Nut riveting mechanism

Abstract

The utility model discloses a nut riveting mechanism which comprises a handle portion and a riveting portion. The riveting part is mounted on the handle part; the riveting part comprises an upper assembling piece, a lower assembling piece and a riveting clamp, and the riveting clamp is installed between the upper assembling piece and the lower assembling piece; the riveting clamp comprises a left clamp head and a right clamp head, each of the left clamp head and the right clamp head is provided with a fixed arm plate and a riveting tool bit vertically connected with the fixed arm plate, and a riveting column is arranged on the inner side of each riveting tool bit; the handle part comprises an operating handle, and the top end of the operating handle is connected with the riveting clamp of the riveting part. According to the nut riveting mechanism, the riveting column of the riveting clamp is arranged to extrude and deform the stud of the nut, the nut can be effectively prevented from loosening due to axial force or vibration, and the reliability and stability of connection are improved. Moreover, by adopting the combined design of the handle part and the riveting part, the structure is compact, and the operation is simple.

Description

TECHNICAL FIELD

[0001] The utility model relates to a nut riveting mechanism and belongs to the technical field of mechanical engineering. BACKGROUND

[0002] With the development of industrial manufacturing and assembly process, the fixing method and firmness of fasteners (such as nuts) are constantly improved. Nut loosening or deformation may lead to equipment failure, reduced work efficiency, and even safety hazards. Therefore, in many industries, how to effectively prevent nut loosening has become an important issue.

[0003] The current traditional nut fastening installation method, such as manual tightening or simple mechanical fixing, often cannot meet the assembly requirements of high precision and high strength, especially in the automobile manufacturing, aerospace, electronic equipment and home appliance manufacturing industries. These fields have strict requirements on the connection strength, vibration resistance and long-term stability of parts, so more efficient and reliable riveting technology is needed to provide sufficient anti-loosening performance for ordinary nuts and bolts in some harsh environments. In order to solve this problem, nut riveting technology is used, and the nut riveting mechanism deforms the nut by extrusion to firmly combine it with the workpiece surface, preventing the nut from loosening or deforming during use. However, the current nut riveting mechanism has some problems, such as the traditional mechanism usually needs special matching equipment or site, which may lead to high initial investment and equipment maintenance cost. Moreover, the traditional nut riveting mechanism is more suitable for relatively flat and space-limited workpieces, and the riveting method may not be applicable to complex workpieces and narrow environments, which cannot achieve wide applicability. In addition, the traditional nut riveting mechanism is generally bulky and cannot be moved, and it cannot effectively handle some non-standard nuts, which has poor flexibility.

[0004] Therefore, it is necessary to design a new type of nut riveting mechanism that can be conveniently carried and operated manually, improving the convenience and assembly efficiency of manual operation, and can be used in some complex and limited environments, meeting the requirements of convenience and flexibility of the riveting mechanism. Utility model content

[0005] Therefore, the utility model aims to provide a nut riveting mechanism that can be applied to complex environments and workpieces and is convenient to carry.

[0006] In order to achieve the above object, the utility model discloses a nut riveting mechanism, including handle part and riveting part, the riveting part is installed on handle part, the riveting part includes upper fit piece, lower fit piece and riveting tong, the riveting tong is installed between upper fit piece and lower fit piece, the riveting tong includes left jaw and right jaw, the left jaw and right jaw are all provided with fixed arm plate and riveting cutter head with fixed arm plate vertical interface, the inside of riveting cutter head is provided with riveting column, the handle part includes operating handle, and the top of operating handle is connected with the riveting tong of riveting part.

[0007] The inner surface of the upper fit piece is provided with a plurality of positioning columns, and the upper fit piece and the lower fit piece are connected and fixed by the positioning columns.

[0008] The left jaw and the right jaw of the riveting tong are provided with mounting holes, and the positioning columns pass through the mounting holes to install the riveting tong on the upper fit piece.

[0009] The operating handle is two, and the two operating handles are symmetrically placed.

[0010] The operating handle includes an operating rod, and the operating rod is provided with a connecting rod extending outward at the top end, and the connecting rod is connected with the riveting tong of the riveting part.

[0011] The upper fit piece and / or the lower fit piece are provided with a clearance slot, and the inner side of the connecting rod of the two symmetrically placed operating handles is provided with a mounting ear with a through hole, and a pin shaft passes through the through holes of the clearance slot and the two mounting ears in sequence to connect the two operating handles.

[0012] The operating rod of the operating handle is provided with an anti-skid structure at the end.

[0013] The fixed arm plate and the riveting cutter head are connected and fixed by welding, or the fixed arm plate and the riveting cutter head are integrally formed.

[0014] The left jaw and the right jaw are mirror image structures.

[0015] A limiting square is further arranged for limiting the opening and closing range of the riveting tong, and the limiting square is installed on the outer surface of the lower fit piece.

[0016] The utility model discloses a nut riveting mechanism, the riveting column of riveting clamp is set up to the stud of nut extrusion deformation, can effectively prevent the nut from loosening because of axial force or vibration, improves the reliability and stability of connection. And, adopt the combination design of handle part and riveting part, compact structure, simple operation. User only needs to complete riveting operation through handle force, need not complex tool or additional power source. Meanwhile, the left jaw and right jaw of riveting clamp adopt mirror image symmetry structure, and the operating handle is two symmetrical placements, can ensure that the stress is even in the riveting process, avoids the deformation or damage of one -sided stress. Besides, set up the limiting square frame, can limit the opening and closing range of riveting clamp, prevents the damage of excessive opening and closing to the component, improves the service life and security of equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic diagram of the utility model.

[0018] Figure 2 It is the structure schematic diagram of another angle of the utility model.

[0019] Figure 3 It is the structure exploded view of the utility model.

[0020] Figure 4 It is the structure assembly drawing of the utility model. DETAILED DESCRIPTION

[0021] The utility model is further explained in detail through the drawings and specific embodiment.

[0022] As Figures 1-4The utility model discloses a nut riveting mechanism, including handle part 1 and riveting part 2, the riveting part 2 is installed on handle part 1, the riveting part 2 includes upper fitment 3, lower fitment 4 and riveting tong 5, and the riveting tong 5 is installed between upper fitment 3 and lower fitment 4, the riveting tong 5 includes left tong head 51 and right tong head 52, and the left tong head 51 and right tong head 52 are mirror image structure, the left tong head 51 includes fixed arm plate 511 and riveting cutter head 512 with fixed arm plate 511 vertical interface, the riveting cutter head 512 inside is provided with riveting column 53, the handle part 1 includes operating handle 6, the operating handle 6 includes operating lever 61, and the operating lever 61 top is provided with the connecting rod 62 of the extension to the outside, and the connecting rod 62 is connected with the riveting tong 5 of riveting part 2. Through setting operating handle 6 and the linkage structure of riveting tong 5, utilize operating lever 61 and the design of the connecting rod 62 of the extension to the outside, realize greater lever effect. Operator only needs smaller power to complete riveting operation, and the working efficiency and operation convenience are improved significantly. Moreover, the left tong head 51 and right tong head 52 of riveting tong 5 are mirror image structure, and through the design of accurate symmetry, can ensure that riveting force is evenly distributed on the nut, thereby guaranteeing the stability of riveting effect, prevent the nut from being fixed not firm or deforming due to mechanical imbalance. In addition, the riveting column 53 in riveting tong 5 extrudes the stud of the nut and deforms, ensures the firm connection between the nut and workpiece, thereby effectively prevents the nut from loosening due to axial force or vibration in the use process, enhances the safety and reliability of product.

[0023] The inner surface of the upper fitment 3 is provided with a plurality of positioning columns 31 for ensuring the accurate docking and installation of each component, avoiding deviation or misalignment that may occur during assembly, and also helping to improve the assembly accuracy of the entire riveting mechanism, ensuring that the riveting tong 5 can stably and uniformly apply pressure when working, and avoiding unstable operation due to component misalignment. In addition, the plurality of positioning columns 31 can disperse and uniformly transmit external force, ensuring that the riveting part 2 is not prone to loosening or deformation during use, improving the structural stability of the entire device.

[0024] The upper fitment 3 and the lower fitment 4 are connected and fixed by the positioning columns 31 for effectively ensuring the stability between the two, avoiding loosening of the two parts due to vibration, external force or long-term use during use, thereby ensuring the reliability and consistency of the device when working.

[0025] The left jaw 51 and the right jaw 52 of the riveting clamp 5 are provided with mounting holes 54, and the positioning column 31 passes through the mounting holes 54 to install the riveting clamp 5 on the upper fitting part 3. By providing the mounting holes 54 on the left jaw 51 and the right jaw 52 of the riveting clamp 5 and using the positioning column 31 to fix them on the upper fitting part 3, the installation process of the riveting clamp 5 can be greatly simplified. The cooperation of the positioning column 31 and the mounting hole 54 enables the riveting clamp 5 to be quickly and accurately installed and disassembled, reduces the time for manual adjustment and positioning, and improves the assembly efficiency.

[0026] The operation handle 6 is two, and the two operation handles 6 are symmetrically placed to achieve uniform distribution of operating force, facilitating the use of the operator.

[0027] The upper fitting part 3 and / or the lower fitting part 4 are provided with a let-in slot 32, and preferably, the upper fitting part 3 and the lower fitting part 4 in the embodiment are both provided with the let-in slot 32. The inner side of the connecting rod 62 of the two symmetrically placed operation handles 6 is provided with a mounting ear 63 with a through hole, and a pin shaft 65 passes through the through holes of the two mounting ears 63 in sequence to connect the two operation handles 6, which is used to effectively ensure the firm connection between the handles. The pin shaft 65 can move in the let-in slot 32 along with the handle part 1, and the design of the pin shaft 65 can provide stable fixing force and avoid the loosening or falling off of the handle connecting part, thereby ensuring the safety and stability during operation.

[0028] The end of the operation handle 6 is provided with an anti-slip structure 64 to prevent the hands of the operator from slipping during use and to provide better gripping force.

[0029] The fixed arm plate 511 and the riveting cutter head 512 are connected and fixed by welding, or the fixed arm plate 511 and the riveting cutter head 512 are integrally formed. Welding connection or integral forming can eliminate the joints or gaps that may occur between the parts, thereby reducing the uneven or unstable riveting caused by part loosening or assembly errors, and at the same time, it can ensure that the riveting cutter head 512 always maintains the correct pose during work, improving the uniformity and precision of the riveting effect.

[0030] The riveting cutter head 512 is a crescent-shaped cylinder, which is used to provide a larger contact surface, so that the riveting cutter head 512 can be more stably aligned and clamped, and this structure can improve the stability during riveting, reducing the riveting error caused by unstable contact surface or position change.

[0031] A limiting square 7 for limiting the opening and closing range of the riveting clamp 5 is also provided, which is installed on the outer surface of the lower fitting part 4 to limit the opening and closing range of the riveting clamp 5, avoiding excessive opening or closing of the jaw, thereby preventing damage to the parts or improper operation caused by excessive opening and closing.

[0032] In use, first, the device is in normal working state, check whether the parts are fastened, such as rivet pressure pincers 5, handle, fitting and so on are connected stably. Check the wear condition of rivet pressure cutter head 512, rivet pressure column 53 and limiting square frame 7 and so on, ensure that there is no damage or abnormality. Then, the pincers head of rivet pressure pincers 5 is aligned and placed in the nut, ensure that the left pincers head 51 and right pincers head 52 symmetrically surround the nut, and the nut is correctly placed. Then, hold the operation handle 6, ensure that the palm firmly holds the handle end, avoid the hands from slipping off during operation. Both hands apply force uniformly, push the operation handle 6 inward, start riveting the nut. Rivet pressure cutter head 512 will extrude the stud of the nut through rivet pressure column 53, prevent the nut from loosening. Finally, once the nut is successfully riveted, stop applying force, release the operation handle 6, check the riveting effect, ensure that the nut has been firmly fixed and there is no loosening, complete the operation.

[0033] With the above technical scheme, the nut riveting mechanism of the utility model, through the setting rivet pressure column 53 of rivet pressure pincers 5 extrudes the stud of the nut and deforms, can effectively prevent the nut from loosening due to axial force or vibration, improve the reliability and stability of connection. And, adopt the combination design of handle part 1 and riveting part 2, compact structure, simple operation. Users only need to complete the riveting operation by applying force through the handle, without complex tools or additional power source. At the same time, the left pincers head 51 and right pincers head 52 of rivet pressure pincers 5 adopt mirror image symmetry structure, and the operation handle 6 is placed symmetrically, can ensure that the force is uniform during riveting, avoid deformation or damage caused by unilateral force. In addition, the limiting square frame 7 is set, can limit the opening and closing range of rivet pressure pincers 5, prevent excessive opening and closing from causing damage to the parts, improve the service life and safety of the equipment.

[0034] Obviously, the above embodiments are only examples for clearly illustrating, not limiting the embodiments. For ordinary skilled in the art, other different forms of changes or variations can be made on the basis of the above description. Here, all the embodiments need not and cannot be exhausted. The obvious changes or variations derived therefrom are still within the protection scope of the utility model.

Claims

1. A nut riveting mechanism, characterized in that: The device includes a handle and a riveting part; the riveting part is mounted on the handle; the riveting part includes an upper fitting, a lower fitting, and riveting pliers, the riveting pliers being mounted between the upper and lower fittings; the riveting pliers include a left plier head and a right plier head, each of which is provided with a fixed arm plate and a riveting cutter head perpendicularly connected to the fixed arm plate, and a riveting pin is provided on the inner side of the riveting cutter head; the handle includes an operating handle, the top of which is connected to the riveting pliers of the riveting part.

2. The nut riveting mechanism as described in claim 1, characterized in that: The upper assembly has a plurality of positioning posts on its inner surface; the upper assembly and the lower assembly are connected and fixed by the positioning posts.

3. The nut riveting mechanism as described in claim 2, characterized in that: The left and right jaws of the riveting pliers are both provided with mounting holes, and the positioning pin passes through the mounting holes to install the riveting pliers onto the upper fitting.

4. The nut riveting mechanism as described in claim 1, characterized in that: There are two operating handles, which are placed symmetrically.

5. The nut riveting mechanism as described in claim 4, characterized in that: The operating handle includes an operating lever, and the top of the operating lever is provided with a connecting rod extending outward, which is connected to the riveting clamp of the riveting part.

6. The nut riveting mechanism as described in claim 5, characterized in that: The upper and / or lower fittings are provided with clearance grooves; the inner sides of the two symmetrically placed operating handle connecting rods are each provided with mounting ears with through holes, and the pins pass through the clearance grooves and the through holes of the two mounting ears in sequence to connect the two operating handles.

7. The nut riveting mechanism as described in claim 6, characterized in that: The operating lever of the operating handle is provided with an anti-slip structure at its end.

8. The nut riveting mechanism as described in any one of claims 1-7, characterized in that: The fixed arm plate and the riveting head are fixed by welding, or the fixed arm plate and the riveting head are integrally formed.

9. The nut riveting mechanism as described in any one of claims 1-7, characterized in that: The left and right jaws are mirror images of each other.

10. The nut riveting mechanism according to any one of claims 1-7, characterized in that: A limiting frame is also provided to limit the opening and closing range of the riveting clamps, and the limiting frame is installed on the outer surface of the lower fitting.

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