Riveting device

Abstract

The utility model discloses a riveting device which comprises a base, a limiting seat and an upper die plate, a fixing seat is arranged on the upper portion of the base, a positioning groove is formed in the fixing seat, the limiting seat can be inserted into or separated from the positioning groove, the upper die plate is located above the base, a mounting seat is arranged on the lower portion of the upper die plate, a punch is arranged in the mounting seat, and the upper die plate can move up and down. And the punch is close to or far away from the fixed seat. According to the utility model, the convex sheet is riveted through the punch, so that the upper end of the convex sheet is deformed and expanded, the magnetic conductive frame and the magnetic conductive plate are fixed, the fixation is reliable, the convex sheet protrusion can be reduced, and the surface smoothness of the magnetic conductive plate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures, and more specifically, to a riveting device. Background Art

[0002] When making a coil magnet, the plastic-sealed coil needs to be placed in a magnetic frame, covered with a magnetic plate, and then the magnetic plate and the magnetic frame are fixed to fix the coil in the magnetic frame. Currently, the magnetic plate is fixed by punching and bending the protrusions of the magnetic frame. In this way, the protrusions are longer to reserve sufficient bending length, and the surface of the magnetic frame is severely protruded after bending, which is not conducive to the assembly of the magnetic frame and other components. Therefore, it is urgent to design a riveting device to replace the stamping and bending device to fix the magnetic frame and the magnetic plate. Utility Model Content

[0003] The purpose of the present utility model is to overcome the deficiencies of the above-mentioned prior art and to provide a riveting device, which uses a punch to rivet the protrusion so that the upper end of the protrusion is deformed and expanded, thereby achieving the fixation of the magnetic frame and the magnetic plate. Not only is the fixation reliable, but the protrusion of the protrusion can also be reduced, thereby improving the surface flatness of the magnetic plate.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a riveting device, comprising a base, a limiting seat and an upper template, wherein a fixing seat is provided on the upper part of the base, a positioning groove is provided in the fixing seat, the limiting seat can be inserted into or out of the positioning groove, the upper template is located above the base, a mounting seat is provided at the lower part of the upper template, a punch is provided in the mounting seat, and the upper template can move up and down to make the punch approach or move away from the fixing seat.

[0006] Furthermore, a limiting groove is provided in the limiting seat, and the upper end of the limiting groove is an opening.

[0007] Furthermore, a first guide rod is provided on the upper portion of the base, and the upper template includes a guide sleeve, which is sleeved on the outer side of the first guide rod, and the upper template can move up and down along the first guide rod.

[0008] Furthermore, it also includes a pressure plate, which is located below the upper template. The pressure plate and the upper template are connected through a second guide rod. A compression spring is sleeved on the outer side of the second guide rod. The upper end of the compression spring abuts the lower part of the upper template and the lower end abuts the upper part of the pressure plate. The pressure plate can move up and down along the second guide rod.

[0009] Furthermore, a shaft sleeve is provided on the outer side of the second guide rod, and the shaft sleeve is fixedly connected to the pressure plate. The shaft sleeve includes a convex sleeve, the lower end of the convex sleeve passes through the lower part of the pressure plate, and a bolt is fixed to the lower part of the convex sleeve, and the bolt head can abut or detach from the lower part of the pressure plate.

[0010] Furthermore, an avoidance groove is provided in the middle of the guide sleeve, the punch is located on both sides of the avoidance groove, and the pressure plate can move up and down in the avoidance groove.

[0011] Furthermore, a convex tip is provided at the lower end of the punch.

[0012] The beneficial effects of the utility model are:

[0013] During riveting, the pre-installed coil magnet is placed in the limit groove, and the limit seat is moved to the limit position in the positioning groove. At this time, the punch is located directly above the protrusion, and the upper template descends. The pressure plate first abuts against the upper part of the magnetic plate, which not only fixes the pre-installed coil magnet, but also squeezes the magnetic plate so that the magnetic plate is installed in place. The upper template continues to descend, and the convex tip of the punch abuts and squeezes the upper part of the protrusion to deform and expand the upper part of the protrusion. The expanded part of the protrusion can be stuck on the upper part of the magnetic plate, thereby achieving the fixation of the magnetic frame and the magnetic plate, and completing the riveting operation. In this way, not only is the connection reliable, but the protrusion only needs to protrude a small part of the upper surface of the magnetic plate to achieve the fixation of the magnetic plate and the magnetic frame, reducing the protruding area of ​​the protrusion, greatly improving the flatness of the coil magnet on the surface of the magnetic plate, and facilitating the assembly of the coil magnet with other components. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A structural diagram of this embodiment;

[0015] Figure 2 is a sectional view of the side view of this embodiment;

[0016] Figure 3 for Figure 2 Enlarged view at point A;

[0017] Figure 4 It is a partial cross-sectional view of the main view of this embodiment.

[0018] Figure numerals: 1. base; 11. first guide rod; 12. fixing seat; 13. positioning groove; 2. limiting seat; 21. limiting groove; 3. upper template; 31. guide sleeve; 32. mounting seat; 33. avoidance groove; 4. punch; 41. convex tip; 5. pressure plate; 6. second guide rod; 7. compression spring; 8. bushing; 81. convex sleeve; 9. magnetic frame; 91. convex piece; 92. magnetic plate; 100. bolt. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0020] like Figures 1 to 4 As shown, a riveting device is used to process a coil magnet, including a base 1, a limiting seat 2 and an upper template 3. A fixing seat 12 is provided on the upper part of the base 1, and a positioning groove 13 is provided in the fixing seat 12. The limiting seat 2 can be inserted into or out of the positioning groove 13. A limiting groove 21 is provided in the limiting seat 2, and the upper end of the limiting groove 21 is an opening. The coil magnet can be placed in the limiting groove 21 to achieve placement and positioning. By setting the positioning groove 13, the limiting seat 2 can be positioned to facilitate riveting operations. An opening is provided on one side of the positioning groove 13, and the limiting seat 2 can be moved laterally to be inserted into the positioning groove 13 for easy operation.

[0021] The upper template 3 is located above the base 1, and a mounting seat 32 is provided at the lower part of the upper template 3. A punch 4 is provided in the mounting seat 32, and a convex tip 41 is provided at the lower end of the punch 4. The upper template 3 can move up and down, and the upper template 3 is pushed up and down by a cylinder (not shown in the figure) to make the punch 4 approach or move away from the fixing seat 12. It also includes a pressing plate 5, which is located below the upper template 3. The pressing plate 5 and the upper template 3 are connected by a second guide rod 6. A compression spring 7 is provided on the outer side of the second guide rod 6. The upper end of the compression spring 7 abuts the lower part of the upper template 3 and the lower end abuts the upper part of the pressing plate 5. The pressing plate 5 can move up and down along the second guide rod 6. An avoidance groove 33 is provided in the middle of the guide sleeve 31. The punch 4 is located on both sides of the avoidance groove 33. The pressing plate 5 can move up and down in the avoidance groove 33. When the upper template 3 descends, the pressing plate 5 first abuts the upper part of the coil magnet to fix the coil magnet, and the punch 4 then punches the coil magnet to achieve riveting fixation.

[0022] A shaft sleeve 8 is provided on the outer side of the second guide rod 6, and the shaft sleeve 8 is fixedly connected to the pressure plate 5. The shaft sleeve 8 includes a convex sleeve 81, and the lower end of the convex sleeve 81 passes through the lower part of the pressure plate 5. A bolt 100 is fixed to the lower part of the convex sleeve 81, and the head of the bolt 100 can abut against or disengage from the lower part of the pressure plate 5. By providing the shaft sleeve 8, the pressure plate 5 can move more smoothly and the structural reliability is high.

[0023] A first guide rod 11 is provided on the upper part of the base 1, and the upper template 3 includes a guide sleeve 31. The guide sleeve 31 is sleeved on the outside of the first guide rod 11. The upper template 3 can move up and down along the first guide rod 11. Through the cooperation between the first guide rod 11 and the guide sleeve 31, the movement accuracy of the upper template 3 can be improved, which is conducive to improving the riveting performance.

[0024] The coil magnet includes a magnetic frame 9 and a magnetic plate 92. The upper part of the magnetic frame 9 is provided with a protruding piece 91. The lower part of the magnetic plate 92 abuts against the upper part of the magnetic frame 9. The protruding piece 91 passes through the magnetic plate 92, and the upper end of the protruding piece 91 is higher than the upper surface of the magnetic plate 92. Before riveting, the coil magnet needs to be pre-installed. Specifically, the magnetic plate 92 is covered on the upper part of the magnetic frame 9, and the protruding piece 91 passes through the magnetic plate 92. When riveting, the pre-installed coil magnet is placed in the limiting groove 21, and the limiting seat 2 is moved to the positioning groove 13 for limiting. At this time, the punch 4 is located directly above the protruding piece 91, the upper template 3 descends, and the pressing plate 5 first abuts against the upper part of the magnetic plate 92, which not only fixes the pre-installed coil magnet, but also The magnetic conductive plate 92 is squeezed so that the magnetic conductive plate 92 is installed in place, and the upper template 3 continues to descend. The protruding tip 41 at the lower end of the punch 4 abuts and squeezes the upper part of the protrusion 91 to deform and expand the upper part of the protrusion 91. The expanded part of the protrusion 91 can be stuck on the upper part of the magnetic conductive plate 92, thereby achieving the fixation of the magnetic conductive frame 9 and the magnetic conductive plate 92, and completing the riveting operation. In this way, not only is the connection reliable, but the protrusion 91 only needs to protrude a small part of the upper surface of the magnetic conductive plate 92 to achieve the fixation of the magnetic conductive plate 92 and the magnetic conductive frame 9, reducing the protruding area of ​​the protrusion 91, greatly improving the flatness of the coil magnet on the surface of the magnetic conductive plate 92, and facilitating the assembly of the coil magnet and other components.

[0025] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A riveting device, characterized in that: The invention comprises a base (1), a limiting seat (2) and an upper template (3); a fixing seat (12) is provided on the upper part of the base (1); a positioning groove (13) is provided in the fixing seat (12); the limiting seat (2) can be inserted into or out of the positioning groove (13); the upper template (3) is located above the base (1); a mounting seat (32) is provided on the lower part of the upper template (3); a punch (4) is provided in the mounting seat (32); and the upper template (3) can move up and down so that the punch (4) is close to or away from the fixing seat (12).

2. A riveting device according to claim 1, characterized in that: A limiting groove (21) is provided in the limiting seat (2), and the upper end of the limiting groove (21) is open.

3. The riveting device according to claim 1, characterized in that: A first guide rod (11) is provided on the upper portion of the base (1); the upper template (3) includes a guide sleeve (31); the guide sleeve (31) is sleeved on the outside of the first guide rod (11); and the upper template (3) is capable of moving up and down along the first guide rod (11).

4. A riveting device according to claim 3, characterized in that: The present invention also includes a pressure plate (5), which is located below the upper template (3). The pressure plate (5) is connected to the upper template (3) through a second guide rod (6). A compression spring (7) is sleeved on the outer side of the second guide rod (6). The upper end of the compression spring (7) abuts against the lower part of the upper template (3) and the lower end abuts against the upper part of the pressure plate (5). The pressure plate (5) can move up and down along the second guide rod (6).

5. A riveting device according to claim 4, characterized in that: The outer side of the second guide rod (6) is provided with a shaft sleeve (8), and the shaft sleeve (8) is fixedly connected to the pressure plate (5). The shaft sleeve (8) includes a convex sleeve (81), and the lower end of the convex sleeve (81) passes through the lower part of the pressure plate (5). The lower part of the convex sleeve (81) is fixed with a bolt (100), and the head of the bolt (100) can abut against or detach from the lower part of the pressure plate (5).

6. A riveting device according to claim 4, characterized in that: The guide sleeve (31) is provided with an avoidance groove (33) in the middle, the punch (4) is located on both sides of the avoidance groove (33), and the pressing plate (5) can move up and down in the avoidance groove (33).

7. The riveting device according to claim 1, characterized in that: The lower end of the punch (4) is provided with a convex tip (41).

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