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Method for assembling front shell component and pump body of diesel engine fuel oil injection pump in connected mode

A fuel injection pump and assembly method technology, applied in metal processing, metal processing equipment, manufacturing tools, etc., can solve the problems of oil leakage, leakage tightening, uneven tightening force of front shell parts, etc., to achieve uniform force and prevent leakage Effect

Inactive Publication Date: 2014-03-26
SHANGHAI DENSO FUEL INJECTION
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  • Abstract
  • Description
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Problems solved by technology

The tightening sequence of the bolts in each installation depends on the personal habits of the operator, which is prone to missing tightening, and when the 4 bolts on one side are tightened first and then the 4 bolts on the other side, the tightening force on both sides of the front shell will be insufficient. Uniformity, poor sealing of the joint surface with the pump body, resulting in oil leakage from the joint surface of the front housing part and the pump body

Method used

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  • Method for assembling front shell component and pump body of diesel engine fuel oil injection pump in connected mode

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

[0011] Depend on figure 1 Visible: the present invention is realized through the following steps:

[0012] Pre-install the pump body, front shell parts, and 8 bolts to the specified position of the equipment;

[0013] Press the start switch, the cylinder pushes the clamp to clamp the workpiece, and the PLC system controls the X-Y two servo motors to automatically follow the third bolt 3, the sixth bolt 6, the fifth bolt 5, the fourth bolt 4, the first bolt 1, and the eighth bolt. The bolt 8, the seventh bolt 7, the second bolt 2 and the third bolt 3 are tightened and moved in sequence.

[0014] The present invention avoids oil leakage caused by uneven connection force of the front shell parts by specifying the tightening sequence of the eight bolts of the front shell parts, and the bolt tightening machine is a product of the prior art. Ensure...

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Abstract

The invention relates to a method for assembling a front shell component and a pump body of a diesel engine fuel oil injection pump in a connected mode. The method includes the following steps: pre-assembling the pump body, the front shell component and eight bolts at the designated positions of a device, pressing a starting switch to enable an air cylinder to push a clamping jaw to clamp a workpiece, and controlling an X servo motor and a Y servo motor through a PLC system to carry out screwing and running automatically according to the sequence of the third bolt, the sixth bolt, the fifth bolt, the fourth bolt, the first bolt, the eighth bolt, the seventh bolt, the second bolt and the third bolt. The method has the advantages that due to the fact that the screwing sequence is specified, it is guaranteed that stress is even when the front shell component is connected, gaps are avoided, and leakage is avoided.

Description

technical field [0001] The invention relates to a fuel injection pump for a diesel engine, in particular to a method for connecting and assembling a front casing part and a pump body of the fuel injection pump for a diesel engine. Background technique [0002] Depend on figure 1 It can be seen that the connection between the front casing part and the pump body is realized by tightening 8 M8 bolts (1-8) distributed on the front casing part. [0003] In the assembly process, only the tightening torque is specified, and there is no requirement for the tightening sequence of the 8 bolts. The tightening sequence of the bolts during each installation depends on the personal habits of the operator, which is prone to missing tightening, and when the 4 bolts on one side are tightened first and then the 4 bolts on the other side, the tightening force on both sides of the front shell will be insufficient. Uniformity, and poor sealing of the joint surface with the pump body, resulting...

Claims

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Application Information

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IPC IPC(8): B23P19/06
CPCB23P19/06
Inventor 赵鸣
Owner SHANGHAI DENSO FUEL INJECTION
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