CN218555459U

CN218555459U - Rotary riveting equipment for increasing torque

Info

Publication number: CN218555459U
Application number: CN202222622536.XU
Authority: CN
Inventors: 郑广会; 赵培振; 郑金宇
Original assignee: Shandong Boyuan Precision Machinery Co ltd
Current assignee: Shandong Boyuan Precision Machinery Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2023-03-03
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a rivet equipment soon for increasing moment of torsion, including the punching press mechanism and the rivet mechanism soon of processing the connector in proper order, punching press mechanism includes the lower bolster of fixed connector and the cope match-plate pattern relative with the lower bolster, and the cope match-plate pattern is installed the drift subassembly, and the drift subassembly includes the drift body of cylindricality and the arc arch of evenly distributed in the drift body side, and the quantity of arc arch has 1 at least, and the drift subassembly is used for punching press to the connector to form on the connector and punch a hole, and it includes circular port and the arc hole that distributes along circular port circumference to punch a hole; the spin riveting mechanism comprises a riveting head and a positioning plate for fixing the connecting piece and the connected piece, wherein the riveting head presses the connected piece penetrating through the circular hole to enable the connected piece to abut against the arc-shaped hole through plastic deformation. The connected piece is subjected to plastic deformation and is abutted against the arc-shaped hole through the spin riveting mechanism, and the torque between the connected piece and the connected piece after spin riveting is increased.

Description

Rotary riveting equipment for increasing torque

Technical Field

The utility model belongs to the technical field of rivet equipment soon, concretely relates to rivet equipment soon for increasing moment of torsion.

Background

Definition of a spin riveting machine: a riveter for riveting rivets by pressing down through an air cylinder or an oil cylinder in a rotating manner at a certain swing angle is called a spin riveter. The action mode of the spin riveting machine is divided into two parts, namely radial motion and axial motion, wherein the radial motion is rotary motion driven by a motor, and the axial motion is up-and-down linear motion driven by a cylinder or an oil cylinder. When the spin riveting machine works, the riveting head is contacted with a workpiece (rivet) to be riveted at a certain swing angle, and the swing angle of the spin riveting machine is generally 3-5 degrees. The swing riveting of the spin riveting machine is a process from quantitative change to qualitative change, which gradually extends local deformation to the whole, so that rivets or other workpieces needing riveting gradually form regular and firm whole deformation from the local deformation, thereby achieving the optimal riveting effect.

The spin riveting is a common technological method in automobile manufacturing and assembling, and has the characteristics of high connection strength, fatigue resistance, impact resistance and the like. When riveting, a hole is arranged on the connecting piece (workpiece), the connected piece (rivet) is generally a shaft, and the connecting piece and the connected piece are riveted and fixed in a shaft hole matching mode. In some situations requiring torque, such as a gear shifting rotating arm of a parking system, when a relatively large torque acts between a coupling plate (coupling member) and a driving shaft (rivet) after spin riveting, relative rotational slippage between the coupling plate (coupling member) and the driving shaft (coupled member) can easily occur, i.e. the torque between the coupling member and the coupled member riveted by the existing spin riveting equipment is low, and the equipment requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

To foretell not enough, the utility model provides a rivet equipment soon for increasing moment of torsion is protruding through set up the arc on the drift body to the punching a hole that makes to form on the connector has the arc hole. The connected piece is subjected to plastic deformation and is abutted against the arc-shaped hole through the spin riveting mechanism, and the torque between the connected piece and the connected piece after spin riveting is increased.

The utility model discloses a realize through following technical scheme:

a rivet equipment soon for increasing moment of torsion, including the punching press mechanism and rivet the mechanism soon of processing the link in proper order, the punching press mechanism includes the lower bolster of the fixed link and the cope match-plate pattern relative to lower bolster, the cope match-plate pattern is installed the drift subassembly, the drift subassembly includes the drift body of cylindricality and the arc arch of evenly distributed in the drift body side, the quantity of arc arch is at least 1, the drift subassembly is used for punching press to the link to form the punched hole on the link, the punched hole includes circular port and the arc hole along the circular port circumference distribution; the spin riveting mechanism comprises a riveting head and a positioning plate for fixing the connecting piece and the connected piece, wherein the riveting head extrudes the connected piece penetrating through the circular hole, so that the connected piece is abutted to the arc-shaped hole through plastic deformation, and the torque between the riveted connecting piece and the connected piece is increased.

Further, protruding and the drift body integrated into one piece of arc to increase protruding compactness and the fastness of being connected with the drift body of arc. The arc-shaped bulge is in a long strip shape and is fixed to the side wall of the punch body along the extending direction of the punch body, so that the arc-shaped bulge and the punch body have larger contact area, and the impact resistance of the arc-shaped bulge during punching is improved.

Further, the cross section of the arc-shaped protrusion is semicircular. The semicircular arc-shaped bulge is adopted, so that high torque is provided between the coupling piece and the coupled piece.

Further, the ratio of the radius of the circular hole to the radius of the cross-section of the arc-shaped protrusion is 5 to 20.

Further, the quantity of arc arch is 2, and the arc arch distributes to drift body both sides.

Further, the blanking hole that is located under the drift subassembly is seted up to the lower bolster, and the blanking hole can hold the drift subassembly, and the blanking hole can hold the waste material of the department of punching a hole of punching press back connector.

Furthermore, the connecting piece is a plate-shaped workpiece, the connected piece is a shaft-shaped workpiece, and the positioning plate is provided with a first positioning groove for accommodating the connected piece. The first positioning groove achieves basic positioning of the connecting piece by accommodating the connected piece and simultaneously facilitates clamping and fixing of the connecting piece by the positioning plate.

Furthermore, a second workpiece is installed on the connecting piece, and a second positioning groove matched with the second workpiece is formed in the positioning plate. The second positioning groove can basically position the connecting piece by containing a second workpiece, and meanwhile, the positioning plate can be used for clamping and fixing the connecting piece.

Furthermore, the punch assemblies are multiple and identical in structure, each punch assembly can be installed on the upper die plate in a replaceable mode, and when punching holes with different sizes need to be punched on the connecting piece, punching on the punching holes with different sizes can be achieved through changing the form of the punch assemblies.

Drawings

Fig. 1 is a schematic connection diagram illustrating an exemplary embodiment of a punching mechanism of a spin-riveting apparatus for increasing torque according to the present invention;

FIG. 2 is a schematic connection diagram illustrating an exemplary embodiment of a center spin-riveting mechanism before spin-riveting operation of the present invention;

FIG. 3 is a schematic connection diagram illustrating an exemplary embodiment of the center spin-riveting mechanism after spin-riveting operation;

FIG. 4 is a schematic connection diagram illustrating one exemplary embodiment of a coupling after completion of a spin-riveting operation of the present invention;

FIG. 5 is a side view illustrating a connection state of an exemplary embodiment of a coupling member after completion of a spin-riveting operation according to the present invention;

FIG. 6 is a front view illustrating a connection state of an exemplary embodiment of a coupling member after completion of spin riveting according to the present invention;

FIG. 7 is a front view of an exemplary embodiment of a coupling after completion of a stamping operation in accordance with the present invention;

FIG. 8 is a partially enlarged view taken at A in FIG. 7;

FIG. 9 is a schematic diagram illustrating an exemplary embodiment of a punch assembly of a spin-riveting apparatus for torque multiplication according to the present disclosure;

fig. 10 is a schematic diagram illustrating a part B of fig. 9.

Reference numerals:

1. punching press mechanism, 11, lower bolster, 111, blanking hole, 12, cope match-plate pattern, 13, punch subassembly, 131, punch head body, 132, arc arch, 2, spin rivet the mechanism, 21, the riveting head, 22, locating plate, 221, first constant head tank, 222, second constant head tank, 3, connector, 31, punch a hole, 311, circular port, 312, arc hole, 4, by the connector, 5, the second work piece.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It should be noted that the terms of orientation such as left, right, up, down, front and back in the embodiments of the present invention are only relative concepts or are based on the normal use state of the product, i.e. the traveling direction of the product, and should not be considered as limiting.

In addition, it should be noted that the dynamic terms such as "relative movement" mentioned in the embodiments of the present invention include not only a positional change but also a movement in which a state changes without a relative change in position such as rotation and rolling.

Finally, it is noted that when an element is referred to as being "on" or "disposed" to another element, it can be on the other element or intervening elements may also be present. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present.

As shown in fig. 1 to 10, the spin riveting apparatus for increasing torque includes a punching mechanism 1 and a spin riveting mechanism 2 for sequentially processing a connector 3, the punching mechanism 1 includes a lower template 11 for fixing the connector 3 and an upper template 12 opposite to the lower template 11, the upper template 12 is provided with a punch assembly 13, the punch assembly 13 includes a cylindrical punch body 131 and arc-shaped protrusions 132 uniformly distributed on the side surface of the punch body 131, the number of the arc-shaped protrusions 132 is at least 1, the punch assembly 13 is used for punching the connector 3 to form a punched hole 31 on the connector, and the punched hole 31 includes a circular hole 311 and arc-shaped holes 312 circumferentially distributed along the circular hole 311; the spin riveting mechanism 2 comprises a riveting head 21 and a positioning plate 22 for fixing the connecting piece 3 and the connected piece 4, wherein the riveting head 21 presses the connected piece 4 passing through the circular hole 311, so that the connected piece 4 is abutted to the arc-shaped hole 312 through plastic deformation, and the torque between the riveted connecting piece 3 and the connected piece 4 is increased.

In one embodiment, the coupler 3 is first mounted and fixed to the lower die plate 11 of the punching mechanism 1, and the pre-punching hole is positioned right below the punch assembly 13. And starting the punching mechanism 1, and rapidly moving the upper template 12 relative to the lower template 11 to a direction close to the lower template 11 so as to drive the punch assembly 13 to punch a hole 31 in the connecting piece 3. Since the side of the punch body 131 is protruded with the arc-shaped protrusion 132, the punched hole 31 on the coupling 3 has a circular hole 311 and an arc-shaped hole 312 around the circular hole 311. Then, the coupling 3 is taken out and the coupled 4 is inserted into the circular hole 311 of the coupling 3. Finally, the inserted connecting piece 3 and the connected piece 4 are placed on the positioning plate 22 of the spin riveting mechanism 2, the spin riveting mechanism 2 is started to enable the riveting head 21 to extrude the connected piece 4, the connected piece 4 generates plastic deformation, partial material of the connected piece 4 is filled into the arc-shaped hole 312, and the end part of the connected piece 4 generates plastic deformation and becomes flat to realize riveting of the connecting piece 3. Compared with the prior art that the connected piece 4 is subjected to plastic deformation to fill the circular hole 311 so as to realize the fixed riveting of the connected piece 3 and the connected piece 4, the connected piece 4 is subjected to plastic deformation to fill the circular hole 311 and the arc-shaped hole 312 so as to realize the fixed riveting of the connected piece 3 and the connected piece 4, and the connected piece 4 is provided with the arc-shaped hole 312, so that partial materials of the connected piece 4 are filled into the arc-shaped hole 312, the connected piece 4 after being riveted is difficult to relatively slide relative to the connected piece 3, and the torque between the connected piece 3 and the connected piece 4 is increased.

In another embodiment, when the coupling 3 itself has the circular hole 311 opened therein, the coupling 3 is mounted and fixed to the lower die plate 11 of the punching mechanism 1, and the circular hole 311 of the coupling 3 is aligned with the punch body 131 of the punch assembly 13. The punching mechanism 1 is actuated to open an arcuate aperture 312 into the coupler 3. And then the riveting operation is performed on the connecting piece 3.

Preferably, the arc-shaped protrusion 132 and the punch body 131 are integrally formed to increase the tightness and firmness of the connection of the arc-shaped protrusion 132 and the punch body 131. The arc-shaped protrusion 132 is long and fixed to the sidewall of the punch body 131 along the extending direction of the punch body 131, so that the arc-shaped protrusion 132 and the punch body 131 have a large contact area, and the impact resistance of the arc-shaped protrusion 132 during punching is improved.

In one embodiment, the arcuate projections 132 and the punch body 131 are integrally formed, and are made of high speed steel or tungsten steel. As shown in fig. 9, the arc-shaped protrusion 132 is fixed in a long strip shape along the extending direction of the punch body 131, so that when the punch assembly 13 performs a punching operation, the arc-shaped protrusion 132 has a strong impact resistance to punch the coupling plate to form the arc-shaped hole 312.

Preferably, the cross-section of the arc-shaped protrusion 132 is semicircular. The semicircular arc-shaped protrusion 132 is adopted, so that high torque is provided between the coupling member 3 and the coupled member 4.

In one embodiment, the cross section of the arc-shaped protrusion 132 is designed to be semicircular, and the arc-shaped protrusion 132 with the semicircular cross section has balanced circumferential stress, simple and reliable structure and low manufacturing cost.

Preferably, the ratio of the radius of the circular hole 311 to the radius of the cross-section of the arc-shaped protrusion 132 is 5 to 20.

In one embodiment, the coupling 3 is a flat plate with a plate thickness of 4mm. When the press mechanism 1 impacts only the circular hole 311 having a diameter of 6mm on the flat plate, the flat plate and the coupling member 4 are riveted, and the torque strength between the flat plate and the coupling member 4 after riveting is 2 N.M to 5 N.M. When the punching mechanism 1 impacts the circular hole 311 with the diameter of 6mm and the two arc-shaped holes 312 with the diameter of 0.6mm on the flat plate, namely the maximum pitch of the punching holes 31 is 6.6mm, the material of the connected part 4 is filled into the two arc-shaped holes 312 during spin-riveting forming, and the torque between the flat plate after spin-riveting and the connected part 4 is 10 N.M-13 N.M. It should be noted that the provision of the arc-shaped hole 312 on the coupling member 3 does not substantially affect the strength and function of the parts.

Preferably, the number of the arc-shaped protrusions 132 is 2, the number of the arc-shaped holes 312 correspondingly formed is also 2, and the arc-shaped protrusions 132 are distributed to both sides of the punch body 131, that is, the positions of the arc-shaped holes 312 formed are also distributed to both sides of the circular hole 311. When the number of the arcuate projections 132 is 2, the torque between the coupling member 3 and the coupled member 4 can satisfy most of the torque demands in industrial production.

In an embodiment, the number of the arc-shaped protrusions 132 is 3, the number of the arc-shaped holes 312 correspondingly formed is also 3, and the arc-shaped protrusions 132 are uniformly distributed along the circumferential direction of the punch body 131, that is, the positions of the arc-shaped holes 312 formed are also uniformly distributed along the circumferential direction of the circular hole 311. When the number of the arc projections 132 is 3, the torque between the coupling member 3 and the coupled member 4 is high, and when the coupled member 4 is twisted, there is good stability between the coupled member 4 and the coupling member 3.

Preferably, the lower die plate 11 is provided with a blanking hole 111 located right below the punch assembly 13, the blanking hole 111 can accommodate the punch assembly 13, and the blanking hole 111 can accommodate waste materials at the punching hole 31 of the punching rear connector 3.

Preferably, the coupling member 3 is a plate-shaped workpiece, the coupled member 4 is a shaft-shaped workpiece, and the positioning plate 22 has a first positioning groove 221 for accommodating the coupled member 4. The first positioning groove 221 achieves the basic positioning of the coupling member 3 by receiving the coupled member 4, and at the same time, facilitates the clamping fixation of the coupling member 3 by the positioning plate 22.

Preferably, the coupling member 3 is provided with a second workpiece 5, and the positioning plate 22 is provided with a second positioning slot 222 matched with the second workpiece 5. The second positioning slot 222 achieves the basic positioning of the coupling member 3 by receiving the second workpiece 5, and at the same time facilitates the clamping fixation of the positioning plate 22 to the coupling member 3.

In one embodiment, after the punching operation is performed on the connecting member 3, it is often necessary to mount another component, i.e., the second workpiece 5, on the connecting member 3 according to actual requirements of a factory. In order to prevent the protruding second workpiece 5 on the coupling member 3 from affecting the riveting operation of the coupling member 3, a second positioning groove 222 is formed in the positioning plate 22 to accommodate the second workpiece 5 and also to position the coupling member 3.

Preferably, the punch assemblies 13 are provided in plural and identical structures, each punch assembly 13 is replaceably mounted to the upper die plate 12, and when punching holes 31 of different sizes in the coupling member 3 is required, the punching holes 31 of different sizes can be realized by replacing the form of the punch assembly 13.

In one embodiment, when the connecting member 3 needs to be provided with the punched holes 31 with other diameters, only the punch assembly 13 on the upper die plate 12 needs to be replaced, which is convenient and quick.

When the spin riveting apparatus for increasing torque described above is employed, the punched hole 31 formed in the coupling member 3 is provided with the arc-shaped hole 312 by providing the arc-shaped protrusion 132 on the punch body 131. The torque between the clincher 3 and the coupled piece 4 is increased by plastically deforming the coupled piece 4 by the clincher mechanism 2 and abutting the arc-shaped hole 312.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A spin riveting device for increasing torque is characterized by comprising a punching mechanism and a spin riveting mechanism which are used for processing a connecting piece in sequence,

the punching mechanism comprises a lower template for fixing the connecting piece and an upper template opposite to the lower template, wherein the upper template is provided with a punch assembly, the punch assembly comprises a cylindrical punch body and arc-shaped bulges uniformly distributed on the side surface of the punch body, the number of the arc-shaped bulges is at least 1, the punch assembly is used for punching the connecting piece so as to form punched holes on the connecting piece, and the punched holes comprise circular holes and arc-shaped holes distributed along the circumferential direction of the circular holes;

the spin riveting mechanism comprises a riveting head and a positioning plate for fixing a connecting piece and a connected piece, wherein the riveting head presses the connected piece penetrating through the circular hole to enable the connected piece to abut against the arc-shaped hole through plastic deformation.

2. The spin riveting apparatus for increasing torque according to claim 1, characterized in that the arc-shaped protrusions are integrally formed with the punch body, are long-strip-shaped and are fixed to the side wall of the punch body in the extending direction of the punch body.

3. The spin-riveting apparatus for increasing torque according to claim 1, wherein the arc-shaped protrusion is semi-circular in cross-section.

4. A spin-riveting apparatus for increasing torque according to claim 3, wherein the ratio of the radius of the circular hole to the radius of the cross-section of the arc-shaped protrusion is 5-20.

5. The spin riveting apparatus for increasing torque according to claim 1, wherein the number of the arc-shaped protrusions is 2, and the arc-shaped protrusions are distributed to two sides of the punch body.

6. The spin riveting apparatus for increasing torque according to claim 1, wherein the lower template is provided with a blanking hole directly below the punch assembly, and the blanking hole can accommodate the punch assembly.

7. The spin riveting apparatus for increasing torque according to claim 1, wherein the connecting member is a plate-shaped workpiece, the connected member is a shaft-shaped workpiece, and the positioning plate is provided with a first positioning groove for accommodating the connected member.

8. The spin riveting apparatus for increasing torque according to claim 7, wherein a second workpiece is mounted on the connecting member, and a second positioning groove matched with the second workpiece is formed in the positioning plate.

9. The spin-riveting apparatus for torque multiplication according to claim 1, wherein the punch assemblies are multiple and identical in structure, and each punch assembly is replaceably mounted to the upper die plate.