Fixture for machining distributor connecting flange

By designing a multi-directional positioning fixture and a hydraulically driven clamping device, the positioning and fixing problem of the connecting flange of the irregularly shaped distributor was solved, improving processing accuracy and efficiency, and realizing error prevention function.

CN223834022UActive Publication Date: 2026-01-27FJ IND NINGBO MACHINERY CO LTD
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Patent Information

Application Number
CN202423310801.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-27
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing fixtures are ineffective at positioning and securing irregularly shaped distributor connecting flanges, resulting in insufficient machining accuracy and affecting installation.

Method used

A fixture comprising a worktable, mounting base, clamping device, and hydraulic system was designed. Through multi-directional positioning and hydraulically driven clamping device, a stable clamping of the flange body is achieved, combined with the anti-misalignment function of the protruding column and arc groove.

Benefits of technology

It improves machining accuracy and efficiency, prevents flange body from loosening, enables simultaneous clamping at multiple stations, improves clamping efficiency, and prevents installation errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a distributor connecting flange machining clamp which comprises a workbench, a plurality of stations are arranged on the workbench, each station comprises a mounting base and a pressing device movably matched with the mounting base, the pressing devices are distributed in the circumferential direction of the mounting base, and the pressing devices are arranged on the workbench. Three stand columns distributed in the circumferential direction of the installation base are arranged on the upper end face of the installation base, and the stand columns and the pressing device are matched to form a containing space for installation of the flange body. According to the utility model, the flange body is positioned in multiple directions through the mounting seat and the pressing device, the effects of firm clamping and high stability are achieved, and the flange body is not easy to loosen during processing, so that the processing precision can be improved. By means of the clamp, milling of the opening end face of the through hole and the opening end face of the connecting hole can be completed through one-time disassembly and assembly, and the machining efficiency is high. And a plurality of stations can be used for clamping at the same time, so that the clamping efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing equipment technology, and in particular to a fixture for processing distributor connecting flanges. Background Technology

[0002] A fixture is a process device used during machining to quickly secure the workpiece and keep the machine tool, cutting tool, and workpiece in the correct relative position.

[0003] The main function of the distributor connecting flange is to ensure the normal operation of the distributor and accurate dosage distribution. Specifically, the distributor connecting flange plays several key roles in the distributor: ensuring sealing, improving safety, and facilitating maintenance and repair. There is currently a type of... Figure 7 The distributor connecting flange shown is generally in an irregular disc shape. It includes a flange body 100, with a through hole 101 at its center. The opening of the through hole 101 has a chamfered surface. Three connecting holes 102 are arranged along the circumference of the flange body 100, with chamfered openings. An arc-shaped protrusion 1021 is provided on the outer wall of the flange body 100 corresponding to the connecting holes 102. A hollow portion 103 is provided beside the through hole 101, and a connecting portion 104 is provided on the flange body 100 opposite to the hollow portion 103. During the production process, the end faces of the through hole 101 and the connecting holes 102 need to be milled. Because the distributor flange has an irregular shape, traditional fixtures have difficulty positioning and fixing it, resulting in insufficient milling accuracy and affecting the installation of the distributor connecting flange.

[0004] Therefore, it is necessary to improve the existing technology. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that in the prior art, due to the irregular shape of the distributor flange, traditional fixtures have difficulty in positioning and fixing such irregularly shaped distributor flanges, resulting in insufficient milling surface accuracy and thus affecting the installation of the distributor connecting flange. Therefore, a fixture for processing distributor connecting flanges is proposed.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A fixture for machining a distributor connecting flange includes a worktable with multiple workstations. Each workstation includes a mounting base and a clamping device that movably engages with the mounting base. The clamping device is distributed circumferentially along the mounting base. Three uprights are arranged circumferentially on the upper surface of the mounting base. The uprights and the clamping device cooperate to form an accommodating space for mounting the flange body. A protruding post corresponding to a hollowed-out portion is provided within the accommodating space.

[0008] Furthermore, the inner wall of the column is provided with an arc-shaped groove that corresponds to and engages with the arc-shaped protrusion.

[0009] Furthermore, the clamping device includes a support block for supporting the flange body, a clamping block corresponding to the support block, and a power source for providing clamping power to the clamping block.

[0010] Furthermore, one end of the clamping block abuts against the flange body, and the other end of the clamping block is connected to the power source.

[0011] Furthermore, the support block is provided with a protrusion that corresponds to and fits with the outer circumference of the flange body.

[0012] Furthermore, the power source is a hydraulic cylinder.

[0013] Furthermore, the workbench is equipped with a hydraulic master control that is connected to all the hydraulic cylinders respectively, and the hydraulic master control is equipped with a master oil inlet and a master oil outlet that are connected to all the hydraulic cylinders respectively.

[0014] Furthermore, the workbench is provided with an oil inlet pipe for connecting the oil inlets of all the hydraulic cylinders to the main oil inlet of the hydraulic control system; the workbench is also provided with an oil outlet pipe for connecting the oil outlets of all the hydraulic cylinders to the main oil outlet of the hydraulic control system.

[0015] Furthermore, the workbench is also equipped with a hydraulic gauge, the oil port of which is connected to the oil inlet pipe.

[0016] The beneficial effects of this utility model after adopting the above structure are as follows:

[0017] (1) The fixture for machining a distributor connecting flange according to this utility model includes a worktable with multiple workstations. Each workstation includes a mounting base and a clamping device that movably cooperates with the mounting base. The clamping device is distributed circumferentially along the mounting base. Three columns distributed circumferentially are provided on the upper end face of the mounting base. The columns cooperate with the clamping device to form an accommodating space for mounting the flange body. This utility model uses the mounting base and clamping device to position the flange body in multiple directions, achieving a firm clamping and high stability. The flange body is not easily loosened during machining, thereby improving machining accuracy. This fixture enables milling of the end face of the through hole and the end face of the connecting hole in a single disassembly and assembly, resulting in high machining efficiency. Furthermore, multiple workstations can be clamped simultaneously, improving clamping efficiency.

[0018] (2) The jig for processing a distributor connecting flange according to the present invention includes a protruding post in the accommodating space that corresponds to and cooperates with the hollowed-out portion. A connecting portion is provided on the flange body at a position opposite to the hollowed-out portion. The protruding post can prevent incorrect installation orientation of the flange body. When the flange body is installed in the wrong orientation, the protruding post interferes with the connecting portion, making it impossible for the flange body to be installed into the accommodating space, thereby achieving the error prevention function. Attached Figure Description

[0019] To more clearly illustrate the specific embodiments of this utility model, the accompanying drawings used in the description of the specific embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram showing the connection between the mounting base, the clamping device, and the flange body of this utility model.

[0022] Figure 3 This is a schematic diagram showing the connection between the mounting base and the clamping device of this utility model;

[0023] Figure 4 This is a three-dimensional schematic diagram of the mounting base of this utility model;

[0024] Figure 5 This is a cross-sectional view of the workbench of this utility model. Figure 1 ;

[0025] Figure 6 This is a cross-sectional view of the workbench of this utility model. Figure 2 ;

[0026] Figure 7 This is a three-dimensional schematic diagram of the flange body of this utility model.

[0027] Figures 1 to 7 The winning number is:

[0028] 1. Workbench; 11. Oil inlet pipe; 12. Oil outlet pipe; 2. Mounting base; 21. Column; 211. Arc groove; 3. Clamping device; 31. Support block; 311. Protrusion; 32. Clamping block; 33. Hydraulic cylinder; 331. Oil inlet; 332. Oil outlet; 4. Accommodation space; 41. Protrusion; 5. Hydraulic master control; 51. Main oil inlet; 52. Main oil outlet; 6. Hydraulic gauge; 61. Oil port; 100. Flange body; 101. Through hole; 102. Connection hole; 1021. Arc protrusion; 103. Hollowed-out part; 104. Connection part. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0030] In the description of this utility model, it should be understood that if terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, the term "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0033] In this utility model, unless otherwise explicitly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact, or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this invention are for illustrative purposes only and do not represent the only possible implementation.

[0035] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] like Figures 1 to 7 As shown, a jig for processing a distributor connecting flange includes a workbench 1 with multiple workstations. Each workstation includes a mounting base 2 and a clamping device 3 that movably engages with the mounting base 2. The clamping device 3 is distributed circumferentially along the mounting base 2. Three columns 21 distributed circumferentially are provided on the upper surface of the mounting base 2. The columns 21 and the clamping device 3 cooperate to form an accommodating space 4 for installing the flange body 100. The accommodating space 4 is provided with protruding columns 41 that correspond to and engage with the hollowed-out portion 103.

[0037] Based on the above embodiments, the present invention aims to provide a fixture for machining distributor connecting flanges, including a worktable 1 with multiple workstations. Each workstation includes a mounting base 2 and a clamping device 3 that movably engages with the mounting base 2. The clamping device 3 is distributed circumferentially along the mounting base 2. Three columns 21 distributed circumferentially are provided on the upper surface of the mounting base 2. The columns 21 and the clamping device 3 cooperate to form an accommodating space 4 for mounting the flange body 100. The present invention uses the mounting base 2 and the clamping device 3 to position the flange body 100 in multiple directions, achieving a firm clamping and high stability. During machining, the flange body 100 is less likely to loosen, thereby improving machining accuracy. This fixture allows for milling of the end faces of the through hole 101 and the connecting hole 102 in a single assembly and disassembly, resulting in high machining efficiency. Furthermore, multiple workstations can be clamped simultaneously, improving clamping efficiency.

[0038] In this embodiment, a protruding post 41 corresponding to and engaging with the hollowed-out portion 103 is provided within the accommodating space 4. A connecting portion 104 is provided on the flange body 100 opposite to the hollowed-out portion 103. The protruding post 41 prevents incorrect installation orientation of the flange body 100. When the flange body 100 is installed in the wrong orientation, the protruding post 41 interferes with the connecting portion 104, preventing the flange body 100 from being installed into the accommodating space 4, thereby achieving an error-proof function.

[0039] As another preferred embodiment of this utility model, the inner sidewall of the column 21 is provided with an arc-shaped groove 211 that corresponds to and mates with the arc-shaped protrusion 1021. In this embodiment, as... Figure 1 and Figure 2 As shown, the upper end face of the mounting base 2 is provided with three columns 21 distributed along its circumference. Each column 21 is provided with an arc-shaped groove 211. The arc-shaped groove 211 and the arc-shaped protrusion 1021 are correspondingly engaged to realize the error-proof installation and stable positioning of the flange body 100.

[0040] As another preferred embodiment of this utility model, the clamping device 3 includes a support block 31 for supporting the flange body 100, a clamping block 32 corresponding to the support block 31, and a power source for providing clamping power to the clamping block 32. One end of the clamping block 32 abuts against the flange body 100, and the other end of the clamping block 32 is connected to the power source. The support block 31 is provided with a protrusion 311 that corresponds to the outer circumference of the flange body 100. The power source is a hydraulic cylinder 33. In this embodiment, as... Figure 2 and Figure 3As shown, during installation, the flange body 100 is placed on the support block 31. The protrusion 311 limits the outer circumference of the flange body 100. Under the action of the power source, the clamping block 32 presses the flange body 100 onto the support block 31, realizing multi-point positioning and stable clamping of the flange body 100. During processing, the flange body 100 is not easy to loosen, thereby improving the processing accuracy.

[0041] As another preferred embodiment of this utility model, the workbench 1 is provided with a hydraulic master control 5 that is connected to all the hydraulic cylinders 33 respectively. The hydraulic master control 5 is provided with a main oil inlet 51 and a main oil outlet 52 that are connected to all the hydraulic cylinders 33 respectively. The workbench 1 is internally provided with an oil inlet pipe 11 for connecting the oil inlets 331 of all the hydraulic cylinders 33 to the main oil inlet 51 of the hydraulic master control 5; the workbench 1 is also internally provided with an oil outlet pipe 12 for connecting the oil outlets 332 of all the hydraulic cylinders 33 to the main oil outlet 52 of the hydraulic master control 5. In this embodiment, as... Figure 1 , Figure 5 and Figure 6 As shown, the hydraulic cylinders 33 of multiple stations on the workbench 1 are synchronously controlled by the hydraulic master control 5, thereby improving the efficiency of clamping operations.

[0042] As another preferred embodiment of this utility model, the workbench 1 is further provided with a hydraulic gauge 6, the oil port 61 of which is connected to the oil inlet pipe 11. In this embodiment, as... Figure 1 and Figure 5 As shown, the hydraulic gauge 6 is set up to facilitate observation of the working oil pressure of the hydraulic cylinder 33.

[0043] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this utility model.

Claims

1. A fixture for machining distributor connection flanges, comprising a worktable (1), characterized in that: The workbench (1) is provided with multiple workstations, each workstation including a mounting base (2) and a clamping device (3) that is movably engaged with the mounting base (2). The clamping device (3) is distributed around the mounting base (2). The upper surface of the mounting base (2) is provided with three columns (21) distributed around its circumference. The columns (21) and the clamping device (3) cooperate to form an accommodating space (4) for the flange body (100) to be installed. The accommodating space (4) is provided with a protruding column (41) that corresponds to and engages with the hollow part (103).

2. The fixture for machining a distributor connecting flange according to claim 1, characterized in that: The inner wall of the column (21) is provided with an arc groove (211) that corresponds to and cooperates with the arc protrusion (1021).

3. A fixture for machining a distributor connecting flange according to claim 2, characterized in that: The clamping device (3) includes a support block (31) for supporting the flange body (100), a clamping block (32) corresponding to the support block (31), and a power source for providing clamping power to the clamping block (32).

4. A fixture for machining a distributor connecting flange according to claim 3, characterized in that: One end of the clamping block (32) abuts against the flange body (100), and the other end of the clamping block (32) is connected to the power source.

5. A fixture for machining a distributor connecting flange according to claim 3, characterized in that: The support block (31) is provided with a protrusion (311) that corresponds to and cooperates with the outer circumference of the flange body (100).

6. A fixture for machining a distributor connecting flange according to claim 3, characterized in that: The power source is a hydraulic cylinder (33).

7. A fixture for machining a distributor connecting flange according to claim 6, characterized in that: The workbench (1) is provided with a hydraulic master control (5) that is connected to all the hydraulic cylinders (33) respectively. The hydraulic master control (5) is provided with a main oil inlet (51) and a main oil outlet (52) that are connected to all the hydraulic cylinders (33) respectively.

8. A fixture for machining a distributor connecting flange according to claim 7, characterized in that: The workbench (1) is provided with an oil inlet pipe (11) for connecting the oil inlets (331) of all the hydraulic cylinders (33) with the main oil inlet (51) of the hydraulic control (5); the workbench (1) is also provided with an oil outlet pipe (12) for connecting the oil outlets (332) of all the hydraulic cylinders (33) with the main oil outlet (52) of the hydraulic control (5).

9. A fixture for machining a distributor connecting flange according to claim 8, characterized in that: The workbench (1) is also equipped with a hydraulic gauge (6), and the oil port (61) of the hydraulic gauge (6) is connected to the oil inlet pipe (11).