A method of assembling a disc spring assembly

Abstract

The application discloses a disc spring assembly assembling method, comprising the following steps: obtaining the convex surface direction of a disc spring piece, judging whether the disc spring piece is a preset disc spring piece according to the convex surface direction, if yes, further judging whether the preset disc spring piece meets the height requirement, if the preset disc spring piece meets the height requirement, completing the assembly of the preset disc spring piece and proceeding to the next step of assembly, realizing the automatic assembly of the disc spring assembly, automatically assembling various disc springs in the disc spring assembly in sequence, assembling according to the assembly sequence of different disc springs in the disc spring assembly, improving the efficiency of detecting and identifying the disc spring piece in the actual assembly process of the disc spring assembly, separating the detection and assembly positioning of the disc spring piece, avoiding the operation backtracking caused by the error of the disc spring piece found during the assembly of the disc spring piece, and facilitating the rapid assembly.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of disc spring assembly, in particular to a disc spring assembly assembly method. BACKGROUND

[0002] At present, the artificial assembly method is adopted, and the procedures are as follows: assembly-test-pressing-marking. Each procedure is realized by manual operation. The disc spring assembly contains 20 sub-pieces, and the finished product has strict requirements on height and force value. The finished product assembly needs to go through 4 procedures, each of which needs to be realized by manual operation, and each procedure needs to be configured with 1 person or more. According to the total of 4 persons, about 900 sets of products can be assembled per shift, and the labor cost is high. The number of sub-pieces is large, the same product has front and back assembly, and the manual assembly of different products is prone to misassembly, missing assembly, and overassembly, etc., which leads to unqualified products. In the prior art, only the pressing device of the disc spring assembly is improved, and there is little improvement on the assembly method.

[0003] For example, a "pressing system for disc spring assembly and its use method" disclosed in Chinese patent document, its publication number: CN115781245A, discloses a C-shaped frame, the C-shaped frame is provided with an assembly positioning device, the disc spring product to be pressed is placed in the assembly positioning device, an assembly pressing head and an oil pressure control system are sequentially arranged above the assembly positioning device, the assembly pressing head is pressed by the oil pressure control system, the assembly pressing head is provided with a positioning piece and a locking piece, the disc spring product is positioned by the positioning piece, and the disc spring product is locked by the locking piece, but this scheme cannot automatically assemble multiple disc springs in the disc spring assembly. SUMMARY

[0004] In order to solve the problem that the disc spring assembly cannot be automatically assembled in the prior art, the present application provides a disc spring assembly assembly method, which can automatically assemble according to the height and automatically assemble different disc springs and gaskets in the disc spring assembly.

[0005] In order to achieve the above-mentioned purpose, the present application provides the following technical scheme:

[0006] The application discloses a disc spring assembly assembling method, comprising the following steps: obtaining the convex surface direction of a disc spring piece, judging whether the disc spring piece is a preset disc spring piece according to the convex surface direction, judging whether the preset disc spring piece meets the height requirement if yes, and completing the preset disc spring piece assembling and the next step assembling if the preset disc spring piece meets the height requirement. The application first judges whether the disc spring piece is a preset disc spring piece, and the convex surface direction of the disc spring piece is different in each step assembling. Therefore, the application judges whether the disc spring piece is a preset disc spring piece according to the convex surface direction, judges the installation height of the disc spring piece after judging that the disc spring piece is a preset disc spring piece, and completes the assembling if the installation height meets the requirement. Thus, the automatic assembling of the disc spring assembly is realized, the disc spring assembly can be assembled automatically, and the disc spring assembly can be assembled according to the assembling sequence of different disc springs.

[0007] Preferably, when judging whether the disc spring piece is a preset disc spring piece according to the convex surface direction, the preset convex surface direction of the current disc spring assembly is obtained, and the disc spring piece is judged as a preset disc spring piece if the convex surface direction of the disc spring piece is the same as the preset convex surface direction. The preset convex surface direction of the current disc spring assembly is obtained by determining the preset convex surface direction of the current assembling step according to the process step of the disc spring assembly assembling, and judging the disc spring piece according to the preset convex surface direction of the current assembling step. Thus, the disc spring piece can be quickly judged as a preset disc spring piece required by the current assembling step. The disc spring piece is judged by the preset convex surface direction, so that the disc spring piece does not need to be judged in other ways. Meanwhile, the judging method can judge the position error of the same disc spring piece or the type error of different disc spring pieces, and improves the efficiency of detecting and identifying the disc spring piece in the actual disc spring assembly assembling process.

[0008] Preferably, the convex surface position corresponding to the preset convex surface direction is obtained, the preset range of the convex surface position is obtained, and the height of the preset disc spring piece at the corresponding convex surface position is judged to be in the preset range. The preset convex surface direction is different, and the corresponding convex surface position is different. That is, when the preset convex surface is upward, the convex surface position is at the center of the convex surface, and when the preset convex surface is downward, the convex surface position is at the periphery of the convex surface. Thus, the convex surface position corresponding to the convex surface direction is judged, the height of the preset disc spring piece is judged according to the convex surface position corresponding to the convex surface direction after the convex surface direction is determined, and the height of the feature point of the preset disc spring piece is obtained. The height of the preset disc spring piece is judged according to the height of the feature point, the height detection of the preset disc spring piece is realized, the height detection of the feature point after the assembling is realized, or the height detection of the feature point position of the disc spring piece before the assembling is realized, and the automatic and rapid detection is realized.

[0009] As preferred, the completion of the preset disc spring assembly includes obtaining the disc spring positioning, judging whether it is the assembly position according to the disc spring positioning, completing the assembly if it is the assembly position, and canceling the assembly if the disc spring positioning changes. After the judgment of the preset disc spring is completed, the preset disc spring is positioned relative to the disc spring assembly, and the preset disc spring is assembled into the disc spring assembly according to the positioning. The detection and assembly positioning of the disc spring can be separated, and the operation rollback caused by the detection of the disc spring error during the assembly of the disc spring can be avoided. The assembly can be quickly completed.

[0010] As preferred, the judgment of whether the preset disc spring meets the height requirement includes obtaining the height of the assembled disc spring, adding the height of the assembled disc spring to the height of the preset disc spring, and judging whether the preset disc spring meets the height requirement according to the addition result. The height detection of the preset disc spring is realized by the superimposed detection of the height of the preset disc spring and the height of the installed disc spring. The superimposed detection can be realized by the unified height detection after the installation of the preset disc spring into the disc spring assembly, or the height detection of the installed disc spring and the height detection of the preset disc spring can be realized respectively. Through the above-mentioned manner, whether the preset disc spring itself meets the requirement or whether the installation of the preset disc spring is in place can be judged, so that whether the preset disc spring of this assembly step meets the height requirement can be judged.

[0011] As preferred, the judgment of whether the preset disc spring meets the height requirement further includes judging the position of the addition result of the height of the assembled disc spring and the height of the preset disc spring, and judging the addition result of the height if the position of the addition result of the height is the same as the convex position corresponding to the direction of the preset convex surface. Through the addition of the height of the installed disc spring and the height of the preset disc spring, the addition position is judged, so that whether the installation of the preset disc spring meets the requirement can be judged, and whether the disc spring required in this assembly step and the preset disc spring assembled in this assembly step are the same can be judged. That is, whether the disc spring assembly is correct or not can be judged again at this step, and the installation effect of the preset disc spring can be judged by judging the height of the corresponding convex position, so that the height of each position after the installation of the preset disc spring can be monitored.

[0012] As preferred, the height requirement includes setting the height of the preset disc spring as the height requirement threshold, setting the disc spring assembly that does not meet the height requirement as an out-of-tolerance piece, and rejecting the out-of-tolerance piece for the assembly of the next disc spring assembly. The height requirement is determined according to the height value of the disc spring itself, so that the size precision of the preset disc spring can be detected through the height requirement, and the assembly effect of the preset disc spring can be detected, so that the disc spring assembly that does not meet the requirement after the assembly can be screened.

[0013] As preferred, if the disc spring convex surface direction cannot be acquired, the gasket height is acquired, and whether the gasket height meets the requirement is judged according to the height of the assembled disc spring piece, if not, the gasket height is re-acquired until it meets the requirement. At this time, the disc spring convex surface direction is not acquired, the step of acquiring the disc spring convex surface direction is skipped, and the gasket height is acquired instead, and the gasket height is judged after the gasket height is acquired, wherein the height judgment is to judge the height of the gasket itself to judge whether the gasket meets the requirement, and the gasket height is determined according to the height of the assembled disc spring, and the final requirement is the height of the assembled gasket. The height of the gasket can be determined according to the assembled disc spring piece, so that the appropriate gasket can be automatically assembled.

[0014] As preferred, the test mode is acquired after the next assembly is completed, and the disc spring assembly after the assembly is completed is tested according to the test mode; and the test result is acquired, and the disc spring assembly with qualified test result is subjected to press fitting and laser marking. After the assembly of each disc spring piece or gasket is completed, different test modes are adopted for testing, and different test results are obtained according to different test modes to determine the qualified disc spring assembly. Therefore, the automatic assembly of the disc spring piece can be realized.

[0015] The present application has the following advantages:

[0016] (1) The automatic assembly of the disc spring assembly is realized, the various disc springs in the disc spring assembly can be automatically assembled in sequence, and the assembly can be performed following the assembly sequence of the different disc springs in the disc spring assembly; (2) The efficiency of detecting and identifying the disc spring piece in the actual assembly process of the disc spring assembly is improved; (3) The detection and assembly positioning of the disc spring piece can be separated, so that the operation is not reversed due to the error of the disc spring piece found during the assembly of the disc spring piece. The assembly can be quickly performed; (4) Whether the preset disc spring piece itself meets the requirement can be judged, and whether the installation of the preset disc spring piece is in place can be judged, so that whether the preset disc spring piece of this step meets the height requirement can be judged; (5) The installation effect of the preset disc spring piece can be judged, and the height of each position after the installation of the preset disc spring piece can be monitored. BRIEF DESCRIPTION OF DRAWINGS

[0017] The drawings in the following description are only exemplary, and other implementation drawings can be obtained according to the provided drawings without creative labor for those skilled in the art.

[0018] Fig. 1 is a step schematic diagram of a disc spring assembly assembly method of the present application.

[0019] Fig. 2 is a flow schematic diagram of a disc spring assembly assembly method of the present application.

[0020] Fig. 3 is an implementation schematic diagram of an embodiment.

[0021] 1, feeding mechanism; 2, assembly part; 3, detection part; 4, discharging part. DETAILED DESCRIPTION

[0022] The embodiments of the present application are illustrated by way of specific examples, and all other embodiments obtained by those skilled in the art based on the embodiments of the present application without creative labor are within the scope of protection of the present application.

[0023] As shown in the drawings, in a preferred embodiment, the present application discloses a disc spring assembly method, comprising the following steps: obtaining the convex surface direction of the disc spring piece, judging whether it is a preset disc spring piece according to the convex surface direction, if yes, further judging whether the preset disc spring piece meets the height requirement; if the preset disc spring piece meets the height requirement, completing the assembly of the preset disc spring piece and proceeding to the next assembly step. First, it is judged whether it is a preset disc spring piece. In each assembly step, the disc spring pieces may be the same or different, but the convex surface directions are different. Therefore, it is judged whether it is a preset disc spring piece according to the convex surface direction. After judging that it is a preset disc spring piece, it is further judged whether the installation height of the disc spring piece meets the requirement. If the installation height also meets the requirement, the assembly is completed. Figs. 1-3 In use, the convex surface direction of the disc spring piece is detected by a sensor or directly input, and the convex surface direction of the disc spring piece is judged, the judgment of the disc spring piece of the current process is completed, it is judged whether it is a correct disc spring piece of the process, if yes, the assembly is completed, and this step is repeated to realize automatic assembly.

[0024] When judging whether it is a preset disc spring piece according to the convex surface direction, the preset convex surface direction of the current disc spring assembly is obtained. If the convex surface direction of the disc spring piece is the same as the preset convex surface direction, it is judged that the disc spring piece is a preset disc spring piece. Obtaining the preset convex surface direction of the current disc spring assembly includes determining the preset convex surface direction of the current assembly process according to the process steps of the disc spring assembly, and judging the disc spring piece according to the preset convex surface direction of the current assembly process, so as to realize the quick judgment of whether the disc spring piece is a preset disc spring piece required by the current assembly process. The judgment of the disc spring piece is realized through the judgment of the preset convex surface direction, so that other judgments of the disc spring piece are not required. Meanwhile, this kind of judgment method can judge the position error of the same kind of disc spring piece or the type error of different kinds of disc spring pieces.

[0025] In use, the disc spring piece required to be installed at present is determined according to the current process, the convex surface direction of the disc spring piece required to be installed at present is judged, the convex surface direction is taken as a preset convex surface direction, and it is judged whether it is a disc spring piece of this process according to the preset convex surface direction.

[0026]

[0027] ​Further comprising obtaining a convex surface position corresponding to a preset convex surface direction, and obtaining a preset range of the convex surface position, judging whether the height of the preset disc spring piece at the corresponding convex surface position is located in the preset range. Wherein, the direction of the preset convex surface is different, corresponding to different convex surface positions, that is, when the preset convex surface is upward, the convex surface position is located at the center of the convex surface at this time, and when the preset convex surface is downward, the convex surface position is located at the periphery of the convex surface; So that the convex surface position corresponding to the convex surface direction can be judged, the convex surface direction is determined, and then the height judgment is carried out according to the convex surface position corresponding to the convex surface direction, so as to obtain the height of the feature point of the preset disc spring piece. The height detection is carried out through the height of the feature point of the preset disc spring piece, which can be the height detection of the feature point after assembly, or the self height detection of the disc spring piece feature point position before assembly.

[0028] In use, the assembled disc spring piece is detected according to the height and position, so as to complete the detection of each disc spring piece before or after assembly.

[0029] The assembly of the preset disc spring piece includes obtaining disc spring piece positioning, judging whether it is an assembly position according to the disc spring piece positioning, completing the assembly if it is an assembly position, and canceling this assembly if the disc spring piece positioning changes. After the judgment of the preset disc spring piece is completed, the positioning of the preset disc spring piece relative to the disc spring assembly is carried out, and the preset disc spring piece is assembled into the disc spring assembly according to the positioning.

[0030] In use, before assembly, the disc spring piece and the disc spring assembly are positioned after the disc spring piece is judged to be correct. Usually, a positioning rod is used to position and assemble from top to bottom, and assembly is carried out after positioning is correct.

[0031] Judging whether the preset disc spring piece meets the height requirement includes obtaining the height of the assembled disc spring piece, adding it to the preset disc spring height, and judging whether the preset disc spring meets the height requirement according to the addition result. The height detection of the preset disc spring piece is realized by superimposed detection of the height of the preset disc spring piece and the installed disc spring piece, wherein the superimposed detection can be realized by unified height detection after the preset disc spring piece is installed into the disc spring assembly, or the height of the installed disc spring piece and the height of the preset disc spring piece can be detected respectively to realize the superimposed detection.

[0032] In use, after the disc spring piece positioning is successful and the assembly is successful, the height detection is carried out again to detect the assembly result, so as to judge whether the process meets the requirement.

[0033] The judgment of whether the preset disc spring meets the height requirement also includes adding the height of the assembled disc spring and the height of the preset disc spring, judging the position of the added height, and judging the added height if the position of the added height is the same as the convex position corresponding to the preset convex direction. The position of the added height is judged, and the height of the corresponding convex position is judged.

[0034] In use, the assembled disc spring assembly is detected by a sensor or other detection tool to detect the height and position of the top; when the disc spring is offset, skewed, etc., the height of the top will change, thereby detecting the assembly result and improving the automation efficiency.

[0035] The height requirement includes setting the height of the preset disc spring as the height requirement threshold, setting the disc spring assembly that does not meet the height requirement as an out-of-tolerance piece, and removing the out-of-tolerance piece for assembly of the next disc spring assembly. The height requirement is determined according to the height of the disc spring itself, so that the height requirement can detect the size accuracy of the preset disc spring on one hand, and facilitate detection of the assembly effect of the preset disc spring on the other hand.

[0036] If the disc spring convex direction cannot be obtained, the gasket height is obtained, the height of the assembled disc spring is judged to determine whether the gasket height meets the requirement, and if not, the gasket height is re-obtained until it meets the requirement. At this time, the disc spring convex direction is not obtained, and after skipping the step of obtaining the disc spring convex direction, the gasket height is obtained. After obtaining the gasket height, the height of the gasket is judged, which is to judge whether the gasket meets the requirement according to the height of the assembled disc spring, and the final requirement is the height of the assembled gasket.

[0037] After completing the next assembly, a test method is obtained, and the assembled disc spring assembly is tested according to the test method; the test result is obtained, and the disc spring assembly with a qualified test result is subjected to press fitting and laser marking. After completing the assembly of each disc spring or gasket, different test methods are used for testing, and different test results are obtained according to different test methods to determine the qualified disc spring assembly.

[0038] In a second embodiment, the present application discloses a disc spring assembly assembling device which can realize the disc spring assembly assembling method disclosed by the present application, comprising the following mechanisms. It comprises a feeding mechanism 1 which feeds the shell to the conveying belt; a plurality of assembling parts 2 are connected behind the feeding mechanism 1, the assembling part 2 comprises a first disc spring assembling part which assembles the first disc spring into the shell; a second disc spring assembling part is arranged behind the first disc spring assembling part, the second disc spring assembling part assembles the second disc spring into the shell; a third disc spring assembling part is arranged behind the second disc spring assembling part, the third disc spring assembling part assembles the third disc spring into the shell; a fourth disc spring assembling part is arranged behind the third disc spring assembling part, the fourth disc spring assembling part assembles the fourth disc spring into the shell.

[0039] Each assembling part is provided with a height detection device, the height detection device comprises a clamping mechanism which is a mechanical hand or a movable clamp; a trigger switch is arranged at the end of the clamping mechanism, the clamping thickness of the clamping mechanism is fixed, the trigger switch abuts against the disc spring leaf, when the thickness of the disc spring leaf is the same as the clamping thickness of the clamping mechanism, the disc spring leaf abuts against the trigger switch, the trigger switch is connected with a processor, the processor is connected with the assembling part, the trigger switch sends a signal to the processor after being triggered, the processor judges that the disc spring leaf meets the standard after receiving the signal of the trigger switch, the processor sends a qualified signal to the assembling part according to the signal of the trigger switch, and the assembling part performs assembly after receiving the qualified signal.

[0040] In another embodiment, the clamping mechanism is connected with a light detection module, the light detection module detects the thickness and direction of the disc spring leaf through a light emitter and a light sensor arranged between the clamping mechanism and the assembling part.

[0041] In another embodiment, the assembling part, the height detection device comprises two conveying belts which are perpendicular to each other and have different heights, a cavity is arranged in the upper conveying belt, a clamping mechanism is fixedly arranged in the cavity, a trigger switch is arranged at the top of the cavity, the trigger switch abuts against the disc spring leaf in the clamping mechanism, the clamping mechanism comprises symmetrical telescopic members, the telescopic members are clamped with the disc spring leaf, the telescopic members clamp the disc spring leaf in the cavity, the telescopic members shrink into the side wall of the cavity after being electrified, and the trigger switch controls the telescopic members to be electrified. The trigger switch electrifies the telescopic members after the disc spring leaf which meets the requirements abuts against the trigger switch, and the telescopic members shrink after being electrified, so that the disc spring leaf is clamped and falls out of the cavity. The shell is arranged on the lower conveying belt. The shell and the cavity are located on the same vertical plane, the disc spring leaf falls from the cavity and falls into the shell to complete the assembly.

[0042] In another embodiment, the clamping mechanism is connected with a push rod, after the push rod pushes the disc spring into the clamping mechanism, the disc spring is prevented from falling out of the cavity by the clamping of the telescopic member, when the disc spring meets the height requirement, it abuts against the trigger switch at the top of the cavity, the trigger switch sends an electric current signal to the telescopic member to make the telescopic member contract, and then the disc spring in the cavity continues to fall into the lower shell, thereby completing the assembly.

[0043] In another embodiment, a light sensor is arranged horizontally inside the cavity, the light sensor includes an emitting part and a sensing part, the sensing part is connected with the telescopic member, and the sensing part controls the telescopic member to contract when it loses light reception. The emitting part is a constant light emitter.

[0044] Further, the sensing part is provided with a judgment circuit, one end of the judgment circuit is a light signal, the other end of the judgment circuit is a telescopic signal, and the judgment logic is to send the telescopic signal when the light signal is 0.

[0045] In another embodiment, the light sensors are arranged in an array at the top of the cavity, the light sensors detect the size and position of the disc spring in the cavity, and the light sensors are connected with a processor and send the detection information to the processor. The processor determines whether the disc spring meets the standard according to the detection results of the light sensors.

[0046] In another embodiment, the mechanical hand is a symmetrical U-shaped telescopic hand, the two ends of the U-shaped telescopic hand are close to and away from each other to realize clamping and releasing of the disc spring. The inner side of the U-shaped telescopic hand corresponds to the two end faces and is provided with an array of light sensors, which can detect the convex surface direction, height and size of the clamped disc spring through the light sensors at different positions. The light sensors are connected with a processor, the processor performs distance measurement according to the signal conversion of the light sensors, and determines the actual size of the disc spring through the distance measurement and the preset size of the U-shaped telescopic hand. The processor determines whether the disc spring meets the standard according to the convex surface direction, height and size of the disc spring respectively, and sends a release signal to control the U-shaped telescopic hand to release the disc spring if it is determined that the disc spring meets the standard.

[0047] The detection can be performed before each disc spring is put in, to determine whether the disc spring meets the standard, so that unqualified disc springs are avoided from being put in. At the same time, the disc spring is positioned so as not to be placed askew, thereby avoiding the cumbersome steps caused by detecting the disc spring as unqualified after it is put in and then taking it out.

[0048] Meanwhile, the processor counts the disc springs that are successfully placed, acquires preset disc spring information according to the count, judges the received detection information according to the preset disc spring information, and simultaneously determines whether the disc spring meets the standard and whether it is a required disc spring. When multiple disc springs of different types are sequentially received, different disc springs can be selected according to the preset installation requirements to assemble the current shell.

[0049] This allows different disc springs to be installed at different workstations on the conveyor belt assembly line.

[0050] In another embodiment, an inspection unit 3 is provided after the assembly unit 2, and a feeding unit 4 is provided after the inspection unit 3. After one inspection, qualified products are fed out.

[0051] In practice, the process begins with loading the components. This includes installing the first round-hole disc spring, the second round-hole disc spring, the seven-hole disc spring, the eight-hole disc spring, the adjusting shim, the push rod limiting shim, and the disc spring limiting shim into their respective mounting mechanisms. Then, the housing is sequentially conveyed to the mounting mechanism of each component. After loading, assembly begins. The three second round-hole disc springs at the bottom of the housing are installed sequentially, with their convex surfaces facing the bottom of the housing. During installation, the convex-facing second round-hole disc springs are placed into the housing one by one and counted. Once the count reaches 3, the placement of the convex-facing second round-hole disc springs stops. After each second round-hole disc spring is placed, the height inside the housing is checked. If the height is within tolerance, another spring is placed. After placing three convex-facing second round-hole disc springs, three more convex-facing second round-hole disc springs are placed using the same method. After placing three convex-facing second round-hole disc springs, the height is checked again, and housings with excessive height are rejected. Next, the first circular hole disc springs are assembled, including a combination of two sets of first circular hole disc springs and disc spring limiting shims. In this assembly, firstly, one first circular hole disc spring is placed inside the housing and abuts against the upper end face of the second circular hole disc spring, with the convex side of the first circular hole disc spring facing downwards. Then, a disc spring limiting shim is placed on the concave side of the first circular hole disc spring. Above the disc spring limiting shim, a first circular hole disc spring with its convex side facing upwards is placed, so that there is a first circular hole disc spring symmetrical about the disc spring limiting shim on both the upper and lower sides. When the two combinations of the above-mentioned first circular hole disc springs and disc spring limiting shims are placed vertically in sequence, a height check is performed after each first circular hole disc spring is placed, and housings with excessive height are rejected.

[0052] After the installation of the first and second circular hole disc springs is completed without the shell being removed, the installation of the eight-hole disc springs and the seven-hole disc springs is performed on the shell, the eight-hole disc springs including three placed in sequence, the bottommost eight-hole disc spring having a convex surface facing downward and abutting against a top surface of the topmost first circular hole disc spring, the second eight-hole disc spring having a convex surface facing upward, height detection being performed, and the shell with an out-of-tolerance height being removed; then the last of the three eight-hole disc springs is installed, the convex surface of the last eight-hole disc spring facing downward and being symmetrical to the bottommost eight-hole disc spring about the middle eight-hole disc spring; after the installation of the eight-hole disc springs is completed, two symmetrically arranged seven-hole disc springs are installed above the eight-hole disc springs in sequence, one of the seven-hole disc springs being placed in the shell with a convex surface facing upward, the seven-hole disc spring with the convex surface facing upward abutting against the topmost eight-hole disc spring; then the second seven-hole disc spring is installed with a convex surface facing downward, and after the installation of the two seven-hole disc springs is completed, height detection is performed, and the shell with an out-of-tolerance height is removed.

[0053] After the installation of all the disc springs is completed, a leveling gasket is installed, the leveling gasket being installed above the topmost seven-hole disc spring. After the installation of the leveling gasket is completed, height detection is performed, and the shell with an out-of-tolerance height is removed. After the installation of the leveling gasket is completed, a piston push rod is placed in the shell with the bottom of the piston push rod abutting against the top of the leveling gasket; after the installation of the piston push rod is completed, a push rod limiting gasket is installed on the top of the shell, the push rod limiting gasket being positioned and installed and fixed with the edge of the shell.

[0054] In the third embodiment, after the installation is completed, testing and press fitting are further included. In the testing process, performance detection is performed on the shell with the installation being completed, performance detection results are obtained, the disc spring assembly with a qualified height after the testing is press fitted, press fitting results are obtained, and the disc spring assembly with qualified press fitting results is laser marked.

[0055] Although the present application has been described in detail with general description and specific embodiments above, some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, these modifications or improvements made on the basis of not deviating from the spirit of the present application are within the scope of the present application claimed.

Claims

1. A method for assembling a disc spring assembly, characterized in that, Includes the following steps: Obtain the convex direction of the disc spring, and determine whether it is a preset disc spring based on the convex direction. If it is, further determine whether the preset disc spring meets the height requirements. When the preset convex surface is facing upward, the convex surface position is located at the center of the convex surface. When the preset convex surface is facing downward, the convex surface position is located around the convex surface. Determine the convex direction by judging the convex surface position corresponding to the convex surface direction, and judge the height based on the convex surface position corresponding to the convex surface direction. Determining whether the preset disc spring meets the height requirement includes: obtaining the height of the assembled disc spring, adding it to the preset disc spring height, and determining whether the preset disc spring meets the height requirement based on the addition result; after adding the height of the assembled disc spring and the preset disc spring height, determining the position of the height addition result; if the position of the height addition result is the same as the convex position corresponding to the preset convex surface direction, then the height addition result is judged. If the preset disc spring meets the height requirements, the preset disc spring assembly will be completed and the next assembly step will be performed. If the convex direction of the disc spring cannot be obtained, the shim height will be obtained. The shim height will be determined based on the height of the assembled disc spring. If not, the shim height will be obtained again until it meets the requirements.

2. The method for assembling a disc spring assembly according to claim 1, characterized in that, When determining whether a disc spring is a preset disc spring based on the convex direction, the preset convex direction of the current disc spring assembly is obtained. If the convex direction of the disc spring is the same as the preset convex direction, then the current disc spring is determined to be a preset disc spring. Obtaining the preset convex surface direction of the current disc spring assembly includes: determining the preset convex surface direction of the current assembly process according to the assembly process steps of the disc spring assembly, and judging the disc spring sheet according to the preset convex surface direction of the current assembly process.

3. The method for assembling a disc spring assembly according to claim 2, characterized in that, It also includes obtaining the convex position corresponding to the preset convex direction, obtaining the preset range of the convex position, and determining whether the height of the preset disc spring at the corresponding convex position is within the preset range.

4. A disc spring assembly method according to claim 1, 2, or 3, characterized in that, The preset disc spring assembly includes obtaining the disc spring position, determining whether it is the assembly position based on the disc spring position, completing the assembly if it is the assembly position, and canceling the assembly if the disc spring position changes.

5. The disc spring assembly method according to claim 3, characterized in that, The height requirement includes setting the height of the disc spring itself as the height requirement threshold, designating disc spring assemblies that do not meet the height requirement as out-of-tolerance parts, and removing out-of-tolerance parts for the assembly of the next disc spring assembly.

6. A method for assembling a disc spring assembly according to any one of claims 1 to 5, characterized in that, After completing the next assembly step, obtain the test method and test the assembled disc spring assembly according to the test method; Obtain the test results, and press-fit and laser-mark the disc spring assemblies that pass the test.

7. The method for assembling a disc spring assembly according to claim 1, characterized in that, The method uses an array of light sensors arranged on the inner side of the U-shaped telescopic hand to detect the convex direction, height, and size of the disc spring.

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