CN114799025A - Intelligent mistake-proofing riveting device and method for manufacturing automobile charging port accessory - Google Patents

Abstract

The invention discloses an intelligent mistake-proofing riveting device and method for manufacturing automobile charging port accessories, wherein the device comprises a base and a riveting press, the riveting press comprises a pressing rod, a moving plate is arranged at the bottom of the pressing rod, and a riveting block is fixed below the moving plate; a top rod is mounted on the side face of the moving plate, an inductive switch is arranged on the base, and the top rod and the inductive switch work in a matched mode; the laser induction device comprises a base, a laser induction component, a laser receiving end and a laser receiving end, wherein the base is provided with a workbench, the middle of the workbench is provided with a storage groove, the workbench is provided with a plurality of groups of laser induction components, and each group of laser induction components comprises a laser emitting end and a laser receiving end; the riveting press also comprises a PLC control module, wherein the PLC control module receives signals of the laser sensing assembly and signals of the sensing switch to control the work of the riveting press. According to the invention, the in-place condition of the nut is detected by using the laser sensing assembly, the conditions of missing and misplacing the nut are avoided, and the press riveting quality of the automobile charging port accessory is ensured.

Description

An intelligent error-proof riveting device and method for the manufacture of automobile charging port accessories

technical field

The invention relates to the technical field of automobile parts manufacturing, in particular to an intelligent error-proof riveting device and method for manufacturing automobile charging port parts.

Background technique

After the parts are die-cast, internal threads need to be tapped at the through holes, or nuts need to be welded. When the die-casting car charging port accessories are relatively thin, the welding nut is easy to melt, the base material is easy to be welded and deformed, and the tapping internal thread is easy to slip. Left in the through hole, the riveting is firm and easy to use.

The four corners of the car charging port accessories need riveting nuts. When riveting, place the car charging port accessories on the workbench of the riveting machine, and then manually place the nuts on each through hole in turn, and then start the riveting machine. Press the nut into the through hole. During the actual riveting, omissions are likely to occur when manually placing the nuts, and some through holes will leak nuts, making the car charging port accessories defective and unusable. At the same time, when the riveting machine is pressed down, it is easy to cause the crimping to be in place, so that the nut cannot be completely pressed into the through hole, which affects the quality of the accessories of the car charging port.

SUMMARY OF THE INVENTION

In order to solve the above problems, the present invention provides an intelligent error-proof riveting device and method for the manufacture of automobile charging port accessories, which utilizes a laser to sense the position of the nut to ensure the riveting quality.

To this end, the first technical solution of the present invention is: an intelligent error-proof riveting device for the manufacture of automobile charging port accessories, including a base, a riveting machine is arranged on the base, and the riveting machine includes a pressure rod, and the bottom of the pressure rod is A moving plate is installed, and a riveting block is fixed under the moving plate; a mandrel is installed on the side of the moving plate, and an induction switch is arranged on the base, which is located directly under the mandrel, and the mandrel cooperates with the induction switch; the base is provided with a The workbench has a storage slot in the middle of the workbench, and the storage slot is located directly under the riveting block; the workbench is provided with multiple groups of laser induction components, each group of laser induction components includes a laser transmitter and a laser receiver; PLC control is also included. The PLC control module receives the signal of the laser induction component and the signal of the induction switch, and controls the riveting machine to work.

In the present invention, a laser induction component is arranged on the side of the position where the nut is placed. When the nut is placed in place, the laser emitted by the laser emitting end is irradiated on the nut, the laser receiving end can receive the laser reflected by the nut, and the PLC control module controls the riveting machine to be normal. work; if the laser receiving end does not receive the reflected laser, it means that the through hole corresponding to the laser receiving end lacks a nut, and the riveting machine cannot work, and the user needs to replace the nut in time to avoid the riveted car charging port accessories The nut is missing and needs to be reworked; when the riveting machine is working normally, the pressing rod drives the moving plate down, the ejector rod on the side of the moving plate moves down, and presses the induction switch. After the pressing is finished, the induction switch will control the PLC The module sends a signal, and the PLC control module controls the riveting machine to stop the riveting work, move up and reset, so that the nut can be crimped to the bottom and ensure the quality of the car charging port accessories.

Preferably, the storage slot in the worktable is of a rectangular structure, and four sets of laser sensing components are arranged on the workbench, which are divided into four corners of the storage slot; the laser emitting end and the laser receiving end of each group of laser sensing components are The included angle of the ends is 120 degrees. Because the car charging port accessories have a rectangular structure, there are through holes for riveting nuts at the four top corners. Therefore, laser sensing components are installed at the four top corners of the storage slot to detect the position of each nut.

Preferably, the inductive switch includes an inductive seat and an inductive rod, the inductive seat is fixed on the base, the inductive seat is provided with a measurement hole, the inductive rod is placed in the measurement hole, the bottom of the measurement hole is provided with inductive contacts, and the inductive contacts are connected with The induction rod works together; the induction rod is covered with a spring, one end of the spring is pressed against the induction rod, and the other end is pressed against the induction seat. In normal state, the spring separates the sensing rod from the sensing contact. When the sensing rod is pressed down to the bottom by the ejector rod, the sensing rod is connected to the sensing contact, and an in-position signal can be sent to the PLC control module, so that the PLC control module can control the pressure. The riveting machine stops the riveting work and moves up to reset.

Preferably, the base is provided with a guide post, and the moving plate is provided with a guide hole, which is sleeved on the guide post and can move up and down along the guide post. Both ends of the moving plate move up and down along the guide column to ensure the smooth movement of the moving plate and the riveting block.

Preferably, the base is provided with a safety grating assembly, including a grating transmitting end and a grating receiving end, which are respectively located on both sides of the base. The safety grating is composed of a set of transmitters and receivers. The transmitter will transmit a set of infrared beams, and the receiver will include many light sensors. If the object is between the transmitter and the receiver, the receiver cannot receive it. When the complete signal is reached, a stop signal will be sent to the monitored equipment. The safety grating will be connected to the safety relay. If an object is detected, the power source that will cause harm will be automatically removed. That is, when the user's hand reaches into the safety grating assembly, the riveting machine will not start, which can ensure the user's safety. Safety.

The second technical solution of the present invention is: an intelligent error-proof riveting method for the manufacture of automobile charging port accessories, using the above-mentioned riveting device, including the following steps:

1) Place the car charging port accessories to be processed in the storage slot of the workbench;

2) Place the nuts in sequence at the through holes of the car charging port accessories, each nut corresponds to a set of laser sensing components; the laser emitted by the laser transmitter irradiates the nut, and the laser receiver receives the laser reflected by the nut, indicating that Put the nut in place, and send the nut in place information to the PLC control module;

3) Press the start button, the PLC control module receives the nut in-position information sent by the four sets of laser sensing components, and then controls the riveting machine to work normally. If some nut in-position information is missing, the riveting machine does not work;

4) When all the nuts are in place, the riveting machine works normally, the pressing rod drives the moving plate and the riveting block to move down, and the riveting block presses the nut into the through hole;

5) The ejector rod on the mobile board is moved down, and the induction rod is pressed down, so that the induction rod is connected with the induction contact, and the crimping position signal is sent to the PLC control module, and the PLC control module controls the reset of the riveting machine;

6) Remove the car charging port accessories with the riveted nut, put in the car charging port accessories to be processed, and repeat the above steps.

Compared with the prior art, the present invention has the beneficial effects of: using the laser induction component to detect the position of the nut, avoiding the leakage and misplacement of the nut, and ensuring the riveting quality of the accessories of the automobile charging port; The cooperation of the rod ensures that the riveting machine is crimped to the end, and the nut will not be exposed; the PLC control module is used to realize the semi-automatic riveting work, which further improves the riveting efficiency.

Description of drawings

Further detailed description will be given below in conjunction with the accompanying drawings and the embodiments of the present invention

Fig. 1, Fig. 2 are structural representations of the present invention;

Fig. 3 is a partial enlarged view of Fig. 1;

Fig. 4 is the structure top view of the workbench of the present invention;

FIG. 5 is a sectional view of the structure of the induction switch of the present invention.

Marked in the figure: base 1, worktable 11, storage slot 12, riveting machine 2, moving plate 3, ejector rod 31, guide post 4, riveting block 5, riveting head 51, induction switch 6, induction seat 61, induction Rod 62, measuring hole 63, sensing contact 64, spring 65, laser sensing component 7, laser emitting end 71, laser receiving end 72, nut 8, grating transmitting end 91, grating receiving end 92, car charging port accessories 10.

Detailed ways

In the description of the present invention, it should be noted that for orientation words, such as the terms "center", "horizontal (X)", "longitudinal (Y)", "vertical (Z)", "length", " Width, Thickness, Top, Bottom, Front, Back, Left, Right, Vertical, Horizontal, Top, Bottom, Inside ", "outside", "clockwise", "counterclockwise" and other indications of orientation and positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or indicating the number of technical features. Therefore, defining the "first" and "second" features may expressly or implicitly include one or more of the features, and in the description of the present invention, "several" and "several" mean two or two above, unless otherwise expressly specifically defined.

See attached image. The intelligent error-proof riveting device of this embodiment includes a base 1, a riveting machine 2 is arranged on the base, the riveting machine includes a pressing rod, a movable plate 3 is installed at the bottom of the pressing rod, and a guide post 4 is arranged on the base, The moving plate 3 is provided with a guide hole, which is sleeved on the guide post 4 and can move up and down along the guide post 4 . Both ends of the moving plate move up and down along the guide column to ensure the smooth movement of the moving plate and the riveting block. A riveting block 5 is fixed below the moving plate 3, and four riveting heads 51 are arranged at the lower end of the riveting block 5;

A push rod 31 is installed on the side of the moving plate 3, and an induction switch 6 is arranged on the base 1, which is located directly below the push rod 31. The push rod 31 cooperates with the induction switch 6; the induction switch 6 includes an induction seat 61 and an induction rod. 62. The sensing seat 61 is fixed on the base 1, the sensing seat 61 is provided with a measuring hole 63, the sensing rod 62 is placed in the measuring hole 63, and the bottom of the measuring hole is provided with a sensing contact 64, which cooperates with the sensing rod 62 Work; the sensing rod 62 is covered with a spring 65, and the measuring hole has a stepped surface. In the normal state, the spring 65 separates the sensing rod 62 from the sensing contact 64. When the sensing rod 62 is pressed down to the bottom by the ejector rod 31, the sensing rod 62 is connected to the sensing contact 64, and an in-position signal can be sent to the PLC control module. The PLC control module can control the riveting machine to stop the riveting work and move up to reset.

The base 1 is provided with a worktable 11 , a storage slot 12 is arranged in the middle of the worktable 11 , the storage slot is of a rectangular structure, and the storage slot 12 is located directly below the riveting block 5 ; The worktable 11 is provided with four sets of laser sensing components 7. It is divided into four top corners of the storage slot 12; each group of laser sensing components 7 includes a laser emitting end 71 and a laser receiving end 72, and the included angle between the laser emitting end and the laser receiving end is 120 degrees. When the nut 8 is placed in place, the laser emitted by the laser transmitting end irradiates the nut, and the laser receiving end can receive the laser reflected by the nut. If the laser receiving end does not receive the reflected laser, it means that the If there is a lack of nut on the hole, the riveting machine cannot work, and the user needs to make up the nut in time.

The base 1 is provided with a PLC control module (not shown in the figure), the PLC control module can receive the signal of the laser induction component, judge the position of the nut, so as to control the normal operation of the riveting machine; the PLC control module can receive the signal of the induction switch. Signal, it is judged that the nut is pressed in place, and the riveting machine is controlled to stop the pressing work.

The base 1 is provided with a safety grating assembly, including a grating transmitting end 91 and a grating receiving end 92, which are respectively located on both sides of the base. The safety grating is composed of a set of transmitters and receivers. The transmitter will transmit a set of infrared beams, and the receiver will include many light sensors. If the object is between the transmitter and the receiver, the receiver cannot receive it. When the complete signal is reached, a stop signal will be sent to the monitored equipment. The safety grating will be connected to the safety relay. If an object is detected, the power source that will cause harm will be automatically removed. That is, when the user's hand reaches into the safety grating assembly, the riveting machine will not start, which can ensure the user's safety. Safety.

When riveting:

1) Place the car charging port accessory 10 to be processed in the storage slot 12 of the workbench 11, and the storage slot is adapted to the shape of the car charging port accessory;

2) Place the nut 8 at the four through holes of the car charging port fitting 10 in sequence, and the side of each nut just corresponds to a group of laser sensing components 7; the laser emitted by the laser emitting end 71 is irradiated on the nut 8, and the laser receiving end 72 If the laser reflected by the nut can be received, it means that the nut is in place, and the nut in-position information is sent to the PLC control module;

3) Press the start button, the PLC control module receives the nut in-position information sent by the four sets of laser sensing components, and then controls the riveting machine 2 to work normally. If part of the nut in-position information is missing, the riveting machine does not work;

4) When all the nuts are in place, the riveting machine 2 works normally, the pressing rod drives the moving plate 3 and the riveting block 5 to move down, and the riveting block presses the nut 8 into the through hole;

5) At the same time, the ejector rod 31 on the moving plate 3 also moves down with the moving plate, and the ejector rod 31 contacts the sensing rod 62 and presses the sensing rod 62 down, so that the sensing rod 62 is connected to the sensing contact 64 below, and the transmission is sent. The crimping position signal is sent to the PLC control module, and the PLC control module controls the riveting machine to stop and continue to press down, and the riveting machine resets;

6) So far, all nuts on the car charging port accessories are riveted, remove the car charging port accessories with the riveted nuts, and re-insert the car charging port accessories to be processed, and repeat the above steps.

The above are only the preferred embodiments of the present invention, and the protection scope of the present invention is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present invention belong to the protection scope of the present invention. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims (6)

1. The utility model provides an intelligence mistake proofing riveting set that is used for car to charge mouthful accessory to make which characterized in that: the riveting device comprises a base, wherein a riveting press is arranged on the base and comprises a pressing rod, a movable plate is arranged at the bottom of the pressing rod, and a riveting block is fixed below the movable plate; the side surface of the movable plate is provided with a top rod, the base is provided with an inductive switch and is positioned right below the top rod, and the top rod and the inductive switch work in a matching way; the base is provided with a workbench, the middle of the workbench is provided with a storage groove, and the storage groove is positioned right below the riveting block; a plurality of groups of laser sensing assemblies are arranged on the workbench, and each group of laser sensing assemblies comprises a laser emitting end and a laser receiving end; the riveting press also comprises a PLC control module, wherein the PLC control module receives signals of the laser sensing assembly and signals of the sensing switch to control the work of the riveting press.

2. The intelligent mistake proofing riveting set for manufacturing of automobile charging port accessories as claimed in claim 1, characterized in that: the object placing groove in the workbench is of a rectangular structure, and four groups of laser sensing assemblies are arranged on the workbench and are positioned at four vertex angles of the object placing groove; the included angle between the laser emitting end and the laser receiving end on each group of laser sensing assemblies is 120 degrees.

3. The intelligent mistake proofing riveting set for manufacturing of automobile charging port accessories as claimed in claim 1, characterized in that: the induction switch comprises an induction seat and an induction rod, the induction seat is fixed on the base, a measuring hole is formed in the induction seat, the induction rod is arranged in the measuring hole, an induction contact is arranged at the bottom of the measuring hole, and the induction contact is matched with the induction rod to work; the sensing rod is sleeved with a spring, one end of the spring is propped against the sensing rod, and the other end of the spring is propped against the sensing seat.

4. The intelligent mistake proofing riveting set for manufacturing of automobile charging port accessories as claimed in claim 1, characterized in that: the base is provided with a guide pillar, the movable plate is provided with a guide hole, and the movable plate is sleeved on the guide pillar and can move up and down along the guide pillar.

5. The intelligent mistake proofing riveting set for manufacturing of automobile charging port accessories as claimed in claim 1, characterized in that: the base is provided with a safety grating assembly which comprises a grating transmitting end and a grating receiving end, and the grating transmitting end and the grating receiving end are respectively positioned on two sides of the base.

6. The utility model provides an intelligent mistake proofing riveting method for car mouth accessory manufacturing that charges which characterized in that: the riveting device according to any one of claims 1 to 5, comprising the steps of:

1) placing the automobile charging port accessory to be processed in an object placing groove of a workbench;

2) the method comprises the following steps of sequentially placing nuts at through holes of automobile charging port accessories, wherein each nut corresponds to a group of laser sensing assemblies; laser emitted by the laser emitting end irradiates on the nut, and the laser receiving end receives the laser reflected by the nut, so that the nut is placed in place, and the nut in-place information is sent to the PLC control module;

3) pressing a start button, controlling the squeeze riveter to normally work if the PLC control module receives nut in-place information sent by the four groups of laser sensing assemblies, and not working if partial nut in-place information is lacked;

4) when all the nuts are in place, the squeeze riveter normally works, the press rod drives the moving plate and the riveting block to move downwards, and the riveting block presses the nuts into the through holes;

5) the ejector rod on the moving plate moves downwards, the induction rod is pressed downwards to be connected with the induction contact, a crimping in-place signal is sent to the PLC control module, and the PLC control module controls the riveting press to reset;

6) and taking down the automobile charging port fitting riveted with the nut, putting the automobile charging port fitting to be processed, and repeating the steps.

Images