阅读说明：本技术 一种拆卸凸头铆钉的辅助工具及拆卸凸头铆钉的方法 (Auxiliary tool for disassembling raised head rivet and method for disassembling raised head rivet ) 是由 苟德森 刘良存 于 2020-10-27 设计创作，主要内容包括：本发明涉及机械制造领域,具体是指一种拆卸凸头铆钉的辅助工具及拆卸凸头铆钉的方法,包括中心圆柱,以及若干径向贯穿中心圆柱、并与中心圆柱固定连接的套顶圆柱,每个套顶圆柱两端的端面上都分别开设有一个与凸头铆钉的钉盖形状对应的仿形槽；套顶圆柱的内部同轴开设有圆柱通孔,套顶圆柱的两端分别径向贯穿设置有排屑孔。本技术方案确保高效率拆卸凸头铆钉的同时,能够提高打点精确度,进一步提高拆卸凸头铆钉的可靠性,且本发明结构简单紧凑、通用性强。(The invention relates to the field of mechanical manufacturing, in particular to an auxiliary tool for disassembling a raised head rivet and a method for disassembling the raised head rivet, wherein the auxiliary tool comprises a central cylinder and a plurality of sleeve top cylinders which radially penetrate through the central cylinder and are fixedly connected with the central cylinder, and the end surfaces of two ends of each sleeve top cylinder are respectively provided with a profiling groove corresponding to the shape of a rivet cover of the raised head rivet; the cylindrical through-hole has been seted up to the cover top cylindrical inside coaxial, and the cover top cylindrical both ends are radially run through respectively and are provided with the chip removal hole. According to the technical scheme, the dotting accuracy can be improved while the raised head rivet is guaranteed to be efficiently detached, the reliability of detaching the raised head rivet is further improved, and the rivet detaching device is simple and compact in structure and high in universality.)

1. An appurtenance of disassembling a raised-head rivet, characterized in that: the device comprises a central cylinder (1) and a plurality of sleeve top cylinders (2) which radially penetrate through the central cylinder (1) and are fixedly connected with the central cylinder (1), and the central axes of all the sleeve top cylinders (2) are intersected at one point; the end faces of two ends of each sleeve top cylinder (2) are respectively provided with an imitated groove (3) corresponding to the shape of a nail cover of the raised head rivet (9), and the inside of each sleeve top cylinder (2) is coaxially provided with a cylinder through hole (5).

2. An auxiliary tool for removing raised-head rivets, as recited in claim 1, wherein: the sleeve top cylinder (2) and the central cylinder (1) are integrally arranged.

3. An auxiliary tool for removing raised-head rivets, as recited in claim 1, wherein: on the central cylinder (1), radially run through and be provided with four cover top cylinders (2) that length is the same, and the diameter of all cover top cylinders (2) equals.

4. An auxiliary tool for removing raised-head rivets, as recited in claim 1, wherein: the shapes and/or the sizes of any two contour grooves (3) are different.

5. An auxiliary tool for removing raised rivets as recited in claim 4, further comprising: the end face of the central cylinder (1) is marked with model marks (7) which correspond to the profiling grooves (3) one by one, and the model marks (7) contain specification and size information of the profiling grooves (3).

6. An auxiliary tool for removing raised-head rivets, as recited in claim 1, wherein: and a chamfer (4) is arranged at the end part of the sleeve top cylinder (2) along the circumferential direction of the profile groove (3).

7. An auxiliary tool for removing raised-head rivets, as recited in claim 1, wherein: two ends of the sleeve top cylinder (2) are respectively provided with a chip removal hole (6) in a radial penetrating manner.

8. A method of removing a raised-head rivet, comprising: the method comprises the steps of placing an auxiliary tool, punching a nail cover and removing the nail cover;

the auxiliary tool is placed, the matched contour groove (3) is selected according to the specification and the size of the raised head rivet (9) to be disassembled, the contour groove (3) is aligned to the nail cover of the raised head rivet (9) to be disassembled, and the auxiliary tool is pressed by applying force, so that the contour groove (3) tightly presses the nail cover of the raised head rivet (9);

dotting the nail cover, inserting a drill bit (8) of a drilling tool into the cylindrical through hole (5) from one end, far away from the raised head rivet (9) to be disassembled, of the corresponding sleeve top cylindrical column (2) until the drill bit (8) reaches the top of the nail cover of the raised head rivet (9) to be disassembled along the cylindrical through hole (5), starting the drilling tool, and closing the drilling tool after a groove is machined in a top cover of the raised head rivet (9);

removing the nail cover, moving the drilling tool and the auxiliary tool away from the raised head rivet (9), extracting the drill bit (8) from the cylindrical through hole (5) of the auxiliary tool, then placing the end part of the drill bit (8) in the groove, coaxially placing the drill bit (8) and the raised head rivet (9), starting the drilling tool, and processing the groove into a through groove which axially penetrates through the nail cover so as to reduce the connection strength between the nail cover and the nail rod; and then the nail cover and the nail rod are sequentially detached.

9. A method of removing a raised-head rivet according to claim 8, wherein: the depth of the groove is N, and N is more than or equal to 0.1mm and less than or equal to 5 mm.

10. A method of removing a raised-head rivet according to claim 9, wherein: the depth N =1.5mm of the groove.

Technical Field

The invention relates to the field of mechanical manufacturing, in particular to an auxiliary tool for disassembling a raised head rivet and a method for disassembling the raised head rivet.

Background

In the process of airplane assembly, a large number of rivets are needed to assemble and connect parts of an airplane, and because the rivets are manually riveted, part of the rivets do not meet riveting requirements and need to be disassembled and replaced. The rivet types used in the rivet dismounting process comprise a semi-circular head rivet, a basin head rivet and a flat head rivet. The rivet dismounting process comprises the following steps: firstly, drilling a point with the depth of about 0.5-1mm at the central axis of the rivet cover by using a drill bit, then drilling a hole with the depth of the rivet cover on the rivet cover by using the drill bit which is one-level smaller than the rivet, then taking the rivet cover off the rivet rod, finally knocking out the rivet rod, and completing the disassembly of one rivet. The first step is that the skill requirement for drilling points at the axis position of the rivet cover is very high, and a drill bit is very easy to slip in the dismounting process to drill and damage parts, so that more serious faults are caused, particularly a half-round head rivet, which is a drilling point on an outer spherical surface, so that the drill bit is easier to run. The technical scheme that a simple and reliable solution is not available in the prior art, the dotting difficulty in rivet dismounting can be effectively reduced, and the reliability and efficiency of rivet dismounting are improved.

Disclosure of Invention

According to the development needs in the field of mechanical manufacturing at present, the invention provides an auxiliary tool for disassembling a raised head rivet and a method for disassembling the raised head rivet, so that the raised head rivet can be disassembled efficiently, the dotting accuracy can be improved, the reliability of disassembling the raised head rivet can be further improved, and the auxiliary tool is simple and compact in structure and high in universality.

The invention is realized by the following technical scheme:

an appurtenance of disassembling a raised-head rivet, characterized in that: the device comprises a central cylinder and a plurality of sleeve top cylinders which radially penetrate through the central cylinder and are fixedly connected with the central cylinder, and the central axes of all the sleeve top cylinders are intersected at one point; the end faces of two ends of each sleeve top cylinder are respectively provided with an imitated groove corresponding to the shape of the nail cover of the raised head rivet, and the inside of each sleeve top cylinder is coaxially provided with a cylindrical through hole. In this technical scheme, central cylinder has increased this technical scheme's surface area, makes this technical scheme be convenient for hold, and it is more convenient to use, and central cylinder sets up in the cylindrical outside of cover top, increases the fastness between the cover top cylinder more than two, further increases the stability and the reliability of this technical scheme structure, and is further, and this technical scheme can adopt metal materials such as stainless steel to make.

Preferably, the end of the sleeve top cylinder is provided with a chamfer along the circumferential direction of the contour groove, the chamfer refers to the processing of cutting the edge of the workpiece into a certain inclined plane, the chamfer is used for removing burrs generated by machining on the part and is generally made at the end of the part for facilitating the assembly of the part, and the chamfer is arranged at the end of the sleeve top cylinder in the technical scheme so that the technical scheme is better matched with raised heads and rivets on two parts.

Preferably, the two ends of the sleeve top cylinder are respectively provided with a chip removal hole in a radial penetrating manner. The chip removal hole can remove chips appearing in the cylindrical through hole so as to ensure smooth and accurate dotting.

Preferably, the sleeve top cylinder and the central cylinder are integrally arranged, so that the integration degree of the technical scheme is increased, and the structural stability of the technical scheme is ensured.

Preferably, on the center cylinder, radially run through and be provided with four cover top cylinders that length is the same, and the diameter of all cover top cylinders equals, makes this technical scheme's structure more compact to accomodate and carry.

Preferably, any two of said profile grooves are not identical in shape and/or size. Specifically, the shape and the size of the contour groove correspond to the nail cover of the raised head rivet, the shape of the contour groove corresponds to the specification of the raised head rivet, the specification comprises all raised head rivets, further the raised head rivet comprises a half-round head rivet, a basin-head rivet, a flat-head rivet and a flat-head rivet, namely, the contour groove of various specifications and/or various sizes can be contained on one auxiliary tool, specifically, the contour groove can be of various sizes of one specification or of one size of various specifications, and the universality of the technical scheme is improved.

Preferably, the end face of the central cylinder is marked with model marks in one-to-one correspondence with the profiling grooves, and the model marks contain specification and dimension information of the profiling grooves, so that the technical scheme is more convenient to use.

A method of removing a raised-head rivet, comprising: the method comprises the steps of placing an auxiliary tool, punching a nail cover and removing the nail cover;

the auxiliary tool is placed, the adaptive contour groove is selected according to the specification and the size of the raised head rivet to be disassembled, the contour groove is aligned to the nail cover of the raised head rivet to be disassembled, and the auxiliary tool is pressed by applying force, so that the contour groove tightly presses the nail cover of the raised head rivet;

dotting the nail cover, inserting a drill bit of a drilling tool into the cylindrical through hole from one end, far away from the raised head rivet to be disassembled, of the corresponding sleeve top cylindrical column until the drill bit reaches the top of the nail cover of the raised head rivet to be disassembled along the cylindrical through hole, starting the drilling tool, and closing the drilling tool after a groove is machined in a top cover of the raised head rivet; the drilling tool can be an electric drill, and further, the depth of the groove is N, and N is more than or equal to 0.1mm and less than or equal to 5 mm;

removing the nail cover, removing the drilling tool and the auxiliary tool from the raised-head rivet, drawing the drill bit out of the cylindrical through hole of the auxiliary tool, then placing the end part of the drill bit in the groove, coaxially placing the drill bit and the raised-head rivet, starting the drilling tool, and processing the groove into a through groove which axially penetrates through the nail cover so as to reduce the connection strength between the nail cover and the nail rod; and then the nail cover and the nail rod are sequentially detached. Further, in order to ensure the limiting effect of the groove on the drill bit, effectively prevent the drill bit from slipping, and simultaneously reduce the dotting time as much as possible, preferably, the depth N =1.5mm of the groove.

The beneficial effect that this technical scheme brought:

the auxiliary tool for disassembling the raised head rivet is provided based on the mode that the drilling jig is used for assisting in dotting when the raised head rivet is disassembled, the dotting accuracy can be improved while the raised head rivet is ensured to be disassembled efficiently, the problem that a drill bit slips when the rivet is disassembled can be effectively solved, the reliability of disassembling the raised head rivet is improved, and the auxiliary tool is simple and compact in structure, convenient to store and carry, convenient to use and high in universality.

Drawings

FIG. 1 is a schematic view of the state of use of the present solution;

FIG. 2 is a schematic view of the overall structure of the present embodiment;

FIG. 3 is a schematic side view of the present embodiment;

FIG. 4 is a schematic sectional front view of the present embodiment;

in the figure:

1. a central cylinder; 2. sleeving a top cylinder; 3. profiling grooves; 4. chamfering; 5. a cylindrical through hole; 6. chip removal holes; 7. a model identifier; 8. a drill bit; 9. raised-head rivets; 10. and (4) parts.

Detailed Description

The invention is further described in the following with reference to the drawings and examples, but it should not be understood that the invention is limited to the examples below, and variations and modifications in the field of the invention are intended to be included within the scope of the appended claims without departing from the spirit of the invention.

Example 1

The embodiment discloses an auxiliary tool for disassembling a raised head rivet, which is a basic embodiment of the invention and comprises a central cylinder 1 and a plurality of sleeve top cylinders 2 radially penetrating through the central cylinder 1 and fixedly connected with the central cylinder 1, wherein the central axes of all the sleeve top cylinders 2 are intersected at one point; the end surfaces of the two ends of each sleeve top cylinder 2 are respectively provided with an imitated groove 3 corresponding to the shape of the nail cover of the raised head rivet 9, and the inside of each sleeve top cylinder 2 is coaxially provided with a cylinder through hole 5.

In the practical use process of the technical scheme, as shown in fig. 1, the corresponding contour groove 3 is selected according to the type of the raised head rivet 9 to be detached, the contour groove 3 is aligned to the nail cover of the raised head rivet 9 to be detached, the auxiliary tool is pressed by applying force, the contour groove 3 presses the nail cover of the raised head rivet 9, and then the drill bit 8 for dotting passes through the cylindrical through hole 5 to perform precise dotting on the nail cover of the raised head rivet 9, namely, a groove is processed in the middle of the top of the nail cover of the raised head rivet 9 through the drill bit. This technical scheme is based on when dismantling plush copper rivet 9, uses the mode of the supplementary dotting of jig, when guaranteeing that high efficiency dismantles plush copper rivet 9, can improve the accuracy of dotting, and the effectual problem that drill bit 8 skidded when solving the dismantlement rivet improves the reliability of dismantling plush copper rivet 9.

Example 2

The embodiment discloses an auxiliary tool for disassembling a raised head rivet, which is a preferred embodiment of the invention, namely in the embodiment 1, a sleeve top cylinder 2 and a central cylinder 1 are integrally arranged, so that the integration degree of the technical scheme is increased, and the stability of the structure of the technical scheme is ensured; furthermore, four sleeve top cylinders 2 with the same length are radially arranged on the central cylinder 1 in a penetrating manner, and the diameters of all the sleeve top cylinders 2 are equal, so that the structure of the technical scheme is more compact, and the storage and carrying are convenient; furthermore, the shapes and/or sizes of any two of the contour grooves 3 are different, so that the technical scheme has universality; furthermore, the end surface of the central cylinder 1 is marked with model marks 7 which are in one-to-one correspondence with the contour grooves 3, and the model marks 7 contain the specification and size information of the contour grooves 3, so that the technical scheme is more convenient to use; further, the end part of the sleeve top cylinder 2 is provided with a chamfer 4 along the circumferential direction of the contour groove 3 so as to facilitate the matching of an auxiliary tool with the raised head rivet and the part; furthermore, two ends of the sleeve top cylinder 2 are respectively provided with a chip removal hole 6 in a radial penetrating manner, and chip residues generated in the dotting process can be drilled out of the chip removal holes 6.

Example 3

The embodiment discloses a method for disassembling a raised head rivet 9, which is a preferred embodiment of the invention and comprises the steps of placing an auxiliary tool, knocking a nail cover and disassembling the nail cover;

placing an auxiliary tool, selecting an adaptive contour groove 3 according to the specification and the size of the raised head rivet 9 to be disassembled, aligning the contour groove 3 to the nail cover of the raised head rivet 9 to be disassembled, and applying force and pressing the auxiliary tool to enable the contour groove 3 to tightly press the nail cover of the raised head rivet 9;

dotting the nail cover, inserting a drill bit 8 of a drilling tool into the cylindrical through hole 5 from one end, far away from the raised head rivet 9 to be detached, of the corresponding sleeve top cylindrical column 2 until the drill bit 8 reaches the top of the nail cover of the raised head rivet 9 to be detached along the cylindrical through hole 5, starting the drilling tool, machining a groove in a top cover of the raised head rivet 9, and then closing the drilling tool; the drilling tool can be an electric drill, further, the depth of the groove is N, N is more than or equal to 0.5mm and less than or equal to 1mm, and further, N =1.5 mm;

removing the nail cover, removing the drilling tool and the auxiliary tool from the raised head rivet 9, extracting the drill bit 8 from the cylindrical through hole 5 of the auxiliary tool, then placing the end part of the drill bit 8 in the groove, coaxially placing the drill bit 8 and the raised head rivet 9, starting the drilling tool, and processing the groove into a through groove which axially penetrates through the nail cover so as to reduce the connection strength between the nail cover and the nail rod; and then the nail cover and the nail rod are sequentially detached.