CN116673426A - Automatic spin riveting machine - Google Patents

Abstract

The application provides an automatic spin riveting machine, and belongs to the technical field of spin riveting machines; the riveting device comprises a base, a workbench is arranged on the base, a plurality of dovetail grooves are formed in the workbench and used for fixing a workpiece to be riveted on the workbench, a support frame is connected to the base in a sliding mode, a first mounting seat is arranged on the support frame, a third mounting seat is arranged on one side of the first mounting seat, a riveting head is arranged on the third mounting seat, and a translation unit used for driving the riveting head to move left and right is arranged on the first mounting seat. According to the application, the limit unit, the photoelectric sensor and the controller are arranged to be matched with the translation unit and the linear module, so that automatic positioning work of the riveting hole is realized, an existing mode of manually matching and positioning is replaced, accurate positioning of the riveting hole can be realized, the next riveting work is facilitated, the riveting efficiency is greatly improved, and the practicability is high.

Description

Automatic spin riveting machine

Technical Field

The application relates to the technical field of spin riveting machines, in particular to an automatic spin riveting machine.

Background

The rotary riveting machine is a novel riveting device developed according to the cold rolling principle, namely mechanical equipment for riveting articles by rivets, is mainly assembled by rotation and pressure, is mainly applied to occasions needing rivet riveting, and is commonly provided with pneumatic, hydraulic and electric specification types, such as single head type, double head type and the like, and is mainly used for riveting solid rivets or larger hollow rivets.

The common working mode of the existing spin riveting machine is as follows: the manual hand-held riveting machine is used for placing the riveting head of the riveting machine at the part to be riveted, and then driving the riveting machine to rivet the two workpieces, but the riveting position of the manual hand-held riveting machine is subjected to machining deviation due to manual shaking in the riveting process in a manual hand-held riveting mode, so that the riveting is unstable; meanwhile, the traditional riveting mode is fixed-point riveting, and the riveting head and the rivet rod of the rivet gun are not positioned on the same straight line during riveting, so that the air door of the rivet gun is gradually reduced from large to small, the center distance of the riveting head is continuously increased, and therefore, the machining error of the rivet gun is increased, an automatic spin riveting machine is mostly adopted at the present stage, the fixed-point riveting effect is improved, and the existing automatic spin riveting machine still has some problems in the using process.

For example, chinese patent publication No. CN115870447a discloses a screw mandrel riveter, which comprises an executing device and a base, wherein the executing device is located on the base and is connected with the base, and the executing device comprises a mounted frame: further comprises: the application drives the first servo motor to drive the whole installed seat to move by driving the first servo motor, thereby transporting the rivet joint of the rivet gun to a designated station, and simultaneously driving the gear motor to drive the rivet joint to rotate, thereby enabling the gear motor to rotate and rivet when riveting the joint, avoiding that the rivet joint of the rivet gun and the rivet rod are not positioned on the same straight line when riveting, enabling an air door of the gear motor to gradually become larger from small to large, reducing the processing error of the gear motor, and solving the problems that the existing rotary riveting machine is unstable in processing, the processing error is large, and the center distance of the rivet joint is increased due to the problem of a riveting mode, thereby increasing the processing error.

The riveting machine is lack of an effective positioning structure in the use process, most parts are fixed on a workbench through a clamp, manual positioning is easy to cause dislocation between a riveting head and a mounting hole, riveting effect is affected, practicability is low, and use is affected, so that the automatic riveting machine provided by the application meets requirements.

Disclosure of Invention

The technical problem to be solved by the application is to provide an automatic spin riveting machine for solving the problems mentioned in the background art.

In order to solve the technical problems, the application provides the following technical scheme:

the automatic spin riveting machine comprises a base, wherein a workbench is arranged on the base, a plurality of dovetail grooves are formed in the workbench and used for fixing a workpiece to be riveted on the workbench, a support frame is connected to the base in a sliding mode, a first mounting seat is arranged on the support frame, a third mounting seat is arranged on one side of the first mounting seat, a riveting head is arranged on the third mounting seat, a translation unit used for driving the riveting head to move left and right is arranged on the first mounting seat, a second mounting seat is arranged on one side of the translation unit, a lifting unit used for driving the riveting head to move up and down is arranged on the second mounting seat, the third mounting seat is arranged at the output end of the lifting unit, and a positioning unit used for positioning a riveting hole of the workpiece is arranged on the second mounting seat;

the positioning unit comprises a mounting plate arranged on the second mounting seat, a plurality of through holes are formed in the mounting plate, a plurality of mounting blocks are arranged on one side of the mounting plate, corresponding to the through holes, photoelectric sensors are arranged above the through holes on the mounting blocks, a controller is arranged on the second mounting seat, the photoelectric sensors are connected with the controller through electric control, a workpiece to be riveted is arranged on the workbench, and a limiting unit for assisting in positioning the riveting holes is arranged on the workpiece to be riveted.

Preferably, the base is further provided with a linear module, the output end of the linear module is fixedly connected with the support frame, the support frame is driven to move through the linear module, and then the translation unit on the support frame is driven to move back and forth.

Preferably, the translation unit is including installing in first motor of first mount pad one side, rotate respectively on the first mount pad and be connected with first screw rod and guiding axle, just the output of first motor with first screw rod linkage, sliding connection has first slide on the first mount pad, just first slide threaded connection in on the first screw rod, the guiding axle peg graft in on the first slide for guide to first slide, just second mount pad fixed connection in on the first slide.

Preferably, the lifting unit comprises a second motor arranged on one side of the second mounting seat, a worm is rotationally connected to the second mounting seat, the output end of the second motor is linked with the worm, a second screw rod is rotationally connected to the second mounting seat, a worm wheel is fixedly connected to the second screw rod, the worm is meshed with the worm wheel, a second sliding seat is slidably connected to the second mounting seat, and the second sliding seat is in threaded connection with the second screw rod.

Preferably, the two sides of the second sliding seat are provided with sliding blocks, a sliding groove is formed in the second installation seat, and the sliding blocks are connected in the sliding groove in a sliding mode.

Preferably, the limiting unit comprises a first rotary table, a second rotary table is rotationally connected to the first rotary table, a plurality of arc grooves are formed in the first rotary table, a plurality of linear grooves are formed in the second rotary table, a sliding block is slidably connected to the linear grooves, a positioning shaft is fixedly connected to the sliding block, the positioning shaft is slidably connected to the arc grooves, the positioning shafts are all in the inner walls of the riveting holes and are in contact with each other, and an infrared emitter is mounted on the second rotary table.

Preferably, a compression spring is arranged on the linear groove, and one end of the compression spring is fixedly connected with the sliding block.

Preferably, the control unit is used for controlling the rotation of the rivet head, a third motor is installed on the third installation seat, the output end of the third motor is linked with the rivet head, the control unit comprises a telescopic rod installed on the third installation seat, the output end of the telescopic rod is fixedly connected with a bottom plate, a pressure sensor is arranged on the bottom plate, and the pressure sensor is electrically connected with the controller.

Preferably, the controller is respectively connected with the linear module, the first motor, the second motor and the third motor through electrical control.

Compared with the prior art, the application has at least the following beneficial effects:

in the above-mentioned scheme, through setting up spacing unit, photoelectric sensor and controller, with translation unit and sharp module cooperation, realize the automatic positioning work in riveting hole, replaced current mode that needs artifical cooperation location, can realize accurate riveting hole location, do benefit to the riveting work of next step, improved riveting efficiency greatly, the practicality is high.

Through setting up telescopic link, pressure sensor and controller, at the in-process that the rivet head descends, pressure sensor receives pressure, gives the controller send signal, and it is rotatory through controller control rivet head, when pressure sensor did not feel pressure, inform rotatoryly through controller control rivet head, reducible third motor's operating time improves life, further improves the practicality.

Drawings

The accompanying drawings, which are incorporated herein and form a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the disclosure and to enable a person skilled in the pertinent art to make and use the disclosure.

FIG. 1 is a schematic perspective view of an automatic spin riveting machine;

FIG. 2 is an enlarged schematic view of the area A in FIG. 1;

FIG. 3 is a schematic view of a partially cut-away perspective structure of an automatic spin riveting machine;

FIG. 4 is an enlarged view of area B of FIG. 3;

FIG. 5 is an enlarged schematic view of the area C in FIG. 3;

FIG. 6 is a partially cut-away enlarged schematic view of a positioning unit;

FIG. 7 is an enlarged schematic view of the area D in FIG. 6;

FIG. 8 is a schematic diagram of a three-dimensional enlarged structure of a limiting unit.

[ reference numerals ]

1. A base; 2. a work table; 3. a support frame; 4. a first mount; 5. a translation unit; 6. a second mounting base; 7. a lifting unit; 8. a third mount; 9. a positioning unit; 10. a control unit; 11. a first motor; 12. a first screw; 13. a guide shaft; 14. a first slider; 15. a second motor; 16. a worm; 17. a second screw; 18. a worm wheel; 19. a second slider; 20. a mounting plate; 21. a mounting block; 22. a photoelectric sensor; 23. a controller; 24. a first turntable; 25. a second turntable; 26. an arc-shaped groove; 27. a linear groove; 28. a slide block; 29. positioning a shaft; 30. a compression spring; 31. an infrared emitter; 32. a telescopic rod; 33. a bottom plate; 34. a pressure sensor.

While particular structures and devices are shown in the drawings to enable a clear implementation of embodiments of the application, this is for illustrative purposes only and is not intended to limit the application to the particular structures, devices and environments, which may be modified or adapted by those of ordinary skill in the art, as desired, and which remain within the scope of the appended claims.

Detailed Description

The application provides an automatic spin riveting machine which is described in detail below with reference to the accompanying drawings and specific embodiments. While the application has been described herein in terms of the preferred and preferred embodiments, the following embodiments are intended to be more illustrative, and may be implemented in many alternative ways as will occur to those of skill in the art; and the accompanying drawings are only for the purpose of describing the embodiments more specifically and are not intended to limit the application specifically.

It should be noted that references in the specification to "one embodiment," "an example embodiment," "some embodiments," etc., indicate that the embodiment described may include a particular feature, structure, or characteristic, but every embodiment may not necessarily include the particular feature, structure, or characteristic. Further, when a particular feature, structure, or characteristic is described in connection with an embodiment, it is submitted that it is within the knowledge of one skilled in the relevant art to effect such feature, structure, or characteristic in connection with other embodiments whether or not explicitly described.

Generally, the terminology may be understood, at least in part, from the use of context. For example, the term "one or more" as used herein may be used to describe any feature, structure, or characteristic in a singular sense, or may be used to describe a combination of features, structures, or characteristics in a plural sense, depending at least in part on the context. In addition, the term "based on" may be understood as not necessarily intended to convey an exclusive set of factors, but may instead, depending at least in part on the context, allow for other factors that are not necessarily explicitly described.

As used herein, the term "nominal" refers to a desired or target value for a characteristic or parameter of a component or process operation, and a range of values above and/or below the desired value, that is set during a design phase of a production or manufacturing process. The range of values may be due to slight variations in manufacturing processes or tolerances. As used herein, the term "about" indicates a given amount of value that may vary based on the particular technology node associated with the subject semiconductor device. Based on a particular technology node, the term "about" may indicate a given amount of a value that varies, for example, within 5% -15% of the value (e.g., ±5%, ±10% or±15%).

It will be understood that the meanings of "on … …", "over … …" and "over … …" in this disclosure should be interpreted in the broadest sense so that "on … …" means not only "directly on" but also includes meaning "directly on" something with intervening features or layers therebetween, and "over … …" or "over … …" means not only "on" or "over" something, but also may include its meaning "on" or "over" something without intervening features or layers therebetween.

Furthermore, spatially relative terms such as "under …," "under …," "lower," "above …," "upper," and the like may be used herein for ease of description to describe one element or feature's relationship to another element or feature as illustrated in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented and the spatially relative descriptors used herein may similarly be interpreted accordingly.

As shown in fig. 1-3, an embodiment of the present application provides an automatic riveting machine, including a base 1, a workbench 2 is provided on the base 1, a plurality of dovetail grooves are provided on the workbench 2, for fixing a workpiece to be riveted on the workbench 2, a support frame 3 is slidably connected on the base 1, a first mounting seat 4 is provided on the support frame 3, a third mounting seat 8 is provided on one side of the first mounting seat 4, a riveting head is mounted on the third mounting seat 8, a translation unit 5 for driving the riveting head to move left and right is provided on the first mounting seat 4, a linear module is further provided on the base 1, an output end of the linear module is fixedly connected with the support frame 3, the linear module drives the support frame 3 to move through the linear module, and further drives the translation unit 5 on the support frame 3 to move back and forth, the linear module is not shown in the prior art, a second mounting seat 6 is arranged on one side of the translation unit 5, a lifting unit 7 for driving the rivet joint to move up and down is arranged on the second mounting seat 6, a third mounting seat 8 is arranged at the output end of the lifting unit 7, a positioning unit 9 for positioning a workpiece rivet hole is arranged on the second mounting seat 6, the workpiece is firstly arranged on the workbench 2, the rivet joint is driven to move horizontally through the cooperation of the translation unit 5 and the linear module until the corresponding positions of the rivet joint and the rivet hole are sensed through the positioning unit 9, then the rivet joint is driven to move to the position right above the rivet hole through the translation unit 5 and the linear module, then the lifting unit 7 is started to drive the rivet joint to descend, after the rivet joint descends to a moving distance, the rivet joint is controlled to rotate through the arrangement of the control unit 10, the rivet joint is driven to rivet with the continued descent, the rivet joint is riveted, through the setting of positioning unit 9, replaced current automatic riveter structure soon, realized carrying out the accurate positioning before riveting, guaranteed riveting efficiency, the practicality is high.

As shown in fig. 1-2 and fig. 6-8, the positioning unit 9 includes a mounting plate 20 mounted on the second mounting seat 6, a plurality of through holes are formed in the mounting plate 20, a plurality of mounting blocks 21 are mounted on one side of the mounting plate 20 corresponding to the through holes, a photoelectric sensor 22 is mounted above the mounting block 21 corresponding to the through holes, a controller 23 is mounted on the second mounting seat 6, the photoelectric sensor 22 is connected with the controller 23 through electrical control, a workpiece to be riveted is arranged on the workbench 2, a limiting unit for assisting in positioning the riveting holes is arranged on the workpiece to be riveted, the limiting unit includes a first turntable 24, a second turntable 25 is rotatably connected to the first turntable 24, a plurality of arc grooves 26 are formed in the first turntable 24, a plurality of straight grooves 27 are formed in the second turntable 25, a sliding block 28 is slidably connected to the straight grooves 27, a positioning shaft 29 is fixedly connected to the sliding block 28, the positioning shaft 29 is slidably connected to the arc grooves 26, the positioning shafts 29 are all abutted against the inner walls of the riveting holes, an infrared emitter 31 is mounted on the second turntable 25, and a compression spring 30 is fixedly connected to one end of the compression spring 30 of the compression spring 28.

Firstly, keeping a second rotary table 25 still, rotating a first rotary table 24, driving a sliding block 28 and a positioning shaft 29 to move through the cooperation of an arc groove 26 and a linear groove 27, enabling the positioning shafts 29 to be close to each other, enabling the positioning shafts 29 to be inserted into a riveting hole, compressing a compression spring 30 under the force, inserting the positioning shafts 29 into the riveting hole, loosening the first rotary table 24, pushing the sliding block 28 and the positioning shaft 29 to move under the action of the compression spring 30 until the positioning shaft 29 is in contact with the inner wall of the riveting hole, and realizing automatic centering installation, wherein the infrared emitter 31 and the axis of the riveting hole are positioned on the same vertical line;

after the limiting unit is fixed on the riveting hole of the workpiece, the infrared emitter 31 is started, then the riveting head and the photoelectric sensor 22 are controlled to move through the translation unit 5 and the linear module, the photoelectric sensor 22 and the infrared emitter 31 are enabled to pass through the through hole on the mounting plate 20 until the infrared emitter 31 is perceived by one of the photoelectric sensors 22, at the moment, the controller 23 controls the riveting head to stop moving, the horizontal distance between the photoelectric sensor 22 and the riveting head is known, when the photoelectric sensor 22 is aligned with the infrared emitter 31, the controller 23 controls the riveting head to move a certain distance, the riveting head is aligned with the riveting hole, then the limiting unit is taken out, the controller 23 controls the starting lifting unit 7 to drive the riveting head to descend, in the descending process of the riveting head, the control unit 10 is triggered, the riveting head is controlled to rotate, the riveting head is enabled to descend in a rotating mode, the riveting work on the workpiece is achieved, the accurate riveting hole positioning is replaced by the setting of the positioning unit 9, the accurate riveting hole positioning can be achieved, the next riveting work is facilitated, and the efficiency is greatly improved, and the practicability is high.

As shown in fig. 1, the translation unit 5 includes a first motor 11 installed on one side of a first mount 4, the first mount 4 is respectively rotatably connected with a first screw 12 and a guide shaft 13, an output end of the first motor 11 is linked with the first screw 12, the first mount 4 is slidably connected with a first slide seat 14, the first slide seat 14 is in threaded connection with the first screw 12, the guide shaft 13 is inserted on the first slide seat 14 and used for guiding the first slide seat 14, and the second mount 6 is fixedly connected with the first slide seat 14.

As shown in fig. 1 and 4, the lifting unit 7 includes a second motor 15 installed at one side of a second installation seat 6, a worm 16 is connected in the second installation seat 6 in a rotating manner, an output end of the second motor 15 is linked with the worm 16, a second screw 17 is connected in the second installation seat 6 in a rotating manner, a worm wheel 18 is fixedly connected to the second screw 17, the worm 16 is meshed with the worm wheel 18, a second sliding seat 19 is connected in the second installation seat 6 in a sliding manner, the second sliding seat 19 is connected to the second screw 17 in a threaded manner, sliding blocks are arranged at two sides of the second sliding seat 19, sliding grooves are formed in the second installation seat 6, the sliding blocks are connected in the sliding grooves in a sliding manner, and the controller 23 is respectively connected with the linear module, the first motor 11, the second motor 15 and the third motor in an electrical control manner through the sliding blocks and the sliding grooves.

As shown in fig. 1, fig. 3 and fig. 5, the automatic riveting device further comprises a control unit 10 for controlling the rotation of the riveting head, a third motor is installed on the third installation seat 8, the output end of the third motor is linked with the riveting head, the control unit 10 comprises a telescopic rod 32 installed on the third installation seat 8, the output end of the telescopic rod 32 is fixedly connected with a bottom plate 33, a pressure sensor 34 is arranged on the bottom plate 33, the pressure sensor 34 is electrically connected with the controller 23, the pressure sensor 34 senses the pressure in the falling process of the riveting head when the bottom plate 33 is abutted against the workbench, a signal is sent to the controller 23, the third motor is controlled to start through the controller 23, the riveting head is further driven to rotate, the automatic rotation riveting in the falling process of the riveting head is realized, the current rotation is performed before the falling of the riveting head is replaced, the working time of the third motor is shortened, the service life is prolonged, the third motor can be controlled to stop in the same way when the pressure sensor 34 is separated from the workbench 2 in the rising process of the riveting head, the automatic stopping of the third motor is realized, the automatic stopping of the third motor can be reduced, the working time is further improved, and the practicability is further improved.

The application is intended to cover any alternatives, modifications, equivalents, and variations that fall within the spirit and scope of the application. In the following description of preferred embodiments of the application, specific details are set forth in order to provide a thorough understanding of the application, and the application will be fully understood to those skilled in the art without such details. In other instances, well-known methods, procedures, flows, components, circuits, and the like have not been described in detail so as not to unnecessarily obscure aspects of the present application.

Those of ordinary skill in the art will appreciate that all or a portion of the steps in implementing the methods of the embodiments described above may be implemented by a program that instructs associated hardware, and the program may be stored on a computer readable storage medium, such as: ROM/RAM, magnetic disks, optical disks, etc.

The foregoing is merely a preferred embodiment of the present application and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present application, which are intended to be comprehended within the scope of the present application.

Claims (9)

1. The automatic spin riveting machine is characterized by comprising a base (1), wherein a workbench (2) is arranged on the base (1), a plurality of dovetail grooves are formed in the workbench (2) and used for fixing a workpiece to be riveted on the workbench (2), a support frame (3) is connected to the base (1) in a sliding mode, a first mounting seat (4) is arranged on the support frame (3), a third mounting seat (8) is arranged on one side of the first mounting seat (4), a riveting head is arranged on the third mounting seat (8), a third motor is arranged on the third mounting seat (8), the output end of the third motor is in linkage with the riveting head, a translation unit (5) used for driving the riveting head to move left and right is arranged on the first mounting seat (4), a lifting unit (7) used for driving the riveting head to move up and down is arranged on one side of the translation unit (5), and a positioning hole is formed in the second mounting seat (6), and the third mounting seat (8) is arranged on the lifting unit (9) for positioning the workpiece;

the positioning unit (9) comprises a mounting plate (20) arranged on the second mounting seat (6), a plurality of through holes are formed in the mounting plate (20), a plurality of mounting blocks (21) are arranged on one side of the mounting plate (20) corresponding to the through holes, photoelectric sensors (22) are arranged on the mounting blocks (21) corresponding to the upper sides of the through holes, a controller (23) is arranged on the second mounting seat (6), the photoelectric sensors (22) are connected with the controller (23) through electrical control, a workpiece to be riveted is arranged on the workbench (2), and a limiting unit for assisting in positioning the riveting holes is arranged on the workpiece to be riveted.

2. The automatic spin riveting machine according to claim 1, wherein the base (1) is further provided with a linear module, an output end of the linear module is fixedly connected with the support frame (3), and the linear module drives the support frame (3) to move, so that the translation unit (5) on the support frame (3) is driven to move back and forth.

3. The automatic spin riveting machine according to claim 2, wherein the translation unit (5) comprises a first motor (11) installed on one side of the first installation seat (4), a first screw (12) and a guide shaft (13) are respectively connected to the first installation seat (4) in a rotating mode, an output end of the first motor (11) is linked with the first screw (12), a first sliding seat (14) is connected to the first installation seat (4) in a sliding mode, the first sliding seat (14) is connected to the first screw (12) in a threaded mode, the guide shaft (13) is inserted onto the first sliding seat (14) and used for guiding the first sliding seat (14), and the second installation seat (6) is fixedly connected to the first sliding seat (14).

4. An automatic riveting machine according to claim 3, characterized in that the lifting unit (7) comprises a second motor (15) mounted on one side of the second mounting seat (6), a worm (16) is rotatably connected to the second mounting seat (6), the output end of the second motor (15) is linked with the worm (16), a second screw (17) is rotatably connected to the second mounting seat (6), a worm wheel (18) is fixedly connected to the second screw (17), the worm (16) is meshed with the worm wheel (18), a second sliding seat (19) is slidably connected to the second mounting seat (6), and the second sliding seat (19) is in threaded connection with the second screw (17).

5. The automatic spin riveting machine according to claim 4, wherein the two sides of the second slide seat (19) are provided with sliding blocks, the second mounting seat (6) is internally provided with sliding grooves, and the sliding blocks are slidably connected in the sliding grooves.

6. The automatic spin riveting machine according to claim 1, wherein the limiting unit comprises a first rotary table (24), a second rotary table (25) is rotatably connected to the first rotary table (24), a plurality of arc grooves (26) are formed in the first rotary table (24), a plurality of linear grooves (27) are formed in the second rotary table (25), a sliding block (28) is slidably connected to the linear grooves (27), a positioning shaft (29) is fixedly connected to the sliding block (28), the positioning shaft (29) is slidably connected to the arc grooves (26), the positioning shafts (29) are all abutted against the inner wall of the riveting hole, and an infrared emitter (31) is mounted on the second rotary table (25).

7. The automatic spin riveting machine according to claim 6, characterized in that the linear groove (27) is provided with a compression spring (30), and one end of the compression spring (30) is fixedly connected with the slider (28).

8. An automatic riveter according to claim 1, further comprising a control unit (10) for controlling the rotation of the rivet head, wherein the control unit (10) comprises a telescopic rod (32) mounted on the third mounting seat (8), the output end of the telescopic rod (32) is fixedly connected with a bottom plate (33), a pressure sensor (34) is arranged on the bottom plate (33), and the pressure sensor (34) is electrically connected with the controller (23).

9. The automatic riveting machine according to claim 4, characterized in that the controller (23) is electrically connected to the linear module, the first motor (11), the second motor (15) and the third motor, respectively.