Fuel pump assembly fixture

Abstract

The utility model belongs to the technical field of tool parts, and particularly discloses a fuel pump assembly clamp which comprises a clamping base, a wedge block, a stud, a pressing plate, a handle and a support. A wedge-shaped block and a bracket are fixed on the clamping base; the two wedge-shaped blocks are symmetrically fixed to the two ends of the clamping base, and the first stud and the second stud are installed on the wedge-shaped blocks correspondingly. The second stud is sequentially sleeved with a spring, a pressing plate and a handle. One end of the pressing plate is provided with a liner, and the other end of the pressing plate is in contact with the top of the stud I; a sleeve is installed in the center of the support, and an inner spline hole is formed in the center of the sleeve. According to the assembling clamp, the transmission spline shaft of the centrifugal fuel pump is inserted into the spline hole in the support, then the main shaft and the fuel pump shell are sequentially arranged on the support in a sleeved mode, the pressing plates at the two ends are pushed, the handle is screwed, and rapid clamping and fixing are completed; single-person assembly can be realized, and the assembly efficiency and the assembly quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tooling components, and in particular relates to a fuel pump assembly fixture. Background Art

[0002] During the assembly process of a centrifugal fuel pump, after the main shaft passes through the fuel pump housing, components such as the key, impeller, and inducer must be installed on the main shaft. A nut at one end of the main shaft must be tightened and torqued. This assembly process is not easily performed by a single person, and the main shaft is prone to rotation and movement within the fuel pump housing. Therefore, an assembly fixture is required to secure the fuel pump housing and main shaft during assembly. Utility Model Content

[0003] The purpose of the utility model is to provide a fuel pump assembly fixture, which fixes the fuel pump housing and the main shaft during the assembly process of the centrifugal fuel pump, enables single-person assembly, and improves assembly efficiency, convenience and assembly quality.

[0004] The technical solution of the utility model is as follows: a fuel pump assembly fixture, comprising a clamping base, a wedge block, a screw pile, a pressure plate, a handle and a bracket; the wedge block and the bracket are fixed on the clamping base; there are two wedge blocks, which are symmetrically fixed at both ends of the clamping base, and screw piles 1 and 2 are respectively installed on the wedge blocks; a spring, a pressure plate and a handle are sequentially mounted on the screw pile 2; a gasket is installed at one end of the pressure plate, and the other end of the pressure plate is in contact with the top of the screw pile 1; a sleeve is installed in the center of the bracket, and the center of the sleeve is an internal spline hole.

[0005] Furthermore, the bracket is an "I"-shaped rotating body, with an axial end cooperating with the clamping base at the bottom, a countersunk hole at the center of the upper end, a sleeve installed in the countersunk hole, and a waist-shaped groove on the circumference of the upper end surface of the countersunk hole.

[0006] Furthermore, the screw pile is fixed on the wedge block through a nut.

[0007] Furthermore, a gasket is installed on the contact surface between the pressing plate and the handle.

[0008] Furthermore, through holes are provided at the four corners of the clamping base, and screws and nuts can be used to fix it to the desktop.

[0009] The beneficial effects of this utility model are as follows: insert the centrifugal fuel pump drive spline shaft into the spline hole in the bracket, then sequentially install the main shaft and fuel pump housing on the bracket, push the pressure plates at both ends and tighten the handle to complete the quick clamping and fixing. This allows single-person assembly, improving assembly efficiency and quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the structure of the fuel pump assembly fixture of the utility model;

[0011] Figure 2 for Figure 1 Top view of .

[0012] The numbers in the figure are: 1-clamping base, 2-wedge block, 3-nut, 4-screw pile 1, 5-pressure plate, 6-washer, 7-handle, 8-screw pile 2, 9-spring, 10-pad, 11-bracket, 12-sleeve. DETAILED DESCRIPTION

[0013] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. Example

[0014] like Figure 1 As shown, a fuel pump assembly fixture includes a clamping base 1, a wedge block 2, a screw pile, a pressure plate 5, a handle 7 and a bracket 11; the wedge block 2 and the bracket 11 are fixed to the clamping base 1; there are two wedge blocks 2, which are symmetrically fixed at both ends of the clamping base, and the wedge blocks 2 are respectively installed with screw pile 1 4 and screw pile 2 8; the screw pile 2 8 is sequentially fitted with a spring 9, a pressure plate 5 and a handle 7; one end of the pressure plate 5 is equipped with a gasket 10, and the other end of the pressure plate 5 is in contact with the top of the screw pile 1; a sleeve 12 is installed in the center of the bracket 11, and the center of the sleeve 12 is an internal spline hole.

[0015] The clamping base 1 is a rectangular metal plate with wedge blocks 2 symmetrically welded at both ends and an axial hole in the center tightly fitting the mounting bracket 11; through holes are provided at the four corners of the clamping base 1, which can be fixed to the desktop with screws and nuts.

[0016] The wedge block 2 is provided with two threaded holes, which are respectively equipped with a screw pile 4 and a screw pile 8. After being adjusted to a suitable height, they are fixed with nuts 3.

[0017] The spring 9, pressure plate 5, washer 6 and handle 7 are sequentially mounted on the second screw pile 8; one end of the pressure plate 5 is placed on the first screw pile 4, and the other end is provided with a gasket 10.

[0018] The bracket 11 is an I-shaped rotating body, with an axial end that cooperates with the clamping base 1 at the bottom, a countersunk hole at the center of the upper end, a sleeve 12 is installed in the countersunk hole, and a waist-shaped groove is provided on the circumference of the upper end surface.

[0019] Insert the centrifugal fuel pump's drive spline shaft into sleeve 12, install the main shaft onto the drive spline shaft, and then fit the fuel pump housing onto the main shaft. Place the pins on the fuel pump housing flange into the waist-shaped grooves of bracket 11. Push the pressure plates 5 at both ends and tighten the handles 7 so that the gaskets 10 press against the fuel pump housing flanges. This secures the fuel pump housing and main shaft.

[0020] This fixture enables single-person assembly. The handle, pressure plate, and screws form a lever structure that quickly clamps the fuel pump housing. A pad on the pressure plate protects the fuel pump housing from damage. This fuel pump assembly fixture improves assembly efficiency and convenience, resolves the issue of loosely fixed fuel pump housings and spindles during centrifugal fuel pump assembly, and enhances product assembly quality.

Claims

1. A fuel pump assembly fixture, characterized by: It comprises a clamping base (1), a wedge block (2), a screw pile, a pressure plate (5), a handle (7) and a bracket (11); the clamping base (1) is fixed with a wedge block (2) and a bracket (11); there are two wedge blocks, which are symmetrically fixed at both ends of the clamping base, and the wedge block (2) is respectively installed with a screw pile 1 (4) and a screw pile 2 (8); the screw pile 2 (8) is sequentially mounted with a spring (9), a pressure plate (5) and a handle (7); one end of the pressure plate (5) is equipped with a gasket (10), and the other end of the pressure plate (5) is in contact with the top of the screw pile 1; a sleeve (12) is installed at the center of the bracket (11), and the center of the sleeve (12) is an inner spline hole.

2. The fuel pump assembly fixture according to claim 1, characterized in that: The bracket is an "I"-shaped rotating body, with an axial end cooperating with a clamping base provided at the bottom, a countersunk hole provided at the center of the upper end, a sleeve (12) installed in the countersunk hole, and a waist-shaped groove provided on the circumference of the upper end surface of the countersunk hole.

3. The fuel pump assembly fixture according to claim 1, characterized in that: The screw pile is fixed to the wedge block via a nut (3).

4. The fuel pump assembly fixture according to claim 1, characterized in that: A washer (6) is installed on the contact surface between the pressure plate and the handle.

5. The fuel pump assembly fixture according to claim 1, characterized in that: The four corners of the clamping base are provided with through holes.

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