CN111660082A - Adaptive flexible support mechanism - Google Patents

Abstract

The invention discloses an adaptive flexible support mechanism, comprising a servo press, a press head and a fixing seat coaxially arranged from top to bottom, wherein the press head is arranged at the bottom of a press rod of the press and can follow Synchronously move up and down relative to the fixed seat, the inside of the press head is provided with a central support rod that can slide up and down relative to its casing, and a center support rod is arranged between the servo press and the press head that can be opposed to the press head A laterally movable fixing mechanism, the fixing mechanism abuts with the top of the central support rod to fix the position of the central support rod. The present invention has a simple and delicate structure, the central support rod can slide up and down relative to the casing to adapt to the rotor shafts of different heights, and at the same time, the position of the central support rod is fixed by the wedge block, so that the central support rod can abut with the rotor shaft of the water pump, eliminating the need for The dimensional tolerance between the rotor shafts of the pump assembly improves the adaptability of the equipment.

Description

Adaptive flexible support mechanism

technical field

The invention relates to the technical field of water pump processing, in particular to an adaptive flexible support mechanism.

Background technique

The water pump is a machine that transports liquid or pressurizes the liquid. It transfers the mechanical energy of the prime mover or other external energy to the liquid to increase the liquid energy. It is mainly used to transport liquids including water, oil, acid-base liquid, emulsion, and suspension emulsion. It can also transport liquids, gas mixtures and liquids containing suspended solids. The technical parameters of pump performance include flow, suction, head, shaft power, water power, efficiency, etc.; according to different working principles, it can be divided into volumetric pumps, vane pumps and other types. Positive displacement pump uses the change of its working chamber volume to transfer energy; vane pump uses the interaction between rotating blades and water to transfer energy, including centrifugal pump, axial flow pump and mixed flow pump.

In the assembly process of the water pump, it is necessary to assemble the sealing parts on the rotor shaft inside the water pump, but during the processing, due to the difference in the processing technology, there is a certain tolerance between the lengths of the rotor shaft, and the rotor shaft is assembled inside the water pump. Fixed assembly dimensional relationship. At this time, it is necessary to press the sealing parts into the inside of the water pump while keeping the dimensional relationship between the assembled components of the water pump stable and unchanged. However, the current pressing mechanism is fixed and cannot be adjusted, and it is difficult to adapt to the existing water pump. Some assembly dimensional tolerances. Therefore, how to press in the seal while keeping the existing assembly dimensional relationship unchanged is a problem that needs to be solved urgently at present.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the shortcomings of the prior art and provide an adaptive flexible support mechanism.

The object of the present invention is achieved through the following technical solutions:

An adaptive flexible support mechanism, including a servo press, a press head and a fixing seat coaxially arranged from top to bottom, the press head is arranged at the bottom of the pressing rod of the press machine and can be synchronous with it relative to the fixed seat The seat moves up and down, the interior of the press head is provided with a central support rod that can slide up and down relative to its casing, and a fixing mechanism that can move laterally relative to the press head is arranged between the servo press and the press head, The fixing mechanism abuts the top of the central support rod to fix the position of the central support rod.

Preferably, the fixing mechanism includes a first cylinder, a chute and a wedge block, the chute is laterally arranged between the servo press and the press head, and the wedge block is connected to the first cylinder. The cylinder head is fixedly connected and driven by the first cylinder to move in the chute.

Preferably, the top of the central support rod protrudes into the chute, the lower surface of the wedge-shaped block has a slope, and the top of the central support rod has a slope that matches the lower surface and abuts against it. catch.

Preferably, the central support rod is T-shaped, the top of which is wider than the diameter of the rod portion and protrudes out of the housing, and the rod portion is slidably arranged in the housing.

Preferably, a fixing rod is laterally arranged inside the central support rod, two through holes opposite to each other are provided on the side wall of the housing, and both ends of the fixing rod respectively extend into the through holes and The center support rod can move up and down in the through hole synchronously.

Preferably, the housing is fixedly connected to the chute and partially embedded in the chute, the top center of the housing has an accommodating groove, the accommodating groove is provided with a return spring, and the The return spring is sleeved on the rod portion of the central support rod, one end of which is in contact with the bottom surface of the top, and the other end is in contact with the bottom surface of the accommodating groove.

Preferably, the bottom of the housing is provided with a connecting head, and the interior of the connecting head is hollow and has a figure-eight opening.

Preferably, the fixing base includes a horizontally arranged mounting plate, and the mounting plate can float up and down relative to the pressure head through an elastic column arranged at the bottom of the mounting plate.

Preferably, the fixing seat further includes a clamp, the interior of the clamp is provided with a fork claw coaxial with the central support rod, and the bottom of the fork claw is connected with a second air cylinder and is driven by it in the clamp Moving up and down.

Preferably, the fork claw is a petal-type fork claw with elastic ends. In the initial state, the fork claw protrudes from the through groove in the clamp; in the second state, the fork claw shrinks to the in the through groove in the clamp.

The beneficial effects of the present invention are mainly reflected in:

1. The central support rod can slide up and down relative to the housing to adapt to the rotor shafts with different height differences. At the same time, the position of the central support rod is fixed by the wedge block, so that the central support rod can abut with the rotor shaft of the water pump, eliminating the need for the rotor of the pump assembly. The dimensional tolerance between the shafts improves the adaptability of the equipment;

2. There is a fixed rod inside the center support rod, which can prevent the center support rod from rotating during the up and down movement, affecting the stability of the abutment between it and the rotor shaft;

3. The compact size of the pressure head can extend into the inside of the water pump, and cooperate with the clamp to press the seal and the rotor shaft together, and at the same time, it will not destroy the assembly size relationship between other existing components and the water pump;

4. The figure-eight opening of the connecting head connected to the bottom of the casing can facilitate the rotor shaft to extend into the inside of the pressure head. At the same time, the connecting head is made of softer material, which can avoid hard contact with the water pump processing parts. , to avoid unnecessary wear on the workpiece;

5. The mounting plate set on the fixed seat can float up and down to adapt to water pumps of different heights, so as to eliminate the dimensional tolerance caused by the difference of water pump processing.

Description of drawings

The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings:

Fig. 1: the schematic diagram of the embodiment of the present invention;

Figure 2: a partial cross-sectional view of an embodiment of the present invention;

Figure 3: Enlarged view of part A in Figure 2;

Figure 4: a schematic diagram of an embodiment of the present invention in a working state;

Figure 5: Enlarged view of part B in Figure 4.

Detailed ways

The present invention will be described in detail below with reference to the specific embodiments shown in the accompanying drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional transformations made by those of ordinary skill in the art based on these embodiments are all included in the protection scope of the present invention.

In the description of the scheme, it should be noted that the terms "center", "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", " The orientation or positional relationship indicated by "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, which is only for convenience and simplification of description, rather than indicating or implying that the indicated device or element must have a specific orientation , constructed and operated in a specific orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first", "second", and "third" are used for descriptive purposes only and should not be construed to indicate or imply relative importance. In addition, in the description of the solution, with reference to the operator, the direction close to the operator is the proximal end, and the direction away from the operator is the distal end.

As shown in Figures 1 to 5, the present invention discloses an adaptive flexible support mechanism, comprising a servo press 1, a press head 2 and a fixed seat 3 coaxially arranged from top to bottom, the press head 2 is arranged on the The bottom of the pressing rod 101 of the press 1 can move up and down relative to the fixed seat 3 synchronously with it. The inner of the pressing head 2 is provided with a central support rod 202 that can slide up and down relative to the casing 201, so the Between the servo press 1 and the indenter 2, a fixing mechanism 4 that can move laterally relative to the indenter 2 is arranged. The location of the center support rod 202 .

Specifically, as shown in FIG. 3 , the fixing mechanism 4 includes a first cylinder 401 , a chute 402 and a wedge block 403 , and the chute 402 is fixed between the servo press 1 and the press head 2 , the wedge block 403 is fixedly connected with the cylinder head 4011 of the first cylinder 401 and is driven by the first cylinder 401 to move laterally in the chute 402 . In this preferred embodiment, the upper surface 4032 of the wedge-shaped block 403 is a flat surface, which can be in contact with the inner wall of the chute 402 and is driven along the slide by the first air cylinder 401 The inner wall of the groove 402 moves; the lower surface 4031 of the wedge-shaped block 403 is an inclined surface with a slope, and the inclined surface enables the wedge-shaped block 403 to change the position of the central support rod 202 relative to the housing 201 by moving .

In the present invention, the central support rod 202 is T-shaped, the width of the top 2021 is larger than the diameter of the rod portion 2022 and protrudes from the housing 201 , and the rod portion 2022 is slidably arranged in the housing 201 . The central support rod 202 has a T-shaped structure, so that the central support rod 202 will not slide out of the housing 201 .

Further, the top 2021 of the central support rod 202 extends into the chute 402, and the top 2021 of the central support rod 202 has a slope matching the lower surface 4031 of the wedge-shaped block 403, and the central support The top 2021 of the rod 202 abuts against the lower surface 4031 . Such a structure can facilitate the movement of the wedge block 403 and improve the stability of its abutment with the top 2021 of the central support rod 202 .

As shown in FIG. 3 , a fixing rod 2023 is laterally disposed inside the central support rod 202 , and two opposite through holes 2011 are provided on the side wall of the housing 201 . The two ends of the fixing rod 2023 are respectively It extends into the through hole 2011 and can follow the central support rod 202 to move up and down in the through hole 2011 synchronously. The length of the through hole 2011 is not less than the movable distance of the central support rod 202 to prevent the up and down movement of the central support rod 202 from being hindered. The arrangement of the fixing rod 2023 can prevent the central support rod 202 from rotating in the housing 201 so as to affect the abutment between the central support rod 202 and the rotor shaft 501 in the water pump 5 .

The housing 201 is fixedly connected to the chute 402 and partially embedded in the chute 402. In this preferred embodiment, the top of the housing 201 is screwed to the bottom of the chute 402. In other embodiments, the housing 201 may be connected to the chute 402 in other suitable manners. There is an accommodating groove 2012 in the center of the top of the casing 201 , and a return spring 203 is arranged in the accommodating groove 2012 . The bottom surface is in contact with the bottom surface, and the other end is in contact with the bottom surface of the accommodating groove 2012 . Under the elastic force of the return spring 203 , the top 2021 of the central support rod 202 always keeps abutting with the lower surface 4031 of the wedge-shaped block 403 .

As shown in FIG. 1 and FIG. 3 , a connector 204 is disposed at the bottom of the housing 201 . The connector 204 is hollow inside and has a figure-eight opening 2041 . In this preferred embodiment, the connecting head 204 is made of silica gel material, so as to avoid hard contact between the connecting head 204 and the rotor shaft 501 and cause unnecessary wear on the water pump 5 and the rotor shaft 501, Of course, in other feasible embodiments, the connector 204 can be made of other suitable materials. The figure-eight opening 2041 has a guiding effect on the rotor shaft 501 , so that the rotor shaft 501 can more conveniently extend into the interior of the connecting head 204 so as to abut with the central support rod 202 .

In the present invention, the fixing base 3 includes a horizontally arranged mounting plate 301 , and the mounting plate 301 can float up and down relative to the indenter 2 through an elastic column 302 arranged at the bottom of the mounting plate 301 . The floating mounting plate 301 can further eliminate the machining tolerance between the water pumps and improve the adaptability of the fixing base 3 . In other feasible embodiments, the mounting plate 301 may also move in three directions, up and down, left and right, and front and rear, so as to further enhance the adaptability of the fixing base 3 .

As shown in FIG. 2 and FIG. 4 , the fixing base 3 further includes a clamp 303 . The interior of the clamp 303 is provided with a fork 3031 that is coaxial with the central support rod 202 , and the bottom of the fork 3031 is connected with a fork 3031 . The second air cylinder 304 is driven by the second air cylinder 304 to move up and down in the clamp 303 . The top of the clamp 303 forks the seal 6 through the fork 3031 .

As shown in FIGS. 4-5 , the fork claws 3031 are elastic petal-type fork claws. In the initial state, the fork claws 3031 protrude from the through grooves 3032 in the clamp 303 . The diameter is larger than the diameter of the inner hole of the sealing member 6, so as to fork the sealing member 6; in the second state, the fork claws 3031 are in contact with the rotor shaft 501 and are contracted in the opening of the clamp 303. groove 3032 to separate from the seal 6 .

The working principle of the present invention is:

First, place the water pump 5 to be processed on the mounting plate 301 of the fixed seat 3, and the fork claws 3031 in the fixture 303 fork the seal 6;

Next, the servo press 1 drives the pressing head 2 to press down relative to the fixed seat 3, and the connecting head 204 extends into the water pump 5. At this time, the rotor shaft 501 in the water pump 5 extends into the connecting head 204. internal;

Then, the rotor shaft 501 is in contact with the bottom of the central support rod 202 . At this time, the wedge block 403 in the fixing mechanism 4 is driven by the first air cylinder 401 to move forward. The top abuts, and the wedge-shaped block 403 pushes the center support rod 202 and the rotor shaft 501 tightly;

Finally, the servo press 1 continues to drive the press head 2 to press down, and the central support rod 202 drives the rotor shaft 501 to press down synchronously. At this time, the second air cylinder 304 drives the fork claws 3031 to move down, so that the The rotor shaft 501 is pressed into the seal 6 .

The structure of the present invention is simple and exquisite, the central support rod 202 can slide up and down relative to the housing 201 to adapt to the rotor shafts 501 with different height differences, and at the same time, the position of the central support rod 202 is fixed by the wedge block 403, so that the central support rod 202 can be connected with The rotor shafts 501 of the water pump 5 abut against each other, thereby eliminating the dimensional tolerance between the rotor shafts 501 assembled with the water pump 5 and improving the adaptability of the equipment. The pressure head 2 is small in size, and can extend into the interior of the water pump 5, and cooperate with the clamp 303 to crimp the seal 6 and the rotor shaft 501 together, and at the same time, the assembly between other existing components and the water pump 5 will not be damaged. size relationship.

It should be understood that although this specification is described in terms of embodiments, not every embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole, and each The technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

The series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, and they are not used to limit the protection scope of the present invention. Changes should all be included within the protection scope of the present invention.

Claims (10)

1. Self-adaptation flexible supporting mechanism, servo press (1), pressure head (2) and fixing base (3) including the coaxial setting of top-down, its characterized in that: the pressing head (2) is arranged at the bottom of a pressing rod (101) of the pressing machine (1) and can synchronously move up and down relative to the fixed seat (3) along with the pressing head, a central support rod (202) capable of sliding up and down relative to a shell (201) of the pressing head is arranged inside the pressing head (2), a fixing mechanism (4) capable of transversely moving relative to the pressing head (2) is arranged between the servo pressing machine (1) and the pressing head (2), and the fixing mechanism (4) is abutted to the top (2021) of the central support rod (202) to fix the position of the central support rod (202).

2. The adaptive flexible support mechanism of claim 1, wherein: the fixing mechanism (4) comprises a first air cylinder (401), a sliding groove (402) and a wedge block (403), the sliding groove (402) is transversely arranged between the servo press (1) and the pressure head (2), and the wedge block (403) is fixedly connected with an air cylinder head (4011) of the first air cylinder (401) and is driven by the first air cylinder (401) to move in the sliding groove (402).

3. The adaptive flexible support mechanism of claim 2, wherein: the top (2021) of the central support rod (202) extends into the sliding groove (402), the lower surface (4031) of the wedge-shaped block (403) has a slope, and the top (2021) of the central support rod (202) has a slope matched with the lower surface (4031) and is abutted against the lower surface.

4. The adaptive flexible support mechanism of claim 3, wherein: the central support rod (202) is T-shaped, the width of the top (2021) of the central support rod is larger than the diameter of the rod part (2022) of the central support rod and protrudes out of the shell (201), and the rod part (2022) is arranged in the shell (201) in a sliding mode.

5. The adaptive flexible support mechanism of claim 4, wherein: the inside of center support pole (202) transversely is provided with a dead lever (2023), be provided with two through-holes (2011) that the position is relative on the lateral wall of casing (201), the both ends of dead lever (2023) stretch into respectively in through-hole (2011) and can follow center support pole (202) are in synchronous reciprocating in through-hole (2011).

6. The adaptive flexible support mechanism of claim 5, wherein: the shell (201) is fixedly connected with the sliding groove (402) and partially embedded in the sliding groove (402), a containing groove (2012) is formed in the center of the top of the shell (201), a return spring (203) is arranged in the containing groove (2012), the return spring (203) is sleeved on the rod portion (2022) of the central supporting rod (202), one end of the return spring is abutted against the bottom surface of the top portion (2021), and the other end of the return spring is abutted against the bottom surface of the containing groove (2012).

7. The adaptive flexible support mechanism of claim 6, wherein: the bottom of casing (201) is provided with a connector (204), the inside cavity of connector (204), and have splayed opening (2041).

8. The adaptive flexible support mechanism of any of claims 1-7, wherein: fixing base (3) are including mounting panel (301) of level setting, mounting panel (301) can be relative through elastic column (302) that its bottom set up pressure head (2) fluctuate.

9. The adaptive flexible support mechanism of claim 8, wherein: the fixing seat (3) further comprises a clamp (303), a fork claw (3031) coaxial with the central support rod (202) is arranged inside the clamp (303), and the bottom of the fork claw (3031) is connected with a second air cylinder (304) and driven by the second air cylinder to move up and down in the clamp (303).

10. The adaptive flexible support mechanism of claim 9, wherein: the fork claw (3031) is a claw type fork claw with an elastic end part, and in an initial state, the fork claw (3031) extends out of a through groove (3032) in the clamp (303); in the second state, the fork claw (3031) is retracted in a through groove (3032) in the clamp (303).

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