A kind of oil pump front shell processing clamp

By designing a clamping mechanism and abutment structure, the problems of unstable fixing and poor adaptability in the machining of the front housing of the oil pump were solved, achieving high-precision, stable and efficient machining results, and improving production efficiency and product quality.

CN224374029UActive Publication Date: 2026-06-19GUIZHOU HONGKAI MFG CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIZHOU HONGKAI MFG CO LTD
Filing Date
2025-06-23
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Existing jigs for machining the front housing of oil pumps cannot effectively adapt to diverse shape features, resulting in unreliable fixation, low machining accuracy, and difficulty in adapting to workpieces of different sizes and shapes, leading to poor operability and affecting production efficiency and quality.

Method used

A fixture including a side clamping mechanism and an abutment structure was designed. The movable plate and the moving plate are driven by a cylinder to achieve multi-directional limiting, ensuring the stability and precise fixation of the workpiece during the processing, and adapting to oil pump front housings of different sizes.

Benefits of technology

It improves machining accuracy and quality consistency, reduces machining errors, enhances the adaptability and production efficiency of fixtures, reduces scrap rate, and improves the market competitiveness of products.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224374029U_ABST
    Figure CN224374029U_ABST
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Abstract

This utility model relates to the field of oil pump front housing processing technology, and more particularly to a fixture for processing oil pump front housings. It includes a worktable, with a side clamping mechanism, a first abutment structure, and a second abutment structure respectively arranged on the top of the worktable. The side clamping mechanism includes a first cylinder, a movable plate, a side clamping plate, and a guide post. Both the first and second abutment structures include a second cylinder, a movable plate, a bracket, grippers, support blocks, and rollers. A third cylinder is installed at the bottom of the worktable, and the output end of the third cylinder is connected to a sliding frame. This utility model ensures that the oil pump front housing is firmly fixed during processing, preventing workpiece displacement or vibration. It allows for flexible adjustment and precise limiting according to oil pump front housings of different sizes, not only improving processing accuracy and product quality, reducing production costs, but also increasing production efficiency, thus possessing significant economic and social value.
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Description

Technical Field

[0001] This utility model relates to the field of oil pump front housing processing technology, specifically a fixture for processing oil pump front housing. Background Technology

[0002] The front housing of an oil pump is a crucial component, primarily responsible for housing and protecting the internal components and ensuring proper operation during operation. Due to the complex shape and high precision requirements of the front housing, manufacturing processes demand stringent control over machining accuracy, surface quality, and geometry. To improve machining efficiency and precision, fixtures are often used for positioning and fixing. However, existing fixtures for machining the front housing of oil pumps have some significant drawbacks, impacting machining quality and production efficiency.

[0003] First, traditional fixture designs are mostly based on fixed methods, which often cannot effectively adapt to the diverse shape characteristics of the oil pump front housing. This results in unreliable fixation, easily leading to workpiece displacement or uneven clamping, thus affecting machining accuracy. In addition, existing fixtures often adopt standardized designs, making it difficult to make personalized adjustments and optimizations for specific oil pump front housings, thus limiting their applicability to workpieces of different sizes and shapes.

[0004] Secondly, because the material of the oil pump front housing is generally quite hard and has high wear resistance, traditional fixtures often cannot withstand the large cutting forces generated during machining, which can easily lead to fixture deformation or damage, resulting in unstable machining quality. Especially when performing high-precision machining, insufficient fixture rigidity or uneven clamping force may cause the part's dimensional and positional tolerances to exceed the tolerance, affecting the product's quality pass rate.

[0005] Furthermore, existing fixtures have poor operability, requiring considerable time for workpiece adjustment and replacement, thus reducing production efficiency. For mass production, this inefficient working method severely impacts production rhythm and fails to meet the demands of modern manufacturing for rapid delivery. No solutions have yet been proposed to address these technical issues. Utility Model Content

[0006] To address the problems in related technologies, this utility model proposes a fixture for machining the front housing of an oil pump, overcoming the aforementioned technical issues in existing technologies. The purpose of this utility model is to ensure that the front housing of the oil pump is firmly fixed during machining, effectively preventing workpiece displacement or vibration during machining, thereby greatly improving machining accuracy. It can be flexibly adjusted and precisely limited according to oil pump front housings of different sizes, while maintaining stable machining quality in multiple machining processes, reducing machining errors caused by fixture accuracy issues, improving product quality consistency, and ensuring product competitiveness in the market.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a jig for machining the front housing of an oil pump, comprising a worktable, wherein the top of the worktable is respectively provided with a side clamping mechanism, an abutment structure one and an abutment structure two;

[0008] The side clamping mechanism includes a cylinder, a movable plate, a side clamping plate, and a guide column. The cylinder is fixedly installed on the workbench. The bottom of the movable plate is movably connected to the workbench. The output end of the cylinder is connected to one side of the movable plate. The movable plate is connected to the side clamping plate through the guide column.

[0009] Both the first and second abutment structures include a second cylinder, a movable plate, a bracket, grippers, support blocks, and rollers. The second cylinder is fixedly mounted on the workbench. One end of the movable plate is connected to the output end of the second cylinder, and the bottom of the movable plate is movably connected to the workbench. The bracket is fixedly mounted on the other end of the movable plate. The grippers and support blocks are both mounted on the bracket. Several rollers are provided, and they are all mounted on the support blocks.

[0010] Preferably, a cylinder three is installed at the bottom of the workbench, and a sliding frame is connected to the output end of the cylinder three. The output end of the cylinder three is connected to the sliding frame, and the sliding frame is movably connected to the workbench. The abutment structure two is installed on the sliding frame.

[0011] Preferably, the movable plate, the sliding plate, and the sliding frame are all equipped with sliders, and the worktable is equipped with guide rails, which are movably connected to the sliders.

[0012] Preferably, both the side clamping mechanism and the abutment structure are provided in two sets.

[0013] Preferably, the bottom of the workbench is provided with a base.

[0014] Preferably, mounting plates are installed around the bottom of the base.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] (1) This utility model is a jig for machining the front housing of an oil pump. By setting two sets of side clamping mechanisms, the two sides of the workpiece can be fixed respectively. The starting cylinder can drive the movable plate to move on the worktable. When the movable plate moves, it drives the side clamping plate connected by the guide column to move, which facilitates clamping the side of the front housing of the oil pump. This ensures that the front housing of the oil pump is firmly fixed during the machining process, effectively preventing the displacement or vibration of the workpiece during the machining process, thereby greatly improving the machining accuracy.

[0017] (2) This utility model is a fixture for machining the front housing of an oil pump. By setting up abutment structure one and abutment structure two, starting cylinder two drives the moving plate to move. When the moving plate moves, it drives the jaws and support blocks on the bracket to move, thereby clamping the corners of the workpiece. The rollers effectively improve the clamping firmness. It can be flexibly adjusted and precisely limited according to the front housing of the oil pump of different sizes. At the same time, it can maintain stable machining quality in multiple machining processes, reduce machining errors caused by fixture accuracy problems, improve product quality consistency, and ensure the competitiveness of the product in the market. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 for Figure 1 An enlarged structural diagram of part A;

[0020] Figure 3 This is a structural schematic diagram of the present invention viewed from below. Attached image description:

[0022] 1. Workbench; 2. Cylinder 1; 3. Movable plate; 4. Side clamping plate; 5. Guide column; 6. Cylinder 2; 7. Moving plate; 8. Bracket; 9. Gripper; 10. Support block; 11. Roller; 12. Cylinder 3; 13. Sliding frame; 14. Guide rail; 15. Base; 16. Mounting plate. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Example

[0025] Please see Figure 1-3 This utility model proposes a technical solution for a jig for machining the front housing of an oil pump: a jig for machining the front housing of an oil pump includes a worktable 1, and the top of the worktable 1 is respectively provided with a side clamping mechanism, abutment structure one and abutment structure two;

[0026] The side clamping mechanism includes cylinder 2, movable plate 3, side clamping plate 4, and guide post 5. Cylinder 2 is fixedly installed on the worktable 1. The bottom of the movable plate 3 is movably connected to the worktable 1. The output end of cylinder 2 is connected to one side of the movable plate 3. The movable plate 3 is connected to the side clamping plate 4 through the guide post 5. Specifically, starting cylinder 2 can drive the movable plate 3 to move on the worktable 1. When the movable plate 3 moves, it drives the side clamping plate 4 connected through the guide post 5 to move, which facilitates clamping the side of the front housing of the oil pump.

[0027] Both the first and second abutment structures include a second cylinder 6, a movable plate 7, a bracket 8, a gripper 9, a support block 10, and rollers 11. The second cylinder 6 is fixedly installed on the worktable 1. One end of the movable plate 7 is connected to the output end of the second cylinder 6, and the bottom of the movable plate 7 is movably connected to the worktable 1. The bracket 8 is fixedly installed on the other end of the movable plate 7. The gripper 9 and the support block 10 are both installed on the bracket 8. Several rollers 11 are provided, and they are all installed on the support block 10. Specifically, when the second cylinder 6 is started, the movable plate 7 is moved. When the movable plate 7 moves, it drives the gripper 9 and the support block 10 on the bracket 8 to move, thereby clamping the edges and corners of the workpiece. The rollers 11 effectively improve the clamping firmness.

[0028] Please see Figure 3 As shown, a cylinder 12 is further installed at the bottom of the workbench 1. The output end of the cylinder 12 is connected to a sliding frame 13. The output end of the cylinder 12 is connected to the sliding frame 13. The sliding frame 13 is movably connected to the workbench 1. The abutment structure 2 is installed on the sliding frame 13.

[0029] In this embodiment, the start cylinder 12 can drive the sliding frame 13 to move, which facilitates the adjustment of the position of the abutment structure 2.

[0030] Please see Figure 1-3 As shown, sliders are provided on the movable plate 3, the moving plate 7 and the sliding frame 13, and a guide rail 14 is installed on the worktable 1, with the guide rail 14 movably connected to the slider.

[0031] In this embodiment, when the movable plate 3, the moving plate 7, and the sliding frame 13 move, they drive the slider connected to them to move on the guide rail 14 of the worktable 1, which effectively improves the stability of the movement of the movable plate 3, the moving plate 7, and the sliding frame 13.

[0032] Please see Figure 1 As shown, both the side clamping mechanism and the abutment structure are provided in two sets.

[0033] Please see Figure 1 As shown, a base 15 is further provided at the bottom of the workbench 1.

[0034] In this embodiment, the base 15 can support the worktable 1.

[0035] Please see Figure 1 As shown, furthermore, mounting plates 16 are installed around the bottom of the base 15.

[0036] In this embodiment, the mounting plate 16 can mount the base 15.

[0037] The working principle of this utility model:

[0038] The workpiece to be fixed is placed on the workbench 1. First, the workpiece is clamped by two side clamping mechanisms. Simultaneously, two cylinders 1 2 are started, which can drive two movable plates 3 to move on the workbench 1. When the movable plates 3 move, they drive the side clamping plates 4 connected by the guide column 5 to move closer to each other, which facilitates clamping the side of the front housing of the oil pump. Then, the first and second abutment structures are started to fix the side of the workpiece. The second cylinder 6 is started to drive the movable plate 7 to move. When the movable plate 7 moves, it drives the gripper 9 and the support block 10 on the bracket 8 to move, thereby clamping the corners of the workpiece. The roller 11 effectively improves the clamping firmness. The third cylinder 12 is started to drive the sliding frame 13 to move, which facilitates the adjustment of the position of the second abutment structure.

[0039] This invention, through multi-directional limiting of the workpiece, ensures the oil pump front housing is firmly fixed during processing, effectively preventing displacement or vibration, thus greatly improving processing accuracy. The fixture maintains high stability and consistency, ensuring that the dimensions and geometric tolerances of the final processed part meet design requirements, improving the overall quality of the parts. The fixture can be flexibly adjusted and precisely limited according to oil pump front housings of different sizes, not only enhancing its adaptability to meet the processing needs of oil pump front housings of different specifications and models, but also allowing for quick and precise adjustment of the fixture during mass production, saving time on mold changes and debugging, and significantly improving production efficiency. Especially in mass production, the precise adjustment of the fixture can effectively avoid defects caused by dimensional deviations, reducing scrap rates, and maintaining stable processing quality during multiple processing steps, reducing processing errors caused by fixture accuracy issues, improving product quality consistency, and ensuring product competitiveness in the market. The high adaptability and high precision of the fixture can also significantly improve the automation level of the production line, reduce human operation errors, and further optimize the production process.

[0040] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the 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.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", 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 connection 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.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixture for machining the front housing of an oil pump, characterized in that, Includes a workbench (1), the top of which is provided with a side clamping mechanism, abutment structure one and abutment structure two; The side clamping mechanism includes a cylinder (2), a movable plate (3), a side clamping plate (4), and a guide post (5). The cylinder (2) is fixedly installed on the workbench (1). The bottom of the movable plate (3) is movably connected to the workbench (1). The output end of the cylinder (2) is connected to one side of the movable plate (3). The movable plate (3) is connected to the side clamping plate (4) through the guide post (5). Both the first and second abutment structures include a second cylinder (6), a moving plate (7), a bracket (8), a gripper (9), a support block (10), and rollers (11). The second cylinder (6) is fixedly installed on the workbench (1). One end of the moving plate (7) is connected to the output end of the second cylinder (6). The bottom of the moving plate (7) is movably connected to the workbench (1). The bracket (8) is fixedly installed on the other end of the moving plate (7). The gripper (9) and the support block (10) are both installed on the bracket (8). Several rollers (11) are provided and are all provided on the support block (10).

2. An oil pump front housing machining fixture according to claim 1, characterized in that: A cylinder three (12) is installed at the bottom of the workbench (1). The output end of the cylinder three (12) is connected to a sliding frame (13). The output end of the cylinder three (12) is connected to the sliding frame (13). The sliding frame (13) is movably connected to the workbench (1). The abutment structure two is installed on the sliding frame (13).

3. An oil pump front housing machining fixture according to claim 2, characterized in that: The movable plate (3), the moving plate (7) and the sliding frame (13) are all equipped with sliders, and the worktable (1) is equipped with a guide rail (14), which is movably connected to the slider.

4. An oil pump front housing machining fixture according to claim 1, characterized in that: Both the side clamping mechanism and the abutment structure are provided in two sets.

5. An oil pump front housing machining fixture according to claim 1, characterized in that: The bottom of the workbench (1) is provided with a base (15).

6. A fixture for machining the front housing of an oil pump according to claim 5, characterized in that: Mounting plates (16) are installed around the bottom of the base (15).