CN215587535U - T type riveting member trimmer - Google Patents

Abstract

The utility model relates to the field of riveting, in particular to a T-shaped riveting piece shaping machine. According to the T-shaped riveting part shaping machine, the movable shaping mechanism, the fixed shaping mechanism and the pressing mechanism are arranged on the base, and the pressing mechanism is used for pushing the movable shaping mechanism, so that the movable shaping mechanism and the fixed shaping mechanism clamp the cap part of the T-shaped riveting part, the shaping of the cap part of the T-shaped riveting part is realized, and the riveting strength of the T-shaped riveting part is improved.

Description

T type riveting member trimmer

Technical Field

The utility model relates to the field of riveting, in particular to a T-shaped riveting piece shaping machine.

Background

Riveting is a common connection mode between parts, and a riveting piece is widely applied to daily life and industrial production as the most important part in the riveting process, for example, in the production process of electronic products, the riveting piece is required to rivet some wires. The T-shaped riveting piece is a common riveting piece and comprises a connecting portion and a cap portion, and in the using process, the riveted T-shaped riveting piece is easy to turn over the edge of the cap portion backwards towards the connecting portion under the action of external stress, so that large internal stress can be generated inside the riveting piece, and the riveting strength is influenced. Therefore, in order to improve the quality of the caulking, it is necessary to reshape the cap portion with the caulking member turned backward so that the position and shape of the edge of the cap portion before caulking are restored.

SUMMERY OF THE UTILITY MODEL

In view of the above, the object of the present invention is: provided is a T-shaped rivet member shaping machine for shaping a cap of a T-shaped rivet member after riveting, so that the edge of the cap is restored to the position and shape before riveting, thereby improving the strength of riveting.

The T-shaped riveting part shaping machine provided by the embodiment of the utility model comprises: a base; the movable shaping mechanism is arranged on the base; the fixed shaping mechanism is arranged on one side of the movable shaping mechanism and is fixedly arranged on the base; the pressing mechanism is arranged on the base and located on one side, away from the fixed shaping mechanism, of the movable shaping mechanism, and the pressing mechanism is configured to push the movable shaping mechanism to move and extrude and shape the riveting piece to be shaped through the fixed shaping mechanism.

Furthermore, one side of the fixed shaping mechanism facing the movable shaping mechanism is provided with a convex shaping surface, and one side of the movable shaping mechanism facing the fixed shaping mechanism is provided with a concave shaping surface matched with the convex shaping surface.

Further, the fixed shaping mechanism is provided with a first positioning hole which penetrates through the convex shaping surface; the movable shaping mechanism is provided with a second positioning hole which penetrates through the concave shaping surface, and the first positioning hole and the second positioning hole are coaxial; and two ends of a wire connected to the riveting piece to be shaped respectively penetrate through the first positioning hole and the second positioning hole.

Further, the movable shaping mechanism includes: the first shaping mechanism is arranged on the base; and the second shaping mechanism is arranged on the base and is opposite to the first shaping mechanism, and the first shaping mechanism and the second shaping mechanism move relatively and abut against each other to form the concave shaping surface and the second positioning hole.

Further, the first reshaping mechanism comprises: the first mounting frame is mounted on the base; the first driving piece is fixedly arranged on the first mounting frame; the first shaping block is connected with the first driving piece, the first driving piece drives the first shaping block to move, and the moving direction is vertical to that of the pressing mechanism; and the first guide piece is respectively connected with the first mounting frame and the first shaping block.

Further, the second reshaping mechanism includes: the second mounting rack is mounted on the base; the second driving piece is fixedly arranged on the second mounting frame; the second shaping block is connected with the second driving piece, the second driving piece drives the second shaping block to move, and the second shaping block is matched with the first shaping block to clamp a riveting piece to be shaped; and the second guide part is respectively connected with the second mounting frame and the second shaping block.

Furthermore, a first shaping groove is formed in one end, close to the second shaping block, of the first shaping block, a second shaping groove opposite to the opening of the first shaping groove is formed in the second shaping block, and the first shaping groove and the second shaping groove are matched to form the concave shaping surface and the second positioning hole.

Further, the movable shaping mechanism further comprises: the guide rails are fixedly installed on the base at intervals, the extending direction of the guide rails is parallel to the moving direction of the pressing mechanism, and the first shaping mechanism and the second shaping mechanism are respectively installed on the corresponding guide rails in a sliding mode.

Further, the movable shaping mechanism further comprises: the fixing pieces are fixedly arranged on the base and are respectively positioned at the front ends of the corresponding guide rails facing the direction of the pressing mechanism; and one end of each elastic piece is fixedly connected with the fixing piece, and the other end of each elastic piece is fixedly connected with the first shaping mechanism or the second shaping mechanism.

Further, the pressing mechanism includes: the driving piece is fixedly arranged on the base; the guide piece is arranged on the base, and the extending direction of the guide piece is parallel to the driving direction of the driving piece; the moving piece is connected to the guide piece in a sliding mode and is linked with the driving piece; and the push rod is fixedly arranged on the moving piece and is arranged towards the movable shaping mechanism and the fixed shaping mechanism.

Further, the pressing mechanism further comprises: and the supporting plate is fixedly arranged at the top of the moving piece and is arranged in parallel with the base.

Further, the fixed shaping mechanism includes: the main body is fixedly arranged on the base; the fixed shaping block is fixed on the main body, and the convex shaping surface and the first positioning hole are arranged on the fixed shaping block; and the ball head end of the ball head plunger is arranged towards the direction of the movable shaping mechanism.

Further, the shaping machine further comprises: the control device is fixedly arranged on the base and is in signal connection with the movable shaping mechanism and the pressing mechanism; and the force adjusting device is fixedly arranged on the base and is in control connection with the movable shaping mechanism and/or the pressing mechanism.

According to the T-shaped riveting part shaping machine, the movable shaping mechanism, the fixed shaping mechanism and the pressing mechanism are arranged on the base, and the pressing mechanism is used for pushing the movable shaping mechanism, so that the movable shaping mechanism and the fixed shaping mechanism clamp the cap part of the T-shaped riveting part, the shaping of the cap part of the T-shaped riveting part is realized, and the riveting strength of the T-shaped riveting part is improved.

Drawings

The above and other objects, features and advantages of the present invention will become more apparent from the following description of the embodiments of the present invention with reference to the accompanying drawings, in which:

FIG. 1 is a schematic overall structure diagram of a T-shaped riveting member shaper according to an embodiment of the utility model;

FIG. 2 is a schematic diagram of the overall structure of the movable shaping mechanism according to the embodiment of the present invention;

FIG. 3 is a second schematic view of the overall structure of the movable shaping mechanism according to the embodiment of the present invention;

FIG. 4 is a schematic diagram of the internal structure of the movable shaping mechanism according to the embodiment of the present invention;

FIG. 5 is a schematic view of the overall structure of the pressing mechanism according to the embodiment of the present invention;

fig. 6 is a schematic overall structure diagram of the fixing and shaping mechanism according to the embodiment of the present invention.

Legend: 1. a base; 2. a movable shaping mechanism; 21. a concave shaping surface; 22. a second positioning hole; 23. a first shaping mechanism; 231. a first mounting bracket; 232. a first driving member; 233. a first shaping block; 2331. a first shaping groove; 234. a first guide member; 24. a second shaping mechanism; 241. a second mounting bracket; 242. a second driving member; 243. a second shaping block; 2431. a second shaping groove; 244. a second guide member; 25. a guide rail; 26. a fixing member; 27. an elastic member; 28. a protective cover plate; 3. fixing a shaping mechanism; 31. a convex shaping surface; 32. a first positioning hole; 33. a main body; 34. fixing a shaping block; 35. a ball plunger; 4. a hold-down mechanism; 41. a drive member; 42. a guide member; 43. a moving member; 44. a push rod; 45. a support plate; 5. a control device; 6. dynamics adjusting device.

Detailed Description

The present invention will be described below based on examples, but the present invention is not limited to only these examples. In the following detailed description of the present invention, certain specific details are set forth. It will be apparent to one skilled in the art that the present invention may be practiced without these specific details. Well-known methods, procedures, components and circuits have not been described in detail so as not to obscure the present invention.

Further, those of ordinary skill in the art will appreciate that the drawings provided herein are for illustrative purposes and are not necessarily drawn to scale.

Unless the context clearly requires otherwise, throughout the description, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, what is meant is "including, but not limited to".

In the description of the present invention, it is to be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1, the T-shaped riveted part shaper according to the embodiment of the present invention includes a base 1, a movable shaping mechanism 2, a fixed shaping mechanism 3, and a pressing mechanism 4. Wherein, the movable shaping mechanism 2 is arranged on the base 1. The fixed shaping mechanism 3 is arranged on one side of the movable shaping mechanism 2 and is fixedly arranged on the base 1. Hold-down mechanism 4 installs on base 1, and is located the one side that fixed plastic mechanism 3 was kept away from to movable plastic mechanism 2, and hold-down mechanism 4 is configured to promote movable plastic mechanism 2 to remove and treats plastic riveting piece with fixed plastic mechanism 3 extrusion plastic.

Before working, firstly, a riveted riveting piece to be reshaped is placed at a position to be reshaped between the movable reshaping mechanism 2 and the fixed reshaping mechanism 3, a connecting part of the T-shaped riveting piece to be reshaped can penetrate through the movable reshaping mechanism 2, then the pressing mechanism 4 is started, the pressing mechanism 4 starts to drive the movable reshaping mechanism 2 to move towards the fixed reshaping mechanism 3 until the movable reshaping mechanism 2 and the fixed reshaping mechanism 3 clamp a cap part of the T-shaped riveting piece to be reshaped in the middle, then the pressing mechanism 4 continues to apply certain pressure to compress the cap part, so that the outward turned edge of the cap part is restored to the initial state, and reshaping is completed. After the shaping is finished, the pressing mechanism 4 and the movable shaping mechanism 2 reset, the shaped riveting piece is taken down, and then the next riveting piece can be replaced to carry out shaping again. This embodiment is through setting up movable plastic mechanism 2, fixed plastic mechanism 3 and hold-down mechanism 4 on base 1, promotes movable plastic mechanism 2 with hold-down mechanism 4, makes movable plastic mechanism 2 and fixed plastic mechanism 3 press from both sides the cap portion of T type riveting piece tightly, has realized carrying out the plastic to T type riveting piece cap portion, has improved the riveting strength of T type riveting piece.

In some alternative embodiments, the shaper further comprises a control device 5 and a force adjustment device 6. The control device 5 is fixedly arranged on the base 1, is in signal connection with the movable shaping mechanism 2 and the pressing mechanism 4, and is used for controlling the starting and stopping of the movable shaping mechanism 2 and the pressing mechanism 4. The force adjusting device 6 is also fixedly arranged on the base 1, is in control connection with the movable shaping mechanism 2 and/or the pressing mechanism 4, and is used for controlling the force when the movable shaping mechanism 2 and/or the pressing mechanism 4 act so as to control the shaping effect. Specifically, the force adjusting device 6 can be an air pump and an adjusting valve.

In a particular embodiment, as shown in fig. 2 and 6, the fixed shaping means 3 is provided with a convex shaping surface 31 on the side facing the movable shaping means 2, and the movable shaping means 2 is provided with a concave shaping surface 21 adapted to the convex shaping surface 31 on the side facing the fixed shaping means 3. The convex shaping surface 31 and the concave shaping surface 21 are both arc-shaped surfaces, and the cap portion of the rivet is clamped between the convex shaping surface 31 and the concave shaping surface 21 for shaping. Because the riveting piece made of some metal materials has certain elasticity, the edge of the cap part after being shaped is slightly turned forwards in the direction away from the connecting part through the arc-shaped convex shaping surface 31 and the arc-shaped concave shaping surface 21, the problem that the shaping part is rebounded and turned backwards again after being shaped can be avoided, and the shaping effect is improved.

In a particular embodiment, the fixed shaping means 3 has a first positioning hole 32, the first positioning hole 32 passing through the convex shaping surface 31. The movable shaping mechanism 2 has a second positioning hole 22, the second positioning hole 22 passes through the concave shaping surface 21, and the first positioning hole 32 is coaxial with the second positioning hole 22. Wherein, the two ends of the wire connected to the riveting member to be shaped respectively pass through the first positioning hole 32 and the second positioning hole 22. Because this embodiment mainly used carries out the plastic to the riveting piece of riveting the wire rod, consequently be provided with first locating hole 32 and second locating hole 22, place the riveted wire rod and riveting piece together in the plastic position before carrying out the plastic, wherein the wire rod on riveting piece both sides passes first locating hole 32 and second locating hole 22 respectively and fixes a position, the position of riveting piece is more accurate when making the plastic, can just be located between protruding shaping face 31 and the sunken shaping face 21, the plastic effect is better.

In one particular embodiment, as shown in fig. 6, the fixed shaping mechanism 3 includes a main body 33, a fixed shaping block 34, and a plurality of ball plungers 35. Wherein the main body 33 is fixedly mounted on the base 1. A fixed shaping block 34 is fixed to the main body 33, and a convex shaping face 31 and a first positioning hole 32 are provided on the fixed shaping block 34. A plurality of ball plungers 35 are respectively installed on the main body 33 at both sides of the fixed shaping block 34, and ball ends of the ball plungers 35 are arranged toward the direction of the movable shaping mechanism 2. The fixed shaping block 34 can be replaced according to different shaping requirements, and is convenient to use and good in universality. The bulb plunger 35 plays a role in reverse thrust during shaping, so that the phenomenon that the cap part of the riveting piece is attached to the convex shaping surface 31 due to excessive extrusion is avoided, and meanwhile, the bulb plunger 35 can also play a role in buffering collision during extrusion collision.

As shown in fig. 2-4, in one particular embodiment, the movable shaping mechanism 2 includes a first shaping mechanism 23 and a second shaping mechanism 24. The first shaping mechanism 23 and the second shaping mechanism 24 are mounted on the base 1, the second shaping mechanism 24 is arranged opposite to the first shaping mechanism 23, and the first shaping mechanism 23 and the second shaping mechanism 24 can move relatively and abut against each other to form the concave shaping surface 21 and the second positioning hole 22. Because the riveting piece is riveted on the wire before shaping, the wire needs to pass through the first positioning hole 32 and the second positioning hole 22 when the riveting piece is placed at the shaping position, and because the distance between the movable shaping mechanism 2 and the fixed shaping mechanism 3 is small, when the flexibility of the wire is poor, the wire at the two ends of the riveting piece is difficult to pass through the first positioning hole 32 and the second positioning hole 22 respectively. Therefore, in the present embodiment, the movable shaping mechanism 2 is provided as two parts, namely, the first shaping mechanism 23 and the second shaping mechanism 24, and in the initial state, there is a space between the first shaping mechanism 23 and the second shaping mechanism 24, so that the wire rod near one end of the cap portion of the rivet member can be inserted into the first positioning hole 32 from the space, and then the first shaping mechanism 23 and the second shaping mechanism 24 are relatively moved to be closed, and the wire rod at the other end of the rivet member is clamped in the second positioning hole 22, and then the shaping operation is performed. This embodiment makes the operation and the use of trimmer more convenient through setting up like this.

In a particular embodiment, the first truing mechanism 23 includes a first mounting bracket 231, a first drive member 232, a first truing block 233, and a first guide member 234. The first mounting frame 231 is mounted on the base 1, the first shaping block 233 is connected with the first driving member 232, the first driving member 232 is fixedly mounted on the first mounting frame 231, and the first guiding member 234 is connected with the first mounting frame 231 and the first shaping block 233, respectively. In operation, the first driver 232 drives the first shaping block 233 to move along the first guide 234 in a direction perpendicular to the direction of movement of the pressing mechanism 4 until it is moved into contact with the second shaping mechanism 24 to clamp the wire in the second positioning hole 22. Specifically, the first driving member 232 may be a cylinder, which is simple in structure and low in cost. The first guide 234 may be a rail slider mechanism, which can improve the stability of the movement of the first shaping block 233.

In one particular embodiment, the second truing mechanism 24 includes a second mounting bracket 241, a second drive member 242, a second truing block 243, and a second guide member 244. The second mounting frame 241 is installed on the base 1, the second driving member 242 is fixedly installed on the second mounting frame 241, the second shaping block 243 is connected with the second driving member 242, and the second guiding member 244 is respectively connected with the second mounting frame 241 and the second shaping block 243. Specifically, the second shaping mechanism 24 and the first shaping mechanism 23 are symmetrically arranged, and during action, the second shaping mechanism 24 and the first shaping mechanism 23 move oppositely, and the second driving piece 242 drives the second shaping block 243 to move along the second guiding piece 244 to be matched with the first shaping block 233 to clamp the riveting piece to be shaped. The second shaping mechanism 24 and the first shaping mechanism 23 can move, so that the second shaping mechanism 24 and the first shaping mechanism 23 have enough space at the position of the first positioning hole 32, and the installation of the riveting piece and the wire rod is convenient.

In a specific embodiment, a first shaping block 233 is provided with a first shaping groove 2331 at an end thereof adjacent to the second shaping block 243, and the second shaping block 243 is provided with a second shaping groove 2431 opened opposite to the first shaping groove 2331. The first shaping groove 2331 and the second shaping groove 2431 are both semicircular ring structures, and have opposite openings and equal sizes. When the first shaping block 233 and the second shaping block 243 are closed, the first shaping groove 2331 is matched with the second shaping groove 2431 to form the concave shaping surface 21 and the second positioning hole 22 for positioning the wire and shaping the rivet by matching with the convex shaping surface 31.

In some alternative embodiments, the movable shaping mechanism 2 further includes a plurality of protective covers 28. A plurality of protective cover plates 28 are fixedly installed on the first and second mounting frames 231 and 241, respectively, and cover the first and second shaping blocks 233 and 243 therein. The protective cover plate 28 is used for protecting the internal structure, so that the dirt is prevented from falling into the protective cover plate, the work of the movable shaping mechanism is prevented from being influenced, meanwhile, a certain protective effect can be achieved on an operator, and accidents are prevented from occurring in the operation process.

In some alternative embodiments, the movable shaping mechanism 2 further comprises a plurality of guide rails 25. The guide rails 25 are fixedly installed on the base 1 at intervals, the extending direction of the guide rails is parallel to the moving direction of the pressing mechanism 4, and the first shaping mechanism 23 and the second shaping mechanism 24 are respectively installed on the corresponding guide rails 25 in a sliding mode. When the pressing mechanism 4 pushes the movable shaping mechanism 2 to move towards the fixed shaping mechanism 3 to press the riveting piece, the first shaping mechanism 23 and the second shaping mechanism 24 respectively move forwards along the guide rail 25, the guide rail 25 can play a role in guiding, and the moving direction of the movable shaping mechanism 2 is prevented from deviating.

In some alternative embodiments, the movable shaping mechanism 2 further comprises a plurality of securing members 26 and a plurality of elastic members 27. The plurality of fixing members 26 are fixedly mounted on the base 1 and respectively located at the front ends of the corresponding guide rails 25 in the direction toward the pressing mechanism 4. The elastic members 27 have one end fixedly connected to the fixing member 26 and the other end fixedly connected to the first shaping mechanism 23 or the second shaping mechanism 24. Specifically, the elastic member 27 is a tension spring, when the pressing mechanism 4 pushes the movable shaping mechanism 2 to press the rivet with the fixed shaping mechanism 3, the elastic member 27 is in a stretching state, and after shaping is completed, the pressing mechanism 4 returns, and at this time, the first shaping mechanism 23 and the second shaping mechanism 24 can also automatically return under the elastic force of the elastic member 27. Through setting up mounting 26 and elastic component 27, can make activity plastic mechanism 2 automatic return after the plastic is accomplished, make the use of trimmer more convenient to make hold-down mechanism 4 need not with activity plastic mechanism 2 fixed connection, make the convenient dismantlement of trimmer, and reduced the probability of equipment damage.

As shown in fig. 5, in a specific embodiment, the pressing mechanism 4 includes a driving member 41, a guide member 42, a moving member 43, and a push rod 44. The driving member 41 and the guide member 42 are fixedly installed on the base 1, and the extending direction of the guide member 42 is parallel to the driving direction of the driving member 41. The moving member 43 is slidably connected to the guide member 42 and is interlocked with the driving member 41. The push rod 44 is fixedly installed on the moving member 43 and is disposed toward the movable shaping mechanism 2 and the fixed shaping mechanism 3. Specifically, the driving member 41 is a cylinder, and has a simple structure and is convenient to use, and the guide member 42 is a guide rail, and plays a role in guiding the movement of the moving member 43, so that the moving direction is prevented from deviating. During operation, the driving member 41 pushes the moving member 43 to move along the guiding member 42, and the moving member 43 drives the push rod 44 to move synchronously until the push rod 44 abuts against the movable shaping mechanism 2, so as to push the movable shaping mechanism 2 to the fixed shaping mechanism 3 for shaping.

In some alternative embodiments, the hold-down mechanism 4 further comprises a support plate 45. The supporting plate 45 is fixedly arranged on the top of the moving member 43 and is arranged in parallel with the base 1. The support plate 45 is used for bearing the wire rods connected with one end of the riveting piece, and the wire rods at one end of the connecting part of the riveting piece are placed on the support plate 45 before shaping, so that the riveting piece can be stably located at a position to be shaped, and shaping work after finishing is facilitated.

In summary, the T-shaped riveting member shaper of the embodiment is configured such that the movable shaping mechanism 2, the fixed shaping mechanism 3 and the pressing mechanism 4 are arranged on the base 1, and the pressing mechanism 4 pushes the movable shaping mechanism 2, so that the movable shaping mechanism 2 and the fixed shaping mechanism 3 clamp the cap portion of the T-shaped riveting member, thereby shaping the cap portion of the T-shaped riveting member and improving the riveting strength of the T-shaped riveting member.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (13)

1. A T-shaped riveted joint trimmer characterized in that it comprises:

a base (1);

the movable shaping mechanism (2) is arranged on the base (1);

the fixed shaping mechanism (3) is arranged on one side of the movable shaping mechanism (2) and is fixedly arranged on the base (1);

the pressing mechanism (4) is installed on the base (1) and located on one side, away from the fixed shaping mechanism (3), of the movable shaping mechanism (2), and the pressing mechanism (4) is configured to push the movable shaping mechanism (2) to move and extrude and shape the riveting piece to be shaped with the fixed shaping mechanism (3).

2. The trimmer according to claim 1, characterized in that the side of the fixed trimmer means (3) facing the movable trimmer means (2) is provided with a convex trimmer surface (31), and the side of the movable trimmer means (2) facing the fixed trimmer means (3) is provided with a concave trimmer surface (21) adapted to the convex trimmer surface (31).

3. The trimmer according to claim 2, characterized in that said fixed reshaping means (3) have a first positioning hole (32), said first positioning hole (32) passing through said convex reshaping surface (31);

the movable shaping mechanism (2) is provided with a second positioning hole (22), the second positioning hole (22) penetrates through the concave shaping surface (21), and the first positioning hole (32) is coaxial with the second positioning hole (22);

the two ends of the wire connected to the riveting piece to be shaped respectively penetrate through the first positioning hole (32) and the second positioning hole (22).

4. The trimmer according to claim 3, characterized in that the movable trimming mechanism (2) comprises:

a first shaping mechanism (23) mounted on the base (1); and

and the second shaping mechanism (24) is arranged on the base (1) and is opposite to the first shaping mechanism (23), and the first shaping mechanism (23) and the second shaping mechanism (24) move relatively and abut against each other to form the concave shaping surface (21) and the second positioning hole (22).

5. The trimmer according to claim 4, characterized in that the first trimming mechanism (23) comprises:

a first mounting bracket (231) mounted on the base (1);

a first driving member (232) fixedly mounted on the first mounting frame (231);

the first shaping block (233) is connected with the first driving piece (232), the first driving piece (232) drives the first shaping block (233) to move, and the moving direction is perpendicular to the moving direction of the pressing mechanism (4); and

a first guide (234), the first guide (234) connecting the first mounting bracket (231) and the first shaping block (233), respectively.

6. The trimmer according to claim 5, characterized in that the second trimming mechanism (24) comprises:

a second mounting bracket (241) mounted on the base (1);

a second driving member (242) fixedly mounted on the second mounting frame (241); and

the second shaping block (243) is connected with the second driving piece (242), the second driving piece (242) drives the second shaping block (243) to move, and the second shaping block (243) is matched with the first shaping block (233) to clamp a riveting piece to be shaped; and

a second guide (244), the second guide (244) connecting the second mounting frame (241) and the second shaping block (243), respectively.

7. The trimmer according to claim 6, characterized in that a first shaping groove (2331) is provided on the first shaping block (233) near one end of the second shaping block (243), a second shaping groove (2431) opposite to the opening of the first shaping groove (2331) is provided on the second shaping block (243), and the first shaping groove (2331) and the second shaping groove (2431) cooperate to form the recessed shaping surface (21) and the second positioning hole (22).

8. The trimmer according to claim 4, characterized in that the movable trimming mechanism (2) further comprises:

the guide rails (25) are fixedly installed on the base (1) at intervals, the extending direction of the guide rails is parallel to the moving direction of the pressing mechanism (4), and the first shaping mechanism (23) and the second shaping mechanism (24) are installed on the corresponding guide rails (25) in a sliding mode.

9. The trimmer according to claim 8, characterized in that the movable trimming mechanism (2) further comprises:

the fixing pieces (26) are fixedly arranged on the base (1) and are respectively positioned at the front ends of the corresponding guide rails (25) towards the direction of the pressing mechanism (4);

and a plurality of elastic pieces (27), one end of each elastic piece is fixedly connected with the fixing piece (26), and the other end of each elastic piece is fixedly connected with the first shaping mechanism (23) or the second shaping mechanism (24).

10. The trimmer according to claim 1, characterized in that the hold-down mechanism (4) comprises:

the driving piece (41) is fixedly arranged on the base (1);

a guide (42) mounted on the base (1) and extending in a direction parallel to the driving direction of the driving member (41);

a moving part (43) which is connected to the guide part (42) in a sliding manner and is linked with the driving part (41);

and the push rod (44) is fixedly arranged on the moving piece (43) and is arranged towards the directions of the movable shaping mechanism (2) and the fixed shaping mechanism (3).

11. The trimmer according to claim 10, characterized in that the hold-down mechanism (4) further comprises:

and the supporting plate (45) is fixedly arranged at the top of the moving piece (43) and is parallel to the base (1).

12. The trimmer according to claim 3, characterized in that the fixed reshaping means (3) comprise:

a main body (33) fixedly mounted on the base (1);

a fixed shaping block (34) fixed on the main body (33), the convex shaping surface (31) and the first positioning hole (32) being provided on the fixed shaping block (34);

and the ball plungers (35) are respectively arranged on two sides of the fixed shaping block (34) on the main body (33), and the ball ends of the ball plungers (35) face the direction of the movable shaping mechanism (2).

13. The trimmer of claim 1, further comprising:

the control device (5) is fixedly arranged on the base (1), and the control device (5) is in signal connection with the movable shaping mechanism (2) and the pressing mechanism (4); and

and the force adjusting device (6) is fixedly arranged on the base (1) and is in control connection with the movable shaping mechanism (2) and/or the pressing mechanism (4).

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