Impeller abrasive flow polishing tool

Abstract

The impeller abrasive flow polishing tool comprises a cover plate, a lantern ring, a bottom plate and an adapter plate, a first through hole is formed in the bottom of the adapter plate, a circle of second through holes are formed in the bottom plate, a third through hole is formed in the cover plate, a positioning groove is formed in the center of the bottom plate, the bottom plate is located over the adapter plate, and the lantern ring is located over the bottom plate. The cover plate is located over the lantern ring, and the impeller is arranged in the lantern ring through the positioning groove. A conical cavity is formed in the adapter plate, the diameter of the upper end of the conical cavity is larger than that of the lower end of the conical cavity, the bottom of the conical cavity communicates with the first through hole, and the upper end of the conical cavity communicates with the second through hole. According to the utility model, the impeller is fixed in the lantern ring, the grinding material can be pushed bidirectionally and reciprocates in the lantern ring, and meanwhile, the surface of the blade of the impeller is ground and polished, so that the grinding efficiency is improved, and the grinding uniformity and the grinding effect are ensured; and the process of putting the impeller into the tool is simple, convenient and fast, and operation is easy.

Description

Technical Field

[0001] This utility model relates to the field of mechanical device technology, and in particular to an impeller abrasive flow polishing fixture. Background Technology

[0002] Abrasive fluid polishing machines are fluid grinding devices that use viscoelastic polymers as carriers and elastic hard flowing abrasive particles as processing media. The fluids flow under pressure over the surface to be processed to achieve the processing purpose. Abrasive fluid processing improves surface quality by removing micro-protrusions on the workpiece surface through abrasive particles, and it belongs to ultra-precision machining.

[0003] Impellers have many blades, forming numerous chambers. The surfaces of the blades and chambers need to be polished or ground to ensure a smooth finish. Existing methods include manual polishing, which is inefficient, as the polishing head cannot reach the narrow areas of the chambers, resulting in inconsistent and unsatisfactory polishing results. Another method is using an abrasive flow polishing machine, but the tooling design for clamping the impeller is flawed, allowing polishing only one chamber at a time, which is inefficient. Furthermore, the process of moving from one chamber to another can easily damage or scratch the blades, resulting in uneven polishing and unsatisfactory results. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide an impeller abrasive flow polishing fixture. The impeller is fixed inside a collar, and the abrasive can be pushed bidirectionally and move back and forth inside the collar. At the same time, it plays a role in grinding and polishing the surface of the impeller blades, improving grinding efficiency, ensuring grinding uniformity and grinding effect. Moreover, the process of putting the impeller into the fixture is simple, convenient and quick, and easy to operate.

[0005] To solve the above-mentioned technical problems, the present invention provides a technical solution as follows: an impeller abrasive flow polishing fixture is provided, comprising a cover plate, a collar, a base plate, and a transition plate. The bottom of the transition plate is provided with a first through hole, the base plate is provided with a ring of second through holes, the cover plate is provided with a third through hole, and a positioning groove is provided at the center of the base plate. The base plate is located directly above the transition plate, the collar is located directly above the base plate, and the cover plate is located directly above the collar. The impeller is placed inside the collar through the positioning groove.

[0006] The adapter plate has a conical cavity, the diameter of the upper end of the conical cavity is larger than the diameter of the lower end of the conical cavity, the bottom of the conical cavity is connected to the first through hole, and the upper end of the conical cavity is connected to the second through hole.

[0007] To elaborate further, the second through hole is a waist-shaped hole.

[0008] Furthermore, the upper surface of the base plate is provided with an upper slot and the lower surface is provided with a lower slot, the upper end of the adapter plate is positioned and engaged with the lower slot; the lower end of the collar is positioned and engaged with the upper slot; the lower surface of the cover plate is provided with a lower groove, and the upper end of the collar is positioned and engaged with the lower groove.

[0009] Furthermore, the third through hole communicates with the chamber formed between the inside of the collar and / or the blades of the impeller.

[0010] Furthermore, the inner diameter of the collar is larger than the diameter of the impeller.

[0011] The beneficial effects of this utility model are:

[0012] This utility model has a simple structure and ingenious design. The impeller is fixed inside the collar, and the abrasive can be pushed in both directions to move back and forth inside the collar. At the same time, it plays a role in grinding and polishing the surface of the impeller blades, improving grinding efficiency, ensuring grinding uniformity and grinding effect. Moreover, the process of putting the impeller into the tooling is simple, convenient and quick, and easy to operate.

[0013] Furthermore, the adapter plate is equipped with a conical cavity to facilitate the entry of abrasive, increase the amount of abrasive, and ensure that sufficient abrasive is squeezed into the collar to fully contact the surface of the blade, thereby improving the grinding uniformity and grinding effect.

[0014] Furthermore, all the components of this utility model are positioned by slotted engagement and are ultimately pressed and fixed by the mold clamping device on the abrasive flow polishing equipment. Therefore, for impellers of different specifications, only the collar and cover plate need to be replaced, so the replacement process is convenient, quick and simple, improving the versatility of this tooling.

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is an exploded structural diagram of the present invention;

[0018] Figure 3 This is a top view of the present invention;

[0019] Figure 4 yes Figure 3 Sectional view along axis AA;

[0020] The parts in the attached diagram are labeled as follows:

[0021] Impeller 1, cover plate 2, third through hole 21, lower groove 22, collar 3, base plate 4, second through hole 41, upper slot 42, lower slot 43, positioning groove 44, adapter plate 5, first through hole 51, conical cavity 52, medium 6. Detailed Implementation

[0022] The following specific embodiments illustrate the detailed implementation of this utility model. Those skilled in the art can easily understand the advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented in other different ways, that is, different modifications and changes can be made without departing from the scope disclosed in this utility model.

[0023] The descriptions of positions such as up, down, left, and right in this embodiment are based on the orientations shown in the accompanying drawings, have no special meaning, and are not intended to limit the scope of protection of this utility model.

[0024] Example: An impeller abrasive flow polishing fixture, such as Figures 1 to 4 As shown, it includes a cover plate 2, a collar 3, a base plate 4, and a transition plate 5. The bottom of the transition plate is provided with a first through hole 51, the base plate is provided with a ring of second through holes 41, the cover plate is provided with a third through hole 21, and the center of the base plate is provided with a positioning groove 44. The base plate is located directly above the transition plate, the collar is located directly above the base plate, and the cover plate is located directly above the collar. The impeller 1 is placed inside the collar through the positioning groove.

[0025] The adapter plate has a conical cavity 52. ​​The diameter of the upper end of the conical cavity is larger than the diameter of the lower end of the conical cavity. The bottom of the conical cavity is connected to the first through hole, and the upper end of the conical cavity is connected to the second through hole. The conical cavity facilitates the entry of abrasive, increases the amount of abrasive, and ensures that sufficient abrasive is squeezed into the collar to fully contact the surface of the blade, thereby improving the grinding uniformity and grinding effect.

[0026] In this embodiment, the second through hole is an oblong hole. This makes efficient use of the space in the base plate, facilitating the smooth insertion of the abrasive into the collar or from the collar into the adapter plate.

[0027] In this embodiment, the upper surface of the base plate is provided with an upper slot 42 and the lower surface is provided with a lower slot 43. The upper end of the adapter plate is positioned and engaged with the lower slot. The lower end of the collar is positioned and engaged with the upper slot. The lower surface of the cover plate is provided with a lower groove 22. The upper end of the collar is positioned and engaged with the lower groove.

[0028] In this embodiment, since the above-mentioned components are engaged by slots and are ultimately pressed and fixed by the mold clamping device on the abrasive flow polishing equipment, the collar and cover plate can be replaced for impellers of different specifications. Therefore, the replacement process is convenient, quick and simple, improving the versatility of this tooling.

[0029] In this embodiment, the third through hole communicates with the cavity formed between the inside of the collar and / or the blades of the impeller. This facilitates sufficient contact between the abrasive and the blades, improving the grinding and polishing effect.

[0030] In this embodiment, the inner diameter of the collar is larger than the diameter of the impeller. This facilitates full contact between the abrasive and the impeller blades, allowing for grinding and polishing.

[0031] The working principle and process of this utility model:

[0032] Place this fixture on the worktable of the bidirectional abrasive flow polishing equipment. Position the adapter plate, base plate, and collar one by one. Then, place the impeller into the positioning groove of the base plate. Finally, place the cover plate on top of the collar. For different impeller specifications, simply replace the collar and cover plate. Since all components are engaged via slots, the replacement process is convenient, quick, and simple. The bidirectional abrasive flow polishing equipment includes a mold-closing device. This device presses down on the cover plate, fixing the cover plate, collar, base plate, and adapter plate together. Furthermore, the bidirectional abrasive flow polishing equipment can bidirectionally move the medium 6 (or abrasive). Specifically, the upper abrasive cylinder can push the abrasive from above into the third through hole of the cover plate, and the lower abrasive cylinder can push the abrasive from below into the first through hole of the adapter plate. The bidirectional movement of the abrasive grinds the workpiece; this is existing technology and will not be elaborated upon.

[0033] When the abrasive cylinder below moves, it pushes the medium 6 through the first through hole of the adapter plate into the tooling. After passing through the adapter plate, it is squeezed upward into the conical cavity, and then through the second through hole into the collar. After the collar is filled with the medium, the medium is squeezed out from the outlet of the impeller through the third through hole. Then the abrasive cylinder above the polishing machine moves, and the medium is pushed into the impeller and collar through the third through hole. Then the medium moves in the opposite direction, and so on, to achieve the effect of grinding the impeller blades.

[0034] The above description is merely an embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structure made using the contents of the present utility model specification and drawings, or directly or indirectly applied to other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. An impeller abrasive flow polishing tool, characterized by: The assembly includes a cover plate (2), a collar (3), a base plate (4), and a transition plate (5). The bottom of the transition plate has a first through hole (51), the base plate has a ring of second through holes (41), the cover plate has a third through hole (21), and the center of the base plate has a positioning groove (44). The base plate is located directly above the transition plate, the collar is located directly above the base plate, and the cover plate is located directly above the collar. The impeller (1) is placed inside the collar through the positioning groove. The adapter plate has a conical cavity (52), the diameter of the upper end of the conical cavity is larger than the diameter of the lower end of the conical cavity, the bottom of the conical cavity is connected to the first through hole, and the upper end of the conical cavity is connected to the second through hole.

2. The impeller abrasive flow polishing tool of claim 1, wherein: The second through hole is a waist-shaped hole.

3. The impeller abrasive flow polishing tool of claim 1, wherein: The upper surface of the base plate is provided with an upper slot (42) and the lower surface is provided with a lower slot (43). The upper end of the adapter plate is positioned and engaged with the lower slot. The lower end of the collar is positioned and engaged with the upper slot. The lower surface of the cover plate is provided with a lower groove (22). The upper end of the collar is positioned and engaged with the lower groove.

4. The impeller abrasive flow polishing tool of claim 1, wherein: The third through hole communicates with the chamber formed between the inside of the collar and / or the blades of the impeller.

5. The impeller abrasive flow polishing tool of claim 1, wherein: The inner diameter of the collar is larger than the diameter of the impeller.

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