CN113523149B - A method and system for real-time monitoring and early warning of machining operations - Google Patents

Abstract

The invention provides a real-time monitoring and early warning method and a real-time monitoring and early warning system for machining operation, which comprise a basic platform, a stamping structure, an image recognizer, an analysis controller and a safety protection device, wherein the stamping structure is used for stamping the basic platform; the image recognizer senses the staying action and the staying time of the hands of the user on the basic platform to obtain related signals, the signals are transmitted to the analysis controller, the analysis controller judges whether the staying time of the hands exceeds preset time or not according to the comparison, and the safety protection device is started to protect the hands after the staying time exceeds the preset time so as to avoid the damage of the equipment to the user. This application is through monitoring operating personnel's operating time promptly, reminds operating personnel to accomplish the operation in the safe operating time of standard, and safety control personnel need frequently to patrol and safety inspection production flow in the enterprise, hardly think whole mill moreover, and then can monitor operation workman's operating condition constantly with this kind of safety arrangement that this application provided, discovery problem that can be more effective timely.

Description

A method and system for real-time monitoring and early warning of machining operations

technical field

The invention relates to a real-time monitoring and early warning method and system for machining operations.

Background technique

In recent years, with the rise and promotion of the scientific and technological revolution and the industrial revolution, the country has vigorously developed the manufacturing industry. At present, my country has established a complete industrial chain, becoming one of the few countries in the world with all industrial categories. With the rapid development of the manufacturing industry, the traditional safety management model that mainly relies on safety managers has become less and less suitable for the development of today's manufacturing industry. It is time to change a new idea and think of a more efficient and complete safety management methods.

Production operators in the manufacturing industry are highly mobile. After investigations and field visits to the talent flow market, it was found that a large part of the reason is that when production operators feel that there is no guarantee of safety issues, they will change jobs or even companies. This phenomenon is also It reflects the impact of standardized safe production operations on the mobility of personnel in production and operation positions in the manufacturing process.

For example, stamping equipment in mechanical production, such stamping equipment requires workers to repeatedly insert their hands into the mechanical equipment, and then press-form the parts or complete the required pressing process through the pressing structure. However, this kind of punching equipment is a very dangerous work, and it is very easy to accidentally injure the staff when the person's hand is not taken out of the punching structure in time, although some protective structures have also been used in the prior art. To solve this problem, but its effect is relatively general, mainly because of its lack of intelligence, it is impossible to predict the danger more automatically or in advance to avoid the occurrence of this problem.

Correspondingly, after a series of research and design, the applicant has conceived an innovative design of "safety box", which is designed according to this phenomenon and background, and the purpose is to promote the standardized production of the manufacturing industry and promote the manufacturing industry. healthy and efficient development.

And through the arrangement of this structural device, the following effects can be achieved: (1) to form a relatively standardized production operator's production operation process; (2) to effectively reduce the operator's risk by identifying the safety operation problems of each process; ( 3) Through the program feedback, the "Key position" that often has problems and the related processes that affect it can be found.

The application of "safety box" to monitor and regulate the safe production and operation behavior of workers in each process is conducive to ensuring the safety of operators, and also positively guides the safe and standardized production and efficient production of manufacturing enterprises, and promotes the healthy development of the manufacturing industry.

SUMMARY OF THE INVENTION

In order to solve the problems existing in the above technologies, the present invention provides a device structure with an automatic identification function and a safety protection function activated.

The invention provides a real-time monitoring and early warning system for machining operations, which includes a basic platform, a stamping structure, an image recognizer, an analysis controller and a safety protection device;

The basic platform is used to place the mechanical workpiece to be pressed;

The punching structure is arranged above the base platform, and the punching structure moves to the base platform repeatedly and completes the pressing action on the mechanical workpiece;

An image recognizer is arranged on the punching structure, and the image recognizer is used to recognize the image signal of the user's hand on the basic platform;

The analysis controller is signally connected to the image recognizer, the analysis controller has a time comparison module, and the time comparison module has a standard time, and the standard time is that the image signal of the hand stays on the basic platform the standard time, the analysis controller is used to analyze whether the actual dwell time of the image signal of the user's hand on the basic platform exceeds the standard time;

A safety protection device is arranged on the stamping structure, the safety protection device is connected with the analysis controller, and the analysis controller starts the safety protection device to work in an emergency.

The beneficial effect of the above scheme is: the image recognizer senses the staying action and time of the user's hand on the basic platform to obtain relevant signals, and these signals are transmitted to the analysis controller, and the analysis controller judges the hand according to the comparison. Whether the stay time exceeds the predetermined time, and after the predetermined time is exceeded, the safety protection device is activated for protection, so as to prevent the equipment from causing harm to the user.

That is, this application reminds the operator to complete the operation within the specified safe operation time by monitoring the operation time of the operator. In conventional enterprises, the safety management personnel need to conduct frequent inspections and safety inspections on the production process, and it is difficult to take care of the entire factory. With the safety box provided by the present application, the operation state of the operator can be monitored at all times, and problems can be found more effectively and in a timely manner.

A preferred solution is that the basic platform includes a support table, a vertical connecting plate, a vertical chute, a pressing table, a spring structure, and a vertical mounting plate, and the vertical connecting plate and the vertical mounting plate are both provided. On the supporting table, the vertical chute is arranged on the vertical connecting plate, the bottom of the pressing table is provided with the spring structure, and the bottom of the spring structure is also connected to the supporting table;

The punching structure includes a lifting rod body and a lifting punching block, the lifting punching block is arranged in the vertical chute, and both sides of the lifting punching block are also slidably arranged in the vertical sliding slot through guide rods. on the side wall;

The safety protection device includes a brake cylinder, a brake plate, a turning brake plate, and a hinged installation plate, the hinged installation plate is arranged on the side of the pressing table, and the turning brake plate is hinged on the hinged installation. In the plate, the bottom of the overturned brake plate is in contact with the brake plate adjacently through a transverse driving rod, the brake plate is connected with the brake cylinder through a telescopic rod, and the top of the overturned brake plate is in contact with the brake plate. The engaging plate is detachably engaged in the side engaging groove of the lifting punching block by turning over the engaging plate.

The beneficial effects of the above solution are: through the setting of the brake cylinder, it can press and adjust the overturning brake plate, so that the overturning engaging plate at the upper end of the overturning brake plate can be combined or separated for the movement of the lifting rod body, and then Control whether the stamping structure and the base platform are connected as an integral structure, and when connected as an integral structure, the formation of danger can be avoided.

A preferred solution is that the other end of the pressing table is provided with an auxiliary installation plate, and the auxiliary installation plate is hingedly provided with a flip-up snap plate, and the flip-up snap plate is connected by the first bending crank, the oblique crank and the second. The bending crank is connected with the rotating shaft of the overturning brake plate, and the first bending crank, the oblique crank and the second bending crank are hingedly connected in sequence.

A preferred solution is to further include an auxiliary protection structure, the auxiliary protection structure has a vertical support rod, a driving motor, an eccentric rotating disk, a driving disk body, a bending and swinging rod, a concave connecting plate, a bending buffer plate, and a buffer spring. , buffer protection rod, buffer protection frame, the driving disc body has a first rod body and a first driving rod, the bending and swinging rod has a second rod body and a third rod body connected in sequence, the driving disc body is sleeved On the eccentric rotating disk, the eccentric rotating disk is connected with the driving motor, the first rod body and the second rod body are hingedly connected, and the buffer protection frame body is hingedly arranged at the hinged position, and the buffer protection frame is hinged. The protection frame is connected to the buffer spring through the buffer protection rod, the buffer protection rod passes through the middle rod portion of the bending buffer plate, and the upper end of the bending buffer plate is hinged to the first driving rod The lower end of the bending buffer plate is hinged on the third rod body; the connection position of the second rod body and the third rod body is hinged on the buffer protection frame body, and the lower end of the concave connecting plate is connected to the The lift rod body.

The early warning method of the real-time monitoring and early warning system for machining operations provided by the present invention comprises the following steps:

The user repeatedly puts the mechanical workpiece to be pressed onto the basic platform by hand, and then completes the pressing action on the mechanical workpiece to be pressed on the basic platform through the punching structure, and then the user completes the pressing by hand. The mechanical workpiece is taken away from the base platform;

: the image recognizer obtains an image of the user's hand extending into the basic platform, and calculates the actual stay time of the user's hand on the basic platform; the analysis controller uses the ratio The module compares the actual dwell time with the specification time. When the actual dwell time exceeds the preset range, the installation protection device is activated, and the installation protection device protects the pressing action of the stamping structure on the basic platform. , to protect the user's hands.

A preferred solution is to include the following steps:

The safety protection device has a working state and a safety control state. In the safety control state, the flipping engaging plate at the upper end of the flipping brake plate is engaged in the side engaging groove, so that the The lifting and punching block forms an integral structure with the pressing table below. When the lifting and punching block moves downward, it will correspondingly drive the overturning brake plate and the pressing table to move downward, and correspondingly compress the spring structure below. deformation, and since the pressing table will follow the lifting and pressing block to move downward, the user's hand between the pressing table and the lifting and pressing block plays a protective role; in the working state, the overturning The overturning engaging plate at the upper end of the moving plate is in a separated state from the side engaging groove, and the brake cylinder drives the rod laterally to the bottom of the overturning braking plate through the telescopic rod and the braking plate. Pressing is performed to separate the inversion engaging plate at the upper end of the inversion braking plate from the side engaging groove. At this time, when the lifting stamping block is pressed down, the mechanical workpiece to be pressed will be completed on the basic platform. suppressing action.

A preferred solution includes the following steps: when the overturning brake plate performs the overturning hinge movement, the second bending crank, the inclined crank and the first bending crank are correspondingly driven by the rotating shaft rod. The crank moves, so as to separate or engage the flip-up engaging plate on the accessory mounting plate and the side engaging groove.

A preferred solution is to include the following steps:

The drive motor provides power to drive the eccentric rotating disk to continuously rotate, and the eccentric rotating disk will correspondingly drive the driving disk body to continuously swing when it rotates eccentrically, and the driving disk body is oscillating. At the same time, it will drive the first rod body and the first driving rod to move, and the first rod body will reciprocally drive the bending and swing rod and the lifting rod body to reciprocate up and down, so as to complete the operation of the basic platform. The pressing action of the mechanical workpiece to be pressed on the machine;

When the reverse force generated by the lifting rod body during the pressing action exceeds the set value, it will automatically drive the first driving rod to swing downward, so that the bending and swinging rod will move closer to the intermediate shaft for storage. Folding will further compress and deform the buffer spring, thereby producing a buffer elastic protection effect, so that the pressing force of the user's hand entering the basic platform by mistake is controlled within the protection limit.

Description of drawings

Fig. 1 is the structural schematic diagram of the first angle of view of real-time monitoring and early warning of machining operations of the present invention;

Fig. 2 is a structural schematic diagram of the second perspective of real-time monitoring and early warning of machining operations of the present invention;

3 is a schematic structural diagram of a third perspective of real-time monitoring and early warning of machining operations of the present invention;

Fig. 4 is the enlarged structural representation of A area in Fig. 1;

Fig. 5 is the enlarged structural representation of C area in Fig. 3;

6 is a schematic diagram of the structure of the present invention, where the real-time monitoring and early warning of machining operations is removed and the basic platform is removed;

Fig. 7 is the enlarged structural representation of B region in Fig. 2;

8 is a schematic structural diagram of the auxiliary protection structure for real-time monitoring and early warning of machining operations of the present invention.

Detailed ways

First embodiment:

As shown in FIGS. 1 to 8 , a real-time monitoring and early warning system for machining operations provided by the present invention includes a basic platform 10 , a stamping structure 20 , an image recognizer, an analysis controller and a safety protection device 30 ;

The basic platform 10 is used to place the mechanical workpiece 1 to be pressed;

The punching structure 20 is arranged above the base platform 10, and the punching structure 20 moves to the base platform 10 repeatedly and completes the pressing action on the mechanical workpiece 1;

The image recognizer is arranged on the punching structure 20, and the image recognizer is used to recognize the image signal of the user's hand on the basic platform 10;

The analysis controller is signally connected with the image recognizer, and the analysis controller has a time comparison module, and the time comparison module has a standard time, and the standard time is that the image signal of the hand is on the basic platform 10 Standard stay time, the analysis controller is used to analyze and compare whether the actual stay time of the image signal of the user's hand on the basic platform exceeds the standard time;

A safety protection device 30 is disposed on the stamping structure 20 , the safety protection device 30 is connected with the analysis controller, and the analysis controller activates the safety protection device 30 to work in an emergency.

The early warning method of the real-time monitoring and early warning system for machining operations provided by the present invention comprises the following steps:

The user repeatedly puts the mechanical workpiece 1 to be pressed onto the basic platform 10 by hand, and then completes the pressing action on the mechanical workpiece 1 to be pressed on the basic platform 10 through the punching structure 20 , and then the user passes The pressed mechanical workpiece 1 is taken away from the basic platform 10 by hand;

: the image recognizer obtains an image of the user's hand extending into the base platform 10, and calculates the actual stay time of the user's hand on the base platform 10; the analysis controller The comparison module compares the actual stay time with the specification time, and starts the installation protection device when the actual stay time exceeds the preset range. Press action to protect the user's hand.

Second embodiment:

Preferably, the basic platform 10 in this embodiment includes a support table 11 , a vertical connecting plate 12 , a vertical chute 13 , a pressing table 14 , a spring structure 15 , and a vertical mounting plate 16 . The vertical connecting plate 12 and the vertical mounting plate 16 are arranged on the support table 10, the vertical chute 13 is arranged on the vertical connecting plate 12, the bottom of the pressing table 14 is arranged with the spring structure 15, The bottom of the spring structure 15 is also connected to the support table 11;

The punching structure 20 includes a lifting rod body 21 and a lifting punching block 22 . The lifting punching block 22 is arranged in the vertical chute 13 , and two sides of the lifting punching block 22 are also slidably arranged through the guide rods 23 . on the side wall of the vertical chute 13;

The safety protection device 30 includes a brake cylinder 31, a brake plate 32, a turning brake plate 33, and a hinged mounting plate 34. The hinged mounting plate 34 is arranged on the side of the pressing table 14, and the turning brake The plate 33 is hinged in the hinged mounting plate 34 , the bottom of the overturning brake plate 33 is in contact with the brake plate 32 adjacently through the lateral driving rod 340 , and the brake plate 32 is connected to the brake plate 32 through the telescopic rod 36 . The brake cylinder 31 is connected, and the top of the overturning braking plate 33 is detachably engaged in the side engaging groove 221 of the lifting punching block 22 through the overturning engaging plate 37 .

This embodiment also includes the following steps:

The safety protection device 30 has a working state and a safety control state. When in the safety control state, the flipping engaging plate 37 on the upper end of the flipping brake plate 33 is engaged in the side engaging groove 221 , so that the lifting punching block 22 and the pressing table 14 below form an integrated structure. When the lifting punching block 22 moves down, it will correspondingly drive the overturning brake plate 33 and the pressing table 14 to move downward, and Correspondingly, the lower spring structure 15 is compressed and deformed, and since the pressing table 14 will follow the lifting and punching block 22 to move downward, the user's hand between the pressing table 14 and the lifting and pressing block 22 is protected. Function; when in the working state, the overturning engaging plate 37 at the upper end of the overturning brake plate 33 and the side engaging groove 221 are in a separated state, and the braking cylinder 31 passes through the telescopic rod 36 and the braking plate 32 to press the lateral driving rod 340 at the bottom of the overturning braking plate 33 to separate the overturning engaging plate 37 at the upper end of the overturning braking plate 33 from the side engaging groove 221 , at this time, when the lifting stamping block 22 is pressed down, the pressing action for the mechanical workpiece 1 to be pressed will be completed on the basic platform 10 .

Third embodiment:

The other end of the pressing table 14 is provided with an auxiliary mounting plate 16, and the auxiliary mounting plate 16 is hingedly provided with an overturned engaging plate 37. Two bending cranks 373 are connected to the rotating shaft 374 of the flip brake plate, and the first bending crank 371 , the oblique crank and the second bending crank 372 are hingedly connected in sequence.

It includes the following steps: when the flip brake plate 33 performs flip hinge movement, the second bending crank 373 , the inclined crank 372 and the first bending crank 371 are correspondingly driven by the rotating shaft 374 The movement is performed, so that the flip-over engaging plate 37 on the auxiliary mounting plate 16 is separated or engaged with the side engaging groove 221 .

Fourth embodiment:

It also includes an auxiliary protection structure 40, the auxiliary protection structure 40 has a vertical support rod 41, a driving motor 42, an eccentric rotating disk 43, a driving disk body 44, a bending and swinging rod 45, a concave connecting plate 46, and a bending buffer plate 47. , buffer spring 48, buffer protection rod 49, buffer protection frame 50, the driving disc body 44 has a first rod body 441 and a first driving rod 442, the bending and swinging rod 45 has a second rod body 401 and The third rod body 402, the driving disk body 44 is sleeved on the eccentric rotating disk 43, the eccentric rotating disk 43 is connected with the driving motor 42, the first rod body 441 and the second rod body 401 are hingedly connected, And the buffer protection frame body 50 is hingedly arranged at the position of the hinge connection, and the buffer protection frame body 50 is connected with the buffer spring 48 through the buffer protection rod 49, and the buffer protection rod 49 passes through the bending The middle rod portion 404 of the buffer plate 47, the upper end of the bending buffer plate 47 is hinged on the first driving rod 442, and the lower end of the bending buffer plate 47 is hinged on the third rod body 402; the The connecting position of the second rod body 401 and the third rod body 402 is hinged on the concave connecting plate 46 , and the lower end of the concave connecting plate 46 is connected to the lifting rod body 21 .

Include the following steps:

The driving motor 42 provides power to drive the eccentric rotating disk 43 to continuously rotate. When the eccentric rotating disk 43 rotates eccentrically, it will correspondingly drive the driving disk body 44 to continuously swing. 44 When swinging, it will drive the first rod body 441 and the first driving rod 442 to move, and the first rod body 441 will reciprocally drive the bending and swinging rod 45 and the lifting rod body 21 to reciprocate. Lifting movement, so as to complete the pressing action for the mechanical workpiece 1 to be pressed on the basic platform 10;

When the reverse force generated by the lifting rod body 21 in the pressing action exceeds the set value, it will automatically drive the first driving rod 442 to swing downward, thereby causing the bending and swinging rod 45 to rotate around the intermediate shaft The close-to-storage folding will further compress and deform the buffer spring 48, thereby producing a buffer elastic protection effect, so that the pressing force of the user's hand entering the basic platform 10 by mistake is controlled within the protection limit.

In a preferred embodiment of the present invention, the image identifier signal is, for example, a passive infrared sensor, a human body proximity sensor, or other sensors in the prior art that can sense the human hand on the basic platform. The upper side of the hinge point of the overturning brake plate can be connected to the lifting rod body through a spring, that is, the lifting rod body is driven by the spring structure to engage and limit the lifting rod body. That is, the spring here is a reset function, that is, when the telescopic rod of the brake cylinder is far away, the overturned brake plate is driven to complete the engagement by the action of the spring. In another embodiment, the extension rod of the brake cylinder can directly engage and disengage the engaging groove on the side portion.

Claims (3)

1. a real-time monitoring and early warning system for machining operations, is characterized in that, comprising: Basic platform for placing mechanical workpieces to be pressed; a punching structure, disposed above the basic platform, the punching structure repeatedly moves to the basic platform and completes the pressing action on the mechanical workpiece; an image recognizer, arranged on the punching structure, the image recognizer is used to recognize the image signal of the user's hand on the basic platform; An analysis controller, signally connected to the image recognizer, the analysis controller has a time comparison module, the time comparison module has a standard time, and the standard time is that the image signal of the hand is on the basic platform Standard stay time, the analysis controller is used to analyze and compare whether the actual stay time of the image signal of the user's hand on the basic platform exceeds the standard time; A safety protection device is arranged on the stamping structure, the safety protection device is connected with the analysis controller, and the analysis controller starts the safety protection device to work in an emergency; The motion and time of the hand on the basic platform are sensed to obtain relevant signals, and these signals are transmitted to the analysis controller. The analysis controller judges whether the time of the hand on the basic platform exceeds the predetermined time according to the comparison, and starts when it exceeds the predetermined time. Safety protection devices are used to protect the equipment to avoid injury to the user; The basic platform includes a support table, a vertical connection plate, a vertical chute, a pressing table, a spring structure, and a vertical installation plate, and the vertical connection plate and the vertical installation plate are both arranged on the support table , the vertical chute is arranged on the vertical connecting plate, the bottom of the pressing table is provided with the spring structure, and the bottom of the spring structure is also connected to the support table; The punching structure includes a lifting rod body and a lifting punching block, the lifting punching block is arranged in the vertical chute, and both sides of the lifting punching block are also slidably arranged in the vertical sliding slot through guide rods. on the side wall; The safety protection device includes a brake cylinder, a brake plate, a turning brake plate, and a hinged installation plate, the hinged installation plate is arranged on the side of the pressing table, and the turning brake plate is hinged on the hinged installation. In the plate, the bottom of the overturned brake plate is in contact with the brake plate adjacently through a transverse driving rod, the brake plate is connected with the brake cylinder through a telescopic rod, and the top of the overturned brake plate is in contact with the brake plate. The engaging plate is detachably engaged in the side engaging groove of the lifting punching block by turning over the engaging plate; Both ends of the pressing table are provided with auxiliary installation plates, and the auxiliary installation plates are hingedly arranged with flip-up snap plates. The rotating shafts of the overturning brake plates are connected, and the first bending crank, the oblique crank and the second bending crank are hinged and connected in sequence. 2 . The real-time monitoring and early warning system for machining operations according to claim 1 , further comprising an auxiliary protection structure, wherein the auxiliary protection structure has a vertical support rod, a drive motor, an eccentric rotating disk, a driving disk body, a bending A folding and swinging rod, a concave connecting plate, a bending buffer plate, a buffer spring, a buffering protection rod, and a buffering and protection frame body, the driving disc body has a first rod body and a first driving rod, and the bending and swinging rods are connected in sequence. The second rod body and the third rod body, the driving disk body is sleeved on the eccentric rotating disk, the eccentric rotating disk is connected with the driving motor, the first rod body and the second rod body are hingedly connected, and the hinged connection The buffer protection frame body is hingedly arranged at the connection position, the buffer protection frame body is connected with the buffer spring through the buffer protection rod, and the buffer protection rod passes through the middle rod portion of the bending buffer plate, so The upper end of the bending buffer plate is hinged on the first driving rod, and the lower end of the bending buffer plate is hinged on the third rod body; the connection position of the second rod body and the third rod body is hinged on the The concave connecting plate is connected to the lifting rod body at the lower end of the concave connecting plate. 3. the early-warning method of the real-time monitoring early-warning system of machining operation according to claim 2, is characterized in that, comprises the following steps: S1: The user repeatedly puts the mechanical workpiece to be pressed onto the basic platform by hand, and then completes the pressing action for the mechanical workpiece to be pressed on the basic platform through the punching structure, and then the user puts the mechanical workpiece to be pressed on the basic platform through the hand. The pressed mechanical workpiece is taken away from the base platform; S2: The image recognizer obtains an image of the user's hand extending into the basic platform, and calculates the actual stay time of the user's hand on the basic platform; the analysis controller uses the The comparison module compares the actual residence time with the specification time, and when the actual residence time exceeds the preset range, the installation protection device is activated, and the installation protection device performs the pressing action of the stamping structure on the basic platform. protection for the safety of the user's hands; The safety protection device has a working state and a safety control state. In the safety control state, the flipping engaging plate at the upper end of the flipping brake plate is engaged in the side engaging groove, so that the The lifting and punching block forms an integral structure with the pressing table below. When the lifting and punching block moves downward, it will correspondingly drive the overturning brake plate and the pressing table to move downward, and correspondingly compress the spring structure below. deformation, and since the pressing table will follow the lifting and pressing block to move downward, the user's hand between the pressing table and the lifting and pressing block plays a protective role; in the working state, the overturning The overturning engaging plate at the upper end of the moving plate is in a separated state from the side engaging groove, and the brake cylinder drives the rod laterally to the bottom of the overturning braking plate through the telescopic rod and the braking plate. Pressing is performed to separate the inversion engaging plate at the upper end of the inversion braking plate from the side engaging groove. At this time, when the lifting stamping block is pressed down, the mechanical workpiece to be pressed will be completed on the basic platform. the pressing action; It also includes the following steps: when the overturning brake plate performs the overturning hinge movement, the second bending crank, the oblique crank and the first bending crank are correspondingly driven by the rotating shaft to move, and then Separating or engaging the flip-over engaging plate on the accessory mounting plate from the side engaging groove; Also includes the following steps: The drive motor provides power to drive the eccentric rotating disk to continuously rotate, and the eccentric rotating disk will correspondingly drive the driving disk body to continuously swing when it rotates eccentrically, and the driving disk body is oscillating. At the same time, it will drive the first rod body and the first driving rod to move, and the first rod body will reciprocally drive the bending and swing rod and the lifting rod body to reciprocate up and down, so as to complete the operation of the basic platform. The pressing action of the mechanical workpiece to be pressed on the machine; When the reverse force generated by the lifting rod body during the pressing action exceeds the set value, it will automatically drive the first driving rod to swing downward, so that the bending and swinging rod will move closer to the intermediate shaft for storage. Folding will further compress and deform the buffer spring, thereby producing a buffer elastic protection effect, so that the pressing force of the user's hand entering the basic platform by mistake is controlled within the protection limit.

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