Rivet mounting device

Abstract

The utility model provides a rivet mounting device. The rivet mounting device comprises a support, a moving unit arranged on the support, a lifting air cylinder unit connected with the moving unit and a rivet grabbing disc. The lifting cylinder unit comprises a guide sleeve, a guide rod and a lifting cylinder; a cylinder body of the lifting cylinder is connected with the guide sleeve; a movable end of the lifting cylinder is connected with the guide rod; the rivet grabbing disc is arranged at one end of the guide rod; the rivet grabbing disc is provided with a plurality of suction nozzles, and the suction nozzles are used for grabbing rivets or putting the rivets; the moving unit drives the lifting cylinder unit to move between a first position and a second position; when the lifting air cylinder unit is located at the first position, each suction nozzle of the rivet grabbing disc grabs a rivet; and when the lifting air cylinder unit moves from the first position to the second position after grabbing the rivets, the rivet grabbing disc throws the rivets to the target position. The rivet grabbing disc of the rivet mounting device can grab the rivets at the rivet material device and put the rivets at the workpiece to be machined, so that the rivets can be quickly and accurately mounted.

Description

Technical Field

[0001] The utility model relates to the field of mechanical assembly, in particular to a rivet installation device. Background Art

[0002] Riveting is a key process in the manufacture of dual-mass flywheels. Quickly and accurately installing rivets before riveting is a key step to improve production efficiency and product quality. The assembly riveting of a dual-mass flywheel requires eight rivets. The existing rivet installation is done by operators manually placing them into the workpiece one by one, and then riveting them with riveting equipment. Manual installation is inefficient and prone to errors, so an efficient rivet installation device is needed for rivet installation before riveting a dual-mass flywheel.

[0003] It should be noted that the information disclosed in the above background technology section is only used to enhance the understanding of the background of the present invention, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0004] In view of the problems in the prior art, the purpose of the utility model is to provide a rivet installation device to achieve fast and accurate installation of rivets and reduce the workpiece processing cost.

[0005] The embodiment of the utility model provides a rivet installation device, comprising a bracket, a moving unit arranged on the bracket, a lifting cylinder unit connected to the moving unit, and a rivet grabbing plate;

[0006] The lifting cylinder unit comprises a guide sleeve, at least one guide rod passing through the guide sleeve, and a lifting cylinder;

[0007] The cylinder body of the lifting cylinder is connected to the guide sleeve, and the movable end of the lifting cylinder is connected to the guide rod;

[0008] The rivet grabbing plate is arranged at one end of the guide rod, and the rivet grabbing plate is provided with a plurality of suction nozzles, and the suction nozzles are used to grab rivets or drop rivets;

[0009] The moving unit drives the lifting cylinder unit to move between a first position and a second position;

[0010] When the lifting cylinder unit is in the first position, each of the suction nozzles of the rivet grabbing plate grabs a rivet;

[0011] When the lifting cylinder unit moves from the first position to the second position after grabbing the rivet, the rivet grabbing plate drops the rivet to the target position.

[0012] According to some examples of the present invention, the moving unit includes at least one longitudinally extending guide rail and a mounting plate slidably mounted on at least one of the guide rails, and the guide sleeve is connected to the mounting plate.

[0013] According to some examples of the present utility model, the moving unit is a rodless cylinder unit, which includes a cylinder, a piston disposed in the cylinder, a guide groove disposed in the cylinder, and a mounting plate slidably mounted in the guide groove and connected to the piston;

[0014] The guide sleeve is connected to the mounting plate.

[0015] According to some examples of the present invention, the rodless cylinder unit is connected to a pneumatic driver;

[0016] The pneumatic driver is used to adjust the air pressure in the cylinder and adjust the position of the piston;

[0017] The pneumatic actuator further comprises a first control unit and a switch electrically connected to the first control unit;

[0018] The mounting plate is controlled to switch between the first position and the second position by the switch and the movement control unit.

[0019] According to some examples of the present invention, the rivet installation device further includes at least one hydraulic buffer;

[0020] At least one hydraulic buffer is disposed on the guide rod on the first side and / or the second side of the guide sleeve.

[0021] According to some examples of the present utility model, the rivet installation device further includes at least one position sensor;

[0022] At least one position sensor is disposed at the first end and / or the second end of the guide rod.

[0023] According to some examples of the present invention, the suction nozzle is a vacuum suction nozzle, and each vacuum suction nozzle can be connected to a vacuum generator.

[0024] According to some examples of the present utility model, the rivet installation device also includes a handle disposed at one end of the guide rod.

[0025] According to some examples of the present utility model, the rivet installation device further includes a rivet material device;

[0026] The rivet material device comprises a vibrating hopper and a rivet supply tray;

[0027] The rivet feeding tray is provided with a plurality of mounting slots;

[0028] The vibrating hopper is used to place rivets in each mounting slot of the rivet supply tray.

[0029] According to some examples of the present invention, the rivet installation device further includes a loading platform for loading the dual-mass flywheel to be riveted.

[0030] The rivet installation device of the utility model enables the rivet grabbing plate to grab rivets at the rivet material device and drop rivets at the workpiece to be processed through the moving unit and the lifting cylinder unit, thereby realizing fast and accurate installation of rivets and reducing the workpiece processing cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Other features, objectives and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments made with reference to the following drawings.

[0032] Figure 1 This is a structural schematic diagram of a rivet installation device according to an embodiment of the utility model;

[0033] Figure 2 This is a structural schematic diagram of a rivet installation device according to another embodiment of the utility model;

[0034] Figure 3 This is a schematic structural diagram of a rivet material device according to an embodiment of the utility model;

[0035] Figure 4 and Figure 5 The figure is a schematic structural diagram of a rivet grabbing plate according to an embodiment of the utility model. DETAILED DESCRIPTION

[0036] Example embodiments will now be described more fully with reference to the accompanying drawings. However, example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein. On the contrary, these embodiments are provided so that the utility model will be comprehensive and complete, and the concept of the example embodiments will be fully conveyed to those skilled in the art. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the utility model, and should not be construed as limitations on the utility model. The same reference numerals in the figures represent the same or similar structures, and thus their repeated description will be omitted.

[0037] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0038] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or can communicate with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0039] The disclosure below provides many different embodiments or examples for realizing different structures of the utility model. In order to simplify the disclosure of the utility model, the components and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the utility model. In addition, the utility model can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, and does not indicate the relationship between the various embodiments and / or settings discussed in itself. In addition, the utility model provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0040] The utility model provides a rivet installation device, comprising a bracket, a mobile unit arranged on the bracket, a lifting cylinder unit connected to the mobile unit and a rivet grabbing plate; the lifting cylinder unit comprises a guide sleeve, at least one guide rod inserted through the guide sleeve and a lifting cylinder; the cylinder body of the lifting cylinder is connected to the guide sleeve, and the movable end of the lifting cylinder is connected to the guide rod; the rivet grabbing plate is arranged at one end of the guide rod; the rivet grabbing plate is provided with a plurality of suction nozzles, and the suction nozzles are used to grab rivets or drop rivets; the mobile unit drives the lifting cylinder unit to move between a first position and a second position; when the lifting cylinder unit is in the first position, each suction nozzle of the rivet grabbing plate grabs a rivet; when the lifting cylinder unit moves from the first position to the second position after grabbing the rivet, the rivet grabbing plate drops the rivet to the target position.

[0041] The rivet installation device of the utility model enables the rivet grabbing plate to grab rivets at the rivet material device and drop rivets at the workpiece to be processed through the moving unit and the lifting cylinder unit, thereby realizing fast and accurate installation of rivets and reducing the workpiece processing cost.

[0042] The structure of the rivet installation device of the present invention is further described below in conjunction with the accompanying drawings and specific embodiments. It can be understood that the various specific embodiments are not intended to limit the protection scope of the present invention.

[0043] Figure 1The rivet installation device of one embodiment of the utility model is a schematic diagram of the structure. Specifically, the rivet installation device includes a bracket, a mobile unit arranged on the bracket, a lifting cylinder unit connected to the mobile unit, and a rivet grabbing plate; wherein, it may include two support columns 1 and a crossbeam 11 arranged on the two support columns. In this embodiment, the crossbeam 11 can be arranged horizontally. In actual use, the structure of the bracket is not limited to Figure 1 The structure of the embodiment only needs to have a mounting surface on which the mobile unit can be mounted.

[0044] The moving unit drives the lifting cylinder unit to move between the first position and the second position. In this embodiment, the moving unit is a rodless cylinder unit, which includes a cylinder 31, a piston (not shown in the figure) disposed in the cylinder, a guide groove 32 disposed in the cylinder 31, and a mounting plate 33 connected to the piston. At the same time, the mounting plate 33 can be slidably mounted in the guide groove 32. When the piston of the rodless cylinder unit moves, it drives the mounting plate 33 to move along the extension direction of the guide groove. The cylinder 31 can be set on the crossbeam 11, and the extension direction of the cylinder 31 is the movement direction of the piston. The position of the cylinder or the movement direction of the piston can be set as needed. The advantage of using the above structure is that it can be connected to a pneumatic driver, and the pneumatic driver is used to adjust the air pressure in the cylinder 31 to adjust the position of the piston, that is, to adjust the position of the mounting plate 33.

[0045] In some other embodiments, the mobile unit includes at least one longitudinally extending guide rail and a mounting plate slidably mounted on at least one of the guide rails, and the guide sleeve is connected to the mounting plate. More specifically, two parallel guide rails can be provided, and the mounting plate can be slidably matched with the two guide rails through mounting grooves on the contact surfaces of the guide rails, and the other surface of the mounting plate is used to connect with the guide sleeve of the lifting cylinder unit described below.

[0046] The lifting cylinder unit includes a guide sleeve 21, at least one guide rod 22 and a lifting cylinder 23; the guide rod 22 is inserted into the guide sleeve 21. The cylinder body of the lifting cylinder 23 is connected to the guide sleeve 21, and the movable end (which can be a piston) of the lifting cylinder 23 is connected to the guide rod 22. In this embodiment, the movable end of the lifting cylinder 23 faces downward, and the rivet grabbing plate 4 is arranged at one end (lower end) of the guide rod 22. The mounting plate 33 of the mobile unit can be moved in a first direction, and the guide rod 22 can be arranged in a second direction. Similarly, the lifting cylinder 23 is also arranged in the second direction. Figure 1In the embodiment, the first direction may be a horizontal direction, and the second direction may be perpendicular to the first direction. The first direction and the second direction are not limited to the above description. The guide sleeve 21 is provided with two through holes along the second direction, and two guide rods 22 are respectively provided in the through holes. The lower end of the lifting cylinder 23 is fixedly connected to the guide sleeve 21, and the movable end of the lifting cylinder 23 is fixedly connected to the guide rod 22. The lower end of the lifting cylinder 23 is connected to the rivet grabbing plate 4, and the extension and retraction of the lifting cylinder 23 can control the height of the rivet grabbing plate 4 at its lower end. The lifting cylinder 23 may be a gas spring, still with Figure 1 Taking the embodiment as an example, under normal conditions, the air chamber of the lifting cylinder 23 is in a retracted state, that is, the rivet grabbing plate 4 is in a high position.

[0047] Figure 1 In the embodiment, the rivet installation device further includes a first hydraulic buffer 241 and a second hydraulic buffer 242. The first hydraulic buffer 241 and the second hydraulic buffer 242 can be respectively arranged on the guide rods 22 on both sides of the guide sleeve 21. At this time, the movable end of the lifting cylinder 23 can be connected to the guide rod 22 through the base of the second hydraulic buffer 242. When the lifting cylinder 23 is extended and retracted, the first hydraulic buffer 241 or the second hydraulic buffer 242 plays a role of buffering and decelerating the guide sleeve 21 in contact therewith to stop by means of hydraulic damping, so as to prevent the two ends of the guide rod from hard collision with the guide sleeve, thereby causing structural damage. The safety buffer of the first hydraulic buffer 241 or the second hydraulic buffer 242 can extend the service life of the rivet installation device.

[0048] Furthermore, the rivet installation device also includes a plurality of position sensors; Figure 1 In the embodiment of the present invention, a first position sensor 251 and a second position sensor 252 are provided, and the first position sensor 251 and the second position sensor 252 can be respectively provided at the first end (upper end) and / or the second end (lower end) of the guide rod 22. The first position sensor 251 and the second position sensor 252 can be proximity switches. In this case, the first position sensor 251 can be provided between the base of the first hydraulic buffer 241 and the upper end of the guide rod 22. When the first position sensor 251 senses or contacts the upper end of the guide rod 22 due to the extension of the lifting cylinder 23, the proximity switch is activated. The states of the first position sensor 251 and the second position sensor 252 can be associated with the gripping position of the rivet gripping plate and the placement position of the rivet gripping plate. At the same time, their states can be electrically connected to the control unit of the device, and different control instructions can be set according to the states of the first position sensor 251 and the second position sensor 252.

[0049] Figure 2 This is a schematic structural diagram of a rivet installation device according to another embodiment of the present invention, wherein the rivet installation device further includes a rivet material device 9 (see the dotted line frame), and further, Figure 3It is a structural schematic diagram of the rivet material device, which includes a vibrating hopper and a rivet supply tray 91; the rivet supply tray is provided with a plurality of mounting slots; the vibrating hopper is used to place rivets in a mounting slot 911 of the rivet supply tray 91. Figure 2 In the embodiment, the rivet installation device further comprises a loading platform 8, and the loading platform 8 can be configured to load the dual-mass flywheel A to be riveted.

[0050] The number and position of the suction nozzles 41 of the rivet grabbing plate 4 and the number and position of the mounting slots 911 of the rivet feeding plate 91 should be equivalent to the number and position of the rivets of the workpiece to be riveted. The dual-mass flywheel A to be riveted requires eight rivets evenly distributed circumferentially, then the number of suction nozzles 41 of the rivet grabbing plate 4 is eight, and the number of mounting slots 911 provided on the rivet feeding plate 91 can be eight, or a multiple of eight, such as sixteen, etc., but the positions of eight of the mounting slots 911 provided on the rivet feeding plate 91 must be equivalent to the positions of the suction nozzles 41 of the rivet grabbing plate 4.

[0051] Figure 2 In the embodiment, when the mobile unit drives the rivet grabbing plate 4 of the lifting cylinder unit to be above the rivet feeding plate 91 of the rivet material device, it is considered that the lifting cylinder unit is in the first position, and the lifting cylinder of the lifting cylinder unit is controlled, the rivet grabbing plate is close to the rivet feeding plate 91, and each suction nozzle 41 grabs a rivet loaded on the rivet feeding plate 91; when the lifting cylinder unit is in the position of grabbing the rivet, the mobile unit drives the rivet grabbing plate of the lifting cylinder unit to be above the dual-mass flywheel A to be riveted, it is considered that the lifting cylinder unit is in the second position, and the rivet grabbing plate drops the rivet B to the target position. The lifting cylinder unit reciprocates between the first position and the second position to grab and drop rivets, completing the rivet installation of multiple workpieces.

[0052] In the present invention, there are many ways for the suction nozzle 41 of the rivet grabbing plate 4 to grab and drop the rivet B. For example, Figure 4 and Figure 5The schematic diagram of the structure of the rivet grabbing plate of an embodiment of the utility model is shown in the figure, wherein the suction nozzle 41 is a vacuum suction nozzle. When in use, each vacuum suction nozzle is connected to the suction pipe of the vacuum generator, so as to adjust the vacuum degree at the vacuum suction nozzle. When it is necessary to grab rivet B, the vacuum suction nozzle can be evacuated to suck the rivet; when it is necessary to drop rivet B, the vacuum is inflated to release the vacuum, so that the grabbed rivet falls into the target position. After being precisely positioned by the moving unit and the lifting cylinder unit, the vacuum suction nozzle grabs the rivet more stably, solving the problems of easy over-grabbing and easy falling of rivets when the traditional air gripper grabs the rivet. In some embodiments, the negative pressure feedback mechanism of the vacuum generator can be set in the vacuum generator to realize real-time monitoring of whether the rivet is grabbed successfully. If the rivet falls off during the grabbing and handling process, the rivet grabbing plate re-executes the action of grabbing the rivet to ensure that the rivet can be grabbed. The above structure greatly improves the efficiency of grabbing the rivet.

[0053] It should be noted that when the lifting cylinder unit is in the first position to grab rivets or in the second position to drop rivets, the height of the rivet grabbing plate needs to be adjusted. For ease of operation, in an embodiment, the rivet installation device may further include a handle 5, which is arranged at one end of the guide rod 22. The handle 5 can be used to control the telescopic state (height) of the lifting cylinder, so that the rivet grabbing plate can be moved closer to or away from the rivet feeding plate, or the rivet grabbing plate can be controlled to be closer to or away from the workpiece to be riveted.

[0054] As mentioned above, in some embodiments, the rodless cylinder unit may be connected to a pneumatic driver, which is used to adjust the air pressure in the cylinder and adjust the position of the piston; the pneumatic driver also includes a first control unit (not shown in the figure) and a switch 6 electrically connected to the first control unit; Figure 1 or Figure 2 As shown, the mounting plate is switched between the first position and the second position by controlling the switch 6 and the movement control unit.

[0055] The rivet installation device of the utility model is still based on Figure 1Take the embodiment as an example. In the initial state, the lifting cylinder is in a retracted state, and the rivet grabbing plate rises to a relatively high position to be worked. The operator presses the switch 6, and the pneumatic driver drives the piston, the mounting plate, the lifting cylinder unit and the rivet grabbing plate thereon to move above the rivet feeding device. When it reaches the rivet feeding plate 91, the operator pulls the rivet feeding plate downward to the position through the handle 5. According to the state of the two position sensors, it is determined whether it has reached the grabbing position. If so, the system turns on the vacuum generator to drive the rivet grabbing plate to suck out the eight rivets in the rivet feeding plate at the same time. The operator releases the handle and presses the switch 6 when the rivet grabbing plate rises to the working position. The pneumatic driver drives the rivet grabbing plate to automatically move to the right above the workpiece to be riveted. The operator holds the handle 5 and pulls the rivet grabbing plate downward. According to the state of the two position sensors, when it is determined that the rivet grabbing plate is in the placement position, the system turns on the vacuum generator's vacuum breaking function to release the eight rivets on the rivet grabbing plate, and puts the eight rivets on the workpiece to be riveted at the same time. At this point, a rivet installation process is complete. Of course, the relative relationship between the initial position of the lifting cylinder (rivet grabbing plate) and the position of the rivet feeding plate can be different from the above position, and accordingly, the operation of the lifting cylinder during the installation process will also be different, which will not be repeated here.

[0056] It should be pointed out that in the technical solution of the rivet installation device of the utility model, the various functional modules and module units included therein can correspond to the specific hardware circuits in the integrated circuit structure, and therefore only involve the improvement of the specific hardware circuits. The hardware part is not merely a carrier for executing control software or computer programs, and therefore solving the corresponding technical problems and obtaining the corresponding technical effects do not involve the application of any control software or computer programs. In other words, the utility model can solve the technical problems to be solved and obtain the corresponding technical effects by only utilizing the improvements in the hardware circuit structure involved in these modules and units, and does not require the assistance of specific control software or computer programs to achieve the corresponding functions.

[0057] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

[0058] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A rivet installation device, characterized in that: It comprises a bracket, a moving unit arranged on the bracket, a lifting cylinder unit connected to the moving unit and a rivet grabbing plate; The lifting cylinder unit comprises a guide sleeve, at least one guide rod passing through the guide sleeve, and a lifting cylinder; The cylinder body of the lifting cylinder is connected to the guide sleeve, and the movable end of the lifting cylinder is connected to the guide rod; The rivet grabbing plate is arranged at one end of the guide rod, and the rivet grabbing plate is provided with a plurality of suction nozzles, and the suction nozzles are used to grab rivets or drop rivets; The moving unit drives the lifting cylinder unit to move between a first position and a second position; When the lifting cylinder unit is in the first position, each of the suction nozzles of the rivet grabbing plate grabs a rivet; When the lifting cylinder unit moves from the first position to the second position after grabbing the rivet, the rivet grabbing plate drops the rivet to the target position.

2. The rivet installation device according to claim 1, characterized in that: The moving unit comprises at least one longitudinally extending guide rail and a mounting plate slidably mounted on at least one of the guide rails, and the guide sleeve is connected to the mounting plate.

3. The rivet installation device according to claim 1, characterized in that: The moving unit is a rodless cylinder unit, which includes a cylinder, a piston disposed in the cylinder, a guide groove disposed in the cylinder, and a mounting plate slidably mounted in the guide groove and connected to the piston; The guide sleeve is connected to the mounting plate.

4. The rivet installation device according to claim 3, characterized in that: The rodless cylinder unit is connected to a pneumatic driver; The pneumatic driver is used to adjust the air pressure in the cylinder and adjust the position of the piston; The pneumatic actuator further comprises a first control unit and a switch electrically connected to the first control unit; The mounting plate is controlled to switch between the first position and the second position by the switch and the movement control unit.

5. The rivet installation device according to claim 1, characterized in that: Also includes at least one hydraulic buffer; At least one hydraulic buffer is disposed on the guide rod on the first side and / or the second side of the guide sleeve.

6. The rivet installation device according to claim 1, characterized in that: Also includes at least one position sensor; At least one position sensor is disposed at the first end and / or the second end of the guide rod.

7. The rivet installation device according to claim 1, characterized in that: The suction nozzles are vacuum suction nozzles, and each vacuum suction nozzle can be connected to a vacuum generator.

8. The rivet installation device according to claim 1, characterized in that: The utility model also comprises a handle which is arranged at one end of the guide rod.

9. The rivet installation device according to claim 1, characterized in that: Also includes a rivet material device; The rivet material device comprises a vibrating hopper and a rivet supply tray; The rivet feeding tray is provided with a plurality of mounting slots; The vibrating hopper is used to place rivets in each mounting slot of the rivet supply tray.

10. The rivet installation device according to claim 1, characterized in that: It also includes a loading station for loading the dual-mass flywheel to be riveted.

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