Diaphragm detection equipment and gas tank head assembly equipment

Abstract

The invention provides diaphragm detection equipment and gas tank head assembling equipment, the diaphragm detection equipment comprises a conveying mechanism and a positive and negative detection mechanism, the conveying mechanism is provided with at least one tool, the tool is used for placing materials, and the tool and the positive and negative detection mechanism are matched with each other to realize the detection of the positive and negative of a diaphragm. The positive and negative detection mechanism comprises a first driving piece, a first displacement sensor and a first pressing block, displacement detected by the first displacement sensor is converted into the protruding height of the diaphragm, so that the positive and negative states of the diaphragm are judged, the detection cost is reduced, and the detection efficiency is improved. The first avoiding groove of the first pressing block and the fourth avoiding groove of the tool can avoid the protruding structure of the diaphragm when the first pressing block and the tool clamp and fix the diaphragm, and therefore the diaphragm is prevented from being damaged in the detection process.

Description

Technical Field

[0001] This application relates to the field of expansion valve processing technology, specifically to a diaphragm testing device and a gas box head assembly device. Background Technology

[0002] The expansion valve is an important component of the evaporator and is commonly used in automotive air conditioning refrigeration systems. The gas box head is a major component of the thermostatic expansion valve. The gas box head consists of a gas box seat, a gas box cover, and a diaphragm. The diaphragm is located between the gas box seat and the gas box cover. The diaphragm has a specific shape and structure to achieve its function. During assembly, it is necessary to distinguish between the front and back. If the assembly is incorrect, it will affect the normal function of the expansion valve. Therefore, current assembly equipment usually uses vision technology to identify the front and back of the diaphragm, but this is costly. Summary of the Invention

[0003] In view of this, this application provides a diaphragm testing device and a gas box head assembly device to help solve the problem of high testing costs in the prior art.

[0004] This application provides a membrane inspection device suitable for membranes with at least a portion of their surface convex to one side, the membrane inspection device comprising:

[0005] A conveying mechanism, wherein the conveying mechanism has at least one tooling for placing materials;

[0006] A forward and reverse detection mechanism includes a first driving member, a first displacement sensor, and a first pressing block. The first pressing block and the first displacement sensor can move synchronously. The first driving member can drive the first pressing block and the first displacement sensor to move closer to or away from the tooling. The first pressing block has a first clearance groove on the side facing the tooling. At least a portion of the first displacement sensor is located in the first clearance groove, and the first displacement sensor can abut against the material.

[0007] The tooling has a fourth clearance groove on the side facing the first pressure block. Along the height direction of the diaphragm detection device, the projection of the first clearance groove and the projection of the fourth clearance groove overlap, and at least part of the projection of the first displacement sensor is located in the overlapping part.

[0008] The membrane inspection equipment provided in this application achieves the detection of the front and back of the membrane through the cooperation of tooling and a front and back detection mechanism. By detecting the difference in the height of the protrusion at the corresponding position of the membrane by the first displacement sensor, the front and back state of the membrane is determined, thereby reducing the inspection cost.

[0009] This application provides a gas box head assembly device, which includes a diaphragm detection device, a diaphragm feeding device that outputs a diaphragm to the tooling, a front and back detection mechanism that detects the front and back of the diaphragm, and when the diaphragm passes the detection, the diaphragm detection device outputs the diaphragm to the gas box head assembly table.

[0010] The air box head assembly equipment provided in this application is equipped with a diaphragm detection device. The diaphragm detection device detects the front and back of the diaphragm by means of tooling and a front and back detection mechanism working together. The front and back status of the diaphragm is determined by the difference in the height of the corresponding protrusion at the corresponding position detected by the first displacement sensor, thereby reducing the detection cost. Attached Figure Description

[0011] To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0012] Figure 1 A partial structural schematic diagram of one embodiment of the membrane testing device provided in this application;

[0013] Figure 2 A schematic diagram of one embodiment of the forward and reverse detection mechanism provided in this application;

[0014] Figure 3 A cross-sectional view showing the cooperation between the forward and reverse detection mechanism and the tooling provided in this application;

[0015] Figure 4 for Figure 6 A magnified view of part A in the image;

[0016] Figure 5 A schematic diagram of one embodiment of the tooling provided in this application;

[0017] Figure 6 A schematic diagram of the overall structure of one embodiment of the membrane testing device provided in this application;

[0018] Figure 7 This application provides a structural schematic diagram of one embodiment of the gripping mechanism and the flipping mechanism;

[0019] Figure 8 A schematic diagram of one embodiment of the transfer mechanism provided in this application.

[0020] Figure 9 A structural schematic diagram of the tooling provided in this application from another perspective;

[0021] Figure 10 for Figure 6 A magnified view of part B in the image;

[0022] Figure 11 A partial structural schematic diagram of one embodiment of the second pressing block is provided for this application;

[0023] Figure 12 A cross-sectional view of the membrane tested by the membrane testing equipment provided in this application.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1-Conveying mechanism;

[0026] 11-Tooling;

[0027] 111-Fourth clearance slot;

[0028] 112 - Receiving cavity;

[0029] 113 - Limiting stage;

[0030] 114 - Slide rail;

[0031] 115 - Slider;

[0032] 12-Reference component;

[0033] 2- Front and back testing institutions;

[0034] 21-First driving component;

[0035] 22-First displacement sensor;

[0036] 221 - First push rod;

[0037] 222-First Main Body Section;

[0038] 23-First pressing block;

[0039] 231 - First clearance groove;

[0040] 232 - Second clearance slot;

[0041] 233 - First protrusion;

[0042] 3-Tilting mechanism;

[0043] 31-Rotary drive component;

[0044] 32 - First item to be grabbed;

[0045] 4-Transfer mechanism;

[0046] 41-Driver components;

[0047] 42 - Second grab;

[0048] 5-Grabbing mechanism;

[0049] 51-Mounting plate;

[0050] 52 - Third grab;

[0051] 53-Translation drive component;

[0052] 6-Thickness testing agency;

[0053] 61-Second driving component;

[0054] 62 - Second displacement sensor;

[0055] 621 - Second push rod;

[0056] 622-Second Main Body;

[0057] 63-Second pressing block;

[0058] 631 - Third clearance slot;

[0059] 632 - Second protrusion;

[0060] 7-Piece;

[0061] 71-Protruding structure;

[0062] X - Length direction;

[0063] Y-width direction;

[0064] Z-Height Direction. Detailed Implementation

[0065] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0066] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0067] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0068] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0069] like Figure 1 As shown, this application embodiment provides a diaphragm 7 inspection device. This diaphragm 7 inspection device is used to inspect related materials during the preparation of the expansion valve head, ensuring the materials are in the correct position and reducing the probability of assembly errors. Specifically, the diaphragm 7 inspection device provided in this application embodiment includes a conveying mechanism 1 and a forward and reverse inspection mechanism 2, wherein the material to be inspected is the diaphragm 7. The diaphragm 7 is a component of the expansion valve head. The diaphragm 7 is a thin sheet-like shape, and has a structure where at least a portion of its surface convex to one side. The diaphragm 7 has a protruding structure 71 that protrudes towards the reverse side of the diaphragm 7.

[0070] like Figure 1 As shown, the conveying mechanism 1 is used to carry materials. The conveying mechanism 1 includes at least one tooling 11. The tooling 11 can be a specific clamp adapted to the shape of the material. The tooling 11 is used to carry the material and can also limit the material to a certain extent, keeping the material in a relatively stable state during detection. The tooling 11 provided in this embodiment is used to carry the diaphragm 7, which helps improve the accuracy of detection. Materials can be placed on or removed from the tooling 11 by other mechanisms.

[0071] like Figure 2As shown, the forward and reverse detection mechanism 2 includes a first driving component 21, a first displacement sensor 22, and a first pressing block 23. The first pressing block 23 and the first displacement sensor 22 can synchronously move closer to or further away from the fixture 11 within a certain time period. Here, "synchronous" can be understood as the main parts of the two components having no relative position. Of course, to realize the detection function of the first displacement sensor 22, the detection end of the first displacement sensor 22 has a telescopic function, meaning the detection end of the first displacement sensor 22 can have relative displacement relative to the first pressing block 23. Within a preset time period, the first pressing block 23 and the first displacement sensor 22 can move synchronously, and the movement time of the first pressing block 23 and the first displacement sensor 22 can be manually preset, thereby controlling the distance the first pressing block 23 and the first displacement sensor 22 move. The first pressing block 23 and the first displacement sensor 22 can be interconnected through other connection structures and installed on the first driving component 21, or the first pressing block 23 and the first displacement sensor 22 can be directly connected to the first driving component 21. The first driving component 21 can drive the first pressing block 23 and the first displacement sensor 22 closer to or further away from the fixture 11. The first pressure block 23 applies pressure to the material placed on the fixture 11, fixing the material relatively between the fixture 11 and the first pressure block 23, facilitating detection by the first displacement sensor 22. The first pressure block 23 has a first clearance groove 231 on the side facing the fixture 11. The first clearance groove 231 is designed to fit the protrusion structure 71 on the diaphragm 7. The first clearance groove 231 can be an annular groove. When the first pressure block 23 and the first displacement sensor 22 move closer to the fixture 11, the first pressure block 23 contacts the diaphragm 7 and presses it firmly. At this time, the projection of the first clearance groove 231 in the height direction Z of the diaphragm 7 detection device at least covers the projection of the protrusion structure 71 of the diaphragm 7, thus preventing the protrusion structure 71 of the diaphragm 7 from being damaged by pressure during detection. Simultaneously, the portion of the first pressure block 23 without the first clearance groove 231 can exert a certain pressure on the diaphragm 7, fixing it relatively and facilitating detection. Of course, the projection range of the first clearance groove 231 can be slightly larger than the projection of the diaphragm 7 protrusion structure 71. When the diaphragm 7 or the first pressure block 23 is slightly offset, the first pressure block 23 will not damage the diaphragm 7 protrusion structure 71, thus improving the reliability of the detection equipment.

[0072] like Figure 3 As shown, the tooling 11 has a fourth clearance groove 111 on the side facing the first pressure block 23. The shape of the fourth clearance groove 111 is adapted to the shape of the protrusion structure 71 on the diaphragm 7. The fourth clearance groove 111 is an annular groove and is located along the height direction Z of the diaphragm 7 detection device. The projections of the first clearance groove 231 and the fourth clearance groove 111 overlap. When the first pressure block 23 presses down on the diaphragm 7, the first clearance groove 231 and the fourth clearance groove 111 can play a clearance role at the same time, so that the protrusion structure 71 of the diaphragm 7 will not be squeezed and damaged by the first pressure block 23 or the tooling 11.

[0073] The first displacement sensor 22 is a device that converts displacement into an electrical signal. Its working principle can be based on principles such as resistance change, inductance, or the Hall effect. By converting the displacement of the mechanical parts on the first displacement sensor 22 into a voltage or resistance output that has a functional relationship with the displacement, the measurement of displacement or size can be achieved. Figure 3 As shown, along the height direction Z of the diaphragm inspection device, at least part of the projection of the first displacement sensor 22 is located at the overlapping portion of the projections of the first clearance groove 231 and the fourth clearance groove 111. The protruding structure 71 of the diaphragm 7 is located at the position where the projections of the first clearance groove 231 and the fourth clearance groove 111 overlap. Therefore, the first displacement sensor 22 can abut against the protruding structure 71 of the diaphragm 7 and measure the dimension of the protruding structure 71 in the height direction Z of the diaphragm inspection device, thereby determining whether the diaphragm 7 is in an inverted state in the fixture 11. If the diaphragm 7 is in an inverted state, it will affect subsequent assembly. Therefore, if the diaphragm 7 is inverted, an additional step is required to reverse its direction.

[0074] like Figure 12 As shown, the protruding structure 71 of the diaphragm 7 protrudes relative to one side of the diaphragm 7 but not relative to the other side. Therefore, in the height direction Z of the detection device, when the diaphragm 7 is normally placed, the protruding structure 71 will not protrude relative to the part of the diaphragm 7 without the protruding structure 71. However, when the diaphragm 7 is inverted, the protruding structure 71 will protrude relative to the part of the diaphragm 7 without the protruding structure 71. When the diaphragm 7 is normally placed with its front facing the first displacement sensor 22, the protruding structure 71 protrudes in the direction away from the first displacement sensor 22, and the highest point of the side of the diaphragm 7 closest to the first displacement sensor 22 is flush with the part of the diaphragm 7 without the protruding structure 71. However, when the diaphragm 7 is inverted with its front facing the fixture 11, the protruding structure 71 protrudes in the direction closer to the first displacement sensor 22, and the height of the protruding structure 71 will be higher than the part of the diaphragm 7 without the protruding structure 71.

[0075] During testing, the first displacement sensor 22 moves towards the fixture 11 and comes into contact with the diaphragm 7. The first displacement sensor 22 can detect the height of the protrusion of the diaphragm 7, and determine whether the diaphragm 7 is placed normally or inverted based on the height of the protrusion. Specifically, during testing, the first displacement sensor 22 and the first pressure block 23 can move synchronously. When the diaphragm 7 comes into contact with the first displacement sensor 22, it triggers the first displacement sensor 22 to generate displacement data. The displacement data can be used to determine the height of the diaphragm 7 and further determine its orientation. When the first pressure block 23 descends to its position and presses the diaphragm 7, at least the main body of the first displacement sensor 22 and the first pressure block 23 can stop moving synchronously. The first pressure block 23 and the fixture 11 work together to clamp the diaphragm 7, keeping the diaphragm 7 in a taut state, reducing the possibility of elastic deformation of the diaphragm 7 when the first displacement sensor 22 comes into contact with the diaphragm 7, and improving the accuracy of the test results. When diaphragm 7 is inverted, the protruding structure 71 protrudes relative to other parts of diaphragm 7, allowing the first displacement sensor 22 to contact diaphragm 7 earlier. This results in a larger displacement data point after the first displacement sensor 22 stops moving. Conversely, when diaphragm 7 is in its normal position, the first displacement sensor 22 contacts diaphragm 7 later, generating a smaller displacement data point. The displacement data when diaphragm 7 is in its normal position can be detected and recorded in advance as standard data. By comparing the detected data with the pre-recorded standard data, the displacement data is converted into the height of the diaphragm 7's protrusion, thus determining the orientation of diaphragm 7. When the detected displacement data is greater than the standard data, diaphragm 7 is considered inverted and requires adjustment before assembly can continue. When the detected displacement data equals the standard data, diaphragm 7 is considered normal and assembly can continue. A reasonable error range can be set based on the accuracy of the displacement sensor and the thickness of diaphragm 7. If the error between the detected data and the standard data is within a certain range, it is considered normal, reducing the possibility of errors and improving detection efficiency.

[0076] By adjusting the relative positions of the first displacement sensor 22 and the first pressure block 23 in the height direction Z of the diaphragm detection device, the contact timing between the first displacement sensor 22 and the diaphragm 7 can be adjusted. By adjusting the first displacement sensor 22 to a position closer to the diaphragm 7 than the first pressure block 23, the first displacement sensor 22 can contact the diaphragm 7 earlier than the first pressure block 23, thus obtaining sufficient displacement data. This avoids a situation where the first pressure block 23 has already fully contacted the diaphragm 7 and stopped moving, but the first displacement sensor 22 has not yet contacted the diaphragm 7 and therefore cannot obtain displacement data. Alternatively, the first displacement sensor 22 can be adjusted to a critical state: when the diaphragm 7 is placed normally, the first displacement sensor 22 just contacts the diaphragm 7 but does not trigger the sensor and does not generate displacement data; only when the diaphragm 7 is inverted can the first displacement sensor 22 contact the diaphragm 7 and generate displacement data.

[0077] The diaphragm inspection device provided in this application embodiment can detect the front and back of the diaphragm 7. Compared with the current method of using visual algorithms to detect the front and back of the diaphragm 7, this application embodiment completes the detection by using the first displacement sensor 22 in conjunction with the first pressure block 23 and the tooling 11. It uses mechanical and electronic detection methods to detect the protrusion height of the diaphragm 7, thereby performing front and back detection. The detection accuracy is good and the efficiency is high, and the equipment cost is low, which is conducive to improving the assembly efficiency of the air box head and reducing the processing cost.

[0078] like Figure 2 and Figure 4 As shown, where Figure 4 The diagram shows a partial structural view of the first pressure block 23 near the end of the tooling 11. In one possible implementation, the first pressure block 23 includes a second clearance groove 232, which extends along the height direction Z of the diaphragm detection device. The second clearance groove 232 communicates with the first clearance groove 231, and at least a portion of the first displacement sensor 22 is located in the second clearance groove 232.

[0079] The second clearance groove 232 provides space for the first displacement sensor 22 to be installed. The first pressure block 23 can be cylindrical to facilitate the clamping of the spring. The second clearance groove 232 penetrates the first pressure block 23 along the height Z direction of the diaphragm detection device and is connected to the first clearance groove 231, so that the protruding structure 71 of the diaphragm 7 projected onto the second clearance groove 232 can contact the first displacement sensor 22 for detection. Alternatively, the second clearance groove 232 can be set on the side wall of the first pressure block 23, which facilitates the installation of the first displacement sensor 22.

[0080] like Figure 2 As shown, in one possible implementation, the first displacement sensor 22 includes a first main body 222 and a first push rod 221. At least a portion of the first push rod 221 is located inside the first main body 222. The first push rod 221 is telescopic relative to the first main body 222 and can contact the material. The first push rod 221 and the first main body 222 can be connected by an elastic element. When the first push rod 221 contacts the diaphragm 7, the first push rod 221 can be displaced. When the first push rod 221 separates from the diaphragm 7, the first push rod 221 can be reset under the action of the elastic element. The relative movement between the first push rod 221 and the first main body 222 can achieve a change in resistance through a principle similar to that of a sliding rheostat, thereby converting the displacement of the first push rod 221 into a resistance value and further into an electrical signal for recording and reading. The first displacement sensor 22 has the advantages of strong anti-interference ability, no human error, convenient installation, and high reliability.

[0081] like Figure 5As shown, in one possible implementation, the tooling 11 includes a receiving cavity 112, the bottom wall of the receiving cavity 112 includes a limiting platform 113, a fourth clearance groove 111 is arranged around the limiting platform 113, the limiting platform 113 protrudes towards one side of the first pressing block 23, the limiting platform 113 protrudes towards the first pressing block 23, the first pressing block 23 of the diaphragm detection device includes a first protrusion 233, the first protrusion 233 and the limiting platform 113 can limit and clamp the material, and play a positioning role for the material.

[0082] The receiving cavity 112 is a recessed cavity along the height direction Z of the diaphragm detection device of the tooling 11. The diaphragm 7 can be placed in the receiving cavity 112, and the side wall of the receiving cavity 112 can limit the diaphragm 7. The limiting stage 113 protrudes along the height direction Z of the diaphragm detection device and can support the diaphragm 7. The first pressing block 23 is correspondingly provided with a first protrusion 233. The first protrusion 233 and the limiting stage 113 can cooperate to clamp and fix the diaphragm 7, wherein the part of the material clamped is the part of the diaphragm 7 without the protrusion structure 71. In addition, the parts of the first pressing block 23 located on both sides of the first clearance groove 231 can cooperate with the parts of the tooling 11 located on both sides of the fourth clearance groove 111. When clamping the diaphragm 7, the diaphragm 7 can be kept in a relatively taut state, reducing the possibility that the diaphragm 7 will undergo elastic deformation when the first displacement sensor 22 abuts against the protrusion structure 71 of the diaphragm 7, thus affecting the detection result.

[0083] like Figure 6 As shown, in one possible implementation, the membrane detection device includes a flipping mechanism 3 and a transfer mechanism 4. The flipping mechanism 3 includes a rotary drive 31 and a first gripper 32. The first gripper 32 can move closer to or further away from the fixture 11. The rotary drive 31 can drive the first gripper 32 to rotate, thereby flipping the material.

[0084] like Figure 7 As shown, the flipping mechanism 3 is used to adjust the inverted diaphragm 7 to the correct position. Specifically, when the forward and reverse detection mechanism 2 detects that the diaphragm 7 currently in the fixture 11 is in an inverted state, the first gripper 32 approaches the fixture 11 and takes away the diaphragm 7. The first gripper 32 is driven to rotate in the vertical direction by the rotation drive 31, so that the diaphragm 7 is flipped with the first gripper 32, so that the protrusion structure 71 of the diaphragm 7 faces upward.

[0085] like Figure 8As shown, the transfer mechanism 4 includes a drive assembly 41 and a second gripper 42. The drive assembly 41 can move the second gripper 42 closer to or further away from the first gripper 32. The drive assembly 41 can consist of multiple drive components, each capable of displacement in different directions, thus improving the flexibility of the second gripper 42's movement. After the flipping mechanism 3 flips the diaphragm 7 back to the correct position, the transfer mechanism 4 can remove the diaphragm 7 from the first gripper 32 via the second gripper 42 and place the diaphragm 7 onto other processing equipment for subsequent assembly.

[0086] like Figure 7 As shown, in one possible implementation, the membrane inspection device includes a gripping mechanism 5, which includes a translational drive 53 and a mounting plate 51 connected to each other. The mounting plate 51 is provided with at least one third gripper 52, which can approach or move away from the tooling 11. A rotational drive 31 is mounted on the mounting plate 51.

[0087] The gripping mechanism 5 moves the diaphragm 7 to be inspected to the fixture 11. The translation drive 53 drives the mounting plate 51 to move. The mounting plate 51 can be equipped with multiple third grippers 52. The conveying mechanism 1 can be equipped with multiple fixtures 11. The gripping mechanism 5 can simultaneously place multiple diaphragms 7 into the fixture 11 or remove multiple diaphragms 7 from different fixtures 11 at once. The diaphragm inspection equipment can be equipped with multiple forward and reverse inspection mechanisms 2 to simultaneously inspect multiple diaphragms 7 located in different fixtures 11, thereby improving inspection efficiency. When the inspection result shows that all diaphragms 7 are in a normal posture and not inverted, the gripping mechanism 5 can remove multiple diaphragms 7 simultaneously. If some diaphragms 7 are inverted, the flipping mechanism 3 removes the inverted diaphragms 7 first, and then the gripping mechanism 5 removes the other normally placed diaphragms 7.

[0088] like Figure 9 As shown, the conveying mechanism 1 has a sliding rail 114 and a slider 115 that cooperate with each other, and the tooling 11 is installed on the slider 115.

[0089] The fixture 11 can slide and adjust its position with the slider 115. The diaphragm 7 placed on the fixture 11 can move with the fixture 11. By adjusting its position, it is easier for the forward and reverse detection mechanism 2 to perform more accurate detection on the diaphragm 7. Alternatively, after the detection is completed, the position of the fixture 11 can be moved so that other mechanisms and equipment can remove the diaphragm 7 from the fixture 11 or place the diaphragm 7 on the fixture 11.

[0090] like Figure 10 and Figure 11 As shown, Figure 11This is a partial structural diagram of the second pressure block 63 near the end of the fixture 11. In one possible embodiment, the diaphragm detection device includes a thickness detection mechanism 6. The thickness detection mechanism 6 includes a second driving member 61, a second pressure block 63, and a second displacement sensor 62. The second pressure block 63 and the second displacement sensor 62 are connected. The second driving member 61 can drive the second pressure block 63 and the second displacement sensor 62 to move synchronously closer to or further away from the fixture 11. The second pressure block 63 can cooperate with the fixture 11 to achieve the function of limiting the diaphragm 7. The second pressure block 63 and the second displacement sensor 62 can move synchronously. The side of the second pressure block 63 facing the fixture 11 has a third clearance groove 631, which is used to avoid the protrusion structure 71 of the diaphragm 7. The second pressure block 63 and the first pressure block 23 can achieve similar functions.

[0091] The conveying mechanism 1 has a reference member 12, and the second displacement sensor 62 can abut against the reference member 12. Along the height direction Z of the diaphragm detection device, the projection of the third clearance groove 631 at least partially covers the projection of the fourth clearance groove 111. When the second pressure block 63 cooperates with the tooling 11 to press the diaphragm 7, the third clearance groove 631 and the fourth clearance groove 111 are located on both sides of the diaphragm 7 along the height direction Z of the diaphragm detection device, and the protruding structure 71 of the diaphragm 7 is located within the projection range of the third clearance groove 631 and the fourth clearance groove 111, thereby preventing the diaphragm 7 from being squeezed and damaged.

[0092] The height of the reference component 12 along the height direction Z of the diaphragm detection device can be slightly higher than the height of the tooling 11. Before the second pressure block 63 contacts the diaphragm 7, the reference component 12 can trigger the second displacement sensor 62. When the second pressure block 63 stops moving, the second pressure block 63 will also stop moving. The thickness of the diaphragm 7 can be calculated by the displacement recorded by the second displacement sensor 62. When multiple diaphragms 7 overlap, the overall thickness of the multiple diaphragms 7 is relatively large. The second pressure block 63 will move a relatively small distance to contact the diaphragm 7 and stop moving. The second displacement sensor 62 will also stop moving earlier than when there is no overlap. Therefore, when multiple diaphragms 7 overlap, the displacement recorded by the second displacement sensor 62 is less than the displacement generated by a single diaphragm 7. The displacement can be used to determine whether overlap has occurred. When overlap is detected, the overlapping diaphragms 7 can be separated manually or by other mechanisms to prevent the overlapping diaphragms 7 from affecting the normal assembly of the air box head. The diaphragm 7 can be moved by the transfer mechanism 4, so that the diaphragm 7 can be moved from the fixture 11 that cooperates with the forward and reverse detection mechanism 2 to the fixture 11 that cooperates with the thickness detection mechanism 6, so as to complete different detections respectively.

[0093] like Figure 10As shown, in one possible implementation, the second displacement sensor 62 includes a second main body 622 and a second push rod 621. At least a portion of the second push rod 621 is located inside the second main body 622. The second push rod 621 is telescopic relative to the second main body 622 and can abut against the reference member 12. The second displacement sensor 62 and the first displacement sensor 22 have similar structures and functions. When the second push rod 621 abuts against the reference member 12, the second push rod 621 can undergo relative displacement with the second main body 622 and further convert the displacement into an electrical signal. The amount of displacement can be used to determine whether the diaphragm 7 has overlapped.

[0094] like Figure 11 As shown, in one possible implementation, the tooling 11 includes a receiving cavity 112. The bottom wall of the receiving cavity 112 includes a limiting platform 113. A fourth clearance groove 111 is arranged around the limiting platform 113. The limiting platform 113 protrudes towards the side of the second pressing block 63. The second pressing block 63 includes a second protrusion 632. The second protrusion 632 is located on the side of the second pressing block 63 close to the tooling 11. The second protrusion 632 and the limiting platform 113 can limit and clamp the material. The second protrusion 632 is used to cooperate with the limiting platform 113 to clamp the part of the diaphragm 7 that does not have a protrusion structure 71, thereby improving the stability of the diaphragm 7 inside the receiving cavity 112 and thus improving the accuracy of detection.

[0095] This application provides a gas chamber head assembly device for assembling gas chamber heads. The device includes a diaphragm inspection device, a gas chamber head assembly table, and a diaphragm feeding device. The diaphragm inspection device is the same as described in any of the above embodiments. The diaphragm feeding device outputs the diaphragm to tooling 11, and a front / back inspection mechanism 2 detects the front and back of the diaphragm. Once the diaphragm passes inspection, the diaphragm inspection device outputs the diaphragm to the gas chamber head assembly table. The diaphragm inspection device is used to inspect the diaphragm, reducing inspection costs, decreasing the possibility of assembly errors, and improving the yield rate of production.

[0096] The above description, based on the embodiments shown in the drawings, details the structure, features, and effects of this application. The above description is only a preferred embodiment of this application, but this application does not limit the scope of implementation to what is shown in the drawings. Any changes made in accordance with the concept of this application, or modifications to equivalent embodiments, that do not exceed the spirit covered by the specification and drawings, should be within the protection scope of this application.

Claims

1. A membrane inspection device, suitable for membranes having at least a portion of their surface convex to one side, characterized in that, The membrane testing equipment includes: A conveying mechanism, wherein the conveying mechanism has at least one tooling for placing materials; The forward and reverse detection mechanism includes a first driving component, a first displacement sensor, and a first pressing block. Within a preset time period, the first pressing block and the first displacement sensor can move synchronously. The first driving component can drive the first pressing block and the first displacement sensor to move closer to or away from the tooling. The side of the first pressing block facing the tooling has a first clearance groove. At least a portion of the first displacement sensor is located in the first clearance groove, and the first displacement sensor can come into contact with the material. The tooling has a fourth clearance groove on the side facing the first pressure block. Along the height direction of the diaphragm detection device, the projection of the first clearance groove and the projection of the fourth clearance groove overlap, and at least part of the projection of the first displacement sensor is located in the overlapping part.

2. The membrane testing device according to claim 1, characterized in that, The first pressure block includes a second clearance groove that extends along the height direction of the diaphragm detection device and communicates with the first clearance groove. At least a portion of the first displacement sensor is located in the second clearance groove.

3. The membrane testing device according to claim 2, characterized in that, The first displacement sensor includes a first main body and a first push rod, at least a portion of which is located inside the first main body. The first push rod is telescopic relative to the first main body and is capable of contacting the material.

4. The membrane testing device according to any one of claims 1, characterized in that, The tooling includes a receiving cavity, the bottom wall of which includes a limiting platform. The fourth clearance groove is arranged around the limiting platform. The limiting platform protrudes towards the first pressing block. The first pressing block includes a first protrusion located on the side of the first pressing block closer to the tooling. The first protrusion and the limiting platform can limit and clamp the material.

5. The membrane testing device according to claim 1, characterized in that, The membrane inspection device includes a flipping mechanism and a transfer mechanism. The flipping mechanism includes a rotary drive and a first gripper. The first gripper can move closer to or further away from the tooling. The rotary drive can drive the first gripper to rotate, causing the material to flip. The transfer mechanism includes a drive assembly and a second gripper. The drive assembly can drive the second gripper to move closer to or further away from the first gripper.

6. The membrane testing device according to claim 5, characterized in that, The membrane inspection device includes a gripping mechanism, which includes a translational drive and a mounting plate connected to each other. The mounting plate is provided with at least one third gripper, which can move closer to or further away from the fixture. The rotational drive is mounted on the mounting plate. The conveying mechanism has a sliding rail and a slider that cooperate with each other, and the fixture is mounted on the slider.

7. The membrane testing device according to any one of claims 1-6, characterized in that, The diaphragm inspection device includes a thickness inspection mechanism, which includes a second driving member, a second pressure block, and a second displacement sensor. The second pressure block and the second displacement sensor are connected. The second driving member can move the second pressure block and the second displacement sensor closer to or away from the fixture. The second pressure block has a third clearance groove on the side facing the fixture. The conveying mechanism has a reference member. The second displacement sensor can abut against the reference member. Along the height direction of the diaphragm inspection device, the projection of the third clearance groove at least partially covers the projection of the fourth clearance groove.

8. The membrane testing device according to claim 7, characterized in that, The second displacement sensor includes a second main body and a second push rod, at least a portion of which is located inside the second main body. The second push rod is telescopic relative to the second main body and can abut against the reference member.

9. The membrane testing device according to claim 7, characterized in that, The tooling includes a receiving cavity, the bottom wall of which includes a limiting platform. The fourth clearance groove is arranged around the limiting platform. The limiting platform protrudes towards the second pressing block. The second pressing block includes a second protrusion located on the side of the second pressing block closer to the tooling. The second protrusion and the limiting platform can limit and clamp the material.

10. A gas box head assembly device, characterized in that, The air box head assembly equipment includes a diaphragm inspection device, an air box head assembly table, and a diaphragm feeding device. The diaphragm inspection device is the same as any one of claims 1 to 9. The diaphragm feeding device outputs the diaphragm to the tooling. The forward and reverse inspection mechanism detects the forward and reverse orientation of the diaphragm. When the diaphragm passes the inspection, the diaphragm inspection device outputs the diaphragm to the air box head assembly table.

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