CN113909876B - Intelligent press-fitting screwing mechanism for steel wire thread sleeve - Google Patents
Intelligent press-fitting screwing mechanism for steel wire thread sleeve Download PDFInfo
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- CN113909876B CN113909876B CN202111371179.8A CN202111371179A CN113909876B CN 113909876 B CN113909876 B CN 113909876B CN 202111371179 A CN202111371179 A CN 202111371179A CN 113909876 B CN113909876 B CN 113909876B
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- wire thread
- thread insert
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- head assembly
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 60
- 239000010959 steel Substances 0.000 title claims abstract description 60
- 230000007246 mechanism Effects 0.000 title claims abstract description 34
- 238000006073 displacement reaction Methods 0.000 claims abstract description 23
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 238000003825 pressing Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 210000000078 claw Anatomy 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
- B23P19/06—Screw or nut setting or loosening machines
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automatic Assembly (AREA)
Abstract
The invention relates to an intelligent press-fitting screwing mechanism for a steel wire threaded sleeve, which mainly comprises a displacement sensor, a telescopic cylinder, a screwdriver head assembly, a screwdriver head sleeve, a servo screwing gun and a spline telescopic shaft; the rear end of the servo tightening gun is connected with the industrial robot, the front end of the servo tightening gun is connected with the batch head assembly through a spline telescopic shaft, and the spline telescopic shaft transmits the power of the servo tightening gun to the batch head assembly; the front end of the batch head assembly is fixedly connected with the batch head sleeve to position the batch head assembly; the telescopic cylinder is fixed on the spline telescopic shaft, and a pneumatic gripper at the front end of the telescopic cylinder is used for grabbing the head assembly; the automatic wire thread insert press-fitting device is arranged on an industrial robot and matched with the industrial robot to finish automatic, efficient and accurate press-fitting of the wire thread insert. The industrial robot is connected with the intelligent press-fitting screwing mechanism of the steel wire thread insert, and the industrial robot control system controls the intelligent press-fitting screwing mechanism of the steel wire thread insert to finish press-fitting of the steel wire thread insert by giving a control signal to the intelligent press-fitting screwing mechanism of the steel wire thread insert.
Description
Technical Field
The invention belongs to the technical field of screw sleeve press fitting, and particularly relates to an intelligent press fitting and screwing mechanism for a steel wire screw sleeve.
Background
With the rapid development of the fields of aerospace, mechanical manufacturing and the like in China, the requirements on the detachability and the safety of mechanical connection are continuously improved. Due to processing or assembly errors, the traditional threaded connection threads are unevenly stressed, so that the strength of the threaded connection is reduced. Particularly, the shearing resistance of the screw thread of the materials such as aluminum alloy, copper alloy and the like which are used in a large quantity at present is weak, and the strength and the fatigue life of the traditional screw thread connection are greatly reduced. The steel wire thread insert connection is a low-cost method capable of effectively enhancing the threaded connection strength and prolonging the service life. At present, the assembly of the steel wire thread insert is mostly carried out by directly pressing by manually applying a tightening device.
The existing steel wire thread insert is mainly installed manually, and the quality influence factors of the mode of manually installing the steel wire thread insert are more. In addition, the assembly process of the steel wire thread insert is a nonlinear process, the consistency and reliability of the assembly quality are difficult to ensure by a simple constant-speed or constant-torque method, even the phenomena of jump buckle, clamping stagnation and the like occur, and the urgent requirements of high efficiency, accuracy, fineness and the like of the installation of the steel wire thread insert cannot be met.
Disclosure of Invention
The invention provides an intelligent press-fitting and screwing mechanism for a steel wire thread insert, which can be matched with an industrial robot to finish automatic, efficient and accurate press-fitting of the steel wire thread insert.
In order to solve the technical problems, the invention provides an intelligent press-fitting and screwing mechanism for a steel wire thread insert, which is characterized in that: the device mainly comprises a displacement sensor 1, a telescopic cylinder 2, a screwdriver head assembly 4, a screwdriver head sleeve 5, a servo tightening gun 6 and a spline telescopic shaft 8; the rear end of the servo tightening gun 6 is connected with an industrial robot, the front end of the servo tightening gun is connected with the batch head assembly 4 through a spline telescopic shaft 8, and the spline telescopic shaft 8 transmits the power of the servo tightening gun 6 to the batch head assembly 4; the front end of the batch head assembly 4 is fixedly connected with a batch head sleeve 5 to position the batch head assembly 4; the telescopic cylinder 2 is fixed on the spline telescopic shaft 8, and a pneumatic gripper at the front end of the telescopic cylinder 2 is used for grabbing the head assembly 4; the displacement sensor 1 is fixed at one side of the front end of the servo tightening gun 6, the data sensing end of the displacement sensor 1 is connected with the servo tightening gun 6 to collect the displacement of the tightening mechanism in the servo tightening gun 6, and the signal transmitting end of the displacement sensor 1 is connected with one end of the screw sleeve depth switch 3; the other end of the screw sleeve depth switch 3 is connected with the servo tightening gun 6 and is used for controlling the conversion between the forward rotation and the reverse rotation of the servo tightening gun 6; the screwdriver head component 4 is used for placing a steel wire thread insert to be pressed.
The beneficial effects are that: the automatic wire thread insert press-fitting device is arranged on an industrial robot and matched with the industrial robot to finish automatic, efficient and accurate press-fitting of the wire thread insert. The industrial robot is connected with the intelligent press-fitting screwing mechanism of the steel wire thread insert, and the industrial robot control system controls the intelligent press-fitting screwing mechanism of the steel wire thread insert to finish press-fitting of the steel wire thread insert by giving a control signal to the intelligent press-fitting screwing mechanism of the steel wire thread insert.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic illustration of the connection of the cape head assembly to the batch head cover.
Detailed Description
To make the objects, contents and advantages of the present invention more apparent, the following detailed description of the specific embodiments of the present invention will be given.
The invention provides an intelligent press-fitting screwing mechanism for a steel wire threaded sleeve, which mainly comprises a displacement sensor 1, a telescopic cylinder 2, a threaded sleeve depth switch 3, a head assembly 4, a head sleeve 5, a servo screwing gun 6, a screwing shaft fixing seat 7, a spline telescopic shaft 8, an industrial camera 9 and a camera light source 10;
the displacement sensor 1, the telescopic cylinder 2, the screw sleeve depth switch 3, the servo tightening gun 6, the tightening shaft fixing seat 7, the spline telescopic shaft 8, the industrial camera 9 and the camera light source 10 form a rear end device, the rear end device is fixedly connected to the industrial robot, the head assembly 4 and the head sleeve 5 form a front end device, the quick-change type screw head device has a quick-change function, and the screw head assembly is fixedly connected to the rear end device through the telescopic cylinder 2 of the rear end device.
The servo tightening gun 6 is a power source for pressing the steel wire thread insert by the intelligent steel wire thread insert pressing and tightening mechanism, the rear end of the servo tightening gun is connected with the industrial robot, the front end of the servo tightening gun is connected with the batch head assembly 4 through the spline telescopic shaft 8, and the spline telescopic shaft 8 transmits the power of the servo tightening gun 6 to the batch head assembly 4; as shown in fig. 2, the front end of the batch head assembly 4 is fixed with the batch head sleeve 5 through a round hole of the batch head sleeve 5; the tightening shaft fixing seat 7 is arranged at the front end of the industrial robot and is used for fixing the telescopic cylinder 2, the servo tightening gun 6 and the industrial camera 9 on the industrial robot; the rear end of the telescopic cylinder 2 is connected with a compressed air pipe, the compressed air pipe is fixed on two sides of a spline telescopic shaft 8 through a tightening shaft fixing seat 7, and a pneumatic gripper at the front end is connected with the batch head assembly 4; the displacement sensor 1 is fixed on one side of the front end of the servo tightening gun 6, the data sensing end is connected with the servo tightening gun 6 to collect the displacement of the tightening mechanism in the servo tightening gun 6, and the signal transmitting end is connected with one end of the screw sleeve depth switch 3; the other end of the screw sleeve depth switch 3 is connected with the servo tightening gun 6 and is used for controlling the conversion between the forward rotation and the reverse rotation of the servo tightening gun 6; the industrial camera 9 is connected with a camera light source 10 and is fixed on one side of the servo tightening gun through a tightening shaft fixing seat 7.
The displacement sensor 1 detects the rotation depth of the tap wire screw by detecting the displacement of the tightening mechanism in the servo tightening gun 6, and transmits the collected rotation depth information to the screw depth switch 3 in a voltage signal manner.
The telescopic cylinder 2 is fixed on two sides of the spline telescopic shaft 8, is connected with a compressed air pipe, and an air claw on the telescopic cylinder 2 is used for grabbing the batch head assembly 4.
The screw sleeve depth switch 3 receives the voltage signal sent by the displacement sensor 1, and sends a reverse signal to the servo tightening gun 6 after the voltage signal reaches the appointed tightening voltage.
The head assembly 4 is connected with a head sleeve 5 to form a front end device. The screwdriver head component 4 adopts a magnetic force quick-change design, and is attracted with a grip of the telescopic cylinder 2 through magnetic force, and the spline telescopic shaft 8 penetrates through a central hole of the screwdriver head component 4 to convert power into torque for press-fitting the steel wire thread insert; the front end of the head assembly 4 is of a tubular structure with a middle through, the front end tubular structure of the head assembly 4 is provided with different diameters aiming at steel wire threaded sleeves of different types, one side of the front end of the head assembly 4 is provided with a gap, and the steel wire threaded sleeve to be pressed enters the front end of the head assembly 4 through the gap.
The head sleeve 5 is connected with the head assembly 4 and forms a front end device with the head assembly 4, the head sleeve 5 is provided with two positioning buckles and a positioning bulge, and the front end device can be positioned and stored on a tool for placing the front end device, so that the telescopic cylinder 2 can accurately position when grabbing the front end device.
The servo tightening gun 6 is a power source for the intelligent press-fitting tightening mechanism of the steel wire thread sleeve to press-fit the steel wire thread sleeve, the rear end of the servo tightening gun is connected with the industrial robot, and the front end of the servo tightening gun is connected with the screwdriver head assembly 4 through the spline telescopic shaft 8.
The tightening shaft fixing seat 7 is arranged at the front end of the industrial robot and is used for fixing the telescopic cylinder 2, the servo tightening gun 6 and the industrial camera 9 on the industrial robot.
The spline telescopic shaft 8 is used for transmitting power of the servo tightening gun 6 to the steel wire threaded sleeve in the batch head assembly 4 through the servo tightening gun 6 and the batch head assembly 4, and in addition, the spline telescopic shaft 8 is also used for matching with the telescopic action of the tightening assembly.
The industrial camera 9 is used for positioning the press-fitting steel wire screw sleeve hole.
The camera light source 10 provides a light source for the industrial camera 9.
Working principle: when the steel wire thread insert is pressed, the servo tightening gun 6 rotates positively to control the screwdriver head component 4 to start pressing the steel wire thread insert; when receiving the reversing signal of the screw sleeve depth switch 3, the servo tightening gun 6 starts reversing, and the screwdriver head assembly 4 is controlled to withdraw from the wire screw sleeve.
The invention relates to an intelligent press-fitting and screwing mechanism for a steel wire thread insert, which comprises the following steps:
1) The industrial robot control system receives the model of the steel wire thread insert to be installed and determines a head assembly required by screwing the steel wire thread insert and required torque;
2) The industrial robot runs above the selected front end device, and as the head assembly 4 adopts a magnetic force quick-change design, the air claw on the telescopic cylinder 2 grabs the front end device consisting of the head assembly 4 and the head sleeve 5;
3) The industrial robot runs near a steel wire thread insert feeding mechanism, and the feeding mechanism enters the steel wire thread insert to be pressed into the front end of the head assembly 4 through the opening;
4) The industrial robot runs near the part of the steel wire thread insert to be pressed, the camera light source 10 works to provide a light source for the industrial camera 9, the industrial camera 9 photographs the part and feeds back the part to the industrial robot control system to determine the position where the steel wire thread insert needs to be pressed;
5) The industrial robot runs to the position right above the determined steel wire thread insert to be pressed and runs downwards to the front end of the screwdriver head component 4 and the hole of the pressed steel wire thread insert;
6) The servo tightening gun 6 rotates positively, the screwdriver head assembly 4 is controlled to start to press the steel wire screw sleeve, and the screwdriver head assembly 4 converts power transmitted by the spline telescopic shaft 8 into torque until the steel wire screw sleeve is pressed in place. Meanwhile, the displacement sensor 1 transmits the acquired information of the rotation depth of the steel wire thread insert in place to the thread insert depth switch 3 in a voltage signal mode;
7) After receiving the in-place tightening voltage of the steel wire thread sleeve sent by the displacement sensor 1, the thread sleeve depth switch 3 sends a reversing signal to the servo tightening gun 6, the servo tightening gun 6 starts reversing, and the screwdriver head assembly 4 is controlled to withdraw from the steel wire thread sleeve.
In the step 6), when the steel wire screw sleeve is pressed, the torque in the process of pressing the steel wire screw sleeve can be obtained by monitoring the power output of the servo tightening gun 6, so that the real-time feedback of the tightening force in the process of pressing the steel wire screw sleeve is realized. Therefore, whether the quality of the steel wire thread insert and the wire hole of the press-mounting steel wire thread insert product is good or bad can be detected, if any one of the steel wire thread insert and the wire hole is bad in quality, the torque in the screwing process is larger than the normal torque or smaller than the normal torque, whether the steel wire thread insert is larger than or smaller than the normal torque, the quality of the product is proved to be problematic, and the equipment can automatically and timely stop the press-mounting of the intelligent press-mounting screwing mechanism of the steel wire thread insert to the steel wire thread insert, so that secondary damage to the product is avoided.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present invention, and such modifications and variations should also be regarded as being within the scope of the invention.
Claims (10)
1. The utility model provides a steel wire swivel nut intelligence pressure equipment screw up mechanism which characterized in that: the device comprises a displacement sensor, a telescopic cylinder, a screwdriver head assembly, a screwdriver head sleeve, a servo tightening gun and a spline telescopic shaft; the rear end of the servo tightening gun is connected with the industrial robot, the front end of the servo tightening gun is connected with the batch head assembly through a spline telescopic shaft, and the spline telescopic shaft transmits the power of the servo tightening gun to the batch head assembly; the front end of the batch head assembly is fixedly connected with the batch head sleeve to position the batch head assembly; the telescopic cylinder is fixed on the spline telescopic shaft, and a pneumatic gripper at the front end of the telescopic cylinder is used for grabbing the head assembly; the displacement sensor is fixed at one side of the front end of the servo tightening gun, the data sensing end of the displacement sensor is connected with the servo tightening gun to collect the displacement of the tightening mechanism in the servo tightening gun, and the signal transmitting end of the displacement sensor is connected with one end of the screw sleeve depth switch; the other end of the screw sleeve depth switch is connected with the servo tightening gun and is used for controlling the conversion between forward rotation and reverse rotation of the servo tightening gun; the screwdriver head component is used for placing the steel wire thread insert to be pressed.
2. The intelligent press-fit tightening mechanism of the wire thread insert according to claim 1, wherein: the rear end of the telescopic cylinder is connected with a compressed air pipe.
3. The intelligent press-fit tightening mechanism of the wire thread insert according to claim 1, wherein: the industrial camera is connected with the camera light source and is fixed on one side of the servo tightening gun through the tightening shaft fixing seat.
4. The intelligent press-fit tightening mechanism for the wire thread insert according to claim 3, wherein: the tightening shaft fixing seat is arranged at the front end of the industrial robot and used for fixing the telescopic cylinder, the servo tightening gun and the industrial camera on the industrial robot.
5. The intelligent press-fit tightening mechanism of the wire thread insert according to claim 1, wherein: the displacement sensor detects the rotation depth of the tapping screw sleeve by detecting the displacement of a tightening mechanism in the servo tightening gun, and transmits the collected rotation depth information to the screw sleeve depth switch in a voltage signal mode.
6. The intelligent press-fit tightening mechanism of the wire thread insert according to claim 1, wherein: the swivel nut depth switch receives the voltage signal sent by the displacement sensor, and sends a reverse signal to the servo tightening gun after the voltage signal reaches the appointed tightening voltage.
7. The intelligent press-fit tightening mechanism of the wire thread insert according to claim 1, wherein: the screwdriver head component is attracted with the gripper of the telescopic cylinder through magnetic force.
8. The intelligent press-fit tightening mechanism of the wire thread insert according to claim 1, wherein: the front end of the screwdriver head component is of a hollow tubular structure.
9. The intelligent press-fit tightening mechanism of the wire thread insert according to claim 1, wherein: one side of the front end of the screwdriver head component is provided with a notch, and a steel wire thread insert to be pressed enters the front end of the screwdriver head component through the notch.
10. The intelligent press-fit tightening mechanism of the wire thread insert according to claim 1, wherein: the batch head sleeve is provided with a positioning buckle and a positioning bulge, so that the batch head assembly can be positioned and stored on a corresponding tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371179.8A CN113909876B (en) | 2021-11-18 | 2021-11-18 | Intelligent press-fitting screwing mechanism for steel wire thread sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111371179.8A CN113909876B (en) | 2021-11-18 | 2021-11-18 | Intelligent press-fitting screwing mechanism for steel wire thread sleeve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113909876A CN113909876A (en) | 2022-01-11 |
| CN113909876B true CN113909876B (en) | 2023-11-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111371179.8A Active CN113909876B (en) | 2021-11-18 | 2021-11-18 | Intelligent press-fitting screwing mechanism for steel wire thread sleeve |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1084799A2 (en) * | 1999-09-15 | 2001-03-21 | Emhart Inc. | Extraction and adjustment tool for tangless inserts |
| CN104227394A (en) * | 2014-08-26 | 2014-12-24 | 江阴博衍机械设备有限公司 | Automatic tightening device of steel wire thread insert |
| CN211708589U (en) * | 2019-12-05 | 2020-10-20 | 精进电动科技(菏泽)有限公司 | Equipment for installing steel wire thread insert |
| CN112658668A (en) * | 2020-12-31 | 2021-04-16 | 苏州博思特装配自动化科技有限公司 | Automatic locking and punching assembly equipment for steel wire thread insert |
| CN214641631U (en) * | 2020-12-31 | 2021-11-09 | 苏州博思特装配自动化科技有限公司 | Locking module for automatic assembly of steel wire thread insert |
-
2021
- 2021-11-18 CN CN202111371179.8A patent/CN113909876B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1084799A2 (en) * | 1999-09-15 | 2001-03-21 | Emhart Inc. | Extraction and adjustment tool for tangless inserts |
| CN104227394A (en) * | 2014-08-26 | 2014-12-24 | 江阴博衍机械设备有限公司 | Automatic tightening device of steel wire thread insert |
| CN211708589U (en) * | 2019-12-05 | 2020-10-20 | 精进电动科技(菏泽)有限公司 | Equipment for installing steel wire thread insert |
| CN112658668A (en) * | 2020-12-31 | 2021-04-16 | 苏州博思特装配自动化科技有限公司 | Automatic locking and punching assembly equipment for steel wire thread insert |
| CN214641631U (en) * | 2020-12-31 | 2021-11-09 | 苏州博思特装配自动化科技有限公司 | Locking module for automatic assembly of steel wire thread insert |
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| Publication number | Publication date |
|---|---|
| CN113909876A (en) | 2022-01-11 |
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