Press fitting device for multi-angle inclined pipe joint of water pump

Abstract

The utility model discloses a water pump multi-angle inclined pipe joint press-fitting device which comprises a base, a guide rail bottom plate is arranged on the base, and a guide rail and a sliding block are arranged on the guide rail bottom plate. The movable bottom plate is fixed to the sliding block, an inner cavity profiling block, a shell positioning pin and a shell are fixed to the movable bottom plate, the center of the shell is positioned through an inner cavity square block, the angle direction of the shell is positioned through the shell positioning pin, and the shell is fixed to the movable bottom plate in a bolted mode; the rectangular wrapping piece is fixed on the base, a profiling die is arranged in the rectangular wrapping piece, the profiling die comprises a first profiling die and a second profiling die, and the inclined pipe joint is arranged in the profiling die and corresponds to a hole to be pressed in of the shell; the upper end of the pressing head assembly is connected with the pressing machine driving end, and the lower end is connected with the movable bottom plate. The water pipe connector is fixed on the lower portion, so that the press-fitting process is more stable, press-fitting stress is even, installation is simple, manual auxiliary centering is not needed in the pressing process, press-fitting safety is guaranteed, and production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical processing technical field especially is related to a water pump multi-angle inclined pipe joint press fitting device. BACKGROUND

[0002] A certain pressure is generated to the matching hole in the assembly process, so that the purpose of close fit is realized. This assembly method can improve the precision and stability of assembly, prevent loosening and vibration. At present, the interference press fitting is mostly commonly used by extrusion method, which deforms the metal pipe (or shell) in the assembly process through lubricant or metal softening agent, so that the matching purpose is realized.

[0003] In the prior art, screws or air cylinders are often used to press the pipe joint and the shell respectively, and the two are pressed by using air or hydraulic power as the power, but this method can only be used for straight pipe joints or bent pipe joints with the shell parallel. When the angle between the bent pipe joint and the shell is required, the above method cannot be used because the bent pipe cannot be completely enveloped, resulting in uneven stress or the bent pipe cannot be taken out of the pressing cavity after the press fitting is completed. At the same time, this method can also cause pressure injury to the outer surface of the product, which is fatal to the paint-sprayed parts with appearance requirements.

[0004] At present, in the prior art, the shell is fixed, the multi-angle inclined pipe joint is enveloped by symmetrical profiling dies, and there is a rectangular covering piece outside the profiling die, which protects the profiling die from being dispersed. After the bent pipe is enveloped by the profiling die, it is put into the rectangular covering piece. At this time, the shell is below, the inclined pipe joint is manually righted, and then the press fitting is started. In this process, the angle adjustment accuracy is low, the bent pipe is easily inclined when being press fitted, which causes the risk of water leakage of the pipe joint. Not only is the manual adjustment complicated and labor-intensive, but also the press fitting efficiency is extremely low. SUMMARY

[0005] The utility model discloses a kind of water pump multi-angle inclined pipe joint press fitting devices to overcome the deficiencies of background art.

[0006] Technical scheme: the water pump multi-angle inclined pipe joint press fitting device disclosed by the utility model, comprising:

[0007] Base, the base is equipped with vertical fixed guide rail bottom plate, the guide rail bottom plate is equipped with guide rail, the guide rail is equipped with vertically sliding sliding block;

[0008] Movable bottom plate, the movable bottom plate is vertically arranged, and is fixed with the sliding block, the movable bottom plate is fixed with inner cavity profiling block and shell positioning pin, and is also equipped with shell, the shell is positioned center by inner cavity profiling block, and is positioned angular direction by shell positioning pin, and waits to be pressed into orifice downward, the shell is bolted and fixed on the movable bottom plate;

[0009] The rectangular cover is fixed on the base with the opening upward, and a profiling die is arranged in the rectangular cover, the profiling die comprises a first profiling die and a second profiling die which are divided in half in the radial direction, and the inclined pipe joint is arranged in the profiling die and corresponds to the hole to be pressed in the shell.

[0010] The pressure head assembly is connected with the driving end of the press machine at the upper end and connected with the movable bottom plate at the lower end, and drives the shell to press the inclined pipe joint.

[0011] Further, the inner cavity profiling block is fixed on the movable bottom plate through a profiling positioning pin.

[0012] Further, after the inclined pipe joint is arranged between the first profiling die and the second profiling die, the inclined pipe joint is connected through the profiling die positioning pin, so that the inclined pipe joint and the profiling die form an integral whole arranged in the rectangular cover.

[0013] Further, the rectangular cover is clamped on the profiling die from the outside to the inside by the ball head plunger, so that the position of the profiling die is stable during the pressing process, and the profiling die can be pulled out integrally after the pressing process is completed.

[0014] Further, the pressure head assembly comprises a pressure head sleeve, a movable pressure rod and a movable pressure head, the pressure head sleeve is fixed with the driving end of the press machine, an axial strip-shaped through hole is formed in the outer wall of the pressure head sleeve, the movable pressure rod is arranged in the pressure head sleeve, a radial limiting rod is arranged on the outer wall of the movable pressure rod, the limiting rod moves in the strip-shaped through hole along with the up-down movement of the pressure head sleeve, and the movable pressure head is fixed at the bottom end of the movable pressure rod.

[0015] Further, the bottom of the movable pressure head is fixed with the top of the movable bottom plate through the upper pressing plate, and the movable pressure head is driven to move up and down.

[0016] Advantages: compared with the prior art, the water pipe joint is fixed in the lower part, which can make the pressing process more stable, the pressing force is uniform, the installation is simple, the centering of the pressing process does not need manual assistance, the safety of the pressing is guaranteed, and the production efficiency is improved; meanwhile, the key problem that the profiling die cannot be taken out from the mold cavity after the pressing is completed is solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is an overall assembly view of the utility model;

[0018] Figure 2 It is an overall sectional view of the utility model;

[0019] Figure 3 It is a shell structure schematic view of the utility model;

[0020] Figure 4 It is a profiling die structure schematic view of the utility model. DETAILED DESCRIPTION

[0021] As shown in the water pump multi-angle inclined pipe joint press-fitting device, comprising: Figures 1-4 The base 1 is provided with a vertically fixed guide rail bottom plate 2, the guide rail bottom plate 2 is provided with a guide rail 3, and the guide rail 3 is provided with a vertically sliding sliding block 4;

[0022] The movable bottom plate 5 is vertically arranged and fixed with the sliding block 4, the movable bottom plate 5 is fixed with an inner cavity profiling block 6 and a shell positioning pin 7, and is further provided with a shell 8, the shell 8 is positioned at the center through the inner cavity profiling block 6 and is positioned in the angular direction through the shell positioning pin 7, the to-be-pressed hole is downward, and the shell 8 is bolted and fixed on the movable bottom plate 5;

[0023] The rectangular cladding 9 is fixed on the base 1 with the opening upward, the rectangular cladding 9 is provided with a profiling die 10, the profiling die 10 comprises a first profiling die 10-1 and a second profiling die 10-2 which are divided in half in the radial direction, and the inclined pipe joint 11 is arranged in the profiling die 10 and corresponds to the to-be-pressed hole of the shell 8;

[0024] The pressure head assembly is connected to the driving end of the press machine at the upper end and is connected to the movable bottom plate 5 at the lower end, so as to drive the shell 8 to press the inclined pipe joint 11.

[0025] The inner cavity profiling block 6 is fixed on the movable bottom plate 5 through a profiling positioning pin 12.

[0026] After the inclined pipe joint 11 is arranged between the first profiling die 10-1 and the second profiling die 10-2, the profiling die positioning pin 13 is connected, so that the inclined pipe joint 11 and the profiling die 10 form an integral whole arranged in the rectangular cladding 9.

[0027] The rectangular cladding 9 is clamped to the profiling die 10 from the outside to the inside through the ball head plunger 14, so that the profiling die 10 is stable in position during the press-fitting process and can be pulled out integrally after the press-fitting is completed.

[0028] The pressure head assembly comprises a pressure head sleeve 15, a movable pressure rod 16 and a movable pressure head 17, the pressure head sleeve 15 is fixed with the driving end of the press machine, an axial strip-shaped through hole 15-1 is formed in the outer wall of the pressure head sleeve 15, the movable pressure rod 16 is arranged in the pressure head sleeve 15, a radial limiting rod 16-1 is arranged on the outer wall of the movable pressure rod 16, the limiting rod 16-1 moves in the strip-shaped through hole 15-1 with the pressure head sleeve 15 moving up and down, and the movable pressure head 17 is fixed at the bottom end of the movable pressure rod 16.

[0029] The bottom of the movable pressure head 17 is fixed with the top of the movable bottom plate 5 through the upper pressing plate 18, so as to drive it to move up and down.

[0030] When the servo press is started, the components on the movable base plate 5 follow the downward movement, when the shell 8 contacts the inclined pipe joint 11, the pressure head sleeve 15 slides along the movable pressure rod 16, and when the pressure head sleeve 15 slides to the movable pressure head 17, the flat surface is combined to generate a downward pressure; after the servo press is pressed to the set height, it is reset, at this time the pressure head sleeve 15 slides along the movable pressure rod 16, when the limiting rod 16-1 reaches the top of the strip-shaped through hole 15-1 of the pressure head sleeve 15, the movable pressure head 17 moves upward with the movable base plate 5, the inclined pipe joint 11 moves upward synchronously with the profiling die 10, and the profiling die 10 is separated from the rectangular covering piece 9, after the separation is completed, the first profiling die 10-1 and the second profiling die 10-2 can be manually taken down, and in this process the profiling die 10 will not fall off and there will be no other safety risks.

Claims

1. A press-fitting device for a multi-angle inclined pipe joint of a water pump, characterized in that, include: The base (1) is provided with a vertically fixed guide rail base plate (2), the guide rail base plate (2) is provided with a guide rail (3), and the guide rail (3) is provided with a vertically sliding slider (4). The movable base plate (5) is vertically set and fixed to the slider (4). The movable base plate (5) is fixed with an inner cavity contour block (6) and a housing positioning pin (7). The housing (8) is also provided. The housing (8) is positioned by the inner cavity contour block (6) and the angular direction is positioned by the housing positioning pin (7). When the pressing hole is facing down, the housing (8) is bolted and fixed to the movable base plate (5). A rectangular cover (9) is fixed to the base (1) with its opening facing upward. A contour mold (10) is provided inside the rectangular cover (9). The contour mold (10) includes a first contour mold (10-1) and a second contour mold (10-2) that are radially divided in half. An inclined pipe joint (11) is placed inside the contour mold (10) and corresponds to the insertion hole of the housing (8). The pressure head assembly is connected to the press drive end at the upper end and to the movable base plate (5) at the lower end, which drives the housing (8) to press against the inclined pipe joint (11).

2. The multi-angle inclined pipe joint press-fitting device for water pumps according to claim 1, characterized in that: The inner cavity contour block (6) is fixed to the movable base plate (5) by contour positioning pin (12).

3. The multi-angle inclined pipe joint press-fitting device for water pumps according to claim 1, characterized in that: After the inclined pipe joint (11) is placed between the first molding die (10-1) and the second molding die (10-2), it is connected by the molding die positioning pin (13), so that the inclined pipe joint (11) and the molding die (10) form an integral part placed in the rectangular covering (9).

4. The multi-angle inclined pipe joint press-fitting device for water pumps according to claim 3, characterized in that: The rectangular covering (9) clamps the molding die (10) from the outside to the inside through the ball-head plunger (14), so that the molding die (10) is stable in position during the pressing process and can be pulled out as a whole after the pressing is completed.

5. The multi-angle inclined pipe joint press-fitting device for water pumps according to claim 1, characterized in that: The pressure head assembly includes a pressure head sleeve (15), a movable pressure rod (16), and a movable pressure head (17). The pressure head sleeve (15) is fixed to the press drive end. An axial strip-shaped through hole (15-1) is opened on the outer wall of the pressure head sleeve (15). The movable pressure rod (16) is placed inside the pressure head sleeve (15). A radial limiting rod (16-1) is provided on the outer wall of the movable pressure rod (16). As the pressure head sleeve (15) moves up and down, the limiting rod (16-1) moves in the strip-shaped through hole (15-1). The movable pressure head (17) is fixed to the bottom end of the movable pressure rod (16).

6. The multi-angle inclined pipe joint press-fitting device for water pumps according to claim 5, characterized in that: The bottom of the movable pressure head (17) is fixed to the top of the movable base plate (5) via the upper pressure plate (18), driving it to move up and down.

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