Belleville spring assembly assembling tool and method

Abstract

The invention discloses an assembly tool and an assembly method for a belleville spring assembly. The assembly tool for the belleville spring assembly is provided with a base, a telescopic boss, a telescopic boss driving device, a positioning stud and a locking nut. The telescopic boss driving device adopts a pneumatic mode and is connected with an external high-pressure air source; the base is a square pedestal, a cavity with an opening in the upper end is formed in the middle of the base and is of a stepped cylindrical hole structure, the diameter of a cavity body of the cavity is smaller than that of the bottom of the cavity, a telescopic boss is assembled in the cavity in a vertically movable mode, and a sealing ring is assembled between the inner wall of the cavity and the telescopic boss. The bottom of the cavity is communicated with the telescopic boss driving device through a gas pipeline; the telescopic boss is of a cylinder structure, and the upper end face of the telescopic boss is a horizontal plane. The positioning studs are fixed to the four corners of the base, and the locking nuts are assembled on the positioning studs. The assembling quality of the belleville spring assembly is guaranteed, and the purposes of meeting the using performance requirement of the belleville spring and improving the working efficiency are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical parts assembly, in particular to a disc spring component assembly tool and an assembly method. Background Art

[0002] Disc springs work by providing sufficient elasticity through the superposition of a certain number of disc-shaped springs. Due to its variable stiffness characteristics and compact installation, it is used in the fields of mechanical equipment industry, petroleum industry, automobile industry, and aerospace industry, and has replaced cylindrical spiral springs to a certain extent. Figure 1 , Figure 2 A disc spring assembly 1 is shown, which includes a spring base 1-3, a disc spring 1-2 and an upper cover plate 1-1, wherein a cylindrical boss protruding upward is arranged at the center of the spring base 1-3; the disc spring 1-2 is sleeved on the outside of the cylindrical boss of the spring base 1-3; the upper cover plate 1-1 is placed above the disc spring 1-2, and the upper cover plate 1-1 and the spring base 1-3 are connected by screws 1-4 assembled along the central axis; assembly holes 1-5 for cooperating with other parts are arranged at corresponding positions of the four corners of the spring base 1-3 and the upper cover plate 1-1.

[0003] In the attached Figure 1 , Figure 2 During the assembly of the disc spring assembly 1 shown, the following factors need to be considered: first, a certain installation distance is reserved between the upper cover plate and the 1-1 spring base 1-3; second, the disc spring 1-2 meets the installation preload requirements; third, the coaxiality of the installation of each group of disc springs 1-2 is ensured; fourth, the installation work efficiency is improved; and fifth, the manual installation measurement error is reduced. For this purpose, it is necessary to innovatively design a special assembly tool and assembly method for the disc spring assembly 1 to ensure the assembly quality of the disc spring assembly. Summary of the invention

[0004] The present invention provides a disc spring assembly assembly tool and an assembly method, which aims to ensure the assembly quality of the disc spring assembly through the cooperation of a base, a telescopic boss, a telescopic boss driving device, a positioning bolt assembly and a locking nut, so as to meet the performance requirements of the disc spring and improve the work efficiency.

[0005] In order to achieve the above object, the present invention adopts the following technical scheme: A disc spring assembly assembly tool is provided with a base, a telescopic boss, a telescopic boss drive device, a positioning stud and a locking nut; the telescopic boss drive device adopts a pneumatic mode and is connected to an external high-pressure gas source; the base is a square pedestal, and a cavity with an open upper end is provided in the middle of the base, and the cavity is a stepped cylindrical hole structure, and its cavity diameter is smaller than the bottom diameter. The telescopic boss is mounted in the cavity in an upward and downward movable manner, and a sealing ring is mounted between the inner wall of the cavity and the telescopic boss, and the bottom of the cavity is connected to the telescopic boss drive device through a gas pipeline; the telescopic boss is a cylindrical structure, and its upper end surface is a horizontal plane; the positioning studs are fixed at the four corners of the base, and locking nuts are mounted on the positioning studs.

[0006] The disc spring assembly assembly tool is provided with a scale on the base, and a scale probe which can move up and down is mounted on the scale.

[0007] The above-mentioned disc spring assembly assembly tool is provided with a level ruler on the upper end surface of the base, and the level ruler is provided in two groups, one group is arranged parallel to the horizontal and longitudinal edges of the base.

[0008] The above-mentioned disc spring assembly assembly tool is provided with a pressure gauge, a pressure regulating knob, a boost switch and a pressure relief switch on the control panel of the telescopic boss drive device.

[0009] In the above-mentioned disc spring assembly assembly tool, the bottom of the telescopic boss is an inverted conical table surface.

[0010] In the above-mentioned disc spring assembly assembly tool, the locking nut is a butterfly nut.

[0011] A disc spring assembly method, using the disc spring assembly tool to complete the disc spring assembly operation, the operation steps are: a. According to the installation distance between the upper cover plate of the disc spring assembly and the spring base and the numerical requirements of the disc spring installation preload force, the thrust provided by the telescopic boss during the assembly of the disc spring assembly is calculated, and then the pressure value P of the high-pressure gas required to be provided by the telescopic boss drive device is calculated; b. Adjust the levelness of the base so that the two level rulers on the base are in a horizontal state; c. Install the spring base, the disc spring and the upper cover of the disc spring assembly onto the base of the disc spring assembly assembly tool in sequence, and lock the upper cover and the disc spring by means of the locking nut and the positioning stud; d. Press the boost switch of the telescopic boss drive device to fill the cavity of the base with high-pressure gas through the gas pipeline. Under the action of the high-pressure gas pressure, the telescopic boss installed in the cavity is lifted upward, pushing the shrapnel base to move upward, thereby achieving the compression of the disc-shaped shrapnel; e. Read the indicated value P1 of the pressure gauge at this time, and compare it with the pressure value P calculated in step a, and then adjust the pressure regulating knob to make P1 and P the same; f. Use a ruler probe to measure the installation distance H between the upper cover plate of the disc spring assembly and the spring base. After determining that the H value meets the assembly requirements, tighten the screws of the disc spring assembly; g. Adjust the pressure regulating knob to reduce the gas pressure and press the pressure relief switch. After the telescopic boss returns to its initial position, remove the locking nut and take out the disc spring assembly to complete the assembly process.

[0012] In the above-mentioned disc spring assembly method, in step c, four groups of positioning studs on the disc spring assembly assembly tool base respectively pass through the corresponding assembly holes of the spring base and the upper cover plate.

[0013] In the above-mentioned disc spring assembly method, in step f, if the H value meets the requirements, the screws of the disc spring assembly are tightened; if the H value does not meet the requirements, the gas supply pressure is adjusted by adjusting the pressure regulating knob until the installation distance H between the upper cover plate and the spring base meets the requirements, and then the screws of the disc spring assembly are tightened.

[0014] The present invention provides a disc spring assembly assembly tool and an assembly method. When assembling the disc spring assembly, high-pressure gas can be provided through a pneumatic telescopic boss driving device. Under the action of the high-pressure gas pressure, the telescopic boss moves upward, pushing the spring base to compress the disc spring elastic deformation, thereby adjusting the installation distance between the spring base and the upper cover plate, and ensuring the preload force of the disc spring. The present invention can detect the horizontality of the base through a level ruler set on the base, thereby achieving the vertical movement of the telescopic boss under the guidance of the cavity of the base cavity, and through the cooperation of the positioning stud and the locking nut, the coaxiality of the installation of each group of disc springs is ensured. The present invention uses the conversion relationship between the air supply pressure and the preload force of the disc spring and the installation distance between the spring base and the upper cover, adjusts the air supply pressure through the pressure adjustment knob of the telescopic boss driving device, and reads the specific value through the pressure gauge, which is more convenient for operators to accurately control the preload force of the disc spring, thereby improving work efficiency. In conclusion, the present invention ensures the assembly quality of the disc spring assembly, thereby achieving the purpose of satisfying the performance requirements of the disc spring and improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic structural diagram of a disc spring assembly involved in the present invention; Figure 2 yes Figure 1 A schematic cross-sectional structure diagram of ; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 yes Figure 3 Attached view of Figure 5 yes Figure 4 Schematic diagram of the AA section structure; Figure 6 It is a schematic diagram of the working state of the present invention; Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure.

[0016] Explanation of the symbols in the figure: 1 is a disc spring assembly 1-1 is the upper cover, 1-2 is the disc-shaped spring, 1-3 is the spring base, 1-4 is the screw, and 1-5 is the assembly hole; 2 is the disc spring assembly tool 2-1 is a base, 2-1-1 is a cavity, 2-2 is a scale, 2-3 is a scale probe, 2-4 is a locking nut, 2-5 is a positioning stud, 2-6 is a telescopic boss, 2-6-1 is a conical table, 2-7 is a level ruler, 2-8 is a gas pipeline, 2-9 is a telescopic boss driving device, 2-9-1 is a pressure gauge, 2-9-2 is a pressure regulating knob, 2-9-3 is a boost switch, 2-9-4 is a pressure relief switch, and 2-10 is a sealing ring. DETAILED DESCRIPTION

[0017] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0018] See Figure 1. Figure 2 A disc spring assembly 1 comprises a spring base 1-3, a disc spring 1-2 and an upper cover 1-1, wherein a cylindrical boss protruding upward is arranged at the center of the spring base 1-3; the disc spring 1-2 is sleeved on the outside of the cylindrical boss of the spring base 1-3; the upper cover 1-1 is placed above the disc spring 1-2, and the upper cover 1-1 and the spring base 1-3 are connected by screws 1-4 assembled along the central axis; assembly holes 1-5 for cooperating with other parts are arranged at corresponding positions of the four corners of the spring base 1-3 and the upper cover 1-1.

[0019] See also Figure 3 , Figure 4 , Figure 5The present invention provides a disc spring assembly assembly tool, which is provided with a base 2-1, a telescopic boss 2-6, a telescopic boss driving device 2-9, a positioning stud 2-5 and a locking nut 2-4; the telescopic boss driving device 2-9 adopts a pneumatic mode and is connected to an external high-pressure air source, and a pressure gauge 2-9-1, a pressure regulating knob 2-9-2, a boost switch 2-9-3 and a pressure relief switch 2-9-4 are provided on the control panel of the telescopic boss driving device 2-9; the base 2-1 is a square pedestal, and a cavity 2-1-1 with an open upper end is provided in the middle of the base 2-1, and the cavity 2-1 -1 is a stepped cylindrical hole structure, the cavity diameter of which is smaller than the bottom diameter, a telescopic boss 2-6 is mounted in the cavity in a movable manner, and a sealing ring 2-10 is mounted between the inner wall of the cavity and the telescopic boss 2-6, and the bottom of the cavity is connected to the telescopic boss driving device 2-9 through a gas pipeline 2-8; the telescopic boss 2-6 is a cylindrical structure, the upper end face of which is a horizontal plane, and the bottom is an inverted conical surface 2-6-1; the positioning studs 2-5 are fixed at the four corners of the base 2-1, and locking nuts 2-4 are mounted on the positioning studs 2-5; the locking nuts 2-4 are butterfly nuts.

[0020] See also Figure 3 , Figure 4 The disc spring assembly assembly tool described in the present invention has a scale 2-2 on its base 2-1, and a scale probe 2-3 that can move up and down is installed on the scale 2-2; a level ruler 2-7 is set on the upper end surface of the base 2-1, and the level ruler 2-7 is in two groups, one group is arranged parallel to the horizontal and longitudinal edges of the base 2-1.

[0021] See also Figure 6 , Figure 7 The present invention also provides a disc spring assembly assembly method, which uses the disc spring assembly assembly tool to complete the disc spring assembly assembly operation, and the operation steps are: a. According to the installation distance between the upper cover plate 1-1 of the disc spring assembly 1 and the spring base 1-3 and the numerical requirements of the installation preload force of the disc spring 1-2, the thrust provided by the telescopic boss 2-6 when the disc spring assembly 1 is assembled is calculated, and then the pressure value P of the high-pressure gas provided by the telescopic boss drive device 2-9 is calculated; b. Adjust the levelness of the base 2-1 so that the two level rulers 2-7 on the base 2-1 are in a horizontal state; c. Install the spring base 1-3, the spring disc 1-2 and the upper cover 1-1 of the disc spring assembly 1 on the base 2-1 of the disc spring assembly assembly tool 2 in sequence, so that the four sets of positioning studs 2-5 on the base 2-1 of the disc spring assembly assembly tool 2 pass through the corresponding assembly holes 1-5 of the spring base 1-3 and the upper cover 1-1 respectively, and lock the upper cover 1-1 and the disc spring 1-2 by the cooperation of the locking nut 2-4 and the positioning studs 2-5; d. Press the boost switch 2-9-3 of the telescopic boss driving device 2-9, and fill the cavity 2-1-1 of the base 2-1 with high-pressure gas through the gas pipeline 2-8. Under the action of the high-pressure gas pressure, the telescopic boss 2-6 installed in the cavity 2-1-1 is lifted upward, pushing the shrapnel base 1-3 to move upward, thereby compressing the disc-shaped shrapnel 1-2; e. Read the indicated value P1 of the pressure gauge 2-9-1 at this time, and compare it with the pressure value P calculated in step a, and then adjust the pressure regulating knob 2-9-2 to make P1 and P the same; f. Use the ruler probe 2-3 to measure the installation distance H between the upper cover plate 1-1 and the spring base 1-3 of the disc spring assembly 1. If the H value meets the requirement, tighten the screws 1-4 of the disc spring assembly 1. If the H value does not meet the requirement, adjust the gas supply pressure by adjusting the pressure regulating knob 2-9-2 until the installation distance H between the upper cover plate 1-1 and the spring base 1-3 meets the requirement, and then tighten the screws 1-4 of the disc spring assembly 1. g. Adjust the pressure regulating knob 2-9-2 to reduce the gas pressure, and press the pressure relief switch 2-9-4. After the telescopic boss 2-6 returns to its initial position, remove the locking nut 2-4 and take out the disc spring assembly 1 to complete the assembly process.

Claims

1. A disc spring assembly assembly tool, characterized in that: The disc spring assembly assembly tool (2) is provided with a base (2-1), a telescopic boss (2-6), a telescopic boss drive device (2-9), a positioning stud (2-5) and a locking nut (2-4); the telescopic boss drive device (2-9) adopts a pneumatic mode and is connected to an external high-pressure gas source; the base (2-1) is a square pedestal, and a cavity (2-1-1) with an open upper end is provided in the middle of the base (2-1); the cavity (2-1-1) is a stepped cylindrical hole structure, and its cavity diameter is less than The bottom diameter of the cavity is 20 mm, a telescopic boss (2-6) is mounted in the cavity in an upward and downward movable manner, a sealing ring (2-10) is mounted between the inner wall of the cavity and the telescopic boss (2-6), and the bottom of the cavity is connected to the telescopic boss driving device (2-9) through a gas pipeline (2-8); the telescopic boss (2-6) is a cylindrical structure, and its upper end surface is a horizontal plane; the positioning studs (2-5) are fixed at the four corners of the base (2-1), and locking nuts (2-4) are mounted on the positioning studs (2-5).

2. The disc spring assembly assembly tool according to claim 1, characterized in that: A scale (2-2) is arranged on the base (2-1), and a scale probe (2-3) that can move up and down is mounted on the scale (2-2).

3. The disc spring assembly assembly tool according to claim 2, characterized in that: A level ruler (2-7) is arranged on the upper end surface of the base (2-1), and the level rulers (2-7) are provided in two groups, one group being arranged parallel to the horizontal and longitudinal side lines of the base (2-1).

4. The disc spring assembly assembly tool according to claim 1, 2 or 3, characterized in that: A pressure gauge (2-9-1), a pressure regulating knob (2-9-2), a boost switch (2-9-3) and a pressure relief switch (2-9-4) are provided on the control panel of the telescopic boss drive device (2-9).

5. The disc spring assembly assembly tool according to claim 4, characterized in that: The bottom of the telescopic boss (2-6) is an inverted conical cone surface (2-6-1).

6. The disc spring assembly assembly tool according to claim 5, characterized in that: The locking nut (2-4) is a butterfly nut.

7. A disc spring assembly method, characterized in that: The disc spring assembly 1 is assembled using the disc spring assembly assembly tool 2 according to any one of claims 1 to 6, and the operation steps are as follows: a. According to the installation distance between the upper cover plate (1-1) of the disc spring assembly (1) and the spring plate base (1-3) and the numerical requirements for the installation preload force of the disc spring (1-2), the thrust provided by the telescopic boss (2-6) when the disc spring assembly (1) is assembled is calculated, and then the pressure value P of the high-pressure gas required to be provided by the telescopic boss drive device (2-9) is calculated; b. Adjust the levelness of the base (2-1) so that the two level rulers (2-7) on the base (2-1) are in a horizontal state; c. Installing the spring base (1-3), the spring disc (1-2), and the upper cover (1-1) of the disc spring assembly (1) onto the base (2-1) of the disc spring assembly assembly tool (2) in sequence, and locking the upper cover (1-1) and the disc spring (1-2) by means of the locking nut (2-4) and the positioning stud (2-5); d. Pressing the boost switch (2-9-3) of the telescopic boss driving device (2-9) to inject high-pressure gas into the cavity (2-1-1) of the base (2-1) through the gas pipeline (2-8), and under the action of the high-pressure gas pressure, the telescopic boss (2-6) mounted in the cavity (2-1-1) is lifted upward, pushing the shrapnel base (1-3) to move upward, thereby achieving compression of the disc-shaped shrapnel (1-2); e. Read the indicated value P1 of the pressure gauge (2-9-1) at this time, and compare it with the pressure value P calculated in step a, and then adjust the pressure regulating knob (2-9-2) to make P1 and P the same; f. Use the ruler probe (2-3) to measure the installation distance H between the upper cover plate (1-1) of the disc spring assembly (1) and the spring base (1-3). After determining that the H value meets the assembly requirements, tighten the screws (1-4) of the disc spring assembly (1); g. Adjust the pressure regulating knob (2-9-2) to reduce the gas pressure and press the pressure relief switch (2-9-4). After the telescopic boss (2-6) returns to its initial position, remove the locking nut (2-4) and take out the disc spring assembly (1) to complete the assembly process.

8. The disc spring assembly assembly method according to claim 7, characterized in that: In the step c, four groups of positioning studs (2-5) on the base (2-1) of the disc spring assembly assembly tool (2) respectively pass through corresponding assembly holes (1-5) of the spring plate base (1-3) and the upper cover plate (1-1).

9. The disc spring assembly assembly method according to claim 7, characterized in that: In step f, if the H value meets the requirement, the screws (1-4) of the disc spring assembly (1) are tightened; if the H value does not meet the requirement, the gas supply pressure is adjusted by adjusting the pressure regulating knob (2-9-2) until the installation distance H between the upper cover plate (1-1) and the spring base (1-3) meets the requirement, and then the screws (1-4) of the disc spring assembly (1) are tightened.

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