CN214290657U - Punching riveting machine with complete servo driving system - Google Patents
Punching riveting machine with complete servo driving system Download PDFInfo
- Publication number
- CN214290657U CN214290657U CN202120032801.1U CN202120032801U CN214290657U CN 214290657 U CN214290657 U CN 214290657U CN 202120032801 U CN202120032801 U CN 202120032801U CN 214290657 U CN214290657 U CN 214290657U
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- Prior art keywords
- riveting
- servo motor
- pressure sensor
- pressure
- punch
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- 238000004080 punching Methods 0.000 title abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000008713 feedback mechanism Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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Abstract
The utility model provides a punching press riveter that has complete servo drive system, its characterized in that: the device comprises a servo motor, a screw rod mechanism, a cylinder body, a pressure platform, a pressure sensor and a controller; the screw rod mechanism converts the rotation of the output shaft of the servo motor into the linear motion of the punch in the cylinder body; the pressure platform is positioned on a linear motion path of the punch; the pressure sensor is arranged at the bottom of the pressure platform; the servo motor and the pressure sensor are electrically connected with the controller respectively, and the pressure sensor is used as a trigger switch of the working state of the servo motor. When the rivet is punched, the closed-loop servo driving system controls riveting, so that the riveting efficiency and the punched rivet length are accurately controlled, the stable riveting and riveting quality is ensured, and a variation curve of pressure along with the rivet length can be generated.
Description
Technical Field
The utility model belongs to the technical field of the riveter, especially, relate to a punching press riveter that has complete servo drive system.
Background
The riveting machine is mechanical equipment for riveting objects by rivets (solid rivets, hollow rivets and hollow rivets). The assembly is mainly completed by rotation and pressure, and the riveting device is mainly applied to occasions needing rivet riveting. Common riveting machines use pneumatic and hydraulic riveting, and are applied to electromagnetic riveting technologies and the like in specific occasions.
For pneumatic riveting and hydraulic riveting, a radial riveting method and a swing riveting method are common riveting, and the swing riveting method is characterized in that a riveting head firstly performs point contact on a workpiece and simultaneously pressurizes the surface of the workpiece through an air cylinder or a hydraulic cylinder, and simultaneously performs all-directional rolling, so that the surface of the workpiece is instantaneously deformed to generate a riveting effect. Whereas the radial riveting method is to press a central point and then deform and roll the metal around. The riveting quality is unstable and the efficiency is low due to the fact that the length of the punch rivet is not easy to accurately control in the pneumatic riveting and hydraulic riveting technologies, the operation noise of a machine is large, whether the connection between an air pipe and a joint is firm or not is noticed in the pneumatic riveting, air leakage is prevented, oil leakage of a hydraulic cylinder is prevented in the hydraulic riveting, and the hydraulic environment is not good. For electromagnetic riveting, the electromagnetic riveting is a novel riveting process for plastically deforming a rivet by using eddy current repulsion force generated between a primary coil and a secondary coil. The loading rate is high, the strain rate is large, the deformation mode of the material is different from quasi-static loading modes such as rivet pressing and the like, and the deformation of the rivet rod is uniform. However, the price is expensive, the equipment is large, and the application occasions are the occasions for riveting large-diameter rivets.
SUMMERY OF THE UTILITY MODEL
The defect and not enough to prior art exist, the utility model provides a scheme that has complete servo drive system's punching press riveter to a riveting steady quality, efficient and operational environment is good device is provided, forms riveting closed loop servo, reaches the accurate riveting. Meanwhile, the curve of the pressure changing along with the time in the process of punching the rivet can be obtained, so that the comparison between the pressure and the rivet state can be conveniently researched, and the optimal punching control parameter can be obtained.
The servo motor is used as power, the servo motor drives the screw rod, the rotary motion of the servo motor is converted into linear motion, the punch moves forwards to punch the rivet, the rivet deforms towards the periphery, and the two components are riveted.
The utility model discloses specifically adopt following technical scheme:
a punch riveter with integral servo drive system, comprising: the device comprises a servo motor, a screw rod mechanism, a cylinder body, a pressure platform, a pressure sensor and a controller; the screw rod mechanism converts the rotation of the output shaft of the servo motor into the linear motion of the punch in the cylinder body; the pressure platform is positioned on a linear motion path of the punch; the pressure sensor is arranged at the bottom of the pressure platform; the servo motor and the pressure sensor are electrically connected with the controller respectively, and the pressure sensor is used as a trigger switch of the working state of the servo motor.
Preferably, the controller is a PLC.
Preferably, the PLC is connected to a touch screen controller.
Compared with the prior art, the utility model discloses and preferred scheme thereof has following beneficial effect:
(1) the servo driving system is completely closed, so that the whole riveting efficiency is greatly improved, the servo control can also ensure accurate riveting, and the riveting quality is greatly improved.
(2) According to the collected data, a change curve of the pressure along with the length of the rivet during riveting can be generated, and the riveting quality is best when the length of the rivet is conveniently observed.
(3) The servo drive is more convenient to maintain, and the processing environment is better.
When the rivet is punched, the closed-loop servo driving system controls riveting, so that the riveting efficiency and the punched rivet length are accurately controlled, the stable riveting and riveting quality is ensured, and a variation curve of pressure along with the rivet length can be generated. The product can be used for occasions requiring riveting precision and high-efficiency stable riveting.
Drawings
The invention will be described in further detail with reference to the following drawings and detailed description:
FIG. 1 is a schematic side view of the overall structure of the embodiment of the present invention;
FIG. 2 is a schematic view of a control flow of a working method according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of the control logic of an embodiment of the present invention;
in the figure: 1. a servo motor; 2. a screw mechanism; 3. a cylinder body; 4. a punch; 5. a first member; 6. a second member; 7. riveting; 8. a pressure sensor.
Detailed Description
In order to make the features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail as follows:
as shown in fig. 1 and fig. 3, the design scheme of the punching riveter with the complete servo drive system provided by this embodiment mainly includes: servo motor 1, screw mechanism 2, cylinder body 3, pressurized platform, pressure sensor 8 and controller.
Wherein, the screw rod mechanism 2 converts the rotation of the output shaft of the servo motor 1 into the linear motion of the punch 4 in the cylinder 3; the pressed platform is positioned on the linear motion path of the punch 4; the pressure sensor 8 is arranged at the bottom of the pressure platform; the servo motor 1 and the pressure sensor 8 are respectively electrically connected with the controller, and the pressure sensor 8 is used as a trigger switch of the working state of the servo motor.
In this embodiment, the controller is a PLC connected to the touch screen controller.
The servo motor 1 is used as power, during operation, the motor rotates and enables the rotation of the motor to be converted into linear motion of the punch 4 through the screw rod mechanism 2, the punch 4 in the cylinder body 3 conducts linear motion, during riveting, the rivet 7 is punched, the rivet 7 deforms towards the periphery, the first component 5 and the second component 6 are matched, and riveting is successful. During riveting, the pressure can be transmitted to an analog quantity conversion equipment instrument through the pressure sensor 8 to draw a change curve of the pressure along with the length of the rivet, then the servo motor 1 rotates reversely, the punch returns to the original point, and the riveting is finished.
Based on the above device structure, the present embodiment utilizes the constructed servo closed-loop feedback mechanism, and adopts the following control mechanism.
When the controller detects that the pressure information transmitted by the pressure sensor rises from a low value to a value exceeding a first threshold value, the servo motor is controlled to reduce from a first higher rotating speed to a second lower rotating speed.
When the servo motor runs at the second rotating speed for more than the preset time or the pressure information transmitted by the pressure sensor is detected to be greater than the second threshold value, the controller controls the servo motor to stop running and execute reverse rotation so as to guarantee the running safety of the equipment and ensure that the stamping distance meets the preset value.
In this embodiment, the preset time and the second threshold are determined according to a variation curve of the pressure at the time of riveting with the length of the rivet. The curve can be obtained by drawing a plurality of test experiments.
The touch screen controller collects the output value of the pressure sensor and can draw a numerical curve graph of the pressure changing along with time.
Based on the above control mechanism, as shown in fig. 2, in the solution designed in this embodiment, the PLC is controlled by the touch screen controller, and the punching speed and time can be set, so that the PLC controls the servo driver to make the servo motor move. At the beginning, when not starting the punching press rivet yet, PLC is controlling servo motor and is advancing fast, guarantees machining efficiency, and when contacting the rivet, produces pressure on the pressurized platform, pressure sensor experiences pressure and passes back PLC to the signal of telecommunication, and PLC then controls servo motor and switches into the state of slowly pressing the rivet to guarantee that slower speed can make the punching press rivet even, the punching press is stable. After the set punching length is reached, the riveting is successful, and the punching length can be controlled by a preset amount of time. At the moment, the PLC controls the servo motor to start returning, the servo motor rotates reversely, the electric cylinder moves backwards to the original point quickly, and the machining is finished.
In the use process, the length of the rivet to be punched and the riveting speed are set by the touch screen firstly, the rivet is started after the setting, then the PLC controls the servo motor to move, and the three processes are mainly adopted: before riveting, the punch moves quickly until the rivet is contacted; in the riveting process, the punch moves slowly to punch the rivet and rivet accessories; after riveting, the punch quickly returns to the original point to complete the riveting.
The present invention is not limited to the above preferred embodiments, and other various types of stamping riveting machines with complete servo driving system can be obtained by anyone who can derive the patent from the teaching of the present invention.
Claims (3)
1. A punch riveter with integral servo drive system, comprising: the device comprises a servo motor, a screw rod mechanism, a cylinder body, a pressure platform, a pressure sensor and a controller; the screw rod mechanism converts the rotation of the output shaft of the servo motor into the linear motion of the punch in the cylinder body; the pressure platform is positioned on a linear motion path of the punch; the pressure sensor is arranged at the bottom of the pressure platform; the servo motor and the pressure sensor are electrically connected with the controller respectively, and the pressure sensor is used as a trigger switch of the working state of the servo motor.
2. A punch riveter with integral servo drive system as set forth in claim 1 wherein: the controller is a PLC.
3. A punch riveter with integral servo drive system as set forth in claim 2 wherein: the PLC is connected with the touch screen controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032801.1U CN214290657U (en) | 2021-01-07 | 2021-01-07 | Punching riveting machine with complete servo driving system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120032801.1U CN214290657U (en) | 2021-01-07 | 2021-01-07 | Punching riveting machine with complete servo driving system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214290657U true CN214290657U (en) | 2021-09-28 |
Family
ID=77822961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120032801.1U Expired - Fee Related CN214290657U (en) | 2021-01-07 | 2021-01-07 | Punching riveting machine with complete servo driving system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214290657U (en) |
-
2021
- 2021-01-07 CN CN202120032801.1U patent/CN214290657U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210928 |