TWI812795B - Intelligent fool-proof device for locking screw - Google Patents

Abstract

An intelligent fool-proof device for locking screw is provided and includes a base, an assembly platform, a cover, a sensing unit, and a locking member. The assembly platform is positioned on the base. The cover is positioned on one side of the assembly platform. One end of the cover is movably connected to the base. The other side of the cover is provided with a magnetic component. The sensing unit corresponds to the magnetic component for sensing the approaching of magnetic component. The locking member is electrically connected to the sensing unit. When the cover is closed on the assembly platform, the sensing unit senses a proximity of the magnetic component, thereby controlling the locking member to automatically lock the cover.

Description

Smart anti-fool device for locking screws

The present invention relates to the technical field of screw installation, and more specifically to an intelligent fool-proof device for locking screws.

With the advancement of industrial production, industrial assembly products are becoming more and more sophisticated, and more and more screw locking operations are required inside the products. However, no matter whether it is a manual locking operation or an automatic locking operation, lock leakage is prone to occur and is not easy to detect. If there is no corresponding leak detection operation, it will greatly affect the product yield, increase the company's production costs, and affect the company's reputation.

In view of this, it is necessary to provide an intelligent fool-proof device for locking screws with an automatic locking function.

A smart anti-fool device for locking screws, including a base, an assembly table, a cover plate, a sensing unit and a locking piece. The assembly table is provided on the base, and the cover plate is provided on one side of the assembly table, and one end Movably connected to the base, the other end of the cover plate is provided with a magnetic component. The induction unit is provided corresponding to the magnetic component to sense the approach of the magnetic component. The locking piece is electrically connected to the induction unit. Connection, when the cover plate is closed on the assembly table, the sensing unit senses the approach of the magnetic component, and then triggers the locking element to automatically lock the cover plate.

The smart anti-fool device for locking screws provided by the present invention automatically locks the cover during the product assembly process to limit the movement of the assembled product and prevent human misuse from taking away the assembled product, thereby better detecting leaks in the assembled product. operate.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present invention.

Note that when an element is said to be "electrically connected" to another element, it can be directly on the other element or intervening elements may also be present. When one element is said to be "electrically connected" to another element, it can be a contact connection, for example, by a wire connection, or a non-contact connection, for example, a contactless coupling.

Unless otherwise defined, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this invention belongs. The terminology used herein in the description of the invention is for the purpose of describing specific embodiments only and is not intended to limit the invention.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following embodiments and features in the embodiments may be combined with each other unless there is any conflict.

Please refer to Figure 1. The present invention provides a smart anti-fool device 100 for locking screws. Please also refer to FIG. 5 . The smart screw locking anti-fool device 100 includes a fixture 10 , a control module 20 and an electric screwdriver 30 electrically connected to the control module 20 .

The fixture 10 includes a base 11 , an assembly table 12 , a cover 13 , a sensing unit 14 and a locking member 15 . The assembly platform 12 and the sensing unit 14 are both arranged on the base 11 . The cover 13 is movably connected to the base 11 through a rotating member 16, such as a hinge, and can be closed on the assembly table 12, and is automatically locked using the lock 15 to prevent misoperation by the user.

Please refer to Figure 2. The cover plate 13 is generally rectangular. One end of the cover 13 is movably connected to the base 11 through the rotating member 16 to realize the opening and closing function of the cover 13 , and the other end is provided with a magnetic component 131 , such as a magnet.

In this embodiment, the induction unit 14 may be a magnetic induction element. The induction unit 14 is disposed on the base 11 and is disposed corresponding to the magnetic component 131 . When the cover 13 is in the first state, for example, when the cover 13 is opened relative to the assembly platform 12 , the distance between the sensing unit 14 and the magnetic component 131 exceeds a preset threshold. The preset threshold is, for example, the preset sensing distance of the sensing unit 14 , when the sensing unit 14 cannot sense the magnetic component 131 . When the cover 13 is in the second state, for example, when the cover 13 is directly covered on the assembly table 12 , the distance between the induction unit 14 and the magnetic component 131 is less than the preset distance. threshold, so the sensing unit 14 can sense the magnetic component 131 .

Please refer to FIG. 3 and FIG. 4 , the locking member 15 is electrically connected to the sensing unit 14 and the control module 20 . In this embodiment, the locking member 15 includes a cylinder 151 , a locking piece 152 and a blocking block 153 . The cylinder 151 is disposed on the base 11 , is disposed corresponding to the sensing unit 14 , and is electrically connected to the sensing unit 14 and the control module 20 . A movable cylinder rod 1511 is provided on one side of the cylinder 151. When the sensing unit 14 senses that the magnetic component 131 on the cover plate 13 is approaching, the sensing unit 14 will trigger the cylinder 151 so that the cylinder rod 1511 of the cylinder 151 is pushed out. Furthermore, the control module 20 is electrically connected to the air cylinder 151, and the control module 20 is used to control the cylinder rod 1511 of the air cylinder 151 to shrink after completing the designated screw locking times.

The locking piece 152 is disposed on the cover plate 13 and is disposed corresponding to the cylinder 151 . The locking piece 152 includes a fixing part 1521 and a connecting part 1522 . The fixing portion 1521 is generally rectangular, and is fixed to the cover 13 by a plurality of screws. In this embodiment, the fixing portion 1521 is disposed on the cover 13 at a position adjacent to the magnetic component 131 . The connecting portion 1522 is substantially rectangular, and one end thereof is vertically connected to the fixing portion 1521 to form a substantially inverted L-shaped structure with the fixing portion 1521 . The connecting portion 1522 is provided corresponding to the cylinder rod 1511, and has a first through hole 1523 thereon. The blocking block 153 is fixed on the base 11 and is disposed between the connecting portion 1522 of the locking piece 152 and the cylinder 151 . The blocking block 153 is provided with a second through hole 1531 . The second through hole 1531 is provided corresponding to the first through hole 1523 . When the product to be assembled is placed on the assembly table 12 and the cover 13 is closed, the sensing unit 14 will sense the approach of the magnetic component 131 and control the cylinder rod 1511 of the cylinder 151 to eject. . At this time, the cylinder rod 1511 will pass through the second through hole 1531 and the first through hole 1523 in sequence, thereby locking the cover plate 13 . After completing the specified screw locking times, the control module 20 controls the cylinder rod 1511 of the cylinder 151 to shrink. At this time, the cylinder rod 1511 is reset and then exits the first through hole 1523 and the second through hole 1531 to facilitate opening of the cover plate 13 .

Please refer to Figure 5. The fixture 10, the electric screwdriver 30 and the control module 20 are electrically connected. When the control module 20 detects that the cover 13 is closed and automatically locked, the The control module 20 controls the electric screwdriver 30 to tighten the screws on the product to be assembled. In this embodiment, the signal transmission process of the electric screwdriver 30 and the control module 20 is introduced in detail by taking the locking of one screw, two screws and three screws respectively as an example.

In this embodiment, in order to better strengthen the workpiece, each screw is locked twice. When a screw needs to be locked, such as a #1 screw, the control module 20 sets a first preset value, such as 1. After the cover 13 is automatically locked, the control module 20 outputs a first control signal to control the electric screwdriver 30 to start forward rotation and then perform the screw locking operation. When the torque value of the electric screwdriver 30 reaches the preset value and stops automatically, the electric screwdriver 30 completes the first locking and outputs the first signal A1 to the control module 20 . After the first locking is completed, the electric screwdriver 30 rotates forward again, and then locks the same screw, such as the 1# screw, for the second time. When the torque value of the electric screwdriver 30 reaches the preset value, it stops automatically. , the electric screwdriver 30 outputs the second signal A2 to the control module 20 .

In this embodiment, the control module 20 receives the first signal A1 and the second signal A2 respectively, and determines two adjacent signals sent by the electric screwdriver 30, such as the first signal A1 and the second signal A2. Whether the time interval of the second signal A2 is less than or equal to the first preset time, such as 2s. If so, the control module 20 determines that the electric screwdriver 30 has completed a screw locking operation, and compares it with the first preset value, such as 1, and if they are equal, the control module 20 starts the The cylinder 151 is used to unlock the cover 13 . If not, the cover 13 cannot be opened.

When two screws need to be locked, such as 1# screw and 2# screw, the control module 20 sets a second default value, such as 2, and then repeats the process of locking one screw twice. And the control module 20 receives the first signal A1, the second signal A2, the third signal A3 and the fourth signal A4 in sequence. When the time interval between the first signal A1 and the second signal A2 is less than the first preset time (for example, 2s), and the time interval between the second signal A2 and the third signal A3 is greater than or equal to the second preset time, time (for example, 3.5s), that is, the time interval between two screw-locking operations is greater than or equal to the second preset time, it is judged that the electric screwdriver has completed the first screw-locking operation, and proceeds to lock the second screw. operate. When the time interval between the third signal A3 and the fourth signal A4 is less than the first preset time (for example, 2s), it is determined that the electric screwdriver 30 has completed two screw locking operations, and matches the second preset value. , for example, 2 is compared and if they are equal, the control module 20 starts the cylinder 151 to unlock the cover 13 . If not, the cover 13 cannot be opened.

When three screws need to be locked, such as 1# screw, 2# screw and 3# screw, the control module 20 sets a third default value, such as 3, and then repeats the process of locking one screw three times. And the control module 20 receives the first signal A1, the second signal A2, the third signal A3, the fourth signal A4, the fifth signal A5 and the sixth signal A6 in sequence. When the time interval between the first signal A1 and the second signal A2, the time interval between the third signal A3 and the fourth signal A4, and the time interval between the fifth signal A5 and the sixth signal A6 are all smaller than the A preset time (for example, 2s), and the time interval between the second signal A2 and the third signal A3, and the time interval between the fourth signal A4 and the fifth signal A5 are both greater than or equal to the second preset time (for example, 3.5s), that is, the time interval between three screw locking operations is greater than or equal to the second preset time, it is judged that the electric screwdriver 30 has completed three screw locking operations, and with the third preset value, For example 3, if the comparison is found to be equal, the control module 20 starts the cylinder 151 to unlock the cover 13 . If not, the cover 13 cannot be opened.

It can be understood that in this embodiment, the control module 20 includes a control chip with a storage function, which can set a default value in advance, and is also used to time and count after each screw locking operation is successful, and then complete the operation. The number of screw tightening operations is compared with the preset value to determine whether the product to be assembled has completed the preset number of screw tightening operations.

It can be understood that when the electric screwdriver 30 completes the preset screw locking times, the control module 20 drives the cylinder rod 1511 of the cylinder 151 to shrink, and the cylinder rod 1511 then withdraws from the first through hole 1523 and The second through hole 1531 allows the cover 13 to be opened manually.

It can be understood that if the control module 20 determines that the screw locking operation of the electric screwdriver 30 is unsuccessful or the number of locking times has not been reached, the cover 13 cannot be opened, thereby realizing the smart screw locking anti-fool device 100 monitoring and leak detection functions.

It can be understood that in other embodiments, the smart anti-fool device 100 for locking screws further includes an indicator 17 . The indicator 17 may be an indicator light, which is electrically connected to the control module 20 . When the control module 20 determines that the locking of the product to be assembled is completed, the control module 20 controls the indicator 17 to light up, thereby prompting that the screw locking operation is successful and the cover 13 has been unlocked. In this way, the cover 13 can be opened. By adding the indicator 17 to the smart screw-locking fool-proof device 100, the reminder function of the screw-locking smart fool-proof device 100 is realized.

It can be understood that in other embodiments, the indicator 17 is not limited to the indicator light shown above, and may also be other indicators, such as a buzzer. When the control module 20 determines that the locking of the product to be assembled is completed, the control module 20 controls the indicator 17 to sound an alarm, thereby prompting that the screw locking operation is successful and the cover 13 has been unlocked. . In this way, the cover 13 can be opened.

It can be understood that in other embodiments, the locking member 15 is not limited to the above-mentioned cylinder 151, locking piece 152 and blocking block 153. It can also be replaced with other molds for locking the cover plate 13. group. For example, the locking member 15 may only include a cylinder 151, and a spring piece is provided on one side of the cylinder 151. When the cover 13 is closed, the sensing unit 14 senses the approach of the magnetic member 131. The sensing unit 14 triggers the elastic piece of the cylinder 151 to push out, and then covers the cover 13 to complete the automatic locking process. Furthermore, the control module 20 is electrically connected to the cylinder 151. The control module 20 is used to control the elastic piece of the cylinder 151 to shrink after completing the specified screw locking times, so that the cover plate 13 Can be opened.

Obviously, when the screw locking smart anti-fool device 100 does not reach the set value or the electric screwdriver 30 does not reach the torque value, the cover 13 cannot be opened, and the assembled product cannot be taken out. This mechanism can effectively prevent the occurrence of screw leakage, so that the smart screw locking anti-fool device 100 has the functions of monitoring, reminding and product leakage detection. By preventing the cover 13 from being removed by human error, the smart anti-fool device 100 for locking screws can effectively reduce the defective rate of assembled products, reduce the cost of leak detection, and improve the company's reputation.

The above embodiments are only used to illustrate the technical solutions of the present invention and are not limiting. Although the present invention has been described in detail with reference to the above preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced. None should depart from the spirit and scope of the technical solution of the present invention. Those skilled in the art can also make other changes within the spirit of the present invention and apply them to the design of the present invention, as long as they do not deviate from the technical effect of the present invention. These changes made based on the spirit of the present invention should be included in the scope of protection claimed by the present invention.

100: Smart anti-fool device for locking screws 10:Jig 20:Control module 30: Electric screwdriver 11: Base 12:Assembly table 13:Cover 131:Magnetic parts 14: Induction unit 15:Lock firmware 151:Cylinder 1511:Cylinder rod 152: Locking piece 1521: Fixed part 1522:Connection part 1523: First through hole 153: Block 1531: Second through hole 16: Rotating parts 17:Indicator

Figure 1 is a schematic structural diagram of a screw-locking smart fool-proof device according to a preferred embodiment of the present invention. Figure 2 is a schematic diagram of the state of the screw-locking smart anti-fool device shown in Figure 1 when the cover is opened. Figure 3 is a partial enlarged view of the cover plate of the screw-locking smart anti-fool device shown in Figure 1 when it is closed on the assembly table and the cover plate is not locked yet. Figure 4 is a partial enlarged view of the cover plate of the screw-locking smart anti-fool device shown in Figure 1 when it is closed on the assembly table and the cover plate is locked. Figure 5 is an electrical connection diagram of the control module in the screw-locking smart anti-fool device shown in Figure 1.

without

100: Smart anti-fool device for locking screws

10:Jig

11: Base

12:Assembly table

13:Cover

131:Magnetic parts

14: Induction unit

15:Lock firmware

151:Cylinder

152: Locking piece

153: Block

16: Rotating parts

17:Indicator

Claims (10)

A smart anti-fool device for locking screws includes a base and an assembly stand. The improvement is that the smart anti-fool device for locking screws also includes a cover plate, a sensing unit and a locking member. The assembly stand is provided on the base, and the The cover plate is arranged on one side of the assembly table, and one end is movably connected to the base. The other end of the cover plate is provided with a magnetic component, and the induction unit is arranged corresponding to the magnetic component to sense the magnetism. When the cover plate is closed on the assembly table, the induction unit senses the approach of the magnetic component and triggers the locking component to The cover is automatically locked. According to the smart screw-locking fool-proof device described in item 1 of the patent application, the smart screw-locking fool-proof device further includes a control module, and the control module is electrically connected to the locking member. The control module The group is used to control the locking element to unlock the cover. According to the smart anti-fooling device for locking screws described in item 2 of the patent application, the locking member includes a cylinder, a locking piece and a blocking block, and the cylinder and blocking block are arranged on the base and correspond to the An induction unit is provided, the cylinder is electrically connected to the induction unit and the control module, a cylinder rod is provided on one side of the cylinder, and the locking piece is provided on the cover plate and is provided corresponding to the cylinder, so The locking piece is provided with a first through hole corresponding to the cylinder rod, the blocking block is provided between the cylinder and the locking piece, and the blocking block is provided with a second through hole corresponding to the first through hole. , when the induction unit senses the approach of the magnetic component, the induction unit drives the cylinder rod to eject, and causes the cylinder rod to pass through the second through hole and the first through hole in sequence. , to complete the locking of the cover plate; the control module drives the cylinder rod to shrink, to complete the unlocking of the cover plate. According to the smart fool-proof device for locking screws according to item 3 of the patent application, the locking piece includes a fixing part and a connecting part, and the fixing part is fixedly provided on the cover plate and adjacent to the magnetic component It is provided that one end of the connecting part is connected to the fixed part to form an L-shaped structure with the fixed part, and the first through hole is provided on the connecting part. According to the smart anti-fool device for locking screws according to item 2 of the patent application, the locking member includes a cylinder, the cylinder is arranged corresponding to the sensing unit, and the cylinder is connected with the sensing unit and the control module. Electrically connected, one side of the cylinder is provided with a spring piece. When the induction unit senses that the magnetic component is approaching, the induction unit triggers the spring piece of the cylinder to push out, thereby covering the cover plate, completing the alignment. The cover plate is locked, and the control module controls the elastic piece of the cylinder to shrink to complete the unlocking of the cover plate. According to the intelligent fool-proof device for locking screws described in item 1 of the patent application, the induction unit is a magnetic induction element. According to the intelligent fool-proof device for locking screws described in item 2 of the patent application, the intelligent fool-proof device for locking screws also includes an electric screwdriver, the electric screwdriver is electrically connected to the control module, and the electric screwdriver is The screw locking operation is performed under the control of the control module. According to the smart fool-proof device for screw locking described in item 7 of the patent application, when the electric screwdriver receives the first control signal from the control module, the electric screwdriver rotates forward to lock the screw. And each screw is locked twice. When the electric screwdriver completes the first locking and stops itself, it sends a first signal to the control module. When the electric screwdriver completes the second locking and stops itself, Send a second signal to the control module, the control module receives the first signal and the second signal, and when the control module determines the time between the first signal and the adjacent second signal When the interval is less than or equal to a first preset time, it is determined that the electric screwdriver has completed a screw locking operation; when the control module determines that the time interval between the first signal and the adjacent second signal is less than or equal to a first A preset time, and the time interval between the second signal when locking a screw and the current first signal is greater than or equal to the second preset time, it is determined that the electric screwdriver performs the operation of locking the second screw. According to the smart anti-fool device for screw locking described in item 8 of the patent application, the control module is also used to count each time a screw locking operation is completed and compare it with the preset number of screw locking operations. In comparison, when a preset number of screw locking times is reached, the control module controls the locking element to be unlocked. According to the intelligent screw-locking anti-fooling device described in item 2 of the patent application, the smart screw-locking anti-fooling device further includes an indicator, and the indicator is electrically connected to the control module for controlling the Under the control of the control module, the working status of the screw-locking smart anti-fool device is prompted.

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