Press-fit debugging dual protection mechanism

Abstract

The present application relates to a kind of pressing debugging dual protection mechanism, be arranged on pressing mechanism, limit the free drop of lower pressing module, comprising: photoelectric protection unit, including the photoelectric sensing sheet being arranged on lower pressing module and the upper photoelectric sensor being arranged on the outside of lower pressing module, lower photoelectric sensor, upper photoelectric sensor and lower photoelectric sensor cooperate the position of photoelectric sensing sheet detection, when photoelectric sensing sheet position changes, control signal is transmitted to the drive unit of lower pressing module, pass through drive unit control lower pressing module;Mechanical protection unit, including the limit block being arranged on lower pressing module and the limit bolt being arranged on the outside of lower pressing module, limit bolt is removably arranged below limit block, clearance is left between limit bolt and limit block, when lower pressing module free drop, limit bolt stops limit block.The present application provides protection mechanism when equipment debugging, from photoelectric and mechanical two aspects carry out dual protection, make debugging more stable and safe.

Description

Technical Field

[0001] This invention relates to the field of pressing equipment technology, and in particular to a dual protection mechanism for pressing and debugging. Background Technology

[0002] Pressing mechanisms are widely used in automated equipment and are common processing mechanisms in the manufacturing field. After long-term use, pressing mechanisms need to be adjusted and tested for parameters such as pressing accuracy, pressing force, and hot pressing temperature in the hot pressing device. This requires opening the pressing mechanism and leaving an adjustment gap between the pressing module and the platform module. For small pressing mechanisms, workers need to insert their hands into the adjustment gap to operate. For large pressing mechanisms, workers may even need to put part of their body into the pressing mechanism to operate and adjust, which may pose some safety hazards.

[0003] Existing mechanisms lack adequate protection for small pressing mechanisms, frequently resulting in finger injuries. Maintenance of large pressing mechanisms relies on simplistic protection, primarily mechanical limits to prevent free detachment, which poses risks and hidden dangers. Furthermore, the mechanical structure's instability is poor; a free detachment of a large pressing mechanism could deform it, breaking through the mechanical limits. Additionally, operators often forget to activate the mechanical structure during operation, performing adjustments without proper safety measures. Summary of the Invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the problem that the protection mechanism of the pressing mechanism is single and there are risks and hidden dangers when maintaining the pressing mechanism in the prior art. The invention provides a dual protection mechanism for pressing and debugging, which upgrades the protection mechanism during equipment debugging and provides dual protection from both photoelectric and mechanical aspects, making the debugging more stable and safe.

[0005] To solve the above technical problems, the present invention provides a dual protection mechanism for pressing and debugging, which is disposed on a pressing mechanism. The pressing mechanism includes a pressing module, and the dual protection mechanism for pressing and debugging restricts the pressing module from falling off freely. The dual protection mechanism for pressing and debugging includes:

[0006] The photoelectric protection unit includes a photoelectric sensor sheet disposed on the pressing module and an upper photoelectric sensor and a lower photoelectric sensor disposed on the outside of the pressing module. The upper photoelectric sensor and the lower photoelectric sensor cooperate to detect the position of the photoelectric sensor sheet. When the position of the photoelectric sensor sheet changes, a control signal is transmitted to the driving unit of the pressing module. The driving unit controls the pressing module to form a photoelectric protection limit structure.

[0007] The mechanical protection unit includes a limiting block disposed on the pressing module and a limiting pin disposed on the outside of the pressing module. The limiting pin is detachably disposed below the limiting block, and a gap is left between the limiting pin and the limiting block. When the pressing module falls freely, the limiting pin stops the limiting block, forming a mechanical limiting structure.

[0008] In one embodiment of the present invention, the upper photoelectric sensor and the lower photoelectric sensor are mounted on the outside of the lower pressing module by a fixing bracket. The upper photoelectric sensor and the lower photoelectric sensor are both arranged on the path on which the lower pressing module drives the photoelectric sensing sheet to move. When the pressing mechanism is in the debugging state, the upper photoelectric sensor cooperates with the photoelectric sensing sheet to realize signal transmission. When the lower pressing module is detached, the lower photoelectric sensor cooperates with the photoelectric sensing sheet to realize signal transmission.

[0009] In one embodiment of the present invention, a plug plate is provided on the outside of the pressing module, and a pin hole is provided on the plug plate. The limiting pin is inserted into the pin hole and fixed below the limiting block.

[0010] In one embodiment of the present invention, the mechanical protection unit further includes a detection sensor for detecting whether the limiting pin is inserted. After the limiting pin is inserted below the limiting block, the photoelectric protection unit is activated and the pressing mechanism enters the debugging mode.

[0011] In one embodiment of the present invention, the pressing module includes:

[0012] Mounting plate;

[0013] A pressure drive source is mounted on the mounting plate;

[0014] A guide rod passes through the mounting plate and can slide relative to the mounting plate; multiple guide rods are provided on the mounting plate.

[0015] A fixed plate and a pressure head are respectively disposed at both ends of the guide rod. The output end of the downward pressure drive source is connected to the pressure head, and the downward pressure drive source pushes the pressure head to move up and down.

[0016] The photoelectric sensor is mounted on the fixed plate, and the fixed plate moves with the pressure head when the pressure head falls freely.

[0017] In one embodiment of the present invention, the pressure driving source is a cylinder driving source, and a two-way valve is provided between the cylinder driving source and the air supply device. When the pressure head falls freely, the two-way valve is triggered to open, preventing the pressure head from falling.

[0018] In one embodiment of the present invention, the pressing mechanism further includes a platform module correspondingly disposed below the pressing module. The platform module cooperates with the pressing module to press the material. When the pressing mechanism is being adjusted, an adjustment gap is left between the platform module and the pressing module. The dual protection mechanism for pressing and adjusting restricts the change of the adjustment gap.

[0019] In one embodiment of the present invention, the platform module includes: a lifting slide and a mold disposed on the lifting slide. During pressing and debugging, the lifting slide drives the carrier to move towards or away from the pressing module to adjust the size of the debugging gap.

[0020] In one embodiment of the present invention, a debugging device connected to the pressing mechanism is further included. A solenoid valve is provided between the debugging device and the pressing mechanism. After the limiting pin is inserted below the limiting block, the solenoid valve is opened, and the debugging device is connected to the pressing mechanism.

[0021] In one embodiment of the present invention, an alarm unit is further included. When the pressure module detaches freely, the alarm unit is triggered and issues an alarm.

[0022] The technical solution of the present invention has the following advantages compared with the prior art:

[0023] The dual protection mechanism for pressing and debugging described in this invention features a dual protection system consisting of a photoelectric protection unit and a mechanical protection unit. In the photoelectric protection unit, a photoelectric sensor and a photoelectric induction plate work together to detect the position of the pressing module in real time. When the position of the pressing module changes, a signal is immediately transmitted to the driving unit of the pressing mold. The driving unit then controls the pressing module to prevent it from slipping freely. In the mechanical protection unit, a limit block and a limit pin work together to immediately prevent the pressing module from slipping at the first moment, providing timely protection in large pressing machines. In this design, even if the mechanical limiting method is insufficient to fully withstand the impact of the sliding down module, it can still serve as the first line of protection. During this process, the photoelectric protection unit will be triggered, and sufficient response time is allowed for the photoelectric protection unit. Therefore, in the mechanical protection unit, a gap is left between the limiting pin and the limiting block. When the down module falls off, it can not only provide protection but also not affect the triggering mechanism of the photoelectric protection unit. Compared with the existing single mechanical protection mechanism, the protection mechanism during equipment debugging is upgraded to provide dual protection from both photoelectric and mechanical aspects, making the debugging more stable and safe. Attached Figure Description

[0024] To make the content of this invention easier to understand, the invention will be further described in detail below with reference to specific embodiments and accompanying drawings, wherein...

[0025] Figure 1 This is a schematic diagram of the pressing mechanism of the present invention;

[0026] Figure 2 This is a schematic diagram of the overall structure of the dual protection mechanism for pressing and debugging of the present invention;

[0027] Figure 3 This is a schematic diagram of the photoelectric protection unit of the present invention;

[0028] Figure 4 This is a schematic diagram of the mechanical protection unit of the present invention;

[0029] Figure 5 This is a schematic diagram of the structure of the pressing mechanism of the present invention.

[0030] Explanation of reference numerals in the accompanying drawings: 1. Pressing mechanism; 11. Pressing module; 111. Mounting plate; 112. Pressing drive source; 113. Press head; 114. Guide rod; 115. Fixing plate; 12. Platform module; 121. Lifting slide; 122. Mold; 2. Photoelectric protection unit; 21. Photoelectric sensor; 22. Upper photoelectric sensor; 23. Lower photoelectric sensor; 3. Mechanical protection unit; 31. Limit block; 32. Limit pin; 33. Connecting plate; 34. Detection sensor; 4. Debugging equipment; 41. Solenoid valve. Detailed Implementation

[0031] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments described are not intended to limit the present invention.

[0032] This invention discloses a dual protection mechanism for pressing and debugging, which is installed on the pressing mechanism 1, as shown in the figure. Figure 1As shown, the pressing mechanism 1 includes a pressing module 11 and a platform module 12 correspondingly disposed below the pressing module 11. The platform module 12 cooperates with the pressing module 11 to press the material. The pressing module 11 and the platform module 12 are respectively provided with mold cavities matching the shape of the material. When using the pressing mechanism 1, the material is placed on the platform module 12, and the position of the platform module 12 is relatively fixed. The pressing module 11 moves towards the platform module 12. When the pressing module 11 and the platform module 12 engage, the material is pressed and fixed. After long-term use, the pressing mechanism 1 needs to be adjusted. The accuracy of the pressing, the magnitude of the pressing force, and the hot pressing temperature in some hot pressing devices need to be adjusted and tested. This requires opening the pressing mechanism 1 and leaving an adjustment gap between the lower pressing module 11 and the platform module 12. For small pressing mechanisms 1, the operator needs to insert their hand into the adjustment gap to operate. For large pressing mechanisms 1, the operator may even need to put part of their body into the pressing mechanism 1 to operate and adjust, which poses some safety hazards. The dual protection mechanism for pressing and adjusting described in this invention is designed to prevent the lower pressing module 11 from falling freely during the adjustment of the pressing mechanism 1, thus protecting the personal safety of the operator. (Refer to...) Figure 2 As shown, the dual protection mechanism for pressing and debugging includes: photoelectric protection unit 2 and mechanical protection unit 3. Compared with the existing single mechanical protection mechanism, the protection mechanism during equipment debugging is upgraded to provide dual protection from both photoelectric and mechanical aspects, making the debugging more stable and safe.

[0033] Reference Figure 3 As shown, the photoelectric protection unit 2 includes a photoelectric sensor 21 disposed on the pressing module 11 and an upper photoelectric sensor 22 and a lower photoelectric sensor 23 disposed on the outside of the pressing module 11. The upper photoelectric sensor 22 and the lower photoelectric sensor 23 cooperate to detect the position of the photoelectric sensor 21. The upper photoelectric sensor 22 and the lower photoelectric sensor 23 are mounted on the outside of the pressing module 11 by a fixing bracket. The upper photoelectric sensor 22 and the lower photoelectric sensor 23 are both disposed on the path through which the pressing module 11 moves the photoelectric sensor 21. When the pressing mechanism 1 is in the debugging state, the upper photoelectric sensor 22 cooperates with the photoelectric sensor 21 to realize signal transmission. When the pressing module 11 is freely detached, the lower photoelectric sensor 23 cooperates with the photoelectric sensor 21 to realize signal transmission.

[0034] In this embodiment, the position of the pressing module 11 is detected by the photoelectric sensing sheet 21 in conjunction with the photoelectric sensor. When the position of the photoelectric sensing sheet 21 changes, a control signal is transmitted to the driving unit of the pressing module 11. The driving unit controls the pressing module 11 so that the pressing die will not slip freely, thus forming a photoelectric protection limiting structure.

[0035] Reference Figure 4 As shown, the mechanical protection unit 3 includes a limiting block 31 disposed on the pressing module 11 and a limiting pin 32 disposed on the outside of the pressing module 11. The limiting pin 32 is detachably disposed below the limiting block 31. When the pressing mechanism 1 is in normal use, the limiting pin 32 is not inserted below the limiting block 31. Only when the pressing mechanism 1 needs to be adjusted is the limiting pin 32 inserted below the limiting block 31. The limiting block 31 protrudes outside the pressing module 11 and does not affect the cooperation between the pressing module 11 and the platform module 12. When the limiting pin 32 is inserted below the limiting block 31, a gap is left between the limiting pin 32 and the limiting block 31. When the pressing module 11 falls freely, the limiting pin 32 stops the limiting block 31, forming a mechanical limiting structure.

[0036] In the mechanical protection unit 3, a limiting block 31 and a limiting pin 32 are set to cooperate. At the first moment when the pressing module 11 slips, the mechanical support immediately prevents the pressing module 11 from slipping, thus providing timely protection. In the large pressing mechanism 1, even if the mechanical limiting method is insufficient to fully withstand the impact force of the pressing module 11 slipping, it can still provide the first line of protection. During this process, the photoelectric protection unit 2 will be triggered, and sufficient response time is given to the photoelectric protection unit 2. Therefore, in the mechanical protection unit 3, a gap is left between the limiting pin 32 and the limiting block 31. When the pressing module 11 falls off, it can provide protection without affecting the triggering mechanism of the photoelectric protection unit 2. Compared with the existing technology of directly setting a limiting structure to support the pressing module 11, the gap left between the limiting pin 32 and the limiting block 31 in this embodiment can be used in conjunction with the photoelectric protection unit 2 to achieve a double protection effect, so as to prevent the mechanical limiting structure from reaching the limit force and causing safety hazards.

[0037] Specifically, a plug plate 33 is provided on the outer side of the pressing module 11. The plug plate 33 has a pin hole. The limiting pin 32 is inserted into the pin hole and fixed below the limiting block 31. In actual use, multiple limiting blocks 31 can be set in the pressing module 11. Multiple limiting pins 32 jointly support the multiple limiting blocks 31, which plays a role in force distribution and avoids excessive force on a single limiting pin 32.

[0038] Specifically, the mechanical protection unit 3 further includes a detection sensor 34 for detecting whether the limiting pin 32 is inserted. After the limiting pin 32 is inserted below the limiting block 31, the photoelectric protection unit 2 is activated, and the pressing mechanism 1 enters the debugging mode. In this embodiment, the photoelectric protection unit 2 is fixedly installed on the pressing mechanism 1. When the pressing mechanism 1 is in normal use, it is not necessary to activate the photoelectric protection unit 2, otherwise it will affect the normal operation of the pressing mechanism 1 and prevent it from completing the pressing action. Therefore, in this embodiment, the limiting pin 32 is set not only as a mechanical limiting protection structure, but also as a switch to activate the photoelectric protection unit 2. Only after the limiting pin 32 is inserted below the limiting block 31 will the photoelectric protection unit 2 be activated, indicating that the pressing mechanism 1 has entered the debugging mode, rather than the operating mode of the pressing mechanism 1.

[0039] Reference Figure 1 As shown, the pressing module 11 includes: a mounting plate 111, a pressing drive source 112, and a pressing head 113. The mounting plate 111 provides installation space for the pressing module 11. The pressing module 11 and the platform module 12 can be mounted on the same mounting frame. The mounting plate 111 is positioned above the mounting frame. The pressing drive source 112 is mounted on the mounting plate 111. The pressing head 113 is connected to the output end of the pressing drive source 112. The pressing drive source 112 drives the pressing head 113 to move up and down, thereby cooperating with the platform module 12 to complete the pressing of materials.

[0040] Specifically, in order to limit the direction of movement of the pressure head 113 driven by the pressure drive source 112, a guide rod 114 is also provided in the pressure module 11. The guide rod 114 passes through the mounting plate 111 and can slide relative to the mounting plate 111. One end of the guide rod 114 is connected to the pressure head 113, and the other end of the guide rod 114 is connected to a fixing plate 115. Multiple guide rods 114 are provided on the mounting plate 111. The multiple guide rods 114 jointly support and limit the pressure head 113, so that the pressure head 113 can only move towards the platform module 12 under the drive of the pressure drive source 112, preventing the pressure head 113 from deviating.

[0041] In this embodiment, the fixing plate 115 and the pressure head 113 are connected together by the guide rod 114. When the pressure head 113 falls off freely, the fixing plate 115 moves with the pressure head 113. It is inconvenient to set the photoelectric protection unit 2 at the position of the pressure head 113. Therefore, the photoelectric sensing sheet 21 is set on the fixing plate 115. Detecting the position of the fixed plate 115 is equivalent to detecting the position of the pressure head 113.

[0042] In this embodiment, the position of the pressing module 11 is detected in real time by the photoelectric sensing sheet 21 and the photoelectric sensor. After the position of the pressing module 11 changes, a control signal needs to be sent to the pressing drive source 112. The pressing drive source 112 applies a force to drive the pressing head 113 to move in the opposite direction, preventing the pressing head 113 from sliding down freely. Therefore, the pressing drive source 112 is set as a cylinder drive source. A two-way valve is provided between the cylinder drive source and the air supply device. When the pressing head 113 falls down freely, the two-way valve is triggered to open, preventing the pressing head 113 from falling down.

[0043] In other embodiments, the pressure drive source 112 can also be set as a linear motor module, and the signal of the photoelectric sensor 21 and the photoelectric sensor to detect the position of the pressure module 11 can be used as the switching signal of the linear motor module. Alternatively, the pressure head 113 can be driven to move in the opposite direction by the linear motor module.

[0044] Specifically, during the adjustment of the pressing mechanism 1, an adjustment gap is maintained between the platform module 12 and the pressing module 11, and the dual protection mechanism for pressing and adjusting restricts the change of the adjustment gap; refer to Figure 1 As shown, the platform module 12 includes a lifting slide 121 and a mold 122 disposed on the lifting slide 121. During pressing and debugging, the lifting slide 121 drives the carrier to move towards or away from the pressing module 11 to adjust the size of the debugging gap.

[0045] Reference Figure 5 As shown, when debugging the pressing mechanism 1, it is also necessary to connect the pressing mechanism 1 to an external debugging device 4. A solenoid valve 41 is provided between the debugging device 4 and the pressing mechanism 1. After the limit pin 32 is inserted below the limit block 31, the solenoid valve 41 opens, and the debugging device 4 is connected to the pressing mechanism 1. This can play a foolproof role. That is to say, the pressing mechanism 1 cannot be debugged when the limit pin 32 is not inserted, which can prevent the operator from forgetting.

[0046] Specifically, during actual use, the operator also discovered a problem: when the pressing module 11 was already in a state of free fall, the photoelectric protection unit 2 and the mechanical protection unit 3 had already taken protective measures to limit the free fall of the pressing module 11, but the operator was unaware of this and was still making adjustments, which also posed a certain risk. Therefore, the dual protection mechanism for pressing and adjusting in this embodiment also includes an alarm unit. When the pressing module 11 is free fall, the alarm unit is triggered and issues an alarm, including an audible alarm and a light alarm.

[0047] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the scope of protection of this invention.

Claims

1. A dual-protection mechanism for pressing and debugging, characterized in that, The pressing mechanism includes a pressing module, and the pressing and debugging dual protection mechanism restricts the pressing module from falling off freely. The pressing and debugging dual protection mechanism includes: The photoelectric protection unit includes a photoelectric sensor sheet disposed on the pressing module and an upper photoelectric sensor and a lower photoelectric sensor disposed on the outside of the pressing module. The upper photoelectric sensor and the lower photoelectric sensor cooperate to detect the position of the photoelectric sensor sheet. When the position of the photoelectric sensor sheet changes, a control signal is transmitted to the driving unit of the pressing module. The driving unit controls the pressing module to form a photoelectric protection limit structure. The upper photoelectric sensor and the lower photoelectric sensor are mounted on the outside of the lower pressing module by a fixing bracket. The upper photoelectric sensor and the lower photoelectric sensor are both set on the path on which the lower pressing module drives the photoelectric sensing sheet to move. When the pressing mechanism is in the debugging state, the upper photoelectric sensor and the photoelectric sensing sheet cooperate to realize signal transmission. When the lower pressing module is detached, the lower photoelectric sensor and the photoelectric sensing sheet cooperate to realize signal transmission. The mechanical protection unit includes a limiting block disposed on the pressing module and a limiting pin disposed on the outside of the pressing module. The limiting pin is detachably disposed below the limiting block, and a gap is left between the limiting pin and the limiting block. When the pressing module falls freely, the limiting pin stops the limiting block, forming a mechanical limiting structure.

2. The dual protection mechanism for pressing and debugging according to claim 1, characterized in that: A plug plate is provided on the outside of the pressing module. A pin hole is provided on the plug plate. The limiting pin is inserted into the pin hole and fixed below the limiting block.

3. The dual protection mechanism for pressing and debugging according to claim 1, characterized in that: The mechanical protection unit further includes a detection sensor for detecting whether the limiting pin is inserted. After the limiting pin is inserted below the limiting block, the photoelectric protection unit is activated and the pressing mechanism enters the debugging mode.

4. The dual protection mechanism for pressing and debugging according to claim 1, characterized in that: The pressing module includes: Mounting plate; A pressure drive source is mounted on the mounting plate; A guide rod passes through the mounting plate and can slide relative to the mounting plate; multiple guide rods are provided on the mounting plate. A fixed plate and a pressure head are respectively disposed at both ends of the guide rod. The output end of the downward pressure drive source is connected to the pressure head, and the downward pressure drive source pushes the pressure head to move up and down. The photoelectric sensor is mounted on the fixed plate, and the fixed plate moves with the pressure head when the pressure head falls freely.

5. The dual protection mechanism for pressing and debugging according to claim 4, characterized in that: The downward pressure drive source is a cylinder drive source. A two-way valve is provided between the cylinder drive source and the air supply device. When the pressure head falls freely, the two-way valve is triggered to open, preventing the pressure head from falling off.

6. The dual protection mechanism for pressing and debugging according to claim 1, characterized in that: The pressing mechanism also includes a platform module correspondingly disposed below the pressing module. The platform module cooperates with the pressing module to press the material. When the pressing mechanism is being adjusted, an adjustment gap is left between the platform module and the pressing module. The dual protection mechanism for pressing and adjusting restricts the change of the adjustment gap.

7. The dual protection mechanism for pressing and debugging according to claim 6, characterized in that: The platform module includes a lifting slide and a mold disposed on the lifting slide. During pressing and debugging, the lifting slide drives the mold to move closer to or further away from the pressing module to adjust the size of the debugging gap.

8. The dual protection mechanism for pressing and debugging according to claim 1, characterized in that: It also includes a debugging device connected to the pressing mechanism. A solenoid valve is provided between the debugging device and the pressing mechanism. After the limit pin is inserted below the limit block, the solenoid valve opens, and the debugging device is connected to the pressing mechanism.

9. The dual protection mechanism for pressing and debugging according to claim 1, characterized in that: It also includes an alarm unit that is triggered when the pressure module falls freely, and the alarm unit issues an alarm.

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