Equivalent scrubbing machine for fuel injection pump body cavity

Abstract

The invention relates to an equivalent scrubbing machine for inner chambers of pump bodies of fuel oil injection pumps. The equivalent scrubbing machine comprises a workpiece locating device, scrubbing devices and a controller, wherein the scrubbing devices are symmetrically arranged at the two sides of the workpiece locating device. The central axis of the workpiece locating device serves as thesymmetry axis of the two scrubbing devices. Each scrubbing device comprises cam shaft hole scrubbing mechanisms and plunger hole scrubbing mechanisms, wherein the cam shaft hole scrubbing mechanisms and the plunger hole scrubbing mechanisms are arranged in the axial direction of the central axis of the workpiece locating device. The workpiece locating device comprises tracks, a sliding seat, a rotating column, a containing plate and a locating device. A linear driver is arranged at one ends of the tracks, wherein the linear driver drives the sliding seat to move along the tracks. The sliding seat is provided with a reversing driver, wherein the reversing driver can drive the rotating column to rotate. The controller controls actions of a first driver, a second driver, the linear driver andthe reversing driver so that scrubbing of the pump bodies can be completed. Equivalent scrubbing is conducted on cam shaft holes and plunger holes through the scrubbing devices, and it is guaranteedthat all the inner chambers of the pump bodies are the same in deburring scrubbing intensity, speed and angle; and the quality problem that the finish degree of the inner chambers of the pump bodies is lowered is avoided.

Description

Technical field: [0001] The invention belongs to the field of fuel injection pump manufacturing, and in particular relates to an equal-volume scrubbing machine for the body cavity of the fuel injection pump. Background technique: [0002] The camshaft hole and plunger hole on the pump body of the fuel injection pump are usually processed by fine boring or fine reaming. ) produces burrs, and these burrs will bring many adverse effects in the normal operation of the fuel injection pump body, such as the plunger movement is not smooth, the burr pollutes the oil body, etc. Therefore, when manufacturing the fuel injection pump body, it is necessary It is rarely necessary to remove the burrs in the inner cavity of the pump. The traditional deburring method is manual. Because the manual method is too subjective, it is impossible to achieve consistent brushing of each hole, and it is difficult to balance the force control. The quality of each pump body is deviated due to deburring,...

AI Technical Summary

Problems solved by technology

[0002] The camshaft hole and plunger hole on the pump body of the fuel injection pump are usually processed by fine boring or fine reaming. ) produces burrs, and these burrs will bring many adverse effects in the normal operation of the fuel injection pump body, such as the plunger movement is not smooth, the burr pollutes the oil body, etc. Therefore, when manufacturing the fuel injection pump body, it is necessary It is rarely necessary to remove the burrs in the inner cavity of the pump. The traditional deburring method is manual. Because the manual method is too subjective, it is impossible to achieve consistent brushing of each hole, and it is difficult to balance the force control. The quality of each pump body is deviated due to deburring, and even the quality of different plunger holes on the same pump body has a large deviation, or the phenomenon of scratching the hole wall. Therefore, manual deburring is difficult to control the quality and easily damages the cavity. Technical issues such as wall finish

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