Automatic mushroom head nail riveting equipment and control method

Abstract

The invention relates to automatic mushroom head nail riveting equipment and a control method. The automatic mushroom head nail riveting equipment comprises a pressing riveting module, a vibration discharging module, a material staggering module, a product positioning jig, a carrying module and a discharging module. The press riveting module is provided with a press riveting head and is used for riveting a product. The vibration discharging module is provided with a vibration disc and used for conveying and discharging the mushroom head nails. The material staggering module is provided with a bearing assembly and a staggering air cylinder, the bearing assembly is used for bearing the mushroom head nails at the discharging end of the vibration discharging module and limiting the maximum offset of the mushroom head nails, and the staggering air cylinder is used for moving the bearing assembly to the rivet pressing module so that the mushroom head nails can be located under rivet pressing heads. The product positioning jig is used for positioning a product. The carrying module is used for adsorbing the products on the product positioning jig and transferring the products to the rivet pressing module so that the riveting holes in the products can correspond to the mushroom head nails. The discharging module is used for moving the products subjected to press riveting machining to the next working procedure.

Description

Technical Field

[0001] The present invention relates to the technical field of automated riveting equipment, and particularly to an automatic mushroom head rivet equipment and a control method therefor. Background Art

[0002] The rivets of the KB parts of traditional laptop computers are mainly processed by the form of manual nail placement and riveting with a punching machine, which is time-consuming and laborious and has low production efficiency. Therefore, an automatic integrated equipment for nail placement and riveting is now mostly used for riveting.

[0003] However, since the mushroom head rivets are riveted to the KB parts of the laptop computer, the specifications are small and the structure is complex. The size of the mushroom head rivet is only 2.1×3.9 mm, and the accuracy requirements for nail placement and riveting are relatively high. The maximum offset of the nails of the existing automatic riveting equipment is usually about 0.5 mm on one side, which is not applicable to the mushroom head rivets, and it is easy to cause the mushroom head rivets to be offset and misaligned during press riveting, resulting in poor riveting of the mushroom head rivets or the phenomenon that one side is not riveted in place. At the same time, the existing automatic riveting equipment performs multi-nail placement and riveting in one process, which is more likely to increase the abnormal rate of product processing. Summary of the Invention

[0004] The purpose of the present invention is to provide an automatic mushroom head rivet equipment and a control method therefor, which can limit the maximum offset of the mushroom head rivets, and only perform single-nail automatic nail placement and riveting in one process, reduce the abnormal rate of product processing, improve the production efficiency, and reduce the labor cost.

[0005] To achieve the above object, according to the first aspect of the present invention, there is provided an automatic mushroom head rivet equipment, including:

[0006] A press riveting module, provided with a press riveting head, for riveting the product;

[0007] A vibrating feeding module, provided with a vibrating disk, for conveying and discharging the mushroom head rivets;

[0008] A misfeeding module, provided with a receiving component and a misalignment cylinder, the receiving component is used for receiving the mushroom head rivets at the discharging end of the vibrating feeding module and restricting the maximum offset of the mushroom head rivets within the receiving component and during the movement of the receiving component, and the misalignment cylinder is used for moving the receiving component to the press riveting module so that the mushroom head rivets are located directly below the press riveting head;

[0009] A product positioning fixture, for positioning the product;

[0010] A handling module, for adsorbing the product on the product positioning fixture and transferring the product to the press riveting module so that the riveting holes on the product correspond to the mushroom head rivets;

[0011] The blanking module is used to move the products completed with press riveting to the next process;

[0012] The automatic mushroom head rivet device is set to automatically arrange the rivets through the misfeeding module in cooperation with the handling module, and automatically rivet through the press riveting module.

[0013] Optionally, the unilateral position of the mushroom head rivet relative to the riveting hole on the product does not exceed 0.1 mm.

[0014] Optionally, the receiving component includes:

[0015] A receiving block, connected to the movable end of the misalignment cylinder;

[0016] A receiving boss, arranged on the receiving block, and the receiving boss corresponds to the discharging end of the vibrating blanking module;

[0017] A plurality of limiting claws, arranged around the receiving boss and away from the discharging end of the vibrating blanking module to enable the receiving boss to smoothly receive the mushroom head rivet;

[0018] A plurality of telescopic grooves are formed in the receiving block, and the plurality of telescopic grooves correspond to the plurality of limiting claws one by one. A single limiting claw is arranged in the corresponding telescopic groove through a telescopic spring and its end extends out of the telescopic groove.

[0019] Optionally, the side of the limiting claw facing the mushroom head rivet is a fitting surface, and the part of the fitting surface in contact with the mushroom head rivet is fitted to limit and correct the deviation of the mushroom head rivet.

[0020] Optionally, the misfeeding module further includes:

[0021] A limiting plate, perpendicular to the side surface of the discharging end of the vibrating blanking module and the end surface of the side facing the receiving component is flush with the end surface of the discharging end of the vibrating blanking module, and is used to cooperate with the plurality of limiting claws to limit the maximum offset amount during the conveying of the mushroom head rivet and the assembly with the product.

[0022] Optionally, the misfeeding module further includes a check component, and the check component includes:

[0023] A fixed table, arranged on the side of the discharging end of the vibrating blanking module away from the press riveting module, and a fixing plate is arranged on the fixed table, and the fixing plate is parallel to the side surface of the discharging end of the vibrating blanking module;

[0024] A check block, arranged on the fixing plate through a movable rod, one end of the movable rod is connected to the check block, the other end of the movable rod extends outwards through the fixing plate, and a limiting plate is arranged at the other end of the movable rod;

[0025] A non-return spring, which is sleeved on the movable rod and arranged between the non-return block and the fixed plate;

[0026] The check block is configured to move back and forth along a direction perpendicular to the axis of the discharge end of the vibration discharge module, and is used to block the discharge end of the vibration discharge module when the offset cylinder moves the receiving assembly to the riveting module.

[0027] Optionally, the non-return assembly further comprises:

[0028] A guide plate is arranged on the fixing platform and is perpendicular to the fixing plate, and is used for guiding the check block.

[0029] According to a second aspect of the present invention, a control method for an automatic mushroom head riveting device is provided, characterized in that it comprises the following steps:

[0030] Controlling the vibrating discharging module to convey the mushroom head nail to the receiving boss of the receiving component;

[0031] Controlling the offset cylinder to move the receiving assembly to the rivet die set so that the mushroom head nail is located directly below the rivet head;

[0032] Control the transport module to absorb the product on the product positioning fixture and transfer the product to the riveting module so that the riveting hole on the product corresponds to the mushroom head nail;

[0033] Controlling the riveting module to rivet the product;

[0034] The blanking module is controlled to move the product that has been riveted to the next process.

[0035] The beneficial effects of the present invention are as follows: automatic swing riveting is performed by cooperating with the material error module and the handling module, and automatic riveting is performed by the riveting module, so as to improve production efficiency and reduce labor costs; the maximum offset of the mushroom head nail is limited by the receiving component, and only a single nail swing riveting is performed in one process, which can reduce the product processing abnormality rate.

[0036] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] Figure 1 It is a first schematic structural diagram of an automatic mushroom head riveting nail device shown in an embodiment of the present invention;

[0038] Figure 2 A second schematic structural diagram of an automatic mushroom head riveting nail device shown in an embodiment of the present invention;

[0039] Figure 3 It is a schematic structural diagram of a material error module of an automatic mushroom head riveting nail device shown in an embodiment of the present invention;

[0040] Figure 4 It is a schematic structural diagram of a receiving component of an automatic mushroom head riveting nail device shown in an embodiment of the present invention;

[0041] Figure 5 It is a schematic structural diagram of a non-return assembly of an automatic riveting mushroom head nail device shown in an embodiment of the present invention;

[0042] Figure 6 It is a schematic flow chart of a control method of a material error module of an automatic riveting mushroom head nail device shown in an embodiment of the present invention;

[0043] In the figure: 1. Riveting module; 11. Riveting head; 2. Vibration discharging module; 21. Vibration plate; 3. Misalignment module; 31. Receiver assembly; 311. Receiver block; 3111. Telescopic slot; 312. Receiver boss; 313. Limiting claw; 3131. Main limiting claw; 3132. Auxiliary limiting claw; 32. Misalignment cylinder; 33. Support table; 34. Limiting plate; 35. Check assembly; 351. Fixed table; 352. Fixed plate; 353. Check block; 354. Movable rod; 355. Limiting plate; 356. Guide plate; 4. Product positioning fixture; 5. Handling module; 6. Unloading module. DETAILED DESCRIPTION

[0044] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0045] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" 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 or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations. In addition, the technical features involved in different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0047] Please refer to Figure 1 and Figure 2 , an automatic riveting mushroom head nail device shown in a preferred embodiment of the present application includes a riveting module 1, a vibrating feeding module 2, a misalignment module 3, a product positioning fixture 4, a handling module 5, and a blanking module 6. The riveting module 1 is provided with a riveting head 11 for riveting the product. The vibrating feeding module 2 is provided with a vibrating disk 21 for conveying and discharging the mushroom head nails. The misalignment module 3 is provided with a receiving component 31 and a misalignment cylinder 32. The receiving component 31 is used to receive the mushroom head nails at the discharging end of the vibrating feeding module 2 and limit their maximum offset within the receiving component and during the movement of the receiving component. The misalignment cylinder 32 is used to move the receiving component 31 to the riveting module 1 so that the mushroom head nails are located directly below the riveting head 11. The product positioning fixture 4 is used to position the product. The handling module 5 is used to adsorb the product on the product positioning fixture 4 and transfer the product to the riveting module 1 so that the riveting holes on the product correspond to the mushroom head nails. The blanking module 6 is used to move the products after the riveting process to the next process. The automatic riveting mushroom head nail device is configured to automatically arrange the nails through the cooperation of the misalignment module 3 and the handling module 5, and automatically rivet through the riveting module 1.

[0048] According to the solution of the embodiment of the present invention, by automatically arranging the nails through the cooperation of the misalignment module 3 and the handling module 5 and automatically riveting through the riveting module 1, the production efficiency is improved and the labor cost is reduced; by limiting the maximum offset of the mushroom head nails through the receiving component 31, and only performing single-nail arranging and riveting in one process, the abnormal rate of product processing can be reduced.

[0049] The following will be described in detail with specific embodiments:

[0050] Please refer to Figure 3 and Figure 4, the misfeeding module 3 includes a support table 33 which is perpendicular to the discharging end of the vibrating discharging module 2. The receiving component 31 and the dislocation cylinder 32 are arranged on the support table 33. The receiving component 31 includes a receiving block 311, a receiving boss 312 and a plurality of limiting claws 313. The receiving block 311 is connected to the movable end of the dislocation cylinder 32. The receiving boss 312 is arranged on the receiving block 311 and corresponds to the discharging end of the vibrating discharging module 2. The plurality of limiting claws 313 surround the receiving boss 312 and are arranged away from the discharging end of the vibrating discharging module 2 so that the receiving boss 312 can smoothly receive the mushroom head nails. A plurality of telescopic grooves 3111 are formed in the receiving block 311, and the plurality of telescopic grooves 3111 correspond to the plurality of limiting claws 313 one by one. A single limiting claw 313 is arranged in the corresponding telescopic groove 3111 through a telescopic spring and its end extends out of the telescopic groove 3111. In this embodiment, the plurality of limiting claws 313 include a main limiting claw 3131 and two auxiliary limiting claws 3132. The main limiting claw 3131 and the discharging end of the vibrating discharging module 2 are symmetrically distributed with respect to the receiving boss 312. The two auxiliary limiting claws 3132 are respectively arranged on both sides of the receiving boss 312.

[0051] One side of the main limiting claw 3131 facing the mushroom head nail is a fitting surface, and the part of the fitting surface in contact with the mushroom head nail is fitted to limit and correct the deviation of the mushroom head nail. One side of the auxiliary limiting claw 3132 facing the mushroom head nail is a straight structure in the horizontal direction, and the shape in the vertical direction matches the shape of the mushroom head nail.

[0052] The misfeeding module 3 further includes a limiting plate 34 which is arranged on the support table 33, perpendicular to the side surface of the discharging end of the vibrating discharging module 2, and the end surface of the limiting plate 34 facing the receiving component 31 is flush with the end surface of the discharging end of the vibrating discharging module 2, and is used to cooperate with the plurality of limiting claws 313 to limit the maximum offset of the mushroom head nail. Specifically, in this embodiment, the unilateral position of the mushroom head nail relative to the riveting hole on the product does not exceed 0.1 mm. By limiting the maximum offset of the mushroom head nail, the accuracy of the mushroom head nail during riveting can be improved, and the phenomenon of poor riveting or one side not being riveted in place can be avoided as much as possible, and the product processing transfer rate can be reduced. When the position offset of the mushroom head nail is within 0.1 mm, the product assembly yield is the highest. When the position offset of the mushroom head nail exceeds 0.1 mm, the product assembly yield will decrease.

[0053] When the mushroom head nail is conveyed from the discharge end of the vibrating discharge module 2 to the receiving boss 312 of the receiving component 31, while the auxiliary limit claw 3132 limits and corrects the deviation of the mushroom head nail, it can make the mushroom head nail easier to enter the receiving boss 312. At the same time, the fitting surface of the main limit claw 3131 can limit and correct the deviation of the mushroom head nail. When the mushroom head nail is exactly at the preset position of the receiving boss 312, the distance between the sides of the main limit claw 3131 and the auxiliary limit claw 3132 facing the mushroom head nail and the discharge end of the vibrating discharge module 2 from the mushroom head nail is exactly 0.1 mm. During the process of the misalignment cylinder 32 pushing the receiving block 311 and the mushroom head nail thereon towards the riveting module 1, the limit plate 34 can cooperate with the main limit claw 3131 and the two auxiliary limit claws 3132 to limit the mushroom head nail to limit the maximum offset amount of the mushroom head nail during subsequent riveting.

[0054] Please refer to Figure 3 and Figure 5 Moreover, the misfeeding module 3 further includes a check component 35 arranged on the support table 33. The check component 35 includes a fixed table 351, a fixed plate 352, a check block 353, a movable rod 354, a limit plate 355, a check spring (not shown in the figure), and a guide plate 356. The fixed table 351 is arranged on the side of the discharge end of the vibrating discharge module 2 away from the riveting module 1 and on the support table 33. A fixed plate 352 is arranged on the fixed table 351, and the fixed plate 352 is parallel to the side surface of the discharge end of the vibrating discharge module 2. The check block 353 is arranged on the fixed plate 352 through the movable rod 354. One end of the movable rod 354 is connected to the check block 353, and the other end of the movable rod 354 extends outwards through the fixed plate 352. A limit plate 355 is arranged at the other end of the movable rod 354. The check spring is sleeved on the movable rod 354, and the check spring is arranged between the check block 353 and the fixed plate 352. The guide plate 356 is arranged on the fixed table 351 and is perpendicular to the fixed plate 352, and is used to guide the check block 353. The check block 353 is arranged to be movable back and forth in a direction perpendicular to the axis of the discharge end of the vibrating discharge module 2, and is used to block the discharge end of the vibrating discharge module 2 when the misalignment cylinder 32 moves the receiving component 31 to the riveting module 1.

[0055] When the mushroom head nails are conveyed from the discharge end of the vibrating discharging module 2 to the receiving boss 312 of the receiving component 31, one of the auxiliary limiting claws 3132 will abut against the check block 353, and at this time the check spring is in a compressed state. When the misalignment cylinder 32 pushes the receiving block 311 and the mushroom head nails thereon towards the riveting module 1, the auxiliary limiting claw 3132 will gradually move away from the check block 353, and at this time the check spring returns to its original position and pushes the check block 353 forward to block the discharge end of the vibrating discharging module 2 to prevent subsequent mushroom head nails from being conveyed out. After the previous mushroom head nail reaches directly below the riveting head 11 through the misalignment cylinder 32, the misalignment cylinder 32 drives the receiving component 31 to return to its original position. At this time, the check spring is compressed again to expose the discharge end of the vibrating discharging module 2, so that the next mushroom head nail is conveyed to the receiving boss 312 for misfeeding cycle.

[0056] Please refer to Figure 1 and Figure 2 , there are two product positioning jigs 4, which are respectively located on both sides of the riveting module 1. After the mushroom head nails reach directly below the riveting head 11, the handling module 5 adsorbs the product from one of the product positioning jigs 4 and transfers the product to the riveting module 1 so that the riveting holes on the product correspond to the mushroom head nails. At this time, due to the downward pressure of the product, the telescopic springs under the main limiting claw 3131 and the auxiliary limiting claw 3132 are compressed, driving the main limiting claw 3131 and the auxiliary limiting claw 3132 to move downward to avoid the product. Then the riveting head 11 rivets the mushroom head nails. Specifically, in this embodiment, the riveting depth of the mushroom head nails is 0.15 mm. After the product riveting process is completed, the handling module 5 transfers the product to another product positioning jig 4. Then, through the blanking module 6, the riveted product is moved from another product positioning jig 4 to the next process such as CCD inspection or quality inspection.

[0057] Please refer to Figure 6 , the embodiment of the present invention also provides a control method for an automatic mushroom head nail riveting device, including the following steps:

[0058] Step S10: Control the vibrating discharging module 2 to convey mushroom head nails to the receiving boss 312 of the receiving component 31;

[0059] Step S20: Control the misalignment cylinder 32 to move the receiving component 31 to the riveting module 1 so that the mushroom head nails are located directly below the riveting head 11;

[0060] Step S30: Control the handling module 5 to adsorb the product on the product positioning jig 4 and transfer the product to the riveting module 1 so that the riveting holes on the product correspond to the mushroom head nails;

[0061] Step S40: Control the riveting module 1 to rivet the product;

[0062] Step S50: Control the blanking module 6 to move the product after the riveting process to the next process.

[0063] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0064] The above-described embodiments merely represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the invention patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention patent shall be subject to the appended claims.

Claims

1. Automatic mushroom head riveting equipment, characterized in that, include: A riveting module is provided with a riveting head for riveting the product; A vibration discharging module is provided with a vibration plate for conveying and discharging mushroom head nails; The misalignment module is provided with a receiving assembly and a misalignment cylinder, wherein the receiving assembly is used to receive the mushroom head nail at the discharging end of the vibration discharging module and limit its maximum displacement in the receiving assembly and during the movement of the receiving assembly, and the misalignment cylinder is used to move the receiving assembly to the rivet module so that the mushroom head nail is located directly below the rivet head; Product positioning jig, used to position the product; A handling module, used for absorbing the product on the product positioning jig and transferring the product to the riveting module so that the riveting hole on the product corresponds to the mushroom head nail; The unloading module is used to move the products that have been riveted to the next process; The automatic mushroom head riveting nail equipment is configured to automatically swing nails through the material error module in cooperation with the transport module, and automatically rivet through the pressure riveting module.

2. The automatic riveting mushroom head nail device according to claim 1, characterized in that, The single-side position of the mushroom head nail relative to the rivet hole on the product does not exceed 0.1 mm.

3. The automatic mushroom head riveting device according to claim 1, characterized in that The receiving component comprises: A receiving block connected to the movable end of the offset cylinder; A receiving boss is arranged on the receiving block, and the receiving boss corresponds to the discharging end of the vibration discharging module; A plurality of limit claws are arranged around the receiving boss and away from the discharge end of the vibration discharge module so that the receiving boss can smoothly receive the mushroom head nail; The receiving block is provided with a plurality of telescopic slots, and the plurality of telescopic slots correspond to the plurality of limit claws one by one. A single limit claw is arranged in the corresponding telescopic slot through a telescopic spring, and an end portion thereof extends out of the telescopic slot.

4. The automatic mushroom head riveting device according to claim 3, characterized in that, The side of the limiting claw facing the mushroom head nail is a fitting surface, and the fitting surface fits with the contact part of the mushroom head nail to limit the position and correct the deviation of the mushroom head nail.

5. The automatic mushroom head riveting device according to claim 3, characterized in that, The material error module also includes: A limit plate is perpendicular to the side of the discharge end of the vibration discharge module and its end face facing the receiving component is flush with the end face of the discharge end of the vibration discharge module, and is used to cooperate with the multiple limit claws to limit the maximum offset of the mushroom head nail during transportation and product assembly.

6. The automatic mushroom head riveting device according to claim 1, characterized in that, The material error module also includes a non-return component, and the non-return component includes: A fixing platform is arranged on a side of the discharge end of the vibration discharge module away from the riveting module, and a fixing plate is arranged on the fixing platform, and the fixing plate is parallel to the side surface of the discharge end of the vibration discharge module; A check block is arranged on the fixed plate through a movable rod, one end of the movable rod is connected to the check block, the other end of the movable rod passes through the fixed plate and extends outward, and a limit plate is arranged on the other end of the movable rod; A non-return spring, which is sleeved on the movable rod and arranged between the non-return block and the fixed plate; The check block is configured to move back and forth along a direction perpendicular to the axis of the discharge end of the vibration discharge module, and is used to block the discharge end of the vibration discharge module when the offset cylinder moves the receiving assembly to the riveting module.

7. The automatic mushroom head riveting device according to claim 6, characterized in that, The non-return assembly further comprises: The guide plate is arranged on the fixed table and perpendicular to the fixed plate, and is used to guide the check block.

8. A control method for an automatic riveting mushroom head nail device as described in any one of claims 1 to 7, characterized in that, The following steps are included: Controlling the vibrating discharging module to convey the mushroom head nails to the receiving boss of the receiving component; Controlling the misalignment cylinder to move the receiving component to the riveting module so that the mushroom head nails are located directly below the riveting head; Controlling the handling module to adsorb the product on the product positioning fixture and transfer the product to the riveting module so that the riveting holes on the product correspond to the mushroom head nails; Controlling the riveting module to perform riveting on the product; Controlling the blanking module to move the product after the riveting process to the next process.

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