Nut squeeze riveter for sheet metal working
Technical Field
The invention relates to the field of sheet metal machining, in particular to a nut squeeze riveter for sheet metal machining.
Background
The nut is a common part in life, is widely applied, is usually riveted to a sheet metal part by using a riveting technology in the process of machining the sheet metal part, and is extruded into a prefabricated groove specially arranged in a riveting screw and nut structure by plastically deforming a base material under the external pressure so as to realize the reliable connection mode of the two parts.
In the process of nut pressure riveting, a worker is required to penetrate a nut into a hole in a pressure riveting piece, then the pressure riveting piece is placed on a pressure riveting machine, the pressure riveting machine applies pressure to the nut to enable the nut to be extruded into the pressure riveting piece, however, due to the difference of the pressure riveting pieces, such as inverted U-shaped pressure riveting pieces, square pressure riveting pieces and the like, the positions of nut pressure riveting are inconsistent, sometimes the nut needs to be pressure riveted on the outer side of the pressure riveting piece, sometimes the nut needs to be pressure riveted on the inner side of the pressure riveting piece, the existing nut pressure riveting machine can only generally perform pressure riveting on one type of pressure riveting piece, and the pressure riveting requirements of the nut on different positions on the pressure riveting piece are difficult to meet; and the nut is not limited, so that the offset is easy to occur during riveting.
Disclosure of Invention
The invention aims to overcome the defects that the prior art is difficult to meet the press riveting requirements of nuts at different positions on a press riveting piece, and the existing device has no function of limiting the nuts, so that deviation is easy to occur during press riveting.
The technical implementation scheme of the invention is as follows: the utility model provides a panel beating is with nut squeeze riveter, the on-off device comprises a base, the slide, the seat opens and shuts, the mount, the subassembly is riveted to the lower nut pressure, adjust the switching module, the removal is opened and is shut subassembly and upper nut pressure and rivet the subassembly, base top rigid coupling has the slide, it has the spout to open on the slide, slide one side rotary type is connected with two seats that open and shut, two seats that open and shut are the symmetry setting, two seat one ends of opening and shutting contact each other simultaneously, slide top rigid coupling has the mount, be equipped with on the mount that the lower nut is pressed and is riveted the subassembly and be connected with the slide, be equipped with on the lower nut is pressed and is riveted the subassembly of adjusting on the subassembly, be equipped with the removal on the mount and open and shut the subassembly, be equipped with the upper nut between base and the slide and press the subassembly.
As a further preferred scheme, the lower nut pressure riveting component comprises a hydraulic cylinder, a pressure riveting block, a fixed L-shaped rack, a rotary rod, a pinion, a large gear, a pushing rack, a sliding pushing seat and a fixed nut barrel, the hydraulic cylinder is fixedly connected to the upper portion of the fixing frame, the pressure riveting block is fixedly connected to one end of a telescopic shaft of the hydraulic cylinder and is located right above the two opening and closing seats, the fixed L-shaped rack is fixedly connected to the telescopic shaft of the hydraulic cylinder, the rotary rod is rotatably connected to the fixing frame, the pinion is fixedly connected to one end of the rotary rod, the fixed L-shaped rack is meshed with the pinion, the large gear is fixedly connected to the rotary rod, the pushing rack is slidably connected to the sliding seat, the large gear is meshed with the pushing rack, the sliding seat is slidably connected to one side far away from the closing seat, the pushing rack is fixedly connected to the sliding seat, and the fixed nut barrel is fixedly connected to one side of the sliding seat far away from the hydraulic cylinder.
As a further preferred scheme, the adjusting and switching assembly comprises a fixed seat, a sliding inclined frame, a movable driving lever and a first torsion spring, the fixed seat is fixedly connected to the top of the riveting block, the sliding inclined frame is connected to the fixed seat in a sliding mode, the movable driving lever is connected to the sliding inclined frame in a rotating mode, and the first torsion spring is connected between the movable driving lever and the sliding inclined frame.
As a further preferred scheme, the movable opening and closing assembly comprises a sliding strip, a movable groove rod, a compression spring and a fixed round tube, the lower part of the fixing frame is connected with the sliding strip in a sliding manner, one end of the sliding strip is fixedly connected with the movable groove rod, the compression spring is connected between the movable groove rod and the fixing frame, and the fixed round tube is fixedly connected to the movable groove rod.
As a further preferred scheme, the upper nut press-riveting assembly comprises a fixed guide rod, a base plate and a limiting block, the fixed guide rod is fixedly connected between the base and the sliding seat, the base plate is connected with the fixed guide rod in a sliding mode, the base plate is connected with the base in a sliding mode, the base plate is located below the sliding seat, the limiting block is fixedly connected to the top of the base plate, and the limiting block is located under the two opening and closing seats.
As further preferred scheme, still including nut centering subassembly, nut centering subassembly is located on slide and the pressure riveting piece and is connected with the backing plate, nut centering subassembly is including the gim peg, the fluting pendulum rod, torsion spring two, fixed stop and reset spring, the rigid coupling has the gim peg on the slide, the last rotation type of gim peg is connected with the fluting pendulum rod, fluting pendulum rod one end is connected with backing plate slidingtype simultaneously, be connected with torsion spring two between fluting pendulum rod and the slide, the upper portion rigid coupling of pressure riveting piece has fixed stop, the fixed stop bottom contacts with the fluting pendulum rod other end, be connected with reset spring between backing plate and the base.
As a further preferred scheme, still including locating component, locating component locates on the pressure riveting piece, and locating component is including activity extrusion stem, fixed ring piece and extrusion spring, and the last sliding type of pressure riveting piece is connected with a plurality of activity extrusion stems, and the common rigid coupling of a plurality of activity extrusion stem one end has the fixed ring piece, is connected with a plurality of extrusion springs between fixed ring piece and the pressure riveting piece, and the activity extrusion stem passes the extrusion spring.
Compared with the prior art, the invention has the following advantages:
1. when the nut needs to be pressure riveted to the outer side of the pressure riveting piece, a worker starts a hydraulic cylinder to drive the pressure riveting block to move downwards, a sliding pushing seat pushes the nut located at the lowest part of a fixed nut barrel to move between two opening and closing seats, and the pressure riveting block is used for pressure riveting the nut to the outer side of the pressure riveting piece; when the nut is needed to be riveted to the inner side of the pressure riveting piece, a worker starts a hydraulic cylinder to drive the pressure riveting piece to move downwards, a sliding pushing seat pushes a nut located at the lowest part of a fixed nut barrel to move between two opening and closing seats, then the nut between the two opening and closing seats is driven to fall onto a base plate, the nut is pressed and riveted to the inner side of the pressure riveting piece under the pressure action of the pressure riveting piece, and therefore the pressure riveting requirements of the nut on the pressure riveting piece at different positions can be met.
2. Through the cooperation of nut centering subassembly and locating component, the fluting pendulum rod drives backing plate and stopper upward movement for backing plate and stopper upward movement are close to the pressure and rivet the piece, let two open and shut the nut between the seat more accurately drop on the stopper, and at the in-process of riveting, solid fixed ring piece can earlier with the nut contact, the nut is pushed down to the solid fixed ring piece, avoids the nut to take place the skew.
Drawings
Fig. 1 is a schematic perspective view of a first embodiment of the present invention.
Fig. 2 is a schematic perspective view of a second embodiment of the present invention.
Fig. 3 is a schematic perspective view of a portion of the lower nut clinching assembly of the present invention.
Fig. 4 is an enlarged perspective view of the present invention a.
Fig. 5 is a partial perspective view of the present invention.
Fig. 6 is an enlarged perspective view of the present invention B.
Fig. 7 is an enlarged perspective view of the present invention C.
Fig. 8 is a schematic perspective view of the upper nut clinching assembly and the nut centering assembly of the present invention.
Fig. 9 is a schematic perspective view of the positioning assembly of the present invention.
Fig. 10 is a perspective view of the fixing base of the present invention.
Wherein: 1-base, 2-sliding base, 21-opening and closing base, 3-fixing base, 4-lower nut riveting component, 41-hydraulic cylinder, 42-riveting block, 43-fixing L-shaped rack, 44-rotating rod, 45-pinion, 46-bull gear, 47-pushing rack, 48-sliding pushing base, 49-fixing nut barrel, 5-adjusting switching component, 51-fixing base, 52-sliding inclined frame, 53-movable deflector rod, 54-torsion spring I, 6-moving opening and closing component, 61-sliding rod, 62-moving grooved rod, 63-compression spring, 64-fixing circular tube, 7-upper nut riveting component, 71-fixing guide rod, 73-backing plate, 74-limiting block, 8-nut centering component, 81-fixed bolt, 82-slotted swing rod, 83-torsion spring II, 84-fixed baffle, 85-return spring, 9-positioning component, 91-movable extrusion rod, 92-fixed ring sheet and 93-extrusion spring.
Detailed Description
In order to make the technical solution and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Example 1
A nut squeeze riveter for sheet metal processing is disclosed, as shown in figure 1-10, comprising a base 1, a sliding seat 2, an opening and closing seat 21, a fixed frame 3, a lower nut squeeze riveter component 4, an adjusting and switching component 5, a movable opening and closing component 6 and an upper nut squeeze riveter component 7, wherein the top of the base 1 is fixedly connected with the sliding seat 2 through bolts, the sliding seat 2 is provided with a sliding chute, one side of the sliding seat 2 is rotatably connected with two opening and closing seats 21, the two opening and closing seats 21 are symmetrically arranged, one ends of the two opening and closing seats 21 are mutually contacted, the fixed frame 3 is welded at the top of the sliding seat 2, the fixed frame 3 is provided with the lower nut squeeze riveter component 4 and is connected with the sliding seat 2, the lower nut squeeze riveter component 4 is used for squeeze riveting nuts onto a pressing piece, the lower nut squeeze riveter component 4 is provided with the adjusting and switching component 5, the movable opening and closing component 6 is arranged on the fixed frame 3, the upper nut squeeze riveter component 7 is arranged between the base 1 and the sliding seat 2, the upper nut press riveting component 7 is used for placing a press riveting piece.
The lower nut press riveting component 4 comprises a hydraulic cylinder 41, a press riveting block 42, a fixed L-shaped rack 43, a rotating rod 44, a pinion 45, a gearwheel 46, a pushing rack 47, a sliding push seat 48 and a fixed nut barrel 49, the upper part of the fixed frame 3 is fixedly connected with the hydraulic cylinder 41, one end of a telescopic shaft of the hydraulic cylinder 41 is fixedly connected with the press riveting block 42, the press riveting block 42 is used for press riveting the nut, the press riveting block 42 is positioned right above the two opening and closing seats 21, the telescopic shaft of the hydraulic cylinder 41 is welded with the fixed L-shaped rack 43, the fixed frame 3 is rotatably connected with the rotating rod 44, one end of the rotating rod 44 is fixedly connected with the pinion 45, the fixed L-shaped rack 43 is meshed with the pinion 45, the rotating rod 44 is fixedly connected with the gearwheel 46, the sliding seat 2 is slidably connected with the pushing rack 47, the gearwheel 46 is meshed with the pushing rack 47 is positioned below the gearwheel 46, one side of the sliding seat 2 far away from the closing seats 21 is slidably connected with the sliding push pushing push seat 48, the sliding push seat 48 is used for pushing a nut located at the lowest position of the fixed nut barrel 49 to move, the push rack 47 is fixedly connected with the sliding push seat 48, the fixed nut barrel 49 is fixedly connected to one side, away from the hydraulic cylinder 41, of the sliding seat 2, and the fixed nut barrel 49 is used for containing the nut.
The adjusting and switching assembly 5 comprises a fixed seat 51, a sliding inclined frame 52, a movable shifting rod 53 and a first torsion spring 54, the fixed seat 51 is welded at the top of the rivet pressing block 42, the sliding inclined frame 52 is connected to the fixed seat 51 in a sliding mode, the movable shifting rod 53 is connected to the sliding inclined frame 52 in a rotating mode, the first torsion spring 54 is connected between the movable shifting rod 53 and the sliding inclined frame 52, and the first torsion spring 54 is used for driving the movable shifting rod 53 to reset.
The movable opening and closing assembly 6 comprises a sliding strip 61, a movable groove rod 62, a compression spring 63 and a fixed circular tube 64, the lower portion of the fixing frame 3 is connected with the sliding strip 61 in a sliding mode, the movable groove rod 62 is welded to one end of the sliding strip 61, the compression spring 63 is connected between the movable groove rod 62 and the fixing frame 3, the compression spring 63 is used for driving the movable groove rod 62 to reset, and the fixed circular tube 64 is welded to the movable groove rod 62.
The upper nut press riveting assembly 7 comprises a fixed guide rod 71, a backing plate 73 and a limiting block 74, the fixed guide rod 71 is fixedly connected between the base 1 and the sliding seat 2, the backing plate 73 is connected to the fixed guide rod 71 in a sliding mode, the backing plate 73 is connected with the base 1 in a sliding mode, the backing plate 73 is located below the sliding seat 2, the limiting block 74 is fixedly welded to the top of the backing plate 73, the limiting block 74 is located under the two opening and closing seats 21, and the limiting block 74 is used for limiting the press riveting piece.
When a worker places a nut into the fixed nut barrel 49, the nut positioned at the lowest part of the fixed nut barrel 49 contacts with a sliding groove on the sliding base 2, when the nut needs to be riveted to the outer side of a rivet pressing piece, the worker starts the hydraulic cylinder 41, the hydraulic cylinder 41 extends to drive the rivet pressing block 42 and the fixed L-shaped rack 43 to move downwards, the fixed L-shaped rack 43 drives the pinion 45 and the rotating rod 44 to rotate reversely, the rotating rod 44 drives the bull gear 46 to rotate reversely, the bull gear 46 drives the pushing rack 47 and the sliding pushing base 48 to move towards the direction close to the rivet pressing block 42, the sliding pushing base 48 pushes the nut positioned at the lowest part of the fixed nut barrel 49 to move between the two opening and closing bases 21, meanwhile, the next nut in the fixed nut barrel 49 falls onto the sliding pushing base 48, the worker controls the hydraulic cylinder 41 to stop extending, the rivet pressing block 42 stops moving downwards, the worker places the rivet pressing piece on the nut between the two opening and closing bases 21, and the hole on the rivet pressing piece is penetrated on the nut, then the worker controls the hydraulic cylinder 41 to extend continuously, the hydraulic cylinder 41 can drive the rivet pressing block 42 to move downwards continuously to be contacted with the nut, under the pressure action of the rivet pressing block 42, the embossing teeth on the nut are pressed into the hole of the rivet pressing piece, and the nut is riveted to the outer side of the rivet pressing piece.
After the crimping of the nut and the pressure riveting piece is finished, a worker controls the hydraulic cylinder 41 to contract, the hydraulic cylinder 41 can drive the pressure riveting block 42 and the fixed L-shaped rack 43 to reset upwards, the fixed L-shaped rack 43 drives the pinion 45 and the rotary rod 44 to rotate clockwise, the rotary rod 44 drives the large gear 46 to rotate clockwise, the large gear 46 drives the pushing rack 47 and the sliding pushing seat 48 to reset, the next nut falls onto the sliding seat 2, and then the worker takes out the crimped nut and the pressure riveting piece.
When the nut needs to be riveted to the inner side of the rivet pressing piece, a worker firstly places the rivet pressing piece on the base plate 73, the hole in the rivet pressing piece is made to penetrate through the limiting block 74, the limiting block 74 limits the rivet pressing piece, the worker pulls the sliding inclined frame 52 to move towards the direction close to the fixed nut barrel 49, the fixed seat 51 extrudes the movable shifting rod 53 to swing downwards, the worker continuously pulls the sliding inclined frame 52 to move towards the direction close to the fixed nut barrel 49, the sliding inclined frame 52 moves right above the fixed circular tube 64, the fixed seat 51 does not extrude the movable shifting rod 53 any more, the first torsion spring 54 resets and drives the movable shifting rod 53 to reset, and the fixed seat 51 clamps the movable shifting rod 53; then the worker controls the hydraulic cylinder 41 to extend, the hydraulic cylinder 41 drives the rivet pressing block 42 and the fixed seat 51 to move downwards, the fixed seat 51 drives the sliding inclined frame 52 to move downwards, then the sliding inclined frame 52 continues to move downwards and pushes the fixed circular tube 64 and the movable groove rod 62 to move towards the direction close to the fixed nut tube 49, the movable groove rod 62 drives the two opening and closing seats 21 to swing outwards, a nut between the two opening and closing seats 21 falls downwards, the nut is threaded on the limiting block 74, then the rivet pressing block 42 continues to move downwards and can press the nut downwards, and the nut is pressed and riveted to the inner side of the rivet pressing piece under the pressure effect of the rivet pressing block 42. Through the operation, the pressing riveting requirements of the nut at different positions on the pressing riveting piece can be met.
Then, the worker controls the hydraulic cylinder 41 to contract, the hydraulic cylinder 41 drives the fixed seat 51 and the sliding inclined frame 52 to reset upwards, so that the sliding inclined frame 52 is separated from the fixed circular tube 64, the compression spring 63 resets accordingly and drives the movable grooved rod 62 and the fixed circular tube 64 to reset towards the direction away from the fixed nut barrel 49, and the movable grooved rod 62 drives the opening and closing seat 21 to reset; then, the worker presses the movable lever 53 with one hand to swing downward so that the fixed base 51 no longer catches the movable lever 53, and the worker pulls the slide bracket 52 with the other hand to return in a direction away from the fixed nut barrel 49, and releases the movable lever 53.
Example 2
On the basis of embodiment 1, as shown in fig. 8, the nut centering device 8 is further included, the nut centering device 8 is disposed on the sliding seat 2 and the rivet pressing block 42 and connected to the pad plate 73, the nut centering device 8 is used for enabling nuts between the two opening and closing seats 21 to more accurately drop onto the limiting block 74, the nut centering device 8 includes a fixing bolt 81, a slotted swing rod 82, a second torsion spring 83, a fixing baffle 84 and a return spring 85, the sliding seat 2 is fixedly welded with the fixing bolt 81, the fixing bolt 81 is rotatably connected to the slotted swing rod 82, one end of the slotted swing rod 82 is slidably connected to the pad plate 73, the second torsion spring 83 is connected between the slotted swing rod 82 and the sliding seat 2, the second torsion spring 83 is used for driving the slotted swing rod 82 to reset, the fixing baffle 84 is fixedly connected to the upper portion of the rivet pressing block 42, the bottom of the fixing baffle 84 is in contact with the other end of the slotted swing rod 82, the return spring 85 is connected between the pad plate 73 and the base 1, the return spring 85 is used for driving the backing plate 73 to return.
When the rivet pressing block 42 moves downwards, the rivet pressing block 42 drives the fixed baffle 84 to move downwards, the fixed baffle 84 pushes the slotted swing rod 82 to swing, one end of the slotted swing rod 82 drives the backing plate 73 and the limiting block 74 to move upwards, so that the backing plate 73 and the limiting block 74 move upwards to be close to the rivet pressing block 42, and the nut between the two opening and closing seats 21 can accurately fall onto the limiting block 74; when the rivet pressing block 42 is reset upwards, the rivet pressing block 42 drives the fixed baffle 84 to reset upwards, the fixed baffle 84 does not press one end of the slotted swing rod 82 any more, the second torsion spring 83 resets and drives the slotted swing rod 82 to reset, and the slotted swing rod 82 drives the backing plate 73 and the limiting block 74 to reset downwards.
Example 3
On embodiment 2's basis, as shown in fig. 9, still including locating component 9, locating component 9 locates on the pressure riveting piece 42, locating component 9 is used for avoiding the nut to take place the skew, make the nut more accurately ground to the downthehole of pressure riveting piece, locating component 9 is including activity extrusion stem 91, fixed ring piece 92 and extrusion spring 93, sliding type is connected with a plurality of activity extrusion stems 91 on the pressure riveting piece 42, the common rigid coupling of a plurality of activity extrusion stems 91 one end has fixed ring piece 92, fixed ring piece 92 is used for pushing down the nut, be connected with a plurality of extrusion springs 93 between fixed ring piece 92 and the pressure riveting piece 42, and activity extrusion stem 91 passes extrusion spring 93, extrusion spring 93 is used for driving fixed ring piece 92 to reset.
In the process of pressure riveting, the fixed ring sheet 92 can contact with the nut firstly, the fixed ring sheet 92 presses the nut to avoid the nut from deviating, and then the pressure riveting block 42 contacts the nut, so that the nut is pressed into the hole of the pressure riveting piece more accurately, and the processing quality of the nut and the pressure riveting piece is improved.
While the present invention has been described with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, which are illustrative and not restrictive, and it will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the invention as defined in the appended claims.