Steering gear rack pressing block riveting device and riveting method

Abstract

The steering gear rack pressing block riveting device comprises a riveting die, an upper punch and a lower punch, the upper punch is arranged above an opening of the riveting die, the lower punch is movably arranged in the riveting die and can move up and down, a base is placed in the opening in the upper end of the riveting die, and the upper end of the base is connected with the upper end of the riveting die. The upper punch is used for downwards moving and pressing the gasket on the top of the base, and the lower punch is used for upwards jacking and pressing the bottom of the base. The invention belongs to the technical field of riveting equipment, a base is driven by a supporting piece to move downwards into a riveting die, so that the bottom end of the base is clamped and matched with the top end of a lower punch, an upper punch is in contact with the top end of the base and a gasket after moving downwards, and the upper punch is pressed downwards continuously along with continuous pressing of the upper punch and continuous jacking of the lower punch; therefore, the base and the liner are riveted and assembled in the riveting die, shaping operation is completed at the same time, the actual riveting effect is improved, the product precision of the rack pressing block is improved, and production benefits of enterprises are facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of riveting equipment, and in particular to a riveting device and a riveting method for a steering gear rack pressure block. Background Art

[0002] In the steering gear of a car, the rack pressure block is a widely used key component, which is used to pre-tighten the rack. The clearance between the pressure block and the rack is controlled by adjusting the nut, thereby adjusting the axial movement force of the steering gear rack.

[0003] like Figure 5 As shown, the rack pressing blocks in the prior art are mostly composed of a base 7 and a gasket 18. The base 7 is cylindrical and has a groove on the upper end of the cylinder, while the gasket 18 is a wear-resistant gasket. The gasket 18 needs to be pre-installed on the top of the base 7 and then the two are riveted together by riveting equipment. However, most of the current riveting equipment is of traditional structural design, and only relies on the interference fit of the interference fit to complete the riveting assembly. The pressure during assembly is small, and the gasket 18 and the base 7 are difficult to complete the shaping during the assembly process, resulting in poor accuracy of the rack pressing block after assembly, which is not conducive to the production efficiency of the enterprise. Summary of the invention

[0004] To this end, the present invention provides a steering gear rack pressure block riveting device and a riveting method to solve the above-mentioned problems in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solutions: A steering gear rack block riveting device comprises: a riveting die, an upper punch and a lower punch, wherein 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, a base is placed in the upper end opening of the riveting die, a liner on the top of the base is moved downward and pressed by the upper punch, and a bottom of the base is pressed upward and pressed by the lower punch; A support member, wherein the support member is slidably mounted in the riveting die and is slidably connected to the outer wall of the lower punch, wherein 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, and the support member can move up and down, and the base carried on the support member is driven by the support member to move down into the riveting die for riveting assembly; A feed plate, the feed plate 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, and the base on the upper end surface of the feed plate is pushed to the opening of the riveting die by a pushing device for riveting; A discharge plate, which is installed on 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, and the base after the riveting assembly is ejected is pushed out from the discharge plate by a pushing device; The pushing device is a cylinder, an electric push rod or a motor screw combination structure in the prior art.

[0006] As a further optimized solution of the present invention, the device also includes a first ejection device, a fixed plate is installed at the lower end opening of the riveting die, a first ejector rod is installed at the bottom of the lower punch, and the bottom end of the first ejector rod slides through the fixed plate and extends downward and is connected to the movable end of the first ejection device.

[0007] As a further optimized solution of the present invention, the device also includes a second ejection device, a movable plate is provided 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 fixed plate 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 ejection device through a second ejector rod.

[0008] 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 with each other.

[0009] As a further optimized solution of the present invention, baffles are installed on both sides of the long sides of the feed plate and the discharge plate, the base is slidably arranged on the feed plate or the discharge plate, and the outer wall of the base is slidably connected to the inner side surface of the adjacent baffle.

[0010] As a further optimized solution of the present invention, a limiting assembly is provided on the side of the riveting die away from the feed plate, and the limiting assembly includes a limiting plate, which is slidably provided on the inner wall of the side of the riveting die away from the feed plate and has an adjustable height. The limiting plate is moved up and is higher than the upper end surface of the riveting die to block the advancement of the base to be riveted.

[0011] As a further optimized solution of the present invention, the discharge plate has a cavity inside one end close to the riveting die, and the limit assembly also includes a lifting plate and a micro lift. The micro lift is installed in the cavity, and one end of the lifting plate is on the movable end of the cavity, and the other end of the lifting plate penetrates and extends into the riveting die and is fixedly connected to the bottom end of the limit plate. The height of the limit plate is adjusted by driving the lifting plate up and down by the micro lift.

[0012] As a further optimized solution of the present invention, a first slide groove with a top opening is provided on the inner wall of one side of the riveting die close to the discharge plate, the limiting plate is slidably set in the first slide groove, a second slide groove is provided in the riveting die, the first slide groove is connected with the cavity through the second slide groove, and the lifting plate is slidably set in the second slide groove.

[0013] As a further optimized solution of the present invention, the limit plate is an arc-shaped plate with a center angle of 20°~180°, and the cross-section of the first sliding groove is arc-shaped and matched with the limit plate.

[0014] As a further optimized solution of the present invention, the device also includes a mold base, which is fixedly mounted on the bottom outer wall 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 step shape, and the feed plate and the discharge plate are respectively installed on both sides of the step, and the movable plate is slidably arranged at the bottom of the inner cavity of the mold base. A small hole adapted to the first ejector rod and the second ejector rod is opened at the bottom of the mold base, and the first ejector rod and the second ejector rod slide through the small hole to facilitate lifting and lowering adjustment and ejection operations.

[0015] A riveting method using the above-mentioned steering gear rack pressing block riveting device, the specific steps are as follows: S1 pushes the base to be riveted on the feed plate to the upper opening of the riveting die through a pushing device, so that the base is supported by the support member; S2 drives the base to gradually move down into the inner cavity of the riveting die through the support, so that the bottom end of the base contacts the top end of the lower punch, and at the same time, the upper punch moves down and is inserted into the riveting die, so that the bottom end of the upper punch contacts the liner, and the base and the liner are riveted and assembled by pressing down the upper punch and pushing up the lower punch, so that the shaping is completed at the same time; S3 After the assembly is completed, the upper punch and the support are successively moved up and reset, so that the lower end surface of the assembled base is flush with the upper end surface of the riveting die, and then the assembled base is pushed to the discharge plate for discharge by the pushing device; S4 Repeat the above steps S1-S3 to achieve continuous riveting.

[0016] The present invention has the following advantages: (i) By installing a feed plate and a discharge plate on both sides of the riveting die, the pushing device can push the base to be riveted to the riveting station, and it is also convenient to push the base out after the riveting is ejected; (ii) Through the liftable design of the support, the support can drive the base on it to move down to the inside of the riveting die. On the one hand, the bottom end of the base is engaged with the top end of the lower punch. On the other hand, the upper punch contacts the top end of the base and the gasket after moving down. With the continuous downward pressure of the upper punch and the continuous upward pressure of the lower punch, the base and the gasket are riveted and assembled in the riveting die, and the shaping operation is completed at the same time, which is beneficial to improve the actual riveting effect, thereby improving the product precision of the rack block and benefiting the production efficiency of the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a first state of a steering gear rack pressing block riveting device provided by the present invention; Figure 2 A schematic diagram of the second state structure of a steering rack pressing block riveting device provided by the present invention; Figure 3 A schematic diagram of the structure of a limit assembly of a steering rack pressing block riveting device provided by the present invention; Figure 4 A schematic diagram of a top view of a riveting die of a steering rack pressing block riveting device provided by the present invention; Figure 5 It is a structural schematic diagram of the pre-installed pressing block in the prior art of the present invention.

[0018] In the figure: 1. riveting die; 2. upper punch; 3. lower punch; 4. support member; 5. feed plate; 6. discharge plate; 7. base; 8. fixed plate; 9. first ejector pin; 10. movable plate; 11. connecting rod; 12. second ejector pin; 13. limit assembly; 131. limit plate; 132. lifting plate; 133. mini lifter; 14. die seat; 15. cavity; 16. first slide slot; 17. second slide slot; 18. pad. DETAILED DESCRIPTION

[0019] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are 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 creative work are within the scope of protection of the present invention.

[0020] like Figure 1 and Figure 2 As shown, a steering gear rack pressing block riveting device comprises: 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, the lower punch 3 is movably arranged in the riveting die 1 and can move up and down, and the base 7 is placed in the upper end 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; 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 carried on it is driven by the support member 4 to move down to 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 outer shape of the base 7, so that during the riveting process, the base 7 can be better stressed, so that the shaping operation can be performed while the riveting is completed, which is conducive to improving the actual riveting accuracy; Feed plate 5, feed plate 5 is installed on the top of one side of the riveting die 1, and the upper end surface of feed plate 5 is flush with the upper end surface of riveting die 1, and the base 7 of the upper end surface of feed plate 5 is pushed to the opening of riveting die 1 by pushing equipment for riveting; The discharge plate 6 is installed on the top of the other side of the riveting die 1, and the upper end surface of the discharge plate 6 is flush with the upper end surface of the riveting die 1. The base 7 after the riveting assembly is ejected is pushed out from the discharge plate 6 by a pushing device; The pushing device is a cylinder, an electric push rod or a motor screw combination structure in the prior art, and preferably an electric push rod here, which has two pushing strokes. In the first pushing stroke, the electric push rod pushes the base 7 to be riveted on the feed plate 5 to the support 4, and in the second pushing stroke, the electric push rod pushes the assembled base 7 to the discharge plate 6. It should be noted that there is a feed port between the feed plate 5 and the movable end of the electric push rod, and the feed port is connected to the feeding equipment. The feeding equipment can be a transfer equipment such as a manipulator or a vibration plate. The discharge port of the discharge plate 6 is connected to the transmission equipment, which is used to transmit the base 7 after riveting and assembly to the next process.

[0021] Specifically, Figure 1 and Figure 2 As shown, the device also includes a first ejection device (not shown in the figure), a fixed plate 8 is installed at the lower end opening of the riveting die 1, and a first ejector 9 is installed at the bottom of the lower punch 3. The bottom end of the first ejector 9 slides through the fixed plate 8 and extends downward and is connected to the movable end of the first ejection device. The first ejector 9 is driven by the first ejection device to move up and down, thereby adjusting the height of the lower punch 3, so as to press the base 7 in the riveting die 1 upward, and at the same time, the base 7 after riveting assembly can be ejected in combination with the upward movement of the support member 4; Furthermore, the device also includes a second ejection 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 slides through the fixed 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 ejection device through a second ejector rod 12, the second ejector rod 12 is driven downward by the second ejector device, so that 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, and the second ejector rod 12 is driven upward by the second ejector device, so that the movable plate 10 drives the connecting rod 11 and the support member 4 to move upward synchronously, so as to eject the base 7 after riveting assembly to the initial position, which is convenient for the discharge operation of the base 7 after riveting; It should be noted that the first ejection device and the second ejection device are both existing longitudinal pushing devices, such as a pneumatic cylinder, an oil cylinder, an electric push rod, and the like.

[0022] 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 with each other. The outer diameter of the support member 4 is consistent with the outer diameter of the base 7. When the pushing device pushes the base 7 to the top of the opening of the riveting die 1, the bottom end of the base 7 coincides with the upper end surface of the support member 4, so that the support member 4 drives the base 7 to move down into the riveting die 1, thereby facilitating subsequent riveting and shaping operations, and also facilitating ejection after assembly.

[0023] Specifically, Figure 4 As shown, 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 set 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, which can improve the pushing stability of the base 7.

[0024] Specifically, Figure 1-Figure 3 As shown, a limiting assembly 13 is provided on one side of the riveting die 1 away from the feed plate 5. The limiting assembly 13 includes a limiting plate 131. The limiting plate 131 is slidably provided on the inner wall of the side of the riveting die 1 away from the feed plate 5 and is height-adjustable. The limiting plate 131 moves upward and is higher than the upper end surface of the riveting die 1 to block the advancement of the base 7 to be riveted, so as to facilitate the overlap of the lower end surface of the base 7 with the upper end surface of the support member 4, so as to facilitate the downward riveting and ejection operations of the base 7. Furthermore, if Figure 3 As shown, the discharge plate 6 has a cavity 15 inside one end close to the riveting die 1, and the limiting assembly 13 also includes a lifting plate 132 and a micro lift 133. The micro lift 133 is installed in the cavity 15, and one end of the lifting plate 132 is on the movable end of the cavity 15, 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 limiting plate 131. The lifting plate 132 is driven up and down by the micro lift 133 to adjust the height of the limiting plate 131. The lifting plate 132 is driven up by the micro lift 133 to make the limiting plate 131 move up and protrude above the riveting die 1, so as to block the base 7 when the feed is pushed, so that the base 7 is at the riveting station, which is conducive to improving the actual processing accuracy. The lifting plate 132 is driven down by the micro lift 133 to make the limiting plate 131 move down into the riveting die 1, so that the pushing device pushes the base 7 ejected after assembly to the discharge plate 6, which is convenient for the actual unloading operation. The micro lift can be a micro electric push rod or a motor screw combination structure in the prior art; Furthermore, a first chute 16 with a top opening is provided 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 provided in the riveting die 1, the first chute 16 is connected to the cavity 15 through the second chute 17, and the lifting plate 132 is slidably arranged in the second chute 17, which is conducive to improving the lifting stability of the limiting plate 131 and the lifting plate 132; Furthermore, the limiting plate 131 is an arc-shaped plate with a center angle of 20° to 180°, and the cross section of the first chute 16 is an arc-shaped plate and is adapted to the limiting plate 131. Figure 4 As shown, the center angle of the limiting plate 131 is 20°, so as to block and protect the side of the upper opening of the riveting die 1 close to the discharge plate 6, so as to prevent the base 7 to be riveted from being pushed and offset and affecting the normal process; Furthermore, evenly distributed balls are installed on one side of the limit plate 131 close to the inner wall of the first slide groove 16 and on the surface of the lifting plate 132 close to the side wall of the second slide groove 17. The setting of the balls can reduce the friction between each other, thereby improving the lifting and lowering stability of the limit plate 131 and also improving the actual service life.

[0025] The device also includes a mold base 14, which is fixedly mounted on the outer wall of the bottom end of the riveting mold 1, and the upper end surface of the mold base 14 is lower than the upper end surface of the riveting mold 1 to form a step shape, and the feed plate 5 and the discharge plate 6 are respectively installed on both sides of the step. The movable plate 10 is slidably set at the bottom of the inner cavity of the mold base 14. The bottom of the mold base 14 is provided with a small hole adapted to the first ejector rod 9 and the second ejector rod 12. The first ejector rod 9 and the second ejector rod 12 slide through the small hole to facilitate lifting and lowering adjustment and ejection operations, which is beneficial to improving the stability of actual lifting and ejection.

[0026] A riveting method using the above-mentioned steering gear rack pressing block riveting device, the specific steps are as follows: S1 Push the base 7 to be riveted on the feed plate 5 to the upper opening of the riveting die 1 by a pushing device, so that the base 7 is supported by the support 4; S2 The base 7 is driven by the support 4 to gradually move downward into the inner cavity of the riveting die 1, 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 the upper punch 2 downward and pushing the lower punch 3 upward, 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 the pushing device for discharge; S4 Repeat the above steps S1-S3 to achieve continuous riveting.

[0027] It should be noted that the symmetry and parallelism accuracy of the rack pressing block assembled by traditional interference fitting can only reach 0.15mm, the release force of the gasket is small, only 200N, and the adhesion between the gasket and the base after assembly is poor, only 0.1mm. The symmetry and parallelism accuracy of the rack pressing block assembled by the above-mentioned riveting device and riveting method can reach 0.05mm, the release force of the gasket can reach 400N, and the adhesion between the gasket and the base after assembly can reach 0.03mm. The accuracy is about 3 times higher than that of the interference fitting method, which can significantly improve the actual product quality and production efficiency.

[0028] In summary, by installing the feed plate 5 and the discharge plate 6 on both sides of the riveting die 1 respectively, the pushing equipment can push the base 7 to be riveted to the riveting station, and it is also convenient to push the base 7 out after the riveting; through the liftable design of the support member 4, the support member 4 can drive the base 7 thereon to move down to the inside of the riveting die 1. On the one hand, the bottom end of the base 7 is engaged with the top end of the lower punch 3. On the other hand, after the upper punch 2 moves down, it contacts with the top end of the base 7 and the gasket 18. With the continuous downward pressure of the upper punch 2 and the continuous upward pressure of the lower punch 3, the base 7 and the gasket 18 are riveted and assembled in the riveting die 1, and the shaping operation is completed at the same time, which is beneficial to improving the actual riveting effect, thereby improving the product precision of the rack pressing block, and benefiting 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) is installed on the top of the other side of the riveting die (1), and the upper end surface of the discharge plate (6) is flush with the upper end surface of the riveting die (1). The base (7) after the riveting assembly is ejected is pushed out from the discharge plate (6) by a pushing device.

2. A steering gear rack pressing block riveting device according to claim 1, characterized in that: It also includes a first ejection device, a fixed plate (8) is installed at the lower opening of the riveting die (1), a first ejector rod (9) is installed at the bottom of the lower punch (3), and 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.

3. A steering gear rack pressing block riveting device according to claim 2, characterized in that: It also includes 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).

4. 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.

5. The 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.

6. A steering gear rack pressing block riveting device according to claim 1, characterized in that: A limiting assembly (13) is provided on a side of the riveting die (1) away from the feed plate (5), and the limiting assembly (13) comprises a limiting plate (131). The limiting plate (131) is slidably provided on an inner wall of the side of the riveting die (1) away from the feed plate (5) and is height-adjustable. The limiting plate (131) moves 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.

7. A steering gear rack pressing block riveting device according to claim 6, characterized in that: The discharge plate (6) has a cavity (15) inside one end close to the riveting die (1), and the limiting assembly (13) further comprises a lifting plate (132) and a micro lift (133). The micro lift (133) is installed in the cavity (15), and one end of the lifting plate (132) is connected to the movable end of the cavity (15). 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 micro lift (133) drives the lifting plate (132) to rise and fall, thereby adjusting the height of the limiting plate (131).

8. A steering gear rack pressing block riveting device according to claim 7, 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).

9. A steering gear rack pressing block riveting device according to claim 8, 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).

10. A riveting method using the steering rack pressing block riveting device according to any one of claims 1 to 9, 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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