Pressing tool

Abstract

The pressing tool is used for pressing a to-be-pressed part and comprises a first pressing plate, a second pressing plate and a detection assembly, and the first pressing plate is used for containing the to-be-pressed part. The second pressing plate comprises a pressing part and a mounting part, and the first pressing plate and the second pressing plate can get close to each other or get away from each other. The detection assembly is installed on the installation part and comprises a conductive piece, an elastic piece and a detection piece, and the elastic piece is connected with the conductive piece. In the initial state, the conductive piece is located on the side, facing the first pressing plate, of the detection piece, a preset distance exists between the conductive piece and the detection piece, and the bottom face of the conductive piece is located between the first pressing plate and the pressing part. In the process that the first pressing plate and the second pressing plate are close to each other, pressure is applied to the to-be-pressed part, when the conductive part and the detection part are in contact conduction, a user can know that the maximum value of the pressure capable of being borne by the to-be-pressed part is reached, and the first pressing plate stops moving, so that the risk that the pressing tool is damaged is reduced, and the manufacturing stability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fuel cells, in particular to a pressing tool. Background Art

[0002] The plates and membrane electrode assemblies of an integrated fuel cell are usually combined into one using adhesives. In the process of combining the fuel cells into one, adhesives must first be applied between the plates and the membrane electrode, followed by a pressing process so that the plates and the membrane electrode can adhere to each other and have good sealing. Since the thickness of the plates and membrane electrode assemblies is relatively small, and the flatness and consistency requirements of the pressing tooling are relatively high, sensors are often embedded in the tooling to detect the pressure during the pressing process to avoid the risk of damage to the plates and membrane electrode caused by excessive pressure. However, when the current pressing tooling is used in conjunction with the pressing equipment, it is impossible to identify the pressing state of the separation point, and the overall pressure can only be judged by the total pressure. The control over the uniformity and consistency of the pressing is poor, which can easily cause the risk of over-pressing of the pressing tooling, thereby reducing manufacturing stability. Utility Model Content

[0003] The present application provides a pressing tool, which is used to solve the problem that the pressing tool cannot identify the pressing state of the separation point when used in conjunction with the pressing equipment, and can only judge the overall pressure by the total pressure, thereby having little control over the uniformity and consistency of the pressing, which can easily cause the risk of over-pressing of the pressing tool and lead to poor manufacturing stability.

[0004] The present application discloses a laminating tool for laminating a piece to be laminarized. The laminating tool comprises a first laminating plate, a second laminating plate and a detection assembly. The first laminating plate is used to place the piece to be laminarized. The second laminating plate comprises a laminating portion and a mounting portion. The mounting portion is located on the side of the laminating portion away from the first laminating plate. The first laminating plate and the second laminating plate can approach or move away from each other. The detection assembly is mounted on the mounting portion. The detection assembly comprises a conductive member, an elastic member and a detection member. The detection member is mounted on the mounting portion, and the elastic member is connected to the conductive member. In the initial state, the conductive member is located on the side of the detection member facing the first laminating plate, and there is a preset distance between the conductive member and the detection member. The bottom surface of the conductive member is located between the first laminating plate and the laminating portion. In the process of the first laminating plate and the second laminating plate approaching each other, the laminating portion and the first laminating plate can apply pressure to the piece to be laminarized between the two, and the conductive member can be in contact with the detection member for conduction.

[0005] When the laminating tool is in the initial state, there is the above-mentioned preset distance between the conductive part and the detection part so that the two are not conducting. When it is necessary to laminarize the part to be laminarized, the first laminating plate is driven to move toward the second laminating plate so that the surface of the part to be laminarized facing the second laminating plate can abut against the bottom surface of the conductive part, thereby driving the conductive part to move relative to the detection part installed on the mounting portion, that is, the conductive part can move toward the detection part so that the conductive part and the detection part compress the elastic part, and then the conductive part overcomes the rebound force of the elastic part and continues to move toward the detection part until it contacts and conducts with the detection part. At this time, the first laminating plate moves a preset distance relative to the initial state. Therefore, when the first laminating plate of the laminating tool moves a preset distance toward the second laminating plate, the conductive part and the detection part switch from non-conduction to conduction. In this process, the preset distance of the movement of the first laminating plate can represent the pressing force of the first laminating plate and the second laminating plate on the part to be laminarized.

[0006] In this scheme, the compressive stress between the first pressing plate and the second pressing plate when the conductive part is in contact with the detection part can be defined as the upper limit value of the pressing force to which the part to be pressed is subjected. That is, when the conductive part is in contact with the detection part, the user can know that the maximum pressure that the part to be pressed can withstand has been reached, and the first pressing plate immediately stops moving, that is, the pressing tool no longer presses the part to be pressed, thereby reducing the risk of over-pressing of the pressing tool, thereby reducing the risk of damage to the pressing tool and the part to be pressed, improving the manufacturing stability, and thus being beneficial to improving the service life of the pressing tool while ensuring the pressing effect of the part to be pressed.

[0007] In this solution, the detection member at least includes a first detection member and a second detection member, the first detection member is located on the side of the second detection member facing the conductive member, and in an initial state, there is a first preset distance between the second detection member and the conductive member, and there is a second preset distance between the first detection member and the second detection member. The first detection member has a through hole, and in the process of the first pressing plate and the second pressing plate approaching each other, the conductive member can contact and conduct with the side wall of the through hole, and can pass through the through hole to contact and conduct with the second detection member.

[0008] In this scheme, during the process of the laminating tool laminating the part to be laminarized, that is, during the process of the first laminating plate and the second laminating plate approaching each other, the conductive member first contacts and conducts with the first detection member, at which time, the pressure applied by the first laminating plate and the second laminating plate to the part to be laminarized is the first pressure. The first pressure can be the effective pressure at which the pressure of the first laminating plate and the second laminating plate on the part to be laminarized begins to be applied. During the process of the first laminating plate and the second laminating plate continuing to approach each other, the conductive member passes through the through hole of the first detection member and contacts and conducts with the second detection member, at which time, the pressure applied by the first laminating plate and the second laminating plate to the part to be laminarized is the second pressure. The second pressure is greater than the first pressure. Therefore, the second pressure can be defined as the upper limit value of the laminating force to which the part to be laminarized is subjected. Based on this, when the conductive member contacts and conducts with the first detection member, it indicates that the part to be laminarized begins to be subjected to the laminating force, and when the conductive member contacts and conducts with the second detection member, it indicates that the laminating force to which the part to be laminarized is subjected reaches the limit value, and the laminating needs to be stopped. Therefore, by setting the first detection member and the second detection member with a second preset distance so as to be able to abut against the conductive member, it is possible to reflect whether the pressing pressure value of the pressing tool is within the normal working range, which is convenient for monitoring the working state of the pressing tool, and further facilitates the reasonable control of the pressure range applied to the workpiece to be pressed between the first pressing plate and the second pressing plate, so as to improve the reliability of the pressing tool.

[0009] In this solution, the first detection member is made of a flexible conductive material.

[0010] In this solution, when the conductive member moves toward the second pressing plate until it contacts the first detection member, at least part of the conductive member can extend out of the through hole and continue to move toward the second pressing plate, and the first detection member of the flexible conductive material is deformed under the extrusion of the conductive member and the elastic member, thereby improving the reliability of the first detection member extending through the through hole and conducting with the second detection member. In addition, when the first detection member of the flexible conductive material contacts the conductive member, the risk of wear of the conductive member and the first detection member during the movement of the conductive member relative to the first detection member can be reduced, thereby helping to increase the service life of the detection component.

[0011] In this solution, the inner diameter of the through hole is D1, satisfying 0.1mm≤D1≤0.8mm, the conductive member has a contact end for contacting the second detection member, and the outer diameter of the contact end is D2, satisfying 0.05mm≤D2≤0.6mm.

[0012] In this solution, when 0.1mm≤D1≤0.8mm and 0.05mm≤D2≤0.6mm, the inner diameter of the through hole and the outer diameter of the contact end are moderate, so that the connection reliability between the conductive part and the first detection part is high, while avoiding material waste and reducing production costs.

[0013] In this solution, the elastic member is a structure with a constant elastic coefficient along its axial direction.

[0014] In this scheme, when the pressing tool is pressing the workpiece to be pressed, the elastic coefficient of the elastic part is always at a fixed value, so as to deduce the numerical range of the deformation amount of the elastic part, and then set the second preset distance between the first detection part and the second detection part according to the numerical range of the deformation amount of the elastic part, and then judge whether the pressure applied by the pressing tool is within the range where the pressing tool can work normally by the movement distance of the conductive part, thereby improving the reliability of the pressing tool.

[0015] In this solution, the elastic member is a spring and is sleeved on the conductive member.

[0016] In this solution, along the axial direction of the elastic part, one end of the elastic part is connected to the first detection part, and the other end is used to be sleeved on the outside of the conductive part, so that the conductive part can squeeze the elastic part during movement, so that the elastic part has a certain resilience. When the first pressing plate is no longer pressed and moves away from the second pressing plate, the elastic part can drive the conductive part to return to its initial position, so that the detection part can be used to detect the next pressing process of the pressing tool, which is conducive to improving the convenience of using the pressing tool.

[0017] In this solution, the outer surface of the elastic member is insulated.

[0018] In this solution, the outer surface of the elastic member is insulated, which reduces the risk of short circuit caused by the conductive member directly connecting with the detection member through the elastic member when the conductive member has not moved to connect with the detection member, thereby further improving the reliability of the pressing tooling.

[0019] In this solution, the elastic member is made of insulating material, or the surface of the elastic member has an insulating coating.

[0020] In this solution, the elastic part can be made of insulating materials such as epoxy resin and glass fiber materials, or an insulating coating such as polytetrafluoroethylene can be sprayed on the elastic part made of stainless steel to make the elastic part insulating.

[0021] In this solution, the conductive member includes a body and a matching portion connected to the body, the elastic member is connected to the body, the body is made of insulating material, the matching portion is made of conductive material, and is used to contact and conduct with the detection member.

[0022] In this solution, the detection component includes an indicator light, and the main body is used to be sleeved with the elastic part. The matching part, the detection part and the indicator light can form a closed loop. The matching part is electrically connected to the indicator light, which can reduce the length of the loop, thereby shortening the time when the indicator light is on, thereby improving the sensitivity of the detection component for detecting the pressing tool, so that when the pressing pressure value of the pressing tool is at the maximum pressure value, the power supply can be immediately cut off to stop the first pressing plate, thereby reducing the risk of over-pressing of the pressing tool.

[0023] In this solution, the conductive member is a cone, a truncated cone or a pyramid.

[0024] In this solution, the cross-sectional area of ​​the conductive member gradually decreases in the direction close to the second pressing plate, so that at least a portion of the conductive member toward the second pressing plate can extend through the through hole of the first detection member and contact the second detection member, further improving the reliability of the detection assembly. At the same time, the conductive member is a cone, a truncated cone or a pyramid, which can reduce material consumption and thus reduce the production cost of the conductive member.

[0025] In this solution, the pressing tool further includes an indicator light, and the indicator light is electrically connected to the detection member and the conductive member.

[0026] In this scheme, when the conductive part is connected to the detection part, the indicator light lights up. The indicator light is used to feedback the working status of the pressing tooling, so as to feedback whether the pressing pressure of the pressing tooling is within the normal working range, thereby reducing the risk of damage to the tooling and the parts to be pressed after the pressing pressure exceeds the normal working range, thereby improving the working reliability of the pressing tooling, which is beneficial to increasing the service life of the pressing tooling.

[0027] In this embodiment, the detection member includes at least a first detection member and a second detection member, and the indicator light includes at least a first indicator light and a second indicator light. The first indicator light is electrically connected to the first detection member and the conductive member, and the second indicator light is electrically connected to the second detection member and the conductive member.

[0028] In this solution, the first indicator light, the first detection member and the conductive member form a first circuit, and the second indicator light, the second detection member and the conductive member form a second circuit.

[0029] When the conductive member is connected to the first detection member, the first circuit is connected, and the first indicator light is on, indicating that the pressing pressure value of the pressing tool on the part to be pressed is within the normal working range. When the conductive member is connected to the second detection member, the second circuit is connected, and the second indicator light is on, indicating that the pressing pressure value of the pressing tool on the part to be pressed is the maximum pressure value. Therefore, the first indicator light and the second indicator light can easily identify the pressing state of the pressing tool.

[0030] In this solution, the parts to be pressed together are the electrode plates, the adhesive and the membrane electrode assembly. When the first pressing plate and the second pressing plate are brought closer to each other, the electrode plates and the membrane electrode assembly can be bonded together by the adhesive.

[0031] In this scheme, when the pressing tool is used to press the electrode plates, adhesives and membrane electrode assemblies, the first pressing plate is driven to move toward the second pressing plate so that the surface of the electrode plate facing the second pressing plate can abut against the bottom surface of the conductive member, thereby driving the conductive member to move relative to the detection member, and then the conductive member continues to move toward the detection member until it contacts and conducts with the detection member, that is, the movement stroke of the conductive member is a preset distance. At this time, the pressing pressure value of the pressing tool used to press the electrode plates, adhesives and membrane electrode assemblies is the maximum pressure value, and then the first pressing plate stops moving immediately, and the pressing tool stops working, thereby reducing the risk of over-pressing of the pressing tool, and then reducing the risk of damage to the pressed electrode plates, adhesives and membrane electrode assemblies due to over-pressing, which is beneficial to improving the reliability of the pressing tool used to press the electrode plates, adhesives and membrane electrode assemblies. At the same time, the pressing tool is used in the process of pressing the plate, adhesive and membrane electrode assembly, and a hot melting process is required to melt the adhesive between the plate and the membrane electrode assembly so that the adhesive has good adhesion. The above-mentioned detection components have good heat resistance, so that the plate, adhesive and membrane electrode assembly can be hot-melted during the pressing process, thereby facilitating the connection of the plate, adhesive and membrane electrode assembly, thereby improving the reliability and stability of production.

[0032] It should be understood that the foregoing general description and the following detailed description are exemplary only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 This is a schematic structural diagram of a pressing tool provided in the present application in a specific embodiment;

[0034] Figure 2 A schematic diagram of the structure of a detection component provided in the present application in a specific embodiment;

[0035] Figure 3 This is a schematic structural diagram of a detection component provided in the present application in another specific embodiment;

[0036] Figure 4 This is a schematic structural diagram of a detection component provided in the present application in another specific embodiment;

[0037] Figure 5 for Figure 3 A schematic diagram of the structure of the first detection member and the conductive member;

[0038] Figure 6 This is a schematic structural diagram of a detection component provided in the present application in another specific embodiment;

[0039] Figure 7 This is a schematic structural diagram of the detection component provided in the present application in another specific embodiment.

[0040] Description of reference numerals:

[0041] 1- Pressing tooling;

[0042] 11- first pressing plate;

[0043] 12- second pressing plate;

[0044] 121-pressing part;

[0045] 122-installation part;

[0046] 13-Detection components;

[0047] 131- conductive member;

[0048] 1311-Ontology;

[0049] 1312-cooperation department;

[0050] 1313-contact end;

[0051] 132- elastic member;

[0052] 133-Testing parts;

[0053] 1331-first detection part;

[0054] 1331a-through hole;

[0055] 1332-second detection piece;

[0056] 14-Indicator light;

[0057] 141-first indicator light;

[0058] 142- second indicator light;

[0059] 2-Parts to be pressed.

[0060] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application. DETAILED DESCRIPTION

[0061] In order to better understand the technical solution of the present application, the embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0062] In a specific embodiment, the present application is further described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0063] It should be clear that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0064] The terms used in the embodiments of the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. The singular forms "a", "said" and "the" used in the embodiments of the present application and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings.

[0065] It should be understood that the term "and / or" used in this article is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0066] It should be noted that the directional words such as "upper", "lower", "left", and "right" described in the embodiments of the present application are described at the angles shown in the accompanying drawings and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element.

[0067] The present application embodiment provides a pressing tool 1 for pressing a part 2 to be pressed. Figure 1 As shown, the laminating tool 1 includes a first laminating plate 11, a second laminating plate 12 and a detection assembly 13. The first laminating plate 11 is used to place the workpiece 2 to be laminarized. The second laminating plate 12 includes a laminating portion 121 and a mounting portion 122. The mounting portion 122 is located on the side of the laminating portion 121 away from the first laminating plate 11. The first laminating plate 11 and the second laminating plate 12 can be close to or away from each other. The detection assembly 13 is mounted on the mounting portion 122. Figure 2As shown, the detection assembly 13 includes a conductive member 131, an elastic member 132 and a detection member 133. The detection member 133 is installed on the installation portion 122, and the elastic member 132 is connected to the conductive member 131. In the initial state, the conductive member 131 is located on the side of the detection member 133 facing the first pressing plate 11, and there is a preset distance H between the conductive member 131 and the detection member 133, and the bottom surface of the conductive member 131 is located between the first pressing plate 11 and the pressing portion 121. In the process of the first pressing plate 11 and the second pressing plate 12 approaching each other, the pressing portion 121 and the first pressing plate 11 can apply pressure to the to-be-pressed member 2 located therebetween, and the conductive member 131 can be in contact with the detection member 133 for conduction.

[0068] When the laminating tool 1 is in the initial state, there is the above-mentioned preset distance H between the conductive member 131 and the detection member 133 so that the two are not conductive. When it is necessary to laminarize the part 2 to be laminarized, the first laminating plate 11 is driven to move toward the second laminating plate 12, so that the surface of the part 2 to be laminarized facing the second laminating plate 12 can abut against the bottom surface of the conductive member 131, thereby driving the conductive member 131 to move relative to the detection member 133 installed on the mounting portion 122, that is, the conductive member 131 can move toward the detection member 133, so that the conductive member 131 and the detection member 133 compress the elastic member 132, and then the conductive member 131 overcomes the rebound force of the elastic member 132 and continues to move toward the detection member 133 until it contacts and conducts with the detection member 133. At this time, the first laminating plate 11 moves the preset distance H relative to the initial state. Therefore, when the first pressing plate 11 of the pressing tool 1 moves a preset distance H toward the second pressing plate 12, the conductive member 131 and the detecting member 133 switch from being non-conductive to being conductive. In this process, the preset distance H moved by the first pressing plate 11 can represent the pressing force of the first pressing plate 11 and the second pressing plate 12 on the part 2 to be pressed.

[0069] In a specific embodiment, the compressive stress between the first pressing plate 11 and the second pressing plate 12 when the conductive member 131 and the detecting member 133 are in contact and connected can be defined as the upper limit value of the pressing force exerted on the part 2 to be pressed, that is, when the conductive member 131 and the detecting member 133 are in contact and connected, the user can know that the maximum pressure that the part 2 to be pressed has been reached, and the first pressing plate 11 immediately stops moving, that is, the pressing tool 1 no longer presses the part 2 to be pressed, thereby reducing the risk of over-pressing of the pressing tool 1, thereby reducing the risk of damage to the pressing tool 1 and the part 2 to be pressed, improving the manufacturing stability, and thus being beneficial to improving the service life of the pressing tool 1 while ensuring the pressing effect of the part 2 to be pressed.

[0070] In addition, during the lamination process of the lamination tool 1, the distance that the elastic member 132 is compressed (i.e., the rebound force of the elastic member 132 after being compressed) can also indicate the magnitude of the lamination force of the first lamination plate 11 and the second lamination plate 12 on the part 2 to be lamination. For the elastic member 132 with a known elastic coefficient, when the compression amount is known, the rebound force of the elastic member 132 during the lamination process can be obtained, thereby obtaining the lamination force of the first lamination plate 11 and the second lamination plate 12 on the part 2 to be lamination, so that the user can know the lamination force on the part 2 to be lamination, further reduce the risk of over-lamination of the tool, and reduce the risk of damage to the lamination tool 1, thereby improving the stability of the production of the part 2 to be lamination. At the same time, during the lamination process, the elastic member 132 can also play a buffering role, reducing the impact of the first lamination plate 11 and the second lamination plate 12 on the part 2 to be lamination.

[0071] In a possible implementation, Figure 1 and Figure 3 As shown, the detection member 133 at least includes a first detection member 1331 and a second detection member 1332. The first detection member 1331 is located on the side of the second detection member 1332 facing the conductive member 131. In an initial state, there is a first preset distance H1 between the conductive member 131 and the second detection member 1332, and there is a second preset distance H2 between the first detection member 1331 and the second detection member 1332. At the same time, in the initial state, there is a third preset distance between the first detection member 1331 and the conductive member 131, and the third preset distance is the difference between the first preset distance H1 and the second preset distance H2.

[0072] The first detection member 1331 has a through hole 1331a. When the first pressing plate 11 and the second pressing plate 12 are approaching each other, the conductive member 131 can contact and conduct with the side wall of the through hole 1331a, and can pass through the through hole 1331a to contact and conduct with the second detection member 1332.

[0073] During the process of the laminating tool 1 laminating the workpiece 2 to be laminarized, that is, during the process of the first laminating plate 11 and the second laminating plate 12 approaching each other, the conductive member 131 first contacts and conducts with the first detection member 1331. At this time, the pressure applied by the first laminating plate 11 and the second laminating plate 12 to the workpiece 2 to be laminarized is the first pressure P1. In a specific embodiment, the first pressure P1 can be the effective pressure at which the pressure of the first laminating plate 11 and the second laminating plate 12 on the workpiece 2 to be laminarized begins to be applied. During the process of the first laminating plate 11 and the second laminating plate 12 continuing to approach each other, the conductive member 131 passes through the through hole 1331a of the first detection member 1331 and contacts and conducts with the second detection member 1332. At this time, the pressure applied by the first laminating plate 11 and the second laminating plate 12 to the workpiece 2 to be laminarized is the second pressure P2. The second pressure P2 is greater than the first pressure P1. Therefore, the second pressure P2 can be defined as the upper limit value of the laminating force to which the workpiece 2 to be laminarized is subjected. Based on this, when the conductive member 131 is in contact with the first detection member 1331 and is connected, it indicates that the part 2 to be pressed begins to be subjected to the pressing force. When the conductive member 131 is in contact with the second detection member 1332 and is connected, it indicates that the pressing force on the part 2 to be pressed reaches the limit value and the pressing needs to be stopped.

[0074] Specifically, first, the pressure range required for the pressing tool 1 to press the part 2 to be pressed is preset to be P1-P2, the bottom area of ​​the conductive part 131 is measured to be S1, the elastic coefficient of the elastic part 132 is K, and according to the pressure formula Fn=P·S, the pressing force range required for the pressing tool 1 to press the part 2 to be pressed is Fn1-Fn2. According to the formula Fn=ΔL·K, (ΔL is the deformation of the elastic part 132), it can be calculated that the deformation range of the elastic part 132 within this pressure range (Fn1-Fn2) is ΔL1-ΔL2, and then the second preset distance H2 between the first detection part 1331 and the second detection part 1332 is set according to the range of ΔL1-ΔL2.

[0075] When the deformation amount of the elastic member 132 is ΔL1, the conductive member 131 is connected to the first detection member 1331 to prompt that the pressure value of the pressing tool 1 used to press the part 2 to be pressed has entered the effective range, indicating that the pressing tool 1 is in a normal working state. When the deformation amount of the elastic member 132 is ΔL2, the conductive member 131 is connected to the second detection member 1332. At this time, it is necessary to stop the pressing tool 1 from working to reduce the risk of damage to the pressing tool 1 so that the pressing tool 1 can be used for a long time. In summary, the third preset distance is related to the preset pressing pressure range P1-P2 of the pressing tool 1, and the second preset distance H2 is related to the preset pressing pressure range P1-P2 of the pressing tool 1 and the elastic coefficient K of the elastic member 132.

[0076] Therefore, by setting the first detection member 1331 and the second detection member 1332 with the second preset distance H2 to be able to abut against the conductive member 131, it is possible to reflect whether the pressing pressure value of the pressing tool 1 is within the normal working range, which is convenient for monitoring the working state of the pressing tool 1, and further facilitates the reasonable control of the pressure range applied to the workpiece 2 to be pressed between the first pressing plate 11 and the second pressing plate 12, so as to improve the working reliability of the pressing tool 1.

[0077] Among them, the first detection member 1331 is provided with a through hole 1331a, so that the side wall of the conductive member 131 can abut against the inner wall of the through hole 1331a of the first detection member 1331, so that the conductive member 131 can be connected with the first detection member 1331, and then the conductive member 131 continues to move toward the second pressing plate 12, so that the conductive member 131 can extend through the through hole 1331a and contact and be connected with the second detection member 1332, and then the degree of pressing can be identified based on the feedback of the distance moved by the conductive member 131, which is convenient for real-time monitoring of the working pressure of the pressing tooling 1, and is beneficial to improving the reliability and stability of the pressing process of the part 2 to be pressed.

[0078] In a possible implementation, Figure 6 As shown, the pressing tool 1 also includes an indicator light 14, and the indicator light 14 is electrically connected to the detection member 133 and the conductive member 131. In this embodiment, when the conductive member 131 is connected to the detection member 133, the indicator light 14 lights up, and the indicator light 14 is used to feedback the working state of the pressing tool 1, so as to feedback whether the pressing pressure of the pressing tool 1 is within the normal working range, reduce the risk of damage to the tool and the workpiece 2 to be pressed after the pressing pressure exceeds the normal working range, thereby improving the working reliability of the pressing tool 1, which is conducive to improving the service life of the pressing tool 1.

[0079] In a possible implementation, Figure 6 As shown, the indicator light 14 at least includes a first indicator light 141 and a second indicator light 142, the first indicator light 141 is electrically connected to the first detection member 1331 and the conductive member 131, and the second indicator light 142 is electrically connected to the second detection member 1332 and the conductive member 131. That is, the first indicator light 141, the first detection member 1331 and the conductive member 131 form a first circuit, and the second indicator light 142, the second detection member 1332 and the conductive member 131 form a second circuit.

[0080] In this embodiment, when the conductive member 131 is connected to the first detection member 1331, the first circuit is connected, and the first indicator light 141 is lit, indicating that the pressing pressure value of the pressing tool 1 on the part to be pressed 2 is within the normal working range. When the conductive member 131 is connected to the second detection member 1332, the second circuit is connected, and the second indicator light 142 is lit, indicating that the pressing pressure value of the pressing tool 1 on the part to be pressed 2 is the maximum pressure value. Therefore, the first indicator light 141 and the second indicator light 142 can easily identify the pressing state of the pressing tool 1.

[0081] The first indicator light 141 and the second indicator light 142 may light up in different colors to indicate the pressing state of the pressing tool 1. The first indicator light 141 may light up in green to indicate that the pressing pressure value of the pressing tool 1 is within the normal working range. The second indicator light 142 may light up in red to indicate that the pressing pressure value of the pressing tool 1 is at the maximum pressure value, and the pressing tool 1 needs to stop working immediately.

[0082] Among them, Figure 2-Figure 4 As shown, the elastic member 132 is a structure with a constant elastic coefficient along its axial direction. That is, in the process of the pressing tool 1 pressing the workpiece 2 to be pressed, the elastic coefficient K of the elastic member 132 is always at a fixed value, so as to deduce the numerical range ΔL1-ΔL2 of the deformation amount of the elastic member 132, and then to facilitate setting the second preset distance H2 between the first detection member 1331 and the second detection member 1332 according to ΔL1-ΔL2, and then to judge whether the pressure applied by the pressing tool 1 is within the range within which the pressing tool 1 can work normally by the distance moved by the conductive member 131, so as to improve the reliability of the pressing tool 1.

[0083] In a possible implementation, Figure 1 and Figure 3 As shown, the elastic member 132 is a spring and is sleeved on the conductive member 131. At the same time, along the axial direction of the elastic member 132, one end of the elastic member 132 is connected to the first detection member 1331, and the other end is used to sleeve on the outside of the conductive member 131, so that the conductive member 131 can squeeze the elastic member 132 during the movement, so that the elastic member 132 has a certain resilience. When the first pressing plate 11 is no longer pressed and moves away from the second pressing plate 12, the elastic member 132 can drive the conductive member 131 to reset to the initial position, so that the detection member 133 can be used to detect the next pressing process of the pressing tool 1, which is conducive to improving the convenience of using the pressing tool 1.

[0084] Specifically, the elastic member 132 is a disc spring, and the elastic coefficient K of the disc spring is a fixed value. When the elastic member 132 is a disc spring, it is convenient to set the second preset distance H2 between the first detection member 1331 and the second detection member 1332 .

[0085] In a possible embodiment, the outer diameter dimension B1 of the bottom surface of the conductive member 131 satisfies 0.25mm≤B1≤5mm, the outer diameter dimension B2 of the elastic member 132 satisfies 0.25mm≤B2≤5mm, and the dimension B1 is approximately the same as the dimension B2, so that the elastic member 132 can be sleeved on the end of the conductive member 131 away from the first detection member 1331, which is beneficial to improve the stability of the connection between the conductive member 131 and the elastic member 132. At the same time, the bottom area of ​​the bottom surface of the conductive member 131 can be approximately the same as the cross-sectional area of ​​the outer diameter of the elastic member 132, so that the compressive stress generated between the first pressing plate 11 and the second pressing plate 12 can be calculated by the above formula, and the calculation error can be reduced, so as to reasonably arrange the second preset distance H2 between the first detection member 1331 and the second detection member 1332, which is beneficial to improve the reliability of the detection component 13.

[0086] In addition, the wire diameter C1 of the elastic member 132 satisfies 0.05 mm ≤ C1 ≤ 0.5 mm. The diameter B3 of the first detection member 1331 ≥ the outer diameter B2 of the elastic member 132, so as to reduce the risk that the first detection member 1331 is squeezed by the conductive member 131 and then extends into the elastic member 132 during the movement of the conductive member 131, thereby facilitating the improvement of the reliability of the detection assembly 13.

[0087] In any of the above embodiments, Figure 2 As shown, the outer surface of the elastic member 132 is insulated, which reduces the risk of short circuit caused by the conductive member 131 directly connecting with the detection member 133 through the elastic member 132 when the conductive member 131 has not moved to connect with the detection member 133, thereby further improving the reliability of the pressing tool 1.

[0088] In a possible implementation, Figure 2 As shown, the elastic member 132 is an insulating material, or the surface of the elastic member 132 has an insulating coating, so that the elastic member 132 cannot conduct electricity. Specifically, the elastic member 132 can be prepared from insulating materials such as epoxy resin and glass fiber materials, or an insulating coating such as polytetrafluoroethylene can be sprayed on the elastic member 132 made of stainless steel. So that the elastic member 132 has insulating properties. The present application does not limit the material of the elastic member 132, as long as the elastic member 132 has insulating properties.

[0089] In a possible implementation, Figure 3 and Figure 4As shown, the conductive member 131 is a cone, a truncated cone or a pyramid. That is, along the direction close to the second pressing plate 12, the cross-sectional area of ​​the conductive member 131 gradually decreases, so that at least part of the structure of the conductive member 131 toward the second pressing plate 12 can extend through the through hole 1331a of the first detection member 1331 and contact the second detection member 1332, further improving the reliability of the detection assembly 13. At the same time, the conductive member 131 is a cone, a truncated cone or a pyramid, which can reduce material consumption, thereby reducing the production cost of the conductive member 131.

[0090] Specifically, if Figure 3 In the embodiment shown, the elastic member 132 can be a disc spring with a wire diameter of 0.1 mm, an outer diameter of 1 mm, and an elastic coefficient K = 1 N / mm. The conductive member 131 is a cone, and the outer diameter of the end where the conductive member 131 and the elastic member 132 are connected is 1 mm, that is, the bottom diameter of the conductive member 131 is 1 mm, and the bottom area S is calculated to be 0.785 mm. 2 , and the preset pressure range is P1=0.15MPa-P2=0.45MPa, and then the pressing force of the pressing fixture 1 is calculated to be Fn1=0.11775N-Fn2=0.35325N, and then the deformation of the elastic member 132 is calculated to be ΔL1=0.11775mm-ΔL2=0.35325mm. When the deformation of the elastic member 132 is ΔL1=0.11775mm, the side wall of the conductive member 131 can contact and communicate with the first detection member 1331. At this time, the pressing pressure value of the pressing fixture 1 is within the effective working range, that is, the pressing pressure of the pressing fixture 1 is P1=0.15MP, and at this time, the distance of the conductive member 131 protruding from the surface of the first detection member 1331 toward the first pressing plate 11 can be 0.0355mm. When the deformation amount ΔL2 of the elastic member 132 is 0.35325 mm, the conductive member 131 contacts and connects with the second detection member 1332 . At this time, the pressing pressure value of the pressing tool 1 is the maximum pressure value, that is, the pressing pressure of the pressing tool 1 is P2 = 0.45 MPa, thereby stopping the movement of the pressing tool 1 .

[0091] Specifically, if Figure 4 In another embodiment shown, the elastic member 132 can be a disc spring with a wire diameter of 0.2 mm, an outer diameter of 2.5 mm, and an elastic coefficient K = 3 N / mm. The conductive member 131 is a truncated cone, and the outer diameter of the end of the conductive member 131 connected to the elastic member 132 is 2.5 mm, that is, the bottom diameter of the conductive member 131 is 2.5 mm, and the bottom area S is calculated to be 4.9 mm. 2, and the preset pressure range is P1=1MPa-P2=2MPa, and then the pressing force of the pressing fixture 1 is calculated to be Fn1=4.9N-Fn2=9.8N, and then the deformation of the elastic member 132 is calculated to be ΔL1=1.635mm-ΔL2=3.27mm. When the deformation of the elastic member 132 is ΔL1=1.635mm, the side wall of the conductive member 131 can contact and communicate with the first detection member 1331. At this time, the pressing pressure value of the pressing fixture 1 is within the effective working range, that is, the pressing pressure of the pressing fixture 1 is P1=1MP, and at this time, the distance of the conductive member 131 protruding from the surface of the first detection member 1331 toward the first pressing plate 11 side can be 0.135mm. When the deformation amount ΔL2 of the elastic member 132 is 3.27 mm, the conductive member 131 contacts and connects with the second detection member 1332 . At this time, the pressing pressure value of the pressing tool 1 is the maximum pressure value, that is, the pressing pressure of the pressing tool 1 is P2 = 2 MPa, thereby stopping the movement of the pressing tool 1 .

[0092] In another possible implementation, Figure 7 As shown, the conductive member 131 includes a body 1311 and a matching portion 1312 connected to the body 1311 . The elastic member 132 is connected to the body 1311 . The body 1311 is made of insulating material. The matching portion 1312 is made of conductive material and is used to contact and conduct with the detection member 133 .

[0093] In this embodiment, the main body 1311 is used to be sleeved with the elastic member 132, and the matching portion 1312, the detection member 133 and the indicator light 14 can form a closed loop. Compared with the above embodiment, the matching portion 1312 is electrically connected to the indicator light 14, which can reduce the length of the loop, thereby shortening the time when the indicator light 14 is on, thereby improving the sensitivity of the detection component 13 for detecting the pressing tool 1, so that when the pressing pressure value of the pressing tool 1 is at the maximum pressure value, the power supply can be immediately cut off, and the first pressing plate 11 stops running, thereby reducing the risk of over-pressing of the pressing tool 1.

[0094] In a possible implementation, Figure 3As shown, the first detection member 1331 can be a flexible conductive material. When the conductive member 131 moves toward the second pressing plate 12 until it contacts the first detection member 1331, at least part of the structure of the conductive member 131 can extend out of the through hole 1331a and continue to move toward the second pressing plate 12. The first detection member 1331 made of the flexible conductive material is deformed under the extrusion of the conductive member 131 and the elastic member 132, thereby improving the reliability of the first detection member 1331 being able to extend through the through hole 1331a and conduct with the second detection member 1332. In addition, when the first detection member 1331 made of the flexible conductive material contacts the conductive member 131, the risk of wear between the conductive member 131 and the first detection member 1331 can be reduced during the movement of the conductive member 131 relative to the first detection member 1331, thereby facilitating the improvement of the service life of the detection assembly 13.

[0095] At the same time, the second detection member 1332 can be made of a rigid conductive material to reduce the possibility of deformation of the second detection member 1332 under the action of the abutment of the conductive member 131 after the conductive member 131 and the second detection member 1332 are connected to each other, thereby avoiding the risk of the conductive member 131 moving a distance greater than the first preset distance H1, thereby reducing the risk of over-pressing of the pressing tool 1, thereby improving the accuracy of the detection component 13 in feedbacking the pressing state, and further improving the reliability of the pressing tool 1.

[0096] Among them, the first detection component 1331 can be made of conductive silicone material, and the second detection component 1332 can be made of stainless steel. The present application does not limit the materials of the first detection component 1331 and the second detection component 1332, as long as the first detection component 1331 is a flexible material, the second detection component 1332 is a rigid material, and both the first detection component 1331 and the second detection component 1332 are conductive.

[0097] In a possible implementation, Figure 5 As shown, the inner diameter of the through hole 1331a is D1, satisfying 0.1mm≤D1≤0.8mm, and the conductive member 131 has a contact end 1313 for contacting the second detection member 1332, and the outer diameter of the contact end 1313 is D2, satisfying 0.05mm≤D2≤0.6mm.

[0098] Wherein, D2≤D1, the size of D1 can be 0.1mm, 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.6mm, 0.7mm, 0.8mm, etc. The size of D2 can be 0.05mm, 0.1mm, 0.15mm, 0.2mm, 0.25mm, 0.3mm, 0.35mm, 0.4mm, 0.45mm, 0.5mm, 0.55mm, 0.6mm, etc.

[0099] Therefore, when D1 is too small, the inner diameter of the through hole 1331a will be too small, increasing the risk that the contact end 1313 of the conductive member 131 cannot extend through the through hole 1331a to conduct with the second detection member 1332; when D1 is too large, the inner diameter of the through hole 1331a will be too large, increasing the risk that the contact end 1313 of the conductive member 131 cannot conduct with the inner wall of the through hole 1331a, and reducing the reliability of detecting the pressing state of the pressing tool 1. When D2 is too small, the outer diameter of the contact end 1313 is too small, and the contact area between the contact end 1313 and the inner wall of the through hole 1331a is small, thereby increasing the risk that the contact end 1313 of the conductive member 131 cannot be connected to the inner wall of the through hole 1331a; when D2 is too large, the outer diameter of the contact end 1313 is too large, thereby causing the inner diameter of the through hole 1331a connected to the contact end 1313 to be too large, making the volumes of the first detection member 1331 and the conductive member 131 too large, thereby causing the volume of the detection component 13 to be too large, resulting in material waste and increased production costs. In this embodiment, when 0.1mm≤D1≤0.8mm, 0.05mm≤D2≤0.6mm, the inner diameter of the through hole 1331a and the outer diameter of the contact end 1313 are moderate in size, so that the reliability of the connection between the conductive member 131 and the first detection member 1331 is high, while avoiding material waste and reducing production costs.

[0100] like Figure 4 Figure 5 In the illustrated embodiment, D1 may be 0.8 mm, and D2 may be 0.5 mm.

[0101] In a possible implementation, Figure 1 and Figure 2 As shown, the parts to be pressed 2 are the electrode plates, adhesives and membrane electrode assemblies. When the first pressing plate 11 and the second pressing plate 12 are brought closer to each other, the electrode plates and the membrane electrode assemblies can be bonded by the adhesives.

[0102] When the pressing tool 1 is used to press the electrode plates, adhesives and membrane electrode assemblies, the first pressing plate 11 is driven to move toward the second pressing plate 12 so that the surface of the electrode plate facing the second pressing plate 12 can abut against the bottom surface of the conductive member 131, thereby driving the conductive member 131 to move relative to the detection member 133, and then the conductive member 131 continues to move toward the detection member 133 until it contacts and conducts with the detection member 133, that is, the movement stroke of the conductive member 131 is a preset distance H. At this time, the pressing pressure value of the pressing tool 1 for pressing the electrode plates, adhesives and membrane electrode assemblies is the maximum pressure value, and then the first pressing plate 11 stops moving immediately, and the pressing tool 1 stops working, thereby reducing the risk of over-pressing of the pressing tool 1, and then reducing the risk of damage to the pressed electrode plates, adhesives and membrane electrode assemblies due to over-pressing, which is beneficial to improving the reliability of the pressing tool 1 for pressing the electrode plates, adhesives and membrane electrode assemblies. At the same time, the pressing tool 1 is used in the process of pressing the electrode plate, the adhesive and the membrane electrode assembly, and a hot melting process is required to heat-melt the adhesive between the electrode plate and the membrane electrode assembly so that the adhesive has good adhesion. The detection component 13 in any of the above embodiments has good heat resistance, so that the electrode plate, the adhesive and the membrane electrode assembly can be hot-melted during the pressing process, thereby facilitating the connection of the electrode plate, the adhesive and the membrane electrode assembly, thereby improving the reliability and stability of production.

[0103] The above is only a specific implementation of the embodiment of the present application, but the protection scope of the embodiment of the present application is not limited thereto, and any changes or replacements within the technical scope disclosed in the embodiment of the present application should be included in the protection scope of the embodiment of the present application. Therefore, the protection scope of the embodiment of the present application should be based on the protection scope of the claims.

Claims

1. A pressing tool, used for pressing parts to be pressed, characterized in that: The pressing tool comprises: A first pressing plate, used for placing the parts to be pressed; A second pressing plate, wherein the second pressing plate comprises a pressing portion and a mounting portion, wherein the mounting portion is located on a side of the pressing portion away from the first pressing plate, and the first pressing plate and the second pressing plate can be close to or away from each other; A detection component, the detection component is installed on the installation part, the detection component comprises a conductive member, an elastic member and a detection member, the detection member is installed on the installation part, and the elastic member is connected to the conductive member; In an initial state, the conductive member is located on a side of the detection member facing the first pressing plate, and there is a preset distance between the conductive member and the detection member, and the bottom surface of the conductive member is located between the first pressing plate and the pressing portion; When the first pressing plate and the second pressing plate are approaching each other, the pressing portion and the first pressing plate can apply pressure to the to-be-pressed component located therebetween, and the conductive component can be in contact with and conduct with the detection component.

2. The pressing tool according to claim 1, characterized in that: The detection member at least comprises a first detection member and a second detection member, the first detection member is located on a side of the second detection member facing the conductive member, and in an initial state, there is a first preset distance between the second detection member and the conductive member, and there is a second preset distance between the first detection member and the second detection member; The first detection member has a through hole, and when the first pressing plate and the second pressing plate are approaching each other, the conductive member can contact and conduct with the side wall of the through hole, and can pass through the through hole to contact and conduct with the second detection member.

3. The pressing tool according to claim 2, characterized in that: The first detection member is made of flexible conductive material.

4. The pressing tool according to claim 2, characterized in that: The inner diameter of the through hole is D1, satisfying 0.1mm≤D1≤0.8mm. The conductive member has a contact end for contacting the second detection member. The outer diameter of the contact end is D2, satisfying 0.05mm≤D2≤0.6mm.

5. The pressing tool according to any one of claims 1 to 4, characterized in that: The elastic member is a structure with a constant elastic coefficient along its axial direction.

6. The pressing tool according to claim 5, characterized in that: The elastic member is a spring and is sleeved on the conductive member.

7. The pressing tool according to any one of claims 1 to 4, characterized in that: The outer surface of the elastic member is insulated.

8. The pressing tool according to claim 7, characterized in that: The elastic member is made of insulating material, or the surface of the elastic member has an insulating coating.

9. The pressing tool according to any one of claims 1 to 4, characterized in that: The conductive member comprises a main body and a matching portion connected to the main body, the elastic member is connected to the main body, the main body is made of insulating material, the matching portion is made of conductive material and is used to contact and conduct with the detection member.

10. The pressing tool according to any one of claims 1 to 4, characterized in that: The conductive member is a cone, a truncated cone or a pyramid.

11. The pressing tool according to any one of claims 1 to 4, characterized in that: The pressing tool also includes an indicator light, which is electrically connected to the detection member and the conductive member.

12. The pressing tool according to claim 11, characterized in that: The detection member includes at least a first detection member and a second detection member, and the indicator light includes at least a first indicator light and a second indicator light, the first indicator light is electrically connected to the first detection member and the conductive member, and the second indicator light is electrically connected to the second detection member and the conductive member.

13. The pressing tool according to any one of claims 1 to 4, characterized in that: The parts to be pressed together are the electrode plates, the adhesive and the membrane electrode assembly. When the first pressing plate and the second pressing plate are brought closer to each other, the electrode plates and the membrane electrode assembly can be bonded together by the adhesive.

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