CN215614793U

CN215614793U - Rivet punching press mechanism

Info

Publication number: CN215614793U
Application number: CN202121990658.3U
Authority: CN
Inventors: 陆迎东; 华夏; 胡枫; 陶诗海
Original assignee: Deconwell Suzhou Intelligent Technology Co ltd
Current assignee: Deconwell Suzhou Intelligent Technology Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-01-25
Anticipated expiration: 2031-08-23

Abstract

The utility model relates to the technical field of rivet tools, and discloses a rivet punching mechanism which comprises a sleeve, a feeding guide sleeve, a nozzle sleeve, a loosening assembly and a punching part, wherein the feeding guide sleeve is sleeved with the nozzle sleeve; the relaxation assembly is connected to the outer wall of the punch sleeve, and the relaxation assembly is configured to block/release the rivet from punching out of the punch sleeve; the punch is coupled to the sleeve and configured to drive the slack assembly to expand and punch a rivet. Through setting up the subassembly that relaxes, utilize the stamping workpiece to order about the subassembly that relaxes and strike the rivet when open, make the rivet smoothly rush out the export of die sleeve pipe, and at the punching out in-process, the die sleeve pipe can not cause the scotch to the rivet to the quality by the riveting piece has been ensured.

Description

Rivet punching press mechanism

Technical Field

The utility model relates to the technical field of rivet punching mechanisms, in particular to a rivet punching mechanism.

Background

The rivet is a part which is riveted by utilizing self deformation or interference connection of the riveted part in riveting, and is riveted by utilizing the interference of the rivet and a lock body hole.

At present, a rivet gun is generally adopted as a tool for riveting rivets, and the existing rivet gun has more types, but can be generally divided into manual and pneumatic types. The manual riveting gun has the advantages of simple structure and low cost, is generally used for riveting operation with small workload, and is too laborious to use and too low in working efficiency if riveting operation with large workload is carried out; the pneumatic riveting gun has the advantages of labor saving and high working efficiency, and is suitable for large-batch riveting operation.

The existing pneumatic riveting gun is mostly of a connecting rod type structure and comprises a handle and a pull rod, the handle, the pull rod and a connecting rod form a plane connecting rod structure, the pull rod is retracted through the connecting rod when the pneumatic riveting gun is used, and the pull rod impacts out rivets through a clamping opening. It can be seen that when impacting a rivet, the existing starting rivet gun directly impacts the rivet, and the clamping opening can scratch the rivet, thereby affecting the quality of the riveted part.

In view of the above-mentioned drawbacks, the present designer is actively making research and innovation to create a new rivet punching mechanism, so that the rivet punching mechanism has more industrial utility value.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a rivet punching mechanism which can avoid scratching a rivet when the rivet is impacted.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a rivet punching press mechanism, includes sleeve, feeding guide pin bushing, die nozzle sleeve pipe, lax subassembly and stamping workpiece, wherein:

the feeding guide sleeve is sleeved with the punching nozzle sleeve, the punching nozzle sleeve is connected with the bottom of the sleeve and communicated with the sleeve, and the rivet enters from the feeding guide sleeve and is punched out from the punching nozzle sleeve;

the relaxation assembly is connected to the outer wall of the punch sleeve, and the relaxation assembly is configured to block/release the rivet from punching out of the punch sleeve;

the punch is coupled to the sleeve and configured to drive the slack assembly to expand and punch a rivet.

As a preferable mode of the above rivet punching mechanism, the feeding guide sleeve is provided with an inclined feeding hole, and the side wall of the punch sleeve is provided with an inclined hole communicated with the inside of the punch sleeve, and the inclined hole is configured to allow the rivet to pass through and guide to the outlet of the punch sleeve.

As a preferred scheme of the rivet punching mechanism, the punching part comprises an air cylinder and a punching rod connected with an output end of the air cylinder, the punching rod is arranged in the sleeve and can extend into the nozzle sleeve, and the end part of the punching rod punching the rivet is gradually narrowed.

As a preferable scheme of the rivet punching mechanism, the sleeve side wall is further provided with an operating member for controlling the cylinder to start and stop, and the operating member comprises a handle rotatably connected with the sleeve side wall, a microswitch installed on the sleeve side wall and an elastic sheet installed on the handle.

As a preferable scheme of the above rivet punching mechanism, the loosening assembly includes two clamping pieces and two hoops, and the two clamping pieces are respectively connected to two opposite side walls of the punch nozzle sleeve and extend into the outlet of the punch nozzle sleeve; the two hoops are flexible rings and are configured to hoop the two clamping sheets on the nozzle sleeve; the punching rod enters/exits the punch sleeve and can drive the two clamping pieces to be away from/close to each other.

As a preferable scheme of the rivet punching mechanism, the two clamping pieces are provided with protrusions, the two protrusions are inserted into the punch nozzle sleeve, the free ends of the two clamping pieces are provided with bending portions inserted into the outlet of the punch nozzle sleeve, and the punching rod can abut against the protrusions in the process of entering the punch nozzle sleeve.

In a preferred embodiment of the rivet punching mechanism, the boss is rotatably connected with a ball, and the distance between the two balls is greater than the diameter of the narrowest part of the end of the punching rod and smaller than the diameter of the widest part of the end of the punching rod.

The utility model has the beneficial effects that: through setting up the subassembly that relaxes, utilize the stamping workpiece to order about the subassembly that relaxes and strike the rivet when open, make the rivet smoothly rush out the export of die sleeve pipe, and at the punching out in-process, the die sleeve pipe can not cause the scotch to the rivet to the quality by the riveting piece has been ensured.

Drawings

FIG. 1 is a schematic structural diagram of a rivet punching mechanism provided in accordance with an embodiment of the present invention;

FIG. 2 is a front view of a rivet stamping mechanism provided in accordance with an embodiment of the present invention;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a schematic structural view of the rivet punching mechanism according to the embodiment of the present invention with the feeding guide sleeve and the nozzle sleeve removed;

fig. 5 is an enlarged view at B in fig. 4.

In the figure: 310-sleeve, 320-feed guide sleeve, 321-feed inlet, 330-nozzle sleeve, 341-clamping piece, 3411-protrusion, 3412-bending part, 342-hoop, 343-ball, 350 stamping part, 351-cylinder, 352-stamping rod, 360-operating control piece, 361-handle, 362-microswitch, 363-shrapnel and 500-rivet.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. 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.

As shown in fig. 1-5, the rivet punching mechanism of the present invention includes a sleeve 310, a feed guide 320, a die sleeve 330, a loosening assembly, and a punch 350. The feeding guide sleeve 320 is sleeved with the punch sleeve 330, the punch sleeve 330 is connected with the bottom of the sleeve 310 and communicated with the sleeve 310, and the rivet 500 enters from the feeding guide sleeve 320 and is punched out from the punch sleeve 330; a slack assembly is attached to the outer wall of the punch sleeve 330, the slack assembly configured to block/release the rivet 500 from punching out of the punch sleeve 330; a punch 350 is coupled to the sleeve 310, the punch 350 being configured to drive the slack assembly to open and punch the rivet 500. By arranging the loosening assembly, the rivet 500 is impacted while the loosening assembly is driven to be opened by the stamping part 350, so that the rivet 500 is smoothly punched out of the outlet of the punch sleeve 330, and the punch sleeve 330 cannot scratch the rivet 500 in the punching process, thereby ensuring the quality of the riveted part.

In order to make the rivet 500 enter the punch sleeve 330 from the feed guide 320, the feed guide 320 of the present invention is provided with an inclined feed port 321, and the side wall of the punch sleeve 330 is provided with an inclined hole communicating with the inside thereof, the inclined hole being configured to allow the rivet 500 to pass therethrough and be guided to the outlet of the punch sleeve 330. The rivet 500 enters the inclined hole from the feeding hole 321, and then falls to the outlet of the punch sleeve 330, at this time, the loosening assembly is not opened, the rivet 500 stays at the outlet of the punch sleeve 330, then the stamping part 350 is started to drive the loosening assembly to open and impact the rivet 500, and the rivet 500 can be punched out of the outlet of the punch sleeve 330.

Specifically, the stamping part 350 of the present invention includes a cylinder 351 and a stamping rod 352 connected to an output end of the cylinder 351, the stamping rod 352 is disposed in the sleeve 310 and can extend into the nozzle sleeve 330, and an end of the stamping rod 352 stamping the rivet 500 is gradually narrowed. The cylinder 351 can drive the punching rod 352 to move back and forth along the axial direction of the sleeve 310, and the punching rod 352 utilizes the structure that the end part of the punching rod 352 is gradually narrowed to expand the loose assembly and simultaneously impact the rivet 500 in the process of moving towards the outlet of the punch sleeve 330. The loosening assembly comprises two clamping pieces 341 and two hoops 342, wherein the two clamping pieces 341 are respectively connected with two opposite side walls of the nozzle sleeve 330 and extend into the outlet of the nozzle sleeve 330; the two bands 342 are flexible bands, the two bands 342 being configured to band the two gripping tabs 341 over the nozzle sleeve 330; the punch rod 352 into/out of the die sleeve 330 can bring the two holding pieces 341 away from/close to each other.

In order to make the gradually narrowed end of the punching rod 352 can open the loose component, the two clamping pieces 341 in the utility model are provided with protrusions 3411, the two protrusions 3411 are inserted into the punch sleeve 330, the free ends of the two clamping pieces 341 are provided with bending parts 3412 inserted into the outlet of the punch sleeve 330, and the punching rod 352 can support the protrusions 3411 in the process of entering the punch sleeve 330. The bent portion 3412 is provided to catch the rivet 500 when the loose component is not opened, and to release the restriction of the rivet 500 after the loose component is opened. In order to avoid the punch rod 352 from being scratched when abutting against the protrusion 3411, the present invention connects the protrusion 3411 with the balls 343 in a rotating manner, and the distance between the two balls 343 is larger than the diameter of the narrowest part of the end of the punch rod 352 and smaller than the diameter of the widest part of the end of the punch rod 352. Thus, the punch rod 352 is in rolling contact with the balls 343, and the balls 343 do not scratch the punch rod 352.

In order to facilitate manual control of the rhythm of the impact rivet 500, the side wall of the sleeve 310 is further provided with an operating member 360 for controlling the start and stop of the cylinder 351, the operating member 360 comprises a handle 361 rotatably connected with the side wall of the sleeve 310, a microswitch 362 mounted on the side wall of the sleeve 310 and an elastic sheet 363 mounted on the handle 361, and the elastic sheet 363 is electrically connected with the cylinder 351. Pressing the handle 361 can make the elastic sheet 363 contact with the microswitch 362, at the moment, the cylinder 351 is powered on and started, the rivet 500 is impacted, the handle 361 is loosened, the handle 361 is reset, the elastic sheet 363 is separated from the microswitch 362, and the cylinder 351 is powered off and stops working.

In conclusion, the nail punching mechanism avoids scratching the rivet when impacting the rivet, and ensures the quality of the riveted part.

The technical principle of the present invention is described above in connection with specific embodiments. The description is made for the purpose of illustrating the principles of the utility model and should not be construed in any way as limiting the scope of the utility model. Based on the explanations herein, those skilled in the art will be able to conceive of other embodiments of the present invention without inventive effort, which would fall within the scope of the present invention.

Claims

1. A rivet punching press mechanism, characterized by, includes sleeve (310), feed guide pin bushing (320), die nozzle sleeve (330), lax subassembly and stamping workpiece (350), wherein:

the feeding guide sleeve (320) is sleeved with the punching nozzle sleeve (330), the punching nozzle sleeve (330) is connected with the bottom of the sleeve (310) and communicated with the sleeve (310), and the rivet (500) enters from the feeding guide sleeve (320) and is punched out of the punching nozzle sleeve (330);

the slack assembly is connected to the outer wall of the nozzle sleeve (330), the slack assembly configured to block/release a rivet (500) from punching out of the nozzle sleeve (330);

the punch (350) is coupled to the sleeve (310), the punch (350) configured to drive the slack assembly to open and punch a rivet (500).

2. Rivet stamping mechanism according to claim 1, characterized in that the feed guide sleeve (320) is provided with an inclined feed opening (321), the side wall of the die sleeve (330) is provided with an inclined hole communicating with the interior thereof, the inclined hole is configured to allow the rivet (500) to pass through and be guided to the outlet of the die sleeve (330).

3. Rivet stamping mechanism according to claim 1, characterized in that the stamping (350) comprises a cylinder (351) and a stamping rod (352) connected to the output end of the cylinder (351), the stamping rod (352) being disposed within the sleeve (310) and being capable of extending into the nozzle sleeve (330), and the end of the stamping rod (352) stamping the rivet (500) being tapered.

4. The rivet punching mechanism according to claim 3, characterized in that an operating member (360) for controlling the start and stop of the cylinder (351) is further arranged on the side wall of the sleeve (310), and the operating member (360) comprises a handle (361) rotatably connected with the side wall of the sleeve (310), a microswitch (362) mounted on the side wall of the sleeve (310) and a spring plate (363) mounted on the handle (361).

5. The rivet punching mechanism according to claim 3, characterized in that the loosening assembly comprises two holding pieces (341) and two hoops (342), the two holding pieces (341) are respectively connected with two opposite side walls of the nozzle sleeve (330) and extend into the outlet of the nozzle sleeve (330); the two hoops (342) are flexible rings, and the two hoops (342) are configured to hoop the two clamping sheets (341) on the punch sleeve (330); the punching rod (352) enters/exits the nozzle sleeve (330) to drive the two clamping sheets (341) to move away from/close to each other.

6. Rivet stamping mechanism according to claim 5, characterized in that both clamping pieces (341) are provided with protrusions (3411), both protrusions (3411) are inserted into the die sleeve (330), and the free ends of both clamping pieces (341) are provided with bent portions (3412) inserted into the outlet of the die sleeve (330), the stamping rod (352) being capable of holding the protrusions (3411) during the process of entering the die sleeve (330).

7. Rivet stamping mechanism according to claim 6, characterized in that the protrusion (3411) is rotatably connected with balls (343), and the distance between two balls (343) is larger than the diameter of the narrowest part of the end of the stamping rod (352) and smaller than the diameter of the widest part of the end of the stamping rod (352).