A riveting device for the production of distribution boxes

Abstract

The present invention discloses a riveting device for the production of distribution boxes, which relates to the technical field of riveting devices and includes a riveting table. A hydraulic rod is fixedly installed on the top of the riveting table, and the telescopic end of the hydraulic rod is fixed with an upper die base. A lower die base located directly below the upper die base is fixedly connected to the riveting table. It also includes a mechanism. The positioning mechanism includes a riveting head slidably connected to the bottom end of the upper die base. A return spring is provided between the riveting head and the upper die base. A connecting rod is fixedly connected inside the upper die base, and an extrusion block is fixed to the bottom end of the connecting rod. In this application, the hole position of the assembled part and the inner wall of the riveting nut are supported by the pushing component and the inner support plate respectively. Through the balance of forces, the hole position of the assembled part is aligned with the riveting nut during riveting, thereby improving the riveting accuracy, facilitating the assembly of each assembled part after riveting, and at the same time improving the material flow uniformity of the assembled part during riveting, ensuring the connection strength between the assembled part and the riveting nut.

Description

Technical Field

[0001] The present invention relates to the technical field of riveting devices, and in particular to a riveting device for the production of distribution boxes. Background Art

[0002] A distribution box is an electrical device for distributing and controlling electric energy, generally made of metal material. In order to achieve rapid assembly, riveting is carried out on the distribution box.

[0003] Traditional riveting devices mainly consist of a hydraulic rod and upper and lower die seats. During operation, first place the riveting nut on the lower die seat, and then accurately sleeve the hole position on the assembly of the distribution box that needs to be riveted onto the riveting nut. After starting the device, the hydraulic rod drives the upper die seat to descend, causing the assembly and the riveting nut to squeeze each other. Under the action of the squeezing force, the riveting nut forces the material around the hole position of the assembly to undergo plastic deformation, and then embeds into the hole position to achieve the fixed connection between the riveting nut and the assembly.

[0004] To ensure that there is sufficient space for the material to flow and deform during riveting, so that the riveting nut can better bite tightly with the hole position of the assembly and then form a firm connection, the diameter of the hole position on the assembly needs to be designed slightly larger than the diameter of the riveting nut. However, this design has a drawback: when the hole position of the assembly is sleeved on the riveting nut, it is extremely difficult to accurately position the riveting nut at the center of the hole position. During the riveting process, the force on the nut and the hole wall is uneven, which leads to a decrease in the connection strength. More seriously, it may also cause the hole position around the assembly to be inclined or the nut to protrude on one side, affecting the overall appearance quality of the product. Summary of the Invention

[0005] The purpose of the present invention is to propose a riveting device for the production of distribution boxes to solve the problem that when the hole position of the assembly is sleeved on the riveting nut, it is extremely difficult to accurately position the riveting nut at the center of the hole position, resulting in uneven force between the nut and the hole wall during the riveting process.

[0006] To achieve the above purpose, the present invention adopts the following technical solution: A riveting device for the production of distribution boxes, including a riveting table, a hydraulic rod is fixedly installed on the top of the riveting table, the telescopic end of the hydraulic rod is fixed with an upper die seat, a lower die seat is fixedly connected to the riveting table and is located directly below the upper die seat, and further includes:

[0007] A positioning mechanism, the positioning mechanism includes a riveting head slidably connected to the bottom end of the upper die seat, a return spring is arranged between the riveting head and the upper die seat, a connecting rod is fixedly connected to the inside of the upper die seat, an extrusion block is fixed to the bottom end of the connecting rod, an inner support plate is elastically connected to the inside of the extrusion block, and a pushing component is arranged at the bottom of the riveting head;

[0008] The pushing component includes an installation cylinder, and a spring telescopic rod is slidably connected inside the installation cylinder. A first spring is arranged between the spring telescopic rod and the installation cylinder;

[0009] During the downward pressing process of the extrusion block, the spring telescopic rod and the inner support plate are respectively used to perform inner support positioning on the riveting hole position and the riveting nut.

[0010] As a further description of the above technical solution: It further includes a constraint unit. The constraint unit includes a support ring that is movably connected to the bottom end of the riveting head and slidably connected to the installation cylinder. The diameter of the support ring is equal to the diameter of the riveting hole position. A second spring is arranged between the support ring and the riveting head. The support ring is located inside the riveting hole position to support and constrain the material.

[0011] As a further description of the above technical solution: It further includes a flattening unit. The flattening unit includes a convex rod fixed to the top of the support ring. A spiral guide groove is formed on the outer part of the connecting rod. The convex rod is embedded in the guide groove. A chip discharge groove is formed on the inner wall of the top end of the lower die base.

[0012] As a further description of the above technical solution: The bottom of the installation cylinder is movably connected with a friction plate. The friction plate includes two groups of convex teeth fixed to the upper surface of the friction plate and the inside of the installation cylinder.

[0013] As a further description of the above technical solution: An auxiliary ejection component is arranged inside the lower die base. The auxiliary ejection component includes a sliding part slidably connected inside the lower die base. A third spring is arranged at the bottom of the sliding part. An ejection part that is hermetically connected to the inner wall of the lower die base is slidably connected inside the sliding part.

[0014] As a further description of the above technical solution: A discharge channel is arranged inside the lower die base. The top of the ejection part is conical.

[0015] As a further description of the above technical solution: An electromagnet is fixedly installed at the bottom of the extrusion block.

[0016] As a further description of the above technical solution: A ring part fixed to the bottom end of the second spring is rotatably connected to the top of the support ring.

[0017] In summary, due to adopting the above technology, a riveting device for the production of distribution boxes, the beneficial effects of the present invention are:

[0018] In this application, the hole position of the fitting and the inner wall of the rivet nut are supported by the pushing component and the inner support plate respectively. Through the balance of forces, the hole position of the fitting is aligned with the rivet nut during riveting, thereby improving the riveting accuracy, facilitating the assembly of each fitting after riveting, improving the uniformity of material flow during the riveting of the fitting, ensuring the connection strength between the fitting and the rivet nut, preventing uneven deformation and inclination around the hole position of the fitting caused by riveting, and improving the quality of the riveting process of the fitting.

[0019] This application can accurately position the rivet nut. Therefore, the diameter of the positioning groove on the lower die base for placing the rivet nut can be enlarged, facilitating the placement of the rivet nut, and avoiding the situation that it is difficult to unload the rivet nut due to too tight fitting between the rivet nut and the positioning groove after riveting, thereby improving the efficiency of the riveting process.

[0020] In this application, the inner wall of the hole position of the fitting is supported by the support ring during riveting, effectively preventing the hole position of the fitting from deforming when the riveting head presses the fitting, which is beneficial to the precise assembly of subsequent components, improving the assembly quality and consistency of the product, avoiding fatigue cracks caused by stress concentration around the hole position of the fitting during long-term use, reducing the service life of the fitting, and improving the riveting effect of thick and easily deformable fittings.

[0021] The leveling unit can drive the rivet nut to deflect before riveting, avoiding the inclination of the rivet nut caused by impurities inside the positioning groove of the lower die base or burrs at the bottom of the rivet nut itself, thereby ensuring the flat posture of the rivet nut during riveting and guaranteeing the riveting effect. Moreover, the vibration generated by the leveling unit after riveting can also reduce the tightness of the connection between the support ring and the fitting, facilitating the separation of the fitting from the support ring after riveting.

[0022] The auxiliary ejection component can not only discharge the metal chips generated during the riveting process, avoiding the influence of debris on the placement of the rivet nut, but also assist in removing the rivet nut after riveting, saving manpower and accelerating the riveting efficiency. Description of the Drawings

[0023] Figure 1 Shows the overall schematic diagram provided according to an embodiment of the present invention;

[0024] Figure 2 Shows the cross-sectional view of the upper die base provided according to an embodiment of the present invention;

[0025] Figure 3 Shows the one provided according to an embodiment of the present invention Figure 2 Enlarged view at A in;

[0026] Figure 4 Shows the schematic diagram of the pushing component provided according to an embodiment of the present invention;

[0027] Figure 5 Shows a schematic diagram of a friction plate provided according to an embodiment of the present invention;

[0028] Figure 6 Shows a sectional view of a lower die base provided according to an embodiment of the present invention;

[0029] Figure 7 Shows a schematic diagram of an auxiliary ejection assembly provided according to an embodiment of the present invention;

[0030] Figure 8 Shows that provided according to an embodiment of the present invention Figure 7 Enlarged view at B in;

[0031] Figure 9 Shows a first state diagram of a constraint unit provided according to an embodiment of the present invention;

[0032] Figure 10 Shows a second state diagram of a constraint unit provided according to an embodiment of the present invention.

[0033] Legend description:

[0034] 10. Riveting table; 11. Hydraulic rod; 12. Lower die base; 13. Upper die base;

[0035] 20. Positioning mechanism; 21. Riveting head; 22. Return spring; 23. Connecting rod; 24. Extrusion block; 25. Inner support plate; 26. Pushing assembly; 261. Installation cylinder; 262. Spring telescopic rod; 263. Spring one;

[0036] 30. Constraint unit; 31. Support ring; 32. Spring two;

[0037] 40. Flattening unit; 41. Convex rod; 42. Friction plate; 421. Convex teeth;

[0038] 50. Auxiliary ejection assembly; 51. Sliding part; 52. Spring three; 53. Ejection part; 54. Electromagnet. Detailed implementation manners

[0039] Next, the technical solution of a riveting device for distribution box production in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work belong to the scope of protection of the present invention.

[0040] As Figures 1-10As shown in the figure, a riveting device for the production of distribution boxes provided by the present invention includes a riveting table 10. A hydraulic rod 11 is fixedly installed on the top of the riveting table 10. The telescopic end of the hydraulic rod 11 is fixed with an upper die base 13. A lower die base 12 is fixedly connected to the riveting table 10 and is located directly below the upper die base 13. A positioning groove for placing a riveting nut is provided at the top end of the lower die base 12. During riveting, the riveting nut is placed in the positioning groove, and then the hole position of the distribution box assembly is sleeved on the top end of the riveting nut. By pressing down the assembly, it is squeezed with the riveting nut. The riveting nut squeezes and deforms the hole position of the assembly, and realizes a firm connection with the hole position.

[0041] Referring to Figure 2 and Figure 3 , it further includes a positioning mechanism 20. The positioning mechanism 20 includes a riveting head 21 slidably connected to the bottom end of the upper die base 13. A return spring 22 is provided between the riveting head 21 and the upper die base 13. The return spring 22 is always in a compressed state, applying a downward elastic force to the riveting head 21. When the hydraulic rod 11 extends and drives the upper die base 13 to move downward, the upper die base 13 drives the riveting head 21 to move downward through the return spring 22. When the riveting head 21 is supported by the assembly of the distribution box and cannot move downward continuously, the upper die base 13 can still move downward until the upper die base 13 presses down the riveting head 21 to perform riveting on the assembly. A connecting rod 23 is fixedly connected inside the upper die base 13. The bottom end of the connecting rod 23 is fixed with an extrusion block 24. The top and bottom edges of the extrusion block 24 are both set as inclined surfaces. An inner support plate 25 is elastically connected inside the extrusion block 24. Specifically, the inner support plate 25 is slidably connected to the extrusion block 24 and a spring is provided between the two. A pushing component 26 is arranged at the bottom of the riveting head 21;

[0042] Referring to Figure 3 and Figure 10 , when riveting an assembly with a larger thickness, the embedding depth of the riveting nut in the assembly is less than the depth of the hole position of the assembly. Therefore, during riveting, the position of the hole wall of the assembly that is not supported by the riveting nut is prone to deformation. For this reason, a constraint unit 30 is provided. The constraint unit 30 includes a support ring 31 movably connected to the bottom end of the riveting head 21. The diameter of the support ring 31 is equal to the diameter of the riveting hole position. After the support ring 31 is embedded in the riveting hole position of the assembly, it supports and constrains the material around the hole wall, avoiding the material at the squeezed part of the assembly from flowing towards the hole position when the riveting head 21 performs riveting, resulting in uneven material around the hole position of the assembly and stress concentration, thereby improving the riveting quality. And after the support ring 31 is embedded in the riveting hole position, it can also play a positioning role, avoiding the occurrence of position deviation again during riveting after the assembly is positioned, and further improving the accuracy of riveting. A second spring 32 is provided between the support ring 31 and the riveting head 21.

[0043] Referring to Figure 4, the driving component 26 includes a mounting cylinder 261 slidably connected inside the support ring 31. A spring telescopic rod 262 is slidably connected inside the mounting cylinder 261, and a first spring 263 is provided between the spring telescopic rod 262 and the mounting cylinder 261;

[0044] During the downward pressing of the extrusion block 24, the spring telescopic rod 262 is extruded through the inclined surface, causing the spring telescopic rod 262 to move radially away from the center point of the mounting cylinder 261, thereby supporting the inner wall of the hole position of the fitting. Under the support of the four spring telescopic rods 262, the fitting is positioned through force balance, so that the hole position on the fitting is aligned with the mounting cylinder 261 up and down. After the extrusion block 24 moves into the internal thread insert, the inner support plate 25 supports the inner wall of the internal thread insert under the spring force, and also positions the internal thread insert. Through the spring telescopic rod 262 and the inner support plate 25, the internal support positioning of the riveting hole position and the internal thread insert is carried out respectively, so that the hole position of the fitting is aligned with the internal thread insert, thereby ensuring the accuracy of riveting and ensuring the firmness of the connection between the internal thread insert and the hole position of the fitting after riveting.

[0045] Referring to Figure 3 、 Figure 4 and Figure 5 , since during the riveting process, it is inevitable that debris will enter the positioning groove of the lower die base 12, causing the placed internal thread insert to tilt, which in turn causes damage to the fitting during riveting. Therefore, a leveling unit 40 is also provided. The leveling unit 40 includes a convex rod 41 fixed to the top of the support ring 31. A spiral guide groove is provided on the outer surface of the connecting rod 23, and the convex rod 41 is embedded in the guide groove. After the riveting head 21 is supported by the fitting, when the connecting rod 23 moves downward relative to the riveting head 21, the convex rod 41 will slide in the guide groove, thereby driving the support ring 31 to rotate. The top of the support ring 31 is rotatably connected to an annular member fixed to the bottom end of the second spring 32, which is used to prevent the second spring 32 from being twisted due to the rotation of the support ring 31;

[0046] The rotation of the support ring 31 drives the mounting cylinder 261 to rotate. The bottom of the mounting cylinder 261 is movably connected with a friction plate 42. The friction plate 42 includes two groups of convex teeth 421 fixed to the upper surface of the friction plate 42 and the inside of the mounting cylinder 261. When the friction plate 42 contacts the internal thread insert, the mounting cylinder 261 retracts into the support ring 31, and the friction plate 42 retracts into the mounting cylinder 261. At this time, when the two groups of convex teeth 421 are engaged with each other, the rotation of the mounting cylinder 261 drives the friction plate 42 to rotate. The friction plate 42 drives the internal thread insert to deflect under the action of friction. A chip removal groove is provided on the inner wall of the top end of the lower die base 12. The deflection of the internal thread insert causes the debris blocked at its bottom to enter the chip removal groove, restoring the flatness of the nut. Moreover, the friction between the dense chip removal grooves and the internal thread insert can also remove the burrs on the bottom surface of the internal thread insert, further improving the flatness of the internal thread insert.

[0047] After the riveting is completed and the connecting rod 23 moves upward, the mounting cylinder 261 will rotate in the reverse direction. At this time, the mounting cylinder 261 cannot drive the friction plate 42 to rotate through the convex teeth 421. The frictional force between the friction plate 42 and the riveting nut causes the friction plate 42 not to rotate. When the mounting cylinder 261 rotates, it will overcome the elastic force of the second spring 32 and drive the support ring 31 to move up and down continuously under the obstruction of the convex teeth 421, causing looseness between the support ring 31 and the fitting, which facilitates the separation of the support ring 31 from the fitting.

[0048] Referring to Figure 6 , in order to facilitate the ejection of the riveting nut after riveting and discharge the debris in the lower die base 12, an auxiliary ejection assembly 50 is provided inside the lower die base 12. The auxiliary ejection assembly 50 includes a sliding member 51 slidably connected to the inside of the lower die base 12. A third spring 52 is provided at the bottom of the sliding member 51. An ejector member 53 sealed with the inner wall of the lower die base 12 is slidably connected inside the sliding member 51. The ejector member 53 is made of iron. When the extrusion block 24 pushes the ejector member 53 downward, a negative pressure is formed inside the lower die base 12, and external air enters the inside of the lower die base 12 through the gap between the lower die base 12 and the riveting nut and the chip discharge groove. A discharge channel is provided inside the lower die base 12. An electromagnet 54 is fixedly installed at the bottom of the extrusion block 24. The top of the ejector member 53 is conical to prevent debris from affecting the adsorption of the ejector member 53 by the electromagnet 54. After the extrusion block 24 moves upward, the sliding member 51 drives the ejector member 53 to move upward under the elastic force of the third spring 52, and can push the debris into the discharge channel;

[0049] After the electromagnet 54 adsorbs the ejector member 53, after the riveting is completed, the connecting rod 23 and the extrusion block 24 move upward, driving the electromagnet 54 and the ejector member 53 to move upward, and the riveting nut is pushed upward by the ejector member 53 for riveting processing again.

[0050] Working principle: Place the riveting nut in the positioning groove on the lower die base 12, then sleeved the riveting hole position of the fitting on the riveting nut, control the hydraulic rod 11 to extend and drive the upper die base 13, the return spring 22 and the riveting head 21 to move downward. The riveting head 21 drives the support ring 31 and the mounting cylinder 261 to move downward. The diameter of the mounting cylinder 261 is smaller than the diameter of the riveting hole position;

[0051] Referring to Figure 9 and Figure 10, when the riveting hole position of the fitting is not aligned with the support ring 31, when the support ring 31 contacts the fitting, its downward movement is blocked. When the riveting head 21 continues to move downward, the support ring 31 retracts into the interior of the riveting head 21, the second spring 32 is compressed, and the installation cylinder 261 enters the interior of the hole position. When the riveting head 21 contacts the fitting, the upper die base 13 continues to move downward, driving the connecting rod 23 to move downward, and the return spring 22 is gradually compressed. The riveting head 21 stops moving downward. The connecting rod 23 moves downward, driving the extrusion block 24 and the inner support plate 25 to move. The extrusion block 24 moves downward to extrude the spring telescopic rod 262, causing the spring telescopic rod 262 to move outward and abut against the inner wall of the hole position of the fitting. The hole position of the fitting is in force balance under the support of the four spring telescopic rods 262, and the center point coincides with the installation cylinder 261. At this time, the support ring 31 is aligned with the hole position. Under the elastic force of the second spring 32, the support ring 31 enters the interior of the hole position and its bottom surface contacts the riveting nut. The installation cylinder 261 and the friction plate 42 are blocked by the riveting nut. The installation cylinder 261 contracts into the interior of the support ring 31, and the friction plate 42 contacts the top surface of the riveting nut and is pushed into the interior of the installation cylinder 261, and the two groups of convex teeth 421 are engaged with each other. Then, the extrusion block 24 continues to move downward into the interior of the riveting nut. The riveting nut is centered under the support of the four inner support plates 25 and is aligned with the hole position;

[0052] When the riveting hole position of the fitting is aligned with the support ring 31, the downward movement of the riveting head 21 directly drives the second spring 32 and the support ring 31 to move downward, so that the support ring 31 enters the hole position of the fitting;

[0053] The connecting rod 23 continues to move downward, causing the convex rod 41 to slide in the guiding groove, thereby driving the support ring 31 and the installation cylinder 261 to rotate. Under the action of the two groups of convex teeth 421, the rotation of the installation cylinder 261 drives the friction plate 42 to rotate, driving the riveting nut to deflect, so that the debris blocking the bottom of the nut enters the chip removal groove, restoring the flatness of the nut;

[0054] The extrusion block 24 drives the electromagnet 54 to continue to move downward. The electromagnet 54 presses down on the ejector 53, driving the sliding part 51 to move downward. The third spring 52 is compressed. The downward movement of the sliding part 51 and the ejector 53 creates a negative pressure inside the lower die base 12. External air enters the interior of the lower die base 12 through the gap between the lower die base 12 and the riveting nut and the chip removal groove, and the debris inside the chip removal groove is brought into the interior of the lower die base 12;

[0055] The upper die holder 13 moves downward to press down the riveting head 21. The riveting head 21 squeezes the top of the fitting, causing the fitting and the rivet nut to be squeezed. The rivet nut squeezes and deforms the riveting hole position of the fitting and firmly combines with the hole position to complete the riveting. Then, the hydraulic rod 11 is controlled to contract to drive the upper die holder 13 to move upward. The connecting rod 23, the extrusion block 24, and the electromagnet 54 move upward. Since the support ring 31 wraps around the outside of the mounting cylinder 261 at this time, when the extrusion block 24 resets, the spring telescopic rod 262 will be compressed by itself when being squeezed, and the spring telescopic rod 262 will not slide relative to the mounting cylinder 261. The elastic force of the spring three 52 drives the sliding part 51 and the ejecting part 53 to move upward. The ejecting part 53 pushes the debris on its top into the discharge channel. After the sliding part 51 and the ejecting part 53 reset, the electromagnet 54 continues to move upward and drives the ejecting part 53 to move upward through magnetic attraction, so that the ejecting part 53 exerts an upward force on the rivet nut to assist in removing the rivet nut.

[0056] During the process of the connecting rod 23 moving upward relative to the riveting head 21, the support ring 31 and the mounting cylinder 261 are driven to rotate in the opposite direction through the convex rod 41. At this time, under the action of the frictional force between the friction plate 42 and the rivet nut, the mounting cylinder 261 cannot drive the friction plate 42 to rotate through the convex teeth 421. Therefore, when the mounting cylinder 261 rotates, it will overcome the elastic force of the spring two 32 under the obstruction of the convex teeth 421 and drive the support ring 31 to move up and down continuously, causing looseness between the support ring 31 and the fitting, which is convenient for the separation of the support ring 31 from the fitting.

[0057] As described above, only the preferred specific embodiments of the present invention are provided, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention for a riveting device used in the production of distribution boxes, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A riveting device for the production of distribution boxes, comprising a riveting table (10), a hydraulic rod (11) is fixedly installed on the top of the riveting table (10), the telescopic end of the hydraulic rod (11) is fixed with an upper die holder (13), and a lower die holder (12) located directly below the upper die holder (13) is fixedly connected to the riveting table (10), characterized in that, It further includes: A positioning mechanism (20), the positioning mechanism (20) includes a riveting head (21) slidably connected to the bottom end of the upper die base (13), a return spring (22) is provided between the riveting head (21) and the upper die base (13), a connecting rod (23) is fixedly connected inside the upper die base (13), an extrusion block (24) is fixed to the bottom end of the connecting rod (23), an inner support plate (25) is elastically connected inside the extrusion block (24), and a pushing component (26) is arranged at the bottom of the riveting head (21); The pushing component (26) includes an installation cylinder (261), a spring telescopic rod (262) is slidably connected inside the installation cylinder (261), and a first spring (263) is provided between the spring telescopic rod (262) and the installation cylinder (261); During the downward pressing process of the extrusion block (24), the riveting hole position and the riveting nut are internally supported and positioned through the spring telescopic rod (262) and the inner support plate (25) respectively.

2. The riveting device for the production of distribution boxes according to claim 1, characterized in that, It further includes a constraint unit (30), the constraint unit (30) includes a support ring (31) movably connected to the bottom end of the riveting head (21) and slidably connected to the installation cylinder (261), the diameter of the support ring (31) is equal to the diameter of the riveting hole position, a second spring (32) is provided between the support ring (31) and the riveting head (21), and the support ring (31) is located inside the riveting hole position to support and constrain the material.

3. The riveting device for the production of distribution boxes according to claim 1, characterized in that, It further includes a flattening unit (40), the flattening unit (40) includes a convex rod (41) fixed to the top of the support ring (31), a spiral guiding groove is formed outside the connecting rod (23), the convex rod (41) is embedded in the guiding groove, and a chip discharging groove is formed on the inner wall of the top end of the lower die base (12).

4. A riveting device for the production of distribution boxes according to claim 3, characterized in that, The bottom of the installation cylinder (261) is movably connected with a friction plate (42), and the friction plate (42) includes two groups of convex teeth (421) fixed to the upper surface of the friction plate (42) and the inside of the installation cylinder (261).

5. A riveting device for the production of distribution boxes according to claim 1, characterized in that, An auxiliary ejection component (50) is arranged inside the lower die base (12), the auxiliary ejection component (50) includes a sliding member (51) slidably connected inside the lower die base (12), a third spring (52) is provided at the bottom of the sliding member (51), and an ejection member (53) sealed with the inner wall of the lower die base (12) is slidably connected inside the sliding member (51).

6. The riveting device for the production of distribution boxes according to claim 5, characterized in that, A discharge channel is provided inside the lower die base (12), and the top of the ejection member (53) is conical.

7. A riveting device for the production of distribution boxes according to claim 5, characterized in that, An electromagnet (54) is fixedly installed at the bottom of the extrusion block (24).

8. A riveting device for the production of distribution boxes according to claim 2, characterized in that, A ring-shaped member fixed to the bottom end of the second spring (32) is rotatably connected to the top of the support ring (31).

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