CN213079951U - Rivet gun - Google Patents

Abstract

The utility model discloses a rivet gun, which comprises a shell, a material sucking mechanism for generating vacuum to suck rivets, and a feeding positioning mechanism for providing a feeding channel for the rivets and positioning the rivets; the shell is provided with an air source mechanism for providing compressed gas, a control mechanism for controlling the output of the compressed gas in the air source mechanism, a driving mechanism for driving the riveting mechanism to rivet by utilizing the compressed gas provided by the air source mechanism, and a riveting mechanism for breaking the rivet to rivet; the feeding positioning mechanism is rotatably arranged at one end of the driving mechanism; the utility model discloses in, thereby the accessible produces vacuum and absorbs the rivet into to this effect that reaches the feeding, and can feed with this rivet to various materials, thereby improve the result of use of riveter, just the utility model discloses the feeding and the riveting of intelligent control rivet guarantee the operating condition of riveter with this.

Description

Rivet gun

Technical Field

The utility model relates to a riveting field, concretely relates to riveter.

Background

The rivet gun is used for fastening and riveting various metal plates, pipes and other manufacturing industries, and is widely used for riveting electromechanical and light industrial products such as automobiles, aviation, railways, refrigeration, elevators, switches, instruments, furniture, decorations and the like at present. The rivet gun is developed for overcoming the defects that a nut is easy to melt and an internal thread is easy to slip when a metal sheet and a thin pipe are welded, the internal thread does not need to be tapped and the nut does not need to be welded when riveting, and the riveting is firm, high in efficiency and convenient and fast to use.

However, in the existing rivet gun, the rivet is sucked in by the electromagnet during riveting, and the rivet is positioned and fixed by the electromagnet during positioning, so that the rivet only can be an iron rivet, and the existing rivet gun has the condition of single use state and is difficult to adapt to rivets made of other materials; and the existing rivet gun has poor control performance and often has the condition of riveting error.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a riveter to prior art's weak point to reach the purpose that adapts to various rivets and improve control effect.

The utility model adopts the technical proposal that: a rivet gun comprises a shell, a material sucking mechanism for sucking rivets and a feeding and positioning mechanism for providing a feeding channel for the rivets and positioning the rivets; the shell is provided with an air source mechanism for providing compressed gas and oil, a control mechanism for controlling the output of the compressed gas in the air source mechanism, a driving mechanism for driving the riveting mechanism to rivet by utilizing the compressed gas and the oil provided by the air source mechanism, and a riveting mechanism for breaking a rivet to rivet; the feeding positioning mechanism is rotatably arranged at one end of the driving mechanism; the material suction mechanism is arranged on the riveting mechanism and is fixedly connected with the driving mechanism, and the material suction mechanism is connected with the air source mechanism; the riveting mechanism is connected with the driving mechanism in a sliding manner; the control mechanism is connected with the air source mechanism; the driving mechanism is connected with the control mechanism, and the driving mechanism is connected with the air source mechanism.

Further, the air source mechanism comprises an air inlet used for being connected with an external air source, a piston assembly used for providing oil for riveting, and an exhaust block used for providing a connection position; the piston assembly is mounted on the shell, the air inlet and the exhaust block are both mounted on the piston assembly, and the air inlet and the exhaust block are connected through a pipeline; the control mechanism and the material suction mechanism are both connected with the exhaust block; and a piston chamber for placing oil is arranged in the piston assembly, and the piston assembly is connected with the driving mechanism.

Further, the control mechanism comprises an electromagnetic valve for controlling the opening and closing of the pipeline and an air control valve for reversing the flow of the compressed gas; the electromagnetic valve and the pneumatic valve are both arranged in the shell, and the electromagnetic valve is connected with the pneumatic control valve through a pipeline; the electromagnetic valve is connected with the air source mechanism through a pipeline, and the air control valve is connected with the driving mechanism through a pipeline.

Further, the material suction mechanism comprises a vacuum generator and an air supply pipe; the vacuum generator is arranged on the riveting mechanism and is fixedly connected with the driving mechanism; one end of the air supply pipe is connected with the vacuum generator, and the other end of the air supply pipe is connected with the air source mechanism.

Further, the driving mechanism comprises a fastening block, a spring assembly and a connecting block; the connecting block is fixedly arranged on the riveting mechanism; one end of the spring assembly is connected with the connecting block, and the other end of the spring assembly is connected with the fastening block; the fastening block is fixedly connected with the shell, and the fastening block is in sliding connection with the riveting mechanism; two rod cavities for mounting spring components are symmetrically arranged on the fastening block; and a movable cavity for installing a riveting mechanism is arranged in the fastening block.

Further, the driving mechanism further comprises an annular block; an annular groove for mounting the feeding positioning mechanism is formed in the annular block; and a connecting channel for slidably mounting the riveting mechanism is arranged in the annular block.

Further, the riveting mechanism comprises a material pipe, a connecting piece, a riveting pipe, a riveting head and a pipe sleeve; the material pipe is connected with one end of the riveting pipe through a connecting piece, and the riveting head is arranged at the other end of the riveting pipe; the pipe sleeve is sleeved on one end of the riveting pipe, which is provided with the riveting head; the material pipe is fixedly connected with the driving mechanism, and the material sucking mechanism is installed on the material pipe.

Further, the feeding positioning mechanism comprises a first positioning block and a second positioning block; the first positioning block is rotatably arranged on the driving mechanism and is hinged with the second positioning block; the first locating block is provided with a riveting channel for a riveting mechanism to pass through, and the first locating block is provided with an installation slot for being connected with the driving mechanism.

Furthermore, a feeding channel for the rivet to enter is arranged on the first positioning block; a limiting part for positioning the rivet is arranged on the first positioning block; and the first positioning block is provided with a positioning groove for communicating the feeding channel with the riveting channel.

Furthermore, at least one threaded hole is formed in the first positioning block and communicated with the installation slot.

To sum up, the utility model discloses following beneficial effect has: the utility model discloses in, thereby the accessible produces vacuum and absorbs the rivet into to this effect that reaches the feeding, and can feed with this rivet to various materials, thereby improve the result of use of riveter, just the utility model discloses the feeding and the riveting of intelligent control rivet guarantee the operating condition of riveter with this.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is a schematic structural view of the inside of the casing of the present invention;

fig. 3 is a schematic structural diagram of the driving mechanism of the present invention;

fig. 4 is a partial cross-sectional view of the present invention;

fig. 5 is a cross-sectional view of the material sucking mechanism, the driving mechanism and the riveting mechanism of the present invention;

fig. 6 is a schematic structural view of the riveting mechanism of the present invention;

fig. 7 is a cross-sectional view of the riveting mechanism of the invention;

fig. 8 is a schematic structural view of the feeding positioning mechanism of the present invention;

fig. 9 is a schematic structural view of another view angle of the feeding positioning mechanism of the present invention;

figure 10 is a cross-sectional view of the feed positioning mechanism of the present invention;

FIG. 11 is a schematic view of the feed positioning mechanism and ring block mechanism of the present invention;

fig. 12 is an exploded view of the feed positioning mechanism and ring block of the present invention.

Wherein, 1, a shell; 101. a handle portion; 2. an air source mechanism; 201. a piston assembly; 202. an air inlet; 203. an exhaust block; 204. a piston chamber; 3. a material sucking mechanism; 301. a vacuum generator; 4. a drive mechanism; 401. connecting blocks; 402. a spring assembly; 403. a fastening block; 404. a movable cavity; 405. a rod cavity; 406. a ring block; 407. an annular groove; 408. a connecting channel; 5. a feeding positioning mechanism; 501. a first positioning block; 502. a second positioning block; 503. a feed channel; 504. riveting a channel; 505. positioning a groove; 506. a limiting part; 507. installing a slot position; 508. a threaded hole; 6. a riveting mechanism; 601. a material pipe; 602. a connecting member; 603. riveting the tube; 604. riveting a joint; 605. pipe sleeve; 7. a control mechanism; 701. an electromagnetic valve; 702. a pneumatic control valve.

Detailed Description

In order to make the objects, features and advantages of the present invention more comprehensible, embodiments of the present invention are described in detail below with reference to the accompanying drawings. Several embodiments of the invention are given in the accompanying drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art. 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 one or more of that feature.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced device or element must be in a particular orientation, constructed and operated, and therefore should not be construed as limiting the present invention.

The present invention will be further explained with reference to the embodiments of the drawings.

As shown in fig. 1-4, the utility model provides a rivet gun, which comprises a shell 1, a material sucking mechanism 3 and a feeding and positioning mechanism 5; the shell 1 is provided with an air source mechanism 2, a control mechanism 7, a driving mechanism 4 and a riveting mechanism 6; the feeding positioning mechanism 5 is rotatably arranged at one end of the driving mechanism 4; the material sucking mechanism 3 is installed on the riveting mechanism 6, the material sucking mechanism 3 is fixedly connected with the driving mechanism 4, the material sucking mechanism 3 is connected with the air source mechanism 2, the control mechanism 7 is connected with the air source mechanism 2, and the driving mechanism 4 is connected with the control mechanism 7; the driving mechanism 4 is connected with the control mechanism 7, and the driving mechanism 4 is connected with the air source mechanism 2; wherein, a handle part 101 for holding by hand of a user is formed on the shell 1, the air source mechanism 2 is used for connecting with an external air source to provide compressed air for riveting driving of the rivet gun, the control mechanism 7 is used for controlling output of the compressed air in the air source mechanism 2, and comprises the steps of controlling flow reversing of the compressed air, so as to control the position of the compressed air entering the driving mechanism 4, and accordingly, the driving mechanism 4 can drive the riveting mechanism 6 to reciprocate, so that the riveting mechanism 6 breaks and rivets the rivets, the material suction mechanism 3 is used for generating vacuum, so as to suck the rivets from the material feeding positioning mechanism 5, and the rivets are kept in a horizontal state through positioning of the material feeding positioning mechanism 5, so that the riveting mechanism 6 breaks the rivets to complete riveting, and the broken rivet tails are sucked and discharged through the material suction mechanism 3, can realize the automatic feeding and the riveting of riveter through above-mentioned setting, can guarantee the operating condition and the work efficiency of riveter, just the utility model discloses in, produce the vacuum by inhaling material mechanism 3 to this absorbs the rivet into, thereby can adapt to the rivet of various materials, and adapt to multiple service environment, and can improve the result of use of riveter.

The pressure inside the driving mechanism is driven and changed by a button on the handle part 101 of the shell 1, so that the riveting mechanism is stretched and contracted, and riveting of rivets is carried out.

As shown in fig. 2-4, the air supply mechanism 2 includes an air inlet 202, a piston assembly 201, and an exhaust block 203; the piston assembly 201 is mounted on the housing 1, the air inlet 202 and the exhaust block 203 are both mounted on the piston assembly 201, and the control mechanism 7 and the material suction mechanism 3 are both connected with the exhaust block 203; a piston chamber 204 for containing oil is arranged in the piston assembly 201, and the piston assembly 201 is connected with the driving mechanism 4; wherein, the air inlet 202 is connected with an external air source through a connecting pipe, so that air can be provided for the components connected on the air exhaust block 203, the piston assembly 201 can press oil in the piston chamber 204 into the fastening block 403 of the driving mechanism 4, so that driving liquid can be provided for the rivet gun, and the air exhaust block 203 is used for providing mounting positions for the components, so that the components can be connected with the air inlet 202 and connected with the external air source through the mounting positions, so that compressed air can be obtained.

Wherein, compressed gas is used for riveting of riveting mechanism to the rivet, and fluid is used for resetting riveting mechanism riveting completion back to it can reciprocating motion to this can let riveting mechanism, thereby guarantees riveting work.

As shown in fig. 3 and 4, the control mechanism 7 includes a solenoid valve 701 and a pneumatic valve 702; the electromagnetic valve 701 and the pneumatic valve are both arranged inside the shell 1, and the electromagnetic valve 701 is connected with the pneumatic control valve 702 through a connecting pipe; the electromagnetic valve 701 is connected with the air source mechanism 2 through a connecting pipe, and the pneumatic control valve 702 is connected with the driving mechanism 4 through a connecting pipe; the electromagnetic valve 701 is used for controlling the opening and closing of the connecting pipe, so that compressed gas in the exhaust block 203 is controlled to be exhausted, the pneumatic control valve 702 can be set to be a reversing valve, the gas in the connecting pipe is reversed, the pressure in the driving assembly is controlled, the stretching and retracting of the riveting mechanism 6 are controlled, and therefore the rivet is snapped and riveted.

The material suction mechanism 3 comprises a vacuum generator 301 and an air supply pipe; the vacuum generator 301 is mounted on the riveting mechanism 6, and the vacuum generator 301 is fixedly connected with the driving mechanism 4; one end of the air supply pipe is connected with the vacuum generator 301, and the other end of the air supply pipe is connected with the air source mechanism 2; wherein, produce the vacuum through vacuum generator 301 in riveting mechanism 6 inside to can take the rivet from the outside and advance the location to 5 insides of feeding positioning mechanism, with this feeding that realizes the rivet, and enter into feeding positioning mechanism inside back at the rivet, the suction that accessible vacuum generator produced is fixed it, prevents to drop out because inertia or collision, can this guarantee the riveting stability of rivet.

The utility model discloses in, come to carry out the feeding to the rivet through the vacuum, the rivet of adaptable various materials, and can let the riveter adapt to various environment with this to improve the result of use of riveter.

As shown in fig. 3-5, the driving mechanism 4 includes a fastening block 403, a spring assembly 402, and a connecting block 401; the connecting block 401 is fixedly arranged on the riveting mechanism 6; one end of the spring assembly 402 is connected with the connecting block 401, and the other end is connected with the fastening block 403; the fastening block 403 is fixedly connected with the shell 1, and the fastening block 403 is slidably connected with the riveting mechanism 6; two rod cavities 405 for installing the spring assemblies 402 are symmetrically arranged on the fastening block 403; a movable cavity 404 for installing a riveting mechanism 6 is arranged inside the fastening block 403; the riveting mechanism 6 can reciprocate in the movable cavity 404 to realize riveting of rivets, the rod cavity 405 is communicated with the piston cavity 204 in the piston assembly 201 through a connecting pipe to convey oil in the piston cavity 204 to the rod cavity 405 and the movable cavity 404, the movable cavity 404 is connected with the pneumatic control valve 702 through a connecting pipe to convey compressed gas to the movable cavity 404, the pressure in the rod cavity 405 and the pressure in the movable cavity 404 are changed through the oil and the compressed gas to drive the riveting mechanism 6 to reciprocate to rivet, the compressed gas is used for driving the riveting mechanism to rivet, the spring assembly 402 is stretched in the riveting process, the oil is used for resetting of the riveting mechanism, and the resetting of the spring assembly 402 can be accelerated to realize the reciprocating movement of the riveting mechanism 6 on the driving mechanism 4.

As shown in fig. 11 and 12, the driving mechanism 4 further includes a ring block 406; a connecting channel 408 is arranged inside the annular block 406, and the connecting channel 408 is used for moving the riveting mechanism 6; the annular block 406 is provided with an annular groove 407, the annular groove 407 is used for providing a position for installing the feeding positioning mechanism 5, and the feeding positioning mechanism 5 can rotate on the annular groove 407, so that the position of the feeding positioning mechanism 5 can be adjusted, the riveting environment can be adapted to, and the phenomenon that the riveting mechanism collides with other objects during riveting can be avoided, and the work is influenced.

As shown in fig. 5 to 7, the riveting mechanism 6 includes a material pipe 601, a connecting member 602, a riveting pipe 603, a riveting head 604 and a pipe sleeve 605; the material pipe 601 is connected with one end of the riveting pipe 603 through a connecting piece 602, and the riveting head 604 is installed at the other end of the riveting pipe 603; the pipe sleeve 605 is sleeved on one end of the riveting pipe 603, which is provided with a riveting head 604; the material pipe 601 is fixedly connected with the driving mechanism 4, and the material sucking mechanism 3 is installed on the material pipe 601; wherein, riveting mechanism 6 is through reciprocal telescopic movement to snap the rivet, realize the riveting, at riveting mechanism 6 removal in-process, pipe sleeve 605 can be gradually with the nail tail card of the rivet on feeding positioning mechanism 5 in the hole site of front end, and the suction that accessible vacuum generator produced, make the rivet can stably put on riveting mechanism, rethread rivet head 604 snap the nail tail of rivet, thereby accomplish the riveting, and the nail tail after the snapping can be under the vacuum suction that vacuum generator 301 produced, arrange the riveter outside from material pipe 601, with this riveting of accomplishing the rivet and the row of material of nail tail.

As shown in fig. 8 to 12, the feeding positioning mechanism 5 includes a first positioning block 501 and a second positioning block 502; the first positioning block 501 is rotatably mounted on the driving mechanism 4, and the first positioning block 501 is hinged to the second positioning block 502; a riveting channel 504 is arranged on the first positioning block 501, and the riveting channel 504 is used for providing a position for the movement of the riveting mechanism 6.

The first positioning block 501 is provided with an installation groove 507, the installation groove 507 is used for installing the annular block 406 of the driving mechanism 4, wherein the first positioning block 501 is provided with at least one threaded hole 508, the threaded hole 508 is communicated with the installation groove 507, the threaded hole 508 can penetrate through the threaded hole 508 and abut against the annular groove 407 of the annular block 406 through a screw, so that the annular block 406 is fixedly connected with the first positioning block 501, when the position of the feeding positioning mechanism 5 needs to be adjusted, the screw can be unscrewed, so that the fixed connection between the feeding positioning mechanism 5 and the driving mechanism 4 is loosened, the feeding positioning mechanism 5 is rotated on the annular block 406, so that the position of the feeding positioning mechanism 5 is correspondingly adjusted, the installation position of the feeding positioning mechanism 5 is prevented from being unadjustable in the using process, and the feeding positioning mechanism 5 collides with an article during riveting, affecting the riveting operation.

Further, a feeding channel 503 for the rivet to enter is arranged on the first positioning block 501; a limiting part 506 for positioning the rivet is arranged on the first positioning block 501; a positioning groove 505 is arranged on the first positioning block 501 to communicate the feeding channel 503 and the riveting channel 504; the rivet is sucked from the feeding channel 503 by the suction force generated by the vacuum generator 301, and moves to the limiting part 506 along the feeding channel 503, the rivet head is limited by the limiting part 506, so that the rivet can rotate gradually, and finally the rivet is horizontally placed between the first positioning block 501 and the second positioning block 502, so that the rivet can be clamped into the pipe sleeve 605 and broken by the rivet joint 604 in the horizontal reciprocating process of the riveting mechanism 6.

Further, a magnet 509 may be further disposed on the second positioning block 502 to further fix the iron rivet, so that the iron rivet may be horizontally and stably placed between the first positioning block 501 and the second positioning block 502, thereby providing another fixing manner, that is, when the rivet is made of iron material, the magnet 509 may be used in cooperation with a vacuum generator to fix the rivet.

The utility model discloses in, accessible vacuum generator 301 produces the vacuum, thereby it comes in to absorb rivet feedstock channel 503 department, with this effect that reaches the feeding, and can feed with this rivet to various materials, thereby improve the result of use of riveter, spacing through spacing portion 506 is after that, can make the rivet level place in feeding positioning mechanism 5 inside, then snap the rivet through riveting mechanism 6, with this realization riveting, and the nail tail after snapping, can be under vacuum generator 301's effect, discharge away from material pipe 601, with this intelligent material loading and the riveting of realizing the rivet, and accomplish the intelligent control of rivet, and can this operating condition who guarantees the riveter.

The above is only the preferred embodiment of the present invention, the present invention is not limited to the above embodiment, there may be local minor structural modification in the implementation process, if it is right that various modifications or variations of the present invention do not depart from the spirit and scope of the present invention, and belong to the claims and the equivalent technical scope of the present invention, then the present invention is also intended to include these modifications and variations.

Claims (10)

1. A rivet gun, its characterized in that: the rivet feeding device comprises a shell, a material sucking mechanism for sucking rivets and a feeding positioning mechanism for providing a feeding channel for the rivets and positioning the rivets; the shell is provided with an air source mechanism for providing compressed gas and oil, a control mechanism for controlling the output of the compressed gas in the air source mechanism, a driving mechanism for driving the riveting mechanism to rivet by utilizing the compressed gas and the oil provided by the air source mechanism, and a riveting mechanism for breaking a rivet to rivet; the feeding positioning mechanism is rotatably arranged at one end of the driving mechanism; the material suction mechanism is arranged on the riveting mechanism and is fixedly connected with the driving mechanism, and the material suction mechanism is connected with the air source mechanism; the riveting mechanism is connected with the driving mechanism in a sliding manner; the control mechanism is connected with the air source mechanism; the driving mechanism is connected with the control mechanism, and the driving mechanism is connected with the air source mechanism.

2. A rivet gun as set forth in claim 1, characterized in that: the air source mechanism comprises an air inlet used for being connected with an external air source, a piston assembly used for providing oil for riveting and an exhaust block used for providing a connection position; the piston assembly is mounted on the shell, the air inlet and the exhaust block are both mounted on the piston assembly, and the air inlet and the exhaust block are connected through a pipeline; the control mechanism and the material suction mechanism are both connected with the exhaust block; and a piston chamber for placing oil is arranged in the piston assembly, and the piston assembly is connected with the driving mechanism.

3. A rivet gun as set forth in claim 1, characterized in that: the control mechanism comprises an electromagnetic valve for controlling the opening and closing of the pipeline and a pneumatic control valve for reversing the flow of the compressed gas; the electromagnetic valve and the pneumatic control valve are both arranged in the shell, and the electromagnetic valve is connected with the pneumatic control valve through a pipeline; the electromagnetic valve is connected with the air source mechanism through a pipeline, and the air control valve is connected with the driving mechanism through a pipeline.

4. A rivet gun as set forth in claim 1, characterized in that: the material suction mechanism comprises a vacuum generator and an air supply pipe; the vacuum generator is arranged on the riveting mechanism and is fixedly connected with the driving mechanism; one end of the air supply pipe is connected with the vacuum generator, and the other end of the air supply pipe is connected with the air source mechanism.

5. A rivet gun as set forth in claim 1, characterized in that: the driving mechanism comprises a fastening block, a spring assembly and a connecting block; the connecting block is fixedly arranged on the riveting mechanism; one end of the spring assembly is connected with the connecting block, and the other end of the spring assembly is connected with the fastening block; the fastening block is fixedly connected with the shell, and the fastening block is in sliding connection with the riveting mechanism; two rod cavities for mounting spring components are symmetrically arranged on the fastening block; and a movable cavity for installing a riveting mechanism is arranged in the fastening block.

6. A rivet gun as set forth in claim 5, characterized in that: the drive mechanism further comprises an annular block; an annular groove for mounting the feeding positioning mechanism is formed in the annular block; and a connecting channel for slidably mounting the riveting mechanism is arranged in the annular block.

7. A rivet gun as set forth in claim 1, characterized in that: the riveting mechanism comprises a material pipe, a connecting piece, a riveting pipe, a riveting head and a pipe sleeve; the material pipe is connected with one end of the riveting pipe through a connecting piece, and the riveting head is arranged at the other end of the riveting pipe; the pipe sleeve is sleeved on one end of the riveting pipe, which is provided with the riveting head; the material pipe is fixedly connected with the driving mechanism, and the material sucking mechanism is installed on the material pipe.

8. A rivet gun as set forth in claim 1, characterized in that: the feeding positioning mechanism comprises a first positioning block and a second positioning block; the first positioning block is rotatably arranged on the driving mechanism and is hinged with the second positioning block; the first locating block is provided with a riveting channel for a riveting mechanism to pass through, and the first locating block is provided with an installation slot for being connected with the driving mechanism.

9. A rivet gun as set forth in claim 8, characterized in that: a feeding channel for rivets to enter is arranged on the first positioning block; a limiting part for positioning the rivet is arranged on the first positioning block; and the first positioning block is provided with a positioning groove for communicating the feeding channel with the riveting channel.

10. A rivet gun as set forth in claim 8, characterized in that: at least one threaded hole is formed in the first locating block and communicated with the mounting groove.

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