CN208787457U

CN208787457U - A kind of novel pneumatic rivet gun

Info

Publication number: CN208787457U
Application number: CN201821202211.3U
Authority: CN
Inventors: 丁俞岚
Original assignee: Changxin Hengda Electronic Material Co Ltd
Current assignee: Changxin Hengda Electronic Material Co Ltd
Priority date: 2018-07-27
Filing date: 2018-07-27
Publication date: 2019-04-26
Anticipated expiration: 2028-07-27

Abstract

The utility model discloses a kind of novel pneumatic rivet guns, including rivet gun, electric pushrod is installed on the side outer wall of the rivet gun, and the inside of rivet gun offers the first air cavity, guide pin chamber and the second air cavity, the guide pin chamber and the second air cavity are located at the adjacent two sides of the first air cavity, the inside of first air cavity is equipped with the first spring and piston, the piston is located at the side of the first spring, and piston rod is welded on the side outer wall of piston, it is intracavitary that the piston rod far from one end of piston is located at guide pin, the inside of the guide pin chamber is equipped with formed punch and limit plate, the utility model is provided with formed punch, limit plate and limiting slot, when initial, engage between the fixture block and limiting slot that limit plate passes through two sides, form the limiting device in the intracavitary portion of guide pin, breather valve is pressed at this time, also it is only capable of making formed punch ejection where limit plate At position, percussion can not be not only generated, but also pulling force effect can not be formed.

Description

A kind of novel pneumatic rivet gun

Technical field

The utility model belongs to pneumatic rivet gun technical field, and in particular to a kind of novel pneumatic rivet gun.

Background technique

Pneumatic rivet gun also known as Pneumatic hand riveter are that current domestic advanced clincher tool leads to using compressed air as power The series connection of each cylinder is crossed to achieve the purpose that break rivet, there is staking conveniently, riveting speed is fast, it is light-weight and oil-free to hold The advantages that liquid is lost.

In the Chinese utility model patent of Patent No. CN206527310U, a kind of Pneumatic hand riveter is proposed, is utilized The case where mutual cooperation of gun body internal structure increases a locking device to the outlet of pulling rivet, prevents accidental injury, and It is convenient to open, but latch is fixed on the outside of muzzle in above equipment, needs to dismantle installation back and forth in use, lead Cause step in use process various, and influence rivet greater than muzzle at the position that matches with latch of drive rod one end Output, in addition in rivet gun when being worked, principle is the transmission by gas, if the mobile phase of rivet gun internal gas It mutually influences to be easy to cause the reduction of rivet gun pulling force, and is unable to reach scheduled riveting effect.

Utility model content

The purpose of this utility model is to provide a kind of novel pneumatic rivet gun, to solve existing to be not easy to realize rivet Smooth output and air-flow influence each other the problem of reducing rivet gun pulling force.

To achieve the above object, the utility model provides the following technical solutions: a kind of novel pneumatic rivet gun, including blind rivet Rifle, is equipped with electric pushrod on the side outer wall of the rivet gun, and the inside of rivet gun offer the first air cavity, guide pin chamber and Second air cavity, the guide pin chamber and the second air cavity are located at the adjacent two sides of the first air cavity, the inside peace of first air cavity Equipped with the first spring and piston, the piston is located at the side of the first spring, and is welded with piston rod on the side outer wall of piston, The piston rod is located at that guide pin is intracavitary far from one end of piston, and the inside of the guide pin chamber is equipped with formed punch and limit plate, described Limit plate is located at the side of formed punch, and limit plate is connected together by limiting slot and guide pin chamber, the side outer wall of the formed punch with Piston rod welding, is connected with the first tracheae between first air cavity and the second air cavity.

Preferably, the inside of the piston rod is through there is a telescopic rod, the both ends of the telescopic rod respectively with electric pushrod and Formed punch connection, and the inside of telescopic rod screws and is connected with screw rod, one end and the limit plate of the screw rod are connected together.

Preferably, the inside of the formed punch offers through-hole and mounting groove, and the mounting groove is located at the side of through-hole, and pacifies Card slot is offered on the two sides inner wall of tankage.

Preferably, the inside of the limit plate is equipped with second spring and fixture block, and the fixture block is located at the one of second spring End, and fixture block and limiting slot and card slot are to be connected together.

Preferably, the inside of first tracheae is equipped with breather valve, and is equipped with list at the position of the first tracheae side To valve, one end of the check valve is equipped with the second tracheae, and the one end of second tracheae far from check valve and the second air cavity connect It connects.

Preferably, it is embedded with motor at the position of electric pushrod side on the rivet gun outer wall, the motor One end is rotatably connected to driving gear set by shaft, and the driving gear set is composed there are two meshing gear, and wherein One geared sleeve is set on telescopic rod.

The utility model compared with prior art, has the advantages that

(1) the utility model is provided with formed punch, limit plate and limiting slot, when initial, limit plate by the fixture blocks of two sides with Engage between limiting slot, form the limiting device in the intracavitary portion of guide pin, press breather valve at this time, is also only capable of making formed punch ejection in limit At position where plate, percussion can not be not only generated, but also pulling force effect can not be formed, and when needing using the rivet gun, Start motor, motor drives driving gear set to rotate by shaft, and driving gear set drives telescopic rod rotation, and telescopic rod exists Screwed during rotation with screw rod so that screw rod is mobile to the inside of telescopic rod, and screw rod drive when moving limit plate by Gradually close to formed punch, while fixture block gradually skids off limiting slot by the inclined-plane of side, and compresses second spring, and limit plate is close to punching It is caught in inside mounting groove when head, and the fixture block of limit plate two sides is then caught in card slot, completes the fixation between formed punch and limit plate, It is then shut off motor, formed punch engages to form an entirety with limit plate in this case, and formed punch is when being impacted and being pulled back, Drive limit plate synchronizing moving, in overall structure, without any blocking position outside guide pin chamber, be easy to implement rivet importing and Output, while the position by changing limit plate can effectively realize the protective action of the rivet gun again, avoid generating accidental injury.

(2) the utility model is provided with the first air cavity, the second air cavity and the first tracheae and presses first when being worked The breather valve of rivet gun side, so that breather valve is in the open state, the compressed gas inside the first air cavity passes through first at this time Tracheae flows into the second air cavity, and the first air cavity internal gas is reduced so that pressure reduction, to generate percussion, then starts Electric pushrod, by the driving of electric pushrod so that telescopic rod bounces back, and telescopic rod drives formed punch guide during retraction The inside of nail cavity is mobile, and pushes piston mobile by piston rod, the elongation of the first spring, and makes inside the first air cavity in negative Pressure condition is sucked the gas inside the second air cavity in the first air cavity by the effect of the second tracheae and check valve, so that whole Rivet gun recovery is respectively positioned on inside rivet gun in unused state, the first air cavity and the second air cavity, in use in air cavity The gas leakproofness that does not exchange, thus can be effectively ensured in air cavity with extraneous gas, and pass through breather valve and unidirectional Valve interaction, so that being independent of each other between air guide and return-air, realizes the one-way conduction of gas, so that rivet gun be made to be formed Pulling force it is more stable.

Detailed description of the invention

Fig. 1 is the front view of the utility model；

Fig. 2 is enlarged drawing at the A of the utility model；

Fig. 3 is the structural schematic diagram of the utility model formed punch；

Fig. 4 is enlarged drawing at the B of the utility model；

In figure: 1- rivet gun, 2- electric pushrod, the first air cavity of 3-, the first spring of 31-, 32- piston, 33- piston rod, 34- Telescopic rod, 35- screw rod, 4- guide pin chamber, 41- formed punch, 411- through-hole, 412- mounting groove, 413- card slot, 42- limit plate, 421- Two springs, 422- fixture block, 43- limiting slot, the second air cavity of 5-, the first tracheae of 51-, 52- breather valve, 53- check valve, 54- second Tracheae, 6- motor, 7- driving gear set.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

It please refers to shown in Fig. 1-Fig. 4, the utility model provides the following technical solutions: a kind of novel pneumatic rivet gun, including Rivet gun 1 is equipped with electric pushrod 2 on the side outer wall of rivet gun 1, and the inside of rivet gun 1 offers the first air cavity 3, leads Nail cavity 4 and the second air cavity 5, guide pin chamber 4 and the second air cavity 5 are located at the adjacent two sides of the first air cavity 3, the first air cavity 3 it is interior Portion is equipped with the first spring 31 and piston 32, and piston 32 is located at the side of the first spring 31, and welds on the side outer wall of piston 32 It is connected to piston rod 33, piston rod 33 is located in guide pin chamber 4 far from one end of piston 32, and the inside of guide pin chamber 4 is equipped with formed punch 41 With limit plate 42, limit plate 42 is located at the side of formed punch 41, and limit plate 42 is connected together by limiting slot 43 with guide pin chamber 4, The side outer wall and piston rod 33 of formed punch 41 weld, and the first tracheae 51 is connected between the first air cavity 3 and the second air cavity 5, is passed through The interaction of two the first air cavitys 3 and the second air cavity 5 both ensure that the good leakproofness of pneumatic structure, and in turn ensure entirety Rivet gun 1, which has, stablizes pulling force, and equally cooperates between formed punch 41 and limit plate 42, plays a protective role when separated, Then play the role of combination impact when engaging.

Further, the inside of piston rod 33 is through there is a telescopic rod 34, the both ends of telescopic rod 34 respectively with electric pushrod 2 and Formed punch 41 connects, and the inside of telescopic rod 34 screws and is connected with screw rod 35, and one end and the limit plate 42 of screw rod 35 are connected together, and leads to The engaging between screw rod 35 and limit plate 42 is crossed, can effectively realize connection and disconnection between screw rod 35 and limit plate 42.

Further, the inside of formed punch 41 offers through-hole 411 and mounting groove 412, and mounting groove 412 is located at through-hole 411 Side, and card slot 413 is offered on the two sides inner wall of mounting groove 412, screw rod 35 runs through through-hole 411, and not with through-hole 411 Inner wall is in contact, and screw rod 35 is effectively avoided to drive formed punch 41 mobile when moving.

Specifically, the inside of limit plate 42 is equipped with second spring 421 and fixture block 422, and fixture block 422 is located at second spring 421 one end, and fixture block 422 and limiting slot 43 and card slot 413 are to be connected together, and are offered on the two sides outer wall of fixture block 422 Different inclined-planes, the opposite sliding being easy to implement between limiting slot 43 and card slot 413, thus the engaging under realizing different conditions With separate.

It is worth noting that the inside of the first tracheae 51 is equipped with breather valve 52, and at the position of 51 side of the first tracheae Check valve 53 is installed, one end of check valve 53 is equipped with the second tracheae 54, the one end of the second tracheae 54 far from check valve 53 with The connection of second air cavity 5 can effectively avoid generating leakage in gas backstreaming by check valve 53.

Preferably, motor 6, one end of motor 6 are embedded at the position of 2 side of electric pushrod on 1 outer wall of rivet gun It is rotatably connected to driving gear set 7 by shaft, driving gear set 7 is composed there are two meshing gear, and one of tooth Wheel is sheathed on telescopic rod 34, and motor 6 uses GA12-N20 micromotor, voltage range: 3-9V, voltage rating: 6V, specified sky Idling speed: 500RPM/ minutes, nominal load revolving speed: 400RPM/ minutes, and the driving structure mobile as limit plate 42, it is electronic Push rod 2 and motor 6 are electrically connected with power switch.

The working principle and process for using of the utility model: this using it is novel when in use, need to open the guide pin chamber 4 first Internal limiting device starts motor 6, and motor 6 drives driving gear set 7 to rotate by shaft, and driving gear set 7 drives Telescopic rod 34 rotates, and telescopic rod 34 is screwed with screw rod 35 in the course of rotation, so that screw rod 35 is moved to the inside of telescopic rod 34 It is dynamic, and screw rod 35 drives limit plate 42 to move closer to formed punch 41 when moving, while fixture block 422 is gradually slided by the inclined-plane of side Limiting slot 43 out, and second spring 421 is compressed, limit plate 42 is caught in inside mounting groove 412 when close to formed punch 41, and limit plate The fixture block 422 of 42 two sides is then caught in card slot 413, is completed the fixation between formed punch 41 and limit plate 42, is then shut off motor 6, And the breather valve 52 of 1 side of rivet gun is pressed, so that breather valve 52 is in the open state, the compression inside the first air cavity 3 at this time Gas is flowed into the second air cavity 5 by the first tracheae 51, and 3 internal gas of the first air cavity is reduced so that pressure reduces, thus piston Thrust suffered by 32 reduces, and the first spring 31 generates rebound at this time, so that the direction of piston 32 to close guide pin chamber 4 is mobile, And piston 32 then pushes the external mobile of 41 guide nail cavity 4 of piston rod 33 and formed punch, formed punch 41 drives limit under the action of thrust Position plate 42 is mobile, applies pressure to rivet, so that manufactured head be made to complete expansion, finally starts electric pushrod 2, passes through electric pushrod 2 driving is so that telescopic rod 34 bounces back, and telescopic rod 34 drives the inside of 41 guide nail cavity 4 of formed punch to move during retraction It is dynamic, apply secondary pulling force to rivet, so that nail stalk be broken, completes plate riveting, and formed punch 41 passes through piston in the process Bar 33 pushes piston 32 mobile, the elongation of the first spring 31, and to pass through the second gas in negative pressure state inside the first air cavity 3 The effect of pipe 54 and check valve 53 sucks the gas inside the second air cavity 5 in first air cavity 3, so that whole rivet gun 1 restores In unused state.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a kind of novel pneumatic rivet gun, including rivet gun (1), it is characterised in that: pacify on the side outer wall of the rivet gun (1) Inside equipped with electric pushrod (2), and rivet gun (1) offers the first air cavity (3), guide pin chamber (4) and the second air cavity (5), institute It states guide pin chamber (4) and the second air cavity (5) is located at the adjacent two sides of the first air cavity (3), the inside peace of first air cavity (3) Equipped with the first spring (31) and piston (32), the piston (32) is located at the side of the first spring (31), and the one of piston (32) It is welded on the outer wall of side piston rod (33), the piston rod (33) is located in guide pin chamber (4) far from the one end of piston (32), described The inside of guide pin chamber (4) is equipped with formed punch (41) and limit plate (42), and the limit plate (42) is located at the side of formed punch (41), and Limit plate (42) is connected together by limiting slot (43) with guide pin chamber (4), the side outer wall and piston rod of the formed punch (41) (33) it welds, is connected with the first tracheae (51) between first air cavity (3) and the second air cavity (5).

2. a kind of novel pneumatic rivet gun according to claim 1, it is characterised in that: the inside of the piston rod (33) is passed through It is installed with telescopic rod (34), the both ends of the telescopic rod (34) are connect with electric pushrod (2) and formed punch (41) respectively, and telescopic rod (34) inside, which screws, to be connected with screw rod (35), and one end and the limit plate (42) of the screw rod (35) are connected together.

3. a kind of novel pneumatic rivet gun according to claim 1, it is characterised in that: the inside of the formed punch (41) opens up There are through-hole (411) and mounting groove (412), the mounting groove (412) is located at the side of through-hole (411), and the two of mounting groove (412) Card slot (413) are offered on the inner wall of side.

4. a kind of novel pneumatic rivet gun according to claim 1, it is characterised in that: pacify the inside of the limit plate (42) Equipped with second spring (421) and fixture block (422), the fixture block (422) is located at one end of second spring (421), and fixture block (422) It is to be connected together with limiting slot (43) and card slot (413).

5. a kind of novel pneumatic rivet gun according to claim 1, it is characterised in that: the inside of first tracheae (51) It is equipped with breather valve (52), and is equipped with check valve (53) at the position of the first tracheae (51) side, the check valve (53) One end is equipped with the second tracheae (54), and second tracheae (54) connect far from the one end of check valve (53) with the second air cavity (5).

6. a kind of novel pneumatic rivet gun according to claim 1, it is characterised in that: rivet gun (1) outer wall is upper It is embedded at the position of electric pushrod (2) side motor (6), one end of the motor (6) is rotatably connected to biography by shaft Moving gear group (7), the driving gear set (7) are composed there are two meshing gear, and one of geared sleeve is set to and stretches On bar (34).