Two-plate machine band-type brake device and band-type brake method thereof

Abstract

The invention relates to a two-plate machine band-type brake device and a band-type brake method thereof, and belongs to the technical field of two-plate machine band-type brake. The two-plate machine band-type brake method comprises the steps that in the first direction, a driving unit drives a first band-type brake nut to move, and the first band-type brake nut drives a second band-type brake nut to move; the second band-type brake nut I is close to and contacted with the second band-type brake nut II; meanwhile, the linkage unit drives a second band-type brake nut to move, the second band-type brake nut drives a second first band-type brake nut to move, so that the second first band-type brake nut is close to and makes contact with the first band-type brake nut, the first distance is switched to the third distance, the second distance is switched to the fourth distance, and switching from the first operation position to the second operation position is achieved; or the second operation position is switched to the first operation position. According to the invention, the opening and closing synchronization of the double-band-type brake nut can be realized.

Description

Technical Field

[0001] The present invention application relates to the technical field of toggle press brakes, and in particular to a toggle press brake device and a braking method thereof. Background Art

[0002] In the modern technical field of toggle presses, the brake device is a key component to ensure the normal operation and safety of the toggle press. The brake device usually includes two brake nuts, and each brake nut realizes the opening and closing actions through a separate oil cylinder. This brake nut structure is simple and easy to implement. However, with the continuous improvement of the requirements for industrial automation and high-efficiency production, some problems have emerged in the actual operation of the traditional brake nut oil cylinder system. The technical problem that the two oil cylinders cannot be completely synchronized during the opening and closing processes is particularly prominent. The above technical problems are usually caused by multiple factors such as the hydraulic system and the control system.

[0003] First of all, in the double oil cylinder system, if the hydraulic pipeline design is unreasonable, especially the length, bend degree of the oil circuit and the connection method of the pipeline, it will cause the fluid resistance between the oil cylinders to be asymmetric, resulting in inconsistent actions of the oil cylinders. Different pressure losses will occur when the hydraulic oil flows through pipelines of different lengths and angles, resulting in uneven flow rates obtained by the two oil cylinders, so that one oil cylinder moves slower and the other moves faster, causing non-synchronization. At the same time, the hydraulic valve plays a crucial role in controlling the opening and closing of the oil cylinder. The response speed and accuracy of the hydraulic valve directly affect the synchronization of the oil cylinders. If there are design defects in the hydraulic valve itself or it is worn due to long-term use, the opening and closing speed, response time and flow regulation ability of the valve will be affected, which will directly cause the two oil cylinders to be unable to perform precise movements synchronously when receiving the same control signal, and even the oil cylinder actions may lag or advance, further exacerbating the non-synchronization problem of the double oil cylinders. In addition, the quality, viscosity and temperature change of the hydraulic oil also have a certain impact on the movement synchronization of the oil cylinders. When the quality of the hydraulic oil does not meet the standard or the oil temperature is too high, the viscosity of the oil will change, resulting in the actions of the oil cylinders being affected. Especially in a high-temperature environment, the viscosity of the hydraulic oil decreases and the fluidity increases, which may cause the oil cylinders to work unstably, and then non-synchronization problems occur.

[0004] In addition, the control system of the toggle press usually operates based on an electro-hydraulic system. Although the control system can theoretically send precise instructions, due to factors such as the transmission, processing of electronic signals and the response time of the hydraulic valve, there may be a time deviation in the operation signals of the two oil cylinders. When the control system issues instructions, due to processing delays or signal interference, there may be a small time difference in the control signals received by the two oil cylinders. This time difference not only causes the oil cylinder actions to be non-synchronized, but also may cause the actuator of the oil cylinder to work in advance or delay, generating excessive mechanical shocks.

[0005] Obviously, when the working states of the two cylinders cannot be exactly the same, one cylinder is fully opened while the other is not fully opened. In this case, the control system may erroneously issue an instruction to continue the operation. At this time, the incompletely opened brake nut may become stuck with the pull rod, greatly reducing the operating efficiency of the equipment. Forcible movement may also cause damage to the pull rod or the brake nut, ultimately leading to mechanical failures in the second platen machine, which not only affects the production progress of the second platen machine but may also cause serious economic losses and personal injuries. Moreover, the researchers have not discovered the possible decline in the synchronization accuracy of the second platen machine brake after long-term operation. Therefore, intelligent and digital monitoring of the synchronization accuracy is highly necessary. Therefore, in the face of these technical problems, how to ensure the synchronization of the opening and closing of the double brake nuts has become an urgent technical problem in the braking process of the second platen machine. Summary of the Invention

[0006] The purpose of this invention application is to overcome the defects existing in the prior art and provide a braking device and a braking method for a second platen machine to partially or completely solve the technical problem of the asynchronous opening and closing of the existing double brake nuts. To achieve the above purpose, this invention application provides the following technical solutions:

[0007] In the first aspect, this invention application provides a braking device for a second platen machine, including: a driving unit, a linkage unit, a connecting rod unit, a first brake nut unit, and a second brake nut unit; the first brake nut unit includes a first brake nut 1 and a first brake nut 2, and the second brake nut unit includes a second brake nut 1 and a second brake nut 2; the connecting rod unit includes a first connecting rod group and a second connecting rod group, the first connecting rod group includes a first connecting rod 1 and a first connecting rod 2, and the second connecting rod group includes a second connecting rod 1 and a second connecting rod 2; the first connecting rod 1, the first connecting rod 2, the second connecting rod 1, and the second connecting rod 2 are all parallel to each other;

[0008] One side of the driving unit is connected to the first brake nut 1, and the other side of the driving unit is connected to the second brake nut 2. One side of the linkage unit is connected to the first brake nut 1, and the other side of the linkage unit is connected to the second brake nut 2; the first connecting rod 1 is connected to the first brake nut 1 and the second brake nut 1, and the second brake nut 2 slides on the first connecting rod 1; the first connecting rod 2 is connected to the first brake nut 2 and the second brake nut 2, and the first brake nut 1 slides on the first connecting rod 2; the second connecting rod 1 is connected to the first brake nut 2 and the second brake nut 2, and the first brake nut 1 slides on the second connecting rod 1; the second connecting rod 2 is connected to the first brake nut 1 and the second brake nut 1, and the second brake nut 2 slides on the second connecting rod 2;

[0009] The two-platen machine brake device includes a first working position and a second working position; when in the first working position, along the first direction, the first brake nuts I and II are separated by a first distance, and the second brake nuts I and II are separated by a second distance, and both the first distance and the second distance are not equal to 0; when in the second working position, along the first direction, the first brake nuts I and II are separated by a third distance, and the second brake nuts I and II are separated by a fourth distance, and both the third distance and the fourth distance are equal to 0.

[0010] Optionally, during the process of switching from the first working position to the second working position, along the first direction, the driving unit drives the first brake nut I to move, and the first brake nut I drives the second brake nut I to move, so that the second brake nut I approaches and contacts the second brake nut II; at the same time, the linkage unit drives the second brake nut II to move, and the second brake nut II drives the first brake nut II to move, so that the first brake nut II approaches and contacts the first brake nut I, and the first distance is switched to the third distance, and the second distance is switched to the fourth distance; during the process of switching from the second working position to the first working position, along the first direction, the driving unit drives the first brake nut I to move, and the first brake nut I drives the second brake nut I to move, so that the second brake nut I moves away from the second brake nut II; at the same time, the linkage unit drives the second brake nut II to move, and the second brake nut II drives the first brake nut II to move, so that the first brake nut II moves away from the first brake nut I, and the third distance is switched to the first distance, and the fourth distance is switched to the second distance.

[0011] Optionally, the driving unit includes a first connector, a connecting rod, a fastener, a piston rod, a piston sleeve, a piston cylinder, and a second connector. The first connector connects the first brake nut and the connecting rod, the connecting rod is connected to the piston rod through the fastener, the piston sleeve is installed on the piston cylinder, the piston rod moves on the piston cylinder, the second connector connects the second brake nut II and the piston cylinder, and the piston cylinder is provided with an oil hole.

[0012] Optionally, the linkage unit includes a linkage disc, a first linkage rod, a first linkage mounting member, a second linkage rod, and a second linkage mounting member. One side of the first linkage rod is connected to the linkage disc, and the other side of the first linkage rod is connected to the first linkage mounting member, and the first linkage mounting member is connected to the first brake nut; one side of the second linkage rod is connected to the linkage disc, and the other side of the second linkage rod is connected to the second linkage mounting member, and the second linkage mounting member is connected to the second brake nut II. The linkage disc includes a first linkage plate, a second linkage plate, and a fastening member. The end of one side of the first linkage rod is located between the first linkage plate and the second linkage plate, and the end of one side of the first linkage rod is connected to the first linkage plate and the second linkage plate. The end of one side of the second linkage rod is located between the first linkage plate and the second linkage plate, and the end of one side of the second linkage rod is connected to the first linkage plate and the second linkage plate. The first linkage plate and the second linkage plate are connected through the fastening member.

[0013] Optionally, one end of the first link 1 is connected to the first brake nut 1 through the first fastener 1, and the other end of the first link 1 is connected to the second brake nut 1 through the second fastener 1; one end of the first link 2 is connected to the first brake nut 2 through the second fastener 1, and the other end of the first link 2 is connected to the second brake nut 2 through the second fastener 2; one end of the second link 1 is connected to the first brake nut 2 through the third fastener 1, and the other end of the second link 1 is connected to the second brake nut 2 through the third fastener 2; one end of the second link 2 is connected to the first brake nut 1 through the fourth fastener 1, and the other end of the second link 2 is connected to the second brake nut 1 through the fourth fastener 2.

[0014] In a second aspect, the present invention application provides a toggle press brake method, adopting a toggle press brake device according to any one of the above first aspects, including:

[0015] Step S10: At the first working position, along the first direction, the first brake nut 1 and the first brake nut 2 are separated by a first distance, the second brake nut 1 and the second brake nut 2 are separated by a second distance, and both the first distance and the second distance are not equal to 0;

[0016] Step S20: Along the first direction, the driving unit drives the first brake nut 1 to move, and the first brake nut 1 drives the second brake nut 1 to move, so that the second brake nut 1 approaches and contacts the second brake nut 2; at the same time, the linkage unit drives the second brake nut 2 to move, and the second brake nut 2 drives the first brake nut 2 to move, so that the first brake nut 2 approaches and contacts the first brake nut 1, the first distance is switched to a third distance, and the second distance is switched to a fourth distance, so as to realize the switching from the first working position to the second working position;

[0017] Step S30: At the second working position, along the first direction, the first brake nut 1 and the first brake nut 2 are separated by a third distance, the second brake nut 1 and the second brake nut 2 are separated by a fourth distance, and both the third distance and the fourth distance are equal to 0.

[0018] Optionally, after step S30, there is also step S40: Along the first direction, the driving unit drives the first brake nut 1 to move, and the first brake nut 1 drives the second brake nut 1 to move, so that the second brake nut 1 moves away from the second brake nut 2; at the same time, the linkage unit drives the second brake nut 2 to move, and the second brake nut 2 drives the first brake nut 2 to move, so that the first brake nut 2 moves away from the first brake nut 1, the third distance is switched to the first distance, and the fourth distance is switched to the second distance.

[0019] Optionally, the first working position is the initial working position of the toggle press brake device, and the second working position is the working stop position of the toggle press brake device.

[0020] In summary, the present invention application has the following beneficial technical effects:

[0021] (1) In the present invention application, through the joint cooperation of the driving unit, the connecting rod unit, and the linkage unit, the synchronization and stability of the first brake unit and the second brake unit are optimized, enabling the first brake nut and the second brake nut to work synchronously and stably during the braking process. This simplifies the structure of multiple hydraulic pipelines, reduces complex oil circuits and hydraulic valve components, lowers the maintenance cost of the hydraulic system of the two-platen machine, improves the stability and reliability of the two-platen machine, and enhances the intelligence, digitization, long-term synchronization performance, and working life of the brake device of the two-platen machine.

[0022] (2) In the present invention application, through the joint cooperation of the driving unit, the linkage unit, and the connecting rod unit, it is possible to smoothly switch back from the second working position to the first working position, or smoothly switch back from the first working position to the second working position. During the entire switching process, the brake device of the two-platen machine works safely and stably. The flexible switching between different working positions meets the requirements of diverse production environments and different working conditions, improving the adaptability and versatility of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a schematic structural diagram of the brake device of the two-platen machine of the present invention application Figure 1 ;

[0024] Figure 2 is a schematic structural diagram of the brake device of the two-platen machine of the present invention application Figure 2 ;

[0025] Figure 3 is a schematic structural diagram of the brake device of the two-platen machine of the present invention application Figure 3 ;

[0026] Figure 4 is a schematic structural diagram of the brake device of the two-platen machine of the present invention application Figure 4 ;

[0027] Figure 5 is a partial schematic structural diagram of the brake device of the two-platen machine of the present invention application Figure 1 ;

[0028] Figure 6 is a partial schematic structural diagram of the brake device of the two-platen machine of the present invention application Figure 2 ;

[0029] Figure 7 is a schematic flow chart of the brake method of the two-platen machine of the present invention application;

[0030] Figure 8 is a simplified principle schematic diagram of the driving parallelogram and the linkage parallelogram of the present invention application. Detailed implementation mode

[0031] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention application. However, it is obvious to those skilled in the art that the present invention application can be implemented without one or more of these details. In other examples, some technical features known to the art are not described to avoid confusion with the present invention application.

[0032] In a first aspect, a toggle clamp device for a two-platen machine includes: a driving unit 100, a linkage unit 200, a connecting rod unit, a first brake nut unit 400, and a second brake nut unit 500; the first brake nut unit 400 includes a first brake nut 401 and a second brake nut 402, and the second brake nut unit 500 includes a first brake nut 501 and a second brake nut 502; the connecting rod unit includes a first connecting rod group and a second connecting rod group, the first connecting rod group includes a first connecting rod 301 and a second connecting rod 302, and the second connecting rod group includes a first connecting rod 303 and a second connecting rod 304; the first connecting rod 301, the second connecting rod 302, the first connecting rod 303, and the second connecting rod 304 are all parallel to each other;

[0033] One side of the driving unit 100 is connected to the first brake nut 401, and the other side of the driving unit 100 is connected to the second brake nut 502. One side of the linkage unit 200 is connected to the first brake nut 401, and the other side of the linkage unit 200 is connected to the second brake nut 502; the first connecting rod 301 is connected to the first brake nut 401 and the first brake nut 501, and the second brake nut 502 slides on the first connecting rod 301; the second connecting rod 302 is connected to the second brake nut 402 and the second brake nut 502, and the first brake nut 401 slides on the second connecting rod 302; the first connecting rod 303 is connected to the second brake nut 402 and the second brake nut 502, and the first brake nut 401 slides on the first connecting rod 303; the second connecting rod 304 is connected to the first brake nut 401 and the first brake nut 501, and the second brake nut 502 slides on the second connecting rod 304;

[0034] The toggle clamp device for a two-platen machine includes a first working position and a second working position; when in the first working position, along a first direction, the first brake nut 401 and the second brake nut 402 are separated by a first distance, and the first brake nut 501 and the second brake nut 502 are separated by a second distance, and both the first distance and the second distance are not equal to 0; when in the second working position, along the first direction, the first brake nut 401 and the second brake nut 402 are separated by a third distance, and the first brake nut 501 and the second brake nut 502 are separated by a fourth distance, and both the third distance and the fourth distance are equal to 0.

[0035] In some embodiments, when in the first working position, the first brake nut 1-401 and the first brake nut 2-402 are separated by a first distance, and the second brake nut 1-501 and the second brake nut 2-502 are separated by a second distance, and both the first distance and the second distance are not equal to 0; when in the second working position, along the first direction, the first brake nut 1-401 and the first brake nut 2-402 are separated by a third distance, and the second brake nut 1-501 and the second brake nut 2-502 are separated by a fourth distance, and both the third distance and the fourth distance are equal to 0. Thus, when in the second working position, the first brake nut 1-401 and the first brake nut 2-402 can clamp the external pull rod, and the second brake nut 1-501 and the second brake nut 2-502 can clamp the external pull rod, thereby realizing the brake function of the two-platen machine.

[0036] In the brake device of the two-platen machine of the present invention application, through the common cooperation of the driving unit, the link unit, and the linkage unit, the synchronism and stability of the first brake unit and the second brake unit are optimized, so that the first brake nut and the second brake nut can work synchronously and stably during the brake operation, simplify the structure of multiple hydraulic pipelines, reduce complex oil circuits and hydraulic valve parts, reduce the maintenance cost of the hydraulic system of the two-platen machine, and improve the stability and reliability of the two-platen machine.

[0037] Optionally, during the process of switching from the first working position to the second working position, along the first direction, the driving unit 100 drives the first brake nut 1-401 to move, and the first brake nut 1-401 drives the second brake nut 1-501 to move, so that the second brake nut 1-501 approaches and contacts the second brake nut 2-502; at the same time, the linkage unit 200 drives the second brake nut 2-502 to move, and the second brake nut 2-502 drives the first brake nut 2-402 to move, so that the first brake nut 2-502 approaches and contacts the first brake nut 1-401, and the first distance is switched to the third distance, and the second distance is switched to the fourth distance; during the process of switching from the second working position to the first working position, along the first direction, the driving unit 100 drives the first brake nut 1-401 to move, and the first brake nut 1-401 drives the second brake nut 1-501 to move, so that the second brake nut 1-501 moves away from the second brake nut 2-502; at the same time, the linkage unit 200 drives the second brake nut 2-502 to move, and the second brake nut 2-502 drives the first brake nut 2-402 to move, so that the first brake nut 2-502 moves away from the first brake nut 1-401, and the third distance is switched to the first distance, and the fourth distance is switched to the second distance.

[0038] In some embodiments, the first brake nut 401 can slide on the first guide block 1001 and the second guide block 1002, the second brake nut 402 can slide on the first guide block 1001 and the second guide block 1002, the first second brake nut 501 can slide on the third guide block 1003 and the fourth guide block 1004, the second second brake nut 502 can slide on the third guide block 1003 and the fourth guide block 1004. The first guide block 1001, the second guide block 1002, the third guide block 1003, and the fourth guide block 1004 are all in an inverted L shape or a straight shape, etc. The present invention application does not particularly limit the shapes of the first guide block 1001, the second guide block 1002, the third guide block 1003, and the fourth guide block 1004.

[0039] In some embodiments, when switching from the first working position to the second working position, the driving unit 100 first drives the first brake nut 401 to move along the first direction. At the same time, the first brake nut 401 drives the first second brake nut 501 to move forward together. The first second brake nut 501 slides on the third guide block 1003 and the fourth guide block 1004. Through this driving and linkage method, the first second brake nut 501 approaches and contacts the second second brake nut 502, realizing the precise cooperation between the first brake nut unit 400 and the second brake nut unit 500. During this process, at the same time, the linkage unit 200 drives the second second brake nut 502 to move forward and drives the second brake nut 402 to move together. The second brake nut 402 slides on the first guide block 1001 and the second guide block 1002. The synchronous linkage enables the second brake nut 402 to approach and contact the first brake nut 401, so as to realize the precise switching of the first distance and the second distance when switching from the first working position to the second working position, that is, the first distance is switched to the third distance, and the second distance is switched to the fourth distance. Similarly, when switching back from the second working position to the first working position, the driving unit 100 reversely drives the first brake nut 401 and drives the first second brake nut 501 to move away from the second second brake nut 502 together. The linkage unit 200 drives the second second brake nut 502 to move reversely and drives the second brake nut 402 to move away from the first brake nut 401 together, so as to realize the switching of the third distance to the first distance and the fourth distance to the second distance.

[0040] Thus, in the present invention application, the toggle clamp brake device of the toggle press can achieve precise switching between the first working position and the second working position, avoiding mechanical shocks and damages caused by non-synchronization. At the same time, the precise cooperation between the driving unit and the linkage unit ensures that the working state of the equipment is more stable at different working positions, prolongs the service life of the equipment, reduces the maintenance cost, meets the requirements of modern industrial automation production lines for high-efficiency and stable equipment, and has a wide application prospect.

[0041] Optionally, the driving unit 100 includes a first connector 101, a connecting rod 102, a fastener 103, a piston rod 104, a piston sleeve 105, a piston cylinder 106, and a second connector 107. The first connector 101 connects the first brake nut 401 and the connecting rod 102. The connecting rod 102 connects the piston rod 104 through the fastener 103. The piston sleeve 105 is installed on the piston cylinder 106. The piston rod 104 moves on the piston cylinder 106. The second connector 107 connects the second brake nut 502 and the piston cylinder 106. The piston cylinder 106 is provided with an oil hole.

[0042] In some embodiments, the first connector 101 is connected to the first brake nut 401 and the connecting rod 102. The connecting rod 102 is connected to the piston rod 104 through the fastener 103. The piston rod 104 can reciprocate within the piston cylinder 106, thereby driving the movement of the first brake nut 401. The piston cylinder 106 can be provided with a plurality of oil holes. By controlling the inflow and outflow of hydraulic oil through the oil holes, the moving speed and position of the piston rod 104 can be adjusted, so that the first brake nut 401 can be accurately moved to a predetermined position. The second connector 107 is then connected to the second brake nut 502 and the piston cylinder 106 to ensure that the movement of the second brake nut 502 is synchronized with that of the piston rod 104.

[0043] Thus, in the present invention application, the structure of the driving unit 100 is compact and easy to install, and precise motion control is achieved through the cooperation of the piston rod and the piston cylinder. The reciprocating motion of the piston rod enables the brake nut to move more smoothly, and can quickly and accurately switch between the first working position and the second working position, avoiding mechanical damage and equipment shutdown caused by non-synchronization, and improving work efficiency and equipment reliability.

[0044] Optionally, the linkage unit 200 includes a linkage disk 201, a first linkage rod 202, a first linkage mounting member 203, a second linkage rod 204, a second linkage mounting member 205. One side of the first linkage rod 201 is connected to the linkage disk 201, and the other side of the first linkage rod 201 is connected to the first linkage mounting member 203. The first linkage mounting member 203 is connected to the first brake nut 401. One side of the second linkage rod 204 is connected to the linkage disk 201, and the other side of the second linkage rod 204 is connected to the second linkage mounting member 205. The second linkage mounting member 205 is connected to the second brake nut 502. The linkage disk 201 includes a first linkage plate 2011, a second linkage plate 2012 and a fastening member 2013. The end of one side of the first linkage rod 201 is located between the first linkage plate 2011 and the second linkage plate 2012, and the end of one side of the first linkage rod 201 is connected to the first linkage plate 2011 and the second linkage plate 2012. The end of one side of the second linkage rod 204 is located between the first linkage plate 2011 and the second linkage plate 2012, and the end of one side of the second linkage rod 204 is connected to the first linkage plate 2011 and the second linkage plate 2012. The first linkage plate 2011 and the second linkage plate 2012 are connected by the fastening member 2013.

[0045] In some embodiments, the fastening member 2013 on the linkage disk 201 ensures the firm connection between the first linkage plate 2011 and the second linkage plate 2012, avoids the loosening of components, and thus improves the stability of the linkage unit 200.

[0046] In some embodiments, the ends of one side of the first linkage rod 201 and the ends of one side of the second linkage rod 204 are both connected to the first linkage plate 2011 and the second linkage plate 2012 of the linkage disk, so that the first linkage rod 202 and the second linkage rod 204 can smoothly transmit torque under the action of the linkage disk 201, ensuring the linkage of the first linkage rod 202 and the second linkage rod 204. At the same time, the first linkage mounting member 203 and the second linkage mounting member 205 are respectively connected to the first brake nut 401 and the second brake nut 502, ensuring stable drive of the first brake nut 402 and the second brake nut 501 during synchronous operation.

[0047] In the present invention application, the design of the linkage disk precisely connects the two brake nuts through the linkage rods, realizes the precise transmission between components, ensures the synchronous action when switching between different working positions, avoids the problem of asynchronous brake nuts. The linkage rods, linkage plates, etc. all adopt modular design, which is convenient for overall installation and disassembly, reduces the maintenance difficulty, can quickly replace damaged parts, reduces the downtime of the equipment, and can effectively transmit the output power of the drive unit to the brake nuts, ensuring the normal operation of the two-plate machine brake device.

[0048] Optionally, the first working position is the initial working position of the toggle clamp device of the two-platen machine, and the second working position is the stop working position of the toggle clamp device of the two-platen machine.

[0049] In the application of the present invention, the first working position is set as the initial working position of the toggle clamp device of the two-platen machine. When the toggle clamp device of the two-platen machine is started, the first brake nut unit and the second brake nut unit can quickly cooperate to enter the initial state, laying a foundation for the subsequent braking work of the toggle clamp device of the two-platen machine; the second working position is set as the stop working position of the toggle clamp device of the two-platen machine. During the working process of the toggle clamp device of the two-platen machine, when the second working position is the stop working position of the toggle clamp device of the two-platen machine, the stop working position can be the intermediate stop position where the toggle clamp device of the two-platen machine has not completed braking, so that specific manual intervention can be performed on different states of the brake nut in specific situations, such as when manual maintenance of the brake nut is required; the stop working position can also be the end working position where the toggle clamp device of the two-platen machine has completed braking. Thus, the design of such working positions improves the working flexibility, practical correspondence, and automation degree of the toggle clamp device of the two-platen machine.

[0050] Optionally, one end of the first link 301 is connected to the first brake nut 401 through the first fastener 3411, and the other end of the first link 301 is connected to the second brake nut 501 through the second fastener 3412; one end of the second link 302 is connected to the first brake nut 402 through the second fastener 3421, and the other end of the second link 302 is connected to the second brake nut 502 through the second fastener 3422; one end of the second link 303 is connected to the first brake nut 402 through the third fastener 3431, and the other end of the second link 303 is connected to the second brake nut 502 through the third fastener 3432; one end of the second link 304 is connected to the first brake nut 401 through the fourth fastener 3441, and the other end of the second link 304 is connected to the second brake nut 501 through the fourth fastener 3442.

[0051] In the present invention application, first of all, by using a plurality of fasteners (such as the first fastener 3411, the second fastener 3412, etc.) to firmly connect the connecting rod with the brake nut unit, it is possible to ensure the close fit between various components, avoid loosening or errors during long-term operation, and the connection between various components is more flexible, enabling fine adjustment according to actual needs. This not only facilitates maintenance and repair, but also can adjust the fastening degree of components according to different operation requirements, increasing the adaptability of the toggle press brake device; in addition, using a standardized fastener connection method makes the assembly and disassembly process of the equipment simpler, reduces the complexity of manual operation, improves production efficiency, is especially suitable for industrial environments that require rapid repair and maintenance, reduces maintenance costs, and provides guarantee for efficient operation in complex industrial applications.

[0052] In the present invention application, although the synchronization and stability of the first brake unit and the second brake unit are optimized through the combined cooperation of the drive unit, the connecting rod unit, and the linkage unit, after the toggle press brake device has been working for a long time, the movement friction, uneven force, or load change of the drive unit, the connecting rod unit, and the linkage unit will affect the synchronization accuracy of the toggle press brake device. Therefore, the applicant has discovered the control technical problem of synchronization accuracy and correspondingly proposed the following synchronization accuracy calculation solution.

[0053] Optionally, the toggle press brake device includes: a first synchronization index S1, a second synchronization index S2, a third synchronization index S3, and a synchronization index S. The first synchronization index S1, the second synchronization index S2, the third synchronization index S3, and the synchronization index S are respectively:

[0054] S1 = SD / SF;

[0055] S2 = Sinθ1 / Sinθ2 - Sinθ3 / Sinθ4;

[0056] S3 = Sinθ1 / Sinθ3 - Sinθ2 / Sinθ4;

[0057] S = (S2 + S3) / (S1 - |S2| - |S3|);

[0058] Among them, SD is the area of the driving parallelogram D. The driving parallelogram D includes a first long side LD1, a second long side LD2, a first short side LW1, and a second short side LW2. The first long side LD1 is parallel to the second long side LD2, and the first short side LW1 is parallel to the second short side LW2. The length of the first long side LD1 is the distance from the center of the end part of the first fastener 3411 to the center of the end part of the second fastener 3412 along the first direction; the length of the second long side LD2 is the distance from the center of the end part of the first fastener 3421 to the center of the end part of the second fastener 3422 along the first direction; the length of the first short side LW1 is the distance from the center of the end part of the first fastener 3411 to the center of the end part of the second fastener 3421, and the length of the second short side LW2 is the distance from the center of the end part of the first fastener 3412 to the center of the end part of the second fastener 3422; θ1 is the included angle between the second long side LD2 and the first short side LW1, and θ2 is the included angle between the first long side LD1 and the second short side LW2;

[0059] SF is the area of the linkage parallelogram F. The linkage parallelogram F includes a third long side LD3, a fourth long side LD4, a third short side LW3, and a fourth short side LW4. The third long side LD3 is parallel to the fourth long side LD4, and the third short side LW3 is parallel to the fourth short side LW4. The length of the third long side LD3 is the distance from the center of the end part of the first fastener 3431 to the center of the end part of the second fastener 3432 along the first direction; the length of the fourth long side LD4 is the distance from the center of the end part of the first fastener 3441 to the center of the end part of the second fastener 3442 along the first direction; the length of the third short side LW3 is the distance from the center of the end part of the first fastener 3431 to the center of the end part of the fourth fastener 3441, and the length of the fourth short side LW4 is the distance from the center of the end part of the second fastener 3432 to the center of the end part of the fourth fastener 3442; θ3 is the included angle between the third long side LD2 and the third short side LW1, and θ4 is the included angle between the fourth long side LD1 and the fourth short side LW4.

[0060] In some embodiments, the driving parallelogram D includes a first long side LD1, a second long side LD2, a first short side LW1, and a second short side LW2. The first long side LD1 is parallel to the second long side LD2, and the first short side LW1 is parallel to the second short side LW2. The length of the first long side LD1 is the distance from the center of the end portion of the first fastener 3411 to the center of the end portion of the second fastener 3412 along the first direction; the length of the second long side LD2 is the distance from the center of the end portion of the first fastener 3421 to the center of the end portion of the second fastener 3422 along the first direction; the length of the first short side LW1 is the distance from the center of the end portion of the first fastener 3411 to the center of the end portion of the second fastener 3421, and the length of the second short side LW2 is the distance from the center of the end portion of the first fastener 3412 to the center of the end portion of the second fastener 3422; θ1 is the included angle between the second long side LD2 and the first short side LW1, and θ2 is the included angle between the first long side LD1 and the second short side LW2;

[0061] In some embodiments, the linkage parallelogram F includes a third long side LD3, a fourth long side LD4, a third short side LW3, and a fourth short side LW4. The third long side LD3 is parallel to the fourth long side LD4, and the third short side LW3 is parallel to the fourth short side LW4. The length of the third long side LD3 is the distance from the center of the end portion of the first fastener 3431 to the center of the end portion of the second fastener 3432 along the first direction; the length of the fourth long side LD4 is the distance from the center of the end portion of the first fastener 3441 to the center of the end portion of the second fastener 3442 along the first direction; the length of the third short side LW3 is the distance from the center of the end portion of the first fastener 3431 to the center of the end portion of the fourth fastener 3441, and the length of the fourth short side LW4 is the distance from the center of the end portion of the second fastener 3432 to the center of the end portion of the fourth fastener 3442; θ3 is the included angle between the third long side LD2 and the third short side LW1, and θ4 is the included angle between the fourth long side LD1 and the fourth short side LW4.

[0062] On this basis, the toggle press brake device may include synchronization data, and the synchronization data includes: a first synchronization index S1, a second synchronization index S2, a third synchronization index S3, and a synchronization index S. Only by simply measuring (such as multiple pairs of relative position sensors, etc.) to obtain the position conditions of the first link one, the first link two, the second link one, and the second link two, the first synchronization index S1, the second synchronization index S2, the third synchronization index S3, and the synchronization index S can be accurately calculated. The first synchronization index S1, the second synchronization index S2, the third synchronization index S3, and the synchronization index S are respectively:

[0063] S1 = SD / SF;

[0064] S2 = Sinθ1 / Sinθ2 - Sinθ3 / Sinθ4;

[0065] S3 = Sinθ1 / Sinθ3 - Sinθ2 / Sinθ4;

[0066] S = (S2 + S3) / (S1 - |S2| - |S3|);

[0067] In the application of the present invention, exemplarily, when 0 ≤ S < 0.1, it can be considered that the brake device of the toggle press runs normally and the synchronization is good; when S > 0.1, it can be considered that there is a risk of poor running synchronization of the brake device of the toggle press. First, S1 = SD / SF ensures the optimization of the geometric relationship between the driving parallelogram and the linkage parallelogram, thereby improving the uniformity of motion linkage and load distribution and enhancing the reliability of the brake device of the toggle press; second, the second synchronization index S2 and the third synchronization index S3 consider the changes of each angle, and S1 considers the overall synchronization accuracy, making the relative motion between the whole and components of the brake device of the toggle press more accurate, effectively improving the synchronization accuracy of each component in the brake device. The calculation of the synchronization index is closely related to the geometric parameters of the driving parallelogram and the linkage parallelogram. Precise control of these factors can ensure the coordinated work between different components, thereby enhancing the operation efficiency and stability of the whole device.

[0068] Optionally, the brake device of the toggle press includes: the first synchronization reference index S1p, the second synchronization reference index S2p, and the synchronization reference index SP. The synchronization reference index SP is:

[0069] S1p = cos(θ1 - θ2) / cos(θ3 - θ4) - cos(θ1 - θ3) / cos(θ2 - θ4);

[0070] S2p = LD1 / LD2 + LW1 / LW2 - LD3 / LD4 - LW3 / LW4;

[0071] SP = (|S1p| - |S2p|) / (1 + |S1p| + |S2p|);

[0072] In the application of the present invention, in the brake device of the toggle press, introducing the first synchronization reference index S1p, the second synchronization reference index S2p, and the synchronization reference index SP can help further optimize the synchronization, coordination, and stability of the brake device of the toggle press, ensuring the precise cooperation between each moving component. The following is the analysis of each synchronization reference index and the summary of its advantages and effects:

[0073] In the first synchronous reference index S1p, the first synchronous reference index S1p involves the differences and their cosine values of four angles, representing the influence of the angular relationships between the components in the brake device on the synchronous performance. By controlling these angles, the first synchronous reference index S1p helps to balance the motion synchronism between the components, ensuring that they can move precisely along the predetermined path, thereby avoiding unbalanced motion, vibration or excessive wear caused by inappropriate angles.

[0074] In the second synchronous reference index S2p, the second synchronous reference index S2p reflects the influence of the changes in the geometric shape of the drive and linkage systems on the motion synchronism by considering the ratios between different long sides and short sides. By controlling these ratios, the motion performance of the entire toggle press brake device can be optimized, making the motion between the components more synchronous, thereby improving the stability and motion accuracy of the toggle press brake device.

[0075] In the synchronous reference index SP, the synchronous reference index SP is a comprehensive factor obtained by integrating the first synchronous reference index S1p and the second synchronous reference index S2p, and can accurately measure the synchronous performance of the entire toggle press brake device during operation. The closer the value of SP is to 0, the better the synchronism of the toggle press brake device, reducing the lag and deviation during the motion process.

[0076] Optionally, the toggle press brake device includes: a dynamic synchronous calibration index SSP, and the dynamic synchronous calibration index SSP is: SSP = (1 + S) / (1 - SP).

[0077] In some embodiments, in the toggle press brake device, the dynamic synchronous calibration index SSP can further intelligently evaluate the overall synchronism of the toggle press brake device by combining the previously mentioned synchronism index S and the synchronous reference index SP. Exemplarily, when 1 ≤ SSP < 1.15, it can be considered that the toggle press brake device is operating normally and the synchronous situation is good; when SSP > 1.15, it can be considered that there is a risk of deteriorated operation synchronism of the toggle press brake device, and then the toggle press brake device can be maintained to make the synchronism index S, the synchronous reference index SP and the dynamic synchronous calibration index SSP meet the expected range, thereby improving the operation synchronous accuracy of the toggle press brake device.

[0078] In the present invention application, initially, the synchronization index S can be used to calculate the starting synchronization condition of the toggle clamp device of the two-platen machine. However, after the toggle clamp device of the two-platen machine has worked multiple times, the synchronization reference index SP can be used to calculate the synchronization condition after the toggle clamp device of the two-platen machine has worked, and the dynamic synchronization calibration index SSP can be calculated simultaneously. Furthermore, the amplitude deviation and error of the toggle clamp device of the two-platen machine can be dynamically detected by comparison, so as to achieve more precise synchronization control of the toggle clamp device of the two-platen machine, improve the synchronization, stability and reliability of the toggle clamp device of the two-platen machine after long-term operation, reduce the maintenance cost of the toggle clamp device of the two-platen machine, and improve the intelligence, digitization, long-term synchronization performance and service life of the toggle clamp device of the two-platen machine.

[0079] In a second aspect, the present invention application provides a method for the toggle clamp of a two-platen machine, which adopts or does not adopt the toggle clamp device described in any one of the above. The method includes the following steps:

[0080] Step S10: At the first working position, along the first direction, the first toggle nut one 401 and the first toggle nut two 402 are separated by a first distance, and the second toggle nut one 501 and the second toggle nut two 502 are separated by a second distance. Both the first distance and the second distance are not equal to 0.

[0081] Step S20: Along the first direction, the driving unit 100 drives the first toggle nut one 401 to move. The first toggle nut one 401 drives the second toggle nut one 501 to move, so that the second toggle nut one 501 approaches and contacts the second toggle nut two 502. At the same time, the linkage unit 200 drives the second toggle nut two 502 to move. The second toggle nut two 502 drives the first toggle nut two 402 to move, so that the first toggle nut two 502 approaches and contacts the first toggle nut one 401. The first distance is switched to a third distance, and the second distance is switched to a fourth distance, so as to realize the switching from the first working position to the second working position.

[0082] Step S30: At the second working position, along the first direction, the first toggle nut one 401 and the first toggle nut two 402 are separated by a third distance, and the second toggle nut one 501 and the second toggle nut two 502 are separated by a fourth distance. Both the third distance and the fourth distance are equal to 0.

[0083] In some embodiments, in step S20, the driving unit 100 provides an appropriate driving force to properly control the relative movement of the first toggle nut two 402 and the second toggle nut one 501, so that the first toggle nut two 402 approaches and contacts the first toggle nut one 401, and the second toggle nut two 502 approaches and contacts the first toggle nut two 402, so as to make the first toggle unit 400 and the second toggle unit 500 work synchronously as much as possible.

[0084] In some embodiments, in step S30, the toggle device of the two-platen machine is in the second working position. The first brake nut 1 401 and the second brake nut 1 501 are separated by a third distance, and the first brake nut 2 402 and the second brake nut 2 502 are separated by a fourth distance. The third distance and the fourth distance are not equal to 0. Accordingly, the first brake nut 1 401 and the first brake nut 2 402 can clamp the external pull rod, and the second brake nut 1 501 and the second brake nut 2 502 can clamp the external pull rod, thereby realizing the braking function of the two-platen machine.

[0085] Thus, in the toggle braking method of the two-platen machine of the present invention application, through the combined cooperation of the drive unit, the linkage unit, and the link unit, it is supported that both the first braking unit and the second braking unit can be switched from the first working position to the second working position, optimizing the synchronization and stability of the first braking unit and the second braking unit. It can enable the first brake nut and the second brake nut to work synchronously and stably during the braking process, and can also adjust the sizes of the first distance and the second distance according to different production requirements to adapt to various working conditions, improving the stability, reliability, and application universality of the two-platen machine.

[0086] Optionally, the first working position is the initial working position of the toggle device of the two-platen machine, and the second working position is the working stop position of the toggle device of the two-platen machine.

[0087] In the present invention application, the first working position is set as the initial working position of the toggle device of the two-platen machine. When the toggle device of the two-platen machine is started, the first brake nut unit and the second brake nut unit can quickly cooperate to enter the initial state, laying a foundation for the subsequent braking work of the toggle device of the two-platen machine; the second working position is set as the working stop position of the toggle device of the two-platen machine. During the working process of the toggle device of the two-platen machine, when the second working position is the working stop position of the toggle device of the two-platen machine, the working stop position can be the intermediate stop position where the toggle device of the two-platen machine has not completed braking, so as to meet the actual specific manual intervention for different states of the brake nut in specific situations, such as in the case where manual maintenance of the brake nut is required; the working stop position can also be the working end position where the toggle device of the two-platen machine has completed braking. Thus, such a design of the working position improves the working flexibility, practical correspondence, and automation degree of the toggle device of the two-platen machine.

[0088] Optionally, after step S30, there is further step S40: Along the first direction, the driving unit 100 drives the first brake nut 401 to move, and the first brake nut 401 drives the second brake nut 501 to move, so that the second brake nut 501 moves away from the second brake nut 502; at the same time, the linkage unit 200 drives the second brake nut 502 to move, and the second brake nut 502 drives the second brake nut 402 to move, so that the second brake nut 502 moves away from the first brake nut 401, the third distance is switched to the first distance, and the fourth distance is switched to the second distance.

[0089] In some embodiments, after the end of step S30 and when entering step S40, the driving unit 100 first drives the first brake nut 401 to move in the reverse direction, driving the second brake nut 501 to also move in the direction away from the second brake nut 502. At the same time, the linkage unit 200 drives the second brake nut 502 to move in the reverse direction, thereby driving the second brake nut 402 away from the first brake nut 401. Through this linkage adjustment, the relative distance between the first brake nut 401 and the second brake nut 402 gradually returns to the original first distance, and the relative distance between the second brake nut 501 and the second brake nut 502 gradually returns to the original second distance. Through the joint cooperation of the driving unit, the linkage unit, and the connecting rod unit, it is ensured that the smooth switching back to the first working position from the second working position.

[0090] Optionally, step SC is further included in step S10: Obtain the synchronization data of the two-plate machine brake device, and the synchronization data includes: the first synchronization index S1, the second synchronization index S2, the third synchronization index S3, and the synchronization index S. The first synchronization index S1, the second synchronization index S2, the third synchronization index S3, and the synchronization index S are respectively:

[0091] S1 = SD / SF;

[0092] S2 = Sinθ1 / Sinθ2 - Sinθ3 / Sinθ4;

[0093] S3 = Sinθ1 / Sinθ3 - Sinθ2 / Sinθ4;

[0094] S = (S2 + S3) / (S1 - |S2| - |S3|);

[0095] Among them, SD is the area of the driving parallelogram D. The driving parallelogram D includes a first long side LD1, a second long side LD2, a first short side LW1, and a second short side LW2. The first long side LD1 is parallel to the first long side LD2, the first short side LW1 is parallel to the second short side LW2. The length of the first long side LD1 is the distance along the first direction from the center of the end part of the first fastener 3411 to the center of the end part of the second fastener 3412; the length of the second long side LD2 is the distance along the first direction from the center of the end part of the first fastener 3421 to the center of the end part of the second fastener 3422; the length of the first short side LW1 is the distance from the center of the end part of the first fastener 3411 to the center of the end part of the first fastener 3421, and the length of the second short side LW2 is the distance from the center of the end part of the second fastener 3412 to the center of the end part of the second fastener 3422; θ1 is the included angle between the second long side LD2 and the first short side LW1, and θ2 is the included angle between the first long side LD1 and the second short side LW2;

[0096] SF is the area of the linkage parallelogram F. The linkage parallelogram F includes a third long side LD3, a fourth long side LD4, a third short side LW3, and a fourth short side LW4. The third long side LD3 is parallel to the fourth long side LD4, the third short side LW3 is parallel to the fourth short side LW4. The length of the third long side LD3 is the distance along the first direction from the center of the end part of the first fastener 3431 to the center of the end part of the second fastener 3432; the length of the fourth long side LD4 is the distance along the first direction from the center of the end part of the first fastener 3441 to the center of the end part of the second fastener 3442; the length of the third short side LW3 is the distance from the center of the end part of the first fastener 3431 to the center of the end part of the first fastener 3441, and the length of the fourth short side LW4 is the distance from the center of the end part of the second fastener 3432 to the center of the end part of the second fastener 3442; θ3 is the included angle between the third long side LD2 and the third short side LW1, and θ4 is the included angle between the fourth long side LD1 and the fourth short side LW4.

[0097] In some embodiments, the driving parallelogram D includes a first long side LD1, a second long side LD2, a first short side LW1, and a second short side LW2. The first long side LD1 is parallel to the second long side LD2, and the first short side LW1 is parallel to the second short side LW2. The length of the first long side LD1 is the distance from the center of the end portion of the first fastener 3411 to the center of the end portion of the second fastener 3412 along the first direction; the length of the second long side LD2 is the distance from the center of the end portion of the first fastener 3421 to the center of the end portion of the second fastener 3422 along the first direction; the length of the first short side LW1 is the distance from the center of the end portion of the first fastener 3411 to the center of the end portion of the second fastener 3421, and the length of the second short side LW2 is the distance from the center of the end portion of the second fastener 3412 to the center of the end portion of the second fastener 3422; θ1 is the included angle between the second long side LD2 and the first short side LW1, and θ2 is the included angle between the first long side LD1 and the second short side LW2;

[0098] In some embodiments, the linkage parallelogram F includes a third long side LD3, a fourth long side LD4, a third short side LW3, and a fourth short side LW4. The third long side LD3 is parallel to the fourth long side LD4, and the third short side LW3 is parallel to the fourth short side LW4. The length of the third long side LD3 is the distance from the center of the end portion of the first fastener 3431 to the center of the end portion of the second fastener 3432 along the first direction; the length of the fourth long side LD4 is the distance from the center of the end portion of the first fastener 3441 to the center of the end portion of the second fastener 3442 along the first direction; the length of the third short side LW3 is the distance from the center of the end portion of the first fastener 3431 to the center of the end portion of the fourth fastener 3441, and the length of the fourth short side LW4 is the distance from the center of the end portion of the second fastener 3432 to the center of the end portion of the fourth fastener 3442; θ3 is the included angle between the third long side LD2 and the third short side LW1, and θ4 is the included angle between the fourth long side LD1 and the fourth short side LW4.

[0099] On this basis, only simple measurements (such as multiple pairs of relative position sensors, etc.) are needed to obtain the position conditions of the first link 1, the first link 2, the second link 1, and the second link 2, and then the first synchronization index S1, the second synchronization index S2, and the third synchronization index S3 can be accurately calculated. The first synchronization index S1, the second synchronization index S2, and the third synchronization index S3 are respectively:

[0100] S1 = SD / SF;

[0101] S2 = Sinθ1 / Sinθ2 - Sinθ3 / Sinθ4;

[0102] S3 = Sinθ1 / Sinθ3 - Sinθ2 / Sinθ4;

[0103] S = (S2 + S3) / (S1 - |S2| - |S3|);

[0104] In the present invention application, exemplarily, when 0 ≤ S < 0.1, it can be considered that the brake device of the two-platen machine operates normally and the synchronization situation is good; when S > 0.1, it can be considered that there is a risk of poor synchronization in the operation of the brake device of the two-platen machine. First, S1 = SD / SF ensures the optimization of the geometric relationship between the driving parallelogram and the linkage parallelogram, thereby improving the uniformity of motion linkage and load distribution and enhancing the reliability of the brake device of the two-platen machine; second, the second synchronization index S2 and the third synchronization index S3 consider the changes in each angle, and S1 considers the overall synchronization accuracy, making the relative motion between the whole and components of the brake device of the two-platen machine more accurate, capable of effectively improving the synchronization accuracy of each component in the brake device. The calculation of the synchronization index is closely related to the geometric parameters of the driving parallelogram and the linkage parallelogram. Precise control of these factors can ensure the coordinated operation between different components, thereby enhancing the operation efficiency and stability of the entire device.

[0105] Optionally, after repeating step S20, S30, S40 one or more times, step S50 is further included after step S40 to obtain the synchronization reference data and synchronization calibration data of the brake device of the two-platen machine. The synchronization reference data includes: the first synchronization reference index S1p, the second synchronization reference index S2p, and the synchronization reference index SP. The synchronization calibration data includes: the dynamic synchronization calibration index SSP. The synchronization reference index SP and the dynamic synchronization calibration index SSP are respectively:

[0106] S1p = cos(θ1 - θ2) / cos(θ3 - θ4) - cos(θ1 - θ3) / cos(θ2 - θ4);

[0107] S2p = LD1 / LD2 + LW1 / LW2 - LD3 / LD4 - LW3 / LW4;

[0108] SP = (|S1p| - |S2p|) / (1 + |S1p| + |S2p|);

[0109] SSP = (1 + S) / (1 - SP).

[0110] In the present invention application, the content of the first synchronization reference index S1p, the second synchronization reference index S2p, the synchronization reference index SP, the synchronization reference index SP, and the dynamic synchronization calibration index SSP can refer to all the technical content and technical effects recorded in the foregoing brake device of the two-platen machine.

[0111] In some embodiments, in the toggle clamp device of a two-platen machine, the dynamic synchronization calibration index SSP can be used to further dynamically evaluate the overall synchronization of the toggle clamp device of the two-platen machine by combining the previously mentioned synchronization index S and the synchronization reference index SP. Exemplarily, when 1 ≤ SSP < 1.15, it can be considered that the toggle clamp device of the two-platen machine is operating normally and the synchronization is good; when SSP > 1.15, it can be considered that there is a risk of poor operating synchronization of the toggle clamp device of the two-platen machine. Furthermore, the toggle clamp device of the two-platen machine can be maintained so that the synchronization index S, the synchronization reference index SP, and the dynamic synchronization calibration index SSP are within the expected range, thereby improving the operating synchronization accuracy of the toggle clamp device of the two-platen machine.

[0112] In the present invention application, first of all, through the combined operation of the drive unit, the linkage unit, and the connecting rod unit, it is possible to smoothly switch back from the second working position to the first working position, or smoothly switch back from the first working position to the second working position. During the entire switching process, the toggle clamp device of the two-platen machine works safely and stably. The flexible switching between different working positions meets the requirements of variable production environments and different working conditions, improving the adaptability and versatility of the equipment. In addition, the synchronization index S can be used to calculate the initial synchronization situation of the toggle clamp device of the two-platen machine. However, after the toggle clamp device of the two-platen machine has worked multiple times, the synchronization reference index SP can be used to calculate the synchronization situation after the toggle clamp device of the two-platen machine has worked, and at the same time, the dynamic synchronization calibration index SSP can be calculated. Furthermore, the amplitude deviation and error of the toggle clamp device of the two-platen machine can be dynamically discovered through comparison, realizing more precise synchronization control of the toggle clamp device of the two-platen machine, enhancing the synchronization, stability, and reliability of the toggle clamp device of the two-platen machine after long-term operation, reducing the maintenance cost of the toggle clamp device of the two-platen machine, and improving the intelligent, digital, long-term synchronization performance, and service life of the toggle clamp device of the two-platen machine.

[0113] Therefore, in the present invention application, as described above, although the present invention application has been shown and described with reference to specific preferred embodiments, it should not be construed as a limitation of the present invention application itself. Various changes can be made to it in form and detail without departing from the spirit and scope of the present invention application defined by the appended claims.

Claims

1. A toggle press brake device, characterized in that, Comprising: A driving unit, a linkage unit, a connecting rod unit, a first brake nut unit, and a second brake nut unit; the first brake nut unit includes a first brake nut one and a first brake nut two, and the second brake nut unit includes a second brake nut one and a second brake nut two; the connecting rod unit includes a first connecting rod group and a second connecting rod group, the first connecting rod group includes a first connecting rod one and a first connecting rod two, and the second connecting rod group includes a second connecting rod one and a second connecting rod two; the first connecting rod one, the first connecting rod two, the second connecting rod one, and the second connecting rod two are all parallel to each other; One side of the driving unit is connected to the first brake nut one, and the other side of the driving unit is connected to the second brake nut two. One side of the linkage unit is connected to the first brake nut one, and the other side of the linkage unit is connected to the second brake nut two; the first connecting rod one is connected to the first brake nut one and the second brake nut one, and the second brake nut two slides on the first connecting rod one; the first connecting rod two is connected to the first brake nut two and the second brake nut two, and the first brake nut one slides on the first connecting rod two; the second connecting rod one is connected to the first brake nut two and the second brake nut two, and the first brake nut one slides on the second connecting rod one; the second connecting rod two is connected to the first brake nut one and the second brake nut one, and the second brake nut two slides on the second connecting rod two; The two-platen machine brake device includes a first working position and a second working position; when in the first working position, along the first direction, the first brake nut one and the first brake nut two are separated by a first distance, and the second brake nut one and the second brake nut two are separated by a second distance, and both the first distance and the second distance are not equal to 0; when in the second working position, along the first direction, the first brake nut one and the first brake nut two are separated by a third distance, and the second brake nut one and the second brake nut two are separated by a fourth distance, and both the third distance and the fourth distance are equal to 0.

2. The two-platen machine brake device according to claim 1, wherein, During the process of switching from the first working position to the second working position, along the first direction, the driving unit drives the first brake nut one to move, and the first brake nut one drives the second brake nut one to move, so that the second brake nut one approaches and contacts the second brake nut two; at the same time, the linkage unit drives the second brake nut two to move, and the second brake nut two drives the first brake nut two to move, so that the first brake nut two approaches and contacts the first brake nut one, and the first distance is switched to the third distance, and the second distance is switched to the fourth distance; During the process of switching from the second working position to the first working position, along the first direction, the driving unit drives the first brake nut one to move, and the first brake nut one drives the second brake nut one to move, so that the second brake nut one moves away from the second brake nut two; at the same time, the linkage unit drives the second brake nut two to move, and the second brake nut two drives the first brake nut two to move, so that the first brake nut two moves away from the first brake nut one, and the third distance is switched to the first distance, and the fourth distance is switched to the second distance.

3. The two-platen machine brake device according to claim 2, characterized in that, The driving unit includes a first connector, a connecting rod, a fastener, a piston rod, a piston sleeve, a piston cylinder, and a second connector. The first connector connects the first brake nut and the connecting rod. The connecting rod connects the piston rod through the fastener. The piston sleeve is installed on the piston cylinder. The piston rod moves on the piston cylinder. The second connector connects the second brake nut two and the piston cylinder. The piston cylinder is provided with an oil hole.

4. The two-platen machine brake device according to claim 3, wherein, The linkage unit includes a linkage disk, a first linkage rod, a first linkage mounting member, a second linkage rod, and a second linkage mounting member. One side of the first linkage rod is connected to the linkage disk, and the other side of the first linkage rod is connected to the first linkage mounting member. The first linkage mounting member is connected to the first brake nut. One side of the second linkage rod is connected to the linkage disk, and the other side of the second linkage rod is connected to the second linkage mounting member. The second linkage mounting member is connected to the second brake nut two. The linkage disk includes a first linkage plate, a second linkage plate, and a fastening member. The end of one side of the first linkage rod is located between the first linkage plate and the second linkage plate. The end of one side of the first linkage rod is connected to the first linkage plate and the second linkage plate. The end of one side of the second linkage rod is located between the first linkage plate and the second linkage plate. The end of one side of the second linkage rod is connected to the first linkage plate and the second linkage plate. The first linkage plate and the second linkage plate are connected through the fastening member.

5. The two-platen machine brake device according to claim 4, wherein, One end of the first connecting rod one is connected to the first brake nut one through the first fastener one, and the other end of the first connecting rod one is connected to the second brake nut one through the first fastener two. One end of the first connecting rod two is connected to the first brake nut two through the second fastener one, and the other end of the first connecting rod two is connected to the second brake nut two through the second fastener two. One end of the second connecting rod one is connected to the first brake nut two through the third fastener one, and the other end of the second connecting rod one is connected to the second brake nut two through the third fastener two. One end of the second connecting rod two is connected to the first brake nut one through the fourth fastener one, and the other end of the second connecting rod two is connected to the second brake nut one through the fourth fastener two.

6. A toggle press brake method, which uses a toggle press brake device according to any one of the above claims 2-5, characterized in that It includes the following steps: Step S10: When at the first working position, along the first direction, the first brake nut one and the first brake nut two are separated by a first distance, the second brake nut one and the second brake nut two are separated by a second distance, and both the first distance and the second distance are not equal to 0. Step S20: Along the first direction, the driving unit drives the first brake nut one to move. The first brake nut one drives the second brake nut one to move so that the second brake nut one approaches and contacts the second brake nut two. At the same time, the linkage unit drives the second brake nut two to move. The second brake nut two drives the first brake nut two to move so that the first brake nut two approaches and contacts the first brake nut one. The first distance is switched to a third distance, and the second distance is switched to a fourth distance to realize the switching from the first working position to the second working position. Step S30: When at the second working position, along the first direction, the first brake nut one and the first brake nut two are separated by a third distance, the second brake nut one and the second brake nut two are separated by a fourth distance, and both the third distance and the fourth distance are not equal to 0.

7. The method for braking a two-platen machine according to claim 6, wherein, After step S30, step S40 is further included: along the first direction, the driving unit drives the first brake nut 1 to move, and the first brake nut 1 drives the second brake nut 1 to move, so that the second brake nut 1 moves away from the second brake nut 2; at the same time, the linkage unit drives the second brake nut 2 to move, and the second brake nut 2 drives the first brake nut 2 to move, so that the first brake nut 2 moves away from the first brake nut 1, the third distance is switched to the first distance, and the fourth distance is switched to the second distance.

8. The method for braking a two-platen machine according to claim 7, wherein The first working position is the initial working position of the toggle clamp device of the two-platen machine, and the second working position is the stop working position of the toggle clamp device of the two-platen machine.

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