Clamping tool for machining die-casting aluminum pump cover of automobile oil pump

Abstract

The utility model relates to the technical field of die-casting aluminum product machining, in particular to a clamping tool for machining an automobile oil pump die-casting aluminum pump cover, which mainly comprises a base, a distance adjusting screw rod, a movable block, a sliding rail, a sliding block, an anti-skidding clamping unit and a clamping push rod. First-stage adjustment is achieved, the clamping push rod is used for driving the anti-skid clamping unit and the sliding block to slide on the sliding rail, second-stage adjustment is achieved, and the clamping requirements of quasi-circular oil pump covers of different outer diameter specifications are met. The anti-skid clamping unit can adjust the angle between a main adsorption block and side adsorption blocks at the two ends through an inclination adjusting mechanism, a vacuum pump is used for providing negative pressure suction force for the main adsorption block and the side adsorption blocks, an anti-skid pad is used for providing an anti-skid self-adaptive extrusion face, the clamping reliability can be improved through adsorption clamping, and the subsequent polishing machining effect is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of die-cast aluminum product processing technology, and in particular to a clamping fixture for processing die-cast aluminum pump covers for automotive oil pumps. Background Technology

[0002] Die-cast aluminum pump covers, as key components in automotive fuel pumps, offer several significant advantages that have led to their widespread use in modern automotive manufacturing. Here are some of the main advantages: 1) Lightweight Design: Die-cast aluminum has a lower density than traditional metals like steel, significantly reducing the overall weight of the fuel pump. This contributes to improved fuel economy and reduced carbon emissions, aligning with the modern trend towards lightweight vehicles. 2) Excellent Heat Dissipation: Aluminum alloys have excellent thermal conductivity, effectively dissipating the heat generated during pump operation, maintaining stable internal temperatures, extending service life, and improving pump efficiency and reliability. 3) High-Precision Manufacturing: Die-casting processes enable high-precision forming of complex shapes, ensuring a tight fit between the pump cover and other pump components, reducing leakage risks, and improving overall pump performance and sealing. 4) Strong Corrosion Resistance: Aluminum alloys offer good resistance to various chemicals, are not prone to rust or corrosion, and are suitable for operation in harsh environments such as humidity and salt spray, ensuring long-term stable operation of the fuel pump. 5) Enhanced structural strength: Through reasonable die-casting design and alloy selection, the die-cast aluminum pump cover can ensure lightweight while possessing sufficient strength and rigidity to meet the requirements of oil pumps operating under high pressure.

[0003] After die casting, the aluminum pump cover of the automotive oil pump needs to be polished to remove the parting line, burrs and gate residue on the inside of the pump cover in order to improve the smoothness of the inner wall surface. During the polishing process, clamping fixtures are required to hold the pump cover.

[0004] Traditional clamping fixtures used for machining die-cast aluminum pump covers for automotive fuel pumps have shortcomings. They cannot quickly and reliably clamp near-circular pump covers of different outer diameters, affecting the polishing effect. Therefore, it is necessary to optimize and improve the traditional clamping fixtures used for machining die-cast aluminum pump covers for automotive fuel pumps. Utility Model Content

[0005] The purpose of this utility model is to overcome the above-mentioned problems existing in the traditional technology and to provide a clamping tool for processing the die-cast aluminum pump cover of an automotive oil pump.

[0006] To achieve the above-mentioned technical objectives and effects, this utility model is implemented through the following technical solution:

[0007] A clamping fixture for machining die-cast aluminum pump covers for automotive oil pumps includes a base, an adjusting screw, a movable block, a slide rail, a slider, an anti-slip clamping unit, and a clamping push rod. A circular groove is formed at the center of the base. Adjusting screws are symmetrically installed on both sides of the base. A movable block is sleeved on the outer side of the adjusting screw. Slide rails, which are slidably limited on the base, are fixed side-by-side at both ends of the movable block. A slider is slidably limited on the slide rails. An anti-slip clamping unit is installed on the outer side of the slider. A clamping push rod is installed on the movable block to drive the anti-slip clamping unit to move radially along the circular groove.

[0008] The anti-slip clamping unit includes a vacuum pump, a main adsorption block, side adsorption blocks, an anti-slip pad, a first negative pressure suction tube, a second negative pressure suction tube, and a tilting mechanism. The vacuum pump is installed on the upper side of the slider. A side adsorption block is rotatably connected to each side of the main adsorption block. Anti-slip pads are installed on the outer sides of the main adsorption block and the side adsorption blocks, and negative pressure holes are evenly distributed on the anti-slip pads. The negative pressure chamber of the main adsorption block is connected to the first suction end of the vacuum pump through the first negative pressure suction tube, and the negative pressure chamber of the side adsorption block is connected to the second suction end of the vacuum pump through the second negative pressure suction tube. A tilting mechanism is installed between the vacuum pump and the side adsorption blocks.

[0009] Furthermore, in the clamping fixture used for processing the die-cast aluminum pump cover of the aforementioned automotive oil pump, the inner end of the adjusting screw is provided with a positioning rotary head, and the outer end is provided with a rotary handle.

[0010] Furthermore, in the clamping fixture for processing the die-cast aluminum pump cover of the above-mentioned automobile oil pump, the base is provided with positioning grooves at both ends that cooperate with the adjusting screw, and the upper and lower surfaces of the base are respectively provided with sliding grooves on both sides of the circular groove, and the slide rail is restricted to sliding in the sliding groove.

[0011] Furthermore, in the aforementioned clamping fixture for processing the die-cast aluminum pump cover of an automotive oil pump, the movable block is provided with a screw hole that mates with the adjusting screw and a through hole that facilitates the clamping of the push rod through which the rod body passes.

[0012] Furthermore, in the aforementioned clamping fixture for processing the die-cast aluminum pump cover of an automotive oil pump, both the main adsorption block and the side adsorption block are arc-shaped plate seat structures, with the arc corresponding to the main adsorption block being 45 to 60 degrees and the arc corresponding to the side adsorption block being 30 to 45 degrees.

[0013] Furthermore, in the aforementioned clamping fixture for processing the die-cast aluminum pump cover of an automotive oil pump, the length direction of the adjusting screw, the length direction of the slide rail, and the pushing direction of the clamping push rod are parallel to each other.

[0014] Furthermore, in the clamping fixture for processing the die-cast aluminum pump cover of the aforementioned automotive oil pump, the tilt adjustment mechanism includes a tilt adjustment push rod, a first ear seat, and a second ear seat. The first ear seat is installed on the outside of the vacuum pump, the second ear seat is installed on the outside of the side adsorption block, and the tilt adjustment push rod is installed between the first ear seat and the second ear seat.

[0015] Furthermore, in the aforementioned clamping fixture for machining the die-cast aluminum pump cover of an automotive oil pump, the cylinder of the tilt-adjusting push rod is hinged to the first lug, and the movable end of the tilt-adjusting push rod is hinged to the second lug.

[0016] The beneficial effects of this utility model are:

[0017] This utility model has a reasonable structural design, mainly consisting of a base, an adjusting screw, a movable block, a slide rail, a slider, an anti-slip clamping unit, and a clamping push rod. On one hand, the adjusting screw drives the movable block and slide rail to move, achieving primary adjustment. The clamping push rod drives the anti-slip clamping unit and slider to slide on the slide rail, achieving secondary adjustment, thus meeting the clamping requirements of near-circular oil pump covers with different outer diameters. On the other hand, the anti-slip clamping unit consists of a vacuum pump, a main adsorption block, side adsorption blocks, an anti-slip pad, a first negative pressure suction tube, a second negative pressure suction tube, and an adjustment mechanism. The adjustment mechanism can adjust the angle between the main adsorption block and the two side adsorption blocks. The vacuum pump provides negative pressure suction to the main adsorption block and the side adsorption blocks, and the anti-slip pad provides an anti-slip adaptive extrusion surface. Adsorption clamping improves the reliability of clamping and ensures the effect of subsequent polishing processing.

[0018] Of course, any product implementing this utility model does not necessarily need to achieve all of the above advantages at the same time. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only 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 of the base structure in this utility model;

[0022] Figure 3 This is a schematic diagram of the structure of this utility model with the base omitted;

[0023] Figure 4 This is a schematic diagram of the adjustable lead screw and movable block in this utility model;

[0024] Figure 5 This is a structural schematic diagram of the anti-slip clamping unit at one angle in this utility model;

[0025] Figure 6 This is a schematic diagram of the anti-slip clamping unit from another angle in this utility model;

[0026] The components represented by each number in the attached diagram are explained below:

[0027] 1-Base, 101-Circular groove, 102-Positioning rotating groove, 103-Slide groove, 2-Adjustable lead screw, 3-Moving block, 4-Slide rail, 5-Slider, 6-Anti-slip clamping unit, 601-Vacuum pump, 602-Main adsorption block, 603-Side adsorption block, 604-Anti-slip pad, 605-First negative pressure suction tube, 606-Second negative pressure suction tube, 607-Tilting push rod, 608-First ear seat, 609-Second ear seat, 7-Clamping push rod. Detailed Implementation

[0028] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] like Figures 1-6 As shown, this embodiment provides a clamping fixture for machining die-cast aluminum pump covers for automotive oil pumps, including a base 1, an adjusting screw 2, a movable block 3, a slide rail 4, a slider 5, an anti-slip clamping unit 6, and a clamping push rod 7. A circular groove 101 is formed at the center of the base 1. Adjusting screws 2 are symmetrically installed on both sides of the base 1. Movable blocks 3 are sleeved on the outer sides of the adjusting screws 2. Slide rails 4, which are slidably limited on the base 1, are fixed side-by-side at both ends of the movable block 3. Slids 5 are slidably limited on the slide rails 4. An anti-slip clamping unit 6 is installed on the outer side of the slider 5. A clamping push rod 7 is installed on the movable block 3 to drive the anti-slip clamping unit 6 to move radially along the circular groove 101.

[0030] In this embodiment, the anti-slip clamping unit 6 includes a vacuum pump 601, a main adsorption block 602, a side adsorption block 603, an anti-slip pad 604, a first negative pressure suction tube 605, a second negative pressure suction tube 606, and a tilting mechanism. The vacuum pump 601 is installed on the upper side of the slider 5. A side adsorption block 603 is rotatably connected to each side of the main adsorption block 602. Anti-slip pads 604 are installed on the outer side of both the main adsorption block 602 and the side adsorption block 603, and negative pressure holes communicating with the negative pressure chamber inside the adsorption block are evenly distributed on the anti-slip pads 604. The negative pressure chamber of the main adsorption block 602 is connected to the first suction end of the vacuum pump through the first negative pressure suction tube 605, and the negative pressure chamber of the side adsorption block 603 is connected to the second suction end of the vacuum pump 601 through the second negative pressure suction tube 606. A tilting mechanism is installed between the vacuum pump 601 and the side adsorption block 603.

[0031] In this embodiment, the inner end of the adjusting screw 2 is provided with a positioning rotary head, and the outer end is provided with a rotary handle.

[0032] In this embodiment, the base 1 has positioning grooves 102 at both ends that cooperate with the adjusting screw 2. The upper and lower surfaces of the base 1 are symmetrically provided with sliding grooves 103 on both sides of the circular groove 101, and the slide rail 4 is slidably restricted in the sliding grooves 103.

[0033] In this embodiment, the movable block 3 is provided with a screw hole that cooperates with the adjusting screw 2 and a through hole that facilitates the clamping of the push rod 7 through which the rod body passes.

[0034] In this embodiment, both the main adsorption block 602 and the side adsorption block 603 are arc-shaped plate base structures. The arc degree corresponding to the main adsorption block 602 is 45 to 60 degrees, and the arc degree corresponding to the side adsorption block 603 is 30 to 45 degrees.

[0035] In this embodiment, the length direction of the adjusting screw 2, the length direction of the slide rail 4, and the pushing direction of the clamping push rod 7 are parallel to each other.

[0036] In this embodiment, the tilt adjustment mechanism includes a tilt adjustment push rod 607, a first ear seat 608, and a second ear seat 609. The first ear seat 608 is installed on the outside of the vacuum pump 601, the second ear seat 609 is installed on the outside of the side adsorption block 603, and the tilt adjustment push rod 607 is installed between the first ear seat 608 and the second ear seat 609.

[0037] In this embodiment, the cylinder of the tilt adjustment push rod 607 is hinged to the first ear seat 608, and the movable end of the tilt adjustment push rod 607 is hinged to the second ear seat 609.

[0038] A specific application of this embodiment is as follows: This tooling mainly consists of a base 1, an adjusting screw 2, a movable block 3, a slide rail 4, a slider 5, an anti-slip clamping unit 6, and a clamping push rod 7. On the one hand, the adjusting screw 2 drives the movable block 3 and the slide rail 4 to move, achieving primary adjustment; the clamping push rod 7 drives the anti-slip clamping unit 6 and the slider 5 to slide on the slide rail 4, achieving secondary adjustment, thus meeting the clamping requirements of near-circular oil pump covers with different outer diameters. On the other hand, the anti-slip clamping unit 6 is powered by a vacuum pump 6. 01. The device consists of a main adsorption block 602, side adsorption blocks 603, anti-slip pad 604, a first negative pressure suction tube 605, a second negative pressure suction tube 606, and an adjustment mechanism. The angle between the main adsorption block 602 and the two side adsorption blocks 603 can be adjusted using the adjustment mechanism. The vacuum pump 601 provides negative pressure suction to the main adsorption block 602 and the side adsorption blocks 603. The anti-slip pad 604 provides an anti-slip adaptive extrusion surface. The adsorption clamping can improve the reliability of the clamping and ensure the effect of subsequent polishing processing.

[0039] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to specific implementation methods. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A clamping fixture for machining a die-cast aluminum pump cover for an automotive oil pump, characterized in that, The base is provided with a circular groove in the center, two distance-adjusting lead screws are symmetrically installed on both sides of the base, an activity block is sleeved outside the distance-adjusting lead screw, two slide rails are fixed on both ends of the activity block in parallel and are limited to slide on the base, a slide block is limited to slide on the slide rail, an anti-skid clamping unit is installed on the outside of the slide block, and a clamping push rod is installed on the activity block and used to drive the anti-skid clamping unit to displace radially along the circular groove. The anti-skid clamping unit comprises a vacuum pump, a main suction block, a side suction block, an anti-skid pad, a first negative pressure suction pipe, a second negative pressure suction pipe and a tilt adjusting mechanism, the vacuum pump is installed on the upper side of the slide block, the main suction block is rotatably connected with a side suction block on each side, the main suction block and the side suction block are each provided with an anti-skid pad on the outside, the anti-skid pads are uniformly provided with negative pressure holes, the negative pressure cavity of the main suction block is connected with the first suction end of the vacuum pump through the first negative pressure suction pipe, the negative pressure cavity of the side suction block is connected with the second suction end of the vacuum pump through the second negative pressure suction pipe, and the tilt adjusting mechanism is installed between the vacuum pump and the side suction block.

2. The clamping tool for processing the pump cover of the automotive oil pump made of die-cast aluminum according to claim 1, characterized in that, The inner end of the distance-adjusting lead screw is provided with a positioning rotating head, and the outer end is provided with a rotating knob.

3. The clamping tool for processing the pump cover of the automotive oil pump made of die-cast aluminum according to claim 2, characterized in that, The base is provided with a positioning rotating groove at both ends and matched with the distance-adjusting lead screw, and the upper and lower surfaces of the base are each provided with a slide groove symmetrically on both sides of the circular groove.

4. The clamping tool for processing the pump cover of the automotive oil pump made of die-cast aluminum according to claim 3, characterized in that, The activity block is provided with a lead screw hole matched with the distance-adjusting lead screw and a perforation through which the middle rod of the clamping push rod passes.

5. The clamping tool for processing the pump cover of the automotive oil pump made of die-cast aluminum according to claim 4, characterized in that, The main suction block and the side suction block are both arc-shaped plate structures, the corresponding arc of the main suction block is 45-60 degrees, and the corresponding arc of the side suction block is 30-45 degrees.

6. The clamping tool for processing the pump cover of the automotive oil pump made of die-cast aluminum according to claim 5, characterized in that, The length direction of the distance-adjusting lead screw, the length direction of the slide rail and the advancing direction of the clamping push rod are parallel to each other.

7. The clamping tool for processing the pump cover of the automotive oil pump made of die-cast aluminum according to claim 6, characterized in that, The tilt adjusting mechanism comprises a tilt adjusting push rod, a first ear seat and a second ear seat, the first ear seat is installed on the outside of the vacuum pump, the second ear seat is installed on the outside of the side suction block, and the tilt adjusting push rod is installed between the first ear seat and the second ear seat.

8. The clamping tool for processing the pump cover of the automotive oil pump made of die-cast aluminum according to claim 7, characterized in that, The cylinder body of the tilt adjusting push rod is hinged to the first ear seat, and the movable end of the tilt adjusting push rod is hinged to the second ear seat.

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