Clamp for turning oil inlet and oil outlet of steering pump

Abstract

The clamp for turning the oil inlet and the oil outlet of the steering pump comprises an L-shaped bent plate, a pump body oil port workpiece is arranged above the bent plate, a fastening shaft is arranged in a transverse plate hole of the bent plate, the upper end of the fastening shaft penetrates through a center hole of the pump body oil port workpiece to be connected with an opening pad, a fastening nut is arranged at the uppermost end of the fastening shaft, and the pump body oil port workpiece is connected with the opening pad through the fastening nut. An adjusting pad is arranged between a transverse plate of the bent plate and the pump body oil port workpiece, a positioning pin is arranged on one side of the pump body oil port workpiece, the center of the positioning pin and the center of the pump body oil port workpiece are located on the same longitudinal center line, a shaft hole matched with a lathe spindle is formed in a vertical plate of the bent plate, a lining is arranged in the shaft hole, and the pump body oil port workpiece is arranged in the lining. And the shaft hole and an oil inlet / outlet on the pump body oil port workpiece are positioned on the same axial center line. The inner cavity of the pump body is pre-positioned through the clamp, the radial size of the oil port is adjusted through the thickness of the adjusting pad, the purpose of aligning the appearance of the oil port is achieved, the structure is simple, convenience and practicability are achieved, and working efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile part production equipment, in particular to a fixture for turning steering pump inlet and outlet ports. BACKGROUND

[0002] The inlet and outlet ports of the pump body of the steering assist pump need to be aligned in the machining process due to casting errors, otherwise the concentricity of the casting profile and the threaded hole will be visible to the naked eye. In the prior art, the alignment is mostly achieved by relying on casting precision or measuring the size before machining, and then selecting and grouping according to the measured size, but there are the following problems: high casting scrap rate, low machining efficiency, and thus increased cost. SUMMARY

[0003] To solve the above problems, the utility model provides a fixture for turning steering pump inlet and outlet ports.

[0004] The technical scheme of the utility model is implemented as follows: a fixture for turning steering pump inlet and outlet ports, comprising an L-shaped bent plate, a pump body oil port workpiece is arranged above the bent plate, a fastening shaft is arranged in the hole of the horizontal plate of the bent plate, the upper end of the fastening shaft penetrates through the center hole of the pump body oil port workpiece and is connected with an open pad, a fastening nut is arranged at the uppermost end of the fastening shaft, an adjusting pad is arranged between the horizontal plate of the bent plate and the pump body oil port workpiece, a positioning pin is arranged on one side of the pump body oil port workpiece, the positioning pin and the center of the pump body oil port workpiece are located on the same longitudinal center line, an axial hole is arranged on the vertical plate of the bent plate and matched with the main shaft of the lathe, a bushing is arranged in the axial hole, the axial hole and the inlet and outlet ports of the pump body oil port workpiece are located on the same axial center line.

[0005] Preferably, the thickness and size of the adjusting pad are adjustable.

[0006] The utility model has the advantages that the utility model realizes the purpose of aligning the oil port profile by prepositioning the pump body cavity through the fixture, adjusting the radial size of the oil port through the thickness of the adjusting pad, and has the advantages of simple structure, convenience and practicality, reduced labor intensity of workers, and greatly improved work efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0007] Fig. 1 It is a sectional structure schematic view of the utility model;

[0008] Fig. 2 It is a top view of the utility model.

[0009] Part description: 1, fastening nut, 2, open pad, 3, fastening shaft, 4, pump body oil port workpiece, 6, adjusting pad, 7, positioning pin, 8, bushing, 9, axial hole. DETAILED DESCRIPTION

[0010] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0011] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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.

[0012] See attached document Figs. 1-2 A fixture for machining the inlet and outlet ports of a steering pump includes an L-shaped bent plate 6. A pump body port workpiece 4 is disposed above the bent plate 6. A fastening shaft 3 is disposed in the horizontal hole of the bent plate 6. The upper end of the fastening shaft 3 passes through the center hole of the pump body port workpiece 4 and is connected to the opening gasket 2. A fastening nut 1 is disposed at the uppermost end of the fastening shaft 3. An adjusting shim 5 is disposed between the horizontal plate of the bent plate 6 and the pump body port workpiece 4. A positioning pin 7 is disposed on one side of the pump body port workpiece 4. The positioning pin 7 and the center of the pump body port workpiece 4 are located on the same longitudinal center line. The circumferential direction is positioned by the positioning pin 7. A shaft hole 9 is disposed on the vertical plate of the bent plate 6 to cooperate with the lathe spindle. A bushing 8 is disposed in the shaft hole 9. The shaft hole 9 and the inlet and outlet ports on the pump body port workpiece 4 are located on the same axial center line.

[0013] The fixture is fitted and fixed to the lathe spindle via bushing 8. The pump body oil port workpiece 4 is fastened by tightening nut 1 and open washer 2. The lathe is started to process the oil port thread. If the oil port position is not visually correct, the adjusting shim 5 can be replaced. The alignment purpose can be achieved by adjusting the thickness of the adjusting shim 5.

[0014] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope of the present utility model based on the technical solution and the inventive concept of the present utility model are covered within the protection scope of the present utility model.

Claims

1. A fixture for machining the inlet and outlet of a steering pump, comprising an L-shaped bent plate (6), characterized in that... The upper part of the bent plate (6) is provided with a pump body oil port workpiece (4). A fastening shaft (3) is provided in the horizontal plate hole of the bent plate (6). The upper end of the fastening shaft (3) passes through the center hole of the pump body oil port workpiece (4) and is connected to the opening gasket (2). A fastening nut (1) is provided at the uppermost end of the fastening shaft (3). An adjusting shim (5) is provided between the horizontal plate of the bent plate (6) and the pump body oil port workpiece (4). A positioning pin (7) is provided on one side of the pump body oil port workpiece (4). The positioning pin (7) and the center of the pump body oil port workpiece (4) are located on the same longitudinal center line. A shaft hole (9) that cooperates with the lathe spindle is provided on the vertical plate of the bent plate (6). A bushing (8) is provided in the shaft hole (9). The shaft hole (9) and the oil inlet and outlet on the pump body oil port workpiece (4) are located on the same axial center line.

2. The fixture for machining the inlet and outlet of a steering pump as described in claim 1, characterized in that... The thickness and size of the adjustment pad (5) are adjustable.

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