CN214814518U - Riveting press - Google Patents

Abstract

The utility model relates to a riveting technical field discloses a riveting machine, riveting machine includes: the riveting device comprises a mounting seat, a first driving mechanism, an upper riveting head, a lower riveting head and a sliding assembly, wherein the first driving mechanism, the upper riveting head and the lower riveting head are arranged on the mounting seat, and the sliding assembly is used for driving the mounting seat to move in a set stroke range along a straight line; the upper riveting head is connected with the movable end of the first driving mechanism; the lower rivet head is positioned on the mounting seat and arranged towards the upper rivet head; the first driving mechanism can drive the upper riveting head to move close to and away from the lower riveting head. Through the technical scheme, based on the arrangement of the sliding assembly, the mounting seat can be driven to move back and forth along a straight line within a set stroke range. Thereby breaking through the limit of the riveting press on the stroke. Compared with the prior art, the riveting operation can be executed at different positions of the workpiece without manually adjusting the position of the workpiece, so that the precision and the quality of finished workpieces are improved, and the production efficiency is improved.

Description

Riveting press

Technical Field

The utility model relates to a riveting technical field specifically relates to a riveting machine.

Background

Riveting is an ancient connecting method, has application as early as thousands of years ago, and still has an indispensable position in many industries at present. In recent years. With the progress of modern industry, especially the rapid development of the manufacturing industries of airplanes, automobiles, hardware and the like, the requirements on the riveting structure and the riveting process are continuously improved, so that various new processes and technologies are continuously generated, the traditional riveting connection method generates new vitality, and the technical content is greatly improved.

The rolling riveting technology is a modern riveting technology with strong representativeness developed in recent years. The rolling riveting technology originates from the sixties of the last century, and has the advantages of high riveting quality, low energy consumption (small riveting force, high efficiency), no noise and the like; in addition, the riveting device has strong adaptability, can be used for riveting with a rivet and also can be used for riveting without a rivet, and is adequate for a plurality of difficult-to-rivet materials and special joint shapes. Therefore, roll riveting technology is becoming increasingly widely used in many industries.

In the prior art, the rivet head of the riveting press is limited in the X, Y direction, namely, the stroke in the X, Y direction is limited, so that a certain processing range is obtained. In the prior art, riveting is generally performed at different positions of a workpiece by manually adjusting the position of the workpiece, and this adjustment method may result in a reduction in production efficiency on one hand and a certain deviation on the other hand, resulting in a reduction in precision and quality of a finished workpiece.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a riveting machine to overcome prior art's riveting machine restriction on the stroke, lead to the precision of finished product work piece and the problem of quality reduction.

In order to achieve the above object, the utility model provides a riveting machine, riveting machine includes: the riveting device comprises a controller, an installation seat, a first driving mechanism, an upper riveting head, a lower riveting head and a sliding assembly, wherein the first driving mechanism, the upper riveting head and the lower riveting head are arranged on the installation seat, and the sliding assembly is used for driving the installation seat to move in a set stroke range along a straight line;

the upper riveting head is connected with the movable end of the first driving mechanism; the lower rivet head is positioned on the mounting seat and arranged towards the upper rivet head; the first driving mechanism can drive the upper riveting head to move close to and away from the lower riveting head; the first drive mechanism and the slide assembly are electrically connected to the controller.

Through the technical scheme, based on the arrangement of the sliding assembly, the mounting seat can be driven to move back and forth along a straight line within a set stroke range. Thereby breaking through the limit of the riveting press on the stroke. Compared with the prior art, the riveting device has the advantages that riveting can be carried out at different positions of the workpiece without manually adjusting the position of the workpiece, the precision and the quality of finished workpieces are improved, and the production efficiency is improved.

Further, the first driving mechanism comprises any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder and a gas-liquid pressure cylinder, and the upper riveting head is connected with a piston rod of the hydraulic cylinder/the pneumatic cylinder/the electric cylinder/the gas-liquid pressure cylinder.

Further, the first driving mechanism further comprises a displacement sensor and/or a pressure sensor;

the displacement sensor is used for detecting the stroke of a piston rod of the hydraulic cylinder, the pneumatic cylinder or the electric cylinder; the pressure sensor is used for detecting the pressure applied to the upper riveting head.

Further, the sliding assembly comprises a base, a lead screw assembly and a driving motor;

the screw rod assembly comprises a screw rod parallel to the base, a nut sleeved on the screw rod and a sliding seat fixedly connected with the nut; the sliding seat is fixedly connected with the mounting seat; and an output shaft of the driving motor is connected with the lead screw and is used for driving the lead screw to rotate.

Furthermore, the sliding assembly further comprises a first guide rail arranged on the base and parallel to the lead screw, a first sliding block connected with the first guide rail in a sliding manner, a second guide rail arranged on the base and parallel to the lead screw, and a second sliding block connected with the second guide rail in a sliding manner; the first sliding block and the second sliding block are fixedly connected with the mounting seat.

Further, the sliding assembly comprises a base and a linear motor; the linear motor comprises a third guide rail arranged on the base and a third sliding block connected with the third guide rail in a sliding manner, and the mounting seat is fixedly connected with the third sliding block.

Further, the riveting press also comprises a workbench;

the workstation includes the revolving stage, is used for the drive revolving stage pivoted motor, setting are in the bottom plate of revolving stage up end, setting are in the top of revolving stage and with the top board that the bottom plate aligns and be used for the drive the top board orientation is kept away from the second actuating mechanism of bottom plate motion.

Preferably, the second driving mechanism comprises any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder and an air-liquid pressurization cylinder.

Furthermore, a first through hole is formed in the lower supporting plate, and a second through hole aligned with the first through hole is formed in the upper pressing plate.

Further, the riveting press also comprises a material taking mechanism; the material taking mechanism comprises a sucker, a sucker mounting seat used for mounting the sucker, a first driving assembly used for driving the sucker mounting seat to move in the horizontal direction and a second driving assembly used for moving in the vertical direction.

Further, the riveting press machine also comprises a screw machine, and the screw machine is used for arranging rivets in an array.

Other features and advantages of the present invention will be described in detail in the detailed description which follows.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the riveting press of the present invention;

FIG. 2 is a schematic view of a portion of the structure of FIG. 1;

FIG. 3 is a schematic structural view of one embodiment of a slide assembly;

FIG. 4 is a schematic structural view of one embodiment of a lead screw assembly;

FIG. 5 is a schematic diagram of the structure of one embodiment of the table;

FIG. 6 is a schematic structural view of one embodiment of an upper platen and a lower plate;

FIG. 7 is a schematic diagram of a construction of one embodiment of a take off mechanism;

fig. 8 is a schematic view of the structure of fig. 1 from another perspective.

Description of the reference numerals

1, mounting a base; 2 a first drive mechanism; 3, riveting heads; 4, riveting heads; 5, a sliding component; 51 a base; 52 driving the motor; 53 leading screw; 54 a nut; 61 a rotating table; 63, a lower supporting plate; 65 a second drive mechanism; 67 a second through hole; 71 a suction cup; 73 a first drive assembly; 6, a workbench; 62 a motor; 64, an upper pressure plate; 66 a first through hole; 7, a material taking mechanism; 72 a suction cup mounting seat; 74 a second drive assembly; 8, a screw machine; 9, supporting the table; 10 universal wheels; 20 pins; 59 lead screw mounting base.

Detailed Description

The following describes the embodiments of the present invention in detail. It is to be understood that the description of the embodiments herein is for purposes of illustration and explanation only and is not intended to limit the invention.

In the present invention, the use of the terms of orientation such as "upper and lower" in the case where no description is made to the contrary generally means the orientation in the assembled and used state. "inner and outer" refer to the inner and outer contours of the respective component itself.

It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged under appropriate circumstances for purposes of describing the embodiments of the invention herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

The utility model discloses in provide a riveting machine, as shown in fig. 1 and fig. 2, riveting machine includes: the riveting device comprises a mounting base 1, a first driving mechanism 2, an upper riveting head 3, a lower riveting head 4 and a sliding assembly 5, wherein the first driving mechanism 2, the upper riveting head 3, the lower riveting head 4 and the sliding assembly 5 are arranged on the mounting base 1;

the upper rivet head 3 is connected with the movable end of the first driving mechanism 2; the lower rivet head 4 is positioned on the mounting seat 1 and arranged towards the upper rivet head 3; the first driving mechanism 2 can drive the upper riveting head 3 to move close to and away from the lower riveting head 4.

Through the technical scheme, based on the arrangement of the sliding assembly 5, the mounting seat 1 can be driven to move back and forth along a straight line within a set stroke range. Thereby breaking through the limit of the riveting press on the stroke. Compared with the prior art, the riveting operation can be executed at different positions of the workpiece without manually adjusting the position of the workpiece, so that the precision and the quality of finished workpieces are improved, and the production efficiency is improved.

In an alternative embodiment, the first driving mechanism 2 includes any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, and an air-liquid pressurizing cylinder. The upper rivet head 3 is connected with a piston rod of the hydraulic cylinder/pneumatic cylinder/electric cylinder/pneumatic-hydraulic pressure cylinder. Taking a hydraulic cylinder as an example, when the hydraulic cylinder extends, the upper rivet head 3 moves towards the lower rivet head 4. In an alternative embodiment, the upper rivet 3 is mounted on the piston rod by means of an upper rivet mount.

The electric cylinder adopts closed-loop servo control, and the control precision reaches 0.01 mm; the thrust is precisely controlled, a pressure sensor is added, and the control precision can reach 1%; the device is easy to be connected with control systems such as a PLC and the like, and high-precision motion control is realized. Low noise, energy saving, cleanness, high rigidity, impact resistance, super long service life and simple operation and maintenance. The electric cylinder can be free of faults in a severe environment, and the protection grade can reach IP 66. Long-term working, high strength, high speed, high-precision positioning, stable movement and low noise. Based on the above-mentioned advantages of the servomotor, in a preferred embodiment, the first drive mechanism 2 is an electric cylinder.

In the prior art, a workpiece is usually riveted by using a constant riveting pressure, and the riveting method has the disadvantages that: different riveting pressures are sometimes needed to be adopted for riveting different parts on the same workpiece or different workpieces, and the constant riveting pressure is adopted for riveting the joint with different riveting pressures, so that the riveting quality is inevitably reduced, and the quality of finished workpieces is further reduced. In view of the above, the first drive mechanism 2 further comprises a displacement sensor and/or a pressure sensor. The displacement sensor is used for detecting the stroke of a piston rod of the hydraulic cylinder, the pneumatic cylinder or the electric cylinder; the pressure sensor is used for detecting the pressure applied to the upper riveting head 3. Under the normal working state of the riveting press, the extension length of the piston rod and the riveting pressure are convertible and proportional, that is, the longer the piston rod extends, the larger the riveting pressure applied by the riveting head is, and the smaller the riveting pressure is. Therefore, in practice, it is desired to apply different riveting pressures to different workpieces or different parts of the same workpiece, and this can be achieved only by a pressure sensor or a displacement sensor. The working principle is as follows: setting a length threshold value a for extending the piston rod, detecting the extending length of the piston rod through a displacement sensor, transmitting a signal to a controller by the displacement sensor when the extending length of the piston rod reaches the threshold value a, and controlling the hydraulic cylinder or the pneumatic cylinder to stop extending by the controller; and setting a riveting pressure threshold value b, when the riveting pressure on the upper riveting head 3 reaches the threshold value b, transmitting a signal to a controller by a pressure sensor, and controlling the piston rod to stop extending by the controller. So, riveting machine can realize exerting suitable riveting pressure to the junction of different riveting pressure demands.

In the above, the controller may be a controller built in the hydraulic cylinder, the pneumatic cylinder, or may be another additional controller.

In a preferred embodiment, the controller is a controller additionally provided. The first driving mechanism 2, the sliding assembly 5, the material taking mechanism 7, the third driving mechanism and the screw machine 8 are all electrically connected with the controller. Thus, all components of the whole riveting machine can be controlled through one control. Preferably, the controller is a PLC controller.

In view of the fact that the riveting press may be out of order, for example, the upper rivet head 3 is jammed, i.e. the upper rivet head 3 is not aligned with the rivet, but the riveting pressure is applied to other parts of the workpiece. In a preferred embodiment, therefore, both a pressure sensor and a displacement sensor are provided. When the pressure value detected by the pressure sensor reaches the threshold value b and the extension length of the piston rod does not reach the threshold value a, the fact that the pressure of the piston rod is not applied to the rivet (for example, the rivet is clamped by other parts of the workpiece) is indicated. At the moment, the technical scheme of simultaneously arranging the pressure sensor and the displacement sensor shows the function of the pressure sensor, and the pressure sensor can play the roles of detecting pressure and removing obstacles.

Three specific embodiments of the sliding assembly are provided below:

the first embodiment is as follows: as shown in fig. 3, the sliding assembly 5 includes a base 51, a lead screw assembly, and a driving motor 52. As shown in fig. 4, the lead screw assembly includes a lead screw 53 parallel to the base 51, a nut 54 sleeved on the lead screw 53, and a sliding seat 55 fixedly connected to the nut 54; the sliding seat 55 is fixedly connected with the mounting seat 1; an output shaft of the driving motor 52 is connected with the lead screw 53 and is used for driving the lead screw 53 to rotate. Further, the two ends of the lead screw 53 are provided with lead screw installation seats 59, the lead screw 53 is rotatably connected with the lead screw installation seats 59, and the rotary connection between the lead screw 53 and the lead screw installation seats can be realized through bearings.

The second embodiment is as follows: as shown in fig. 3, in the first embodiment, the sliding assembly 5 further includes a first guide rail 55b disposed on the base 51 and parallel to the lead screw 53, a first slider 56 slidably connected to the first guide rail 55b, a second guide rail 57 disposed on the base 51 and parallel to the lead screw 53, and a second slider 58 slidably connected to the second guide rail 57; the first sliding block 56 and the second sliding block 58 are both fixedly connected with the mounting base 1. Meanwhile, the sliding seat 55, the first sliding block 56 and the second sliding block 58 are arranged to increase the supporting points of the mounting seat 1, so that the stability of the mounting seat 1 can be ensured.

The third concrete implementation mode: as shown in fig. 3, the sliding assembly 5 includes a base 51 and a linear motor; the linear motor comprises a third guide rail arranged on the base 51 and a third sliding block connected with the third guide rail in a sliding manner, and the mounting base 1 is fixedly connected with the third sliding block.

As shown in fig. 1 and 5, the riveting press further comprises a work table 6. The working table comprises a rotating table 61, a motor 62 for driving the rotating table 61 to rotate, a lower supporting plate 63 arranged on the upper end surface of the rotating table 61, an upper pressure plate 64 arranged above the rotating table 61 and aligned with the lower supporting plate 63, and a second driving mechanism 65 for driving the upper pressure plate 64 to move towards and away from the lower supporting plate 63. Therefore, the contact area between the rotating table 61 and the workpiece can be increased, the stability of the workpiece is improved, the stability during riveting is further improved, and the precision and the quality of the finished workpiece are improved.

In a preferred embodiment, the second drive mechanism comprises a hydraulic or pneumatic cylinder or a pneumatic cylinder. Based on the advantages of the electric cylinder, the second driving mechanism is further selected from the electric cylinder.

In order to prevent the workpiece from moving in the horizontal direction and to press and position the workpiece, the riveting quality and the accuracy of the finished workpiece are improved. As shown in fig. 6, a first through hole 66 is provided in the lower plate 63, and a second through hole 67 aligned with the first through hole 66 is provided in the upper platen 64. In actual operation, the workpiece is fixed in the horizontal direction by inserting the pin 20 into a part of the first through hole 66, a part of the second through hole 67, and a part of the through hole in the workpiece at the same time.

As shown in fig. 1 and 7, the riveting press further includes a material taking mechanism 7 and a screw machine 8. The material taking mechanism 7 comprises a suction cup 71, a suction cup mounting seat 72 for mounting the suction cup 71, a first driving assembly 73 for driving the suction cup mounting seat 72 to move in the horizontal direction, and a second driving assembly 74 for moving in the vertical direction. The screw machine 8 is used for rivet alignment. After the rivets are aligned by the screw machine 8, the material taking mechanism 7 can take materials conveniently. The suction cup 71 adopts the principle of a dust collector: a negative pressure is generated at the suction cup 71 by a motor and a fan, and based on the negative pressure, the rivet is sucked and grasped. The first driving assembly 73 and the second driving assembly 74 may be any one of a linear motor, a screw assembly, a pneumatic cylinder, a hydraulic cylinder, an electric cylinder, and a pneumatic/hydraulic cylinder.

As shown in fig. 8, the riveting press further includes a support table 9, and a universal wheel 10 and a brake corresponding to the universal wheel 10 are disposed at the bottom of the support table 9.

In addition, the riveting press further comprises supporting legs and a third driving mechanism for driving the supporting legs to move in the vertical direction, and the supporting legs are arranged at four corners of the supporting table 9. The third driving mechanism can be any one of a pneumatic cylinder, a hydraulic cylinder, an electric push rod, an electric cylinder and a gas-liquid pressure cylinder. The fixed end of the third driving mechanism is fixedly connected with the bottom of the supporting platform 9, and the other end of the third driving mechanism is fixedly connected with the supporting legs. It should be noted that, after the third driving mechanism drives the supporting legs, the universal wheels 10 may be separated from the ground, so that the supporting legs are in contact with the ground. When the third driving mechanism retracts the supporting legs, the supporting legs leave the ground, and the universal wheels 10 are in contact with the ground. The universal wheel 10 can improve the overall maneuverability of the riveting machine, and the supporting legs and the third driving mechanism can improve the stability of the riveting machine.

Use riveting brake disc ripple piece and friction disc as the example, briefly explain the utility model discloses riveting machine's theory of operation:

the through holes of the corrugated plates and the through holes of the friction plates are aligned and placed on the lower support plate 63 such that the through holes of the corrugated plates and the through holes of the friction plates are aligned with the first through holes 66 of the lower support plate 63. The pins 20 are inserted into the through holes of the corrugated plate, the through holes of the friction plates, and the first through holes 66 at the same time, preventing the corrugated plate and the friction plates from being misaligned. The upper pressure plate 64 is driven to move downwards by the second driving mechanism 65, so that the friction plates and corrugated plates are clamped by the upper pressure plate 64 and the lower supporting plate 63 together. Since the first through holes 66 and the second through holes 67 on the upper platen 64 are aligned, the pins will be inserted into portions of the first through holes 66 and the second through holes 67 at the same time. The material taking mechanism 7 grabs rivets from the screw machine 8 and puts the rivets at the riveting position of the corrugated sheet and the friction sheet. The upper riveting head 3 is driven by the first driving mechanism 2 to move towards the lower riveting head 4 to execute riveting action. Based on the arrangement of the motor 62, the rotary table 61 and the slide assembly 5, the riveting machine can perform the riveting operation on any position of the workpiece one by one.

It should be emphasized that the riveting press of the present invention performs the riveting operation one by one, and a plurality of different operations are performed simultaneously. The advantage of this is that the required riveting pressure can be applied to different riveting points of the workpiece. Compared with the prior art, the method has better pertinence and provides the quality of finished workpieces.

The above detailed description describes the preferred embodiments of the present invention, but the present invention is not limited to the details of the above embodiments, and the technical idea of the present invention can be within the scope of the present invention, and can be right to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. In order to avoid unnecessary repetition, the present invention does not separately describe various possible combinations.

In addition, various embodiments of the present invention can be combined arbitrarily, and the disclosed content should be regarded as the present invention as long as it does not violate the idea of the present invention.

Claims (11)

1. A riveting press, characterized in that the riveting press comprises: the riveting device comprises a controller, an installation seat (1), a first driving mechanism (2) arranged on the installation seat (1), an upper riveting head (3), a lower riveting head (4) and a sliding assembly (5) used for driving the installation seat (1) to move in a set stroke range along a straight line;

the upper riveting head (3) is connected with the movable end of the first driving mechanism (2); the lower riveting head (4) is positioned on the mounting seat (1) and arranged towards the upper riveting head (3); the first driving mechanism (2) can drive the upper riveting head (3) to move close to and far away from the lower riveting head (4); the first driving mechanism (2) and the sliding assembly (5) are electrically connected with the controller.

2. The riveting press according to claim 1, characterized in that the first driving mechanism (2) comprises any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder and an air-hydraulic pressurizing cylinder, and the upper riveting head (3) is connected with a piston rod of the hydraulic cylinder/pneumatic cylinder/electric cylinder/air-hydraulic pressurizing cylinder.

3. The riveting press according to claim 2, characterized in that the first drive mechanism (2) further comprises a displacement sensor and/or a pressure sensor;

the displacement sensor is used for detecting the stroke of a piston rod of the hydraulic cylinder, the pneumatic cylinder or the electric cylinder; the pressure sensor is used for detecting the pressure applied to the upper riveting head (3).

4. The riveting press according to claim 1, characterized in that the sliding assembly (5) comprises a base (51), a lead screw assembly and a drive motor (52);

the screw rod assembly comprises a screw rod (53) parallel to the base (51), a nut (54) sleeved on the screw rod (53) and a sliding seat (55) fixedly connected with the nut (54); the sliding seat (55) is fixedly connected with the mounting seat (1); an output shaft of the driving motor (52) is connected with the lead screw (53) and is used for driving the lead screw (53) to rotate.

5. The riveting press according to claim 4, characterized in that the sliding assembly (5) further comprises a first guide (55 b) arranged on the base (51) and parallel to the lead screw (53), a first slider (56) slidably connected to the first guide (55 b), a second guide (57) arranged on the base (51) and parallel to the lead screw (53), and a second slider (58) slidably connected to the second guide (57); the first sliding block (56) and the second sliding block (58) are fixedly connected with the mounting base (1).

6. The riveting press according to claim 1, characterized in that the sliding assembly (5) comprises a base (51) and a linear motor; the linear motor comprises a third guide rail arranged on the base (51) and a third sliding block connected with the third guide rail in a sliding manner, and the mounting base (1) is fixedly connected with the third sliding block.

7. The riveting press according to any one of claims 1-6, characterized in that the riveting press further comprises a work table (6);

the workbench comprises a rotating platform (61), a motor (62) for driving the rotating platform (61) to rotate, a lower supporting plate (63) arranged on the upper end face of the rotating platform (61), an upper pressing plate (64) arranged above the rotating platform (61) and aligned with the lower supporting plate (63), and a second driving mechanism (65) for driving the upper pressing plate (64) to move towards and away from the lower supporting plate (63).

8. The riveter press of claim 7, wherein the second drive mechanism comprises any one of a hydraulic cylinder, a pneumatic cylinder, an electric cylinder, and an air and liquid pressurized cylinder.

9. The riveting press according to claim 7, characterized in that the lower carrier (63) is provided with a first through hole (66) and the upper pressure plate (64) is provided with a second through hole (67) aligned with the first through hole (66).

10. The riveter press of claim 7, characterized in that it further comprises a take-off mechanism (7); the material taking mechanism (7) comprises a sucker (71), a sucker mounting seat (72) used for mounting the sucker (71), a first driving assembly (73) used for driving the sucker mounting seat (72) to move in the horizontal direction and a second driving assembly (74) used for moving in the vertical direction.

11. The riveting press according to claim 1, characterized in that the riveting press further comprises a screw machine (8), the screw machine (8) being used for rivet alignment.

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