CN113579708A - Device for mounting bolts - Google Patents
Device for mounting bolts Download PDFInfo
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- CN113579708A CN113579708A CN202010361084.7A CN202010361084A CN113579708A CN 113579708 A CN113579708 A CN 113579708A CN 202010361084 A CN202010361084 A CN 202010361084A CN 113579708 A CN113579708 A CN 113579708A
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- mounting
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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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- Mechanical Engineering (AREA)
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Abstract
The invention discloses a device for mounting a bolt, which comprises: support assembly, fixed subassembly and installation mechanism. The supporting component is used for placing a workpiece to be installed, and the fixing component is used for fixing the workpiece to be installed on the supporting component. The mounting mechanism comprises a vertically extending mounting rod, a moving assembly and a torque gun, one end of the moving assembly is connected to the mounting rod in a vertically sliding mode, the torque gun is fixed to the other end of the moving assembly, and the torque gun is located above the supporting assembly. The workpiece to be installed with the bolt can be fixed on the supporting component through the supporting component, the fixing component and the installing mechanism, the bolt is installed, the working strength of operators is reduced, the assembling efficiency is improved, and the installing quality is improved.
Description
Technical Field
The present invention relates to a device for mounting a bolt.
Background
The bolt is used as a common connecting piece and widely applied to various mechanical equipment. The device that is often used for the construction bolt includes spanner, electric screwdriver etc. and these instruments all need artifical manual assistance-operation, and the installation is troublesome and laboursome, and is inefficient, and can not satisfy the installation demand of high accuracy. For example, when a sensor is mounted on a nylon pipe for a vehicle, since it is required to be firmly fixed by tightening a bolt, the tightening torque of the bolt is controlled to a set torque value when the bolt is tightened. Due to the fact that the nylon pipe fitting is various in types and large in demand, the work of screwing the bolts of the nylon pipe is numerous and huge, and the production beat of a production unit is tired. The simple installation device has requirements on the operation skill of an operator, so that the working strength of the operator is high, the operator is easy to fatigue, the risk that the tightening force does not reach the standard exists, and defective products flow into a host factory.
Disclosure of Invention
The invention aims to overcome the defects of low efficiency and uncontrollable installation quality of spiral installation in the prior art and provides a device for installing a bolt.
The invention solves the technical problems through the following technical scheme:
a device for mounting a bolt, characterized in that it comprises:
the supporting assembly is used for placing a workpiece to be installed;
the fixing assembly is used for fixing a workpiece to be installed on the supporting assembly;
the mounting mechanism comprises a vertically extending mounting rod, a moving assembly and a torque gun, one end of the moving assembly is connected with the mounting rod in a vertically sliding mode, the torque gun is fixed to the other end of the moving assembly, and the torque gun is located above the supporting assembly.
Preferably, the means for mounting a bolt further comprises a controller, the torque gun being in communicative connection with the controller.
Preferably, the support assembly comprises a support table and a profile block, the profile block is detachably connected to the support table, and a profile groove for placing a workpiece to be installed is formed in the profile block.
Preferably, the supporting table is provided with a mounting groove, a positioning pin is arranged on the bottom surface of the mounting groove, a positioning groove is arranged at the bottom of the profiling block, and the positioning pin and the positioning groove are matched with each other.
Preferably, the number of the positioning pins is multiple, the number of the positioning grooves is multiple, and the plurality of positioning pins and the plurality of positioning grooves are matched with each other to define the installation direction of the contour block.
Preferably, one side of the mounting groove is provided with a locking device, and the locking device is used for locking the profiling block in the mounting groove.
Preferably, the fixing component comprises a fixing frame, a laser sensor and a clamping device, the laser sensor and the clamping device are fixed on the fixing frame, the laser sensor is used for detecting whether a workpiece to be installed is located on the supporting component, the clamping device is used for pressing the workpiece to be installed on the supporting component, and the laser sensor and the clamping device are in communication connection with the controller.
Preferably, the clamping device comprises an air cylinder, a connecting rod and a pressing rod, the air cylinder is fixed on the fixing frame, one end of the connecting rod is hinged to the middle position of the pressing rod, the other end of the connecting rod is hinged to the fixing frame, a piston rod of the air cylinder is hinged to one end of the pressing rod, and the other end of the pressing rod can press a workpiece to be installed on the supporting assembly.
Preferably, the clamping device further comprises an elastic pad, the elastic pad is fixed at one end of the pressing rod, and the elastic pad can be pressed between the pressing rod and a workpiece to be installed.
Preferably, the motion assembly comprises a linear bearing mounted between the motion assembly and the mounting rod, the motion assembly being rotatable about the mounting rod.
Preferably, the mounting mechanism further comprises a spring balancer fixed to the mounting rod, and the telescopic member of the spring balancer is fixed to the moving member and pulls the moving member upward.
Preferably, an upper stopper is fixed on the mounting rod, the upper stopper is located above the moving assembly, and the upper stopper is in communication connection with the controller.
Preferably, a lower limiting stopper is fixed on the mounting rod and located below the moving assembly, and the lower limiting stopper is in communication connection with the controller.
Preferably, the moving assembly includes a fixed block and a moving member, the linear bearing is installed between the fixed block and the installation rod, a slide way extending along the horizontal direction is provided in the fixed block, the moving member is slidably connected to the slide way, and the torque gun is fixed to one end of the moving member.
Preferably, the device for installing the bolt further comprises a code scanning assembly, wherein the code scanning assembly comprises a code scanning support rod, a connecting block and a code scanner, the code scanner is fixed on the support rod through the connecting block, and the code scanner is in communication connection with the controller.
Preferably, the code scanning support rod is provided with an oblong hole extending in the vertical direction, and the connecting block is connected to the oblong hole through a bolt.
Preferably, the connecting block is provided with a connecting hole and an arc-shaped hole, the connecting hole is located at the circle center of the arc-shaped hole, and the code scanner is connected to the connecting hole and the arc-shaped hole through a bolt.
Preferably, the device for installing the bolt further comprises a defective box for placing defective products and a grating sensor, the grating sensor is installed at an inlet of the defective box, and the grating sensor is in communication connection with the controller.
On the basis of the common knowledge in the field, the above preferred conditions can be combined randomly to obtain the preferred embodiments of the invention.
The positive progress effects of the invention are as follows: the workpiece to be installed with the bolt can be fixed on the supporting component through the supporting component, the fixing component and the installing mechanism, the bolt is installed, the working strength of operators is reduced, the assembling efficiency is improved, and the installing quality is improved.
Drawings
Fig. 1 is a perspective view of a device for mounting a bolt according to a preferred embodiment of the present invention in a single position.
Fig. 2 is a perspective view of the device for mounting a bolt according to the preferred embodiment of the present invention in another position.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Fig. 4 is an enlarged view of a portion B in fig. 1.
Fig. 5 is an enlarged view of a portion C in fig. 1.
Description of reference numerals:
Support table 110
Profile-block 120
Securing assembly 200
Fixing frame 210
Clamping device 230
Connecting rod 232
Pressing lever 233
Fixing block 321
Torque gun 330
Spring balancer 340
Sweep a yard bracing piece 410
Slotted hole 411
Connecting hole 421
Arc-shaped hole 422
Detailed Description
The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Fig. 1 and 2 show an apparatus for mounting a bolt, comprising: a support assembly 100, a securing assembly 200, and a mounting mechanism 300. The support assembly 100 is used to place a workpiece to be mounted, and the fixing assembly 200 is used to fix the workpiece to be mounted to the support assembly 100. The mounting mechanism 300 includes a vertically extending mounting rod 310, a moving assembly 320, one end of the moving assembly 320 being slidably connected up and down to the mounting rod 310, and a torque gun 330 secured to the other end of the moving assembly 320, the torque gun 330 being located above the support assembly 100.
In this embodiment, the present apparatus is mainly used for mounting a bolt for connecting the sensor 500 and the control pipe 600 for a vehicle. According to the installation requirements, the connection between the sensor 500 and the pipe 600 needs to be firm and reliable, so that the sensor 500 and the pipe 600 cannot loosen in the use process, and the damage to a workpiece caused by overlarge tightening force of a bolt is avoided. When the bolt needs to be installed, an operator aligns the pipe 600 to be installed and the sensor 500 and places the aligned pipe 600 and the sensor 500 on the support assembly 100, and then the fixing assembly 200 fixes the sensor 500 on the pipe 600, so that the problem that the installation fails due to the displacement of the sensor 500 or the pipe 600 in the bolt installation process is avoided. After the fixing is completed, the nut of the bolt is installed in the gun head of the torque gun 330, the torque gun 330 is pulled downwards, the bolt is aligned with the threaded hole on the sensor 500, and the torque gun 330 is started to install the bolt in the threaded hole. When the tightening torque reaches the set torque value, the torque gun 330 stops rotating. After the bolt installation is completed, the torque gun 330 is lifted, the fixing assembly 200 is loosened, and then the pipe 600 is removed from the support assembly 100. In order to accurately control the tightening torque value, the torque gun 330 employed in the present embodiment can accurately set the torque value and determine some failures in the tightening process, such as wire slippage, skewing of the tightening, and the like. The shell of the torque gun 330 is provided with an indicator light which displays green when the torque gun is correctly screwed to reach the set torque; when a fault occurs in the screwing process, the indicator lamp displays red.
To enable intelligent control, the apparatus for mounting bolts further includes a controller (not shown) to which the torque gun 330 is communicatively connected. The controller can control the start and stop of the torque gun 330 according to the feedback signal. For example, the torque gun 330 has a contact sensor that can send a signal to control the torque gun 330 to activate when a bolt mounted on the torque gun 330 is pressed into a threaded hole. When the operating torque of the torque gun 330 reaches a set value, the controller can control the torque gun 330 to stop.
In practical applications, the shape of the workpiece for mounting the bolt is varied, and in order to make the workpiece better fit with the support assembly 100, as shown in fig. 3, the support assembly 100 includes a support table 110 and a profile block 120, the profile block 120 is detachably connected to the support table 110, and the profile block 120 has a profile groove 121 for placing the workpiece to be mounted thereon. In this embodiment, the pipe 600 and the sensor 500 are placed in the contour groove 121, which can position the sensor 500 and the pipe 600.
In order to improve the versatility of the supporting assembly 100, the supporting base 110 has a mounting groove 111, a positioning pin (not shown) is disposed on the bottom surface of the mounting groove 111, and a positioning groove (not shown) is disposed on the bottom of the profiling block 120, and the positioning pin and the positioning groove are engaged with each other. Different contour blocks 120 can be replaced according to different workpieces, so that different supporting and positioning requirements can be met. The alignment pins and holes allow the copying block 120 and the support base 110 to be aligned and fitted to each other.
In this embodiment, the shape of constant head tank and profile modeling piece 120 is the cuboid, and for preventing the direction mistake that profile modeling piece 120 installed in the constant head tank, the quantity of locating pin is a plurality of, and the quantity of constant head tank is a plurality of, and a plurality of locating pins mutually support with a plurality of constant head tanks and prescribe a limit to the installation direction of profile modeling piece 120. That is, when the orientation of the contour block 120 is reversed, the positioning pins and the positioning holes cannot be engaged.
In addition, a locking device 112 is provided at one side of the mounting groove 111, and the locking device 112 is used to lock the contour block 120 in the mounting groove 111. In this embodiment, the locking device 112 is a bolt handle, which is used to cooperate with a threaded hole at the side of the mounting groove 111 to press the contour block 120 into the mounting groove 111.
As will be understood in conjunction with fig. 3 and 4, in order to achieve the pressing of the sensor 500 and the pipe member 600 in the profile groove 121, the fixing assembly 200 includes a fixing frame 210, a laser sensor 220 and a clamping device 230. The laser sensor 220 and the clamping device 230 are fixed on the fixing frame 210, the laser sensor 220 is used for detecting whether a workpiece to be installed is located on the supporting component 100, the clamping device 230 is used for pressing the workpiece to be installed on the supporting component 100, and the laser sensor 220 and the clamping device 230 are in communication connection with the controller. When the sensor 500 and the pipe 600 are placed in the profile groove 121, the laser sensor 220 detects that the workpiece is in the profile groove 121, the laser sensor 220 sends a signal to the controller, and the operator presses the control switch to control the clamping device 230 to press the sensor 500 and the pipe 600 into the profile groove 121. When the laser sensor 220 does not detect the presence of a workpiece in the contoured groove 121, the operator presses the control switch without any response. By using the laser sensor 220, misoperation of an operator can be avoided, and meanwhile, safety risks are reduced.
In this embodiment, the clamping device 230 includes a cylinder 231, a connecting rod 232, and a pressing rod 233. The cylinder 231 is fixed on the fixing frame 210, one end of the connecting rod 232 is hinged to the middle position of the pressing rod 233, the other end of the connecting rod 232 is hinged to the fixing frame 210, a piston rod of the cylinder 231 is hinged to one end of the pressing rod 233, and the other end of the pressing rod 233 can press a workpiece to be installed on the supporting assembly 100. The piston rod of the cylinder 231 is located below the pressing rod 233, and when the piston rod moves upward, the other end of the pressing rod 233 moves downward, pressing on the sensor 500. Otherwise, the pressing rod 233 is lifted from the sensor 500.
In order to prevent the pressing rod 233 from being in hard contact with the sensor 500, causing the sensor 500 to be crushed, the clamping device 230 further includes an elastic pad 234. An elastic pad 234 is fixed to one end of the pressing rod 233, and the elastic pad 234 can be pressed between the pressing rod 233 and a workpiece to be mounted. In this embodiment, the material of the elastic pad 234 is rubber.
In this embodiment, the moving member 320 includes a linear bearing (not shown), the linear bearing is installed between the moving member 320 and the mounting rod 310, and the moving member 320 can rotate around the mounting rod 310. The use of linear bearings facilitates the movement of the motion assembly 320 to rotate about the mounting rod 310 or slide up and down the mounting rod 310.
In order to enable automatic return of the torque gun 330 after use, the mounting mechanism 300 further includes a spring balancer 340, the spring balancer 340 being fixed to the mounting rod 310, the telescopic member of the spring balancer 340 being fixed to the moving assembly 320 and pulling the moving assembly 320 upward. When the operator releases the torque gun 330 after completing the bolt installation, the moving assembly 320 automatically moves upward to return to the initial position under the pulling force of the spring balancer 340. In this embodiment, the number of the spring balancers 340 is two, and the two spring balancers 340 are distributed in axial symmetry, so that the two sides of the moving assembly 320 are simultaneously subjected to the lifting force, which not only improves the lifting force, but also prevents the moving assembly 320 from being stuck.
To define the uppermost position of the moving assembly 320, an upper stopper 350 is fixed to the mounting rod 310. The upper stopper 350 includes an upper stopper located above the moving assembly 320 and a first proximity sensor mounted on a lower surface of the upper stopper, the first proximity sensor being in communication with the controller. When the first proximity sensor is triggered and sends a control signal to the controller, pressing the control switch of the clamp device 230 at this time causes the hold-down device to be lifted from the sensor 500.
In addition, a lower stopper 360 is fixed to the mounting rod 310, and the lower stopper 360 includes a lower stopper and a second proximity sensor mounted on an upper surface of the lower stopper. The lower limit block is located below the moving component 320, and when the torque gun 330 is installed, the moving component 320 abuts against the lower limit block. The lower stop 360 is used to prevent continued downward tightening of the bolt, which can cause the workpiece to be broken when the torque gun 330 fails.
The second proximity sensor is in communication connection with the controller, and the second proximity sensor is matched with the torque gun 330 detection system, so that the purpose of accurately controlling the installation process can be achieved. When the bolt is installed in place, the second proximity sensor just detects the moving assembly 320, at which time the second proximity sensor sends a control signal to the controller causing the indicator light on the controller to appear green. When the indicator light on the torque gun 330 shows green and the indicator light on the controller shows green, indicating that the bolt installation is complete, the torque gun 330 may be loosened.
In order to improve the versatility of the moving assembly 320, the moving assembly 320 includes a fixed block 321 and a moving member 322, the linear bearing is installed between the fixed block 321 and the mounting rod 310, a slide (not shown) extending in a horizontal direction is provided in the fixed block 321, the moving member 322 is slidably connected to the slide, and the torque gun 330 is fixed to one end of the moving member 322. That is, the extension and contraction distance of the torque gun 330 can be adjusted by moving the moving member 322 according to the installation position of the bolt on different types of workpieces. In this embodiment, a linear bearing is also installed between the fixed block 321 and the moving member 322.
In order to avoid hard collision between the two ends of the moving member 322 and the fixed block 321, the two ends of the moving member 322 are respectively provided with a moving stopper (not shown in the figure), and the two moving stoppers can abut against the two ends of the fixed block 321. In this scheme, remove the stopper and be the rubber material.
In an industrial production line, in order to track and record each workpiece, each sensor has a unique identification code, as shown in fig. 5, the device for installing the bolt further comprises a code scanning assembly 400, and the code scanning assembly 400 comprises a code scanning support rod 410, a connecting block 420 and a code scanner 430. The bar scanner 430 is fixed to the support rod through the connection block 420, and the bar scanner 430 is in communication with the controller. The scanner 430 can scan the identification code of the sensor 500 into the system, and simultaneously feed back the torque information fed back by the torque gun 330 to the system, thereby forming a complete piece of bolt installation condition information.
The code-scanning support rod 410 is provided with an oblong hole 411 extending in the vertical direction, and the connecting block 420 is connected to the oblong hole 411 through a bolt. The installation height of the scanner 430 can be adjusted by using the oblong hole 411.
In addition, the connecting block 420 is provided with a connecting hole 421 and an arc hole 422, the connecting hole 421 is located at the center of the arc hole 422, and the code scanner 430 is connected to the connecting hole 421 and the arc hole 422 through bolts. The angle of the code scanner 430 can be adjusted by the cooperation of the connection hole 421 and the arc hole 422. The oblong hole 411, the connecting hole 421 and the arc hole 422 are matched with each other, so that the scanning head of the code scanner 430 can be accurately aligned with the identification code on the sensor 500.
When the bolt is not installed in place, the torque gun 330 will indicate a fault red light and the control system will also receive a fault signal. In order to prevent the defective products from being mixed into other acceptable products, the device for mounting bolts according to the present embodiment further includes a defective product box (not shown) for placing the defective products and a grating sensor (not shown). The grating sensor is installed at the entrance of the defective box and is in communication connection with the controller. When the defective products are put into the defective product box, the grating sensor detects related signals, and the grating sensor sends signals to the controller at the moment, so that the controller can control the devices to continue to start the process of installing the bolts. However, if the defective item is dropped into the defective item box without being detected by the grating sensor, the controller controls each device to be in a stopped state, and the operation is disabled.
While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.
Claims (18)
1. An apparatus for mounting a bolt, comprising:
the supporting assembly is used for placing a workpiece to be installed;
the fixing assembly is used for fixing a workpiece to be installed on the supporting assembly;
the mounting mechanism comprises a vertically extending mounting rod, a moving assembly and a torque gun, one end of the moving assembly is connected with the mounting rod in a vertically sliding mode, the torque gun is fixed to the other end of the moving assembly, and the torque gun is located above the supporting assembly.
2. The apparatus for mounting a bolt of claim 1, further comprising a controller, the torque gun in communicative connection with the controller.
3. The apparatus of claim 2, wherein the support assembly comprises a support table and a contour block, the contour block being removably attached to the support table, the contour block having a contour groove thereon for receiving a workpiece to be mounted.
4. The apparatus for installing a bolt according to claim 3, wherein the support platform has a mounting groove, a positioning pin is provided on a bottom surface of the mounting groove, and a positioning groove is provided on a bottom of the contour block, and the positioning pin is engaged with the positioning groove.
5. The apparatus for mounting a bolt according to claim 4, wherein the number of the positioning pins is plural, the number of the positioning grooves is plural, and the plurality of positioning pins and the plurality of positioning grooves cooperate with each other to define the mounting direction of the contour block.
6. A device for mounting a bolt according to claim 4 wherein one side of the mounting slot is provided with a locking means for locking the profile block in the mounting slot.
7. The apparatus according to claim 2, wherein the fixing assembly comprises a fixing frame, a laser sensor and a clamping device, the laser sensor and the clamping device are fixed on the fixing frame, the laser sensor is used for detecting whether the workpiece to be installed is located on the supporting assembly, the clamping device is used for pressing the workpiece to be installed on the supporting assembly, and the laser sensor and the clamping device are in communication connection with the controller.
8. The device for installing the bolt according to claim 7, wherein the clamping device comprises an air cylinder, a connecting rod and a pressing rod, the air cylinder is fixed on the fixing frame, one end of the connecting rod is hinged to the middle position of the pressing rod, the other end of the connecting rod is hinged to the fixing frame, a piston rod of the air cylinder is hinged to one end of the pressing rod, and the other end of the pressing rod can press a workpiece to be installed on the supporting component.
9. A device for mounting a bolt according to claim 8 wherein the clamping means further comprises an elastic pad fixed to one end of the pressing rod, the elastic pad being capable of being pressed between the pressing rod and a workpiece to be mounted.
10. The apparatus of claim 2, wherein the motion assembly includes a linear bearing mounted between the motion assembly and the mounting rod, the motion assembly being rotatable about the mounting rod.
11. The apparatus for mounting a bolt of claim 10 wherein the mounting mechanism further includes a spring balancer secured to the mounting bar, the spring balancer having a telescoping member secured to the moving component and pulling the moving component upward.
12. The apparatus of claim 11, wherein an upper stop is secured to the mounting rod, the upper stop being positioned above the kinematic assembly, the upper stop being in communicative connection with the controller.
13. The apparatus of claim 11, wherein a lower stop is secured to the mounting rod, the lower stop being positioned below the kinematic assembly, the lower stop being in communicative connection with the controller.
14. The apparatus for mounting a bolt according to claim 10, wherein the moving assembly includes a fixed block and a moving member, the linear bearing is installed between the fixed block and the mounting rod, a slide way extending in a horizontal direction is provided in the fixed block, the moving member is slidably coupled to the slide way, and the torque gun is fixed to one end of the moving member.
15. The apparatus of claim 2, further comprising a code scanner assembly, wherein the code scanner assembly comprises a code scanner support rod, a connecting block, and a code scanner, wherein the code scanner is fixed to the support rod through the connecting block, and wherein the code scanner is communicatively coupled to the controller.
16. The apparatus for installing a bolt according to claim 15, wherein the knock-out support rod has an elongated hole extending in a vertical direction, and the connecting block is coupled to the elongated hole by a bolt.
17. The apparatus for mounting a bolt according to claim 16, wherein the connecting block has a connecting hole and an arc hole, the connecting hole is located at a center of the arc hole, and the bar code scanner is connected to the connecting hole and the arc hole by bolts.
18. The apparatus for mounting a bolt according to claim 2, further comprising a reject box for placing a reject, and a grating sensor installed at an inlet of the reject box, the grating sensor being communicatively connected to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361084.7A CN113579708A (en) | 2020-04-30 | 2020-04-30 | Device for mounting bolts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010361084.7A CN113579708A (en) | 2020-04-30 | 2020-04-30 | Device for mounting bolts |
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| Publication Number | Publication Date |
|---|---|
| CN113579708A true CN113579708A (en) | 2021-11-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010361084.7A Pending CN113579708A (en) | 2020-04-30 | 2020-04-30 | Device for mounting bolts |
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| CN (1) | CN113579708A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114505820A (en) * | 2022-04-20 | 2022-05-17 | 宁波旭升汽车技术股份有限公司 | Device for assembling fastener |
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