CN219211359U - Squeeze riveter for squeeze riveting skirt plate onto end plate - Google Patents

Abstract

The utility model relates to a squeeze riveter for squeeze riveting a skirt plate to an end plate, which comprises the following components: the rack is provided with a press riveting station; the end plate pressing mechanism is arranged adjacent to the press riveting station and comprises a rotating disc and a first driving mechanism; the apron board supporting mechanism is arranged adjacent to the squeeze riveting station and is used for fixing the apron board and driving the apron board to move towards the rotating disc; the squeeze riveter comprises a squeeze wheel which can laterally act on the pre-compacting piece; the apron board supporting mechanism comprises a fixed seat and at least two apron board supporting components arranged on the fixed seat, the fixed seat can rotate by taking a vertically extending rotating shaft as a rotating axis, the apron board supporting components are sequentially arranged along the circumference of the rotating axis of the fixed seat, and any one of the apron board supporting components can move to a position corresponding to a press riveting position of the frame. The apron board circle supporting operation with different sizes can be carried out at a fixed position, so that a plurality of squeeze riveter stations are not required to be arranged in the prior art, the whole volume of the squeeze riveter is reduced, and the occupied space is saved.

Description

Squeeze riveter for squeeze riveting skirt plate onto end plate

Technical Field

The utility model relates to the technical field of pipe pile processing, in particular to a squeeze riveter for squeeze rivetting a skirt plate onto an end plate.

Background

The prestressed concrete precast pile (pipe pile) is widely applied to the fields of industrial and civil buildings, highways, railways, water conservancy, ports and wharfs and the like as a concrete product. In order to facilitate the connection of the prestressed concrete precast piles, the end plates are required to be installed at the two ends of the precast concrete piles. Before the prestressed concrete precast pile is manufactured, the end plate and the strip steel (skirt plate) are riveted or welded. The side circumference of the end plate is provided with a groove, after the end plate is clamped into the apron plate, the apron plate is required to be partially pressed into the groove of the end plate to form a pressing groove structure, so that the connection of the apron plate and the groove structure is firmer, the operation is performed at present, manual operation is generally adopted, and the efficiency is lower.

In order to solve the technical problem, chinese patent application No. CN202022634971.5 (grant bulletin No. CN 213968673U) discloses a press riveting machine for press riveting a skirt plate onto an end plate, which comprises a frame, an end plate pressing mechanism, a skirt plate supporting mechanism and a press riveting mechanism, wherein the frame is provided with a press riveting station, the skirt plate supporting mechanism is used for fixing the skirt plate and can drive the skirt plate to move towards the end plate pressing mechanism, the skirt plate is sleeved outside the end plate to form a pre-compression member, a rotating disc can rotate around an axis of the rotating disc to drive the pre-compression member to rotate, a compression wheel of the press riveting mechanism can act on the pre-compression member laterally to realize the compression of the end plate and the skirt plate, the end plate pressing mechanism and the skirt plate supporting mechanism are respectively positioned at the left side and the right side of the press riveting station, positioning notches for the end plate and the skirt plate to be vertically placed are formed on the circumference of the end plate and the skirt plate, and the two sides of the positioning notch can be limited on the circumference of the end plate, so that the support is formed. The riveting equipment effectively simplifies the feeding process of the end plate and the apron board, can realize the quick positioning of the end plate and the apron board, and improves the riveting processing efficiency.

However, the riveting equipment in the above patent has a certain defect in the actual use process, in order to be capable of riveting pipe piles of different specifications (namely, the sizes of the end plates and the skirt plates are different), a plurality of riveting stations are arranged on the stand from back to front, and the sizes of positioning notches on the riveting stations on the stand in the front-back direction are matched with the sizes of the end plates and the skirt plates of different specifications, so that when the end plates and the skirt plates of different sizes are subjected to riveting processing, the corresponding end plates and the skirt plates are transferred to the riveting stations corresponding to the end plates and the skirt plates. The whole volume of the press riveting equipment is relatively large, and a large installation space is occupied; on the other hand, because different press riveting stations are arranged at one time along the front-back direction of the frame, when the press riveting stations with relatively long distances from the end plate and the apron plate workpiece storage area are selected for processing, the moving paths of the end plate and the apron plate in the feeding process are relatively long, and the press riveting processing efficiency is reduced.

Disclosure of Invention

The first technical problem to be solved by the utility model is to provide a riveting press for riveting a skirt plate onto an end plate, which aims at the current state of the art and has relatively small overall volume and reduced occupied space.

The second technical problem to be solved by the utility model is to provide a riveting press for riveting skirt plates onto end plates, which can perform in-situ rounding operation on skirt plates with different sizes, so as to improve the riveting processing efficiency.

The technical scheme adopted by the utility model for solving any one of the first technical problem and the second technical problem is as follows: a riveter for clinching a skirt to an end plate, comprising:

a frame having a press riveting station for placing an end plate and a skirt plate thereon;

the end plate pressing mechanism is arranged on the frame and is adjacent to the riveting station and comprises a rotating disc capable of rotating around the axis of the end plate pressing mechanism and a first driving mechanism for driving the rotating disc to rotate;

the apron board supporting mechanism is arranged adjacent to the riveting station and is used for fixing the apron board placed on the riveting station and driving the apron board to move towards the rotating disc, so that the apron board is sleeved outside the end plate to form a pre-compression piece, and the pre-compression piece is compressed on the rotating disc;

the riveting mechanism is positioned at one side of the riveting station and comprises a pressing wheel which can laterally act on the pre-compression piece, and the pressing wheel can press the apron board into a groove at the periphery of the end plate in the rotation process of the pre-compression piece;

the apron board supporting mechanism comprises a fixed seat and at least two apron board supporting components arranged on the fixed seat, the fixed seat can rotate by taking a vertically extending rotating shaft as a rotating axis, the apron board supporting components are sequentially arranged along the circumference of the rotating axis of the fixed seat, and any one of the apron board supporting components can move to a position corresponding to a press riveting position of the frame.

In order to be able to better prop the circle with the skirtboard fixed and drive this skirtboard towards the end plate removal to assemble more smoothly with the end plate and form precompaction piece together, every skirtboard supporting component is including locating second actuating mechanism on the fixing base and with this second actuating mechanism's power take off end continuous skirtboard prop circle mechanism, skirtboard prop circle mechanism can be driven by second actuating mechanism and be close to or keep away from relative the rolling disc, skirtboard prop circle mechanism includes:

the connecting shaft is connected with the power output end of the second driving mechanism;

the fixed disc is connected to the connecting shaft at the end part position far away from the fixed seat;

the support plates are distributed on the side wall surface of the fixed disc at intervals along the circumferential direction of the fixed disc, each support plate is provided with an arc-shaped outer edge, each support plate can move outwards along the radial direction of the fixed disc, and the outer edges of the support plates are exposed out of the circumferential edge of the fixed disc;

the expansion piece is positioned in the middle area of the side wall surface of the fixed disc and can rotate relative to the fixed disc by taking the axis of the fixed disc as a rotation axis, and the expansion piece is provided with a plurality of eccentric convex parts, and the number of the eccentric convex parts is correspondingly consistent with that of the supporting plates;

the power output end of the third driving mechanism is connected with the expansion piece and can drive the expansion piece to rotate around the axis of the fixed disc, so that each eccentric convex part of the expansion piece acts on the inner edge of the corresponding supporting plate to move each supporting plate outwards;

and the elastic piece acts on the supporting plate, so that the supporting plate always has a trend of moving inwards along the radial direction of the fixed disc.

In order to enable each supporting plate to stably and reliably move outwards to extend under the action of the expansion piece, the purpose that each supporting plate can move synchronously is achieved, the rounding effect of the apron board is guaranteed, the inner edge of each supporting plate is of a planar structure, a polygonal accommodating space taking the position of the connecting shaft as the geometric center is jointly formed by the extending faces of the planar structure of the inner edge of each supporting plate, the expansion piece is a polygonal expansion plate matched with the polygonal accommodating space, the polygonal expansion plate is arranged in the polygonal accommodating space, and each corner of the expansion plate forms each eccentric convex part of the expansion piece.

In order to reduce the resistance of the relative movement between the corner parts of the expansion plates and the inner edges of the supporting plates, each corner part of the expansion plates is provided with a first roller capable of freely rotating, and the expansion plates are propped against the inner edges of the corresponding supporting plates through each first roller.

In order to avoid the influence on the rounding effect of the skirt plate due to the concentrated arrangement of the position of a fixing disc of excessive components (particularly a driving mechanism for driving the expansion plate to rotate), the connecting shaft is of an axial hollow shaft sleeve structure, a rotating shaft which is coaxially arranged with the connecting shaft and can rotate around the axis of the connecting shaft relative to the connecting shaft is arranged in the connecting shaft, and the first end of the rotating shaft extends out of the end part of the connecting shaft and is connected with the middle part of the expansion member;

the third driving mechanism comprises a third air cylinder, and an output shaft of the third air cylinder is connected with a second end, which corresponds to the rotating shaft and stretches into the outside of the other end part of the connecting shaft, and drives the connecting shaft to rotate around the axis of the connecting shaft.

In general, the rotation of the connecting shaft may be driven by various existing driving devices such as a driving motor and a driving cylinder, but considering that a large moment is required in the process of acting on the supporting plate through the expansion plate, preferably, the skirt board supporting assembly further includes a fixing plate connected to the connecting shaft, the main body of the third cylinder is rotatably connected to the fixing plate, the power output shaft of the third cylinder is connected to the second end of the connecting shaft through a movable rod, the first end of the movable rod is rotatably connected to the power output shaft of the third cylinder, and the second end of the movable rod is rotatably connected to the second end of the connecting shaft.

In order to drive the apron board to prop the circle mechanism and stably move relative to the fixing base, the second driving mechanism comprises a second cylinder, an output shaft of the second cylinder is connected with the fixing plate, a sliding frame is arranged at one end, close to the fixing base, of the connecting shaft, and the sliding frame is connected onto the fixing base in a sliding mode through a linear sliding rail assembly.

In order to firmly compress the apron board on the rotating disc, a pre-compression piece formed by the apron board and the end plate can rotate along with the rotating disc, and the device further comprises a compressing disc which is rotationally arranged on the connecting shaft by taking the connecting shaft as a rotating center, wherein the compressing disc is close to the fixed seat along the axial direction of the connecting shaft relative to the fixed disc, and the radial dimension of the compressing disc is larger than that of the fixed disc.

As an improvement, the press riveting station of the frame is provided with a positioning notch for vertically placing the end plate and the apron board, and two opposite side edges of the positioning notch can be limited on the peripheral edge of the end plate and the peripheral part of the apron board, so that the end plate and the apron board are supported upwards.

The locating notch that sets up on the pressure riveting station of frame can make end plate and skirtboard vertically place, enters into the locating notch at end plate and skirtboard, just can realize the accurate location of both automatically, then can realize the preassembling of end plate and skirtboard through setting up end plate hold-down mechanism and skirtboard supporting mechanism in the left and right sides of pressure riveting station, finally can accomplish the pressure riveting processing through the pinch roller side direction of pressure riveting mechanism and act on the skirtboard that the preassembling accomplished. The press riveting processing mode effectively simplifies the feeding process of the end plate and the apron board, can realize the quick positioning of the end plate and the apron board, and improves the press riveting processing efficiency.

In order to adapt to the riveting processing of skirtboards and end plates with different sizes, the rack comprises a rack body and a feeding frame which is arranged on the rack body in a mode of being capable of being adjusted up and down relative to the rack body, the feeding frame extends and is arranged along the front and back directions of the rack body, the position adjacent to the rotating disc is provided with a positioning notch, the position, corresponding to the positioning notch, on the rack body is also provided with a lifting platform assembly for bearing the end plates and the skirtboards, the lifting platform assembly comprises a lifting plate and a fourth driving mechanism which is connected with the lifting plate to drive the lifting plate to move up and down, and the lifting plate can be lifted to a position consistent with the edge height of the positioning notch, so that the pre-tightening piece rolls forwards under the action of self gravity after the riveting processing is finished and is far away from the riveting station.

Compared with the prior art, the utility model has the advantages that: the apron board supporting mechanism of the riveting press comprises at least two apron board supporting components, when the apron boards with different sizes are required to be circularly fixed to be assembled with the corresponding end plates, the corresponding apron board supporting components can be moved to the positions corresponding to the riveting press positions of the frame, namely, the circle supporting operation of the apron boards with different sizes can be performed at one fixed position, so that a plurality of riveting press positions are not required to be arranged in the prior art, the whole volume of the riveting press is reduced, and the occupied space is saved; on the other hand, the circle supporting operation of the skirtboard with different sizes can be carried out at a fixed position, so that the moving path of the skirtboard in the feeding process can be shortened as much as possible, and the efficiency of the press riveting processing is improved.

Drawings

FIG. 1 is a schematic perspective view of a squeeze riveter according to an embodiment of the present utility model;

FIG. 2 is a front view of a squeeze riveter according to an embodiment of the present utility model;

FIG. 3 is a top view of a squeeze riveter according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view at A-A in FIG. 3;

FIG. 5 is a cross-sectional view at B-B in FIG. 3;

fig. 6 is a schematic perspective view of a riveting press according to an embodiment of the present utility model after omitting a skirt board supporting mechanism (the skirt board is in a state during the feeding and moving process, i.e. does not enter a positioning notch);

fig. 7 is a schematic diagram of a three-dimensional structure of the riveting press according to the embodiment of the present utility model after omitting the apron board supporting mechanism (the apron board is in a loading completion state, i.e. enters into the positioning notch);

FIG. 8 is a schematic perspective view of the skirt panel of FIG. 7 with the skirt panel omitted;

FIG. 9 is a right side view of the riveter according to the embodiment of the present utility model with the apron plate supporting mechanism omitted (the apron plate is in the state of being in the blanking process, i.e. separated from the positioning notch);

FIG. 10 is a schematic perspective view of a skirt plate supporting mechanism of a squeeze riveter according to an embodiment of the present utility model;

FIG. 11 is a schematic perspective view of one of the skirt support assemblies of the skirt support mechanism of an embodiment of the utility model;

FIG. 12 is a cross-sectional view of the skirt support assembly of FIG. 11 taken along the axis of its connecting shaft;

FIG. 13 is an exploded view of a portion of the skirt support mechanism of an embodiment of the utility model;

fig. 14 is a right side view of a skirt support mechanism according to an embodiment of the utility model.

Detailed Description

The utility model is described in further detail below with reference to the embodiments of the drawings.

Referring to fig. 1-14, a squeeze riveter for squeeze riveter skirt plate onto end plate comprises a frame 1, an end plate hold-down mechanism 2, an apron plate supporting mechanism, a squeeze riveter mechanism 4, a stop lever assembly, a feed frame 12, a stop release mechanism, and a lift platform assembly.

The frame 1 comprises a frame body 11, a feeding frame 12 and a bracket 100, wherein the feeding frame 12 and the bracket 100 are arranged on the frame body 11, and the bracket 100 is vertically arranged at the top of the frame body 11 and is used for placing the squeeze riveter mechanism 4 and the limiting rod assembly. The feeding rack 12 is also arranged at the top of the rack body 11, but at a lower height than the bracket 100. The feeder frame 12 is arranged to extend in the front-rear direction and is inclined downward from front to rear for feeding the skirt b from front to rear in a rolling manner. A positioning notch 120 is formed in the middle of the feeding frame 12, the positioning notch 120 penetrates up and down, and the position of the positioning notch 120 is the squeeze riveting station 10. During the feeding of the apron b and the end plate (not shown) in a rolling manner (the axes of the end plate and the apron extend substantially horizontally during the feeding process), the apron b and the end plate can fall into the positioning notch 120, wherein the front-back dimension of the positioning notch 120 is smaller than the diameter of the apron and the end plate with the minimum specification, and therefore, in the state that the apron and the end plate fall into the positioning notch 120, the front-back opposite two sides of the positioning notch 120 can be limited on the peripheral edge of the end plate and the peripheral part of the apron, so that the end plate and the apron are supported upwards.

Referring to fig. 5, both the left and right sides of the positioning notch 120 are arc sides recessed downward, so that the positioning notch 120 can be stopped during the loading process when the axial length of the skirt plate is relatively large. The front side and the rear side of the positioning notch 120 are respectively provided with a left supporting shaft 630 and a right supporting shafts 630, and each supporting shaft 630 is sleeved with a row of third bearings 63 capable of rotating freely, so that when the apron board falls into the positioning notch 120, the outer peripheral walls of the apron board are supported on the front and the rear rows of third bearings 63, and in the process of laterally pressing and riveting the apron board by the pressing wheel 41 of the riveting mechanism 4, smooth rotation of the apron board can be ensured.

The lift platform assembly is located in the positioning gap 120 of the feeder frame 12, specifically in the space between the front and rear rows of third bearings 63. The lifting platform assembly of the present embodiment includes a lifting plate 14 and a fourth driving mechanism connected to the lifting plate 14 to drive the lifting plate 14 to move up and down. The fourth driving mechanism comprises a fourth air cylinder 15, the fourth air cylinder 15 is fixed on the feeding frame 12, the output shaft extends vertically, and the lifting plate 14 is arranged at the top end of the output shaft of the fourth air cylinder 15. The plane of the top wall of the lifting plate 14 is inclined from front to back downwards, and specifically, the inclination angle of the top wall of the lifting plate 14 is substantially identical to the inclination angle of the feeding frame 12. When the fourth cylinder 15 acts, it can drive the lifting plate to move up and down, wherein, during the feeding process of the apron board, the lifting plate can move down to a low position to make room for allowing the apron board to enter into the positioning notch 120, after the processing of the apron board is completed, the lifting plate 14 can be lifted to a position consistent with the height of the edge of the positioning notch 120, so that the pre-compression piece (the assembly of the apron board and the end plate together) rolls forward under the action of self gravity after the processing of the riveting is completed and is far away from the riveting station 10.

Referring to fig. 5 and 6, the feeding frame 12 may be driven by a fifth cylinder 13 provided on the frame body 11 to move up and down, and when the feeding frame 12 moves to different height positions, the relative distance between the feeding frame and the rotating disc 20 is also different, so that the feeding frame can be adapted to skirting boards b of different specifications and sizes. In order to ensure stability during the lifting adjustment of the carriage 12, the fifth cylinder 13 has two cylinders arranged one behind the other for acting on the front and rear sides of the carriage 12. After the lifting of the feeding frame 12 is adjusted in place, the front end and the rear end of the feeding frame can be supported by the supporting frames 7, wherein each supporting frame 7 comprises two vertical plates 70 which are arranged at intervals left and right and extend front and rear, the two vertical plates 70 are provided with left and right through positioning holes 700, and the positioning holes 700 can be inserted into the supporting columns 71 to realize auxiliary support of the feeding frame 12. In order to meet the supporting requirement of the feeding frame 12 at different height positions, a plurality of positioning holes 700 are arranged on each vertical plate 70 in the up-down direction, and when the feeding frame 12 moves to different height positions, the supporting columns 71 are inserted into the corresponding positioning holes 700.

The rolling feeding process of the skirt plate and the end plate in this embodiment is in the prior art, and is not described in detail, for example, refer to a press riveting device for press riveting the skirt plate to the end plate in application number CN 202022634971.5.

The limiting rod assembly comprises two limiting rods 5 which extend along the front-back direction and are arranged at intervals in the left-right direction, and the two limiting rods 5 are located above the squeeze riveting station 10, so that an apron plate feeding channel for apron plates to roll from front to back is jointly defined. During the feeding process of the apron board, the apron board can be prevented from shifting or tilting in the rolling process, so that the apron board can smoothly enter the positioning notch 120 of the corresponding riveting station 10.

The bracket 100 of this embodiment is disposed on the left side of the riveting station 10, the top of the bracket 100 is provided with an auxiliary support arm 101 extending transversely to the upper side of the riveting station 10, the auxiliary support arm 101 is provided with a seventh air cylinder 51, and the power output shaft of the seventh air cylinder 51 is connected with the two limiting rods 5 through a vertically disposed suspension rod. As shown in fig. 1, the auxiliary support arms 101 have two auxiliary support arms 101 arranged at intervals, each auxiliary support arm 101 has two seventh cylinders 51 arranged in sequence from left to right, the output shaft of each seventh cylinder 51 extends vertically, and the suspension rod also has four corresponding suspension rods. The lower ends of the two suspension rods which are arranged at intervals from front to back are respectively connected with the front end and the rear end of the limiting rod 5. When the seventh air cylinder 51 acts, the limiting rod 5 can be driven to move to different height positions, so that the skirt boards with different specifications are guided and limited. The spacing between the two stop bars 5 is matched to the axial length of the apron.

Referring to fig. 6, the blocking release mechanism includes an eighth cylinder 81 and a stopper rod 8. The material blocking rod 8 is located at the front side of the press riveting station 10 in the forward direction of the apron board, and its end is hinged to the frame body 11, so that it can deflect up and down with the axis extending forward and backward as the rotation center. The power output end of the eighth cylinder 81 in this embodiment stretches up and down, and the upper end of the eighth cylinder is connected to the end of the stop rod 8. Under the driving action of the eighth cylinder 81, the material blocking rod 8 can swing downwards to a left-right extending state, the skirt board is blocked at the front side (the front side in the moving direction) of the positioning notch 120, and the skirt board can swing upwards to a vertical extending state, so that the blocking of the skirt board is relieved, and the blanking process is more stable.

Referring to fig. 1, the end plate pressing mechanism 2 and the apron board supporting mechanism of the present embodiment are both disposed on the frame body 11 and disposed near the squeeze riveting station 10. Specifically, the end plate pressing mechanism 2 is located at the left side of the squeeze riveting station 10, the apron board supporting mechanism is located at the right side of the squeeze riveting station 10, and the end plate pressing mechanism 2 and the apron board supporting mechanism are oppositely arranged.

The end plate hold-down mechanism 2 includes a first motor 21 and a rotating disc 20. The rotating disc 20 is rotatably connected to the frame body 11 through a bearing, and the end face is directed to the press riveting station 10 so as to abut against the end face of the end plate. The output shaft of the first motor 21 is connected to the rotating disk 20 so as to drive the rotating disk 20 to rotate about its own axis.

The apron board supporting mechanism is used for fixing the apron board placed on the riveting station 10 and can drive the apron board to move towards the end plate compressing mechanism 2, so that the apron board is sleeved outside the end plate to form a pre-compression piece, the pre-compression piece is compressed on the rotating disc 20, and then the rotating disc 20 rotates around the axis of the rotating disc, so that the pre-compression piece is driven to rotate.

The apron support mechanism includes a mount 30 and at least two apron support assemblies 31 disposed on the mount 30. The fixing seat 30 of this embodiment can rotate with the vertically extending rotating shaft as a rotation axis, specifically, the rotation adjustable mode is arranged on the frame body 11, the rotation axis position of the fixing seat is located in the middle of the fixing seat 30, specifically, the fixing seat 30 can be rotationally arranged on the frame body 11 through a conventional turntable structure, and the driving mode of the fixing seat 30 can be manually driven by an operator or driven by an external driving mechanism (such as a motor). Generally, the skirt support assembly 31 may be provided with two or more sets, each skirt support assembly 31 being arranged in sequence along the circumference of the rotation axis of the fixing base 30. In this embodiment, for a reasonable spatial arrangement, the apron support assembly 31 has two sets symmetrically arranged with respect to the fixing base 30, either of which can be moved to a position corresponding to the clinching station 10 of the frame 1 when the fixing base 30 is rotated 180 °.

Each apron board supporting assembly 31 comprises a second driving mechanism arranged on the fixed seat 30 and an apron board circle supporting mechanism 33 connected with the power output end of the second driving mechanism, wherein the second driving mechanism is a second air cylinder 32, and the apron board circle supporting mechanism 33 can be driven by the second air cylinder 32 to approach or separate from the rotating disc 20. The two sets of apron support assemblies 31 in this embodiment have different radii of rounding, i.e. the distance between the outer edge of the second roller 3330 on the radially movable spreader 333 and the axis of the fixed disc 332 is different, so that more sizes of apron can be adapted.

Referring to fig. 10-14, the skirt circle supporting assembly includes a connection shaft 331, a sliding frame 35, a fixing plate 332, a pressing plate 338, a plurality of supporting plates 333, an expanding member 334, an elastic member 336, and a third cylinder 335. The fixing base 30 is a frame plate frame structure with an accommodating space therein, and the above-mentioned components such as the second cylinder 32 and the sliding frame 35 are all arranged in the inner space of the fixing base in a concentrated manner.

The connecting shaft 331 extends horizontally, one end of the connecting shaft close to the fixed seat 30 is connected with the sliding frame 35, the sliding frame 35 is rod-shaped, the extending direction of the sliding frame 35 is consistent with that of the connecting shaft 331, and the sliding frame 35 is connected to the fixed seat 30 through the linear sliding rail assembly 36. Specifically, the sliding frame 35 is provided with a sliding rail 362, the fixing base 30 is provided with a sliding rail seat 361, the sliding rail 362 of the sliding frame 35 is slidably connected to the sliding rail seat 361, and the sliding rail 362 and the sliding rail seat 361 together form the linear sliding rail assembly 36.

The extending direction of the output shaft of the second cylinder 32 is consistent with the extending direction of the sliding frame 35, and when the second cylinder 32 acts, the whole apron circle supporting assembly can be driven to approach or separate from the rotating disc 20 of the end plate compressing mechanism 2.

The fixed disk 332 is fixedly connected to the end of the connecting shaft 331 far from the fixed seat 30. A pressing disc 338 for pressing the end of the apron is also provided on the connecting shaft 331, in particular rotatably connected to the connecting shaft 331 by means of a first bearing 61, wherein the pressing disc 338 is located closer to the fixing base 30 than the fixing disc 332. The spacing between the pinch plate 338 and the fixed plate 332 is adapted to the axial length of the skirt.

The plurality of support plates 333 are spaced apart along the circumferential direction of the fixing plate 332 and are movably provided on the sidewall surface of the fixing plate 332, and each support plate 333 is capable of moving outward in the radial direction of the fixing plate 332 such that the outer edges of the support plates 333 are exposed outside the circumferential edge of the fixing plate 332. Specifically, each supporting plate 333 has an arc-shaped outer edge, and the arc-shaped outer edges of the supporting plates 333 are sequentially provided with second rollers 3330 capable of freely rotating, and part of the outer peripheral wall of the second rollers 3330 is exposed to the arc-shaped outer edge of the supporting plates 333, so that the second rollers 3330 on each supporting plate 333 are supported on the inner peripheral wall of the apron board in the rounding process, the rounding effect on the apron board is ensured, and particularly, in the riveting process that the apron board is pressed into the groove of the peripheral edge of the end plate by the pressing wheel 41 of the riveting mechanism 4, the plurality of supporting plates 333 can be always kept in the rounding state exposed to the fixed disc 332 without retraction.

In order to connect the support plates 333 with the fixed plate 332 and ensure that the support plates 333 can move relative to the fixed plate 332, each support plate 333 is provided with a bar-shaped movable hole 3331, wherein the extending direction of the bar-shaped movable hole 3331 is consistent with the radial direction of the fixed plate 332. The fixing plate 332 is provided with a stopper pin 3321 corresponding to the bar-shaped movable hole 3331 of each supporting plate 333, and the stopper pin 3321 can be correspondingly inserted into the bar-shaped movable hole 3331 and restrict the supporting plate 333 to the fixing plate 332 by a stopper piece connected to the end of the stopper pin 3321. In this embodiment, two bar-shaped movable holes 3331 are provided on each of the support plates 333, and correspondingly, two stopper pins 3321 are provided on the fixing plate 332 in regions corresponding to the support plates 333.

In the present embodiment, the inner edges of the respective support plates 333 are each of a planar structure, so that the polygonal accommodating space 330 with the connection shaft 331 as the geometric center is formed by the extension surfaces of the planar structure of the inner edges of the respective support plates 333. The expansion member 334 is a polygonal expansion plate adapted to the polygonal accommodating space 330, and the polygonal expansion plate is disposed in the polygonal accommodating space 330, wherein during the rotation process of the expansion plate using the axis of the connecting shaft 331 as the rotation axis, each corner portion of the expansion plate can act on the inner edge of each supporting plate 333, and further drive each supporting plate 333 to move outwards along the radial direction of the fixing plate 332, and each corner portion of the expansion plate forms the eccentric protrusion 3341 of the expansion plate. Specifically, the number of eccentric protrusions 3341 of the expanding member 334 corresponds to the number of stay plates 333.

Each corner of the expansion plate is provided with a first roller 3340 which is free to rotate. The expansion plates are pressed against the inner edges of the corresponding support plates 333 by the first rollers 3340 to reduce the resistance of the relative movement between the top corner portions of the expansion plates and the inner edges of the support plates 333. The axial direction of the first roller 3340 coincides with the axial direction of the connection shaft 331. After the first roller 3340 is assembled in place, the outer edge of the first roller 3340 is exposed relative to the periphery of the expansion plate. In this embodiment, the first roller 3340 may employ a bearing member. As shown in fig. 14, the number of the stay plates 333 in the present embodiment is four, and correspondingly, the expansion plates are square plates, that is, the expansion plates have four apex angles.

The connection shaft 331 of the present embodiment is a hollow shaft sleeve structure in the axial direction, and a rotation shaft 337 coaxially disposed with the connection shaft 331 and rotatable about its own axis relative to the connection shaft 331 is provided inside the connection shaft 331, specifically, the rotation shaft 337 is rotatably connected inside the connection shaft 331 through a second bearing 62. The first end of the rotation shaft 337 extends beyond the end of the connection shaft 331 remote from the fixing base 30 and is connected to the middle portion of the expansion member 334. The second end of the rotation shaft 337 is extended beyond the end of the connection shaft 331 near the fixing base 30 to be connected to the second cylinder 32.

The skirt support assembly 31 further includes a securing plate 34 coupled to the coupling shaft 331. The output shaft of the second cylinder 32 is connected to the fixed plate 34. The bottom of the main body of the third cylinder 335 is rotatably coupled to the fixed plate 34, and the power output shaft of the third cylinder 335 is coupled to the second end of the coupling shaft 331 through the movable rod 339. The extending direction of the movable rod 339 is substantially perpendicular to the extending direction of the rotation shaft 337, wherein a first end of the movable rod 339 is rotatably connected to the power output shaft of the third cylinder 335, and a second end of the movable rod 339 is rotatably connected to the second end of the connection shaft 331. When the third cylinder 335 is operated, the connecting shaft 331 can be driven to rotate around the axis of the connecting shaft, and then the expansion plate is driven to rotate. The above structural design can avoid the influence on the rounding effect of the skirt board due to the position of the fixing disc 332 where too many components (especially the driving mechanism for driving the expansion plate to rotate) are intensively arranged.

The elastic member 336 of the present embodiment is a spring, which is disposed between the fixing plate 332 and the supporting plate 333. The side wall surface of the fixed disk 332 is provided with a first shutter 91, and the first shutter 91 protrudes from the side wall surface of the fixed disk 332. The support plate 333 has a strip-shaped mounting groove 3332 corresponding to the first shutter 91, and the extending direction of the strip-shaped mounting groove 3332 coincides with the radial direction of the fixed disk 332. The stay 333 is provided with a second baffle 92 at a position corresponding to the inner end of the strip-shaped mounting groove 3332 (an end near the axis of the fixed disk 332). The spring is disposed in the strip-shaped mounting groove and is located between the first shutter 91 and the second shutter 92. The supporting plate 333 is further provided with a protective case 93 covering the bar-shaped mounting groove for protecting the spring. The spring can act on the stay 333 such that the stay 333 always has a tendency to move inward in the radial direction of the fixing plate 332. The second baffle 92 is a strip-shaped plate, and the strip-shaped plate is connected to the inner side of the supporting plate 333, wherein the wall surface of the second baffle 92 facing the expanding plate forms a plane structure of the inner edge of the supporting plate 333.

The clinching mechanism 4 of the present embodiment is also provided on the bracket 100 on the side of the frame 1. The riveting mechanism 4 includes a sixth cylinder 42 and a pinch roller 41. The pinch roller 41 is connected to the end of the power take-off shaft of the sixth air cylinder 42, in particular the piston rod of the sixth air cylinder 42 can be extended downwards, so that the pinch roller 41 is driven sideways against the apron of the precompactor. The pinch roller 41 is capable of pressing the skirt into the recess in the peripheral edge of the end plate during rotation of the pre-compression member, completing the crimping process therebetween.

The action process of the squeeze riveter for squeeze riveting the skirt plate to the end plate in the embodiment:

and (3) a skirt board rounding and crimping process:

under the drive of the second cylinder 32, after the apron board circle supporting assembly 33 stretches into the apron board b and stretches into place, the pressing disc 338 of the apron board circle supporting assembly 33 abuts against the end part of the end plate, the third cylinder 335 of the apron board circle supporting assembly acts, the third cylinder 335 drives the rotating shaft 337 to rotate, the expanding plate rotates along with the rotating shaft 337, and in the rotating process of the expanding plate, all eccentric protruding parts 3341 (corner parts) of the expanding plate can act on the inner edge of all the supporting plates 333, so that all the supporting plates 333 are driven to move outwards relative to the radial direction of the fixed disc 332, and the circle supporting purpose of the apron board is achieved through the second rollers 3330 on all the supporting plates 333. After the skirt plate is rounded in place, the second cylinder 32 drives the skirt plate to move towards the end plate compressing mechanism 2 and compresses the end plate in the locating notch 120 on the rotating disc 20 of the end plate compressing mechanism 2, and at the same time, the skirt plate is sleeved outside the end plate to form a pre-compressing piece and the pre-compressing piece is compressed on the rotating disc 20. Then, the first motor 21 of the end plate pressing mechanism 2 is operated, and the rotary disk 20 is rotated, thereby rotating the pre-pressing member. Meanwhile, the sixth air cylinder 42 of the riveting mechanism 4 acts to drive the pressing wheel 41 to act on the apron board of the pre-compression member from top to bottom, so that the pressing wheel 41 presses the apron board into the groove at the periphery of the end plate in the rotation process of the pre-compression member, and the crimping process between the apron board and the end plate is completed.

In the press riveting process, each supporting plate 333 of the apron board circle supporting assembly can be always in an exposed state, namely, the circle supporting state of the apron board is kept, and the press riveting effect is further improved. After the press riveting is completed, the third cylinder 335 is reset, the expansion plates are reversely rotated, reset to the initial positions, the respective support plates 333 are moved inward in the radial direction with respect to the fixing plate 332 by the elastic force of the corresponding elastic members 336, reset to the initial state, and release the tightening state of the skirt plate.

After the crimping is completed, the pinch roller 41 of the squeeze riveter 4 is reset upwards, the rotating disc 20 of the end plate pinch mechanism 2 stops rotating, and then the second cylinder 32 of the skirt plate supporting mechanism can act to drive the skirt plate circle supporting assembly to move rightwards to the initial position.

The apron board supporting mechanism of the riveting press of the embodiment comprises at least two apron board supporting components 31, when the apron boards with different sizes are required to be circularly fixed to be assembled with the corresponding end plates, the corresponding apron board supporting components 31 can be moved to the positions corresponding to the riveting press stations 10 of the stand 1, namely, the circle supporting operation of the apron boards with different sizes can be performed at a fixed position, so that a plurality of riveting press stations 10 are not required to be arranged in the prior art, the whole volume of the riveting press is reduced, and the occupied space is saved; on the other hand, the apron board circle supporting operation with different sizes can be carried out at a fixed position, so that the moving paths of the end plate and the apron board in the feeding process can be shortened as far as possible, and the efficiency of the press riveting processing is improved.

Claims (10)

1. A riveter for clinching a skirt to an end plate, comprising:

a frame (1) having a press riveting station (10) for placing end plates and skirt plates thereon;

the end plate pressing mechanism (2) is arranged on the frame (1) and is adjacent to the press riveting station (10), and comprises a rotating disc (20) capable of rotating around the axis of the end plate pressing mechanism and a first driving mechanism for driving the rotating disc (20) to rotate;

the apron board supporting mechanism is arranged adjacent to the press riveting station (10) and is used for fixing the apron board placed on the press riveting station (10) and driving the apron board to move towards the rotating disc (20), so that the apron board is sleeved outside the end plate to form a pre-pressing piece, and the pre-pressing piece is pressed on the rotating disc (20);

the riveting mechanism (4) is positioned at one side of the riveting station (10) and comprises a pressing wheel (41) which can laterally act on the pre-pressing piece, and the pressing wheel (41) can press the apron board into a groove at the peripheral edge of the end plate in the rotation process of the pre-pressing piece;

the method is characterized in that: the apron board supporting mechanism comprises a fixed seat (30) and at least two apron board supporting components (31) arranged on the fixed seat (30), the fixed seat (30) can rotate by taking a vertically extending rotating shaft as a rotating axis, the apron board supporting components (31) are sequentially arranged along the circumferential direction of the rotating axis of the fixed seat (30), and any one of the apron board supporting components (31) can move to a position corresponding to a press riveting station (10) of the frame (1).

2. The riveter of claim 1, wherein the skirt is clinched to the end plate: each apron board supporting component (31) comprises a second driving mechanism arranged on the fixed seat (30) and an apron board circle supporting mechanism (33) connected with a power output end of the second driving mechanism, the apron board circle supporting mechanism (33) can be driven by the second driving mechanism to approach or separate from the rotating disc (20), and the apron board circle supporting mechanism (33) comprises:

the connecting shaft (331) is connected with the power output end of the second driving mechanism;

a fixed disk (332) connected to the connecting shaft (331) at a position far from the fixed seat (30);

a plurality of supporting plates (333) which are distributed on the side wall surface of the fixed plate (332) at intervals along the circumferential direction of the fixed plate (332), wherein each supporting plate (333) is provided with an arc-shaped outer edge, each supporting plate (333) can move outwards along the radial direction of the fixed plate (332), and the outer edge of each supporting plate (333) is exposed out of the periphery of the fixed plate (332);

the expanding piece (334) is positioned in the middle area of the side wall surface of the fixed disc (332) and can rotate relative to the fixed disc (332) by taking the axis of the fixed disc (332) as a rotation axis, the expanding piece (334) is provided with a plurality of eccentric convex parts (3341), and the number of the eccentric convex parts (3341) is correspondingly consistent with that of the supporting plates (333);

the third driving mechanism is connected with the expanding piece (334) at the power output end and can drive the expanding piece (334) to rotate around the axis of the fixed disc (332), so that each eccentric convex part (3341) of the expanding piece (334) acts on the inner edge of the corresponding supporting plate (333) to move each supporting plate (333) outwards;

and an elastic member (336) acting on the stay (333) so that the stay (333) always has a tendency to move inward in the radial direction of the fixing plate (332).

3. The riveter of claim 2, wherein the skirt is swaged to the end plate, wherein: the inner edge of each supporting plate (333) is of a planar structure, a polygonal accommodating space (330) taking the position of the connecting shaft (331) as a geometric center is formed by the extending surfaces of the planar structure of the inner edge of each supporting plate (333), the expanding piece (334) is a polygonal expanding plate matched with the polygonal accommodating space (330), the polygonal expanding plate is arranged in the polygonal accommodating space (330), and each corner part of the expanding plate forms each eccentric convex part (3341) of the expanding piece (334).

4. A riveter for clinching a skirt to an end plate as claimed in claim 3, wherein: each corner of the expansion plate is provided with a first roller (3340) capable of freely rotating, and the expansion plate is abutted against the inner edge of the corresponding supporting plate (333) through each first roller (3340).

5. A riveter for clinching a skirt to an end plate as claimed in claim 3, wherein: the connecting shaft (331) is of an axial hollow shaft sleeve structure, a rotating shaft (337) which is coaxially arranged with the connecting shaft (331) and can rotate around the axis of the connecting shaft (331) relative to the connecting shaft (331) is arranged in the connecting shaft (331), and a first end of the rotating shaft (337) extends out of the end part of the connecting shaft (331) and is connected with the middle part of the expanding piece (334);

the third driving mechanism comprises a third air cylinder (335), and an output shaft of the third air cylinder (335) is connected with a second end, which correspondingly stretches into the outside of the other end part of the connecting shaft (331), of the rotating shaft (337) and drives the connecting shaft (331) to rotate around the axis of the connecting shaft.

6. The riveter of claim 5, wherein the skirt is swaged to the end plate: the apron board support assembly (31) further comprises a fixed plate (34) connected with the connecting shaft (331), the main body of the third air cylinder (335) is rotationally connected to the fixed plate (34), the power output shaft of the third air cylinder (335) is connected with the second end of the connecting shaft (331) through a movable rod (339), the first end of the movable rod (339) is rotationally connected with the power output shaft of the third air cylinder (335), and the second end of the movable rod (339) is rotationally connected with the second end of the connecting shaft (331).

7. The riveter of claim 6, wherein: the second driving mechanism comprises a second air cylinder (32), an output shaft of the second air cylinder (32) is connected with the fixed plate (34), a sliding frame (35) is arranged at one end, close to the fixed seat (30), of the connecting shaft (331), and the sliding frame (35) is connected to the fixed seat (30) in a sliding mode through a linear sliding rail assembly (36).

8. The riveter of claim 2, wherein the skirt is swaged to the end plate, wherein: the connecting shaft (331) is used as a rotating center to rotate a pressing disc (338) arranged on the connecting shaft (331), the pressing disc (338) is close to the fixed seat (30) along the axial direction of the connecting shaft (331) relative to the fixed disc (332), and the radial size of the pressing disc (338) is larger than that of the fixed disc (332).

9. The riveter of any one of claims 1 to 8, wherein the skirt is clinched to the end plate: the riveting station (10) of the frame (1) is provided with a positioning notch (120) for vertically placing the end plate and the apron board, and two opposite side edges of the positioning notch (120) can be limited on the peripheral edge of the end plate and the peripheral part of the apron board, so that the end plate and the apron board are upwards supported.

10. The riveter of claim 9, wherein the skirt is swaged to the end plate: the machine frame (1) comprises a machine frame body (11) and a feeding frame (12) which is arranged on the machine frame body (11) in a mode of being capable of being adjusted up and down relative to the machine frame body (11), the feeding frame (12) extends and is arranged along the front and back directions of the machine frame body (11), a positioning notch (120) is formed in the position adjacent to the rotating disc (20), a lifting platform assembly for supporting the end plate and the apron board is further arranged on the machine frame body (11) at the position corresponding to the positioning notch (120), and the lifting platform assembly comprises a lifting plate (14) and a fourth driving mechanism which is connected with the lifting plate (14) to drive the lifting plate (14) to move up and down, and the lifting plate (14) can be lifted to the position which is consistent with the edge height of the positioning notch (120), so that the pre-pressing piece rolls forwards under the action of self gravity after the riveting processing is completed and is far away from the riveting station (10).

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