CN110293203B - Gun head self-locking opening and closing mechanism of blind rivet gun - Google Patents
Gun head self-locking opening and closing mechanism of blind rivet gun Download PDFInfo
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- CN110293203B CN110293203B CN201910628409.0A CN201910628409A CN110293203B CN 110293203 B CN110293203 B CN 110293203B CN 201910628409 A CN201910628409 A CN 201910628409A CN 110293203 B CN110293203 B CN 110293203B
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- jaw part
- gun
- blind rivet
- opening
- shaped bent
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- 238000006073 displacement reaction Methods 0.000 claims abstract description 6
- 230000007704 transition Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- TVEXGJYMHHTVKP-UHFFFAOYSA-N 6-oxabicyclo[3.2.1]oct-3-en-7-one Chemical compound C1C2C(=O)OC1C=CC2 TVEXGJYMHHTVKP-UHFFFAOYSA-N 0.000 description 1
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Classifications
-
- 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)
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Abstract
The invention discloses a gun head self-locking opening and closing mechanism of a blind rivet gun, which comprises: the gun head comprises an upper jaw part and a lower jaw part, and the upper jaw part and the lower jaw part clamp rivets when closed; the movable seat is movably provided with crank arms which are in one-to-one correspondence with the upper jaw part and the lower jaw part, supports the opening and closing of the upper jaw part and the lower jaw part, and is respectively provided with a movable guide piece; the fixed guide part is provided with guide grooves corresponding to the movable guide parts one by one, and when the movable guide parts move forwards and backwards, the upper and lower displacement of the movable guide parts is guided by the guide grooves, and the track of the movable guide parts is changed to realize the opening, closing and self-locking of the upper jaw part and the lower jaw part. Through the mode, the gun head self-locking opening and closing mechanism of the blind rivet gun disclosed by the invention has the advantages that the displacement of the movable guide piece is guided by the guide groove, the track of the movable guide piece is changed, so that the opening and closing and self-locking of the upper jaw part and the lower jaw part are realized, the clamping force of the upper jaw part and the lower jaw part on rivets is ensured, and the problem of rivet dropping is avoided.
Description
Technical Field
The invention relates to the technical field of blind rivet guns, in particular to a gun head self-locking opening and closing mechanism of a blind rivet gun.
Background
The blind rivet gun is also called a rivet gun, and is a tool for carrying out blind rivet on rivets. When the blind rivet gun is operated, the rivet is clamped by closing the upper jaw and the lower jaw, then the blind rivet can be pulled, and finally the rivet is released.
In the prior art, the closing of the upper jaw and the lower jaw is usually completed by using a tension spring, the durability of the tension spring is poor, the tension spring is easy to loosen and difficult to lock the upper jaw and the lower jaw after being used for a long time, the tension spring is easy to break and needs frequent maintenance, in addition, the tension spring is small in force, the upper jaw and the lower jaw are easy to be closed incompletely, the nail falling phenomenon is caused, the normal construction is influenced, and the working efficiency is low.
Disclosure of Invention
The invention mainly solves the technical problem of providing a gun head self-locking opening and closing mechanism of a blind rivet gun, which realizes the guiding and self-locking of the opening and closing of the gun head and ensures enough clamping force.
In order to solve the technical problems, the invention adopts a technical scheme that: the utility model provides a rifle head auto-lock of blind rivet rifle opens and shuts mechanism, includes: the gun head comprises an upper jaw part and a lower jaw part, and the rivet feeding and clamping are carried out when the upper jaw part and the lower jaw part are closed;
the movable seat is movably provided with crank arms which are in one-to-one correspondence with the upper jaw part and the lower jaw part, supports the opening and closing of the upper jaw part and the lower jaw part, and is respectively provided with a movable guide piece;
the fixed guide part is provided with guide grooves corresponding to the movable guide parts one by one, and when the movable guide parts move forwards and backwards, the upper and lower displacement of the movable guide parts is guided by the guide grooves, and the track of the movable guide parts is changed to realize the opening, closing and self-locking of the upper jaw part and the lower jaw part.
In a preferred embodiment of the invention, the crank arm comprises a first L-shaped bent rod and a second L-shaped bent rod, the front parts of the first L-shaped bent rod and the second L-shaped bent rod are in crossed pin joint on the movable seat, the lower jaw part is arranged at the front end of the first L-shaped bent rod, and the upper jaw part is arranged at the front end of the second L-shaped bent rod.
In a preferred embodiment of the present invention, the telescopic device further comprises a telescopic member for driving the movable base to move back and forth, and the rear parts of the first L-shaped bent rod and the second L-shaped bent rod extend along the axial direction of the telescopic member.
In a preferred embodiment of the present invention, the telescopic component is an air cylinder, a spline shaft inserted into a gun body of the blind rivet gun is arranged on the back surface of the movable seat, and a key slot corresponding to the spline shaft is arranged in the gun body of the blind rivet gun.
In a preferred embodiment of the invention, the moving guide is a bearing or a roller.
In a preferred embodiment of the present invention, the moving guide is provided outside the rear portions of the first and second L-shaped bent bars, respectively.
In a preferred embodiment of the present invention, the guide groove includes a first straight section, an arc section and a second straight section, the arc section is disposed at a rear end of the first straight section and extends obliquely outward, the second straight section is disposed at a rear end of the arc section and is parallel to the first straight section, and when the moving guide moves along the first straight section, the arc section and the second straight section, the upper jaw and the lower jaw are opened, and vice versa, the upper jaw and the lower jaw are closed.
In a preferred embodiment of the present invention, a cavity with a bottle-shaped cross section is transversely provided in the fixed guiding portion, the cavity comprises a bottle neck portion, a bottle shoulder portion and a bottle body portion which are sequentially connected, a supporting block is transversely provided in the cavity, planes are respectively provided on the upper portion and the lower portion of the supporting block, the front end of the supporting block is symmetrically provided with a chamfer arc surface which is in transition with the planes, the two first straight sections are combined to form a bottleneck portion, the planes and the side wall of the bottle body portion form a second straight section, and the chamfer arc surface and the side wall of the bottle shoulder portion form an arc section.
In a preferred embodiment of the invention, the fixed guide part is positioned on one side of the gun body of the blind rivet gun, and a cover plate extending to the upper side of the gun body is arranged on the fixed guide part.
In a preferred embodiment of the invention, a tension spring is provided between the first L-shaped bent rod end and the second L-shaped bent rod end.
The beneficial effects of the invention are as follows: the gun head self-locking opening and closing mechanism of the blind rivet gun is characterized in that a guide groove corresponding to the movable guide piece is specially designed, the guide groove is used for guiding the displacement of the movable guide piece, the track of the guide groove is changed to realize opening and closing of the upper jaw part and the lower jaw part, self locking is realized, the upper jaw part and the lower jaw part are closed at the moment and belong to hard connection, the clamping force of the upper jaw part and the lower jaw part on rivets is ensured, the problem of rivet dropping is avoided, and the construction stability and the working efficiency are improved.
Drawings
For a clearer description of the technical solutions of the embodiments of the present invention, the drawings that are needed in the description of the embodiments will be briefly introduced below, it being obvious that the drawings in the description below are only some embodiments of the present invention, and that other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art, wherein:
FIG. 1 is a schematic view of a gun head self-locking and opening and closing mechanism of a blind rivet gun according to a preferred embodiment of the present invention;
FIG. 2 is a schematic view of the rear structure of the fixed guide of FIG. 1;
FIG. 3 is an exploded view of the main structure of a preferred embodiment of a gun head self-locking and opening and closing mechanism of a blind rivet gun of the present invention;
FIG. 4 is a schematic view of a self-locking mechanism of the gun head of the blind rivet gun according to the present invention;
FIG. 5 is a schematic view of a self-locking mechanism of a blind rivet gun according to a preferred embodiment of the present invention.
Description of the embodiments
The following description of the technical solutions in the embodiments of the present invention will be clear and complete, and it is obvious that the described embodiments 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.
Referring to fig. 1 to 5, an embodiment of the present invention includes:
the gun head self-locking opening and closing mechanism of the blind rivet gun shown in fig. 1 comprises: the gun head, the movable seat 5 and the fixed guide part 3, wherein the gun head comprises an upper jaw part 8 and a lower jaw part 7, and the rivet is clamped when the upper jaw part 8 and the lower jaw part 7 are closed.
The fixed guide part 3 is positioned on one side of the gun body 11 of the blind rivet gun and can be fixed by screws, the cover plate 10 extending to the upper part of the gun body 11 is arranged on the fixed guide part 3, and the safety protection device is convenient to install and operate by screws. In order to realize the forward and backward movement of the movable seat 5, the telescopic component 12 needs to be installed on the blind rivet gun, the telescopic component 12 is an air cylinder, compressed air is adopted for driving, and telescopic control is carried out through a valve, so that the operation is relatively simple. The spline shaft 16 inserted into the gun body 11 of the blind rivet gun is arranged on the back surface of the movable seat 5, and the spline grooves corresponding to the spline shaft 16 are arranged in the gun body 11 of the blind rivet gun, so that torsion of the movable seat 5 is avoided, and the axial movement stability of the movable seat 5 is improved.
As shown in fig. 3, the movable base 5 is movably provided with a crank arm corresponding to the upper jaw 8 and the lower jaw 7 one by one, and supports the opening and closing of the upper jaw 8 and the lower jaw 7, and the crank arm is provided with a movable guide 14, respectively, and the opening and closing guide of the upper jaw 8 and the lower jaw 7 is performed by the movable guide. The crank arm comprises a first L-shaped bent rod 1 and a second L-shaped bent rod 2, the front parts of the first L-shaped bent rod 1 and the second L-shaped bent rod 2 are in crossed pin joint on a movable seat 5, the movable connection is carried out by utilizing a pin shaft 4, the pin shaft 4 is a certain distance away from the front ends of the first L-shaped bent rod 1 and the second L-shaped bent rod 2, the action of an upper jaw 8 and a lower jaw 7 is facilitated, the lower jaw 7 is arranged at the front end of the first L-shaped bent rod 1, the upper jaw 8 is provided with the front end of the second L-shaped bent rod 2, and the upper jaw 8 and the lower jaw 7 are driven by utilizing the scissor structure of the first L-shaped bent rod 1 and the second L-shaped bent rod 2.
The rear parts of the first L-shaped bent rod 1 and the second L-shaped bent rod 2 extend in the axial direction of the telescopic member 12, so that the first L-shaped bent rod 1 and the second L-shaped bent rod 2 axially move along with the telescopic of the telescopic member 12. The movable guide 14 is respectively arranged on the outer sides of the rear parts of the first L-shaped bent rod 1 and the second L-shaped bent rod 2, and the movable guide 14 is a bearing or a roller, so that the friction resistance is small.
Guide grooves corresponding to the movable guide pieces 14 one by one are symmetrically arranged on the back of the movable seat 5, and when the movable guide pieces 14 move forwards and backwards, the upper and lower displacement of the movable guide pieces is guided by the guide grooves, and the track of the movable guide pieces is changed, so that the upper jaw 8 and the lower jaw 7 can be opened and closed and self-locked.
As shown in fig. 2, the guide groove includes a first straight section 33, an arc section 32 and a second straight section 31, the arc section 32 is disposed at the rear end of the first straight section 33 and extends obliquely outwards, the second straight section 31 is disposed at the rear end of the arc section 32 and is parallel to the first straight section 33, when the moving guide 14 moves along the directions of the first straight section 33, the arc section 32 and the second straight section 31, the upper jaw 8 and the lower jaw 7 are opened, otherwise, the upper jaw 8 and the lower jaw 7 are closed, and the first straight section 33 is utilized to realize self-locking when closed, as shown in fig. 4 and 5.
In the concrete processing process, the cavity with the bottle-shaped cross section is transversely arranged in the fixed guide part 3, the cavity comprises a bottleneck part 34, a bottle shoulder part 36 and a bottle body part 35 which are sequentially connected, a support block 13 is transversely arranged in the cavity, the support block 13 is fixed in the fixed guide part 3 by bolts, a tension spring 6 is arranged between the tail end of the first L-shaped bent rod 1 and the tail end of the second L-shaped bent rod 2, so that the upper jaw part 8 and the lower jaw part 7 keep a closing restoring force, in the operation process, the friction and impact between the movable guide part 14 and the support block 13 are large, the support block 13 needs to be maintained and replaced, the support block 13 fixed by the bolts is convenient to install and detach, and the maintenance cost is reduced.
The support block 13 is provided with the plane 131 from top to bottom respectively, support block 13 front end symmetry be provided with the chamfer cambered surface 132 of plane 131 transition, two first straight sections 33 merge into bottleneck portion, and plane 131 and the lateral wall of body portion 3 form second straight section 31, and chamfer cambered surface 132 and the lateral wall of shoulder portion 36 form arc section 32, and processing is more convenient.
The installation of extension spring 6 is more convenient, and first L shape bent rod 1 lower part and second L shape bent rod 2 upper portion are provided with recess 15 respectively, are provided with the through-hole that corresponds with extension spring 6 in the recess 15, and extension spring 6 both ends are provided with the pull rod 9 that is arranged in recess 15, and the pull rod 9 middle part is provided with the ring channel that corresponds with extension spring 6 tip, and it is convenient to be connected with extension spring 6 tip, and it is also more convenient to dismantle, promotes maintenance convenience.
In summary, according to the gun head self-locking opening and closing mechanism of the blind rivet gun, disclosed by the invention, the opening and closing and self-locking of the upper jaw part 8 and the lower jaw part 7 in the forward and backward moving process are realized through the cooperation of the movable guide piece and the guide groove, so that the clamping force on rivets is ensured, the falling problem of the rivets in the operating process is avoided, and the construction stability is greatly improved.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes or direct or indirect application in other related arts are included in the scope of the present invention.
Claims (8)
1. The utility model provides a rifle head auto-lock of blind rivet rifle opens and shuts mechanism installs on the blind rivet rifle, its characterized in that includes:
the gun head comprises an upper jaw part and a lower jaw part, and the upper jaw part and the lower jaw part clamp rivets when closed;
the movable seat is movably provided with crank arms which are in one-to-one correspondence with the upper jaw part and the lower jaw part, supports the opening and closing of the upper jaw part and the lower jaw part, and is respectively provided with a movable guide piece;
the fixed guide part is provided with guide grooves corresponding to the movable guide parts one by one, and when the movable guide parts move forwards and backwards, the upper and lower displacement of the movable guide parts is guided by the guide grooves, and the track of the movable guide parts is changed to realize the opening, closing and self-locking of the upper jaw part and the lower jaw part;
the guide way comprises a first straight section, an arc section and a second straight section respectively, wherein the arc section is arranged at the rear end of the first straight section and extends obliquely outwards, the second straight section is arranged at the rear end of the arc section and is parallel to the first straight section, when moving along the directions of the first straight section, the arc section and the second straight section, the movable guide piece realizes the opening of the upper jaw part and the lower jaw part, otherwise, the upper jaw part and the lower jaw part are closed, a cavity with a bottle-shaped section is transversely arranged in the fixed guide part, the cavity comprises a bottle neck part, a bottle shoulder part and a bottle body part which are sequentially connected, a supporting block is transversely arranged in the cavity, planes are respectively arranged on the upper portion and the lower portion of the supporting block, the front end of the supporting block is symmetrically provided with a chamfer cambered surface which is in transition with the planes, the two first straight sections are combined into a bottleneck part, the planes form the second straight section with the side wall of the bottle body part, and the chamfer cambered surface forms the arc section with the side wall of the bottle shoulder part.
2. The self-locking and opening-closing mechanism for a gun head of a blind rivet gun according to claim 1, wherein the crank arm comprises a first L-shaped bent rod and a second L-shaped bent rod, the front parts of the first L-shaped bent rod and the second L-shaped bent rod are in crossed pin joint with the movable seat, the lower jaw part is arranged at the front end of the first L-shaped bent rod, and the upper jaw part is arranged at the front end of the second L-shaped bent rod.
3. The self-locking and opening and closing mechanism for a gun head of a blind rivet gun according to claim 2, further comprising a telescopic member for driving the moving seat to move forward and backward, wherein rear portions of the first L-shaped bent rod and the second L-shaped bent rod extend in an axial direction of the telescopic member.
4. The self-locking and opening and closing mechanism for the gun head of the blind rivet gun according to claim 3, wherein the telescopic component is an air cylinder, a spline shaft which is inserted into a gun body of the blind rivet gun is arranged on the back surface of the movable seat, and a key groove corresponding to the spline shaft is arranged in the gun body of the blind rivet gun.
5. The self-locking and opening-closing mechanism for a gun head of a blind rivet gun according to claim 1, wherein the moving guide is a bearing or a roller.
6. A gun head self-locking and opening-closing mechanism of a blind rivet gun according to claim 3, wherein the moving guide members are respectively arranged at the rear outer sides of the first L-shaped bent rod and the second L-shaped bent rod.
7. The self-locking and opening and closing mechanism for the gun head of the blind rivet gun according to claim 1, wherein the fixed guide part is positioned on one side of the gun body of the blind rivet gun, and a cover plate extending to the upper side of the gun body is arranged on the fixed guide part.
8. The self-locking and opening and closing mechanism for a gun head of a blind rivet gun according to claim 2, wherein a tension spring is arranged between the tail end of the first L-shaped bent rod and the tail end of the second L-shaped bent rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628409.0A CN110293203B (en) | 2019-07-12 | 2019-07-12 | Gun head self-locking opening and closing mechanism of blind rivet gun |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910628409.0A CN110293203B (en) | 2019-07-12 | 2019-07-12 | Gun head self-locking opening and closing mechanism of blind rivet gun |
Publications (2)
| Publication Number | Publication Date |
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| CN110293203A CN110293203A (en) | 2019-10-01 |
| CN110293203B true CN110293203B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910628409.0A Active CN110293203B (en) | 2019-07-12 | 2019-07-12 | Gun head self-locking opening and closing mechanism of blind rivet gun |
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| CN (1) | CN110293203B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112958740B (en) * | 2021-03-05 | 2022-12-13 | 东莞市迅捷自动化设备有限公司 | Automatic nail feeding mechanism and blind rivet gun with same |
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| CN208099233U (en) * | 2018-01-24 | 2018-11-16 | 陈万福 | A kind of cartridge device of pulling rivet machine gun head |
| CN108856628A (en) * | 2017-11-28 | 2018-11-23 | 罗哥紧固系统（上海）有限公司 | A kind of integrated hand riveter for sending nail Binding mechanism |
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| CN208800741U (en) * | 2017-11-28 | 2019-04-30 | 罗哥紧固系统（上海）有限公司 | A kind of integrated hand riveter for sending nail Binding mechanism |
| CN208991681U (en) * | 2018-08-30 | 2019-06-18 | 周海军 | A kind of pulling rivet fixture and the draw riveting gun for being installed with the fixture |
| TWM580013U (en) * | 2019-01-29 | 2019-07-01 | 瀛春實業有限公司 | Filling device with guide piece and nail gun |
| CN210334208U (en) * | 2019-07-12 | 2020-04-17 | 瑞萨铆接紧固系统(苏州)有限公司 | Gun head self-locking opening and closing mechanism of nail gun |
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2019
- 2019-07-12 CN CN201910628409.0A patent/CN110293203B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN206747500U (en) * | 2017-04-05 | 2017-12-15 | 东莞市世亿自动化科技有限公司 | A kind of blind rivet machine gun head |
| CN108856628A (en) * | 2017-11-28 | 2018-11-23 | 罗哥紧固系统（上海）有限公司 | A kind of integrated hand riveter for sending nail Binding mechanism |
| CN208800741U (en) * | 2017-11-28 | 2019-04-30 | 罗哥紧固系统（上海）有限公司 | A kind of integrated hand riveter for sending nail Binding mechanism |
| CN208033548U (en) * | 2018-01-02 | 2018-11-02 | 昆山冉洲自动化科技有限公司 | Universal blind rivet pipette tips |
| CN208099233U (en) * | 2018-01-24 | 2018-11-16 | 陈万福 | A kind of cartridge device of pulling rivet machine gun head |
| CN108687297A (en) * | 2018-05-10 | 2018-10-23 | 深圳市欧力克斯科技有限公司 | A kind of automatic riveter |
| CN208146850U (en) * | 2018-05-10 | 2018-11-27 | 深圳市欧力克斯科技有限公司 | A kind of upper nailing machine structure for automatic riveter |
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| Publication number | Publication date |
|---|---|
| CN110293203A (en) | 2019-10-01 |
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