CN111151697A - Electric riveting tool - Google Patents
Electric riveting tool Download PDFInfo
- Publication number
- CN111151697A CN111151697A CN202010067923.4A CN202010067923A CN111151697A CN 111151697 A CN111151697 A CN 111151697A CN 202010067923 A CN202010067923 A CN 202010067923A CN 111151697 A CN111151697 A CN 111151697A
- Authority
- CN
- China
- Prior art keywords
- screw rod
- tension sensor
- circuit
- riveting
- clamping jaw
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000002955 isolation Methods 0.000 claims abstract description 4
- 238000012544 monitoring process Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 10
- 238000009434 installation Methods 0.000 description 8
- 210000000078 claw Anatomy 0.000 description 5
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/105—Portable riveters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/16—Drives for riveting machines; Transmission means therefor
- B21J15/26—Drives for riveting machines; Transmission means therefor operated by rotary drive, e.g. by electric motor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J15/00—Riveting
- B21J15/10—Riveting machines
- B21J15/28—Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Insertion Pins And Rivets (AREA)
Abstract
The invention discloses an electric riveting tool. The gun head assembly comprises a clamping jaw and an anvil, the anvil and a gun body sleeve are fixedly arranged, and the clamping jaw is driven by the driving motor to stretch and retract to complete riveting; the driving motor drives the screw rod nut sleeve to move through the screw rod main shaft to realize stretching, the rear end of the clamping jaw is fixedly connected with the front end of the tension sensor, and the other end of the tension sensor is fixedly connected with the screw rod nut sleeve; the clamping jaw, the tension sensor, the screw rod nut sleeve and the screw rod main shaft are on the same axial lead; the control module comprises a power circuit, a tension sensor acquisition circuit, a motor drive circuit and an MCU system circuit; the motor driving circuit and the MCU system circuit are arranged in an isolation mode. The invention adopts a direct tension sensor structure, has small integral tool structure, accurate and instant tension monitoring, has adjustable tension of the electric tool, more reasonable circuit arrangement and is suitable for mounting small-sized short-tail pull rivets.
Description
Technical Field
The invention belongs to the technical field of riveting fastening, particularly belongs to the technical field of design and production of handheld cordless electric tools, and particularly relates to an electric riveting tool with adjustable tension.
Background
The most common riveting application is the single-sided riveting technique, and the implementation tools include manual riveting tools, pneumatic riveting tools, alternating current electric riveting tools and rechargeable electric riveting tools.
When a conventional hydraulic riveting tool is used for installing a short-tail rivet with a small specification, the required riveting force is small, the oil pressure fluctuation of the hydraulic riveting tool is large, the riveting force is uncontrollable, and the tail teeth are broken or the rivet is not installed in place, so that the installation quality of the rivet is defective. Meanwhile, when the small-specification short-tail rivet is installed, a hydraulic pump station is needed to be matched with a hydraulic riveting tool for use, so that the installation cost is increased, and the operation and the use are inconvenient and flexible.
The existing small-sized electric riveting tool cannot well control the riveting tension in the riveting process and cannot adjust the applicable riveting tension aiming at different rivets, so that the riveting quality and efficiency are influenced; meanwhile, the riveting tool is often controlled by a manual stroke or a mechanical stroke control mechanism, so that the timely stroke of the clamping jaw cannot be accurately controlled during riveting operation, and the riveting quality cannot be effectively managed.
Disclosure of Invention
The invention aims to solve the problems of poor rivet installation quality, inconvenience in installation and low installation efficiency in the process of installing small-specification short-tail rivets by using a riveting tool.
The invention is realized by the following technical scheme:
electronic riveting tool, riveting tool are used for carrying out the single face riveting operation to the short tail rivet, including rifle head subassembly, driving motor and the battery that constitutes hand-held type rifle body riveting tool, its characterized in that: the gun head assembly comprises a clamping jaw and an anvil, the anvil and the gun body sleeve are fixedly arranged, and the clamping jaw is driven by a driving motor to stretch and retract to complete riveting; the driving motor drives the screw rod nut sleeve to move through the screw rod main shaft to realize stretching, the rear end of the clamping jaw is fixedly connected with the front end of the tension sensor, and the other end of the tension sensor is fixedly connected with the screw rod nut sleeve.
The jack catch, the tension sensor, the screw rod nut sleeve and the screw rod main shaft move in a telescopic mode on the same axis.
The tension sensor is in signal connection with the control module through a connecting wire, and the driving motor is in control connection with the control module.
The control module comprises a power circuit, a tension sensor acquisition circuit, a motor drive circuit and an MCU system circuit; the motor driving circuit and the MCU system circuit are arranged in an isolation mode.
Because the current of the motor is larger in the on-load running process of the motor, the driving circuit of the motor is isolated from the MCU system circuit, and the signal interference of the motor to the MCU circuit in the running process is prevented.
The output signal of the tension sensor is a voltage signal, an ADC (analog to digital converter) channel of the MCU system circuit collects the pressure signal of the pressure sensor, and the tension value of the riveter is calculated through corresponding conversion. In the process of moving the electric riveter, in order to ensure the accuracy of control, the motor brakes when reaching a preset condition. And the motor rotates reversely after braking for a certain time. The braking condition of the motor is that the gun switch is loosened, the motor reaches the Hall element, and the riveted pressure value reaches the set pressure value.
The working process of the riveting tool comprises the following steps: and pressing a gun switch button, positively rotating the motor to output a pulling force value, loosening the button or enabling the pressure value to reach a set pressure value or reach the stroke motor brake of the riveter for 0.3S, and then reversely rotating the motor to stop the single machine when the single machine reaches the initial position.
Before using riveting tool, adorn at electronic riveting tool base with the lithium cell, then give according to the rivet parameter of required installation and set up the pulling force value. When the rivet is installed, a switch button of a riveting tool is pressed, a motor rotates and drives a gear on a lead screw main shaft to perform speed reduction transmission through the motor, the lead screw main shaft rotates to drive a lead screw nut sleeve to stretch and move, the lead screw nut sleeve is connected with a clamping jaw through a tension sensor, the clamping jaw is meshed with the tail of the rivet and pulls the rivet to move backwards, and an anvil extrudes a lantern ring forwards relative to the clamping jaw to deform. In the riveting installation process, when the tension sensor detects that the tension value reaches the preset tension value, the motor is controlled to brake and rotate reversely, and short-tail pulling rivet installation is completed.
The invention has the following beneficial effects: the invention adopts a direct tension sensor structure, has small integral tool structure, accurate and instant tension monitoring, has adjustable tension and is suitable for mounting small-sized short-tail pull rivets in riveting. Conventional electric riveting tools do not have a function of adjusting the riveting force, and the tail teeth of the rivet are damaged in the process of installing the rivet, so that the rivet cannot be correctly installed in place.
Drawings
FIG. 1 is a schematic view of the overall structure of the riveter of the present invention;
FIG. 2 is a schematic cross-sectional view of the gun body of the present invention;
fig. 3 is a control schematic block diagram of the present invention.
In the figure, 1 is a claw, 2 is an anvil, 3 is a gun body sleeve, 4 is an outer sleeve, 5 is a tension sensor, 6 is a screw rod nut sleeve, 7 is a screw rod main shaft, 8 is a connecting wire, 9 is a gun head assembly, 10 is a gun body, 11 is a gun body rear cover, 12 is a liquid crystal display screen, 13 is a setting button, 14 is a storage battery, and 15 is a switch button.
Detailed Description
The present invention is further described below in conjunction with the following detailed description, which is intended to further illustrate the principles of the invention and is not intended to limit the invention in any way, but is equivalent or analogous to the present invention without departing from its scope.
With reference to the attached drawings.
The electric riveting tool is used for carrying out single-side riveting operation on a short-tail rivet and comprises a gun head assembly 9, a driving motor and a storage battery 14, wherein the gun head assembly 9 forms the handheld gun body riveting tool, the gun head assembly 9 comprises a clamping jaw 1 and an anvil 2, the anvil 2 and a gun body sleeve 3 are fixedly arranged, and the clamping jaw 1 is driven by the driving motor to stretch and retract to complete riveting; the driving motor drives the screw rod nut sleeve 6 to move through the screw rod main shaft 7 to realize stretching, the rear end of the clamping jaw 1 is fixedly connected with the front end of the tension sensor 5, and the other end of the tension sensor 5 is fixedly connected with the screw rod nut sleeve 6.
The invention arranges the jack catch 1, the tension sensor 5, the screw rod nut sleeve 6 and the screw rod main shaft 7 on the same axial line for telescopic movement.
The tension sensor 5 is in signal connection with the control module through a connecting wire 8, and the driving motor is in control connection with the control module.
The control module comprises a power circuit, a tension sensor acquisition circuit, a motor drive circuit and an MCU system circuit; the motor driving circuit and the MCU system circuit are arranged in an isolation mode.
As shown in fig. 1 and 2, the gun head assembly 9 of the present invention is composed of a jaw 1, an anvil 2, an anvil sleeve 3, an outer sleeve 4, a tension sensor 5, and a lead screw-nut sleeve 6. When the riveter works, firstly, the riveting tension is set through the setting button 13, the riveting forces required by rivets of different specifications and models are different, and meanwhile, the set value is displayed in real time on the liquid crystal display 12; inserting the claw 1 into the tail part of the rivet to ensure that a pull groove in the claw 1 is occluded with a pull groove at the tail part of the rivet; the riveting gun switch button 15 is pressed, the motor starts to operate, the lead screw main shaft 7 is driven to rotate after speed reduction, the lead screw main shaft 7 rotates in the lead screw nut sleeve 6 to drive the lead screw nut sleeve 6 to move backwards, and rightward pulling force is generated; as shown in the figure, the lead screw spindle 7 is connected with the tension sensor 5 through the lead screw nut sleeve 6, and the other end of the tension sensor 5 is connected with the clamping jaw 1. During the movement, when the jaws 1 engage the rivet tail teeth and move to the right, the anvil 2 presses against the collar surface by the movement of the anvil 2 against the collar outer edge in the opposite direction relative to the jaws 1.
As shown in fig. 3, in the process of squeezing the lantern ring, the force required by the anvil 2 to squeeze the lantern ring and make it reach a certain deformation is the riveting force, and the riveting force is equal to the magnitude of the pulling force generated by the lead screw spindle 7. The size of the riveting force changes in real time and gradually rises, the tension sensor 5 is used for reading the tension value of the tension generated by the lead screw spindle 7 in the riveting process, and the tension value is fed back to a PLC program through a sensor signal connecting line 8 for data judgment: when the detected tension value is smaller than the initial preset value, the motor keeps the original running state; when the detected tension value reaches the range of +/-0.5% of the initial preset value, the running direction of the motor is changed immediately, the lead screw main shaft 7 drives the lead screw nut sleeve 6 to move leftwards, so that the claw 1 pushes the rivet to be separated from the claw head, and the anvil 2 is separated from the sleeve ring, so that the rivet installation is completed.
Claims (4)
1. The utility model provides an electronic riveting tool, riveting tool are used for carrying out the single face riveting operation to the short tail rivet, including rifle head subassembly, driving motor and the battery that constitutes hand-held type rifle body riveting tool, its characterized in that: the gun head assembly comprises a clamping jaw and an anvil, the anvil and the gun body sleeve are fixedly arranged, and the clamping jaw is driven by a driving motor to stretch and retract to complete riveting; the driving motor drives the screw rod nut sleeve to move through the screw rod main shaft to realize stretching, the rear end of the clamping jaw is fixedly connected with the front end of the tension sensor, and the other end of the tension sensor is fixedly connected with the screw rod nut sleeve.
2. The power riveting tool of claim 1, wherein: the jack catch, the tension sensor, the screw rod nut sleeve and the screw rod main shaft move in a telescopic mode on the same axis.
3. The power riveting tool according to claim 1 or 2, wherein: the tension sensor is in signal connection with the control module through a connecting wire, and the driving motor is in control connection with the control module.
4. The power riveting tool of claim 3, wherein: the control module comprises a power circuit, a tension sensor acquisition circuit, a motor drive circuit and an MCU system circuit; the motor driving circuit and the MCU system circuit are arranged in an isolation mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067923.4A CN111151697A (en) | 2020-01-20 | 2020-01-20 | Electric riveting tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010067923.4A CN111151697A (en) | 2020-01-20 | 2020-01-20 | Electric riveting tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111151697A true CN111151697A (en) | 2020-05-15 |
Family
ID=70564763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010067923.4A Pending CN111151697A (en) | 2020-01-20 | 2020-01-20 | Electric riveting tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111151697A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687367A (en) * | 2020-05-26 | 2020-09-22 | 西安理工大学 | Single-side nail pulling assembly device and assembly method thereof |
| WO2023240997A1 (en) * | 2022-06-15 | 2023-12-21 | 眉山中车紧固件科技有限公司 | Riveting control method for high-strength ring groove rivet |
| WO2023240996A1 (en) * | 2022-06-15 | 2023-12-21 | 眉山中车紧固件科技有限公司 | Riveting tool for high-strength ring groove rivet |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203887143U (en) * | 2014-05-17 | 2014-10-22 | 高良 | Electric riveter |
| CN105382172A (en) * | 2015-12-15 | 2016-03-09 | 眉山南车紧固件科技有限公司 | Intelligent riveting monitoring method and system |
| CN205393439U (en) * | 2016-03-04 | 2016-07-27 | 刘建仓 | Electronic riveting gun |
| CN205798316U (en) * | 2016-05-25 | 2016-12-14 | 江苏东成机电工具有限公司 | Electric blind-riveting tool gun |
| DE102017223713A1 (en) * | 2017-12-22 | 2019-06-27 | Robert Bosch Gmbh | Method and device for setting blind rivets or blind rivet nuts |
| CN212042509U (en) * | 2020-01-20 | 2020-12-01 | 眉山中车紧固件科技有限公司 | Electric riveting tool |
-
2020
- 2020-01-20 CN CN202010067923.4A patent/CN111151697A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203887143U (en) * | 2014-05-17 | 2014-10-22 | 高良 | Electric riveter |
| CN105382172A (en) * | 2015-12-15 | 2016-03-09 | 眉山南车紧固件科技有限公司 | Intelligent riveting monitoring method and system |
| CN205393439U (en) * | 2016-03-04 | 2016-07-27 | 刘建仓 | Electronic riveting gun |
| CN205798316U (en) * | 2016-05-25 | 2016-12-14 | 江苏东成机电工具有限公司 | Electric blind-riveting tool gun |
| DE102017223713A1 (en) * | 2017-12-22 | 2019-06-27 | Robert Bosch Gmbh | Method and device for setting blind rivets or blind rivet nuts |
| CN212042509U (en) * | 2020-01-20 | 2020-12-01 | 眉山中车紧固件科技有限公司 | Electric riveting tool |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111687367A (en) * | 2020-05-26 | 2020-09-22 | 西安理工大学 | Single-side nail pulling assembly device and assembly method thereof |
| WO2023240997A1 (en) * | 2022-06-15 | 2023-12-21 | 眉山中车紧固件科技有限公司 | Riveting control method for high-strength ring groove rivet |
| WO2023240996A1 (en) * | 2022-06-15 | 2023-12-21 | 眉山中车紧固件科技有限公司 | Riveting tool for high-strength ring groove rivet |
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