Stamping and riveting mechanism

Abstract

The disclosure provides a stamping and riveting mechanism for riveting a first object and a second object. That is, integrating a first object in a riveting mechanism into a stamping die is to let the first object and the second object be riveted together during a stamping process. This reduces the need for transferring semi-finished products, decreases personnel and equipment requirements, so as to lower production costs. The stamping and riveting mechanism comprising a first stamping assembly and a second stamping assembly that are arranged up and down and parallel to a first direction. The first stamping assembly is disposed above the second stamping assembly, and the first stamping assembly is parallel to the first direction and moves corresponding to the second stamping assembly. The first stamping assembly provides a first object, and the second stamping assembly provides a second object.

Description

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefits of Taiwan application Serial No. 113209264, filed on Aug. 27, 2024, the disclosures of which are incorporated by references herein in its entirety.TECHNICAL FIELD

[0002] The disclosure is in related to an automatic riveting mechanism within a metal stamping die, more particularly to a stamping and riveting mechanism that integrates a first object in a riveting mechanism into a stamping die, so as to let a first object and a second object be riveted together during a stamping process.BACKGROUND

[0003] The riveting methods in prior arts can generally be divided into two types, one uses riveting equipment, and the other uses stamping equipment. The following will describe the drawbacks of these two types of riveting methods, and they both adopt a nut riveted to a sheet as examples, but the objects being riveted are not limited to nuts and sheets.

[0004] Regarding riveting equipment, the thickness of a sheet material shall face serious requirements, and it is not suitable for thinner materials. The sheet thickness being increased to meet the riveting surface requirements will highly increase production cost. Besides, the sheet materials may be varied in thickness, the structural parameters for press-riveting the nut will be different as well. Hence, it is not only that of requiring time-consuming adjustments, but also leading to higher production management and quality control costs.

[0005] For stamping equipment, the stamping and riveting steps include: setting positioning on the die, inserting the nut, placing the sheet, press-riveting together, and obtaining the finished product. The drawback of stamping equipment is its tedious process, requiring manual insertion of the nut and sheet. This approach is not only slow but also easily happening missed placements, causing that of defective products and low production efficiency.

[0006] Accordingly, developing a “stamping and riveting mechanism” that enables the first and second objects to be riveted together during the stamping process, with a simple, fast workflow, stable quality, and reduced production costs, is an urgent issue for people skilled in the art.SUMMARY

[0007] The disclosure provides a stamping and riveting mechanism for riveting a first object and a second object. That is, integrating a first object in a riveting mechanism into a stamping die is to let a first object and a second object be riveted together during a stamping process. This reduces the need for transferring semi-finished products, decreases personnel and equipment requirements, so as to lower production costs.

[0008] The first objective of the disclosure provides a stamping and riveting mechanism, which comprises a first stamping assembly and a second stamping assembly that are arranged up and down and parallel to a first direction, the first stamping assembly is disposed above the second stamping assembly, the first stamping assembly is parallel to the first direction and moves corresponding to the second stamping assembly, the first stamping assembly provides a first object, the second stamping assembly provides a second object, wherein

[0009] the first stamping assembly comprises:

[0010] a first stamping base;

[0011] a punch, having a first top end and a first bottom end that are corresponding to each other, the first top end being disposed at the first stamping base, the first bottom end, toward the second stamping assembly, being parallel to the first direction;

[0012] an unloading plate, disposed beneath the first stamping base;

[0013] a movable part, having a second top end and a second bottom end that are corresponding to each other, the movable part being movably disposed through the first stamping base and parallel to the first direction, the second bottom end being connected with the unloading plate, therefore the first stamping base being parallel to the first direction and moving corresponding to the unloading plate;

[0014] a plurality of guide pillars, each of the guide pillars having a third top end and a third bottom end, the third top end being disposed at the first stamping base, the third bottom end being toward the second stamping assembly, the guide pillars being movably disposed through the unloading plate and parallel to the first direction; and

[0015] a loading device, comprises:

[0016] a base, disposed at the unloading plate, having a first penetrating portion that is parallel to the first direction and through the base, the first bottom end of the punch being parallel to the first direction and extending into the first penetrating portion for moving in the first penetrating portion along the first direction;

[0017] a plurality of swing members, each of the swing members being disposed at the base via a pivot axis, the swing member symmetrically having two swing arms, a first swing arm and a second swing arm, based on the pivot axis, wherein the first swing arm is above the second swing arm;

[0018] a plurality of elastic members, an elastic direction of each of the elastic members being parallel to a second direction, two ends of the elastic member along the elastic direction being against the first swing arm and the base respectively, wherein the second direction is perpendicular to the first direction;

[0019] a plurality of positioning members, two ends of each of the positioning members along the second direction being a first end and a second end that are corresponding to each other, the first end being inserted into or withdrawn from the first penetrating portion, the second end being connected with the second swing arm;

[0020] a plurality of steel balls, each of the steel balls being disposed in the base and between the pivot axis and the positioning member, the steel ball moving between a release position and a push position, the partial steel ball being inserted into the first penetrating portion while the steel ball is at the release position, the steel ball being withdrawn from the first penetrating portion while the steel ball is at the push position;

[0021] a feed base, disposed on a bottom portion of the base, having a second penetrating portion, which is penetrated through the feed base along the first direction, the first penetrating portion and the second penetrating portion being allowed the first object to go through; and

[0022] the elastic member pushing the first swing arm outwardly while the steel ball is at the release position, the second swing arm driving the first end of the positioning member to insert into the first penetrating portion, the first end of the positioning member supporting the first object for keeping it in a suspended state; the steel ball being pushed outwardly while the punch passes through the steel ball, continuously, the steel ball pushing the second swing arm, so as to let the first end of the positioning member be withdrawn from the first penetrating portion, hence the first swing arm compressing the elastic member, the first object falling into the second penetrating portion from the first penetrating portion, finally to a top portion of the second object; and

[0023] the second stamping assembly comprises:

[0024] a second stamping base, comprising a third penetrating portion and a plurality of guide holes, the third penetrating portion being through the second stamping base along the first direction, an axial direction of each of the guide holes being parallel to the first direction, each of the guide pillars being inserted into or withdrawn from the corresponding guide hole while the guide pillar moves along the first direction, the guide pillar being able to move in the guide hole along the first direction, the second stamping base being provided with a protrusion platform on each of its opposite sides, which are parallel to the second direction, and a recess being between the two protrusion platforms; and

[0025] a rivet base, disposed within the recess of the second stamping base, comprising a fourth penetrating portion, which is parallel to the first direction and through the rivet base, the third penetrating portion and the fourth penetrating portion allowing a sheared material to pass through, wherein the sheared material is the product after the first object and the second object are stamped and riveted.

[0026] For a preferred embodiment, each of the swing members is assembled with the elastic member as one set, and each of the positioning members is assembled with the steel ball as another set, both sets are symmetrically disposed around peripheral of the first penetrating portion.

[0027] For a preferred embodiment, the projection range of the first penetrating portion of the base falls within the projection range of the second penetrating portion of the feed base.

[0028] For a preferred embodiment, the loading device comprises a first detection element, disposed in the second penetrating portion, in order to detect whether the first object is in the second penetrating portion or not; and a second detection element, disposed in the first penetrating portion, in order to detect whether the first object is in the first penetrating portion or not.

[0029] For a preferred embodiment, the projection range of the third penetrating portion falls within a projection range of the fourth penetrating portion, the projection range of the fourth penetrating portion is equal to or greater than the projection range of the third penetrating portion.

[0030] For a preferred embodiment, the projection ranges of the first penetrating portion and the second penetrating portion cover the projection range of the third penetrating portion, the projection ranges of the first penetrating portion and the second penetrating portion is greater than the projection range of the third penetrating portion.BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present disclosure will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present disclosure and wherein:

[0032] FIG. 1 illustrates a schematic structural view of an embodiment of the disclosure;

[0033] FIG. 2 and FIG. 3 illustrate two amplified structural views of a loading device of the disclosure;

[0034] FIG. 4 to FIG. 7 illustrate a schematic continuous action views of stamping and riveting a first object and a second object of the disclosure;

[0035] FIG. 8 illustrates a schematic structural view of the first object and the second object being not yet stamped and riveted together;

[0036] FIG. 9 illustrates a schematic structural view of the first object and the second object being stamped and riveted together, resulting in a sheared material; and

[0037] FIG. 10 illustrates a schematic structural view of an embodiment of the first object and the second object of the disclosure.DETAILED DESCRIPTION

[0038] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.

[0039] The terms “including”, “comprising”, “having” and the like mentioned in this disclosure are all open terms; i.e., implying only “including but not limited to”.

[0040] In the description of embodiments, when terms such as “first”, “second”, “third”, “fourth” etc. are used to describe elements, they are only used to distinguish these elements from each other, but not limit order or importance of any of these elements.

[0041] In the descriptions of various embodiments, the so-called “coupling” or “connection” may refer to two or a plurality of components making physical or electrical contact directly or indirectly with each other, or refer to the mutual operation or action of two or a plurality of elements.

[0042] With reference to FIG. 1, a stamping and riveting mechanism 100 provided by the disclosure has a first stamping assembly 10 and a second stamping assembly 20.

[0043] The first stamping assembly 10 and the second stamping assembly 20 that are arranged up and down and parallel to a first direction F1, the first stamping assembly 10 is disposed above the second stamping assembly 20, and the first stamping assembly 10 is parallel to the first direction F1 and moves relative to the second stamping assembly 20.

[0044] The first stamping assembly 10 provides a first object 91, and the second stamping assembly 20 provides a second object 92. By way of stamping the first stamping assembly 10 and the second stamping assembly 20, the first object 91 and the second object 92 are riveted to become a finished product.

[0045] The shapes of the first object 91 and the second object 92 may depend on actual requirements and can be any stamped parts, which are able to be riveted together. For example, the first object 91 can be a nut, and the second object 92 can be a sheet. Typically, the first object 91 and the second object 92 are made of metal.

[0046] The first stamping assembly 10 has a first stamping base 11, a punch 12, an unloading plate 13, a plurality of movable parts 14, a plurality of guide pillars 15, and a loading device 16. As a usual, the first stamping base 11, the punch 12, the unloading plate 13, the plurality of movable parts 14, the plurality of guide pillars 15, and the loading device 16 are made of metal, such as steel, cemented carbide, steel-bonded cemented carbide, zinc-based alloy, low melting point alloy, aluminum bronze, polymer materials.

[0047] The punch 12 has a first top end 121 and a first bottom end 122 that are corresponding to each other. The first top end 121 is disposed at the first stamping base 11. The first bottom end 122, toward the second stamping assembly 20, is parallel to the first direction F1.

[0048] The unloading plate 13 is disposed beneath the first stamping base 11.

[0049] The movable part 14 has a second top end 141 and a second bottom end 142 that are corresponding to each other. The movable part 14 is movably disposed through the first stamping base 11 and parallel to the first direction F1. The second bottom end 142 is connected with the unloading plate 13, therefore the first stamping base 11 is parallel to the first direction F1 and moving corresponding to the unloading plate 13.

[0050] For example, the second bottom end 142 and the unloading plate 13 can be threaded together, or the unloading plate 13 can be fixed to the second bottom end 142 by welding or other methods.

[0051] Each of the guide pillars 15 has a third top end 151 and a third bottom end 152. The third top end 151 is disposed at the first stamping base 11, and the third bottom end 152 is toward the second stamping assembly 20. The guide pillar 15 is movably disposed through the unloading plate 13 and parallel to the first direction F1.

[0052] With regarding to FIG. 2 and FIG. 3, the loading device 16 has a base 161, a plurality of swing members 162, a plurality of elastic members 163, a plurality of positioning members 164, a plurality of steel balls 165, a feed base 166, a first detection element 167, and a second detection element 168.

[0053] The base 161 and the punch 12 are coaxial with an axis C. The base 161is disposed at the unloading plate 13, and has a first penetrating portion 1611 that is parallel to the first direction F1 and through the base 161. The first bottom end 122 of the punch 12 is parallel to the first direction F1 and extends into the first penetrating portion 1611 for moving in the first penetrating portion 1611 along the first direction F1.

[0054] The swing member 162 is assembled with the elastic member 163 as one set, and each of the positioning members 164 is assembled with the steel ball 165 as another set. The numbers of the swing member 162, the elastic member 163, the positioning member 164, and the steel ball 165 may not be limited thereto, further, a preferred embodiment is that of both sets being symmetrically disposed around the peripheral of the first penetrating portion 1611. As shown in FIG. 1 and FIG. 2, they are symmetrically disposed at the two sides of the first penetrating portion 1611.

[0055] The swing members 162 is disposed at the base 161 via a pivot axis 1623 and symmetrically has two swing arms, a first swing arm 1621 and a second swing arm 1622, based on the pivot axis 1623, wherein the first swing arm 1621 is above the second swing arm 1622.

[0056] The elastic member 163 is disposed in the base 161. The elastic direction of the elastic member 163 is parallel to a second direction F2. The two ends of the elastic member 163 along the elastic direction are against the first swing arm 1621 and the base 161 respectively, wherein the second direction F2 is perpendicular to the first direction F1.

[0057] The positioning member 164 is disposed in the base 161. The two ends of each of the positioning members 164 along the second direction F2 are a first end 1641 and a second end 1642 that are corresponding to each other. The first end 1641 is inserted into or withdrawn from the first penetrating portion 1611, and the second end 1642 is connected with the second swing arm 1622.

[0058] Each of the steel balls 165 is disposed in the base 161 and between the pivot axis 1623 and the positioning member 164. The steel ball 165 moves between a release position and a push position. FIG. 2 illustrates a release position, the partial steel ball 165 is inserted into the first penetrating portion 1611 while the steel ball 165 is at the release position. As shown in FIG. 3, it is a push position, the steel ball 165 is withdrawn from the first penetrating portion 1611.

[0059] As to FIG. 2, when the punch 12 does not touch onto the steel ball 165 yet, the steel ball 165 is under the state of release. By way of the elastic force of the elastic member 163 pushing the first swing arm 1621 outwardly, the second swing arm 1622 drives the first end 1641 of the positioning members 164 to insert into the first penetrating portion 1611.

[0060] Please refer to FIG. 3, the punch 12 moves downward to touch the steel ball 165 along the first direction F1, the steel ball 165 is pushed outwardly to the push position. Thus, the steel ball 165 is withdrawn from the first penetrating portion 1611, and the steel ball 165 pushes the second swing arm 1622 in order to let the first end 1641 of the positioning member 164 be withdrawn from the first penetrating portion 1611. Further, the first swing arm 1621 compresses the elastic member 163.

[0061] The feed base 166 is disposed on the bottom portion of the base 161, and has a second penetrating portion 1661, which is penetrated through the feed base 166 along the first direction F1. The bottom of the feed seat 166 is provided with a protrusion 1662.

[0062] The projection range of the first penetrating portion 1611 of the base 161 falls within the projection range of the second penetrating portion 1661 of the feed base 166. A preferred embodiment is that of the projection range of the first penetrating portion 1611 being equal to the projection range of the second penetrating portion 1661.

[0063] The first detection element 167 is disposed in the second penetrating portion 1661, in order to detect whether the first object 91 is in the second penetrating portion 1661 or not.

[0064] The second detection element 168 is disposed in the first penetrating portion 1611, in order to detect whether the first object 91 is in the first penetrating portion 1611 or not.

[0065] When the first detection element 167 detects that the first object 91 is in the second penetrating portion 1661, or when the second detection element 168 detects that the first object 91 is in the first penetrating portion 1611, a signal will be sent to a servo system (not shown in the figure) to control the stamping and riveting mechanism to continue the follow-up work.

[0066] With reference to FIG. 1, the second stamping assembly 20 has a second stamping base 21 and a rivet base 22. As always, the second stamping base 21 and the rivet base 22 are made of metal, such as steel, cemented carbide, steel-bonded cemented carbide, zinc-based alloy, low melting point alloy, aluminum bronze, polymer materials.

[0067] The second stamping base 21 has a third penetrating portion 211 and a plurality of guide holes 212. The third penetrating portion 211 is through the second stamping base 21 along the first direction F1.

[0068] The second stamping base 21 is provided with a protrusion platform 213 on each of its opposite sides, which are parallel to the second direction F2, and a recess 214 is between the two protrusion platforms 213. The recess 214 has two bottom protrusions 215 and a lateral protrusion 216, wherein the bottom protrusions 215 are located at two corresponding sides of the rivet base 22 respectively, and the lateral protrusion 216 is disposed at the side of the rivet base 22.

[0069] The rivet base 22 is disposed within the recess 214 of the second stamping base 21, and has a fourth penetrating portion 221, which is parallel to the first direction F1 and through the rivet base 22.

[0070] According to FIG. 1, the top portion of the rivet base 22 protrudes from the recess 214. The top portion of the rivet base 22 and the top portion of the bottom protrusion 215 is about the same high, so as to let the second object 92 be firmly disposed on the top portion of the rivet base 22. More, the lateral side of the second object 92 is against the side of the lateral protrusion 216.

[0071] The projection range of the third penetrating portion 211 falls within the projection range of the fourth penetrating portion 221, and the projection range of the fourth penetrating portion 221 is equal to or greater than the projection range of the third penetrating portion 211.

[0072] The projection ranges of the first penetrating portion 1611 and the second penetrating portion 1661 cover the projection range of the third penetrating portion 211, the projection ranges of the first penetrating portion 1611 and the second penetrating portion 1661 are greater than a projection range of the third penetrating portion 211.

[0073] The axial direction of each of the guide holes 212 is parallel to the first direction F1. Each of the guide pillars 15 is inserted into or withdrawn from the corresponding guide hole 212 while the guide pillar 15 moves along the first direction F1. The guide pillar 15 is able to move in the guide hole 212 along the first direction (F1).

[0074] As for FIG. 4 to FIG. 7, which describe the working principle of the first object 91 and the second object 92 of the stamping and riveting mechanism of the disclosure.

[0075] Regarding FIG. 4, the first object 91 has been sent to the loading device 16, and the second object 92 has been disposed on the top portion of the rivet base 22.

[0076] The elastic member 163 pushes the first swing arm 1621 outwardly while the steel ball 165 is at the release position. The second swing arm 1622 drives the first end 1641 of the positioning member 164 to insert into the first penetrating portion 1611, and the first end 1641 of the positioning member 164 supports the first object 91 for keeping it in a suspended state.

[0077] The shapes of the first object 91 and the second object 92 may depend on actual requirements and can be any stamped parts, and they are not limited to the first object 91 as a nut and the second object 92 as a sheet material, as shown in figure.

[0078] When both the first object 91 and the second object 92 are in position, the first stamping assembly 10 can be controlled to move downward, that is, the stamping assembly 10 moves toward the second stamping assembly 20 along the first direction F1.

[0079] It is not limited to the means of controlling the operation of the first stamping assembly 10. For instance, a servo system can be applied, but depending on actual requirements.

[0080] Please refer to FIG. 5, the first stamping base 11 drives the punch 12, the unloading plate 13, the movable parts 14, the guide pillars 15, and the loading device 16 to move downward and simultaneously. When the unloading plate 13 goes down to the top portion of the protrusion platform 213 of the second stamping base 21, and the guide pillar 15 inserts into the corresponding guide hole 212, the protrusion 1662 of the bottom portion of the feed base 166 is generally in contact with the second object 92.

[0081] In the meantime, the unloading plate 13, the movable parts 14 and the loading device 16 do not move downward any further, but the first stamping base 11, the punch 12 and the guide pillars 15 are able to go down continuously. Besides, the punch 12 does not pass through the steel ball 165 yet.

[0082] As for FIG. 6, the first stamping base 11, the punch 12 and the guide pillars 15 continuously moves downward. When the punch 12 passes through the steel ball 165, the steel ball 165 is pushed outward as well, the steel ball 165 pushes the second swing arm 1622, so as to let the first end 1641 of the positioning member 164 be withdrawn from the first penetrating portion 1611, the first swing arm 1621 compresses the elastic member 163.

[0083] Since the positioning member 164, originally supported the first object 91, is withdrawn from the first penetrating portion 1611, the first object 91 will drop from the first penetrating portion 1611 into the second penetrating portion 1661, and then onto the top portion of the second object 92. At this time, the first object 91 and the second object 92 are merely in contact with each other but have not yet been riveted together.

[0084] When the first object 91 falls into the second penetrating portion 1661, and the first detection element 167 detects the first object 91, the signal from the first detection element 167 will be sent to the servo system for controlling the first stamping base 11, the punch 12 and the guide pillars 15 to continuously move downward. Otherwise, if there is no the first object 91, the other signal will also be sent to the servo system for stopping the first stamping base 11, the punch 12 and the guide pillars 15 to move downward any further. The follow-up step is to let the maintenance staff check whether it is out of order or not.

[0085] Referring to FIG. 7, the first stamping base 11 drives the punch 12 to continuously move downward, and the punch 12 presses the first object 91 into the second object 92 for riveting them into a finished product.

[0086] When the first object 91 is pressed into the second object 92, it shears off the material at the corresponding position of the second object 92, embedding itself into the second object 92. The sheared-off material 921 from the corresponding position of the second object 92 is discharged out of the second stamping base 21 by means of the fourth penetrating portion 221 of the rivet base 22 and the third penetrating portion 211 of the second stamping base 21.

[0087] Next, the servo system controls the first stamping assembly 10 moving upward along the first direction F1. That is, it is back to the state in FIG. 4. Right after that, reloading another first object 91 and another second object 92 is to proceed with the stamping and riveting process for the next set of finished products.

[0088] For the structure of the first object 91 and the second object 92 being stamped and riveted to each other, the amplified views refer to FIG. 8 and FIG. 9. FIG. 8 illustrates that of the first object 91 and the second object 92 being not yet stamped and riveted together. FIG. 9 illustrates that of the first object 91 and the second object 92 being stamped and riveted together, resulting in a sheared material 921.

[0089] In accordance with FIG. 4 to FIG. 7, the aforesaid stamping and riveting processes will be further depicted as following. The dimensions of the first penetrating portion 1611 and the second penetrating portion 1661 are designed for allowing the first object 91 to go through. The dimensions of the third penetrating portion 211 and the fourth penetrating portion 221 are designed for allowing the shearing material 921 to go through.

[0090] The shapes of the first penetrating portion 1611, the second penetrating portion 1661, the third penetrating portion 211, and the fourth penetrating portion 221 can be designed according to the actual shapes of the first object 91 and the shearing material 921.

[0091] As an example, the first object 91 is a hexagonal nut, the cross-sections of the first penetrating portion 1611 and the second penetrating portion 1661 can be hexagonal or circular, or other shapes that allow the first object 91 to move smoothly within the first penetrating portion 1611 and the second penetrating portion 1661 along the first direction F1.

[0092] Similarly, the shapes of the third penetrating portion 211 and the fourth penetrating portion 221 can be designed according to the shape of the shearing material 921, or other shapes that allow the shearing material 921 to move smoothly within the third penetrating portion 211 and the fourth penetrating portion 221 along the first direction F1.

[0093] As illustrations in FIG. 4 and FIG. 10, the first object 91 and the second object 92 can be placed in by electric machinery or hands.

[0094] As shown in FIG. 10, by means of dedicated air pressure parameters cooperated with mechanisms, the first object 91 is blown to a pointed position, such as the loading device 16 in FIG. 4. The second object 92 is an elongated sheet material continuously fed into the mechanisms.

[0095] The first detection element 167 detects whether the first object 91 falls down or not; the second detection element 168 detects whether the first object 91A is in position or not.

[0096] As shown in FIG. 10, the first object 91 located below has been stamped and riveted to the second object 92; the other first object 91A located above has been in position. After the second object 92 that is stamped and riveted by the first object 91 is moved, the first object 91A will fall down to the top surface of the second object 92 for the next stamping and riveting process. Consequently, the following first objects 91B, 91C, 91D, and 91E will be the same processes as the first object 91A.

[0097] As a conclusion, the stamping and riveting mechanism provided by disclosure allows that the first and second objects can be ideally interlocked and riveted together directly through stamping, with no additional riveting equipment. The process is simple, fast, and provides stable quality, so as to reduce production costs.

[0098] With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present disclosure.

Examples

Embodiment Construction

[0038]In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.

[0039]The terms “including”, “comprising”, “having” and the like mentioned in this disclosure are all open terms; i.e., implying only “including but not limited to”.

[0040]In the description of embodiments, when terms such as “first”, “second”, “third”, “fourth” etc. are used to describe elements, they are only used to distinguish these elements from each other, but not limit order or importance of any of these elements.

[0041]In the descriptions of various embodiments, the so-called “coupling” or “connection” may refer to two or a plurality of components making physical or electrical...

CROSS REFERENCE TO RELATED APPLICATION

[0001] This application claims the benefits of Taiwan application Serial No. 113209264, filed on Aug. 27, 2024, the disclosures of which are incorporated by references herein in its entirety.TECHNICAL FIELD

[0002] The disclosure is in related to an automatic riveting mechanism within a metal stamping die, more particularly to a stamping and riveting mechanism that integrates a first object in a riveting mechanism into a stamping die, so as to let a first object and a second object be riveted together during a stamping process.BACKGROUND

[0003] The riveting methods in prior arts can generally be divided into two types, one uses riveting equipment, and the other uses stamping equipment. The following will describe the drawbacks of these two types of riveting methods, and they both adopt a nut riveted to a sheet as examples, but the objects being riveted are not limited to nuts and sheets.

[0004] Regarding riveting equipment, the thickness of a sheet material shall face serious requirements, and it is not suitable for thinner materials. The sheet thickness being increased to meet the riveting surface requirements will highly increase production cost. Besides, the sheet materials may be varied in thickness, the structural parameters for press-riveting the nut will be different as well. Hence, it is not only that of requiring time-consuming adjustments, but also leading to higher production management and quality control costs.

[0005] For stamping equipment, the stamping and riveting steps include: setting positioning on the die, inserting the nut, placing the sheet, press-riveting together, and obtaining the finished product. The drawback of stamping equipment is its tedious process, requiring manual insertion of the nut and sheet. This approach is not only slow but also easily happening missed placements, causing that of defective products and low production efficiency.

[0006] Accordingly, developing a “stamping and riveting mechanism” that enables the first and second objects to be riveted together during the stamping process, with a simple, fast workflow, stable quality, and reduced production costs, is an urgent issue for people skilled in the art.SUMMARY

[0007] The disclosure provides a stamping and riveting mechanism for riveting a first object and a second object. That is, integrating a first object in a riveting mechanism into a stamping die is to let a first object and a second object be riveted together during a stamping process. This reduces the need for transferring semi-finished products, decreases personnel and equipment requirements, so as to lower production costs.

[0008] The first objective of the disclosure provides a stamping and riveting mechanism, which comprises a first stamping assembly and a second stamping assembly that are arranged up and down and parallel to a first direction, the first stamping assembly is disposed above the second stamping assembly, the first stamping assembly is parallel to the first direction and moves corresponding to the second stamping assembly, the first stamping assembly provides a first object, the second stamping assembly provides a second object, wherein

[0009] the first stamping assembly comprises:

[0010] a first stamping base;

[0011] a punch, having a first top end and a first bottom end that are corresponding to each other, the first top end being disposed at the first stamping base, the first bottom end, toward the second stamping assembly, being parallel to the first direction;

[0012] an unloading plate, disposed beneath the first stamping base;

[0013] a movable part, having a second top end and a second bottom end that are corresponding to each other, the movable part being movably disposed through the first stamping base and parallel to the first direction, the second bottom end being connected with the unloading plate, therefore the first stamping base being parallel to the first direction and moving corresponding to the unloading plate;

[0014] a plurality of guide pillars, each of the guide pillars having a third top end and a third bottom end, the third top end being disposed at the first stamping base, the third bottom end being toward the second stamping assembly, the guide pillars being movably disposed through the unloading plate and parallel to the first direction; and

[0015] a loading device, comprises:

[0016] a base, disposed at the unloading plate, having a first penetrating portion that is parallel to the first direction and through the base, the first bottom end of the punch being parallel to the first direction and extending into the first penetrating portion for moving in the first penetrating portion along the first direction;

[0017] a plurality of swing members, each of the swing members being disposed at the base via a pivot axis, the swing member symmetrically having two swing arms, a first swing arm and a second swing arm, based on the pivot axis, wherein the first swing arm is above the second swing arm;

[0018] a plurality of elastic members, an elastic direction of each of the elastic members being parallel to a second direction, two ends of the elastic member along the elastic direction being against the first swing arm and the base respectively, wherein the second direction is perpendicular to the first direction;

[0019] a plurality of positioning members, two ends of each of the positioning members along the second direction being a first end and a second end that are corresponding to each other, the first end being inserted into or withdrawn from the first penetrating portion, the second end being connected with the second swing arm;

[0020] a plurality of steel balls, each of the steel balls being disposed in the base and between the pivot axis and the positioning member, the steel ball moving between a release position and a push position, the partial steel ball being inserted into the first penetrating portion while the steel ball is at the release position, the steel ball being withdrawn from the first penetrating portion while the steel ball is at the push position;

[0021] a feed base, disposed on a bottom portion of the base, having a second penetrating portion, which is penetrated through the feed base along the first direction, the first penetrating portion and the second penetrating portion being allowed the first object to go through; and

[0022] the elastic member pushing the first swing arm outwardly while the steel ball is at the release position, the second swing arm driving the first end of the positioning member to insert into the first penetrating portion, the first end of the positioning member supporting the first object for keeping it in a suspended state; the steel ball being pushed outwardly while the punch passes through the steel ball, continuously, the steel ball pushing the second swing arm, so as to let the first end of the positioning member be withdrawn from the first penetrating portion, hence the first swing arm compressing the elastic member, the first object falling into the second penetrating portion from the first penetrating portion, finally to a top portion of the second object; and

[0023] the second stamping assembly comprises:

[0024] a second stamping base, comprising a third penetrating portion and a plurality of guide holes, the third penetrating portion being through the second stamping base along the first direction, an axial direction of each of the guide holes being parallel to the first direction, each of the guide pillars being inserted into or withdrawn from the corresponding guide hole while the guide pillar moves along the first direction, the guide pillar being able to move in the guide hole along the first direction, the second stamping base being provided with a protrusion platform on each of its opposite sides, which are parallel to the second direction, and a recess being between the two protrusion platforms; and

[0025] a rivet base, disposed within the recess of the second stamping base, comprising a fourth penetrating portion, which is parallel to the first direction and through the rivet base, the third penetrating portion and the fourth penetrating portion allowing a sheared material to pass through, wherein the sheared material is the product after the first object and the second object are stamped and riveted.

[0026] For a preferred embodiment, each of the swing members is assembled with the elastic member as one set, and each of the positioning members is assembled with the steel ball as another set, both sets are symmetrically disposed around peripheral of the first penetrating portion.

[0027] For a preferred embodiment, the projection range of the first penetrating portion of the base falls within the projection range of the second penetrating portion of the feed base.

[0028] For a preferred embodiment, the loading device comprises a first detection element, disposed in the second penetrating portion, in order to detect whether the first object is in the second penetrating portion or not; and a second detection element, disposed in the first penetrating portion, in order to detect whether the first object is in the first penetrating portion or not.

[0029] For a preferred embodiment, the projection range of the third penetrating portion falls within a projection range of the fourth penetrating portion, the projection range of the fourth penetrating portion is equal to or greater than the projection range of the third penetrating portion.

[0030] For a preferred embodiment, the projection ranges of the first penetrating portion and the second penetrating portion cover the projection range of the third penetrating portion, the projection ranges of the first penetrating portion and the second penetrating portion is greater than the projection range of the third penetrating portion.BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The present disclosure will become more fully understood from the detailed description given herein below and the accompanying drawings which are given by way of illustration only, and thus are not limitative of the present disclosure and wherein:

[0032] FIG. 1 illustrates a schematic structural view of an embodiment of the disclosure;

[0033] FIG. 2 and FIG. 3 illustrate two amplified structural views of a loading device of the disclosure;

[0034] FIG. 4 to FIG. 7 illustrate a schematic continuous action views of stamping and riveting a first object and a second object of the disclosure;

[0035] FIG. 8 illustrates a schematic structural view of the first object and the second object being not yet stamped and riveted together;

[0036] FIG. 9 illustrates a schematic structural view of the first object and the second object being stamped and riveted together, resulting in a sheared material; and

[0037] FIG. 10 illustrates a schematic structural view of an embodiment of the first object and the second object of the disclosure.DETAILED DESCRIPTION

[0038] In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.

[0039] The terms “including”, “comprising”, “having” and the like mentioned in this disclosure are all open terms; i.e., implying only “including but not limited to”.

[0040] In the description of embodiments, when terms such as “first”, “second”, “third”, “fourth” etc. are used to describe elements, they are only used to distinguish these elements from each other, but not limit order or importance of any of these elements.

[0041] In the descriptions of various embodiments, the so-called “coupling” or “connection” may refer to two or a plurality of components making physical or electrical contact directly or indirectly with each other, or refer to the mutual operation or action of two or a plurality of elements.

[0042] With reference to FIG. 1, a stamping and riveting mechanism 100 provided by the disclosure has a first stamping assembly 10 and a second stamping assembly 20.

[0043] The first stamping assembly 10 and the second stamping assembly 20 that are arranged up and down and parallel to a first direction F1, the first stamping assembly 10 is disposed above the second stamping assembly 20, and the first stamping assembly 10 is parallel to the first direction F1 and moves relative to the second stamping assembly 20.

[0044] The first stamping assembly 10 provides a first object 91, and the second stamping assembly 20 provides a second object 92. By way of stamping the first stamping assembly 10 and the second stamping assembly 20, the first object 91 and the second object 92 are riveted to become a finished product.

[0045] The shapes of the first object 91 and the second object 92 may depend on actual requirements and can be any stamped parts, which are able to be riveted together. For example, the first object 91 can be a nut, and the second object 92 can be a sheet. Typically, the first object 91 and the second object 92 are made of metal.

[0046] The first stamping assembly 10 has a first stamping base 11, a punch 12, an unloading plate 13, a plurality of movable parts 14, a plurality of guide pillars 15, and a loading device 16. As a usual, the first stamping base 11, the punch 12, the unloading plate 13, the plurality of movable parts 14, the plurality of guide pillars 15, and the loading device 16 are made of metal, such as steel, cemented carbide, steel-bonded cemented carbide, zinc-based alloy, low melting point alloy, aluminum bronze, polymer materials.

[0047] The punch 12 has a first top end 121 and a first bottom end 122 that are corresponding to each other. The first top end 121 is disposed at the first stamping base 11. The first bottom end 122, toward the second stamping assembly 20, is parallel to the first direction F1.

[0048] The unloading plate 13 is disposed beneath the first stamping base 11.

[0049] The movable part 14 has a second top end 141 and a second bottom end 142 that are corresponding to each other. The movable part 14 is movably disposed through the first stamping base 11 and parallel to the first direction F1. The second bottom end 142 is connected with the unloading plate 13, therefore the first stamping base 11 is parallel to the first direction F1 and moving corresponding to the unloading plate 13.

[0050] For example, the second bottom end 142 and the unloading plate 13 can be threaded together, or the unloading plate 13 can be fixed to the second bottom end 142 by welding or other methods.

[0051] Each of the guide pillars 15 has a third top end 151 and a third bottom end 152. The third top end 151 is disposed at the first stamping base 11, and the third bottom end 152 is toward the second stamping assembly 20. The guide pillar 15 is movably disposed through the unloading plate 13 and parallel to the first direction F1.

[0052] With regarding to FIG. 2 and FIG. 3, the loading device 16 has a base 161, a plurality of swing members 162, a plurality of elastic members 163, a plurality of positioning members 164, a plurality of steel balls 165, a feed base 166, a first detection element 167, and a second detection element 168.

[0053] The base 161 and the punch 12 are coaxial with an axis C. The base 161is disposed at the unloading plate 13, and has a first penetrating portion 1611 that is parallel to the first direction F1 and through the base 161. The first bottom end 122 of the punch 12 is parallel to the first direction F1 and extends into the first penetrating portion 1611 for moving in the first penetrating portion 1611 along the first direction F1.

[0054] The swing member 162 is assembled with the elastic member 163 as one set, and each of the positioning members 164 is assembled with the steel ball 165 as another set. The numbers of the swing member 162, the elastic member 163, the positioning member 164, and the steel ball 165 may not be limited thereto, further, a preferred embodiment is that of both sets being symmetrically disposed around the peripheral of the first penetrating portion 1611. As shown in FIG. 1 and FIG. 2, they are symmetrically disposed at the two sides of the first penetrating portion 1611.

[0055] The swing members 162 is disposed at the base 161 via a pivot axis 1623 and symmetrically has two swing arms, a first swing arm 1621 and a second swing arm 1622, based on the pivot axis 1623, wherein the first swing arm 1621 is above the second swing arm 1622.

[0056] The elastic member 163 is disposed in the base 161. The elastic direction of the elastic member 163 is parallel to a second direction F2. The two ends of the elastic member 163 along the elastic direction are against the first swing arm 1621 and the base 161 respectively, wherein the second direction F2 is perpendicular to the first direction F1.

[0057] The positioning member 164 is disposed in the base 161. The two ends of each of the positioning members 164 along the second direction F2 are a first end 1641 and a second end 1642 that are corresponding to each other. The first end 1641 is inserted into or withdrawn from the first penetrating portion 1611, and the second end 1642 is connected with the second swing arm 1622.

[0058] Each of the steel balls 165 is disposed in the base 161 and between the pivot axis 1623 and the positioning member 164. The steel ball 165 moves between a release position and a push position. FIG. 2 illustrates a release position, the partial steel ball 165 is inserted into the first penetrating portion 1611 while the steel ball 165 is at the release position. As shown in FIG. 3, it is a push position, the steel ball 165 is withdrawn from the first penetrating portion 1611.

[0059] As to FIG. 2, when the punch 12 does not touch onto the steel ball 165 yet, the steel ball 165 is under the state of release. By way of the elastic force of the elastic member 163 pushing the first swing arm 1621 outwardly, the second swing arm 1622 drives the first end 1641 of the positioning members 164 to insert into the first penetrating portion 1611.

[0060] Please refer to FIG. 3, the punch 12 moves downward to touch the steel ball 165 along the first direction F1, the steel ball 165 is pushed outwardly to the push position. Thus, the steel ball 165 is withdrawn from the first penetrating portion 1611, and the steel ball 165 pushes the second swing arm 1622 in order to let the first end 1641 of the positioning member 164 be withdrawn from the first penetrating portion 1611. Further, the first swing arm 1621 compresses the elastic member 163.

[0061] The feed base 166 is disposed on the bottom portion of the base 161, and has a second penetrating portion 1661, which is penetrated through the feed base 166 along the first direction F1. The bottom of the feed seat 166 is provided with a protrusion 1662.

[0062] The projection range of the first penetrating portion 1611 of the base 161 falls within the projection range of the second penetrating portion 1661 of the feed base 166. A preferred embodiment is that of the projection range of the first penetrating portion 1611 being equal to the projection range of the second penetrating portion 1661.

[0063] The first detection element 167 is disposed in the second penetrating portion 1661, in order to detect whether the first object 91 is in the second penetrating portion 1661 or not.

[0064] The second detection element 168 is disposed in the first penetrating portion 1611, in order to detect whether the first object 91 is in the first penetrating portion 1611 or not.

[0065] When the first detection element 167 detects that the first object 91 is in the second penetrating portion 1661, or when the second detection element 168 detects that the first object 91 is in the first penetrating portion 1611, a signal will be sent to a servo system (not shown in the figure) to control the stamping and riveting mechanism to continue the follow-up work.

[0066] With reference to FIG. 1, the second stamping assembly 20 has a second stamping base 21 and a rivet base 22. As always, the second stamping base 21 and the rivet base 22 are made of metal, such as steel, cemented carbide, steel-bonded cemented carbide, zinc-based alloy, low melting point alloy, aluminum bronze, polymer materials.

[0067] The second stamping base 21 has a third penetrating portion 211 and a plurality of guide holes 212. The third penetrating portion 211 is through the second stamping base 21 along the first direction F1.

[0068] The second stamping base 21 is provided with a protrusion platform 213 on each of its opposite sides, which are parallel to the second direction F2, and a recess 214 is between the two protrusion platforms 213. The recess 214 has two bottom protrusions 215 and a lateral protrusion 216, wherein the bottom protrusions 215 are located at two corresponding sides of the rivet base 22 respectively, and the lateral protrusion 216 is disposed at the side of the rivet base 22.

[0069] The rivet base 22 is disposed within the recess 214 of the second stamping base 21, and has a fourth penetrating portion 221, which is parallel to the first direction F1 and through the rivet base 22.

[0070] According to FIG. 1, the top portion of the rivet base 22 protrudes from the recess 214. The top portion of the rivet base 22 and the top portion of the bottom protrusion 215 is about the same high, so as to let the second object 92 be firmly disposed on the top portion of the rivet base 22. More, the lateral side of the second object 92 is against the side of the lateral protrusion 216.

[0071] The projection range of the third penetrating portion 211 falls within the projection range of the fourth penetrating portion 221, and the projection range of the fourth penetrating portion 221 is equal to or greater than the projection range of the third penetrating portion 211.

[0072] The projection ranges of the first penetrating portion 1611 and the second penetrating portion 1661 cover the projection range of the third penetrating portion 211, the projection ranges of the first penetrating portion 1611 and the second penetrating portion 1661 are greater than a projection range of the third penetrating portion 211.

[0073] The axial direction of each of the guide holes 212 is parallel to the first direction F1. Each of the guide pillars 15 is inserted into or withdrawn from the corresponding guide hole 212 while the guide pillar 15 moves along the first direction F1. The guide pillar 15 is able to move in the guide hole 212 along the first direction (F1).

[0074] As for FIG. 4 to FIG. 7, which describe the working principle of the first object 91 and the second object 92 of the stamping and riveting mechanism of the disclosure.

[0075] Regarding FIG. 4, the first object 91 has been sent to the loading device 16, and the second object 92 has been disposed on the top portion of the rivet base 22.

[0076] The elastic member 163 pushes the first swing arm 1621 outwardly while the steel ball 165 is at the release position. The second swing arm 1622 drives the first end 1641 of the positioning member 164 to insert into the first penetrating portion 1611, and the first end 1641 of the positioning member 164 supports the first object 91 for keeping it in a suspended state.

[0077] The shapes of the first object 91 and the second object 92 may depend on actual requirements and can be any stamped parts, and they are not limited to the first object 91 as a nut and the second object 92 as a sheet material, as shown in figure.

[0078] When both the first object 91 and the second object 92 are in position, the first stamping assembly 10 can be controlled to move downward, that is, the stamping assembly 10 moves toward the second stamping assembly 20 along the first direction F1.

[0079] It is not limited to the means of controlling the operation of the first stamping assembly 10. For instance, a servo system can be applied, but depending on actual requirements.

[0080] Please refer to FIG. 5, the first stamping base 11 drives the punch 12, the unloading plate 13, the movable parts 14, the guide pillars 15, and the loading device 16 to move downward and simultaneously. When the unloading plate 13 goes down to the top portion of the protrusion platform 213 of the second stamping base 21, and the guide pillar 15 inserts into the corresponding guide hole 212, the protrusion 1662 of the bottom portion of the feed base 166 is generally in contact with the second object 92.

[0081] In the meantime, the unloading plate 13, the movable parts 14 and the loading device 16 do not move downward any further, but the first stamping base 11, the punch 12 and the guide pillars 15 are able to go down continuously. Besides, the punch 12 does not pass through the steel ball 165 yet.

[0082] As for FIG. 6, the first stamping base 11, the punch 12 and the guide pillars 15 continuously moves downward. When the punch 12 passes through the steel ball 165, the steel ball 165 is pushed outward as well, the steel ball 165 pushes the second swing arm 1622, so as to let the first end 1641 of the positioning member 164 be withdrawn from the first penetrating portion 1611, the first swing arm 1621 compresses the elastic member 163.

[0083] Since the positioning member 164, originally supported the first object 91, is withdrawn from the first penetrating portion 1611, the first object 91 will drop from the first penetrating portion 1611 into the second penetrating portion 1661, and then onto the top portion of the second object 92. At this time, the first object 91 and the second object 92 are merely in contact with each other but have not yet been riveted together.

[0084] When the first object 91 falls into the second penetrating portion 1661, and the first detection element 167 detects the first object 91, the signal from the first detection element 167 will be sent to the servo system for controlling the first stamping base 11, the punch 12 and the guide pillars 15 to continuously move downward. Otherwise, if there is no the first object 91, the other signal will also be sent to the servo system for stopping the first stamping base 11, the punch 12 and the guide pillars 15 to move downward any further. The follow-up step is to let the maintenance staff check whether it is out of order or not.

[0085] Referring to FIG. 7, the first stamping base 11 drives the punch 12 to continuously move downward, and the punch 12 presses the first object 91 into the second object 92 for riveting them into a finished product.

[0086] When the first object 91 is pressed into the second object 92, it shears off the material at the corresponding position of the second object 92, embedding itself into the second object 92. The sheared-off material 921 from the corresponding position of the second object 92 is discharged out of the second stamping base 21 by means of the fourth penetrating portion 221 of the rivet base 22 and the third penetrating portion 211 of the second stamping base 21.

[0087] Next, the servo system controls the first stamping assembly 10 moving upward along the first direction F1. That is, it is back to the state in FIG. 4. Right after that, reloading another first object 91 and another second object 92 is to proceed with the stamping and riveting process for the next set of finished products.

[0088] For the structure of the first object 91 and the second object 92 being stamped and riveted to each other, the amplified views refer to FIG. 8 and FIG. 9. FIG. 8 illustrates that of the first object 91 and the second object 92 being not yet stamped and riveted together. FIG. 9 illustrates that of the first object 91 and the second object 92 being stamped and riveted together, resulting in a sheared material 921.

[0089] In accordance with FIG. 4 to FIG. 7, the aforesaid stamping and riveting processes will be further depicted as following. The dimensions of the first penetrating portion 1611 and the second penetrating portion 1661 are designed for allowing the first object 91 to go through. The dimensions of the third penetrating portion 211 and the fourth penetrating portion 221 are designed for allowing the shearing material 921 to go through.

[0090] The shapes of the first penetrating portion 1611, the second penetrating portion 1661, the third penetrating portion 211, and the fourth penetrating portion 221 can be designed according to the actual shapes of the first object 91 and the shearing material 921.

[0091] As an example, the first object 91 is a hexagonal nut, the cross-sections of the first penetrating portion 1611 and the second penetrating portion 1661 can be hexagonal or circular, or other shapes that allow the first object 91 to move smoothly within the first penetrating portion 1611 and the second penetrating portion 1661 along the first direction F1.

[0092] Similarly, the shapes of the third penetrating portion 211 and the fourth penetrating portion 221 can be designed according to the shape of the shearing material 921, or other shapes that allow the shearing material 921 to move smoothly within the third penetrating portion 211 and the fourth penetrating portion 221 along the first direction F1.

[0093] As illustrations in FIG. 4 and FIG. 10, the first object 91 and the second object 92 can be placed in by electric machinery or hands.

[0094] As shown in FIG. 10, by means of dedicated air pressure parameters cooperated with mechanisms, the first object 91 is blown to a pointed position, such as the loading device 16 in FIG. 4. The second object 92 is an elongated sheet material continuously fed into the mechanisms.

[0095] The first detection element 167 detects whether the first object 91 falls down or not; the second detection element 168 detects whether the first object 91A is in position or not.

[0096] As shown in FIG. 10, the first object 91 located below has been stamped and riveted to the second object 92; the other first object 91A located above has been in position. After the second object 92 that is stamped and riveted by the first object 91 is moved, the first object 91A will fall down to the top surface of the second object 92 for the next stamping and riveting process. Consequently, the following first objects 91B, 91C, 91D, and 91E will be the same processes as the first object 91A.

[0097] As a conclusion, the stamping and riveting mechanism provided by disclosure allows that the first and second objects can be ideally interlocked and riveted together directly through stamping, with no additional riveting equipment. The process is simple, fast, and provides stable quality, so as to reduce production costs.

[0098] With respect to the above description then, it is to be realized that the optimum dimensional relationships for the parts of the disclosure, to include variations in size, materials, shape, form, function and manner of operation, assembly and use, are deemed readily apparent and obvious to one skilled in the art, and all equivalent relationships to those illustrated in the drawings and described in the specification are intended to be encompassed by the present disclosure.

Examples

Embodiment Construction

[0038]In the following detailed description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the disclosed embodiments. It will be apparent, however, that one or more embodiments may be practiced without these specific details. In other instances, well-known structures and devices are schematically shown in order to simplify the drawing.

[0039]The terms “including”, “comprising”, “having” and the like mentioned in this disclosure are all open terms; i.e., implying only “including but not limited to”.

[0040]In the description of embodiments, when terms such as “first”, “second”, “third”, “fourth” etc. are used to describe elements, they are only used to distinguish these elements from each other, but not limit order or importance of any of these elements.

[0041]In the descriptions of various embodiments, the so-called “coupling” or “connection” may refer to two or a plurality of components making physical or electrical...

Claims

1. A stamping and riveting mechanism, comprising a first stamping assembly and a second stamping assembly that are arranged up and down and parallel to a first direction, the first stamping assembly being disposed above the second stamping assembly, the first stamping assembly being parallel to the first direction and moving corresponding to the second stamping assembly, the first stamping assembly providing a first object, the second stamping assembly providing a second object,the first stamping assembly comprising:a first stamping base;a punch, having a first top end and a first bottom end that are corresponding to each other, the first top end being disposed at the first stamping base, the first bottom end, toward the second stamping assembly, being parallel to the first direction;an unloading plate, disposed beneath the first stamping base;a movable part, having a second top end and a second bottom end that are corresponding to each other, the movable part being movably disposed through the first stamping base and parallel to the first direction, the second bottom end being connected with the unloading plate, therefore the first stamping base being parallel to the first direction and moving corresponding to the unloading plate;a plurality of guide pillars, each of the guide pillars having a third top end and a third bottom end, the third top end being disposed at the first stamping base, the third bottom end being toward the second stamping assembly, the guide pillars being movably disposed through the unloading plate and parallel to the first direction;a loading device, comprising:a base, disposed at the unloading plate, having a first penetrating portion that is parallel to the first direction and through the base, the first bottom end of the punch being parallel to the first direction and extending into the first penetrating portion for moving in the first penetrating portion along the first direction;a plurality of swing members, each of the swing members being disposed at the base via a pivot axis, the swing member symmetrically having two swing arms, a first swing arm and a second swing arm, based on the pivot axis, wherein the first swing arm is above the second swing arm;a plurality of elastic members, an elastic direction of each of the elastic members being parallel to a second direction, two ends of the elastic member along the elastic direction being against the first swing arm and the base respectively, wherein the second direction is perpendicular to the first direction;a plurality of positioning members, two ends of each of the positioning members along the second direction being a first end and a second end that are corresponding to each other, the first end being inserted into or withdrawn from the first penetrating portion, the second end being connected with the second swing arm;a plurality of steel balls, each of the steel balls being disposed in the base and between the pivot axis and the positioning member, the steel ball moving between a release position and a push position, the partial steel ball being inserted into the first penetrating portion while the steel ball is at the release position, the steel ball being withdrawn from the first penetrating portion while the steel ball is at the push position;a feed base, disposed on a bottom portion of the base, having a second penetrating portion, which is penetrated through the feed base along the first direction, the first penetrating portion and the second penetrating portion being allowed the first object to go through; andthe elastic member pushing the first swing arm outwardly while the steel ball is at the release position, the second swing arm driving the first end of the positioning member to insert into the first penetrating portion, the first end of the positioning member supporting the first object for keeping it in a suspended state; the steel ball being pushed outwardly while the punch passes through the steel ball, continuously, the steel ball pushing the second swing arm, so as to let the first end of the positioning member be withdrawn from the first penetrating portion, hence the first swing arm compressing the elastic member, the first object falling into the second penetrating portion from the first penetrating portion, finally to a top portion of the second object; andthe second stamping assembly comprising:a second stamping base, comprising a third penetrating portion and a plurality of guide holes, the third penetrating portion being through the second stamping base along the first direction, an axial direction of each of the guide holes being parallel to the first direction, each of the guide pillars being inserted into or withdrawn from the corresponding guide hole while the guide pillar moves along the first direction, the guide pillar being able to move in the guide hole along the first direction, the second stamping base being provided with a protrusion platform on each of its opposite sides, which are parallel to the second direction, and a recess being between the two protrusion platforms; anda rivet base, disposed within the recess of the second stamping base, comprising a fourth penetrating portion, which is parallel to the first direction and through the rivet base, the third penetrating portion and the fourth penetrating portion allowing a sheared material to pass through, wherein the sheared material is the product after the first object and the second object are stamped and riveted.

2. The stamping and riveting mechanism according to claim 1, wherein each of the swing members is assembled with the elastic member as one set, and each of the positioning members is assembled with the steel ball as another set, both sets being symmetrically disposed around peripheral of the first penetrating portion.

3. The stamping and riveting mechanism according to claim 1, wherein a projection range of the first penetrating portion of the base falls within a projection range of the second penetrating portion of the feed base.

4. The stamping and riveting mechanism according to claim 1, wherein the loading device comprises:a first detection element, disposed in the second penetrating portion, in order to detect whether the first object is in the second penetrating portion or not; anda second detection element, disposed in the first penetrating portion, in order to detect whether the first object is in the first penetrating portion or not.

5. The stamping and riveting mechanism according to claim 1, wherein a projection range of the third penetrating portion falls within a projection range of the fourth penetrating portion, the projection range of the fourth penetrating portion being equal to or greater than the projection range of the third penetrating portion.

6. The stamping and riveting mechanism according to claim 1, wherein projection ranges of the first penetrating portion and the second penetrating portion cover a projection range of the third penetrating portion, projection ranges of the first penetrating portion and the second penetrating portion being greater than a projection range of the third penetrating portion.

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