A fuel pump housing machining clamp

Abstract

The utility model relates to fuel pump machining equipment technical field, concretely is a kind of fuel pump shell machining clamp, the upper end of bearing station is fixedly arranged motor, motor is located one side of circular plate, and the output end of motor is equipped with the rotating shaft that penetrates bearing station, the lower end of circular plate is fixedly arranged gear ring, the lower end of rotating shaft is fixedly arranged gear, and gear is engaged with gear ring, this clamp can realize the 360 ° accurate angle adjustment of fuel pump shell by the transmission structure of "motor-rotating shaft-gear-gear ring", and the height adjusting structure of "lifting assembly-vertical rod-ring block", cooperate the guiding effect of slider and sliding slot (T-shaped section), the height of bearing station and shell can be stably adjusted, operator need not bend, probe or change station, just need to be rotated to convenient angle by control panel to the part to be machined, both avoid the overhead light obstruction caused by station adjustment, guarantee that processing area light is sufficient, and reduce the operation time waste.

Description

Technical Field

[0001] This utility model relates to the technical field of fuel pump processing equipment, specifically a fuel pump housing processing fixture. Background Technology

[0002] As the core load-bearing component of the fuel system, the fuel pump housing is often manufactured using die casting as the main process. Although this process can efficiently achieve the one-piece molding of the complex structure of the housing, the dimensional accuracy of the key functional parts of the housing after die casting is difficult to directly meet the assembly requirements. It is necessary to carry out precision finishing through subsequent machining to ensure that the dimensional tolerances and performance of the final product meet the standards.

[0003] However, the existing fuel pump housing machining process has obvious operational pain points: during machining, the housing needs to be clamped and fixed on a special fixture to ensure stability. However, due to the structure of the housing itself, some machining parts are located opposite the operator or at different heights. To complete the machining of these parts, the operator needs to frequently adjust their standing position, or even bend over or lean out to operate, which reduces the subsequent machining efficiency of the fuel pump housing. It is also easy to cause machining deviations due to insufficient visual clarity, or to miss surface burrs, dimensional deviations and other problems due to blind spots, ultimately reducing machining efficiency. Utility Model Content

[0004] (a) Technical problems to be solved To address the shortcomings of existing technologies, this utility model provides a fuel pump housing machining fixture.

[0005] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a fuel pump housing processing fixture, including a base plate and a support platform, a control module is fixedly installed on the upper end of the support platform, the control module is provided with a control panel, the support platform is located above the base plate, a circular plate is rotatably installed on the support platform via a first bearing, two support frames are symmetrically arranged on the upper end of the circular plate, a propulsion assembly is fixedly installed on the top of the support frame, the output end of the propulsion assembly is provided with a drive rod that penetrates the support frame, a detachable positioning plate is provided at the end of the drive rod away from the support frame, and a clamping groove is provided on the inner side of the positioning plate; A motor is fixedly installed at the upper end of the support platform. The motor is located on one side of the circular plate. The output end of the motor is provided with a rotating shaft that passes through the support platform. A gear ring is fixedly installed at the lower end of the circular plate. A gear is fixedly installed at the lower end of the rotating shaft. The gear meshes with the gear ring. Multiple L-shaped support plates are symmetrically arranged on both sides of the support platform. The bottom end of the L-shaped support plate is located below the circular plate, and multiple ball bearings are rolled at the bottom of the L-shaped support plate to contact the lower surface of the circular plate.

[0006] To facilitate the adjustment of the height of the support platform, the present invention includes an improvement in that the upper end of the base plate is provided with a drive assembly for moving the support platform. The drive assembly includes a lifting assembly and an annular block. The lifting assembly is fixed to the upper end of the base plate, and the annular block is fixed to the output end of the lifting assembly. The output end of the lifting assembly is provided with a vertical rod connecting to the annular block. The top end of the vertical rod is provided with a positioning plate, and the positioning plate is fixed to the lower end of the annular block by screws.

[0007] To facilitate the assembly of the clamping block, the present invention includes an improvement whereby a positioning plate is provided at one end of the drive rod, and the positioning plate is fixed to the outside of the clamping block by screws.

[0008] To improve the stability of the circular plate during use, the present invention includes the following improvements: a circular groove is provided on the support platform, the circular plate is located inside the circular groove, the outer ring of the first bearing is interference-fitted with the inner wall of the circular groove, the inner ring of the first bearing is interference-fitted with the outer wall of the circular plate, and a second bearing is embedded in the inner ring of the annular base, the inner ring of the second bearing being interference-fitted with the outer ring of the annular block.

[0009] To improve the stability of the support platform during use, the present invention includes the following improvements: the inner side of the vertical plate is provided with a sliding groove, and the two sides of the support platform are provided with sliders that slide in cooperation with the sliding groove. The cross-section of the sliding groove is T-shaped.

[0010] (III) Beneficial Effects Compared with the prior art, the present invention provides a fuel pump housing machining fixture, which has the following beneficial effects: This fixture, through a transmission structure of "motor-shaft-gear-gear ring" combined with the auxiliary action of the first bearing and ball bearings, can achieve 360° precise angle adjustment of the fuel pump housing. The height adjustment structure of "lifting component-vertical rod-ring block," along with the guiding action of the slider and slide groove (T-shaped cross-section), can stably adjust the height of the support platform and housing. Operators do not need to bend over, lean out, or change positions; they can simply rotate the part to be processed to a convenient angle via the control panel. This avoids overhead light obstruction caused by position adjustments, ensuring sufficient lighting in the processing area, and reduces wasted operation time. Furthermore, the improved visual clarity effectively avoids processing deviations and burr omissions, significantly improving processing efficiency and product precision. Attached Figure Description

[0011] Figure 1 This is a first-view perspective three-dimensional structural diagram of the present invention; Figure 2 This is a second-view three-dimensional structural diagram of the present invention; Figure 3 This utility model Figure 1 The main view; In the diagram: 1. Base plate; 2. Support platform; 3. Circular plate; 4. Support frame; 5. Propulsion assembly; 6. Positioning plate; 7. Clamping block; 8. Gear ring; 9. L-shaped support plate; 10. Motor; 11. Gear; 12. Control module; 13. Vertical plate; 14. Slider; 15. Slide groove; 16. Lifting assembly; 17. Annular base; 18. Annular block. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0013] Please see Figures 1-3 This utility model proposes a fuel pump housing processing fixture, including a base plate 1 and a support platform 2. A control module 12 is fixedly installed on the upper end of the support platform 2. The control module 12 is equipped with a control panel. The support platform 2 is located above the base plate 1. A circular plate 3 is rotatably installed on the support platform 2 through a first bearing. Two support frames 4 are symmetrically arranged on the upper end of the circular plate 3. A push assembly 5 is fixedly installed on the top of the support frame 4. The output end of the push assembly 5 is provided with a drive rod that passes through the support frame 4. A detachable positioning plate 6 is provided at the end of the drive rod away from the support frame 4. A clamping groove is provided on the inner side of the positioning plate 6. A motor 10 is fixedly installed at the upper end of the support platform 2. The motor 10 is located on one side of the circular plate 3. The output end of the motor 10 is provided with a rotating shaft that passes through the support platform 2. A gear ring 8 is fixedly installed at the lower end of the circular plate 3. A gear 11 is fixedly installed at the lower end of the rotating shaft. The gear 11 meshes with the gear ring 8. Multiple L-shaped support plates 9 are symmetrically arranged on both sides of the support platform 2. The bottom end of the L-shaped support plate 9 is located below the circular plate 3. Multiple ball bearings that roll in contact with the lower surface of the circular plate 3 are arranged on the bottom of the L-shaped support plate 9.

[0014] The support platform 2 is provided with a circular groove, and the circular plate 3 is located inside the circular groove. The outer ring of the first bearing is interference-fitted with the inner wall of the circular groove, and the inner ring of the first bearing is interference-fitted with the outer wall of the circular plate 3. The inner ring of the annular base 17 is inlaid with a second bearing, and the inner ring of the second bearing is interference-fitted with the outer ring of the annular block 18.

[0015] Fuel pump housing clamping and fixing stage: Place the fuel pump housing to be processed on the upper surface of the circular plate 3, ensuring that the part of the housing to be processed is unobstructed.

[0016] Start the propulsion assembly 5 via the control panel: the drive rod moves along the support frame 4 through the direction, and as the drive rod moves, the clamping block 7 moves closer to the housing in sync.

[0017] One end of the drive rod is provided with a positioning plate 6, which is fixed to the outside of the clamping block 7 by screws.

[0018] When the clamping groove on the inner side of the clamping block 7 is fully fitted with the outer contour of the fuel pump housing, the operation of the push assembly 5 is stopped by the control panel. The shape of the clamping groove is adapted to the contour of the housing, which can achieve precise positioning and clamping of the housing, avoid housing displacement during processing, and complete the clamping and fixing of the fuel pump housing.

[0019] Processing angle adjustment stage: If the part of the fuel pump housing to be processed is in an area that is difficult for the operator to reach from the conventional processing angle, start the motor 10 on the upper end of the support platform 2 through the control panel: the output end of the motor 10 drives the rotating shaft to rotate, and the gear 11 fixed at the lower end of the rotating shaft rotates synchronously. Since the gear 11 meshes with the gear ring 8 fixed at the lower end of the circular plate 3, the rotation of the gear 11 will drive the gear ring 8 and the circular plate 3 to rotate slowly around the first bearing.

[0020] During this process, the balls at the bottom of the L-shaped support plate 9 below the circular plate 3 roll as the circular plate 3 rotates, which not only provides auxiliary support for the circular plate 3, but also reduces the frictional resistance when the circular plate 3 rotates. Meanwhile, the annular block 18 rotates synchronously with the circular plate 3 under the action of the second bearing in the annular base 17, so as to avoid interference between the drive component and the circular plate 3 when the angle is adjusted.

[0021] When the part of the housing to be processed is rotated to an angle that is convenient for the operator to process, the motor 10 is stopped through the control panel to complete the precise adjustment of the processing angle.

[0022] Processing height adjustment stage: The upper end of the base plate 1 is provided with a drive assembly for moving the support platform 2. The drive assembly includes a lifting assembly 16 and an annular block 18. The lifting assembly 16 is fixed to the upper end of the base plate 1, and the annular block 18 is fixed to the output end of the lifting assembly 16. The output end of the lifting assembly 16 is provided with a vertical rod connecting the annular block 18. The top end of the vertical rod is provided with a positioning plate 6, which is fixed to the lower end of the annular block 18 by screws.

[0023] The inner side of the vertical plate 13 is provided with a sliding groove 15, and the two sides of the support platform 2 are provided with sliders 14 that slide in cooperation with the sliding groove 15. The cross section of the sliding groove 15 is T-shaped.

[0024] Start the lifting assembly 16 on the base plate 1 via the control panel: the output end of the lifting assembly 16 drives the vertical rod to move vertically, the positioning plate 6 at the top of the vertical rod drives the ring block 18 to rise and fall simultaneously, and the ring block 18 further drives the entire support platform 2 to move.

[0025] During this process, the sliders 14 on both sides of the support platform 2 slide smoothly along the slide groove 15 (T-shaped section) on the inner side of the vertical plate 13, ensuring that the support platform 2 is raised and lowered without deviation or shaking. At the same time, the circular plate 3 rises and falls synchronously with the support platform 2, and the height of the fuel pump housing clamped on the circular plate 3 is adjusted accordingly.

[0026] When the housing height reaches the position suitable for processing requirements, stop the lifting assembly 16 via the control panel to complete the adjustment of the processing height.

[0027] Auxiliary stabilization stage of processing: After the fuel pump housing enters the processing state, the L-shaped support plate 9 continuously provides auxiliary support for the circular plate 3, and works with the first bearing to ensure that the circular plate 3 remains stable under processing vibration; The sliding engagement between the sliders 14 and the slide grooves 15 on both sides of the bearing platform 2, and the rotational engagement between the annular block 18 and the second bearing, further enhance the overall structure's vibration resistance, prevent machining vibration from causing the housing position to shift or the fixture components to loosen, and ensure the stability of the machining process.

[0028] The clamping block 7 driven by the propulsion component 5 is detachably connected to the drive rod via the positioning plate 6 (fixed with screws), which facilitates the replacement of the appropriate clamping block 7 according to different specifications of fuel pump housing.

[0029] Control Module 12 (Core Control Component): Recommended selection: Industrial-grade PLC controllers (such as Siemens S7-200 SMART series, Mitsubishi FX3U series); Reasons for selection: Functional adaptation: Simultaneous control of propulsion component 5 (clamping / releasing), motor 10 (angle adjustment), and lifting component 16 (height adjustment) is required. The PLC has multi-channel digital / analog input / output interfaces, which can accurately receive control panel instructions and provide feedback on the operating status of each component, realizing the linkage control of "clamping-angle-height" to avoid processing deviations caused by the loss of control of a single component. Environmental tolerance: The industrial-grade PLC has strong anti-electromagnetic interference capability (compliant with GB / T 17626 electromagnetic compatibility standard), and can withstand metal shavings, slight vibration and 30-40℃ ambient temperature environment in the fuel pump processing workshop, avoiding signal disorder or hardware failure. Operational flexibility: Supports programming and debugging, and can adjust the clamping force of propulsion component 5, the rotation angle of motor 10, and the lifting speed of lifting component 16 according to the processing requirements of fuel pump housings of different specifications, adapting to diverse processing scenarios and with low maintenance costs.

[0030] Control panel (human-computer interaction component): Selection recommendation: Industrial waterproof and dustproof button panels (such as Schneider XB2 series, ABBM2SS series); Reasons for selection: Durability and Protection: The processing environment may contain metal shavings and cutting fluid splashes. The panel must have an IP65 or higher protection rating to prevent impurities from entering the interior and causing short circuits. The buttons have a mechanical life of ≥100,000 cycles and can withstand frequent operation (such as starting / stopping the push assembly 5, adjusting the angle / height) to avoid rapid damage. Functional compatibility: It must include core buttons such as "Master Start / Stop", "Push Component 5 Clamp / Release", "Motor 10 Forward / Reverse (Angle Adjustment)", "Lifting Component 16 Upward / Down", and "Emergency Stop". The emergency stop button adopts a red mushroom head design, which complies with safety regulations and can quickly cut off the power supply of the equipment in case of emergency. Visualization and convenience: The panel can integrate small indicator lights (such as "clamping complete", "angle in place", "height in place") to intuitively reflect the status of the equipment, eliminating the need for operators to frequently check the mechanical structure and reducing operational complexity.

[0031] Propulsion component 5 (housing clamping drive component): Recommended selection: Industrial-grade electric linear actuators (such as Thomson Electrak series and Evelli IL series); Reasons for selection: Precise control range and thrust adaptation: The clamping block 7 needs to be moved in a fixed direction. The electric push rod supports adjustable stroke (to adapt to the clamping requirements of fuel pump housings of different sizes). The thrust range of 500-1000N can meet the housing clamping requirements (avoiding excessive thrust that will damage the housing or insufficient thrust that will not clamp it). It also has a position feedback function (such as potentiometer feedback) and can be linked with the control module 12 to achieve "stop when the clamping slot fits the housing", ensuring clamping accuracy. Structural compatibility: Compact size, can be directly fixed to the top of support frame 4, and the output end is rigidly connected to the drive rod, eliminating the need for complex pipelines (such as air pipes / oil pipes required for pneumatic / hydraulic push rods), thus avoiding pipeline entanglement or leakage in the processing workshop; Operational stability: Operating noise ≤60dB, suitable for workshop environment, and the propulsion speed can be adjusted by control module 12 (low speed approaching the shell, high speed resetting), reducing the impact on the shell during clamping.

[0032] Motor 10 (Angle Adjustment Drive Component): Selection recommendation: Small servo motors (such as Panasonic A6 series, Delta ASD-A2 series); Reasons for selection: Precise angle control: The circular plate 3 needs to be slowly rotated around the first bearing (to adjust the processing angle of the housing). The positioning accuracy of the servo motor can reach ±0.01°. The rotation angle (such as 30°, 90°, 180°) can be set through the control module 12 to avoid the angle deviation of manual adjustment and ensure that the part to be processed is accurately aligned with the operator. Torque adaptation: Motor 10 needs to drive gear 11 to mesh with gear ring 8 for transmission. The torque of a small servo motor (power 50-100W) can meet the transmission requirements and has a torque protection function. If the circular plate 3 is stuck due to foreign objects, motor 10 can automatically stop to avoid damage to gear 11 / gear ring 8. Linkage compatibility: Supports pulse signal control and can communicate seamlessly with control module 12 to achieve automated control of "start-rotation-stop" without manual intervention in the angle adjustment process.

[0033] Lifting component 16 (height adjustment drive component): Selection recommendation: Precision electric lifting module (such as HIWINKK series, JactonJTC electric lifting column); Reasons for selection: Stable load and precise height control: The electric lifting module can lift the entire load-bearing platform 2, circular plate 3 and housing. The load capacity of the electric lifting module can reach 50-100kg, which can completely cover the weight of the fixture. The positioning accuracy is ±0.02mm. The lifting height can be set by controlling module 12 (to adapt to different processing tools or operator heights) to avoid processing inconvenience caused by height deviation. Guiding coordination: In cooperation with the sliders 14-slide grooves 15 (T-shaped cross section) on both sides of the support platform 2, the lifting module can keep the support platform 2 moving smoothly without deviation or shaking, ensuring the stability of the clamping state during the adjustment of the housing height; Environmental adaptability: The module can be equipped with a dust cover (optional) to prevent metal debris from the processing workshop from entering the interior and affecting its lifespan. The operating speed is adjustable (0.1-0.5m / s) to avoid vibration of the housing caused by rapid lifting and lowering.

[0034] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0035] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0036] 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.

Claims

1. A fuel pump housing machining fixture, comprising a base plate (1) and a support platform (2), wherein a control module (12) is fixedly mounted on the upper end of the support platform (2), and a control panel is provided on the control module (12), characterized in that: The support platform (2) is located above the base plate (1). A circular plate (3) is rotatably mounted on the support platform (2) via a first bearing. Two support frames (4) are symmetrically mounted on the upper end of the circular plate (3). A propulsion assembly (5) is fixedly mounted on the top of the support frame (4). A drive rod that passes through the support frame (4) is provided at the output end of the propulsion assembly (5). A detachable positioning plate (6) is provided at the end of the drive rod away from the support frame (4). A clamping groove is provided on the inner side of the positioning plate (6). A motor (10) is fixedly installed at the upper end of the support platform (2). The motor (10) is located on one side of the circular plate (3). The output end of the motor (10) is provided with a rotating shaft that passes through the support platform (2). A gear ring (8) is fixedly installed at the lower end of the circular plate (3). A gear (11) is fixedly installed at the lower end of the rotating shaft. The gear (11) meshes with the gear ring (8). Multiple L-shaped support plates (9) are symmetrically arranged on both sides of the support platform (2). The bottom end of the L-shaped support plate (9) is located below the circular plate (3). Multiple balls that contact the lower surface of the circular plate (3) are rolled on the bottom of the L-shaped support plate (9).

2. The fuel pump housing machining fixture according to claim 1, characterized in that: The upper end of the base plate (1) is provided with a drive assembly for moving the carrier platform (2).

3. A fuel pump housing machining fixture according to claim 2, characterized in that: The drive assembly includes a lifting assembly (16) and an annular block (18). The lifting assembly (16) is fixed to the upper end of the base plate (1), and the annular block (18) is fixed to the output end of the lifting assembly (16). The output end of the lifting assembly (16) is provided with a vertical rod connecting the annular block (18). The top of the vertical rod is provided with a positioning plate (6), and the positioning plate (6) is fixed to the lower end of the annular block (18) by screws.

4. A fuel pump housing machining fixture according to claim 3, characterized in that: One end of the drive rod is provided with a positioning plate (6), which is fixed to the outside of the clamping block (7) by screws.

5. A fuel pump housing machining fixture according to claim 3, characterized in that: The support platform (2) is provided with a circular groove, and the circular plate (3) is located inside the circular groove. The outer ring of the first bearing is interference-fitted with the inner wall of the circular groove, and the inner ring of the first bearing is interference-fitted with the outer wall of the circular plate (3). The inner ring of the annular base (17) is inlaid with a second bearing, and the inner ring of the second bearing is interference-fitted with the outer ring of the annular block (18).

6. A fuel pump housing machining fixture according to claim 3, characterized in that: The inner side of the vertical plate (13) is provided with a sliding groove (15), and the two sides of the support platform (2) are provided with sliders (14) that slide in cooperation with the sliding groove (15). The cross section of the sliding groove (15) is T-shaped.

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