Multi-mode nozzle polishing device

Abstract

The invention discloses a multi-mode nozzle polishing device. The multi-mode nozzle polishing device comprises an ultrasonic amplitude-change pole, a shell, a metal hose, a flow channel switching handle, a sleeve, a flange plate and an adjustable nozzle. The ultrasonic amplitude-change pole is sealed in a cavity of the shell, the sleeve and the flange plate, and is connected with the shell through a screw hole; the shell is connected with the sleeve through a bolt; one end of the metal hose is connected to a front-end flow channel inlet of the ultrasonic amplitude-change pole, and the other end of the metal hose is connected to a sleeve cavity first hole of the sleeve and used for conveying abrasive flow between the ultrasonic amplitude-change pole and the sleeve cavity first hole; the flow channel switching handle is installed in a sleeve arc-shaped groove of the sleeve, and mode switching of pulse jet flow is achieved by rotating the flow channel switching handle. The sleeve is connected with the flange plate through a bolt; the adjustable nozzle is mounted at the bottom of the flange. The high-frequency vibration of the ultrasonic amplitude-change pole enables the abrasive particle flow ejected from the nozzles to have a pulse effect, and the flow channel switching handle can be rotated according to needs, so that switching of pulse jet beams in a single-nozzle mode, a double-nozzle mode and a three-nozzle mode is realized. Meanwhile, the directions of the three nozzles are adjusted in a linkage mode through an adjustable nozzle structure, and inward contraction or outward expansion of jet flow beams is achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of abrasive jet polishing processing, and more specifically, to a multi-modal nozzle polishing device. Background Art

[0002] Precision molds are widely used in fields such as aerospace, medical, and information technology. However, their complex structures and harsh working conditions often lead to problems such as wear, deformation, and fracture, causing significant economic losses. Laser cladding technology uses high-energy lasers to achieve metallurgical bonding between the repair material and the substrate, which can effectively improve the hardness, wear resistance, and corrosion resistance of the mold and extend its service life. Among them, cobalt-based alloys have become the preferred materials for mold repair due to their low dilution rate, high density, and excellent heat and wear resistance. However, this technology has the problem of a relatively large surface roughness after repair, which not only affects the performance of the mold but may also reduce the product quality. The fluid polishing method uses a fluid with extremely good flexibility as the abrasive driving medium, which can better avoid workpiece damage caused by the hard pressing of abrasives. At the same time, due to the uncertainty of the fluid form, it can form a profiling polish on complex free-form surfaces. Compared with water jet, magneto-controlled jet, slurry jet polishing and other technologies, although they can maintain the integrity of the substrate during complex surface treatment, traditional jet polishing methods have a low processing efficiency when facing high-hardness surfaces. At this time, the pulsed jet process shows higher industrialization promotion value due to its significant economic advantages and better process compatibility.

[0003] However, the current pulsed jet machining efficiency of a single nozzle structure is relatively low, which greatly limits the application range of jet polishing technology. Increasing the number of nozzles means using multiple nozzles to work simultaneously, which not only retains the ability of a single nozzle to process complex surface shapes but also can improve the processing efficiency while ensuring accuracy. During the polishing process of a large and complex surface, a long processing time requires a high stability of the entire polishing system, and at the same time, process parameters such as the concentration and pH value of the polishing liquid need to be kept stable. The pulsed jet with a single nozzle structure is difficult to ensure the workpiece processing quality. Although increasing the pressure and the concentration of the polishing liquid can improve the polishing efficiency, increasing the pressure will exacerbate the surface erosion of the particles, reducing the surface quality of the workpiece and increasing the surface shape error; too high a concentration will affect the stability of the polishing system and even block the polishing liquid supply system. When a single-hole nozzle polishes the surface of a workpiece, the obtained material removal function is not ideal, but for the surface polishing of some small parts, a single nozzle may be the most suitable; for the polishing of a complex curved surface with a large polishing area, the design of multiple nozzles can improve the polishing efficiency. At this time, the pulsed jet nozzle design with a mode switching function can flexibly adapt to different working conditions, effectively broadening the application scenarios in multiple fields and significantly enhancing the commercial value of the product.

[0004] The current multi-nozzle abrasive water jets are mainly parallel or convergent nozzle designs. Parallel multi-nozzles are suitable for large-area processing, while convergent multi-nozzles are suitable for high-precision polishing. Most of these nozzles cannot adjust the nozzle angle and cannot form pulse jets. For example, the invention patent with patent number CN 110181409 A proposes an adjustable multi-nozzle jet polishing device. This invention is a significant improvement over the traditional multi-nozzle design. The nozzles can be adjusted in linkage at vertical angles, horizontal angles, and radial distances. However, the linkage adjustment transmission installation of the device is relatively complicated, and it cannot form ultrasonic pulse jets and switch from single nozzles to multi-nozzle jet beams. Summary of the invention

[0005] In ultra-precision polishing, the complex geometric feature surfaces of high-precision molds have bottleneck problems such as difficult to stably control machining accuracy, insufficient material removal rate, and high hardness and high wear resistance of the machined surface. The present invention proposes a multi-modal pulse jet and a polishing device with adjustable jet angle. Through the high-frequency vibration of the end of the ultrasonic amplitude transformer in the inner cavity of the nozzle, the abrasive flow ejected from the nozzle has a pulse effect, which greatly improves the material removal rate. At the same time, the multi-modal jet beam can be controlled by the flow channel switching handle, and the nozzle angle can be adjusted by the contraction device. Therefore, the product has better applicability and can polish the surface of complex parts with high efficiency and quality.

[0006] The present invention achieves the above-mentioned purpose through the following technical solutions: a multi-modal nozzle polishing device, including an ultrasonic amplitude transformer, a shell, a metal hose, a flow channel switching handle, a sleeve, a flange, and an adjustable nozzle; the ultrasonic amplitude transformer is sealed in the cavity of the shell, the sleeve and the flange, and is connected to the shell through a screw hole; the shell and the sleeve are connected by bolts; one end of the metal hose is connected to the front end flow channel inlet of the ultrasonic amplitude transformer, and the other end is connected to the No. 1 hole of the sleeve cavity of the sleeve, which is used for abrasive flow conveying between them; the flow channel switching handle is installed in the sleeve arc groove of the sleeve, and the mode switching of the pulse jet is realized by rotating the flow channel switching handle; the sleeve and the flange are connected by bolts; the adjustable nozzle is installed at the bottom of the flange.

[0007] The ultrasonic amplitude transformer comprises a power supply box, a piezoelectric ceramic, an ultrasonic vibration front end, an ultrasonic vibration middle end, and an ultrasonic vibration rear end; the power supply box is installed at the upper end of the piezoelectric ceramic and is used for sealing the circuit; the ultrasonic vibration front end is installed at the lower end of the piezoelectric ceramic, and has a front end flow channel inside, the front end flow channel outlet is communicated with the internal middle end flow channel of the ultrasonic vibration middle end, and the middle end flow channel outlet is communicated with the internal rear end flow channel of the ultrasonic vibration rear end; a vibration rear end elastic sealing rubber pad is installed on the side of the ultrasonic vibration rear end, a rear end No. 2 arc groove is provided at the bottom, and three circular equidistant array rear end follower bodies are provided below the ultrasonic vibration rear end.

[0008] The housing includes screw holes, an abrasive flow inlet, and a housing notch; the screw holes are circularly and equidistantly arrayed at the upper end of the housing for connecting the housing to the ultrasonic horn; the housing notch is an arc-shaped opening located at the lower end of the housing for placing the flow path switching handle 04.

[0009] As Figure 5 shown, the flow path switching handle 04 includes a right bracket, a handle sealing tile, and a left bracket; the right bracket and the left bracket are connected through bolt holes, and a sealing washer is used for sealing when they are connected; there is an opening in the middle of the handle sealing tile, which can be installed on the left bracket by itself, and there is also a convex part with half of its own arc length in the middle of the handle sealing tile for sealing; a right No. 1 hole and a right No. 2 hole for the abrasive flow to enter are opened on the right bracket; a left No. 1 hole and a left No. 2 hole for the abrasive flow to enter are opened on the left bracket.

[0010] The sleeve includes a sleeve circular sealing groove, a sleeve cavity No. 1 hole, a sleeve baffle, a sleeve notch, a sleeve cavity No. 2 hole, and a circular clamping groove; the sleeve circular sealing groove is arranged at the top of the sleeve for placing a sealing ring to prevent the abrasive flow from flowing into the cavity of the sleeve through the gap between the upper end of the sleeve and the housing; the sleeve cavity No. 1 hole and the sleeve cavity No. 2 hole are opened inside the circular clamping groove; the sleeve baffle is installed on the inner arc groove of the flange of the sleeve, and there is an opening with half of its own arc length in the middle for limiting the flow path switching handle; the sleeve notch is opened on the flange of the sleeve for placing the flow path switching handle; the circular clamping groove is opened on the upper part of the flange of the sleeve for limiting the flow path switching handle so that it can only rotate in the circular clamping groove.

[0011] The flange plate includes flange holes, a flange No. 1 circular arc groove, and a flange elastic sealing tile; the flange holes are opened at the lower end of the flange plate and are circularly and equidistantly arrayed in 3 numbers; the flange No. 1 circular arc groove is opened on the inner side of the flange plate for fitting and installing a vibration rear-end elastic sealing rubber pad; one end of the flange elastic sealing tile is installed inside the flange plate, and the other end is used for fitting and installing in the rear-end No. 2 arc groove; the mutual cooperation among the flange No. 1 circular arc groove, the vibration rear-end elastic sealing rubber pad, the flange elastic sealing tile, and the rear-end No. 2 arc groove can form an independent chamber, so that the abrasive flow entering from the rear-end flow path outlet can only flow into one of the flange holes.

[0012] The adjustable nozzle includes a first nozzle, a second nozzle, a third nozzle, a connecting rod, a fixed bracket, a lead screw, a lead screw nut, and a motor; the first nozzle, the second nozzle, and the third nozzle have the same structure, and they are circularly and equidistantly arrayed and installed at the bottom of the flange; three connecting rods are circularly and equidistantly arrayed, one end of which is hinged to the lead screw nut through a hinge hole, and the other end is hinged to the nozzle; the fixed bracket is fixed to the motor by screws; the lead screw and the lead screw nut cooperate with each other to form a lead screw nut pair; the motor is fixed to the bottom of the flange by screws; the first nozzle includes a nozzle head, a universal ball, a first spherical base, and a second spherical base; the nozzle head is installed in the universal ball by threaded connection; the universal ball is wrapped in the first spherical base and the second spherical base, so it can rotate freely; the first spherical base is connected to the second spherical base by threads; the second spherical base is installed on the flange hole by threaded connection.

[0013] Further, the motor drives the lead screw to make a rotational motion, and the rotational motion of the lead screw is transmitted to the lead screw nut to form a screw drive, and the circumferential rotation of the lead screw nut is restricted by the fixed bracket, so that the lead screw nut can only move up and down; as the lead screw nut moves up and down, the connecting rod drives the nozzle to contract outward and inward, and the angles of the three nozzles are synchronously adjusted in linkage through one lead screw nut.

[0014] Further, the material of the nozzle head is made of a metal material with pressure resistance, wear resistance, and corrosion resistance.

[0015] The beneficial effects of the present invention are as follows:

[0016] 1) A multi-modal nozzle polishing device proposed by the present invention breaks through the situation of traditional single-nozzle pulsed jet and non-adjustable nozzle angle, and realizes the switching of pulsed jet multi-modal and the linkage adjustment of nozzle angle.

[0017] 2) The present invention can realize the transformation of the number of single-double-triple pulsed jets by switching the flow channel switching handle to adjust the number of abrasive flows passing through the nozzle, improving the applicability of the polishing tool.

[0018] 3) During the processing of the device of the present invention, multiple nozzles process simultaneously and cooperate to adjust the jet angle of the nozzle; it can realize the rapid polishing of the complex surface of a larger part and can obtain better surface quality. Description of the Drawings

[0019] Figure 1 It is a partial cross-sectional structure schematic diagram of a multi-modal nozzle polishing device of the present invention.

[0020] Figure 2It is a schematic diagram of the overall structure of a multimodal nozzle polishing device of the present invention.

[0021] Figure 3 It is a structural and sectional schematic diagram of a horn in a multimodal nozzle polishing device of the present invention.

[0022] Figure 4 It is a schematic diagram of the housing structure in a multimodal nozzle polishing device of the present invention.

[0023] Figure 5 It is a schematic diagram of the flow channel switching handle structure in a multimodal nozzle polishing device of the present invention.

[0024] Figure 6 It is a schematic diagram of the sleeve structure and a sectional view in the C direction of the sleeve in a multimodal nozzle polishing device of the present invention.

[0025] Figure 7 It is a schematic diagram of the flange structure in a multimodal nozzle polishing device of the present invention.

[0026] Figure 8 It is a schematic diagram of the adjustable nozzle structure in a multimodal nozzle polishing device of the present invention.

[0027] Figure 9 It is a top view and a rotating sectional view of the adjustable nozzle in a multimodal nozzle polishing device of the present invention.

[0028] Figure 10 It is a sectional view of the flow channel switching evolution along the A direction in a multimodal nozzle polishing device of the present invention.

[0029] Figure 11 It is a bottom view and a rotating sectional view along the B direction of a multimodal nozzle polishing device of the present invention.

[0030] In the figure, 01 is the ultrasonic horn, 02 is the housing, 03 is the metal hose, 04 is the flow path switching handle, 05 is the sleeve, 06 is the flange, 07 is the adjustable nozzle, 0101 is the power supply box, 0102 is the piezoelectric ceramic, 0103 is the front end of ultrasonic vibration, 0104 is the middle end of ultrasonic vibration, 0105 is the rear end of ultrasonic vibration, 0201 is the screw hole, 0202 is the abrasive flow inlet, 0203 is the housing notch, 0401 is the right bracket, 0402 is the handle sealing tile, 0403 is the left bracket, 0501 is the circular sealing groove of the sleeve, 0502 is the No. 1 hole of the sleeve cavity, 0503 is the baffle of the sleeve, 0504 is the notch of the sleeve, 0505 is the No. 2 hole of the sleeve cavity, 0506 is the circular card slot, 0601 is the flange hole, 0602 is the No. 1 circular arc groove of the flange, 0603 is the elastic sealing tile of the flange, 0701 is the No. 1 nozzle, 0702 is the No. 2 nozzle, 0703 is the No. 3 nozzle, 0704 is the connecting rod, 0705 is the fixed bracket, 0706 is the lead screw, 0707 is the lead screw nut, 0708 is the motor, 010301 is the front flow path, 010401 is the middle-shaped flow path, 010501 is the rear flow path, 010502 is the elastic sealing rubber pad at the vibration rear end, 010503 is the follow-up vibrating body at the rear end, 010504 is the No. 2 arc groove at the rear end, 040101 is the No. 1 hole on the right, 040102 is the No. 2 hole on the right, 040401 is the No. 1 hole on the left and 040402 is the No. 2 hole on the left, 070101 is the nozzle head, 070102 is the universal ball, 070103 is the No. 1 spherical base, 070104 is the No. 2 spherical base. Detailed implementation mode

[0031] In order to make the purpose, technical solutions and advantages of the present invention clearer, the following combines specific examples and refers to the attached Figures 1 to 11 The present invention is further described in detail. It should be understood that these descriptions are exemplary and not intended to limit the scope of the present invention. In addition, in the following description, the descriptions of well-known structures and technologies are omitted to avoid unnecessarily confusing the concepts of the present invention.

[0032] Such as Figures 1 to 3 And Figure 5As shown in the figure, a multi-modal nozzle polishing device according to the present invention includes an ultrasonic horn 01, a housing 02, a metal hose 03, a flow path switching handle 04, a sleeve 05, a flange 06, and an adjustable nozzle 07; the ultrasonic horn 01 is sealed in the cavities of the housing 02, the sleeve 05, and the flange 06, and is connected to the housing 02 through screw holes; the housing 02 and the sleeve 05 are connected by bolts; one end of the metal hose 03 is connected to the inlet of the front flow path 010301 of the ultrasonic horn 01, and the other end is connected to the No. 1 hole 0502 of the sleeve cavity of the sleeve 05 for abrasive flow transportation between them; the flow path switching handle 04 is installed in the circular arc groove 0506 of the sleeve 05, and the mode switching of pulsed jet is realized by rotating the flow path switching handle 04; the sleeve 05 and the flange 06 are connected by bolts; the adjustable nozzle 07 is installed at the bottom of the flange 06.

[0033] As Figure 3 shown in the figure, the ultrasonic horn 01 includes a power supply box 0101, a piezoelectric ceramic 0102, an ultrasonic vibration front end 0103, an ultrasonic vibration middle end 0104, and an ultrasonic vibration rear end 0105; the power supply box 0101 is installed on the upper end of the piezoelectric ceramic 0102 for circuit sealing; the ultrasonic vibration front end 0103 is installed on the lower end of the piezoelectric ceramic 0102, and there is a front flow path 010301 inside, and the outlet of the front flow path 010301 communicates with the internal middle flow path 010401 of the ultrasonic vibration middle end 0104, and the outlet of the middle flow path 010401 communicates with the internal rear flow path 010501 of the ultrasonic vibration rear end 0105; a vibration rear end elastic sealing rubber pad 010502 is installed on the side of the ultrasonic vibration rear end 0105, and a rear end No. 2 circular arc groove 010504 is provided at the bottom, and there are three circular equally spaced arrayed rear end vibration followers 010503 below the ultrasonic vibration rear end 0105.

[0034] As Figure 4 shown in the figure, the housing 02 includes screw holes 0201, an abrasive flow inlet 0202, and a housing notch 0203; the screw holes 0201 are circularly and equally spaced on the upper end of the housing 02 for connecting the housing 02 and the ultrasonic horn 01; the housing notch 0203 is a circular arc opening located at the lower end of the housing 02 for placing the flow path switching handle 04.

[0035] As Figure 5As shown in the figure, the flow channel switching handle 04 includes a right bracket 0401, a handle sealing tile 0402, and a left bracket 0403. The right bracket 0401 and the left bracket 0403 are connected through bolt holes, and a sealing washer is used for sealing when they are connected. There is an opening in the middle part of the handle sealing tile 0402, which can be installed on the left bracket 0404. There is also a convex part with half of its own arc length in the middle of the handle sealing tile 0402 for sealing. A right No. 1 hole 040101 and a right No. 2 hole 040102 for the abrasive flow to enter are opened on the right bracket 0401. A left No. 1 hole 040401 and a left No. 2 hole 040402 for the abrasive flow to enter are opened on the left bracket 0404.

[0036] As Figure 6 As shown in the figure, the sleeve 05 includes a sleeve circular sealing groove 0501, a sleeve cavity No. 1 hole 0502, a sleeve baffle 0503, a sleeve notch 0504, a sleeve cavity No. 2 hole 0505, and a circular clamping groove 0506. The sleeve circular sealing groove 0501 is arranged at the top end of the sleeve 05 for placing a sealing ring to prevent the abrasive flow from flowing into the cavity of the sleeve 05 through the gap between the upper end of the sleeve 05 and the housing 02. The sleeve cavity No. 1 hole 0502 and the sleeve cavity No. 2 hole 0506 are opened inside the circular clamping groove 0505. The sleeve baffle 0503 is installed on the inner arc groove of the flange of the sleeve 05 and has an opening with half of its own arc length in the middle for limiting the flow channel switching handle 04. The sleeve notch 0504 is opened on the flange of the sleeve 05 for placing the flow channel switching handle 04. The circular clamping groove 0506 is opened on the upper part of the flange of the sleeve 05 for limiting the flow channel switching handle 04 so that it can only rotate in the circular clamping groove 0505.

[0037] As Figure 7 As shown in the figure, the flange plate 06 includes a flange hole 0601, a flange No. 1 circular arc groove 0602, and a flange elastic sealing tile 0603. The flange hole 0601 is opened at the lower end of the flange plate 06 and is circularly and equidistantly arranged in an array of 3. The flange No. 1 circular arc groove 0602 is opened inside the flange plate 06 for fitting and installing the vibration rear-end elastic sealing rubber pad 010502. One end of the flange elastic sealing tile 0603 is installed inside the flange plate 06, and the other end is used for fitting and installing in the rear-end No. 2 arc groove 010504. The mutual cooperation among the flange No. 1 circular arc groove 0602, the vibration rear-end elastic sealing rubber pad 010502, the flange elastic sealing tile 0603, and the rear-end No. 2 arc groove 010504 can form an independent chamber, so that the abrasive flow entering from the outlet of the rear-end flow channel 010501 can only flow into one of the flange holes 0601.

[0038] As Figure 8 and Figure 9 shown, the adjustable nozzle 07 includes a first nozzle 0701, a second nozzle 0702, a third nozzle 0703, a connecting rod 0704, a fixed bracket 0705, a lead screw 0706, a lead screw nut 0707, and a motor 0708; the first nozzle 0701, the second nozzle 0702, and the third nozzle 0703 have the same structure, and they are circularly and equally spaced and installed at the bottom of the flange 06; 3 connecting rods 0704 are circularly and equally spaced and installed, one end of which is hinged to the lead screw nut 0707 through a hinge hole, and the other end is hinged to the nozzle; the fixed bracket 0705 is fixed to the motor 0708 by screws; the lead screw 0706 and the lead screw nut 0707 cooperate with each other to form a lead screw nut pair; the motor 0708 is fixed to the bottom of the flange 06 by screws; the first nozzle 0701 includes a nozzle head 070101, a universal ball 070102, a first spherical base 070103, and a second spherical base 070104; the nozzle head 070101 is installed in the universal ball 070102 by threaded connection; the universal ball 070102 is wrapped in the first spherical base 070103 and the second spherical base 070104, so it can rotate freely; the first spherical base 070103 is connected to the second spherical base 070104 by thread; the second spherical base 070104 is installed in the flange hole 0601 by threaded connection.

[0039] In the present invention, the motor 0708 drives the lead screw 0706 to perform a rotational motion, and the rotational motion of the lead screw 0706 is transmitted to the lead screw nut 0707 to form a screw drive, and the circumferential rotation of the lead screw nut 0707 is restricted by the fixed bracket 0705, so that the lead screw nut 0707 can only move up and down; the connecting rod 0704 drives the nozzle to contract outward and inward as the lead screw nut 0707 moves up and down, and the angles of the three nozzles are synchronously adjusted in linkage through one lead screw nut 0707.

[0040] As an optimal choice of the present invention, the material of the nozzle head 070101 is made of a metal material with pressure resistance, wear resistance, and corrosion resistance.

[0041] When the present invention is applied, the polishing process is completed as follows: The polishing device is installed on the Z-axis driving mechanism along the vertical axis of the machine tool. Using a precision servo motion module, the target distance of the polishing device is adjusted and the feeding speed of the polishing device is controlled. First, the workpiece to be processed is fixed on the processing table of the numerical control machine tool, and the runner switching handle 04 is rotated according to the needs of the workpiece. Secondly, abrasive flow is injected into the abrasive flow inlet 0202 through the delivery pipe, and the ultrasonic generator is started. When polishing micro-parts, the runner switching handle 04 is adjusted to the original position, as Figure 10 shown. At this time, it is in the first gear position, and the device is in a single-pulse jet beam state. The right No. 1 hole 040101 communicates with the metal hose 03, so that the abrasive flow sealed in the cavity of the housing 02 flows into the runner 010301, and flows into the cavity surrounded by the vibration rear-end elastic sealing rubber pad 010502 and the flange elastic sealing tile 0603 through the internal runner of the ultrasonic horn 01. Finally, the abrasive flow flows into the one flange hole 0601, and the ultrasonic horn 01 emits high-frequency vibration, driving the rear-end vibrating body 010503 to vibrate at high frequency in the cavity of the second spherical base 070103, so that the abrasive flow ejected from the nozzle head 070101 is a jet beam with a pulse effect. The pulse effect of the abrasive jet makes the abrasive grains have higher kinetic energy to erode the workpiece processing area. At the same time, the pulse jet of a single nozzle can well polish micro-scale parts with a high aspect ratio. Finally, by adjusting the adjustable nozzle 07, the pulse jet beam ejected from the nozzle head 070101 can better adapt to the processing surface. Therefore, under the coordinated work of the pulse jet and the adjustable nozzle, the processing of the complex surface of micro-parts can be quickly completed, and a high polishing quality can be obtained.

[0042] When processing larger parts, only need to rotate the runner switching handle 04, and the double-nozzle pulse jet and the triple-nozzle pulse jet can be set according to needs. When the runner switching handle 04 is rotated clockwise by 30°, as Figure 10 and Figure 11 shown. At this time, it is in the second gear position, which is a double-pulse jet beam. The left No. 1 hole 040401 communicates with the sleeve cavity No. 2 hole 0506, and the abrasive flow flows in the cavity formed by the outside of the ultrasonic horn 01, the sleeve 05, and the flange 06. Finally, the pulse jet is ejected from the second nozzle 0702 and the third nozzle 0703. When the runner switching handle 04 is rotated clockwise by 60°, as Figure 10As shown, it is in the third gear at this time, and it is a three-pulse jet beam; the right No. 2 hole 040102 is communicated with the metal hose 03. At the same time, the left No. 2 hole 040402 is communicated with the No. 2 hole 0506 of the sleeve cavity. At this time, the abrasive flow exists in both the internal flow channel of the ultrasonic horn 01 and the cavity formed by the sleeve 05 and the flange 06. Finally, the pulsed jet is ejected from the three nozzles. Finally, by adjusting the nozzle angle, multiple pulsed jets can be focused on a specific processing area to achieve rapid processing of high-hardness and high-wear-resistant areas; and through the precise control of the movement of the CNC machine tool servo module, the rapid polishing operation of the entire part can be realized.

[0043] The modal switching of the pulsed jet beam in the single-nozzle mode, double-nozzle mode, and triple-nozzle mode not only improves the applicability of the product, but also greatly improves the polishing efficiency of the abrasive jet under the condition of multi-nozzle pulsed jet machining. At the same time, the adjustable nozzle 07 enables the polishing device to better adapt to complex machining surfaces. Therefore, the device of the present invention can perform the polishing operation with high efficiency and high quality.

[0044] The above embodiments are only preferred embodiments of the present invention, and do not limit the technical solutions of the present invention. Any technical solutions that can be achieved on the basis of the above embodiments without creative labor shall be regarded as falling within the scope of the patent rights of the present invention.

Claims

1. A multi-modal nozzle polishing device, characterized in that: The ultrasonic horn (01) comprises an ultrasonic horn (01), a shell (02), a metal hose (03), a flow channel switching handle (04), a sleeve (05), a flange (06), and an adjustable nozzle (07); the ultrasonic horn (01) is sealed in the cavity of the shell (02), the sleeve (05), and the flange (06), and is connected to the shell (02) through a screw hole; the shell (02) and the sleeve (05) are connected by bolts; one end of the metal hose (03) is connected to the ultrasonic horn (01) ) at the front end flow channel (010301) inlet, and the other end is connected to the sleeve cavity No. 1 hole (0502) of the sleeve (05) for conveying the abrasive flow between them; the flow channel switching handle (04) is installed in the sleeve arc groove (0506) of the sleeve (05), and the mode switching of the pulse jet is achieved by rotating the flow channel switching handle (04); the sleeve (05) and the flange (06) are connected by bolts; the adjustable nozzle (07) is installed at the bottom of the flange (06).

2. A multi-mode nozzle polishing device according to claim 1, characterized in that: The ultrasonic horn (01) comprises a power box (0101), a piezoelectric ceramic (0102), an ultrasonic vibration front end (0103), an ultrasonic vibration middle end (0104), and an ultrasonic vibration rear end (0105); the power box (0101) is mounted on the upper end of the piezoelectric ceramic (0102) for sealing the circuit; the ultrasonic vibration front end (0103) is mounted on the lower end of the piezoelectric ceramic (0102) and has a front end flow channel (010301) inside, and the outlet of the front end flow channel (010301) is connected to the ultrasonic The inner middle end flow channel (010401) of the acoustic vibration middle end (0104) is communicated, and the outlet of the middle end flow channel (010401) is communicated with the inner rear end flow channel (010501) of the ultrasonic vibration rear end (0105); a vibration rear end elastic sealing rubber pad (010502) is installed on the side of the ultrasonic vibration rear end (0105), a rear end No. 2 arc groove (010504) is provided at the bottom, and three rear end follower vibration bodies (010503) in a circular equidistant array are provided below the ultrasonic vibration rear end (0105).

3. A multi-mode nozzle polishing device according to claim 1, characterized in that: The shell (02) comprises a screw hole (0201), an abrasive inlet (0202), and a shell notch (0203); the screw holes (0201) are arranged in a circular equidistant array at the upper end of the shell (02) and are used for connecting the shell (02) and the ultrasonic horn (01); the shell notch (0203) is an arc-shaped opening located at the lower end of the shell (02) and is used for placing the flow channel switching handle (04).

4. A multi-mode nozzle polishing device according to claim 1, characterized in that: The flow channel switching handle (04) includes a right bracket (0401), a handle sealing tile (0402), and a left bracket (0403); the right bracket (0401) and the left bracket (0403) are connected through bolt holes, and a sealing gasket is used for sealing when they are connected; the handle sealing tile (0402) has an opening in the middle part, so that it can be installed on the left bracket (0404), and the handle sealing tile (0402) also has a raised part with half of its arc length in the middle for sealing; the right bracket (0401) is provided with a right hole No. 1 (040101) and a right hole No. 2 (040102) for the abrasive flow to enter; the left bracket (0404) is provided with a left hole No. 1 (040401) and a left hole No. 2 (040402) for the abrasive flow to enter.

5. A multi-mode nozzle polishing device according to claim 1, characterized in that: The sleeve (05) comprises a sleeve circular sealing groove (0501), a sleeve cavity No. 1 hole (0502), a sleeve baffle (0503), a sleeve notch (0504), a sleeve cavity No. 2 hole (0505), and a circular groove (0506); the sleeve circular sealing groove (0501) is arranged at the top of the sleeve (05) and is used to place a sealing ring to prevent abrasive flow from flowing into the cavity of the sleeve (05) from the gap between the upper end of the sleeve (05) and the shell (02); the sleeve cavity No. 1 hole (0502) and the sleeve cavity No. 2 hole (0505) are arranged at the top of the sleeve (05). 6) is opened on the inner side of the circular groove (0505); the sleeve baffle (0503) is installed on the inner arc groove of the flange of the sleeve (05), and has an opening in the middle with half of its own arc length, which is used to limit the flow channel switching handle (04); the sleeve notch (0504) is opened on the flange of the sleeve (05) for placing the flow channel switching handle (04); the circular groove (0506) is opened on the upper part of the flange of the sleeve (05) for limiting the flow channel switching handle (04) so ​​that it can only rotate in the circular groove (0505).

6. A multi-mode nozzle polishing device according to claim 1, characterized in that: The flange (06) comprises a flange hole (0601), a flange arc-shaped groove No. 1 (0602), and a flange elastic sealing shoe (0603); the flange hole (0601) is opened at the lower end of the flange (06) and is arranged in a circular array of three holes at equal intervals; the flange arc-shaped groove No. 1 (0602) is opened on the inner side of the flange (06) for matching and installing a vibration rear end elastic sealing rubber pad (010502); one end of the flange elastic sealing shoe (0603) is installed on the flange (06) Inside, the other end is used to cooperate and be installed in the rear end arc groove No. 2 (010504); the flange arc groove No. 1 (0602), the vibration rear end elastic sealing rubber pad (010502), the flange elastic sealing tile (0603) and the rear end arc groove No. 2 (010504), the mutual cooperation between them can form an independent chamber, so that the abrasive flow entering from the outlet of the rear end flow channel (010501) can only flow into one of the flange holes (0601).

7. A multi-mode nozzle polishing device according to claim 1, characterized in that: The adjustable nozzle 07 comprises a No. 1 nozzle (0701), a No. 2 nozzle (0702), a No. 3 nozzle (0703), a connecting rod (0704), a fixed bracket (0705), a lead screw (0706), a lead screw nut (0707), and a motor (0708); the No. 1 nozzle (0701), the No. 2 nozzle (0702) and the No. 3 nozzle (0703) have the same structure, and are installed in a circular equidistant array at the bottom of the flange (06); three connecting rods (0704) are installed in a circular equidistant array, one end of which is hinged to the lead screw nut (0707) through a hinge hole, and the other end is hinged to the nozzle; the fixed bracket (0705) is fixed to the motor (0708) by screws; the lead screw (0706) and the lead screw nut (0707) cooperate with each other to form a lead screw nut. The motor (0708) is fixed to the bottom of the flange (06) by screws; the nozzle No. 1 (0701) includes a nozzle head (070101), a universal ball (070102), a spherical base No. 1 (070103), and a spherical base No. 2 (070104); the nozzle head (070101) is installed in the universal ball (070102) by threaded connection; the universal ball (070102) is wrapped in the spherical base No. 1 (070103) and the spherical base No. 2 (070104), so it can rotate freely; the spherical base No. 1 (070103) is connected to the spherical base No. 2 (070104) by threads; the spherical base No. 2 (070104) is installed on the flange hole (0601) by threaded connection.

8. A multi-mode nozzle polishing device according to claim 7, characterized in that: The motor (0708) drives the lead screw (0706) to rotate, and the rotational motion of the lead screw (0706) is transmitted to the lead screw nut (0707) to form a spiral transmission, and the circumferential rotation of the lead screw nut (0707) is limited by the fixed bracket (0705), so that the lead screw nut (0707) can only move up and down; the connecting rod (0704) drives the nozzle to retract outward and inward as the lead screw nut (0707) moves up and down, and the angles of the three nozzles are synchronously adjusted through the lead screw nut (0707).

9. A multi-mode nozzle polishing device according to claim 1, characterized in that: The nozzle head (070101) is made of a pressure-resistant, wear-resistant and corrosion-resistant metal material.

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