CN216027868U - Pressure riveting tool - Google Patents

Abstract

The utility model discloses a pressure riveting tool, which comprises: the base component is used for being connected with a lower die holder of the machine tool; the floating assembly comprises a floating part and a rod part, the floating part is movably sleeved on the outer surface of the upper end of the rod part and is used for placing a gasket, the top end of the rod part is used for turning and riveting the turning and riveting part of the rivet, and the bottom end of the rod part is connected with the base assembly; the upper press riveting head is connected with the upper die base of the machine tool and used for applying axial pressure to the head of the rivet; the gasket is sleeved at the upper end of the rivet turning part; after the rivet is pressed, the lower end of the rivet turning part is turned and riveted to limit the gasket. The utility model provides a riveting tool for floating panel screws, which overcomes the defect that the products are lacking in the market.

Description

Pressure riveting tool

Technical Field

The utility model relates to the field of sheet metal machining, in particular to a press riveting tool.

Background

Floating panel screws are common fasteners, and because of their floating feature in the axial direction, they compensate the position between the connecting member and the connected member, and are widely used in the processing of plate structures.

Patent document CN202021583994.1 discloses the structure of such a screw: the telescopic floating sleeve comprises a screw head and a stud, wherein the screw head is fixedly arranged in an accommodating cavity of the outer sleeve, one end of the stud with threads protrudes out of the outer sleeve, one end of the telescopic floating sleeve is arranged in the accommodating cavity of the outer sleeve, and the other end of the telescopic floating sleeve extends outwards and protrudes out of the outer sleeve; the one end of flexible floating sleeve protrusion in the holding chamber is equipped with the step portion, and the setting of step portion is convenient for press flexible floating sleeve, convenient and practical.

Generally, in order to make the floating panel screw not easy to fall off from the connected piece, one end of the telescopic floating sleeve far away from the outer sleeve needs to be turned over and riveted, so that the end structure deforms and expands outwards, and the diameter of the end structure is larger than the diameter of a connecting hole of the connected piece, and the purpose that the floating panel screw is connected with the connected piece more firmly is achieved; furthermore, in order to protect the surface of the connected piece from being scratched by the floating panel screw, the cushion ring is sleeved on the outer surface of one end of the telescopic floating sleeve, which is far away from the outer sleeve; however, the present market lacks a rivet pressing tool for such floating panel screws.

In the present application, as shown in fig. 1, the floating panel screw is abbreviated as a rivet 17, one end of the telescopic floating sleeve away from the outer sleeve is a rivet turning part 171, the screw head is a head part 172, the rivet turning part 171 is sleeved with the gasket 11, and the stepped part is a stepped surface 173.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects of the prior art, the utility model provides a press riveting tool for floating panel screws.

The utility model is realized by the following technical scheme:

the utility model provides a pressure riveting frock, includes:

the base component is used for being connected with a lower die holder of the machine tool;

the floating assembly comprises a floating part and a rod part, the floating part is movably sleeved on the outer surface of the upper end of the rod part and is used for placing a gasket, the top end of the rod part is used for turning and riveting the turning and riveting part of the rivet, and the bottom end of the rod part is connected with the base assembly;

the upper press riveting head is connected with the upper die base of the machine tool and used for applying axial pressure to the head of the rivet;

the gasket is sleeved at the upper end of the rivet turning part; after the rivet is pressed, the lower end of the rivet turning part is turned and riveted to limit the gasket.

Furthermore, the rod part is a main connecting rod, the upper end of the main connecting rod is a narrowing part, an annular groove is formed in the top end of the narrowing part, the annular groove is used for turning over the lower end of the turning riveting part and enabling the turning riveting part to be in a plastic shape.

Furthermore, the floating part is a floating sleeve which is movably sleeved on the outer surface of the narrowing part; the top end of the floating sleeve is provided with an annular concave platform for placing a gasket, and the center of the annular concave platform is on the axis of the through hole.

Furthermore, the main connecting rod is also provided with a convex edge, the reset pressure spring is sleeved on the main connecting rod, one end of the reset pressure spring is abutted against the convex edge, and the other end of the reset pressure spring is abutted against the floating sleeve.

Furthermore, a step is formed at the bottom end of the narrowing part, and a first limit distance is formed between the upper end surface of the step and the lower end surface of the floating sleeve; the narrowing part is also provided with a round hole, the floating sleeve is provided with a strip hole, the length direction of the strip hole is consistent with the axial direction of the floating sleeve, and the pin penetrates through the round hole and the strip hole.

Further, the base assembly comprises a connecting seat and a main base, wherein the connecting seat is arranged between the lower die base and the main base of the machine tool and is respectively detachably connected with the lower die base and the main base of the machine tool; the base component forms a step hole which consists of a fixing hole of the connecting base and a mounting hole of the main base, the part of the main connecting rod below the convex edge is arranged in the fixing hole, and the rest part of the main connecting rod, the floating sleeve and the reset pressure spring are all arranged in the mounting hole of the main base.

Furthermore, a containing groove is formed on the periphery of the upper end of the mounting hole, and one end part of the mounting hole is formed in the containing groove.

Furthermore, the fixing device also comprises a fixing component, wherein the fixing component is detachably connected to the base component and is used for fixing the head of the rivet and the connected piece.

Furthermore, the fixing assembly comprises a cover plate and a plurality of fixing pins, and the cover plate is provided with a plurality of pin holes; the main base is provided with a plurality of first blind holes, and the fixing pins penetrate through the pin holes and are inserted into the first blind holes; the plate body of the cover plate is used for extruding the connected piece, and the cover plate is also provided with a containing hole which is used for fixing the head of the rivet.

Furthermore, the device also comprises a limiting component, wherein the limiting component is arranged on the base component; the limiting assembly is a positioning pin, a second blind hole is further formed in the main base, and the positioning pin is inserted into the second blind hole.

Compared with the prior art, the utility model has the advantages that:

1. the utility model provides a riveting tool for floating panel screws, which overcomes the defect that the products are lacking in the market. Specifically, the press riveting tool is connected with a lower die base of a machine tool through a base assembly, and an upper press riveting head is connected with an upper die base of the machine tool and used for applying axial pressure to a rivet; the floating assembly is positioned between the base assembly and the upper riveting head, and the floating part of the floating assembly is used for placing the gasket and can drive the gasket to move downwards, so that the gasket cannot be damaged by the extrusion of the upper riveting head in the riveting process, and the gasket is effectively protected; the rod part of the floating assembly is used for supporting the rivet and turning over the rivet turning part of the rivet, and the floating part is movably sleeved on the outer surface of the upper end of the rod part, so that the purpose that the gasket is movably sleeved on the outer surface of the rivet turning part is realized; after the rivet turning is completed, the cushion ring is sleeved on the deformed rivet turning part, the edge of the deformed rivet turning part bends and deforms towards the direction of the cushion ring and forms vertical downward limit on the cushion ring, and the cushion ring is prevented from being separated from the rivet turning part.

2. The floating sleeve is provided with an annular concave table for placing the gasket, the gasket is limited by an annular concave table wall body in the radial direction in the pressing and riveting process, the stepped surface of the rivet extrudes the upper surface of the gasket, and the gasket is firmly installed on the annular concave table and is not easy to fall off from the floating sleeve.

3. The upper end of the main connecting rod is a narrowing part, the top end of the narrowing part is provided with an annular groove, the groove wall of the annular groove can provide upward supporting force for the lower end of the turning riveting part, when the pressing riveting is carried out, the turning riveting part is simultaneously extruded by an upper pressing riveting head and the groove wall of the annular groove, the lower end of the turning riveting part enters the annular groove to be shaped, specifically, the lower end of the turning riveting part gradually deforms along the shape of the annular groove, and the lower end of the turning riveting part is limited and formed by the groove wall of the annular groove.

4. A step is formed at the bottom end of the narrowing part, a first limiting distance is formed between the upper end surface of the step and the lower end surface of the floating sleeve, namely the maximum distance which can be moved downwards after the upper squeeze rivet head is contacted with the floating sleeve is the first limiting distance; the common rivet turning tool which can not control the rivet turning degree and can not limit the running distance of the upper pressing rivet head in the market at present is replaced; according to the scheme, the upper end face of the step and the lower end face of the floating sleeve limit the running distance of the upper riveting head, the situation that the downward moving distance of the upper riveting head is too large, the lower end of the overturning riveting portion is excessive in overturning riveting deformation, the thickness of the overturning riveting portion is too thin after deformation, and the connection strength is too low is effectively avoided, the overturning riveting degree is effectively controlled, the situation that the overturning riveting is excessive is reduced, and the qualification rate of the product technology is improved.

5. The narrowing part is provided with a round hole, the floating sleeve is provided with a strip hole, and the pin penetrates through the round hole and the strip hole at the same time, so that the maximum distance of the upward movement of the floating sleeve is limited, and the floating sleeve is prevented from falling off from the upper end of the main connecting rod under the action of the elastic force of the reset pressure spring.

6. The periphery of the upper end of the mounting hole forms a containing groove which is used for clamping and fixing a small-sized connected piece or used for mounting a convex folded edge on a large connected piece.

7. The fixing assembly comprises a cover plate and a plurality of fixing pins, the cover plate is sleeved on the outer surface of the rivet head, and the fixing pins penetrate through pin holes of the cover plate and are inserted into first blind holes of the main base, so that the cover plate and the main base are relatively fixed; on the one hand, the holding hole of apron is at the fixed rivet head in footpath, prevents that the rivet from pressing the in-process skew of riveting, avoids producing to turn over and rivets the effect not good, turn over the inhomogeneous condition of riveting the shape, and on the other hand, on the pressure riveting direction, the plate body of apron compresses tightly places in the storage tank by the connecting piece for in the pressure riveting in-process, by the connecting piece fixed more firm on the pressure riveting frock.

8. This application still includes spacing subassembly, and spacing subassembly is the locating pin, and the locating pin is worn to establish and is inserted by the connecting piece and insert in the second blind hole of main base for by connecting piece and main base relatively fixed, avoided riveting the in-process and rocked by the connecting piece turning over, and then the influence turns over the process of riveting, perhaps is pressed the condition emergence of riveting head extrusion fish tail by the connecting piece on.

Drawings

FIG. 1 is a schematic structural view of a rivet of the prior art;

FIG. 2 is an exploded view of the rivet pressing tool;

FIG. 3 is an enlarged view of the floating sleeve;

FIG. 4 is a schematic cross-sectional view of a clinch tool;

FIG. 5 is an enlarged view of the structure of the coil portion of FIG. 4;

FIG. 6 is a schematic view of the assembly of the fastening assembly to the rivet;

FIG. 7 is a schematic view of the clinch tool in use;

FIG. 8 is a schematic view of the lower end of the clinch portion being undeformed;

FIG. 9 is a schematic view showing the lower end of the clinch portion preliminarily deformed;

fig. 10 is a schematic view of the lower end of the clinch portion after completion of deformation.

1-connecting seat, 101-fixing hole, 2-main base, 201-mounting hole, first blind hole 202, second blind hole 203, 204-accommodating groove, 3-main connecting rod, 301-convex edge, 302-narrowing part, 303-step, 304-annular groove, 4-pin, 5-reset pressure spring, 6-positioning pin, 7-cover plate, pin hole 701, accommodating hole 702, 9-upper pressure rivet head, 10-fixing pin, 11-gasket, 12-floating sleeve, 121-through hole, 122-strip hole, 123-annular concave table, 14-base assembly, 15-limiting assembly, 17-rivet, 171-rivet-turning part, 172-head, 173-step surface and 18-folded edge.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings. In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the utility model and are not to be construed as limiting the utility model.

As shown in fig. 2, a rivet pressing tool according to a preferred embodiment of the present invention includes: the base assembly 14, the base assembly 14 is used for connecting with the lower die holder of the machine tool; the floating assembly comprises a floating part and a rod part, the floating part is movably sleeved on the outer surface of the upper end of the rod part and is used for placing the gasket 11, the top end of the rod part is used for turning over the rivet turning part 171 of the rivet 17, and the bottom end of the rod part is connected with the base assembly 14; the upper pressing rivet head 9 is connected with the upper die base of the machine tool, and the upper pressing rivet head 9 is used for applying axial pressure to the head 172 of the rivet 17; the washer 11 is sleeved on the upper end of the rivet turning part 171; after the rivet 17 is pressed, the lower end of the rivet overturning part 171 is overturned to rivet, and limit is formed on the gasket 11.

With further reference to fig. 2 to 4, the rod portion is a main connecting rod 3, the upper end of the main connecting rod 3 is a narrowed portion 302, an annular groove 304 is formed in the top end of the narrowed portion 302, the center of the annular groove 304 is located on the axis of the narrowed portion 302, the groove wall of the annular groove 304 is bent towards the direction in which the gasket 11 is arranged, the annular groove 304 is used for performing rivet turning on the lower end of the rivet turning portion 171, and the rivet turning shape of the rivet turning portion 171 is shaped; the floating part is a floating sleeve 12, and the floating sleeve 12 is movably sleeved on the outer surface of the narrowing part 302; the top end of the floating sleeve 12 is formed with an annular recess 123 for placing the gasket 11, the center of the annular recess 123 being on the axis of the through-hole 121; the main connecting rod 3 is further provided with a convex edge 301, the reset pressure spring 5 is sleeved on the main connecting rod 3, one end of the reset pressure spring 5 is abutted to the convex edge 301, and the other end of the reset pressure spring is abutted to the floating sleeve 12.

Specifically, the floating sleeve 12 is a cylindrical structure; the reset pressure spring 5 is a spiral spring, the reset pressure spring 5 is sleeved on the main connecting rod 3, and the axis of the reset pressure spring 5 is superposed with the axis of the main connecting rod 3; the convex edge 301 is a circular convex edge, is integrally formed with the main link 3, and is located at the middle lower part of the main link 3.

With further reference to fig. 4 to 6, a step 303 is formed at the bottom end of the narrowing portion 302, and a first limit distance is formed between the upper end surface of the step 303 and the lower end surface of the floating sleeve 12, and is defined according to the specific structure of the rivet or the specific degree of press riveting, in this embodiment, the first limit distance is 2 mm; the narrowing portion 302 is further provided with a round hole, the floating sleeve 12 is provided with a strip hole 122, the length direction of the strip hole 122 is consistent with the axial direction of the floating sleeve 12, and the pin 4 penetrates through the strip hole 122 and the round hole at the same time.

Specifically, the upper end surface of the step 303 forms a limit for the position of the floating sleeve 12 excessively downward; the engagement of the pin 4 and the slot 122 provides a stop for the floating sleeve 12 to be moved excessively upward, preventing the floating sleeve 12 from moving excessively upward and thus disengaging the narrowing 302.

With further reference to fig. 4, the base assembly 14 includes a connecting seat 1 and a main base 2, the connecting seat 1 is disposed between the lower die base and the main base 2 of the machine tool, and is detachably connected to the lower die base and the main base 2 of the machine tool respectively; the base assembly 14 forms a stepped hole, which is composed of a fixing hole 101 of the connecting base 1 and a mounting hole 201 of the main base 2, the part of the main connecting rod 3 below the convex edge 301 is arranged in the fixing hole 101, and the rest part of the main connecting rod 3, the floating sleeve 12 and the reset pressure spring 5 are all arranged in the mounting hole 201 of the main base 2.

Specifically, the connecting seat 1 can be connected with a lower die seat and a main base 2 of a machine tool through screws or bolts; the fixing hole 101 is a cylindrical hole, the diameter of the fixing hole 101 is smaller than that of the mounting hole 201, and a supporting surface is formed at the joint of the fixing hole 101 and the mounting hole 201 due to the difference of the hole diameters and is used for supporting the convex edge 301; the mounting hole 201 is also a cylindrical hole, and the diameter of the mounting hole 201 is equal to or slightly smaller than the outer diameter of the convex edge 301 and is larger than the diameter of the outer ring of the reset pressure spring 5.

In other alternative embodiments, the base assembly 14 may be a one-piece structure, and the interior of the one-piece structure is provided with a step hole, the main link 3 is installed in the step hole, and the bottom end of the convex edge 301 of the main link 3 abuts against the upper surface of the step hole.

Referring to fig. 2, a receiving groove 204 is formed around the upper end of the mounting hole 201, an end of the mounting hole 201 is formed in the receiving groove (204), the receiving groove 204 is communicated with the mounting hole 201, and the receiving groove 204 is used for clamping and fixing a connected component with a small volume.

With further reference to fig. 4-6, a fixing assembly is included, which is removably attached to the base assembly 14, and is used to fix the head 172 of the rivet 17 and the connected member.

Specifically, the fixing assembly comprises a cover plate 7 and a plurality of fixing pins 10, and a plurality of pin holes 701 are formed in the cover plate 7; the main base 2 is provided with a plurality of first blind holes 202, and the fixing pins 10 are inserted into the first blind holes 202 through the pin holes 701; the cover plate 7 is also provided with a containing hole 702, and the containing hole 702 is used for fixing the head 172 of the rivet 17; on the one hand, the outer surface of the head 172 is sleeved with the accommodating hole 702, so that the head 172 is fixed in the radial direction, the problem that the riveting shape is uneven due to the fact that the head 172 radially shakes along the head 172 in the riveting process is avoided, and on the other hand, in the riveting direction, the plate body of the cover plate 7 is tightly pressed on the connected piece placed in the accommodating groove 204, so that in the riveting process, the connected piece is fixed on the riveting tool more firmly.

Furthermore, the device also comprises a limiting component, and the limiting component is arranged on the base component 14; specifically, the limiting assembly is a positioning pin 6, a second blind hole 203 is further formed in the main base 2, and the positioning pin 6 is inserted into the second blind hole 203.

The press riveting tool in the scheme can be used for press riveting of various sheet metal parts, and the use process of the press riveting tool is demonstrated by taking a case door plate with a folded edge as an example of a connected part of the sheet metal part; specifically, the folded edge 18 includes 2 lug structures, wherein one lug is provided with a riveting hole, and the other lug is provided with a positioning hole.

When the quick-witted case door plant that is equipped with the hem needs to be pressed and rivets, the lateral wall of door plant can interfere with the pressure riveting instrument, consequently, in order to accomplish and press and rivet on the quick-witted case door that is equipped with the hem, can only adopt the pressure riveting frock clamp crimping rivet on the quick-witted case door plant that is not bent earlier, press and rivet the completion back, bend the border of quick-witted case door plant again, at the in-process of bending in addition, can arouse scotch rivet scheduling problem, very inconvenient.

With further reference to fig. 7-10, the rivet pressing tool of the present application can overcome the above-mentioned drawbacks, when the chassis door plate with the folded edge is pressed and riveted, the pressing and riveting tool is placed on one side of the chassis door plate close to the folded edge 18, the connecting seat 1 and the lower die seat of the machine tool are fixed through screws, the upper pressing and riveting head 9 is arranged on the upper die seat of the machine tool, and the axes of the upper pressing rivet head 9 and the floating sleeve 12 are coincided, the lug with the riveting hole is placed in the containing groove 204, the gasket 11 is placed on the annular concave platform 123, the lower end of the overturning riveting part 171 passes through the riveting hole and the gasket 11 in sequence, and finally, the fixing pin abuts against the groove wall of the annular groove 304, the cover plate 7 is used for being sleeved on the outer surface of the head part 172 and tightly pressing and fixing the lug with the riveting hole, the fixing pin 10 is inserted into the first blind hole 202 through the pin hole 701, fixing the cover plate 7 relative to the main base 2, and inserting the positioning pin 6 into the second blind hole 203 through the positioning hole; starting a riveting machine tool, wherein a die holder on the machine tool drives a rivet pressing head 9 to downwards extrude a rivet 17, a gasket 11 is downwards extruded by a stepped surface 173 of the rivet 17, so that the gasket 11 drives a floating sleeve 12 to downwards move simultaneously, a head 172 is downwards extruded by the rivet pressing head 9, after a spring in the rivet 17 is compressed to the limit, the head 172 transmits vertical downward extrusion force to a rivet turning part 171, the lower end of the rivet turning part 171 is guided and extruded by the groove wall of an annular groove 304, so that the rivet turning part gradually bends and deforms along the groove wall of the annular groove 304, and the lower end edge of the deformed rivet turning part 171 forms an excessive downward limit for the gasket 11; after the riveting is completed, the fixing pin 10 is pulled out from the pin hole 701 and the first blind hole 202, the cover plate 7 is taken down, then, the rest parts except the rivet 17 and the gasket 11 are all taken down, at this time, the diameter of the lower end deformation part of the riveting part 171 is larger than the diameter of the inner ring of the gasket 11, the gasket 11 cannot be taken down from the riveting part 171, and the diameter of the outer ring of the gasket 11 is larger than the diameter of the riveting hole, so that the rivet 17 is installed in the riveting hole through the gasket 11 and cannot be taken out of the riveting hole, and when the standby box door panel is installed with other sheet metal parts, the standby box door panel can be directly connected through the rivet 17 installed in the riveting hole.

The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The utility model provides a rivet pressing tool which characterized in that includes:

the base component (14), the base component (14) is used for connecting with the lower die holder of the machine tool;

the floating assembly comprises a floating part and a rod part, the floating part is movably sleeved on the outer surface of the upper end of the rod part and is used for placing a gasket (11), the top end of the rod part is used for turning and riveting a turning and riveting part (171) of a rivet (17), and the bottom end of the rod part is connected with the base assembly (14);

the upper squeeze riveting head (9), the upper squeeze riveting head (9) is connected with the upper die base of the machine tool, and the upper squeeze riveting head (9) is used for applying axial pressure to the head (172) of the rivet (17);

the gasket (11) is sleeved at the upper end of the rivet turning part (171); after the rivet (17) is pressed, the lower end of the rivet overturning part (171) is overturned and riveted to limit the gasket (11).

2. The rivet pressing tool according to claim 1, characterized in that the rod portion is a main connecting rod (3), the upper end of the main connecting rod (3) is a narrowed portion (302), an annular groove (304) is formed in the top end of the narrowed portion (302), the annular groove (304) is used for performing rivet turning on the lower end of the rivet turning portion (171), and the rivet turning shape of the rivet turning portion (171) is shaped.

3. The rivet pressing tool according to claim 2, characterized in that the floating part is a floating sleeve (12), and the floating sleeve (12) is movably sleeved on the outer surface of the narrowing part (302); the top end of the floating sleeve (12) is provided with an annular concave platform (123) for placing the gasket (11), and the center of the annular concave platform (123) is on the axis of the through hole (121).

4. The rivet pressing tool according to claim 3, wherein the main connecting rod (3) is further provided with a convex edge (301), the reset pressure spring (5) is sleeved on the main connecting rod, one end of the reset pressure spring (5) is abutted to the convex edge (301), and the other end of the reset pressure spring is abutted to the floating sleeve (12).

5. The rivet pressing tool according to claim 4, characterized in that a step (303) is formed at the bottom end of the narrowing portion (302), and a first limit distance is formed between the upper end surface of the step (303) and the lower end surface of the floating sleeve (12); the narrowing portion (302) is also provided with a round hole, the floating sleeve (12) is provided with a strip hole (122), the length direction of the strip hole (122) is consistent with the axial direction of the floating sleeve (12), and the pin (4) penetrates through the round hole and the strip hole (122) simultaneously.

6. The rivet pressing tool according to claim 5, characterized in that the base assembly (14) comprises a connecting seat (1) and a main base (2), wherein the connecting seat (1) is arranged between the lower die holder of the machine tool and the main base (2) and is respectively detachably connected with the lower die holder of the machine tool and the main base (2); the base component (14) forms a step hole and consists of a fixing hole (101) of the connecting base (1) and a mounting hole (201) of the main base (2), the part of the main connecting rod (3) below the convex edge (301) is arranged in the fixing hole (101), and the rest part of the main connecting rod (3), the floating sleeve (12) and the reset pressure spring (5) are arranged in the mounting hole (201) of the main base (2).

7. The rivet pressing tool according to claim 6, wherein a containing groove (204) is formed on the periphery of the upper end of the mounting hole (201), and one end of the mounting hole (201) is formed in the containing groove (204).

8. The rivet pressing tool according to claim 7, further comprising a fixing component, wherein the fixing component is detachably connected to the base component (14), and the fixing component is used for fixing the head (172) of the rivet (17) and the connected piece.

9. The rivet pressing tool according to claim 8, characterized in that the fixing component comprises a cover plate (7) and a plurality of fixing pins (10), the cover plate (7) is provided with a plurality of pin holes (701); the main base (2) is provided with a plurality of first blind holes (202), and the fixing pins (10) penetrate through the pin holes (701) and are inserted into the first blind holes (202); the plate body of the cover plate (7) is used for extruding the connected piece, the cover plate (7) is further provided with a containing hole (702), and the containing hole (702) is used for fixing the head (172) of the rivet (17).

10. The rivet pressing tool according to claim 9, further comprising a limiting assembly, wherein the limiting assembly is arranged on the base assembly (14); the limiting assembly is a positioning pin (6), a second blind hole (203) is further formed in the main base (2), and the positioning pin (6) is inserted into the second blind hole (203).

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