CN114393122B - Multi-point riveting mechanism - Google Patents
Multi-point riveting mechanism Download PDFInfo
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- CN114393122B CN114393122B CN202111550810.0A CN202111550810A CN114393122B CN 114393122 B CN114393122 B CN 114393122B CN 202111550810 A CN202111550810 A CN 202111550810A CN 114393122 B CN114393122 B CN 114393122B
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- 230000007246 mechanism Effects 0.000 title claims abstract description 37
- 230000000712 assembly Effects 0.000 claims abstract description 19
- 238000000429 assembly Methods 0.000 claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 230000033001 locomotion Effects 0.000 claims description 11
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 9
- 230000005540 biological transmission Effects 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 230000000875 corresponding effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000000641 cold extrusion Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
- B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices
- B21D43/003—Positioning devices
Abstract
The invention discloses a multi-point riveting mechanism, which comprises: the center of the rotating disc is provided with a squeeze riveting working space; the connecting rod assemblies are circumferentially arranged on the rotating disc and comprise rotating ends and squeeze riveting ends, the rotating ends are connected with the rotating disc, the squeeze riveting ends face the center of the rotating disc and correspond to the squeeze riveting working spaces; the driving device is arranged on one side of the rotating disc and used for driving the rotating disc to rotate; when all the rotating ends of the connecting rod assemblies rotate along with the rotating disc, all the squeeze riveting ends of the connecting rod assemblies can slide towards the center of the rotating disc and simultaneously extend into the squeeze riveting working space. The invention effectively solves the problems of low production efficiency and low precision of the tubular workpiece that the circumferential riveting needs to be carried out for a plurality of times.
Description
Technical Field
The invention relates to the field of machining, in particular to a multi-point pressure riveting mechanism.
Background
The riveting press is a novel riveting device developed according to the cold rolling principle, and forms a stress-free concentrated internal embedded round dot with certain tensile strength and shear strength according to cold extrusion deformation of the plate material.
For mutually nested tubular workpieces, uniform riveting in the circumferential direction is needed to enable the structure of the tubular workpieces to be more stable. At present, the tubular workpiece needs to rotate for many times and rivet for many times to realize the structure, so the following problems exist in the prior art: 1. the time consumption of repeated riveting processing is long, and the production efficiency is low; 2. and the angle error is easy to generate due to multiple times of rotation, so that the press riveting positions are uneven, and the tubular workpiece structure is unstable.
Disclosure of Invention
Therefore, the embodiment of the invention provides a multi-point riveting mechanism, which effectively solves the problems that circumferential riveting of a tubular workpiece needs to be performed for a plurality of times, and has low production efficiency and low precision.
The embodiment of the invention provides a multi-point riveting mechanism, which comprises: the center of the rotating disc is provided with a squeeze riveting working space; the connecting rod assemblies are circumferentially arranged on the rotating disc and comprise rotating ends and squeeze riveting ends, the rotating ends are connected with the rotating disc, the squeeze riveting ends face the center of the rotating disc and correspond to the squeeze riveting working spaces; the driving device is arranged on one side of the rotating disc and used for driving the rotating disc to rotate; when all the rotating ends of the connecting rod assemblies rotate along with the rotating disc, all the squeeze riveting ends of the connecting rod assemblies can slide towards the center of the rotating disc and simultaneously extend into the squeeze riveting working space.
Compared with the prior art, the technical effect achieved after the technical scheme is adopted is as follows: the rotating ends of the connecting rod assemblies simultaneously rotate along with the rotating disc, so that the riveting ends are pushed to slide towards the riveting working space, meanwhile, the tubular workpiece in the riveting working space is subjected to multi-direction and multi-point riveting, the riveting working procedure of the tubular workpiece is completed once, rotation is not needed, repeated riveting is not needed, production efficiency is higher, errors caused by rotation are avoided, riveting positions are even, accuracy is high, and structural strength of the tubular workpiece is further improved.
In one embodiment of the present invention, the multi-point squeeze riveter mechanism includes: the fixed disk, the rolling disk is located fixed disk one side, fixed disk circumference is equipped with a plurality of connecting rod guide slots, the connecting rod guide slot is located the fixed disk is towards one side of rolling disk, the link assembly is located the connecting rod guide slot.
The technical effect achieved after the technical scheme is adopted is as follows: the fixed disk is kept static in the rotating process of the rotating disk, namely, each connecting rod guide groove is kept static, the connecting rod guide grooves play a role in guiding the connecting rod assembly, the transmission direction of the connecting rod assembly is limited, and the riveting action of the connecting rod assembly is more accurate.
In one embodiment of the present invention, the link guide groove includes: the translation guide groove is arranged along the radial direction of the fixed disc and is communicated with the squeeze riveting working space; and the rotation guide groove is communicated with one side of the translation guide groove, which is far away from the squeeze riveting working space.
The technical effect achieved after the technical scheme is adopted is as follows: the rotary guide groove is used for limiting the rotation range of the connecting rod assembly, so that the sliding distance of the connecting rod assembly in the translational guide groove is determined, the press riveting depth is limited, damage to the tubular workpiece caused by the fact that press riveting is too deep is avoided, and the fact that embedded dots are not formed in the tubular workpiece caused by the fact that press riveting is too shallow is avoided.
In one embodiment of the present invention, the connecting rod assembly includes: the first connecting rod is arranged in the translation guide groove, and the squeeze riveting end is arranged in the first connecting rod; the second connecting rod is arranged in the rotation guide groove and hinged to one side, away from the squeeze riveting end, of the first connecting rod, the rotation end is arranged on one side, away from the first connecting rod, of the second connecting rod, and the rotation end is hinged to the rotation disc.
The technical effect achieved after the technical scheme is adopted is as follows: when the rotating end rotates along with the rotating disc, namely the second connecting rod sweeps in the rotating guide groove, the second connecting rod pushes the first connecting rod to slide in the translational guide groove towards the press riveting working space, the included angle between the second connecting rod and the first connecting rod is gradually reduced until the second connecting rod and the first connecting rod are in the same straight line, and the press riveting end reaches the maximum depth to finish press riveting; when the rotating disc is reversed, the included angle between the second connecting rod and the first connecting rod is increased, the second connecting rod pulls the first connecting rod to retract, so that the tubular workpiece is conveniently taken out, and press riveting of other parts is performed.
In one embodiment of the present invention, the fixed disk includes: the rotating disc is arranged in the rotating disc movement groove; the driving opening is arranged on any side of the rotating disc movement groove and is communicated with the rotating disc movement groove; the rotating disc is provided with an extending piece, and the extending piece extends out of the driving opening and is connected with the driving device.
The technical effect achieved after the technical scheme is adopted is as follows: the driving opening is convenient for the driving device to control the rotating disc to rotate, and meanwhile, the driving opening also limits the rotating range of the extension piece, so that the phenomenon that the riveting depth of the connecting rod assembly is overlarge due to overlarge rotating angle of the rotating disc is avoided.
In one embodiment of the invention, the driving means comprises: the output piece is arranged tangentially along the rotating disc and hinged to the extension piece; and the linear driving mechanism is connected with the output piece and pushes the output piece to move.
The technical effect achieved after the technical scheme is adopted is as follows: the linear driving mechanism pushes the output piece to move, so that one end of the output piece connected with the extension piece slides tangentially along the rotating disc, and the steering wheel is pushed or pulled to rotate, and the riveting action and the retracting action of the connecting rod assembly are realized.
In one embodiment of the present invention, the multi-point clinching mechanism further includes: and the displacement sensor is arranged on one side of the extension piece far away from the driving device and used for detecting the displacement of the extension piece.
The technical effect achieved after the technical scheme is adopted is as follows: the displacement sensor obtains a signal according to the displacement of the extension piece, and the driving device acts or stops according to the signal, so that the rotation angle of the rotating disc is accurately controlled, and the riveting depth of the connecting rod assembly is accurately controlled.
In one embodiment of the present invention, the multi-point clinching mechanism further includes: the support disc is arranged on one side, far away from the fixed disc, of the rotating disc and is connected with the fixed disc, a workpiece mounting cavity is arranged in the center of the support disc, and the workpiece mounting cavity is communicated with the squeeze riveting working space.
The technical effect achieved after the technical scheme is adopted is as follows: the support disc is used for supporting the rotating disc and the connecting rod assembly, so that the rotating disc can stably rotate, and the press riveting end of the connecting rod assembly is prevented from sagging; the tubular workpiece to be subjected to press riveting processing can be installed in the press riveting working space from the workpiece installation cavity so as to be convenient for press riveting.
In one embodiment of the present invention, the multi-point clinching mechanism further includes: and the clamp is arranged on one side of the support disc, which is far away from the fixed disc, and at least comprises clamping heads positioned on two sides of the workpiece mounting cavity.
The technical effect achieved after the technical scheme is adopted is as follows: the clamp is used for fixing the tubular workpiece in the workpiece mounting cavity, so that the tubular workpiece can extend into the press riveting working space; the tubular workpiece is not easy to shake in the riveting process, and is more stable.
In one embodiment of the present invention, the multi-point clinching mechanism further includes: model discernment subassembly is located support dish one side, and/or anchor clamps one side, model discernment subassembly includes: photoelectric sensor and indicator.
The technical effect achieved after the technical scheme is adopted is as follows: the number and the positions of the marker can represent various types through permutation and combination; the photoelectric sensors are used for determining whether the detection positions of the photoelectric sensors have the marks, and the detection results of the photoelectric sensors form finished model information, so that the model of the supporting disc or the clamp is determined; the driving device adopts preset action quantity according to the detection result of the photoelectric sensor, and because the tubular workpiece to be processed is matched with the clamp, the tubular workpiece can be subjected to riveting action with proper depth according to the preset action quantity of the clamp model, and the tubular workpiece reaches enough strength.
In summary, the foregoing embodiments of the present application may have one or more of the following advantages or benefits: i) The rotating ends of the connecting rod assemblies simultaneously rotate along with the rotating disc, the second connecting rod sweeps in the rotating guide groove so as to push the first connecting rod to slide in the translation guide groove, the riveting end stretches into the riveting working space to rivet the tubular workpiece to be processed, so that the circumferential multipoint simultaneous riveting of the tubular workpiece is realized, the riveting efficiency is improved, errors caused by the fact that the tubular workpiece rotates to switch the riveting position are avoided, and the riveting precision is improved; ii) the displacement sensor can control the rotation angle of the rotating disc, so that the press riveting depth of the press riveting end is controlled, and different press riveting depths are adopted for tubular workpieces with different sizes, so that the tubular workpieces are prevented from being damaged; iii) The photoelectric sensor detects the positions and the number of the marking pieces to obtain the corresponding clamp types, and the clamp is matched with the tubular workpiece, so that the driving device controls the riveting depth of the riveting end according to the detection result of the photoelectric sensor, the tubular workpiece is not damaged due to too deep and the strength of the riveting position is not enough due to too shallow.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of a multi-point riveting mechanism according to an embodiment of the present invention.
Fig. 2 is an exploded view of the multi-point clinching mechanism of fig. 1.
Fig. 3 is another exploded view of the multi-point clinching mechanism of fig. 2.
Fig. 4 is a schematic illustration of the connection of the rotating disc and the connecting rod assembly of fig. 3.
FIG. 5 is a schematic view of the connection of the rotating disc and the connecting rod assembly of FIG. 4 from another perspective.
Fig. 6 is a schematic view of the connection of the connecting rod assembly and the inner fixed plate of fig. 4.
Fig. 7 is a schematic diagram of the connection of the driving assembly in fig. 2.
Fig. 8 is a schematic view of the structure of the clamp in fig. 2.
Description of main reference numerals:
100 is a multi-point press riveting mechanism; 110 is a rotating disc; 110a is a first rotating disc; 110b is a second rotating disc; 111 is a squeeze rivet working space; 112 is an extension; 113 is a first connection block; 114 is a first connecting slot; 120 is a connecting rod assembly; 121 is a rotating end; 122 is a press-riveting end; 123 is a first link; 124 is a second link; 130 is a driving device; 131 is an output member; 132 is a linear drive mechanism; 133 is a displacement sensor; 134 is a top block; 135 is a spring; 140 is a fixed disk; 140a is an inner fixed disk; 140b is an outer fixed disk; 141 is a connecting rod guide groove; 142 is a translational guide slot; 143 is a rotation guide groove; 144 is a rotating disc movement groove; 145 is a drive opening; 146 is a second connection block; 147 is a second connecting groove; 148 is a guide block; 149a is a first pin hole; 149b is a second pin hole; 150 is a support plate; 151 is a workpiece mounting cavity; 160 is a clamp; 170 is a model identification component; 171 is a photosensor; 172 are markers; 180 is a panel; 181 is a first opening; 200 is a tubular workpiece.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-6, a multi-point squeeze riveter mechanism 100 is provided according to an embodiment of the present invention, comprising: a rotating disk 110, a plurality of linkage assemblies 120, and a driving device 130. Wherein, the center of the rotating disc 110 is provided with a squeeze riveting working space 111; the plurality of connecting rod assemblies 120 are circumferentially arranged on the rotating disc 110, the connecting rod assemblies 120 comprise rotating ends 121 and squeeze riveting ends 122, the rotating ends 121 are connected with the rotating disc 110, the squeeze riveting ends 122 face the center of the rotating disc 110, and the squeeze riveting working spaces 111 correspond to each other; the driving device 130 is disposed on one side of the rotating disc 110, and is used for driving the rotating disc 110 to rotate.
In this embodiment, when the rotating ends 121 of all the link assemblies 120 rotate along with the rotating disc 110, the press-riveting ends 122 of all the link assemblies 120 can slide towards the center of the rotating disc 110 and simultaneously extend into the press-riveting working space 111, so that circumferential multi-point press-riveting is performed on the tubular workpiece 200 to be processed in the press-riveting working space 111, the press-riveting process of the tubular workpiece 200 is completed once, the press-riveting position is not required to be switched by rotation, so that the production efficiency is higher, meanwhile, errors generated by rotation are avoided, the press-riveting position is more uniform, the press-riveting precision is higher, and the structural strength of the tubular workpiece 200 is further improved.
In one particular embodiment, the multi-point squeeze riveter mechanism 100 includes, for example: the fixed disk 140, the rotating disk 110 is arranged on one side of the fixed disk 140, a plurality of connecting rod guide grooves 141 are formed in the circumferential direction of the fixed disk 140, the connecting rod guide grooves 141 are formed in one side of the fixed disk 140 facing the rotating disk 110, and the connecting rod assembly 120 is arranged in the connecting rod guide grooves 141. The connecting rod guiding groove 141 plays a guiding role on the connecting rod assembly 120, and defines the transmission direction of the connecting rod assembly 120, so that the press rivet end 122 of the connecting rod assembly 120 can accurately enter the press rivet working space 111 along with the connecting rod guiding groove 141.
Preferably, the multi-point squeeze riveter 100 includes a panel 180, for example, and the panel 180 is provided with a first opening 181. The fixing plate 140 is connected to the bottom of the panel 180, the first opening 181 is communicated with the press-riveting working space 111, and the tubular workpiece 200 to be processed can be loaded into the press-riveting working space 111 from the first opening 181 or removed from the press-riveting working space 111 to the first opening 181.
Preferably, the fixed disk 140 includes, for example, an inner fixed disk 140a and an outer fixed disk 140b. Wherein, the outer fixing plate 140b is connected with the panel 180, the inner fixing plate 140a is connected with one side of the outer fixing plate 140b far away from the panel 180, and the connecting rod guide groove 141 is arranged on the inner fixing plate 140a. When the size of the tubular workpiece 200 does not match the current linkage assembly 120, quick replacement of the linkage assembly 120 may be accomplished by removing the inner fixed disk 140a to match a different sized tubular workpiece 200.
Further, the inner fixing plate 140a is provided with a plurality of first pin holes 149a, for example, and the outer fixing plate 140b is provided with a plurality of second pin holes 149b, for example, wherein the first pin holes 149a and the second pin holes 149b are connected by positioning pins, so that the inner fixing plate 140a and the outer fixing plate 140b do not relatively rotate and are easily disassembled. For example, the first pin holes 149a may be circumferentially uniformly formed in the inner fixing plate 140a, and the second pin holes 149b may be circumferentially formed in the outer fixing plate 140b, which is not limited herein.
Preferably, the rotating disc 110 is sleeved outside the inner fixed disc 140a and the plurality of connecting rod assemblies 120, so that the rotating disc 110 rotates relative to the inner fixed disc 140a to realize transmission of the connecting rod assemblies 120, and meanwhile, the rotating disc 110 realizes axial fixation through the inner fixed disc 140a.
Further, the rotating disk 110 includes, for example: a first rotating disc 110a and a second rotating disc 110b, wherein the first rotating disc 110a is provided at the top of the inner fixed disc 140a, and the first rotating disc 110a is provided with a second opening, wherein the diameter of the second opening is smaller than that of the inner fixed disc 140a, so that the inner fixed disc 140a can support the first rotating disc 110 a; the second rotating disc 110b is disposed at the bottom of the inner fixed disc 140a and connected to the first rotating disc 110a outside the inner fixed disc 140a, so that the first rotating disc 110a and the second rotating disc 110b can rotate synchronously, and the driving device 130 can be connected to the first rotating disc 110a or the second rotating disc 110b in a transmission manner.
Still further, the first rotary disk 110a is provided with, for example, a first connection block 113, the first connection block 113 being provided on the peripheral side of the first rotary disk 110 a; the second rotating disc 110b is provided with a first connecting groove 114, for example, and the first connecting groove 114 is provided on the circumferential side of the second rotating disc 110b, wherein the first connecting block 113 and the first connecting groove 114 are inserted and connected to realize synchronous rotation of the first rotating disc 110a and the second rotating disc 110b. For example, the first connecting blocks 113 are disposed on two opposite sides of the first rotating disc 110a, and the first connecting grooves 114 are disposed on two opposite sides of the second rotating disc 110b, so as to realize stable transmission of the first rotating disc 110a and the second rotating disc 110b. Of course, the positions of the first connection block 113 and the first connection groove 114 may be interchanged, which is not limited herein.
In a specific embodiment, the link guide groove 141 includes, for example: the translational guide groove 142 is radially arranged along the fixed disc 140 and is communicated with the press riveting working space 111, so that the connecting rod assembly 120 can be accurately press riveted to the radial position of the tubular workpiece 200 to be processed; the rotary guide groove 143 is communicated with one side of the translational guide groove 142 far away from the press riveting working space 111 and is used for limiting the rotation range of the connecting rod assembly 120, so that the sliding distance of the connecting rod assembly 120 in the translational guide groove 142 is determined, the press riveting depth is limited, the damage to the tubular workpiece 200 caused by the too deep press riveting is avoided, and the phenomenon that the embedded round dots are not formed in the tubular workpiece 200 caused by the too shallow press riveting is avoided, so that the strength of the press riveting position is insufficient.
Preferably, the link assembly 120 includes, for example: the first connecting rod 123 is arranged in the translation guide groove 142, and the squeeze riveting end 122 is arranged in the first connecting rod 123; the second connecting rod 124 is disposed in the rotation guiding slot 143 and hinged to the side of the first connecting rod 123 away from the press riveting end 122, and the rotation end 121 is disposed on the side of the second connecting rod 124 away from the first connecting rod 123.
It should be noted that, on the one hand, when the rotating end 121 rotates along with the rotating disc 110, that is, the second connecting rod 124 sweeps in the rotation guiding slot 143, the second connecting rod 124 pushes the first connecting rod 123 to slide in the translation guiding slot 142 toward the squeeze rivet working space 111; in this process, the included angle between the second connecting rod 124 and the first connecting rod 123 is gradually reduced until the second connecting rod and the first connecting rod are in the same line, the press-riveting end 122 reaches the maximum depth, and press-riveting is completed, and of course, the press-riveting end 122 can be retracted when the maximum depth is not reached by the control of the driving device 130. On the other hand, when the driving device 130 controls the rotating disc 110 to rotate reversely, the included angle between the second connecting rod 124 and the first connecting rod 123 increases, and the second connecting rod 124 pulls the first connecting rod 123 to retract, so that the tubular workpiece 200 is conveniently taken out, and the press riveting of other parts is performed.
Further, the rotating end 121 is hinged to the rotating disc 110. For example, the second link 124 is provided with an axle seat located at the rotating end 121. Wherein, the shaft seat is provided with the rotating shaft, and the rotating shaft is rotationally connected with the second rotating disc 110b; accordingly, the second rotating disc 110b is circumferentially provided with a plurality of shaft holes for simultaneously rotating and connecting the plurality of second links 124, thereby realizing simultaneous transmission of the plurality of link assemblies 120.
Still further, the inner fixing plate 140a further includes a guide block 148, where the guide block 148 is disposed on the side of the rotation guide slot 143, and a sliding slot is formed on the side of the guide block 148 away from the translation guide slot 142, and the shaft seat of the second connecting rod 124 slides in the sliding slot, so that the transmission process of the second connecting rod 124 is more stable.
In a specific embodiment, referring to fig. 3-4, the holding pan 140 includes, for example: the rotating disk 110 is provided in the rotating disk movement groove 144. For example, the rotating disc moving groove 144 is located at a side of the outer fixed disc 140b facing the rotating disc 110, and the first rotating disc 110a is disposed in the rotating disc moving groove 144 to rotate, so as to avoid radial movement of the first rotating disc 110a during the movement process, and improve the stability of the rotating disc 110.
In a specific embodiment, the fixed disk 140 further includes, for example: a driving opening 145, the driving opening 145 being provided at either side of the rotating disc moving groove 144 and communicating with the rotating disc moving groove 144; correspondingly, the rotating disc 110 is provided with an extension piece 112, and the extension piece 112 extends out of the driving opening 145 and is connected with the driving device 130. For example, on the basis that the rotating disc moving groove 144 is located on the outer fixed disc 140b, the driving opening 145 is formed at the bottom of the side wall of the outer fixed disc 140b, for limiting the rotation range of the extension member 112, so as to avoid the excessive riveting depth of the connecting rod assembly 120 caused by the excessive rotation angle of the rotating disc 110; the extension member 112 extends out of the driving opening 145 to avoid interference of the driving device 130 with the fixed disk 140 during transmission.
In a specific embodiment, in connection with fig. 7, the driving device 130 comprises, for example: the output member 131 and the linear driving mechanism 132, wherein the output member 131 is tangentially arranged along the rotating disc 110 and hinged to the extension member 112; the linear driving mechanism 132 is connected to the output member 131 and pushes the output member 131 to move. For example, the driving device 130 is, for example, an electric cylinder, and an output shaft of the electric cylinder is fixedly connected with the output member 131 coaxially, so as to push or pull the output member 131 to rotate the extension member 112 and the rotating disc 110, thereby realizing the riveting action and the retracting action of the connecting rod assembly 120.
Of course, the driving device 130 may also be a motor and a crank slider mechanism (not shown in the drawings), the motor controlling the crank rotation, and the slider effecting the linear motion of the output member 131, which is not limited herein.
In a specific embodiment, the multi-point squeeze riveter mechanism 100 further includes, for example: the displacement sensor 133 is disposed on a side of the extension member 112 away from the driving device 130, and is configured to detect a displacement of the extension member 112. It should be noted that, the displacement sensor 133 obtains a signal according to the displacement of the extension member 112, and the driving device 130 acts or stops according to the signal, so as to precisely control the rotation angle of the rotating disc 110 and precisely control the riveting depth of the connecting rod assembly 120.
Preferably, the multi-point riveting mechanism 100 includes, for example, a top block 134 and a spring 135, which are disposed between the displacement sensor 133 and the extension member 112, wherein when the driving device 130 pushes the extension member 112, the extension member 112 pushes the top block 134 to move, so that the spring 135 is compressed, the displacement sensor 133 detects the elastic force of the spring 135, thereby obtaining the displacement of the extension member 112, and thus realizing accurate control of the riveting depth of the connecting rod assembly 120; when the driving device 130 pulls the extension 112, the top block 134 is restored to the original position by the elastic force of the spring 135.
In a specific embodiment, the multi-point squeeze riveter mechanism 100 further includes, for example: the support plate 150, the support plate 150 locates the one side of the rotating plate 110 far away from the fixed plate 140, and connect with fixed plate 140. For example, the support plate 150 and the outer fixing plate 140b are connected by, for example, a plurality of circumferentially arranged fasteners, thereby being relatively fixed. Such as a screw or pin.
It should be noted that, the support plate 150 can support the rotating plate 110 and the link assembly 120, so as to stably rotate the rotating plate 110, and prevent the squeeze rivet end 122 of the link assembly 120 from sagging.
Preferably, the outer fixing plate 140b is provided with a second connection groove 146, for example, and the support plate 150 is provided with a corresponding second connection groove 147, and the second connection groove 147 and the second connection groove 146 cooperate, so that the support plate 150 is prevented from rotating with the rotating plate 110 when supporting the rotating plate 110.
Preferably, the center of the support plate 150 is provided with a workpiece mounting cavity 151, the workpiece mounting cavity 151 is communicated with the press-riveting working space 111, and the tubular workpiece 200 to be press-riveted can be loaded into the press-riveting working space 111 from the workpiece mounting cavity 151 so as to facilitate the press-riveting working procedure.
In a specific embodiment, in conjunction with fig. 8, the multi-point squeeze riveter mechanism 100 further includes, for example: the clamp 160 is disposed on one side of the support plate 150 away from the fixing plate 140, and the clamp 160 at least comprises clamping heads disposed on two sides of the workpiece mounting cavity 151, and is used for fixing the tubular workpiece 200 in the workpiece mounting cavity 151, so that the tubular workpiece 200 is more stable during processing in the squeeze riveting working space 111.
In a specific embodiment, with continued reference to FIGS. 1-4, the multi-point squeeze riveter mechanism 100 further includes, for example: the model identifying component 170 is disposed on one side of the support plate 150 and/or one side of the clamp 160, and is used for identifying the model of the support plate 150 or the clamp 160, and the driving device 130 controls the link assembly 120 to adopt corresponding actions, such as different riveting depths or speeds, according to the model of the support plate 150 or the clamp 160, which is not limited herein.
Preferably, the model identification component 170 includes, for example: the photoelectric sensor 171 and the marking members 172, wherein the marking members 172 are screws or other detachable fasteners, each marking member 172 corresponds to one photoelectric sensor 171, and a plurality of photoelectric sensors 171 can be combined to form one finished model information according to the existence of the marking members 172, so that the model of the supporting disk 150 or the clamp 160 is determined; the tubular workpiece 200 to be processed is matched with the clamp 160 and the support plate 150, so that the tubular workpiece 200 can be subjected to appropriate riveting action according to the model of the support plate 150 or the clamp 160, and the tubular workpiece 200 has enough strength. For example, the number of the markers 172 is 4, and the total number of the markers 172 can correspond to different model information in 16, and accordingly, the driving device 130 can adopt 16 different driving modes, which is not limited herein.
Preferably, the photoelectric sensor 171 is connected to the panel 180, for example, through a fixing piece, and the photoelectric sensor 171 faces the support plate 150, and a corresponding side surface of the support plate 150 is provided with a plurality of threaded holes, for example, and the marking member 172 is detachably connected to the threaded holes, so that the photoelectric sensor 171 can determine the model of the support plate 150 according to the marking member 172 of the support plate 150. Of course, the photoelectric sensor 171 may be fixed on the side of the support plate 150 away from the fixed plate 140 and facing the fixture 160, and a plurality of threaded holes are provided on the fixture 160 and detachably connected with the indicator 172, so that the photoelectric sensor 171 can determine the model of the fixture 160 according to the indicator 172 of the fixture 160.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (7)
1. A multipoint press riveting mechanism, comprising:
the center of the rotating disc is provided with a squeeze riveting working space;
the connecting rod assemblies are circumferentially arranged on the rotating disc and comprise rotating ends and squeeze riveting ends, the rotating ends are connected with the rotating disc, the squeeze riveting ends face the center of the rotating disc and correspond to the squeeze riveting working spaces;
the driving device is arranged on one side of the rotating disc and used for driving the rotating disc to rotate;
when all the rotating ends of the connecting rod assemblies rotate along with the rotating disc, the squeeze rivet ends of all the connecting rod assemblies can slide towards the center of the rotating disc and simultaneously extend into the squeeze rivet working space;
the multi-point riveting mechanism comprises: the fixed disc is arranged on one side of the fixed disc, a plurality of connecting rod guide grooves are formed in the circumference of the fixed disc, the connecting rod guide grooves are formed in one side, facing the rotating disc, of the fixed disc, and the connecting rod assembly is arranged in the connecting rod guide grooves;
the link guide groove includes: the translation guide groove is arranged along the radial direction of the fixed disc and is communicated with the squeeze riveting working space; the translation guide groove is communicated with one side of the press riveting working space;
the connecting rod assembly includes: the first connecting rod is arranged in the translation guide groove, and the squeeze riveting end is arranged in the first connecting rod; the second connecting rod is arranged in the rotation guide groove and hinged to one side, away from the press riveting end, of the first connecting rod, the rotation end is arranged on one side, away from the first connecting rod, of the second connecting rod, and the rotation end is hinged to the rotation disc;
the fixed disc comprises an inner fixed disc and an outer fixed disc, and the connecting rod guide groove is formed in the inner fixed disc;
the second connecting rod is provided with a shaft seat, and the shaft seat is positioned at the rotating end;
the inner fixing disc comprises a guide block, the guide block is arranged on one side of the rotating guide groove, a sliding groove is formed in one side, away from the translation guide groove, of the guide block, and the shaft seat of the second connecting rod slides in the sliding groove.
2. The multipoint press riveting mechanism of claim 1, wherein the fixed disk comprises:
the rotating disc is arranged in the rotating disc movement groove;
the driving opening is arranged on any side of the rotating disc movement groove and is communicated with the rotating disc movement groove;
the rotating disc is provided with an extending piece, and the extending piece extends out of the driving opening and is connected with the driving device.
3. The multipoint press riveting mechanism according to claim 2, wherein the driving means comprises:
the output piece is arranged tangentially along the rotating disc and hinged to the extension piece;
and the linear driving mechanism is connected with the output piece and pushes the output piece to move.
4. The multi-point clinching mechanism of claim 2, further comprising:
and the displacement sensor is arranged on one side of the extension piece far away from the driving device and used for detecting the displacement of the extension piece.
5. The multi-point clinching mechanism of any one of claims 1 to 4, further comprising:
the support disc is arranged on one side, far away from the fixed disc, of the rotating disc and is connected with the fixed disc, a workpiece mounting cavity is arranged in the center of the support disc, and the workpiece mounting cavity is communicated with the squeeze riveting working space.
6. The multi-point clinching mechanism of claim 5, further comprising:
and the clamp is arranged on one side of the support disc, which is far away from the fixed disc, and at least comprises clamping heads positioned on two sides of the workpiece mounting cavity.
7. The multi-point clinching mechanism of claim 6, further comprising:
model discernment subassembly is located support dish one side, and/or anchor clamps one side, model discernment subassembly includes: photoelectric sensor and indicator.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111550810.0A CN114393122B (en) | 2021-12-17 | 2021-12-17 | Multi-point riveting mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111550810.0A CN114393122B (en) | 2021-12-17 | 2021-12-17 | Multi-point riveting mechanism |
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| CN114393122A CN114393122A (en) | 2022-04-26 |
| CN114393122B true CN114393122B (en) | 2024-04-12 |
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| CN202111550810.0A Active CN114393122B (en) | 2021-12-17 | 2021-12-17 | Multi-point riveting mechanism |
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|---|---|
| CN114393122A (en) | 2022-04-26 |
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