A machining positioning jig for a brake master cylinder

Abstract

The utility model provides a kind of brake master cylinder machining positioning jig, it is related to positioning tooling technical field, including bottom plate, first positioning block, second positioning block and first pressure cylinder are set on bottom plate, first positioning block is opened with U-shaped gap, second positioning block is in convex type, first pressure cylinder is set in the side of second positioning block away from first positioning block, the piston rod of first pressure cylinder sets first pressing block. When using, one end of pump body is placed in U-shaped gap, and the middle position of pump body is placed in second positioning block, control first pressure cylinder to press pump body in first positioning block, i.

Description

Technical Field

[0001] This utility model relates to the field of positioning tooling technology, and more specifically, to a positioning fixture for processing a brake master cylinder. Background Technology

[0002] The brake master cylinder, also known as the "brake master cylinder" or "brake master pump," is a key component of the vehicle's braking system. Depending on the vehicle, it is classified into two types: air brake master cylinders and hydraulic brake master cylinders. Generally, passenger vehicles (such as sedans and minivans) mostly use hydraulic brake master cylinders. Figure 1 The hydraulic brake master cylinder shown includes an oil cup and a pump body. The oil cup is locked to the pump body by bolt hoops. When installing the oil cup, the pump body needs to be fixed to facilitate the installation of the oil cup. Therefore, there is an urgent need for a positioning fixture for fixing the pump body of the brake master cylinder. Utility Model Content

[0003] This utility model provides a positioning fixture for machining a brake master cylinder, which aims to solve the above-mentioned technical problem of fixing the pump body of the brake master cylinder.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a brake master cylinder machining positioning fixture, comprising a base plate, wherein a first positioning block, a second positioning block and a first clamping cylinder are provided on the base plate, the first positioning block has a U-shaped notch, the second positioning block is convex, the first clamping cylinder is provided on the side of the second positioning block away from the first positioning block, and the piston rod of the first clamping cylinder is provided with a first pressing block.

[0005] Furthermore, a second pressing cylinder is provided on both sides of the first positioning block on the base plate, and a second pressing block is provided on the piston rod of the second pressing cylinder.

[0006] Furthermore, a support rod is provided on one side of the second positioning block on the base plate, and a positioning notch is provided on the support rod.

[0007] Furthermore, a positioning post is provided on the end face of the first positioning block facing the second positioning block.

[0008] Furthermore, the second positioning block has an additional clearance groove.

[0009] Furthermore, the first positioning block and the second positioning block are mounted on the base plate by bolts.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model discloses a simple and ingeniously designed positioning fixture for machining a brake master cylinder. It includes a base plate with a first positioning block, a second positioning block, and a first clamping cylinder. The first positioning block has a U-shaped notch, and the second positioning block is convex. The first clamping cylinder is located on the side of the second positioning block away from the first positioning block, and its piston rod is fitted with a first pressure block. In use, one end of the pump body is placed in the U-shaped notch, and the middle of the pump body is placed on the second positioning block. The first clamping cylinder is then used to press the pump body against the first positioning block, thus fixing the pump body. Finally, the oil cup is locked onto the pump body. The structure is simple, the operation is convenient, and it enables rapid fixing of the pump body, improving the efficiency of oil cup installation. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the brake master cylinder structure;

[0014] Figure 2 This is a schematic diagram of the structure of the brake master cylinder machining positioning fixture for fixing the pump body of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the positioning fixture for machining the brake master cylinder of this utility model.

[0016] Explanation of main component symbols

[0017] 10. Base plate; 101. First positioning block; 1011. U-shaped notch; 1012. Positioning post; 102. Second positioning block; 103. Support rod; 104. First clamping cylinder; 105. Second clamping cylinder;

[0018] 20. Master brake cylinder; 501. Oil cup; 502. Pump body; 5021. Shoulder; 5022. Positioning hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model. Therefore, the following detailed description of the embodiments of this utility model provided in the accompanying drawings is not intended to limit the scope of the claimed utility model, but merely represents selected embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0022] Example

[0023] like Figure 1 The hydraulic brake master cylinder 20 shown includes an oil cup 501 and a pump body 502. The oil cup 501 is locked to the pump body 502 by bolt hoops. Shoulders 5021 are provided on both sides of one end of the pump body 502, and positioning holes 5022 are opened in the shoulders 5021.

[0024] Reference Figure 2-3As shown, this utility model discloses a machining and positioning fixture for a brake master cylinder 20, including a base plate 10. A first positioning block 101, a second positioning block 102, and a first pressing cylinder 104 are provided on the base plate 10. The first positioning block 101 and the second positioning block 102 are used to support the pump body 502. The first pressing cylinder 104 is used to press the pump body 502 against the first positioning block 101 to achieve fixation with the pump body 502.

[0025] Reference Figure 2-3 As shown, the first positioning block 101 has a U-shaped notch 1011, the second positioning block 102 is convex, and the first pressing cylinder 104 is located on the side of the second positioning block 102 away from the first positioning block 101. The piston rod of the first pressing cylinder 104 is equipped with a first pressing block. Specifically, one end of the pump body 502 is placed in the U-shaped notch 1011, and a positioning post 1012 is set on the end face of the first positioning block 101 facing the second positioning block 102. The positioning post 1012 is inserted into the positioning holes 5022 of the shoulders 5021 on both sides of the pump body 502, which can realize the rapid placement of the pump body 502 and improve efficiency. The middle position of the pump body 502 is placed on the second positioning block 102, and the first pressing cylinder 104 is controlled to push the pump body 502 to press the shoulders 5021 on both sides of the first positioning block 101, thereby fixing the pump body 502. Furthermore, a second pressing cylinder 105 is provided on both sides of the first positioning block 101 on the base plate 10. The piston rod of the second pressing cylinder 105 is provided with a second pressing block. The second pressing cylinder 105 on both sides is controlled to push the second pressing block to press the shoulder 5021 of the pump body 502 to further press and fix the pump body 502 on the first positioning block 101.

[0026] Reference Figure 2-3 As shown, a support rod 103 is provided on one side of the second positioning block 102 on the base plate 10. A positioning notch is opened on the support rod 103. Specifically, the connection of the hoop is connected by the cooperation of the connecting plate and the bolt. The hoop is locked by tightening the bolt on the connecting plate. The notch of the support rod 103 is used to support the connecting plate.

[0027] In addition, a clearance groove is further provided on the second positioning block 102. Since the pump body 502 is made by casting, a forming line is left at its bottom. In order to make the pump body 502 stand stably, the forming line is aligned with the clearance groove when it is placed.

[0028] In another embodiment, the first positioning block 101 and the second positioning block 102 are bolted to the base plate 10. The bolted installation method allows for replacement according to different pump body 502 structures, improving practicality.

[0029] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning fixture for machining a brake master cylinder, characterized in that; The device includes a base plate, on which a first positioning block, a second positioning block, and a first pressing cylinder are provided. The first positioning block has a U-shaped notch, the second positioning block is convex, and the first pressing cylinder is located on the side of the second positioning block away from the first positioning block. The piston rod of the first pressing cylinder is provided with a first pressing block.

2. The brake master cylinder machining positioning fixture according to claim 1, characterized in that: The base plate is provided with second pressing cylinders on both sides of the first positioning block, and the piston rod of the second pressing cylinder is provided with a second pressing block.

3. The brake master cylinder machining positioning fixture according to claim 1, characterized in that: A support rod is provided on one side of the second positioning block on the base plate, and a positioning notch is provided on the support rod.

4. The brake master cylinder machining positioning fixture according to claim 1, characterized in that: A positioning post is provided on the end face of the first positioning block facing the second positioning block.

5. The brake master cylinder machining positioning fixture according to claim 1, characterized in that: The second positioning block is further provided with a clearance groove.

6. The brake master cylinder machining positioning fixture according to claim 1, characterized in that: The first positioning block and the second positioning block are mounted on the base plate by bolts.

Images