Water pump press-fitting water seal upper die

Abstract

The utility model relates to a water pump press-fitting water seal upper die which comprises a pressing rod, a guide rod and a spring, one end of the pressing rod is a press-fitting end, the other end of the pressing rod is a fixed end, a bolt hole is formed in the fixed end, a guide rod groove hole and a spring groove hole are formed in the pressing rod, the guide rod groove hole and the spring groove hole are communicated and penetrate through the pressing rod, and the spring is fixedly arranged in the spring groove hole. The guide rod is arranged in the guide rod groove hole and can move along the guide rod groove hole, and one end of the spring is connected with one end of the guide rod. The water seal is placed at the press-fitting end of the pressing rod, the shaft connecting bearing on the pump body is pressed downwards towards the guide rod, at the moment, the shaft connecting bearing downwards presses the guide rod to move into the pressing rod along a straight line, the pump body makes contact with the press-fitting end of the pressing rod in the pressing process and extrudes the pump body, and at the moment, the water seal at the press-fitting end of the pressing rod is pressed on the pump body to complete press-fitting of the water seal. Through the linear compression mode of the shaft connecting bearing and the guide rod, the water seal can be efficiently installed on the pump body, and the installation deviation of the water seal is prevented.

Description

Technical Field

[0001] The utility model relates to a water seal press-fitting, in particular to an upper die for press-fitting a water seal of a water pump. Background Art

[0002] The original method of press-fitting the water seal is to directly place the water seal on the small end of the shaft-connected bearing manually. The water seal is fixed only by the frictional force between the circular arc of the small hole of the transmission seat and the chamfer at the small end of the shaft-connected bearing. If the operator makes a mistake or the equipment vibrates during its own operation, the water seal may be deflected, and finally the water seal is pressed obliquely or the water seal falls off directly for empty pressing, which greatly affects the product qualification rate and work efficiency. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide an upper die for press-fitting a water seal of a water pump, which is used for the process of press-fitting the water seal of the water pump.

[0004] The technical solution for solving the above technical problem is: an upper die for press-fitting a water seal of a water pump, characterized in that: it includes a pressure rod, a guide rod and a spring. One end of the pressure rod is a press-fitting end, and the other end of the pressure rod is a fixed end. A bolt hole is provided at the fixed end. A guide rod slot hole and a spring slot hole are provided on the pressure rod. The guide rod slot hole and the spring slot hole are communicated with each other and penetrate through the pressure rod. The spring is fixedly arranged in the spring slot hole, the guide rod is arranged in the guide rod slot hole, and the guide rod can move along the guide rod slot hole. One end of the spring is connected to one end of the guide rod.

[0005] A further technical solution of the utility model is: when the spring is in a natural state, the other end of the guide rod is located outside the press-fitting end of the pressure rod. A ball plunger is provided at the upper end of the guide rod.

[0006] One end of the spring is fixedly arranged at the fixed end of the pressure rod through a gasket and a circlip.

[0007] Due to adopting the above technical solution, the upper die for press-fitting a water seal of the utility model has the following beneficial effects:

[0008] By placing the water seal at the press-fitting end of the pressure rod and pressing the shaft-connected bearing on the pump body against the guide rod, at this time, the shaft-connected bearing presses the guide rod to move linearly into the pressure rod. During the pressing process, the pump body contacts and squeezes with the press-fitting end of the pressure rod. At this time, the water seal on the press-fitting end of the pressure rod is pressed onto the pump body to complete the press-fitting of the water seal. Through the linear compression method of the shaft-connected bearing and the guide rod, the water seal can be efficiently installed on the pump body, and the deviation of the water seal installation can be effectively prevented. After the press-fitting is completed, the guide rod is pushed out again by the spring inside the pressure rod, and the water seal can be loaded again to continue the next press-fitting. When in use, the water seal is loaded at the press-fitting end of the pressure rod, and the guide rod end protruding from the pressure rod can fix the water seal so that it will not fall off, improving the press-fitting efficiency.

[0009] Next, in combination with the accompanying drawings of the specification and specific embodiments, the technical features of the upper die for press-fitting a water seal of the utility model will be further described. Description of the Drawings

[0010] Figure 1 : Schematic structural diagram of the upper die for pressing the water seal of the water pump.

[0011] Figure 2 : Schematic diagram of the use state of the upper die for pressing the water seal of the water pump.

[0012] In the above-mentioned drawings, the descriptions of each label are as follows:

[0013] 1 - Pressure rod, 2 - Guide rod, 3 - Spring, 4 - Gasket, 5 - Snap ring, 6 - Ball head plunger, 7 - Bolt hole, 8 - Pump body, 9 - Shaft-connected bearing, 10 - Water seal. Detailed Implementation Manner

[0014] An upper die for pressing the water seal of a water pump includes a pressure rod, a guide rod and a spring. One end of the pressure rod is the pressing end, and the other end of the pressure rod is the fixed end. A bolt hole is provided at the fixed end. Through the cooperation of the bolt hole and the bolt, the pressure rod can be installed on the equipment or fixed on the workbench. A guide rod slot hole and a spring slot hole are provided on the pressure rod. The guide rod slot hole and the spring slot hole are connected and penetrate through the pressure rod, that is, the pressure rod is a hollow structure. The through holes of this hollow structure are respectively the guide rod slot hole and the spring slot hole. The guide rod and the spring are respectively arranged in the pressure rod, and the guide rod and the spring are connected. Under the action of an external force, the guide rod can compress the spring and move into the pressure rod. The spring is fixedly arranged in the spring slot hole, and the guide rod is arranged in the guide rod slot hole. The guide rod can move along the guide rod slot hole. One end of the spring is connected to one end of the guide rod, and the other end of the spring is fixedly arranged at the fixed end of the pressure rod through a gasket and a snap ring. The snap ring holds the gasket, and the gasket holds the spring. When the spring is in the natural state, the other end of the guide rod is located outside the pressing end of the pressure rod. When the guide rod is pressed down, the guide rod presses the spring and moves downward, that is, the guide rod compresses the spring and moves towards the spring slot hole direction. At this time, the spring is in a compressed state. A ball head plunger is provided at the upper end of the guide rod. Through the buffering of the ball head plunger, it can somewhat avoid the shaft-connected bearing from being damaged when it contacts the guide rod.

[0015] During use, the water seal is placed at the pressing end of the pressing rod. The shaft-connected bearing on the pump body presses down against the guide rod. At this time, the shaft-connected bearing presses down the guide rod and moves it into the pressing rod. During the pressing process, the pump body contacts and squeezes the pressing end of the pressing rod. At this time, the water seal on the pressing end of the pressing rod is pressed onto the pump body to complete the pressing of the water seal. When pressing, the guide rod retracts into the pressing rod. After the pressing is completed, the pump body is removed. The guide rod is extended again through the internal spring of the pressing rod, and the next pressing can be continued by loading the water seal again. When in use, the water seal is loaded at the pressing end of the pressing rod. The guide rod protruding from the pressing rod can fix the water seal and prevent it from falling off, improving the pressing efficiency. Through the linear compression method of the shaft-connected bearing and the guide rod, the water seal can be efficiently installed on the pump body, effectively preventing the deviation of the water seal installation. When the shaft-connected bearing and the guide rod are compressed into the pressing rod, if the small end of the shaft-connected bearing extends straight into the pressing rod hole without touching the inner wall of the pressing rod, it means that the pump body with the shaft-connected bearing pressed is qualified and the water seal can be installed continuously; if the small end of the shaft-connected bearing extends into the pressing rod hole and touches the inner wall of the pressing rod and cannot be pressed down straight, it means that the pump body with the shaft-connected bearing pressed is unqualified, and the shaft-connected bearing on the pump body is in an offset position and needs to be adjusted again.

[0016] The pressing rod needs to be loaded on the equipment. Through the four bolt holes provided at the fixed end, it is aligned with the four corresponding threaded holes of the equipment for installation and fixation. Just tighten the standard bolts with the standard bolts and the corresponding hexagon wrenches. The water pump with the shaft-connected bearing pressed in the previous process can be set on the lower die. The upper die for pressing the water seal of the water pump is aligned with the lower die for pressing. When the water seal is not loaded, it can be manually checked first, that is, the water pump and the guide rod are pressed in the manual mode. After the guide rod presses the small end of the shaft-connected bearing of the water pump, it retracts into the guide rod. During the whole process, it shall not contact any position other than the small end of the shaft-connected bearing of the water pump. If it contacts, it means that the position is incorrect or there is an offset. At this time, the upper die and the lower die can be adjusted to be aligned and centered before pressing. It can effectively prevent deviation during pressing and damage the pump body or the shaft-connected bearing.

[0017] Maintenance: Keep the tooling clean and apply anti-rust oil when not in use for a long time; clean the pollutants in each gap after each day's use or when replacing other pressing rods; after the tooling has been used for a period of time, the circlip and gasket need to be removed, and the inside of the pressing rod and the spring need to be cleaned. If the spring compression amount is too low, the spring needs to be replaced.

Claims

1. A water pump press-fit water seal upper die, characterized in that: It includes a pressure rod, a guide rod and a spring. One end of the pressure rod is a press-fit end, and the other end of the pressure rod is a fixed end. A bolt hole is provided at the fixed end. The pressure rod is provided with a guide rod slot hole and a spring slot hole. The guide rod slot hole and the spring slot hole are interconnected and pass through the pressure rod. The spring is fixedly arranged in the spring slot hole, and the guide rod is arranged in the guide rod slot hole. The guide rod can move along the guide rod slot hole, and one end of the spring is connected to one end of the guide rod.

2. The water pump press-fit water seal upper die according to claim 1, characterized in that: A ball plunger is provided at the upper end of the guide rod.

3. The water pump press-fit water seal upper die according to claim 1, characterized in that: When the spring is in a natural state, the other end of the guide rod is located outside the press-fit end of the pressure rod.

4. The water pump press-fit water seal upper die according to claim 1, characterized in that: One end of the spring is fixedly arranged at the fixed end of the pressure rod through a gasket and a clamping spring.

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