Automobile pressure sensor grounding ring crimping tool

Abstract

The utility model relates to a crimping tool for a grounding ring of an automobile pressure sensor. A press machine is arranged on the crimping tool for the grounding ring of the automobile pressure sensor; a pressing cylinder is fixed on the press machine; placing a to-be-mounted grounding ring, a trigger and a metal shell in the mold; one side of the mold is connected with a pressure pump structure; when the press machine drives the downward pressing air cylinder to press the grounding ring and the trigger which are placed in the mold and to be installed into the metal shell, the pressure pump structure conducts vacuum extraction to fix the grounding ring and the trigger. The grounding ring and the trigger are adsorbed in the upper die through vacuum, so that the technical problems that in the prior art, in the grounding ring crimping process, the grounding ring and the trigger often fall off, the grounding ring and the trigger are directly crushed, and products are scrapped are solved.

Description

Technical Field

[0001] The embodiment of the utility model relates to the automobile industry, and in particular to a grounding ring crimping tool for an automobile pressure sensor. Background Art

[0002] In the automotive pressure sensor, the grounding ring contacts the sensor housing and plays a grounding role. The grounding ring fixes the trigger. When pressure enters the automotive pressure sensor, if the pressure is too high, the trigger will be pushed upward and the connection inside the sensor will be disconnected. Therefore, the stable installation of the grounding ring plays a very important role in the automotive pressure sensor. In the prior art, during the crimping process of the grounding ring, the mold and the grounding ring and the trigger are positioned according to the set tolerance. However, the grounding ring and the trigger are on the upper mold. Due to the size of the grounding ring and the trigger, the mold and the grounding ring and the trigger cannot meet the tolerance positioning accuracy set by the mold and the grounding ring and the trigger. The grounding ring and the trigger often fall off, resulting in the grounding ring and the trigger being directly crushed, causing the product to be scrapped. Utility Model Content

[0003] The purpose of the embodiment of the utility model is to provide a grounding ring crimping tool for an automobile pressure sensor in which a grounding ring and a trigger will not fall off a mold, comprising:

[0004] A press machine, which is arranged on the automobile pressure sensor grounding ring crimping tool;

[0005] A downward pressure cylinder, the downward pressure cylinder is fixed on the press;

[0006] A mold, in which the grounding ring, the trigger and the metal housing to be installed are placed;

[0007] A pressure pump structure is connected to one side of the mold; when the press machine drives the downward pressure cylinder to press the grounding ring and the trigger to be installed in the mold into the metal shell, the pressure pump structure draws vacuum to fix the grounding ring and the trigger.

[0008] Furthermore, in the automotive pressure sensor grounding ring crimping tool in the utility model, the mold further includes:

[0009] A lower mold, the lower mold is fixed on the working table of the press;

[0010] An upper mold is fixed below the piston rod of the downward pressure cylinder.

[0011] Furthermore, in the automobile pressure sensor grounding ring crimping tool of the utility model, the metal shell is placed on the lower mold; and the grounding ring and the trigger are placed on the upper mold.

[0012] Further, in the automobile pressure sensor grounding ring crimping tool in the utility model, the pressure pump structure includes:

[0013] A pressure pump is connected to the pressure pump via an air pipe on one side of the upper mold;

[0014] An exhaust port is provided on one side of the pressure pump;

[0015] A pressure switch is connected to the pressure pump.

[0016] Furthermore, in the automobile pressure sensor grounding ring crimping tool of the utility model, the grounding ring and the trigger are adsorbed by vacuum in the upper mold.

[0017] Furthermore, in the automotive pressure sensor grounding ring crimping tool of the utility model, the metal shell is placed in the lower mold; the lower mold positions the metal shell along the path where the grounding ring and the trigger are pressed into the metal shell.

[0018] Furthermore, in the automobile pressure sensor grounding ring crimping tool in the utility model, the downward pressure cylinder is a servo-driven cylinder.

[0019] Furthermore, in the automobile pressure sensor grounding ring crimping tool of the utility model, the pressure pump is a vacuum generator.

[0020] Compared with the prior art, the implementation method of the utility model adopts a method of arranging a press machine on a crimping tool for a grounding ring of a vehicle pressure sensor; fixing a downward pressure cylinder on the press machine; placing a grounding ring, a trigger and a metal shell to be installed in a mold; connecting a pressure pump structure on one side of the mold; and when the press machine drives the downward pressure cylinder to press the grounding ring and the trigger to be installed placed in the mold into the metal shell, the pressure pump structure draws a vacuum to fix the grounding ring and the trigger. The grounding ring and the trigger are adsorbed by vacuum in the upper mold, so the structure is simple and the operator is easy to use; the vacuum design can assist in positioning to ensure that the operator will not make mistakes in pressing and installation, thereby improving production efficiency; the key components have a long service life and are relatively easy to maintain in the later stage; compared with traditional automated equipment, the production cost is low and it is suitable for small batch production. This solves the problem that in the prior art, during the crimping process of the grounding ring, the mold and the grounding ring and the trigger are positioned according to the set tolerance, but the grounding ring and the trigger are on the upper mold, and due to the manufacturing deviation of the size of the grounding ring and the trigger, the accuracy of the positioning within the set tolerance cannot be achieved, and the grounding ring and the trigger often fall off, resulting in the grounding ring and the trigger being directly crushed, causing the product to be scrapped. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional diagram of the utility model;

[0022] Figure 2 It is a side view of the upper mold and the lower mold of the utility model;

[0023] Figure 3 It is a connection diagram of the upper mold of the utility model. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the utility model clearer, the various embodiments of the utility model will be described in detail below with reference to the accompanying drawings. However, it can be understood by those skilled in the art that in the various embodiments of the utility model, many technical details are provided in order to enable readers to better understand the present application. However, even without these technical details and various changes and modifications based on the following embodiments, the technical schemes claimed for protection in the claims of the present application can be implemented.

[0025] The first embodiment of the utility model relates to a grounding ring crimping tool for an automobile pressure sensor, such as Figure 1 , Figure 2 , Figure 3 As shown, including:

[0026] A press machine 1 is provided on the grounding ring crimping tooling of the automobile pressure sensor. The function of the press machine 1 is to apply appropriate pressure during the grounding ring crimping process to make the downward pressure cylinder 6 work downward, and press the grounding ring 9 and the trigger 10 into the metal shell 11 at the same time to complete the press-fitting, so that they form a stable electrical connection and ensure the reliability of grounding;

[0027] A downward pressure cylinder 6 is fixed on the press machine 1. The function of the downward pressure cylinder 6 is to apply downward pressure through compressed air to press the grounding ring 9 and the trigger 10 into the metal shell 11 at the same time to ensure the stability and reliability of grounding.

[0028] Place the grounding ring 9, trigger 10 and metal shell 11 to be installed in the mold 20;

[0029] The pressure pump structure 7 is connected to one side of the mold 20; when the press machine 1 drives the downward pressure cylinder 6 to press the grounding ring 9 and the trigger 10 placed in the mold 20 to be installed into the metal shell 11, the pressure pump structure 7 extracts vacuum to fix the grounding ring 9 and the trigger 10. In this embodiment, the grounding ring 9 and the trigger 10 are adsorbed by vacuum, which has a simple structure and is convenient for the operator to use; the vacuum design can assist in positioning, ensuring that the operator will not make mistakes in pressing and installing, thereby improving production efficiency; the key components have a long service life and are relatively easy to maintain in the later stage; compared with traditional automation equipment, the production cost is low and it is suitable for small batch production. The advantages solve the problem that in the prior art, during the grounding ring crimping process, the mold and the grounding ring and the trigger are positioned according to the set tolerance, but the grounding ring and the trigger are on the upper mold. Due to the deviation in the size manufacturing of the grounding ring and the trigger, the accuracy of the tolerance matching positioning of the mold and the grounding ring and the trigger cannot be achieved, and the grounding ring and the trigger often fall off, resulting in the grounding ring and the trigger being directly crushed, causing the technical problem of product scrapping.

[0030] In order to achieve the above technical effects, in the automotive pressure sensor grounding ring crimping tool of this embodiment, as shown in FIG. Figure 1 , Figure 2 , Figure 3 As shown, the mold 20 also includes:

[0031] The lower mold 3 is fixed on the work table 12 of the press machine 1; the function of the lower mold 3 is to locate and limit the position of the metal shell 11 to ensure that there will be no deviation or misalignment during the crimping process, while ensuring the quality and accuracy of the crimping. The design of the lower mold matches the shape and size of the metal shell 11, and the precise position of the metal shell 11 in the lower mold 3 is ensured by the set tolerance and positioning accuracy, which can avoid deformation or damage during the crimping process.

[0032] The upper mold 2 is fixed below the piston rod of the downward pressing cylinder 6. The upper mold 2 plays the role of positioning and limiting the grounding ring 9 and the trigger 10 by vacuum adsorbing the grounding ring 9 and the trigger 10, and can accurately position the grounding ring 9 and the trigger 10 directly below the downward pressing cylinder 6. The lower mold 3 cooperates to crimp the grounding ring 9 and the trigger 10, and ensures that there will be no deviation or misalignment during the crimping process, which can ensure the crimping quality and accuracy, thereby ensuring the stability and reliability of the grounding;

[0033] In order to achieve the above technical effects, in the automotive pressure sensor grounding ring crimping tool of this embodiment, as shown in FIG. Figure 1 , Figure 2 , Figure 3 As shown, a metal shell 11 is placed on the lower mold 3; and a grounding ring 9 and a trigger 10 are placed on the upper mold 2.

[0034] In this embodiment, a press machine 1 is arranged on a crimping tool for a grounding ring of an automobile pressure sensor; a downward pressure cylinder 6 is fixed on the press machine 1; a lower mold 3 is fixed on the press machine 1; an upper mold 2 is fixed below the downward pressure cylinder 6; a pressure pump structure 7 is connected to one side of the upper mold 2. When the operation starts, the grounding ring 9 and the trigger 10 are placed in the upper mold 2, the pressure pump 4 will draw the air into vacuum, the pressure switch 5 will control the signal output of the pressure pump 4, the grounding ring 9 and the trigger 10 can be adsorbed in the upper mold 2 by vacuum, the metal shell 11 is fixed in the lower mold 3, the downward pressure cylinder 6 works downward, and the grounding ring 9 and the trigger 10 are pressed into the metal shell 11 at the same time to complete the press-fitting.

[0035] In order to achieve the above technical effects, in the automotive pressure sensor grounding ring crimping tool of this embodiment, as shown in FIG. Figure 1 , Figure 2 , Figure 3 As shown, the pressure pump structure 7 comprises:

[0036] A pressure pump 4 is connected to one side of the upper mold 2 through an air pipe. The pressure pump 4 will extract the gas in the upper mold 2, reduce the gas pressure, and make it reach a vacuum state. The pressure pump 4 will draw the gas into the pump chamber, and use the rotation in the pump chamber and the switch of the exhaust port 8 to control the flow of the gas. When the pressure pump 4 rotates, the gas in the pump chamber will be compressed and then discharged from the pump chamber. This process is repeated until the gas pressure in the pump chamber drops to the required vacuum value. When the pressure in the system is higher or lower than the rated safety pressure, the elastic element in the pressure switch will find displacement, push the switch element, and change the on-off state of the switch element to achieve the purpose of controlling the measured pressure.

[0037] An exhaust port 8 is provided on one side of the pressure pump 4. The function of the exhaust port 8 is to discharge the gas in the pump chamber of the pressure pump 4 until the gas pressure in the pump chamber drops to the required vacuum value.

[0038] A pressure switch 5 is connected to the pressure pump 4. The function of the pressure switch 5 is to control the flow of gas so that the pressure pump 4 can draw a vacuum at a fixed and stable pressure, and the grounding ring 9 and the trigger 10 are adsorbed in the upper mold 2, thereby ensuring that the tooling can be used normally.

[0039] In order to achieve the above technical effects, in the automotive pressure sensor grounding ring crimping tool of this embodiment, as shown in FIG. Figure 1 , Figure 2 , Figure 3 As shown, the grounding ring 9 and the trigger 10 are adsorbed by vacuum in the upper mold 2 .

[0040] In order to achieve the above technical effects, in the automotive pressure sensor grounding ring crimping tool of this embodiment, as shown in FIG. Figure 1 , Figure 2 , Figure 3 As shown, a metal shell 11 is placed in the lower mold 3; the lower mold 3 positions the metal shell 11 along the path where the grounding ring 9 and the trigger 10 are pressed into the metal shell 11. The metal shell 11 in the lower mold 3 relies on the set tolerance matching positioning accuracy to ensure the accurate position of the metal shell 11 in the lower mold 3, and also ensures that the metal shell 11 is accurately positioned on the path where the grounding ring 9 and the trigger 10 are pressed into the metal shell 11.

[0041] In order to achieve the above technical effects, in the automotive pressure sensor grounding ring crimping tool of this embodiment, as shown in FIG. Figure 1 , Figure 2 , Figure 3 As shown, the pressing cylinder 6 is a servo-driven cylinder. This ensures that the downward force during the pressing process of the pressing cylinder 6 is controlled, and the downward force of the pressing cylinder 6 can also be changed simultaneously.

[0042] In order to achieve the above technical effects, in the automotive pressure sensor grounding ring crimping tool of this embodiment, as shown in FIG. Figure 1 , Figure 2 , Figure 3 As shown, the pressure pump 4 is a vacuum generator. In this way, the pressure pump 4 can continuously output vacuum.

[0043] Those skilled in the art will appreciate that the above-mentioned embodiments are specific examples for implementing the present invention, and in actual applications, various changes may be made thereto in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A grounding ring crimping tool for an automobile pressure sensor, characterized in that: include: A press machine, which is arranged on the automobile pressure sensor grounding ring crimping tool; A downward pressure cylinder, the downward pressure cylinder is fixed on the press; A mold, in which the grounding ring, the trigger and the metal housing to be installed are placed; A pressure pump structure connected to one side of the mold; When the press machine drives the pressing cylinder to press the grounding ring and the trigger placed in the mold to be installed into the metal shell, the pressure pump structure draws vacuum to fix the grounding ring and the trigger.

2. The automotive pressure sensor grounding ring crimping tool according to claim 1, characterized in that: The mold further comprises: A lower mold, the lower mold is fixed on the working table of the press; An upper mold is fixed below the piston rod of the downward pressure cylinder.

3. The automotive pressure sensor grounding ring crimping tool according to claim 2, characterized in that: The metal shell is placed on the lower mold; the grounding ring and the trigger are placed on the upper mold.

4. The automotive pressure sensor grounding ring crimping tool according to claim 3, characterized in that: The pressure pump structure comprises: A pressure pump is connected to the pressure pump via an air pipe on one side of the upper mold; An exhaust port is provided on one side of the pressure pump; A pressure switch is connected to the pressure pump.

5. The automotive pressure sensor grounding ring crimping tool according to claim 3, characterized in that: The grounding ring and the trigger are adsorbed by vacuum in the upper mold.

6. The automotive pressure sensor grounding ring crimping tool according to claim 3, characterized in that: The metal shell is placed in the lower mold; the lower mold positions the metal shell along the path where the grounding ring and the trigger are pressed into the metal shell.

7. The automotive pressure sensor grounding ring crimping tool according to claim 1, characterized in that: The downward pressure cylinder is a servo-driven cylinder.

8. The automotive pressure sensor grounding ring crimping tool according to claim 4, characterized in that: The pressure pump is a vacuum generator.

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