A steering gear rack press block riveting device and a riveting method

Abstract

The present invention discloses a riveting device for a steering gear rack pressing block, including: a riveting die, an upper punch, and a lower punch. The upper punch is arranged above the opening of the riveting die, and the lower punch is movably arranged in the riveting die and can move up and down. A base is placed in the upper opening of the riveting die. The upper punch presses down on the gasket at the top of the base, and the lower punch presses up on the bottom of the base. The present invention belongs to the technical field of riveting equipment. The base is driven by a support member to move down into the interior of the riveting die, so that the bottom end of the base is in snap-fit with the top end of the lower punch. After the upper punch moves down, it contacts the top end of the base and the gasket. As the upper punch continuously presses down and the lower punch continuously presses up, the base and the gasket are riveted and assembled in the riveting die, and at the same time, the shaping operation is completed, which is beneficial to improving the actual riveting effect, thereby improving the product precision of the rack pressing block and being conducive to the production efficiency of the enterprise.

Description

Technical Field

[0001] The present invention relates to the technical field of riveting equipment, and particularly relates to a steering gear rack press block riveting device and a riveting method. Background Art

[0002] In an automotive steering gear, a rack press block is a widely used key component for pre-tightening the rack. By adjusting the nut, the clearance between the press block and the rack is controlled, thereby regulating the axial movement force of the steering gear rack.

[0003] As Figure 5 shown, most of the existing rack press blocks are composed of a base 7 and a gasket 18. The base 7 is cylindrical, and the upper end of the cylinder has a groove, while the gasket 18 is a wear-resistant gasket. It is necessary to pre-install the gasket 18 on the top of the base 7 first, and then rivet and combine the two through a riveting device. However, most of the current riveting devices are of traditional structural design and only rely on the interference amount of interference fit to complete the riveting assembly. During assembly, the pressure is small, and it is difficult to shape the gasket 18 and the base 7 during the assembly process, resulting in poor accuracy of the rack press block after assembly, which is not conducive to the production efficiency of enterprises. Summary of the Invention

[0004] Therefore, the present invention provides a steering gear rack press block riveting device and a riveting method to solve the above problems in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A steering gear rack press block riveting device includes: a riveting die, an upper punch, and a lower punch. The upper punch is arranged above the opening of the riveting die, the lower punch is movably arranged in the riveting die and can move up and down. The base is placed in the upper opening of the riveting die, and the gasket on the top of the base is pressed down by the upper punch, and the bottom of the base is pressed up by the lower punch;

[0007] A support member, which is slidably sleeved in the riveting die and slidably connected to the outer wall of the lower punch. The upper end surface of the support member is flush with the upper end surface of the riveting die, and is used to support the bottom of the base. The support member can move up and down, and drives the base carried thereon to move down into the riveting die for riveting assembly;

[0008] A feed plate, which is installed on the top of one side of the riveting die, and the upper end surface of the feed plate is flush with the upper end surface of the riveting die. The base on the upper end surface of the feed plate is pushed to the opening of the riveting die for riveting by a pushing device;

[0009] The discharge plate is installed at the top of the other side of the riveting die, and the upper end surface of the discharge plate is flush with the upper end surface of the riveting die. The base after being pushed out by the riveting assembly is pushed out from the discharge plate by a pushing device;

[0010] The first ejecting device, a fixing plate is installed at the lower opening of the riveting die, a first ejecting rod is installed at the bottom of the lower punch, and the bottom end of the first ejecting rod slides through the fixing plate downward and extends downward and is connected to the movable end of the first ejecting device;

[0011] The second ejecting device, a movable plate is arranged at the lower end of the riveting die, a connecting rod is installed at the bottom end of the support member, the bottom end of the connecting rod slides through the fixing plate downward and extends downward and is fixedly connected to the movable plate, and the bottom of the movable plate is connected to the movable end of the second ejecting device through a second ejecting rod;

[0012] A limiting component is arranged on the side of the riveting die away from the feeding plate. The limiting component includes a limiting plate which is slidably arranged on the inner wall of the side of the riveting die away from the feeding plate and is height-adjustable. The limiting plate moves upward and is higher than the upper end surface of the riveting die to block the advancement of the base to be riveted;

[0013] One end of the discharge plate close to the riveting die has a cavity inside. The limiting component further includes a lifting plate and a micro elevator. The micro elevator is installed in the cavity. One end of the lifting plate is fixedly connected to the movable end of the micro elevator. The other end of the lifting plate penetrates and extends into the riveting die and is fixedly connected to the bottom end of the limiting plate. The height of the limiting plate is adjusted by driving the lifting plate to lift by the micro elevator

[0014] The pushing device is a cylinder, an electric push rod or a motor screw combination structure in the prior art, etc.

[0015] As a further optimized solution of the present invention, the support member is an annular sleeve, and the axes of the riveting die, the support member and the lower punch coincide.

[0016] As a further optimized solution of the present invention, baffles are installed on both long sides of the feeding plate and the discharge plate. The base is slidably arranged on the feeding plate or the discharge plate, and the outer wall of the base is slidably connected to the inner side surface of the adjacent baffle.

[0017] As a further optimized solution of the present invention, a first chute with an open top is opened on the inner wall of the side of the riveting die close to the discharge plate. The limiting plate is slidably arranged in the first chute. A second chute is opened in the riveting die. The first chute is communicated with the cavity through the second chute. The lifting plate is slidably arranged in the second chute.

[0018] As a further optimized solution of the present invention, the limiting plate is an arc-shaped plate with a central angle of 20° to 180°, and the cross-section of the first chute is arc-shaped and adapted to the limiting plate.

[0019] As a further optimized solution of the present invention, the device further includes a mold base, which is fixedly sleeved on the outer wall of the bottom end of the riveting mold, and the upper end surface of the mold base is lower than the upper end surface of the riveting mold to form a stepped shape. The feeding plate and the discharging plate are respectively installed on both sides of the step. The movable plate is slidably arranged at the bottom of the inner cavity of the mold base. Small holes adapted to the first ejector rod and the second ejector rod are opened at the bottom of the mold base. The first ejector rod and the second ejector rod slidably penetrate through the small holes for lifting adjustment and ejecting operation.

[0020] A riveting method using the above-mentioned steering gear rack press block riveting device is as follows:

[0021] S1 Push the base to be riveted on the feeding plate to the upper opening of the riveting mold through a pushing device, so that the base is carried by the supporting member.

[0022] S2 Drive the base to gradually move down into the inner cavity of the riveting mold through the supporting member, so that the bottom end of the base is in contact with the top end of the lower punch. At the same time, move the upper punch down into the riveting mold, so that the bottom end of the upper punch is in contact with the gasket. Through the downward pressure of the upper punch and the upward push of the lower punch, the base and the gasket are riveted and assembled while the shaping is completed.

[0023] S3 After the assembly is completed, the upper punch and the supporting member move up and reset successively, so that the lower end surface of the assembled base is flush with the upper end surface of the riveting mold. Then, push the assembled base to the discharging plate through the pushing device for discharging.

[0024] S4 Repeat the above steps S1 - S3 to achieve continuous riveting.

[0025] The present invention has the following advantages:

[0026] (1) By installing the feeding plate and the discharging plate on both sides of the riveting mold respectively, it is convenient for the pushing device to push the base to be riveted to the riveting station, and at the same time, it is also convenient to push the base after riveting and ejecting for discharging.

[0027] (2) Through the liftable design of the supporting member, the supporting member can drive the base thereon to move down into the interior of the riveting mold. On the one hand, the bottom end of the base is clamped and fitted with the top end of the lower punch. On the other hand, after the upper punch moves down, it is in contact with the top end of the base and the gasket. As the upper punch continuously presses down and the lower punch continuously pushes up, the base and the gasket are riveted and assembled in the riveting mold, and at the same time, the shaping operation is completed, which is beneficial to improving the actual riveting effect, thereby improving the product precision of the rack press block and being conducive to the production efficiency of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 FIG. 1 is a schematic structural view of the first state of a riveting device for a steering gear rack pressing block provided by the present invention;

[0029] Figure 2 FIG. 2 is a schematic structural view of the second state of a riveting device for a steering gear rack pressing block provided by the present invention;

[0030] Figure 3 FIG. 3 is a schematic structural view of a limiting component of a riveting device for a steering gear rack pressing block provided by the present invention;

[0031] Figure 4 FIG. 4 is a schematic top view structural view of a riveting die of a riveting device for a steering gear rack pressing block provided by the present invention;

[0032] Figure 5 FIG. 5 is a schematic structural view of a rack pressing block in the prior art of the present invention.

[0033] In the figures: 1, riveting die; 2, upper punch; 3, lower punch; 4, support member; 5, feeding plate; 6, discharging plate; 7, base; 8, fixing plate; 9, first ejector rod; 10, movable plate; 11, connecting rod; 12, second ejector rod; 13, limiting component; 131, limiting plate; 132, lifting plate; 133, micro lifter; 14, die seat; 15, cavity; 16, first chute; 17, second chute; 18, gasket. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0034] The following specific embodiments illustrate the implementation manners of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of them. Based on the embodiments in the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] As shown in FIGS. 1 and 2, a riveting device for a steering gear rack pressing block includes: a riveting die 1, an upper punch 2, and a lower punch 3. The upper punch 2 is arranged above the opening of the riveting die 1, and the lower punch 3 is movably arranged in the riveting die 1 and can move up and down. The base 7 is placed in the upper opening of the riveting die 1. The gasket 18 on the top of the base 7 is pressed down by the upper punch 2, and the bottom of the base 7 is pressed up by the lower punch 3; Figure 1 Figure 2

[0036] ​​The support member 4 is slidably sleeved within the riveting die 1 and is slidably connected to the outer wall of the lower punch 3. The upper end surface of the support member 4 is flush with the upper end surface of the riveting die 1, and is used to support the bottom of the base 7. The support member 4 can move up and down. By driving the base 7 carried thereon by the support member 4 to move down into the riveting die 1 for riveting assembly, the base 7 is placed in the inner cavity of the riveting die 1 for riveting, and the inner cavity of the riveting die 1 is adapted to the external shape of the base 7, so that during the riveting process, the base 7 can be better stressed, thereby performing shaping operations while completing the riveting, which is beneficial to improving the actual riveting accuracy;

[0037] The feeding plate 5 is installed at the top of one side of the riveting die 1, and the upper end surface of the feeding plate 5 is flush with the upper end surface of the riveting die 1. The base 7 on the upper end surface of the feeding plate 5 is pushed to the opening of the riveting die 1 for riveting by a pushing device;

[0038] The discharging plate 6 is installed at the top of the other side of the riveting die 1, and the upper end surface of the discharging plate 6 is flush with the upper end surface of the riveting die 1. The base 7 after the riveting assembly is pushed out is pushed out from the discharging plate 6 by a pushing device;

[0039] The pushing device is a cylinder, an electric push rod or a motor screw combination structure in the prior art, etc. Here, an electric push rod is preferably used. The electric push rod has two pushing strokes. In the first pushing stroke, the electric push rod pushes the base 7 to be riveted on the feeding plate 5 onto the support member 4, and in the second pushing stroke, the electric push rod pushes the base 7 after the assembly is pushed out towards the discharging plate 6;

[0040] It should be noted that there is a feeding port between the feeding plate 5 and the movable end of the electric push rod, and the feeding port is connected to a feeding device. The feeding device can be a transfer device such as a manipulator or a vibrating disk. The discharging port of the discharging plate 6 is connected to a conveying device for conveying the base 7 after the riveting assembly is completed to the next process.

[0041] Specifically, as Figure 1 and Figure 2 shown, the device further includes a first ejecting device (not shown in the figure). A fixing plate 8 is installed at the lower opening of the riveting die 1. A first ejecting rod 9 is installed at the bottom of the lower punch 3. The bottom end of the first ejecting rod 9 slidably penetrates through the fixing plate 8 and extends downward and is connected to the movable end of the first ejecting device. By driving the first ejecting rod 9 to move up and down by the first ejecting device, the height of the lower punch 3 can be adjusted to apply an upward pressing force to the base 7 in the riveting die 1. At the same time, in combination with the upward movement of the support member 4, the base 7 after the riveting assembly is completed can be ejected;

[0042] Further, the device further includes a second ejecting device (not shown in the figure). A movable plate 10 is provided at the lower end of the riveting die 1. A connecting rod 11 is installed at the bottom end of the support member 4. The bottom end of the connecting rod 11 slidably penetrates through the fixing plate 8 and extends downward and is fixedly connected to the movable plate 10. The bottom of the movable plate 10 is connected to the movable end of the second ejecting device through a second ejecting rod 12. By driving the second ejecting rod 12 to move downward through the second ejecting device, the movable plate 10 drives the connecting rod 11 and the support member 4 to move downward synchronously, so as to transfer the base 7 on the support member 4 to the upper part of the inner cavity of the riveting die 1 for riveting operation. By driving the second ejecting rod 12 to move upward through the second ejecting device, the movable plate 10 drives the connecting rod 11 and the support member 4 to move upward synchronously, so as to eject the riveted base 7 to the initial position, facilitating the discharging operation after the riveting of the base 7;

[0043] It should be noted that both the first ejecting device and the second ejecting device are existing longitudinal pushing devices, such as cylinders, oil cylinders, electric push rods, etc.

[0044] Specifically, the support member 4 is an annular sleeve, and the axes of the riveting die 1, the support member 4, and the lower punch 3 coincide. The outer diameter of the support member 4 is the same as the outer diameter of the base 7. When the pushing device pushes the base 7 above the opening of the riveting die 1, the bottom end of the base 7 coincides with the upper end face of the support member 4, so that the support member 4 drives the base 7 to move downward into the riveting die 1, facilitating subsequent riveting and shaping operations, and also facilitating the ejection after assembly.

[0045] Specifically, as Figure 4 shown, baffles are installed on both long sides of the feeding plate 5 and the discharging plate 6. The base 7 is slidably arranged on the feeding plate 5 or the discharging plate 6, and the outer wall of the base 7 is slidably connected to the inner side surface of the adjacent baffle, which can improve the pushing stability of the base 7.

[0046] Specifically, as Figures 1-3 shown, a limiting component 13 is provided on the side of the riveting die 1 away from the feeding plate 5. The limiting component 13 includes a limiting plate 131. The limiting plate 131 is slidably arranged on the inner wall on the side of the riveting die 1 away from the feeding plate 5 and its height is adjustable. By moving the limiting plate 131 upward and higher than the upper end face of the riveting die 1 to block the advancement of the base 7 to be riveted, it is convenient for the lower end face of the base 7 to coincide with the upper end face of the support member 4, facilitating the downward riveting and ejection operations of the base 7;

[0047] Further, as Figure 3As shown in the figure, the inner part of one end of the discharge plate 6 close to the riveting die 1 has a cavity 15. The limiting component 13 further includes a lifting plate 132 and a micro elevator 133. The micro elevator 133 is installed in the cavity 15. One end of the lifting plate 132 is fixedly connected to the movable end of the micro elevator 133. The other end of the lifting plate 132 penetrates and extends into the riveting die 1 and is fixedly connected to the bottom end of the limiting plate 131. The height of the limiting plate 131 is adjusted by driving the lifting plate 132 to lift and lower through the micro elevator 133. By driving the lifting plate 132 to move upward through the micro elevator 133, the limiting plate 131 moves upward and protrudes above the riveting die 1, so as to block the base 7 during the feeding push, so that the base 7 is at the riveting station, which is beneficial to improving the actual processing accuracy. By driving the lifting plate 132 to move downward through the micro elevator 133, the limiting plate 131 moves downward into the riveting die 1, so that the pushing device can push the base 7 ejected after assembly to the discharge plate 6, facilitating the actual blanking operation;

[0048] The micro elevator can be a micro electric push rod or a motor lead screw combination structure in the prior art, etc.;

[0049] Furthermore, a first chute 16 with an open top is formed on the inner wall of one side of the riveting die 1 close to the discharge plate 6. The limiting plate 131 is slidably arranged in the first chute 16. A second chute 17 is formed in the riveting die 1. The first chute 16 is communicated with the cavity 15 through the second chute 17. The lifting plate 132 is slidably arranged in the second chute 17, which is beneficial to improving the lifting stability of the limiting plate 131 and the lifting plate 132;

[0050] Furthermore, the limiting plate 131 is an arc-shaped plate with a central angle of 20° - 180°. The cross-section of the first chute 16 is arc-shaped and is adapted to the limiting plate 131. As Figure 4 shown, the central angle of the limiting plate 131 is 20°, so as to block and protect one side of the upper opening of the riveting die 1 close to the discharge plate 6, preventing the pushing deviation of the base 7 to be riveted from going wrong and affecting the normal process;

[0051] Furthermore, evenly distributed balls are installed on one side of the limiting plate 131 close to the inner wall of the first chute 16 and on the surface of the lifting plate 132 close to the side wall of the second chute 17. Through the arrangement of the balls, the friction between each other can be reduced, thereby improving the lifting stability of the limiting plate 131 and also improving the actual service life.

[0052] The device further includes a die holder 14 which is fixedly sleeved on the outer wall of the bottom end of the riveting die 1, and the upper end surface of the die holder 14 is lower than the upper end surface of the riveting die 1 to form a stepped shape. The feeding plate 5 and the discharging plate 6 are respectively installed on both sides of the step. The movable plate 10 is slidably arranged at the bottom of the inner cavity of the die holder 14. Small holes adapted to the first ejector rod 9 and the second ejector rod 12 are formed at the bottom of the die holder 14. The first ejector rod 9 and the second ejector rod 12 slidably penetrate through the small holes for lifting adjustment and ejection operation, which is beneficial to improving the stability of actual lifting and ejection.

[0053] A riveting method using the above-mentioned steering gear rack press block riveting device is as follows:

[0054] S1 Push the base 7 to be riveted on the feeding plate 5 to the upper opening of the riveting die 1 through a pushing device, so that the base 7 is carried by the support member 4.

[0055] S2 Drive the base 7 to gradually move downward into the inner cavity of the riveting die 1 through the support member 4, so that the bottom end of the base 7 contacts the top end of the lower punch 3. At the same time, move the upper punch 2 downward and insert it into the riveting die 1, so that the bottom end of the upper punch 2 contacts the gasket 18. Through the downward pressure of the upper punch 2 and the upward push of the lower punch 3, the base 7 and the gasket 18 are riveted and assembled while the shaping is completed.

[0056] S3 After the assembly is completed, the upper punch 2 and the support member 4 are successively moved upward and reset, so that the lower end surface of the assembled base 7 is flush with the upper end surface of the riveting die 1. Then, push the assembled base 7 to the discharging plate 6 through the pushing device for discharging.

[0057] S4 Repeat the above steps S1 - S3 to achieve continuous riveting.

[0058] It should be noted that for the rack press block products assembled by traditional interference press-fitting, the symmetry and parallelism accuracy can only reach 0.15 mm, the ejection force of the gasket is small, only 200 N can be achieved, and the adhesion degree after the gasket and the base are assembled is poor, only 0.1 mm can be achieved. However, for the rack press block assembled by the above-mentioned riveting device and riveting method, the symmetry and parallelism accuracy can reach 0.05 mm, the ejection force of the gasket can reach 400 N, and the adhesion degree after the gasket and the base are assembled can reach 0.03 mm. The accuracy is about 3 times higher than that of the interference press-fitting method, which can significantly improve the actual product quality and production efficiency.

[0059] In summary, by installing a feeding plate 5 and a discharging plate 6 on both sides of the riveting die 1 respectively, it is convenient for the pushing device to push the base 7 to be riveted to the riveting station, and at the same time, it is also convenient to push the base 7 out after riveting and ejection; through the liftable design of the support member 4, the support member 4 can drive the base 7 thereon to move down into the interior of the riveting die 1. On the one hand, the bottom end of the base 7 is clamped and fitted with the top end of the lower punch 3. On the other hand, after the upper punch 2 moves down, it contacts the top end of the base 7 and the gasket 18. As the upper punch 2 continuously presses down and the lower punch 3 continuously pushes up, the base 7 and the gasket 18 complete the riveting assembly in the riveting die 1, and at the same time, the shaping operation is completed, which is beneficial to improving the actual riveting effect, thereby improving the product precision of the rack pressing block and being conducive to the production efficiency of the enterprise.

Claims

1. A steering gear rack pressing block riveting device, characterized in that: include: A riveting die (1), an upper punch (2), and a lower punch (3), wherein the upper punch (2) is arranged above the opening of the riveting die (1), and the lower punch (3) is movably arranged in the riveting die (1) and can move up and down. The base (7) is placed in the upper opening of the riveting die (1), and the liner (18) on the top of the base (7) is moved downward and pressed by the upper punch (2), and the bottom of the base (7) is pressed upward and pressed by the lower punch (3); A support member (4), wherein the support member (4) is slidably mounted in the riveting die (1) and is slidably connected to the outer wall of the lower punch (3); the upper end surface of the support member (4) is flush with the upper end surface of the riveting die (1) and is used to support the bottom of the base (7); the support member (4) can move up and down, and the base (7) supported thereon is driven by the support member (4) to move down into the riveting die (1) for riveting assembly; A feed plate (5), the feed plate (5) being mounted on the top of one side of the riveting die (1), and the upper end surface of the feed plate (5) being flush with the upper end surface of the riveting die (1), and the base (7) on the upper end surface of the feed plate (5) being pushed to the opening of the riveting die (1) by a pushing device for riveting; A discharge plate (6), the discharge plate (6) being mounted on the top of the other side of the riveting die (1), and the upper end surface of the discharge plate (6) being flush with the upper end surface of the riveting die (1), and the base (7) after the riveting assembly is ejected is pushed out from the discharge plate (6) by a pushing device; A first ejection device, wherein a fixed plate (8) is installed at the lower opening of the riveting die (1), and a first ejector rod (9) is installed at the bottom of the lower punch (3), wherein the bottom end of the first ejector rod (9) slides through the fixed plate (8) and extends downward and is connected to the movable end of the first ejection device; A second ejection device, wherein a movable plate (10) is provided at the lower end of the riveting die (1), a connecting rod (11) is installed at the bottom end of the support member (4), the bottom end of the connecting rod (11) slides through the fixed plate (8) and extends downward and is fixedly connected to the movable plate (10), and the bottom of the movable plate (10) is connected to the movable end of the second ejection device via a second ejector rod (12); A limiting assembly (13) is provided on a side of the riveting die (1) away from the feed plate (5), the limiting assembly (13) comprising a limiting plate (131), the limiting plate (131) being slidably provided on an inner wall of a side of the riveting die (1) away from the feed plate (5) and having an adjustable height, and the limiting plate (131) is moved upward and is higher than the upper end surface of the riveting die (1) to block the base (7) to be riveted from moving forward; The discharge plate (6) has a cavity (15) inside one end close to the riveting die (1), and the limit assembly (13) further comprises a lifting plate (132) and a micro lift (133). The micro lift (133) is installed in the cavity (15), one end of the lifting plate (132) is fixedly connected to the movable end of the micro lift (133), and the other end of the lifting plate (132) penetrates and extends into the riveting die (1) and is fixedly connected to the bottom end of the limit plate (131). The micro lift (133) drives the lifting plate (132) to rise and fall, thereby adjusting the height of the limit plate (131).

2. A steering gear rack pressing block riveting device according to claim 1, characterized in that: The support member (4) is an annular sleeve, and the axes of the riveting die (1), the support member (4) and the lower punch (3) coincide with each other.

3. A steering gear rack pressing block riveting device according to claim 1, characterized in that: Baffles are installed on both sides of the long sides of the feed plate (5) and the discharge plate (6); the base (7) is slidably arranged on the feed plate (5) or the discharge plate (6), and the outer wall of the base (7) is slidably connected to the inner side surface of the adjacent baffle.

4. A steering gear rack pressing block riveting device according to claim 1, characterized in that: A first slide groove (16) with a top opening is provided on an inner wall of one side of the riveting die (1) close to the discharge plate (6); the limiting plate (131) is slidably arranged in the first slide groove (16); a second slide groove (17) is provided in the riveting die (1); the first slide groove (16) is connected to the cavity (15) through the second slide groove (17); and the lifting plate (132) is slidably arranged in the second slide groove (17).

5. A steering gear rack pressing block riveting device according to claim 4, characterized in that: The limiting plate (131) is an arc-shaped plate with a center angle of 20° to 180°, and the cross section of the first sliding groove (16) is arc-shaped and matches the limiting plate (131).

6. A riveting method using the steering rack pressing block riveting device according to any one of claims 1 to 5, characterized in that: The specific steps are as follows: S1: Pushing the base (7) to be riveted on the feed plate (5) to the upper opening of the riveting die (1) by means of a pushing device, so that the base (7) is supported by the support member (4); S2 drives the base (7) to gradually move downward into the inner cavity of the riveting die (1) through the support member (4), so that the bottom end of the base (7) contacts the top end of the lower punch (3), and at the same time, the upper punch (2) is moved downward and inserted into the riveting die (1), so that the bottom end of the upper punch (2) contacts the gasket (18), and the base (7) and the gasket (18) are riveted and assembled by pressing down the upper punch (2) and pushing up the lower punch (3), so that the shaping is completed at the same time; S3 After the assembly is completed, the upper punch (2) and the support member (4) are successively moved upward and reset, so that the lower end surface of the assembled base (7) is flush with the upper end surface of the riveting die (1), and then the assembled base (7) is pushed to the discharge plate (6) by a pushing device for discharge; S4 Repeat the above steps S1-S3 to achieve continuous riveting.

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