CN220717514U

CN220717514U - Automatic riveting set of lid

Info

Publication number: CN220717514U
Application number: CN202322172758.0U
Authority: CN
Inventors: 冯健; 周海波
Original assignee: Zhongshan Meige Electronic Technology Co Ltd
Current assignee: Zhongshan Meige Electronic Technology Co Ltd
Priority date: 2023-08-11
Filing date: 2023-08-11
Publication date: 2024-04-05
Anticipated expiration: 2033-08-11

Abstract

The utility model discloses an automatic riveting device for a box cover, wherein a pneumatic mechanism comprises a driving cylinder which is vertically arranged, and a telescopic end of the driving cylinder is connected with a driving block; the transmission mechanism comprises a transmission block which is horizontally arranged, one end of the transmission block is in transmission connection with the driving block, and the other end of the transmission block is connected with the edge riveting die and the corner riveting die; the clamping mechanism comprises a clamping hand positioned below the die assembly and a clamping cylinder for driving the clamping hand to swing back and forth along the direction of the die assembly; the feeding mechanism comprises a feeding plate positioned below the clamping hand and a feeding cylinder for driving the feeding plate to reciprocate along the vertical direction. According to the utility model, the pneumatic mechanism and the transmission mechanism are arranged, and the side riveting cover die and the corner riveting cover die are driven to rivet in a driving mode of a plurality of power sources, so that the riveting mechanism is simple in structure and high in controllability, and the riveting stability is improved; by arranging the feeding mechanism and the clamping mechanism, the magnetron to be riveted is lifted and fed, limited and fixed, and the processing efficiency and the riveting precision are improved.

Description

Automatic riveting set of lid

Technical Field

The utility model relates to the technical field of magnetron assembly equipment, in particular to an automatic riveting device for a box cover.

Background

The magnetron is a core component of a microwave oven, and microwaves are generated by the magnetron, and the microwaves are irradiated on food, so that the food can be heated. In the magnetron assembly process, the skirt edge of the box cover is required to be riveted on the filter box shell, so that the filter box packaging purpose is realized, wherein the box cover riveting device is adopted, and the riveting tightness and the production efficiency are improved.

Application number 201510373341.8 discloses a riveting die for riveting an upper cover of a magnetron, and the riveting of the skirt of the upper cover is completed by utilizing the lever principle. The driving arm of the driving rod swings to push the edge riveting cover die and the corner riveting cover die to slide and rivet the skirt edge of the upper cover of the magnetron. However, the single power source driving mode is adopted, the side riveting cover die and the corner riveting cover die can be driven through a plurality of force arms and hinges, the structure is relatively complex, the movement stroke is difficult to adjust, the side riveting cover die and the corner riveting cover die cannot be synchronously riveted, the stress on four sides of the box cover is unbalanced, and the riveting precision is poor. In addition, in the automated production line, riveting set generally adopts the installation of hanging upside down, owing to lack corresponding fixture and feeding mechanism, the easy side that inclines and become flexible when leading to riveting, influence riveting stability and machining efficiency.

Disclosure of Invention

The utility model aims to solve the defects in the prior art and provides an automatic box cover riveting device.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides an automatic riveting set of lid, includes bottom plate, mould subassembly, pneumatic means, drive mechanism, fixture and feeding mechanism, its characterized in that:

the die assembly comprises a central die arranged towards the lower part of the bottom plate, and a side riveting die and an angle riveting die which are connected to the lower part of the bottom plate in a sliding manner along the direction of the central die, wherein the side riveting die and the angle riveting die are arranged in a central symmetry manner around the central die, and the positions of the side riveting die and the angle riveting die respectively correspond to four sides and four angles of the central die;

the pneumatic mechanism comprises a driving cylinder which is vertically arranged, and the telescopic end of the driving cylinder is connected with a driving block; the transmission mechanism comprises a transmission block which is horizontally arranged, one end of the transmission block is in transmission connection with the driving block, and the other end of the transmission block is connected with the edge riveting die and the corner riveting die;

the clamping mechanism comprises a clamping hand positioned below the die assembly and a clamping cylinder for driving the clamping hand to swing back and forth along the direction of the die assembly; the feeding mechanism comprises a feeding plate positioned below the clamping hand and a feeding cylinder for driving the feeding plate to reciprocate along the vertical direction.

Preferably, the driving block is provided with an inclined surface at one end far away from the driving cylinder, and the transmission block is rotationally connected with a roller at one end close to the driving block, and the roller is in rolling connection with the inclined surface.

Preferably, the clamping hand is of an L-shaped structure, one end of the clamping hand is connected below the edge riveting die in a swinging mode, and the other end of the clamping hand extends to form a bearing part.

Preferably, the outside of the clamping hand is rotationally connected with a connecting block, and the telescopic end of the clamping cylinder is connected with the clamping hand through the connecting block.

Preferably, the feeding mechanism comprises a clamping plate which is in sliding connection with the feeding plate, and a clamping cylinder which drives the clamping plate to reciprocate along the horizontal direction.

Preferably, the bottom plate is vertically provided with a stripping cylinder, the center die is provided with a downward through hole in the center, a stripping block is connected in a sliding manner in the through hole, and the telescopic end of the stripping cylinder penetrates through the bottom plate and is connected with the stripping block.

Preferably, elastic reset mechanisms are connected between the edge riveting die and the central die and between the corner riveting die and the central die, and the expansion direction of the elastic reset mechanisms is the same as the sliding direction of the edge riveting die and the corner riveting die.

Preferably, the outside of the central die is provided with a skirt profile, the cross section of the skirt profile is of a wavy structure, and the edge riveting die is provided with an edge riveting profile corresponding to the skirt profile.

The utility model has the following beneficial effects:

according to the utility model, the pneumatic mechanism and the transmission mechanism are arranged, the independent cylinder is adopted for driving, a plurality of power sources are used for driving, and the wedge slide block transmission principle is utilized for driving the edge riveting cover die and the corner riveting cover die to rivet, so that the structure is simple, the controllability is high, the movement stroke is convenient to adjust, the stress balance of four sides of the box cover is ensured, and the riveting stability is improved; by arranging the feeding mechanism and the clamping mechanism, the magnetron to be riveted is lifted and fed, limited and fixed, and the conditions of side deflection, looseness and the like are not easy to occur during riveting, so that the processing efficiency and the riveting precision are effectively improved.

Drawings

FIG. 1 is a schematic diagram of an assembly structure of an automated riveting apparatus for a box cover according to the present utility model

FIG. 2 is a schematic diagram showing an assembly structure of the mold assembly and the clamping mechanism according to the present utility model

FIG. 3 is a schematic diagram showing the assembly structure of the pneumatic mechanism and the transmission mechanism according to the present utility model

FIG. 4 is a schematic view of a clamping mechanism according to the present utility model

FIG. 5 is a schematic view of a feeding mechanism according to the present utility model

FIG. 6 is a schematic view showing the assembly structure of the center mold and the stripper block according to the present utility model

FIG. 7 is a schematic diagram showing the assembly structure of the filter box and the filter box according to the present utility model

Description of the drawings: the die comprises a bottom plate 1, a center die 2, a side riveting die 3, an angle riveting die 4, a driving cylinder 5, a driving block 6, a transmission block 7, a clamping hand 8, a clamping cylinder 9, a feeding plate 10, a feeding cylinder 11, a roller 12, a bearing part 13, a connecting block 14, a clamping plate 15, a clamping cylinder 16, a stripping cylinder 17, a stripping block 18, a skirt profile 19, a side riveting profile 20, a box cover 21 and a filter box shell 22.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1 to 7, one embodiment provided by the present utility model is:

an automatic riveting device for a box cover comprises a bottom plate 1, a die assembly, a pneumatic mechanism, a transmission mechanism, a clamping mechanism and a feeding mechanism:

the die assembly comprises a central die 2 arranged towards the lower part of the bottom plate 1, and a side riveting die 3 and an angle riveting die 4 which are connected to the lower part of the bottom plate 1 in a sliding manner along the direction of the central die 2, wherein the side riveting die 3 and the angle riveting die 4 are arranged in a central symmetry manner around the central die 2, and the positions of the side riveting die 3 and the angle riveting die 4 correspond to four sides and four angles of the central die 2 respectively;

the pneumatic mechanism comprises a driving cylinder 5 which is vertically arranged, and the telescopic end of the driving cylinder 5 is connected with a driving block 6; the transmission mechanism comprises a transmission block 7 which is horizontally arranged, one end of the transmission block 7 is in transmission connection with the driving block 6, and the other end of the transmission block 7 is connected with the edge riveting die 3 and the corner riveting die 4;

the clamping mechanism comprises a clamping hand 8 positioned below the die assembly and a clamping cylinder 9 for driving the clamping hand 8 to swing back and forth along the direction of the die assembly; the feeding mechanism comprises a feeding plate 10 positioned below the clamping hand 8 and a feeding cylinder 11 for driving the feeding plate 10 to reciprocate along the vertical direction.

In the prior art, the magnetron comprises a filter box shell 22 and a box cover 21, wherein the box cover 21 is arranged above the filter box shell 22 to seal the filter box shell 22, the outer side of the box cover 21 is extended to form a box cover skirt edge, the positions of the box cover skirt edge are respectively positioned at four edges and four corners of the box cover 21, and the box cover skirt edge is provided with a bending structure with a certain angle and can be folded under an extrusion state. During magnetron assembly, the cover skirt is riveted on the outside of the filter box housing 22, thereby achieving the filter box packaging purpose. In addition, in the actual production scene, for cooperation automation line setting, riveting set generally adopts the installation of hanging upside down, can understand that center mould 2, limit are riveted mould 3, angle and are riveted mould 4 and all locate bottom plate 1 below, and lid 21 and filter box casing 22 are the upper and lower structure installation, and the mould subassembly is located lid 21 top. For convenience of description, after the box cover 21 is installed above the filter box housing 22, both are referred to as magnetrons to be riveted.

Through setting up lid automation riveting set, with lid shirt rim riveting tightly in the filter box casing 22 outside to realize filter box encapsulation purpose, provide functions such as spacing fixed, lifting pay-off simultaneously, with this realization automated production effect, wholly include bottom plate 1, mould subassembly, pneumatic mechanism, drive mechanism, fixture and feeding mechanism.

The die assembly serves as a rivet work member for riveting the cap 21 and the filter case housing 22 by pressing the cap skirt. The die assembly comprises a center die 2, an edge riveting die 3 and an angle riveting die 4, which correspond to the top position of the box cover 21, the four edge positions of the box cover 21 and the four angle positions of the box cover 21 respectively. The central mould 2 fixed mounting is in bottom plate 1, sets up towards bottom plate 1 below, and the central mould 2 outside is equipped with the riveting region, and the lower terminal surface of central mould 2 can be equipped with the location concave part, and the location concave part is used for spacing fixedly to lid 21, and the inner structure of location concave part matches with the top profile of lid 21, improves riveting stability. The edge riveting die 3 and the corner riveting die 4 are connected below the bottom plate 1 in a sliding manner along the direction of the central die 2, and the edge riveting die 3 and the corner riveting die 4 are arranged around the outer side of the central die 2. The edge riveting die 3 and the corner riveting die 4 can be provided with four groups, and the positions of the four groups respectively correspond to the four edges and the four corners of the central die 2. The side riveting die 3 is matched with the central die 2 to rivet the skirt edge of the box cover 21. The corner riveting die 4 is matched with the central die 2 to rivet the box cover skirt edges at the corners of the box cover 21. The edge riveting dies 3 and the corner riveting dies 4 are distributed in a central symmetry mode around the central die 2, the distances from each edge riveting die 3 to the central die 2 are equal, the distances from each corner riveting die 4 to the central die 2 are equal, the four sides of the box cover 21 are balanced in stress in the riveting process, and the riveting stability is improved.

The pneumatic mechanism provides driving force, adopts a cylinder driving mode, provides independent power sources for each group of edge riveting die 3 and angle riveting die 4, and is more beneficial to controlling driving force and movement stroke compared with a single power source. The pneumatic mechanism comprises a driving air cylinder 5 and a driving block 6, the driving air cylinder 5 is arranged on the bottom plate 1 along the vertical direction, the telescopic end of the driving air cylinder 5 is arranged towards the lower side of the bottom plate 1, the telescopic end of the driving air cylinder 5 is connected with the driving block 6, and the driving block 6 reciprocates along the vertical direction under the driving of the driving air cylinder 5.

The transmission mechanism controls the transmission direction, and the transmission direction of the driving force is changed through the transmission relation between the pneumatic mechanism and the transmission mechanism, so that the vertical movement of the pneumatic mechanism is converted into the horizontal movement of the edge riveting die 3 and the corner riveting die 4. The transmission mechanism comprises a transmission block 7, the transmission block 7 is horizontally and slidably connected below the bottom plate 1, and the sliding direction of the transmission block is the same as the moving direction of the edge riveting die 3 and the corner riveting die 4. One end of the transmission block 7 is in transmission connection with the driving block 6, the other end of the transmission block 7 is connected with the edge riveting die 3 and the corner riveting die 4, the driving block 6 and the transmission block 7 are respectively provided with complementary inclined planes, the two inclined planes are mutually matched to slide to form a wedge sliding block mechanism in mechanical principle, and the change of the transmission direction is realized along with the sliding fit of the inclined planes, so that the edge riveting die 3 and the corner riveting die 4 are driven to move towards the central die 2.

The clamping mechanism clamps the magnetron to be riveted, so that limiting and fixing are realized, riveting is performed in a clamping state, side deflection and loosening are prevented, and riveting stability is improved. The clamping mechanism comprises a clamping hand 8 and a clamping cylinder 9, wherein the clamping hand 8 is positioned below the die assembly and can be rotationally connected to the bottom plate 1 along the vertical direction, so that the magnetron to be riveted below the die assembly is conveniently clamped. The telescopic end of the clamping cylinder 9 is connected with the clamping hand 8, the clamping hand 8 is driven by the clamping cylinder 9 to reciprocate along the direction of the die assembly, and the magnetron to be riveted in the movement track is held in the swinging process, so that the clamping function is realized.

The feeding mechanism conveys the magnetron to be riveted so as to realize lifting feeding, and the magnetron to be riveted on the workbench or the conveyor belt is lifted to a proper clamping height, and then is clamped by the clamping hand 8, so that the production efficiency is improved. The feeding mechanism comprises a feeding plate 10 and a feeding cylinder 11, wherein the feeding plate 10 is horizontally arranged and positioned below the clamping hand 8, so that the magnetron to be riveted can be lifted conveniently. To avoid interference collision between the feeding plate 10 and the clamping hand 8, it may be that the clamping hand 8 corresponds to the left and right sides of the center die 2, and the feeding plate 10 corresponds to the front and rear sides of the center die 2. The feeding cylinder 11 is installed at the bottom plate 1 along the vertical direction, and the flexible end of feeding cylinder 11 sets up towards bottom plate 1 below, and the flexible end of feeding cylinder 11 is connected with the delivery board 10, and the delivery board 10 reciprocates along the vertical direction under the drive of feeding cylinder 11, realizes the pay-off function.

The working process comprises the following steps:

firstly, the feeding cylinder 11 drives the feeding plate 10, the feeding plate 10 moves upwards, and the magnetron to be riveted is lifted upwards to a proper clamping height, so that the purpose of lifting and feeding is achieved. The clamping cylinder 9 drives the clamping hand 8, the clamping hand 8 swings towards the direction of the die assembly to clamp the lifted magnetron to be riveted, during the clamping process, the clamping hand 8 clamps two sides of the magnetron to be riveted to realize horizontal limiting, and then supports the lower end of the magnetron to be riveted to enable the box cover 21 to be fixed in the central die 2 to realize vertical limiting.

Then, the driving cylinder 5 drives the driving block 6, the driving block 6 moves downwards, the driving block 6 is matched with the transmission block 7, the transmission block 7 moves horizontally, the edge riveting die 3 and the corner riveting die 4 are driven to move along the direction of the central die 2, the edge riveting die 3 and the corner riveting die 4 squeeze the skirt edge of the box cover, the box cover 21 is riveted on the filter box shell 22, and the box cover 21 riveting process is completed.

According to the utility model, the pneumatic mechanism and the transmission mechanism are arranged, the independent cylinder is adopted for driving, a plurality of power sources are used for driving, and the wedge slide block transmission principle is utilized for driving the edge riveting cover die and the corner riveting cover die to rivet, so that the structure is simple, the controllability is high, the movement stroke is convenient to adjust, the stress balance of four sides of the box cover 21 is ensured, and the riveting stability is improved; by arranging the feeding mechanism and the clamping mechanism, the magnetron to be riveted is lifted and fed, limited and fixed, and the conditions of side deflection, looseness and the like are not easy to occur during riveting, so that the processing efficiency and the riveting precision are effectively improved.

In this embodiment, preferably, the driving block 6 is provided with an inclined surface at an end far from the driving cylinder 5, and the transmission block 7 is rotatably connected with a roller 12 at an end near to the driving block 6, and the roller 12 is in rolling connection with the inclined surface.

By arranging the inclined surface and the roller 12, the inclined surface and the roller are arranged at the transmission connection position of the driving block 6 and the transmission block 7, the inclined surface is arranged at the end part of the driving block 6, and the corresponding driving block 6 faces one side of the transmission block 7. The roller 12 is rotatably connected to the end of the transmission block 7, and the roller 12 is in rolling connection with the inclined surface. Under the drive of the driving cylinder 5, the driving block 6 moves downwards, the inclined surface is in contact with the roller 12, the driving block 6 continues to move downwards, the roller 12 rolls on the inclined surface, the driving transmission block 7 moves in the horizontal direction, the edge riveting die 3 and the corner riveting die 4 are driven to move in the direction along the central die 2, the change of the transmission direction is realized, and compared with the conventional connecting rod structure transmission mode, the structure is simple, the installation is convenient, the requirement on the precision of parts is low, and the movement stroke is easy to adjust.

In this embodiment, preferably, the clamping hand 8 has an L-shaped structure, one end of the clamping hand 8 is connected to the lower portion of the edge riveting die 3 in a swinging manner, and the other end of the clamping hand 8 extends to form a supporting portion 13.

Through setting up tong 8 for L shape structure, can be two sets of that are the symmetry setting about center mould 2, ensure in the rotation in-process, can play the cohesion effect. One end of the clamping hand 8 is connected below the side riveting die 3 in a swinging way, can be connected to the bottom plate 1 in a rotating way, and is correspondingly arranged on the left side and the right side of the central die 2, so that the clamping of the side positions on the left side and the right side of the magnetron to be riveted is facilitated. The other end of the clamping hand 8 is extended with a bearing part 13, the bearing part 13 is used as a clamping working area, and can extend towards the inner side of the clamping hand 8, so that the clamping hand 8 can conveniently hook the magnetron to be riveted by utilizing the bearing part 13 in the swinging process. The end of the bearing part 13 is provided with a horizontal plane, when the magnetron to be riveted is clamped, the horizontal plane at the end of the bearing part 13 is tightly contacted with the lower end face of the magnetron to be riveted, so that the clamping stability is improved.

In this embodiment, preferably, a connection block 14 is rotatably connected to the outer side of the grip 8, and the telescopic end of the clamping cylinder 9 is connected to the grip 8 through the connection block 14.

Through setting up connecting block 14, connecting block 14 is located between tong 8 and the centre gripping cylinder 9, and connecting block 14 rotates with tong 8 outside to be connected, and connecting block 14 and the expansion end fixed connection of centre gripping cylinder 9, centre gripping cylinder 9 drive tong 8 through connecting block 14 and reciprocate the swing. The clamping cylinder 9 provides driving force for the clamping hand 8, if the telescopic end of the clamping cylinder 9 is fixedly connected to the clamping hand 8, the driving force direction is constant, and after the clamping hand 8 swings to a certain position, the clamping hand 8 is difficult to continue swinging due to the problem of transmission angle. The connecting block 14 is additionally arranged to be rotationally connected with the clamping hand 8, a hinging relation is additionally arranged between the clamping hand 8 and the clamping cylinder 9, a connecting rod transmission mechanism in a mechanical principle is formed, and the driving force direction can be changed, so that the problem is solved.

In this embodiment, the feeding mechanism preferably includes a clamping plate 15 slidably connected to the feeding plate 10, and a clamping cylinder 16 for driving the clamping plate 15 to reciprocate in the horizontal direction.

Through setting up clamping plate 15 and clamping cylinder 16, clamping plate 15 is the level setting, can be in the centre form 2 side of orientation be equipped with clamping portion, be convenient for with waiting to rivet the magnetron joint. The clamping plate 15 is in sliding connection with the feeding plate 10, the telescopic end of the clamping air cylinder 16 is connected with the clamping plate 15, the clamping plate 15 is driven by the clamping air cylinder 16 to reciprocate along the horizontal direction, and can reciprocate along the front and back directions, and the clamping plate is correspondingly arranged on the front and back sides of the central die 2, so that the clamping connection of the side positions of the front and back sides of the magnetron to be riveted is facilitated. The clamping air cylinder 16 drives the clamping plate 15, the clamping plate 15 moves towards the magnetron to be riveted and is clamped, and the feeding air cylinder 11 drives the feeding plate 10, the feeding plate 10 moves upwards, and the magnetron to be riveted is lifted to a proper clamping height. By adding the clamping step before lifting and feeding, the feeding process is more stable, and the riveting device can adapt to magnetrons with different width sizes.

In this embodiment, as a preferred embodiment, the bottom plate 1 is vertically provided with a stripping cylinder 17, the center die 2 is provided with a downward through hole in the center, a stripping block 18 is slidably connected in the through hole, and a telescopic end of the stripping cylinder 17 passes through the bottom plate 1 and is connected with the stripping block 18.

Through setting up and taking off material cylinder 17 and taking off material piece 18, take off material cylinder 17 perpendicular to install at bottom plate 1, take off the flexible end of material cylinder 17 and set up towards bottom plate 1 below. The center die 2 is provided with a through hole in the center, the through hole is opened downwards, and the through hole can be positioned at the center of the positioning concave part and corresponds to the center of the box cover 21. The through hole is slidably connected with a stripping block 18, the shape of the stripping block 18 is matched with that of the through hole, and the stripping block 18 can be made of flexible materials such as rubber. The telescopic end of the stripping air cylinder 17 passes through the bottom plate 1 and is connected with the stripping block 18, and the stripping block 18 slides back and forth in the through hole and can extend downwards out of the through hole. When the riveting of the lid 21 is completed, the lid 21 is tightly sleeved on the inner side of the central mold 2 due to the fact that the internal structure of the positioning concave portion is matched with the top outline of the lid 21, so that the lid 21 cannot be taken out. At this time, the stripping block 18 is driven by the stripping cylinder 17 to extend from the through hole of the central mold 2, so as to eject the box cover 21 downward, thereby realizing the stripping function of the box cover 21.

In this embodiment, preferably, elastic reset mechanisms are connected between the edge riveting die 3 and the central die 2 and between the corner riveting die 4 and the central die 2, and the expansion direction of the elastic reset mechanisms is the same as the sliding direction of the edge riveting die 3 and the corner riveting die 4.

Through setting up elastic reset mechanism, can adopt reset spring, connect respectively between limit riveting die 3 and center mould 2, angle riveting die 4 and center mould 2, can be in limit riveting die 3, angle riveting die 4, the mounting hole is offered to center mould 2's lateral wall, elastic reset mechanism buries in the mounting hole, provides installation stability. The extending and contracting direction of the elastic resetting mechanism is the same as the sliding direction of the edge riveting die 3 and the corner riveting die 4. The side riveting die 3 and the corner riveting die 4 rivet the box cover 21 under the action of driving force, and the elastic reset mechanism is in a compressed state. After the box cover 21 is riveted, the pneumatic mechanism resets, the edge riveting die 3 and the corner riveting die 4 lose driving force, and the elastic resetting mechanism ejects and restores the edge riveting die 3 and the corner riveting die 4 to the initial positions, so that the resetting effect is achieved.

In this embodiment, preferably, the outer side of the central mold 2 is provided with a skirt profile 19, the cross section of the skirt profile 19 is in a wave-shaped structure, and the edge riveting mold 3 is provided with an edge riveting profile 20 corresponding to the skirt profile 19.

By providing the skirt profile 19 and the side-riveting profile 20, the skirt profile 19 is located on the outer side wall of the center die 2, and the side-riveting profile 20 is located on the side wall of the side-riveting die 3 toward the center die 2. The skirt profile 19 and the side riveting profile 20 are used as riveting work areas and correspond to the four side positions of the central die 2 and also correspond to the four side positions of the box cover 21. The skirt profile 19 is matched with the edge riveting profile 20 in shape and position, and the cross sections of the skirt profile and the edge riveting profile are of wave-shaped structures. Because four sides of the box cover 21 are longer, the metal rebound condition after the extrusion of the skirt edge of the box cover is obvious, and the unstable riveting is easily caused. By adopting the wavy structure, the metal material of the box cover skirt edge can shrink in the concave position during riveting, so that the problem of metal rebound is solved, and the riveting firmness is improved.

The foregoing description of the preferred embodiments of the present utility model is not intended to be limiting, but rather, it will be apparent to those skilled in the art that the foregoing description of the preferred embodiments of the present utility model can be modified or equivalents can be substituted for some of the features thereof, and any modification, equivalent substitution, improvement or the like that is within the spirit and principles of the present utility model should be included in the scope of the present utility model.

Claims

1. The utility model provides an automatic riveting set of lid, includes bottom plate, mould subassembly, pneumatic means, drive mechanism, fixture and feeding mechanism, its characterized in that:

2. An automated box cap riveting apparatus according to claim 1, wherein: the driving block is provided with an inclined plane at one end far away from the driving cylinder, the transmission block is rotationally connected with a roller at one end close to the driving block, and the roller is in rolling connection with the inclined plane.

3. An automated box cap riveting apparatus according to claim 1, wherein: the tong is L-shaped structure, and tong one end swing connects in limit riveting die below, and the tong other end extends has the supporting portion.

4. An automated box cap riveting apparatus according to claim 1, wherein: the outside of the clamping hand is rotationally connected with a connecting block, and the telescopic end of the clamping cylinder is connected with the clamping hand through the connecting block.

5. An automated box cap riveting apparatus according to claim 1, wherein: the feeding mechanism comprises a clamping plate which is connected with the feeding plate in a sliding manner, and a clamping cylinder which drives the clamping plate to reciprocate along the horizontal direction.

6. An automated box cap riveting apparatus according to claim 1, wherein: the bottom plate is vertically provided with a stripping cylinder, the center die is provided with a downward through hole in the center, a stripping block is connected in a sliding mode in the through hole, and the telescopic end of the stripping cylinder penetrates through the bottom plate and is connected with the stripping block.

7. An automated box cap riveting apparatus according to claim 1, wherein: elastic reset mechanisms are connected between the edge riveting die and the central die and between the corner riveting die and the central die, and the expansion direction of the elastic reset mechanisms is the same as the sliding direction of the edge riveting die and the corner riveting die.

8. An automated box cap riveting apparatus according to claim 1, wherein: the outside of the central die is provided with a skirt edge molded surface, the cross section of the skirt edge molded surface is of a wavy structure, and the edge riveting die is provided with an edge riveting molded surface corresponding to the skirt edge molded surface.