressing plate downward, so that the bottom surface of the pressing plate presses and fixes the top surface of the metal product, which is beneficial to improve the stability of the metal product during the riveting process. The positions of the two pressing plates in the above patent are fixed, while the existing metal products are longer in size and have continuous and equidistant rivets that need to be riveted, which requires users to install them in multiple times and rivet different sections, affecting the efficiency of riveting production. Utility Model Content

[0005] The purpose of the utility model is to solve the problem that in the prior art, the positions of the two pressure plates are fixed, while the existing metal products are long in size and have continuous equidistant rivets that need to be press-riveted, resulting in the user having to install them in multiple times and press-riveting different sections, which affects the efficiency of press-riveting production. A press-riveting mechanism is proposed.

[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0007] The two wheels are fixed together by a spring, and the two ends of the two wheels are fixed together by a spring, and the two wheels are connected with each other to form a circle, and a circle around the two wheels are connected with each other to form a circle.

[0008] As a further solution of the present utility model, a shell is fixedly installed on the outer surface of the lower support plate on one side away from the fixed block, a driving motor is fixedly installed on the outer surface of the shell, a driven sheave is rotatably installed on the lower support plate close to the outer surface of the shell, and an active dial is also rotatably installed on the lower support plate close to the outer surface of the shell, the active dial is meshed with the driven sheave, and the output end of the driving motor passes through the outer surface of the shell and is fixedly installed on the rotation center of the active dial.

[0009] As a further solution of the present invention, one end of the two lower rollers away from the drive motor passes through the outer surface of the lower support plate and is fixedly installed with a first pulley, and the outer surface of the first pulley is provided with a first belt.

[0010] As a further solution of the present invention, a second pulley is rotatably installed on the outer surface of the lower support plate close to the drive motor, a third pulley is fixedly installed on the output end of the drive motor, and a second belt is wrapped around the outer surfaces of the second pulley and the third pulley.

[0011] As a further solution of the present invention, a driving arm is fixedly installed on the outer surface of the rotation center of the second pulley, and a connecting rod is rotatably installed on one end of the driving arm away from the rotation center, and the top end of the connecting rod is rotatably installed with the bottom end of the T-shaped slide bar.

[0012] As a further solution of the present invention, a support plate is fixedly installed between the two lower support plates, the upper surface of the support plate and the highest point of the two lower rollers are located in the same plane, the support plate is arranged directly below the rivet head, and a rivet hole is opened through the upper surface of the support plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] The driving motor drives the active dial to drive the driven groove wheel to rotate intermittently, and the driven groove wheel drives the two lower rollers to rotate intermittently, driving the metal product on its upper surface to move intermittently to the bottom of the rivet head. The driving motor, the third pulley and the second belt drive the second pulley to rotate, so that the second pulley drives the driving arm to rotate. The driving arm drives the T-shaped slide bar to move back and forth along the T-shaped slide bar through the connecting rod, and drives the rivet head to move back and forth up and down through the T-shaped slide bar. When the rivet head moves downward, rivets can be pressed into the metal product below it. Through this device, rivets can be pressed into longer metal products at equal intervals continuously, avoiding multiple clamping and improving the efficiency of rivet production. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the overall structure of a riveting mechanism proposed by the utility model;

[0016] Figure 2This is a rear structural schematic diagram of a riveting mechanism proposed in the utility model;

[0017] Figure 3 This is a schematic diagram of an active dial of a riveting mechanism proposed in the present utility model;

[0018] Figure 4 The figure is a schematic diagram of the internal structure of a pressure riveting mechanism proposed in the utility model.

[0019] In the figure: 1. Base; 2. Lower support plate; 3. Upper support plate; 4. Limiting column; 5. Tension spring; 6. Lower roller; 7. Upper roller; 8. First pulley; 9. First belt; 10. Fixed block; 11. T-shaped slide bar; 12. Rivet head; 13. Second pulley; 14. Driving arm; 15. Connecting rod; 16. Housing; 17. Driving motor; 18. Second belt; 19. Third pulley; 20. Active dial; 21. Driven sheave; 22. Support plate. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc. should be understood in a broad sense. For example, "connected" can mean 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 an indirect connection through an intermediate medium, or it can be internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0023] Reference Figure 1-Figure 4A riveting mechanism includes a base 1, two lower support plates 2 are symmetrically fixedly installed on the upper surface of the base 1, two limit columns 4 are symmetrically fixedly installed on the upper surfaces of the two lower support plates 2, an upper support plate 3 is slidably installed on the outer surface of the two limit columns 4, and a tension spring 5 is sleeved on the outer surface of the limit column 4. Through the action of the four tension springs 5, the upper support plate 3 drives the upper roller 7 to press down, and through the downward pressure of the upper roller 7, the metal product to be riveted is firmly pressed between the lower roller 6 and the upper roller 7 to prevent the metal product from being riveted. The two ends of the tension spring 5 are respectively fixed to the outer surfaces of the lower support plate 2 and the upper support plate 3. Two lower rollers 6 are rotatably installed between the two lower support plates 2, and two upper rollers 7 are rotatably installed between the two upper support plates 3. A fixed block 10 is fixedly installed on the outer surface of one side of the lower support plates 2. A T-shaped slide groove is opened inside the fixed block 10. A T-shaped slide rod 11 is slidably installed on the inner wall of the T-shaped slide groove. A rivet head 12 is fixedly installed on the outer surface of the T-shaped slide rod 11 close to the lower roller 6.

[0024] The T-shaped slide bar 11 drives the rivet head 12 to move up and down. When the rivet head 12 moves down, rivets can be pressed into the metal product below it. This device can continuously press rivets into longer metal products at equal intervals, avoiding multiple clamping and improving the efficiency of rivet production.

[0025] In this embodiment, a shell 16 is fixedly installed on the outer surface of the side of the lower support plate 2 away from the fixed block 10, and a drive motor 17 is fixedly installed on the outer surface of the shell 16. A driven sheave 21 is rotatably installed on the outer surface of the lower support plate 2 close to the shell 16, and an active dial 20 is also rotatably installed on the outer surface of the lower support plate 2 close to the shell 16. The active dial 20 is engaged with the driven sheave 21. The output end of the drive motor 17 passes through the outer surface of the shell 16 and is fixedly installed with the rotation center of the active dial 20. The ends of the two lower rollers 6 away from the drive motor 17 pass through the outer surface of the lower support plate 2 and are fixedly installed with a first pulley 8. The outer surface of the first pulley 8 is provided with a first belt 9.

[0026] The driving motor 17 drives the active dial 20 to rotate, so that the active dial 20 drives the driven sheave 21 to rotate intermittently, and the driven sheave 21 drives one of the lower rollers 6 to rotate intermittently. The lower roller 6 drives the other lower roller 6 to rotate in the same direction through the first pulley 8 and the first belt 9. Through the intermittent rotation of the two lower rollers 6, the metal product on its upper surface is driven to intermittently move to the bottom of the rivet head 12, so that the rivet head 12 can press the rivet.

[0027] In this embodiment, a second pulley 13 is rotatably mounted on the outer surface of the lower support plate 2 close to the driving motor 17, a third pulley 19 is fixedly mounted on the output end of the driving motor 17, a second belt 18 is wrapped around the outer surfaces of the second pulley 13 and the third pulley 19, a driving arm 14 is fixedly mounted on the outer surface of the rotation center of the second pulley 13, a connecting rod 15 is rotatably mounted on the end of the driving arm 14 away from the rotation center, and the top end of the connecting rod 15 is rotatably mounted to the bottom end of the T-shaped slide bar 11.

[0028] The third pulley 19 is driven to rotate by the driving motor 17, and the third pulley 19 drives the second pulley 13 to rotate through the second belt 18, so that the second pulley 13 drives the driving arm 14 to rotate, and the driving arm 14 drives the T-shaped slide bar 11 to move back and forth along the T-shaped slide groove through the connecting rod 15.

[0029] In this embodiment, a support plate 22 is fixedly installed between the two lower support plates 2. The upper surface of the support plate 22 is located in the same plane as the highest point of the two lower rollers 6, ensuring that the metal product is against the upper surface of the support plate 22, which is convenient for pressing rivets. The support plate 22 is arranged directly below the rivet head 12, and a rivet hole is opened through the upper surface of the support plate 22, and a displacement space is reserved for the rivet through the rivet hole.

[0030] It should be noted that when the present invention is in use, the user inserts one end of the metal product to be riveted between the lower roller 6 and the upper roller 7, and the upper support plate 3 drives the upper roller 7 to press down through the force of the four tension springs 5. The metal product to be riveted is firmly pressed between the lower roller 6 and the upper roller 7 through the downward pressure of the upper roller 7 to prevent it from loosening during processing; the driving motor 17 drives the active dial 20 to rotate, so that the active dial 20 drives the driven groove wheel 21 to rotate intermittently, and the driven groove wheel 21 drives one of the lower rollers 6 to rotate intermittently, and the lower roller 6 drives the other lower roller 6 to rotate in the same direction through the first pulley 8 and the first belt 9, and the intermittent rotation of the two lower rollers 6 drives the upper roller 6 to rotate in the same direction. The metal product on the surface is intermittently moved to the bottom of the rivet head 12, which makes it easier for the rivet head 12 to press the rivet into place. The third pulley 19 is driven to rotate by the driving motor 17, and the third pulley 19 drives the second pulley 13 to rotate through the second belt 18, so that the second pulley 13 drives the driving arm 14 to rotate. The driving arm 14 drives the T-shaped slide bar 11 to move back and forth along the T-shaped slide groove through the connecting rod 15, and drives the rivet head 12 to move back and forth up and down through the T-shaped slide bar 11. When the rivet head 12 moves downward, rivets can be pressed into the metal product below it. Through this device, rivets can be pressed into longer metal products at equal distances continuously, avoiding multiple clamping and improving the efficiency of rivet production.

[0031] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. A riveting mechanism, comprising a base (1), characterized in that: Two lower support plates (2) are symmetrically fixedly installed on the upper surface of the base (1), and two limit columns (4) are symmetrically fixedly installed on the upper surfaces of the two lower support plates (2). The upper support plates (3) are slidably installed on the outer surfaces of the two limit columns (4), and the outer surfaces of the limit columns (4) are sleeved with tension springs (5). The two ends of the tension springs (5) are respectively fixedly installed on the outer surfaces of the lower support plates (2) and the upper support plates (3). Two lower rollers (6) are rotatably installed between the two lower support plates (2), and two upper rollers (7) are rotatably installed between the two upper support plates (3). A fixed block (10) is fixedly installed on the outer surface of one side of one of the lower support plates (2), and a T-shaped groove is opened inside the fixed block (10). A T-shaped slide rod (11) is slidably installed on the inner wall of the T-shaped slide rod, and a rivet head (12) is fixedly installed on the outer surface of the T-shaped slide rod (11) close to the lower roller (6).

2. A riveting mechanism according to claim 1, characterized in that: A shell (16) is fixedly mounted on the outer surface of one side of the lower support plate (2) away from the fixed block (10), a driving motor (17) is fixedly mounted on the outer surface of the shell (16), a driven sheave (21) is rotatably mounted on the outer surface of the lower support plate (2) close to the shell (16), a driving dial (20) is also rotatably mounted on the outer surface of the lower support plate (2) close to the shell (16), the driving dial (20) is meshed with the driven sheave (21), and an output end of the driving motor (17) passes through the outer surface of the shell (16) and is fixedly mounted at the rotation center of the driving dial (20).

3. A riveting mechanism according to claim 2, characterized in that: The ends of the two lower rollers (6) away from the driving motor (17) penetrate the outer surface of the lower support plate (2) and are fixedly mounted with a first pulley (8), and the outer surface of the first pulley (8) is sleeved with a first belt (9).

4. A riveting mechanism according to claim 3, characterized in that: A second pulley (13) is rotatably mounted on the outer surface of the lower support plate (2) close to the driving motor (17), a third pulley (19) is fixedly mounted on the output end of the driving motor (17), and a second belt (18) is wound around the outer surfaces of the second pulley (13) and the third pulley (19).

5. A riveting mechanism according to claim 4, characterized in that: A driving arm (14) is fixedly mounted on the outer surface of the rotation center of the second pulley (13), and a connecting rod (15) is rotatably mounted on one end of the driving arm (14) away from the rotation center, and the top end of the connecting rod (15) is rotatably mounted on the bottom end of the T-shaped sliding rod (11).

6. A riveting mechanism according to claim 1, characterized in that: A support plate (22) is fixedly installed between the two lower support plates (2), the upper surface of the support plate (22) and the highest point of the two lower rollers (6) are located in the same plane, the support plate (22) is arranged directly below the rivet head (12), and the upper surface of the support plate (22) is penetrated by a rivet hole.

Images