CN114378244B - Core pulling type pneumatic rivet gun - Google Patents
Core pulling type pneumatic rivet gun Download PDFInfo
- Publication number
- CN114378244B CN114378244B CN202111676497.5A CN202111676497A CN114378244B CN 114378244 B CN114378244 B CN 114378244B CN 202111676497 A CN202111676497 A CN 202111676497A CN 114378244 B CN114378244 B CN 114378244B
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- China
- Prior art keywords
- lever
- slope surface
- engagement
- push rod
- rivet
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/30—Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention belongs to the field of automobile accessories, and discloses a core pulling type pneumatic rivet gun, which comprises a gun body, wherein a main cylinder and a meshing component are arranged in the gun body, a push rod is arranged at the power output end of the main cylinder, a clamping part is arranged on the push rod, and the front end of the clamping part is an open side; the engagement assembly consists of two levers which are oppositely arranged, one end of each lever is an engagement end, the other end of each lever is hinged with a swinging piece, and the variable included angle range between each swinging piece and the end part of each lever is x-y degrees. The rivet gun can complete the actions of pulling out the core and riveting by supplying one main cylinder, and has reliable operation and simple structure.
Description
Technical Field
The invention relates to the field of automobile accessories, in particular to a core pulling type pneumatic rivet gun.
Background
The plastic rivet used by the majority of automobile manufacturers is a core pulling plastic rivet, the structure of the plastic rivet is shown in figure 1, the plastic rivet comprises a core body A and a rivet body B, the core body A is provided with a head C and a core rod D, the core rod D extends into the rivet body B, the end part of the core rod D is fixedly connected with the inner cavity of the rivet body B, the end part of the rivet body B is provided with a rivet cap E, and the diameter of the rivet cap E is larger than the width of the head C.
The outer diameter of the core rod D is greater than or equal to L 1 The method comprises the steps of carrying out a first treatment on the surface of the The outer diameter of the rivet cap E is less than or equal to L 3 ；
The technical problem to be solved by the scheme is as follows: how to design a kind of rivet gun that can beat above-mentioned core pulling plastic rivet fast, need adopt as few pneumatic mechanism as possible simultaneously, because pneumatic mechanism is more, and it is more easy to leak gas, for example simple realization is that one cylinder pushes the rivet, and another cylinder is used for pulling core, and this is easy to realize, but the reliability is poor, life is short. A further optimization objective is therefore: the master cylinder should be designed to have only one master cylinder to perform all actions if possible.
Disclosure of Invention
The invention aims to provide a core pulling type pneumatic rivet gun, which can complete the actions of core pulling and riveting by adopting a main cylinder, and has reliable operation and simple structure.
In order to achieve the above purpose, the present invention provides the following technical solutions: the core pulling type pneumatic rivet gun comprises a gun body, wherein a main cylinder and an engagement assembly are arranged in the gun body, a push rod is arranged at the power output end of the main cylinder, a clamping part is arranged on the push rod, and the front end of the clamping part is an open side; the engagement assembly consists of two levers which are oppositely arranged, one end of each lever is an engagement end, the other end of each lever is hinged with a swinging piece, and the variable included angle range between each swinging piece and the end part of each lever is x-y degrees; the fulcrum of the lever is positioned in the middle of the lever and is connected with the gun body, two engagement ends form an engagement part, and the tail ends of the engagement ends are provided with cutting edges; the opposite sides of the two levers are provided with concave parts which are matched with the surfaces of the push rods; the push rod is provided with a push block, the push block is provided with a first slope surface at one side far away from the engagement end, and the swing piece is provided with a second slope surface at one side close to the engagement end;
when the swinging pieces swing to x degrees, a gap between the two swinging pieces can be used for the pushing block to pass through;
when the swinging piece swings to y degrees, the first slope surface is contacted with the second slope surface;
when the first slope surface and the second slope surface are completely contacted, the distance between the two cutting edges is L 1 ；
The distance between the two cutting edges is L when the first slope surface and the second slope surface are contacted 2 ；
When the first slope surface and the second slope surface are changed from partial contact to separation contact, the distance between the two cutting edges is 0;
when the push rod is inserted into the occluding component and is engaged with the concave part, the distance between the two cutting edges is L 3 ；
Wherein L is 3 ＞L 1 ＞L 2 ＞0。
In the core pulling type pneumatic rivet gun, the upper side and the lower side of the free end of the push rod are provided with the first guide slope.
In the above-mentioned core pulling type pneumatic rivet gun, the swinging member is L-shaped, one side of the swinging member is located above the end of the lever, and the second slope is disposed on the other side of the swinging member.
In the core pulling type pneumatic rivet gun, the other side of the swinging piece opposite to the second slope surface is provided with the second guide slope surface, and the second slope surface and the second guide slope surface form an acute angle end part;
the side of the pushing block opposite to the first slope surface is a third guide slope surface, and the first slope surface and the third guide slope surface also form an acute angle end part;
in the above-mentioned core pulling pneumatic riveter, the snap-in end is detachably fixed to the end of the lever.
In the core pulling type pneumatic rivet gun, two end parts of the lever are connected through an inclined connecting rod, and the two end parts of the lever are horizontal ends; the connecting rod and the two ends constitute a lever.
The core pulling type pneumatic rivet gun further comprises a rivet feeding module, wherein the rivet feeding module comprises a rivet feeding channel and an auxiliary cylinder, a rivet pushing rod is arranged at the power output end of the auxiliary cylinder, and a torsion spring is arranged between the rivet pushing rod and the power output end; the nail pushing rod extends into the nail feeding channel; the output end of the nail feeding channel is opposite to the clamping part.
In the core pulling type pneumatic rivet gun, the auxiliary cylinder is linked with the main cylinder;
when the main cylinder drives the push rod to move to a preset position, the auxiliary cylinder acts to push the head of the self-plugging plastic rivet in the rivet feeding channel into the clamping part.
The core pulling type pneumatic rivet gun further comprises a trigger, wherein the trigger is in linkage with an air valve of the main air cylinder;
the gun also comprises a main handle and an auxiliary handle which are connected with the gun body, wherein the main handle is positioned at the rear of the trigger, and the auxiliary handle is positioned at the front of the trigger.
In the core pulling type pneumatic rivet gun, the gun body is provided with the waste collection cavity which is arranged opposite to the rivet feeding module.
Compared with the prior art, the invention has the beneficial effects that:
the rivet gun can complete the actions of pulling out the core and riveting by feeding the rivet gun to the main cylinder, and has reliable operation and simple structure.
Drawings
FIG. 1 is a perspective view of a core-pulling plastic rivet of example 1 of the present invention;
fig. 2 is a perspective view of embodiment 1 of the present invention;
fig. 3 is a front view (omitting the nailing module) of an operation state of embodiment 1 of the present invention;
fig. 4 is a front view (omitting the nailing module) of an operation state of embodiment 1 of the present invention;
fig. 5 is a front view (omitting the nailing module) of an operation state of embodiment 1 of the present invention;
FIG. 6 is a perspective view of the staple feeding module of embodiment 1 of the present invention;
fig. 7 is a perspective view of the lever of embodiment 1 of the present invention.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1-7, a core pulling type pneumatic rivet gun comprises a gun body 1, wherein a main cylinder 2 and a snap-in component 3 are arranged in the gun body 1, a push rod 4 is arranged at the power output end of the main cylinder 2, a clamping part 41 is arranged on the push rod 4, and the front end of the clamping part 41 is an open side 42; the engagement assembly 3 is composed of two levers 31 which are oppositely arranged, one end of each lever 31 is an engagement end, the other end of each lever 31 is hinged with a swinging piece 32, and the variable included angle between each swinging piece 32 and the end of each lever 31 ranges from x degrees to y degrees; the fulcrum of the lever 31 is positioned in the middle of the lever 31 and is connected with the gun body 1, two engagement ends form an engagement part, and the tail ends of the engagement ends are provided with cutting edges 33; the opposite side of the two levers 31 is provided with recesses 34, said recesses 34 matching the surface of the push rod 4; the push rod 4 is provided with a push block 43, the push block 43 is provided with a first slope 44 at one side far away from the engagement end, and the swing piece 32 is provided with a second slope 35 at one side near the engagement end;
when the swinging members 32 swing to x °, a gap between the two swinging members 32 is allowed for the push block 43 to pass;
when the swinging member 32 swings to y °, the first slope 44 and the second slope 35 contact;
the distance between the two edges 33 is L when the first slope 44 and the second slope 35 are in full contact 1 ；
The distance between the two cutting edges 33 is L when the first slope 44 and the second slope 35 are partially contacted 2 ；
The distance between the two edges 33 is 0 when the first ramp 44 and the second ramp 35 transition from partial contact to release contact;
when the push rod 4 is inserted into the snap assembly and is fitted with the recess 34, the distance between the two cutting edges 33 is L 3 ；
Wherein L is 3 ＞L 1 ＞L 2 ＞0。
In this embodiment, x=0, y=90; the push rod 4 is cylindrical, and the section of the concave part 34 is arc-shaped;
in the working process, referring to fig. 3, firstly, the head part C of the rivet is clamped into the clamping part 41, the nail body B extends out of the open side 42, the main cylinder 2 acts to push the push rod 4 to move forward, when the push block 43 pushes the swinging piece 32 forward to less than y DEG, the whole push rod 4 enters into the space formed by the two levers 31, the push rod 4 continues to move forward, the push rod 4 contacts with the concave part 34 to push the opening of the engagement assembly to be large, so that the rivet cap E can pass through the opening, referring to fig. 4, when the push rod 4 moves to the limit position, the main cylinder 2 contracts, the push rod 4 moves backward, and referring to fig. 5, when the first slope 44 and the second slope 35 are completely contacted, the distance between the two cutting edges 33 is L 1 At this time, the snap-in component and one side of the rivet cap E, which is close to the main cylinder 2, are close to or in contact with each other; the push rod 4 continues to move backwards, the space between the biting components continues to be reduced until the space between the two cutting edges 33 is 0 when the first slope 44 and the second slope 35 are changed from partial contact to release contact, and the cutting edges 33 bite the core rod D; and (3) completing riveting; the push rod 4 continues to move backwards untilTo the other extreme position.
In the drawing, the reference numeral L4 is the length of the loose core.
A new round of caulking operation can be performed by refilling rivets into the engagement portion 41.
In this embodiment, the upper and lower sides of the free end of the push rod 4 are provided with first guide ramps 45. The first guide slope 45 is beneficial to the contact between the push rod 4 and the concave part 34, and does not generate hard collision with the concave part 34.
The specific structure of the swinging member 32 is: the swinging member 32 is L-shaped, one side of the swinging member 32 is located above the end of the lever 31, and the second slope 35 is provided on the other side of the swinging member 32. The hinge position of the swinging member 32 is at the corner of the L-shape.
In this embodiment, the other side of the swing member 32 opposite to the second slope 35 is a second guiding slope 36, and the second slope 35 and the second guiding slope 36 form an acute angle end;
a third guiding slope 46 is arranged on the side, opposite to the first slope 44, of the pushing block 43, and the first slope 44 and the third guiding slope 46 also form an acute angle end;
the second guide slope 36 and the third guide slope 46 prevent the push block 43 from rigidly colliding with the swing member 32.
In order to improve the ease of replacement of the wearing parts, the snap-in end is detachably secured to the end of the lever 31.
As a specific implementation form of the lever 31, two ends of the lever 31 are connected by an inclined connecting rod, and two ends of the lever 31 are horizontal ends; the connecting rod and the two ends constitute a lever 31.
In addition, the embodiment also discloses a nail feeding module 5, wherein the nail feeding module 5 is used for automatically feeding rivets into the gun, specifically, the nail feeding module 5 comprises a nail feeding channel 51 and an auxiliary cylinder 52, a nail pushing rod 53 is arranged at the power output end of the auxiliary cylinder 52, and a torsion spring is arranged between the nail pushing rod 53 and the power output end; the ejector pin 53 extends into the pin feed channel 51; the output end of the nail feeding channel 51 is opposite to the clamping part 41, and the auxiliary cylinder 52 is linked with the main cylinder 2; when the main cylinder 2 drives the push rod 4 to move to a preset position, the auxiliary cylinder 52 acts to push the head part C of the self-plugging plastic rivet in the rivet feeding channel 51 into the clamping part 41.
The torsion spring can make the ejector pin 53 penetrate into the nail feeding channel 51 in a natural state, and the ejector pin 53 can swing freely in a direction away from the nail feeding channel 51 but has an angle limit in a direction towards the nail feeding channel 51, so that the rivet can not swing when being pushed, and if the rivet is to be withdrawn from the nail feeding channel 51, the ejector pin 53 can be pulled to separate the ejector pin 53 from the nail feeding channel 51, so that the rivet can be withdrawn.
As an alternative design, the gun also comprises a trigger 6, a main grip 7 and an auxiliary grip 8 which are connected with the gun body 1, wherein the trigger 6 is in linkage with an air valve of the main air cylinder 2, the main grip 7 is positioned at the rear of the trigger 6, the auxiliary grip 8 is positioned at the front of the trigger 6, and a waste collection cavity 9 which is arranged opposite to the nail feeding module 5 is arranged on the gun body 1.
Claims (10)
1. The core pulling type pneumatic rivet gun comprises a gun body and is characterized in that a main cylinder and a meshing component are arranged in the gun body, a push rod is arranged at the power output end of the main cylinder, a clamping part is arranged on the push rod, and the front end of the clamping part is an open side; the engagement assembly consists of two levers which are oppositely arranged, one end of each lever is an engagement end, the other end of each lever is hinged with a swinging piece, each swinging piece is L-shaped, and the variable included angle between each swinging piece and the end part of each lever ranges from 0 degree to 90 degrees; the fulcrum of the lever is positioned in the middle of the lever and is connected with the gun body, two engagement ends form an engagement part, and the tail ends of the engagement ends are provided with cutting edges; the opposite sides of the two levers are provided with concave parts which are matched with the surfaces of the push rods; the push rod is provided with a push block, the push block is provided with a first slope surface at one side far away from the engagement end, and the swing piece is provided with a second slope surface at one side close to the engagement end;
when the swinging pieces swing to 0 degree, a gap between the two swinging pieces can be used for the pushing block to pass through;
when the swinging piece swings to 90 degrees, the first slope surface is contacted with the second slope surface;
when the first slope surface and the second slope surface are completely contacted, the distance between the two cutting edges is L 1 ；
The distance between the two cutting edges is L when the first slope surface and the second slope surface are contacted 2 ；
When the first slope surface and the second slope surface are changed from partial contact to separation contact, the distance between the two cutting edges is 0;
when the push rod is inserted into the occluding component and is engaged with the concave part, the distance between the two cutting edges is L 3 ；
Wherein L is 3 ＞L 1 ＞L 2 ＞0。
2. The pop-up pneumatic riveter of claim 1, wherein the upper and lower sides of the free end of the push rod are provided with first guide ramps.
3. The pop-up pneumatic riveter of claim 1, wherein the swinging member is L-shaped, one edge of the swinging member is located above an end of the lever, and the second slope is provided on the other edge of the swinging member.
4. The pop-up pneumatic riveter of claim 1, wherein the other side of the swinging member opposite the second ramp is a second guide ramp, the second ramp and the second guide ramp forming an acute angle end;
the side of the push block opposite to the first slope surface is a third guide slope surface, and the first slope surface and the third guide slope surface also form an acute angle end part.
5. The pop-up pneumatic riveter of claim 1, wherein the snap-in end is removably secured to an end of a lever.
6. The core pulling pneumatic riveter of claim 1, wherein the two ends of the lever are connected by an inclined connecting rod, and the two ends of the lever are horizontal ends; the connecting rod and the two ends constitute a lever.
7. The core pulling type pneumatic riveter according to claim 1, further comprising a nail feeding module, wherein the nail feeding module comprises a nail feeding channel and an auxiliary cylinder, a power output end of the auxiliary cylinder is provided with a nail pushing rod, and a torsion spring is arranged between the nail pushing rod and the power output end; the nail pushing rod extends into the nail feeding channel; the output end of the nail feeding channel is opposite to the clamping part.
8. The pop-up pneumatic riveter of claim 7, wherein the auxiliary cylinder and the main cylinder are linked;
when the main cylinder drives the push rod to move to a preset position, the auxiliary cylinder acts to push the head of the self-plugging plastic rivet in the rivet feeding channel into the clamping part.
9. The pop-up pneumatic riveter of claim 1, further comprising a trigger, the trigger being in linkage with the air valve of the master cylinder;
the gun also comprises a main handle and an auxiliary handle which are connected with the gun body, wherein the main handle is positioned at the rear of the trigger, and the auxiliary handle is positioned at the front of the trigger.
10. The core pulling pneumatic riveter of claim 7, wherein the gun body is provided with a waste collection chamber disposed opposite the feed module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111676497.5A CN114378244B (en) | 2021-12-31 | 2021-12-31 | Core pulling type pneumatic rivet gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111676497.5A CN114378244B (en) | 2021-12-31 | 2021-12-31 | Core pulling type pneumatic rivet gun |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114378244A CN114378244A (en) | 2022-04-22 |
| CN114378244B true CN114378244B (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111676497.5A Active CN114378244B (en) | 2021-12-31 | 2021-12-31 | Core pulling type pneumatic rivet gun |
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| Country | Link |
|---|---|
| CN (1) | CN114378244B (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1481514A (en) * | 1973-07-27 | 1977-08-03 | Avdel Ltd | Riveting apparatus |
| CN2046783U (en) * | 1989-05-03 | 1989-11-01 | 康世忠 | Multifunction hand apparatus with punching, riveting, bending and shearing functions |
| US5605070A (en) * | 1994-03-04 | 1997-02-25 | Gespia Blindniettechnik Gmbh | Blind rivet nut setting device |
| CN1254635A (en) * | 1998-11-20 | 2000-05-31 | 株式会社理光 | Hollow rivet decomposing device and method, and production system using said method |
| CN1686634A (en) * | 2005-05-05 | 2005-10-26 | 贺启宇 | Hand electric core extraction pneumatic riveter |
| KR20110131826A (en) * | 2010-05-31 | 2011-12-07 | 주식회사 성우하이텍 | Self-piercing rivet system |
| CN107186155A (en) * | 2017-07-27 | 2017-09-22 | 李振飞 | Even brill connects riveting formula hand riveter |
| CN107812876A (en) * | 2017-12-13 | 2018-03-20 | 郑州默尔电子信息技术有限公司 | A kind of small-sized labour-saving riveting gun |
| CN209006604U (en) * | 2019-03-21 | 2019-06-21 | 中国民用航空飞行学院 | For fastening the device of pulling rivet |
| CN212495160U (en) * | 2020-06-30 | 2021-02-09 | 锋尚绿品零碳物联技术(青岛)有限公司 | Core-pulling type rivet pulling device |
| CN112475193A (en) * | 2020-10-30 | 2021-03-12 | 孔永峰 | Pneumatic hand riveter |
-
2021
- 2021-12-31 CN CN202111676497.5A patent/CN114378244B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1481514A (en) * | 1973-07-27 | 1977-08-03 | Avdel Ltd | Riveting apparatus |
| CN2046783U (en) * | 1989-05-03 | 1989-11-01 | 康世忠 | Multifunction hand apparatus with punching, riveting, bending and shearing functions |
| US5605070A (en) * | 1994-03-04 | 1997-02-25 | Gespia Blindniettechnik Gmbh | Blind rivet nut setting device |
| CN1254635A (en) * | 1998-11-20 | 2000-05-31 | 株式会社理光 | Hollow rivet decomposing device and method, and production system using said method |
| CN1686634A (en) * | 2005-05-05 | 2005-10-26 | 贺启宇 | Hand electric core extraction pneumatic riveter |
| KR20110131826A (en) * | 2010-05-31 | 2011-12-07 | 주식회사 성우하이텍 | Self-piercing rivet system |
| CN107186155A (en) * | 2017-07-27 | 2017-09-22 | 李振飞 | Even brill connects riveting formula hand riveter |
| CN107812876A (en) * | 2017-12-13 | 2018-03-20 | 郑州默尔电子信息技术有限公司 | A kind of small-sized labour-saving riveting gun |
| CN209006604U (en) * | 2019-03-21 | 2019-06-21 | 中国民用航空飞行学院 | For fastening the device of pulling rivet |
| CN212495160U (en) * | 2020-06-30 | 2021-02-09 | 锋尚绿品零碳物联技术(青岛)有限公司 | Core-pulling type rivet pulling device |
| CN112475193A (en) * | 2020-10-30 | 2021-03-12 | 孔永峰 | Pneumatic hand riveter |
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| Publication number | Publication date |
|---|---|
| CN114378244A (en) | 2022-04-22 |
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