Form-following type dust-free sand blasting cleaning machining head

Abstract

The invention discloses a follow-up dust-free sand blasting cleaning machining head, and relates to the field of sand blasting cleaning, and the follow-up dust-free sand blasting cleaning machining head comprises a cleaning assembly and a control assembly. The cleaning assembly is arranged in the sealing cavity and can also achieve automatic unblocking under the condition that the spraying pipe is blocked, the height, angle and interval of the spraying pipe can be automatically adjusted according to the outline of a workpiece through the control assembly, and the cleaning assembly comprises a conveying piece arranged in the sealing cavity and the spraying pipe connected with the conveying piece through a connecting pipe. The surface of the sealing cavity is provided with a brush forming a sealing state with a workpiece, a plurality of positioning plates and sliding plates are arranged in the sand blasting direction, a connecting pipe is a threaded hose, angle deviation and telescopic actions can be achieved, the workpieces with different contours can be effectively and comprehensively cleaned, and the cleaning efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of sandblasting cleaning, in particular to a dust-free sandblasting cleaning processing head. Background Art

[0002] Sandblasting cleaning uses compressed air as the power to form a high-speed jet beam to spray the material (copper ore sand, quartz sand, corundum, iron sand, Hainan sand) at high speed onto the surface of the workpiece to be processed, so that the appearance or shape of the outer surface of the workpiece changes. Due to the impact and cutting action of the abrasive on the workpiece surface, a violent impact occurs between the hard spray material and the oxide scale or waste coating on the workpiece surface, causing the oxide scale or surface coating to break from the substrate, and then the broken oxide scale or coating is separated from the substrate by compressed air or subsequent spraying, so that the surface of the workpiece obtains a certain degree of cleanliness and different degrees of roughness.

[0003] Sandblasting cleaning has certain requirements on the sandblasting angle. For the cleaning of curved workpieces, it is currently carried out by manual area cleaning. Complex curved areas require multi-angle adjustment of the cleaning head for multiple cleanings. The sandblasting efficiency is low and intelligent and efficient processing cannot be achieved. It can be seen from the existing sandblasting cleaning technology that the nozzle of the cleaning device is often prone to blockage, which causes great inconvenience to the cleaning process. Therefore, a cleaning processing head is needed that can adapt to the cleaning of workpieces with different contours and can automatically clear the blockage of the nozzle. Summary of the invention

[0004] The present invention is proposed in view of the problems existing in the above-mentioned dust-free sandblasting cleaning processing head.

[0005] Therefore, the problem to be solved by the present invention is how to adapt to different workpieces and realize the automatic clearing function.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a dust-free sandblasting cleaning processing head of the following form, which includes a cleaning component, including a conveying member arranged inside a sealed chamber, and a nozzle connected to the conveying member through a connecting pipe; a brush is arranged on the surface of the sealed chamber to form a seal with the workpiece, and a plurality of positioning plates and a slide plate are arranged along the sandblasting direction; the connecting pipe is a threaded hose, which can realize angle offset and telescopic action; a control component, including a measuring instrument arranged on the outer surface of the sealed chamber, and a driving member for controlling the action of the connecting pipe, the spacing between every two nozzles is controlled by an electric push rod, the driving member is arranged on the slide plate, and the two ends of the electric push rod are fixedly connected to the slide plate.

[0007] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, the conveying member includes a sand inlet pipe and a recovery pipe, the sand inlet pipe is connected to the connecting pipe, the recovery pipe extends to the outside from the side wall of the sealed chamber, and the recovery pipe recovers the waste into the sealed chamber by suction.

[0008] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, a piston is arranged on the side wall of the nozzle, and the end of the piston extends all the way to the outside of the nozzle, and the end of the piston is provided with a top plate sliding on the end of the piston, and the top plate is connected to the positioning plate through a first spring, and the piston controls the sliding of the top plate, and a sliding column and an auxiliary arm are also arranged on the top plate, and a first magnet is arranged at the end of the auxiliary arm.

[0009] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, the nozzle is also provided with a movable hole on the same side wall as the piston, a nozzle is provided in the movable hole, a sealing tube is wrapped outside the nozzle head, and the sealing tube extends from the inside of the nozzle to the outside of the nozzle.

[0010] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, a rotatable main rod is arranged on the outer wall of the sealing tube, the main rod is rotatably connected to the positioning plate, one end of the main rod is fixedly connected to the nozzle head, and the other end is provided with a power socket, the power socket is embedded and matched with the power plug on the positioning plate, and the operation of the nozzle head is controlled by turning on and off the power of the power socket.

[0011] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, a slide groove is arranged on the outer wall of the main rod, the last section of the slide groove is arranged as a horizontal groove, and the other sections are curved grooves, and the slide column is slidably matched with the slide groove.

[0012] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, the nozzle is also provided with a fixed pile on the same side wall as the piston, a sealing cushion is provided at the end of the fixed pile, and two sections of telescopic plates are provided on the top of the fixed pile, and a hammer pile connected to the fixed pile through a second spring is provided in the fixed pile, a second magnet that is attracted to the first magnet is provided at one end of the hammer pile, a collision bead is also provided inside the hammer pile, a resist pile is provided on the hammer pile, and the resist pile is located between the two sections of the telescopic plates.

[0013] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, the nozzle further comprises a guide sleeve arranged at the end, and the inner wall of the guide sleeve is further provided with a guide groove.

[0014] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, the driving member includes a lifting motor connected to the sealed chamber and a lifting rod controlled by the lifting motor.

[0015] As a preferred solution of the dust-free sandblasting cleaning processing head of the present invention, the driving member further includes a swing motor connected to the lifting rod and a clamping sleeve controlled by the swing motor, and the clamping sleeve is clamped and connected to the connecting pipe.

[0016] The beneficial effects of the present invention are as follows: through the cooperation of various components, it is effectively possible to carry out all-round cleaning of workpieces with different contours, greatly improving the cleaning efficiency. At the same time, it can also automatically clear blockages when blockages occur, thereby improving the overall convenience and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0018] Figure 1 This is a scene diagram of the dust-free sandblasting cleaning process head.

[0019] Figure 2 Schematic diagram of the action of the dust-free sandblasting cleaning processing head in various forms.

[0020] Figure 3 A cross-sectional view of a dust-free sandblasting cleaning processing head according to the present invention.

[0021] Figure 4 for Figure 3 Enlarged view of point M in the middle.

[0022] Figure 5 The nozzle structure diagram of the dust-free sandblasting cleaning processing head is shown in FIG.

[0023] Figure 6 An exploded view of the nozzle of a dust-free sandblasting cleaning processing head.

[0024] Figure 7 for Figure 6 Enlarged view of point N in the middle.

[0025] Figure 8 A cross-sectional view of the nozzle of a dust-free sandblasting cleaning processing head.

[0026] Fig. 9 for Figure 8 Enlarged view of the middle U.

[0027] Fig.10 for Fig. 9 Enlarged view of point L in the middle. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments, either individually or selectively.

[0031] Example 1

[0032] Reference Figure 1 and Figure 2 , which is the first embodiment of the present invention, and this embodiment provides a dust-free sandblasting cleaning processing head of the following form. The dust-free sandblasting cleaning processing head of the following form includes a cleaning component 100 and a control component 200. While the basic sandblasting cleaning function is achieved through the setting of the cleaning component 100, it can also automatically clear the blockage when the nozzle 104 is blocked, and the setting of the control component 200 can automatically adjust the height, angle and spacing of the nozzle 104 according to the contour of the workpiece.

[0033] Specifically, the cleaning assembly 100 includes a conveying member 102 disposed inside a sealed chamber 101, and a nozzle 104 connected to the conveying member 102 via a connecting pipe 103;

[0034] Assuming that the number of nozzles 104 is N, the range of action of a single sandblasting is m, and the maximum outline size of the sandblasting area is L, then the value of N should be the minimum integer of L / m;

[0035] The surface of the sealed chamber 101 is provided with a brush 105 that forms a seal with the workpiece, and a plurality of positioning plates Q and a slide plate 106 are provided along the sandblasting direction;

[0036] The connecting tube 103 is a threaded hose that can achieve angle offset and telescopic action. It should be noted that in normal operation, the control of the connecting tube 103 is relatively subtle, so the connecting tube 103 can fully adapt to the angle, height and spacing adjustment required by the working environment.

[0037] Preferably, the control component 200 includes a measuring instrument 201 arranged on the outer surface of the sealed chamber 101, and a driving member 202 for controlling the movement of the connecting tube 103. The spacing between every two nozzles 104 is controlled by an electric push rod 203. The driving member 202 is arranged on the slide 106, and both ends of the electric push rod 203 are fixedly connected to the slide 106. The measuring instrument 201 can adopt a related model of the LSA series, which is mainly used to realize a preliminary contour scan of the workpiece, and then transmit the signal to the driving member 202 and the electric push rod 203 after calculation to adjust the angle, height and spacing.

[0038] from Figure 2 From the perspective of the sandblasting effective range, the measured contour curve is divided into equal distances. Here, the division is based on the contour curve distance to obtain N+1 segmentation points P i (i=0,.....,N); N represents the number of nozzles 104;

[0039] Starting from P0, calculate the normal azimuth θ of the center point of the contour curve between two adjacent points i (i=0,.....,N), that is, the azimuth angle corresponding to P0 and P1 is θ0, and so on. Calculate the deflection angle based on the obtained azimuth angle. When the processing starts, the deflection motor is in the initial position, and calculate the initial deflection angle R i =90-θ i (i=0,.....,N), deflection angle R during processing i =θ i -R pre , where R pre Indicates the previous deflection angle value;

[0040] like Figure 2 , starting from P0, calculate the height h of the center point of the contour curve between two adjacent points i With the reference height value H i The height of the sandblasting unit module is adjusted according to the difference (i=0, ..., N), and the reference height is the center height of the curved surface height as the reference height;

[0041] Starting from P0, calculate the distance k between the center points of the contour curve of two adjacent points i Distance from the center point of the reference F iThe difference is used to adjust the spacing of the sandblasting unit modules. Among them, the reference center is calculated with equal spacing of the horizontal contour curve, (i=0,.....,N);

[0042] The data obtained through the above calculation steps are gradually transmitted to the driving member 202 and the electric push rod 203, so that the angle, height and spacing offset actions are automatically realized during the cleaning process. Through such a design, the defects of the steps of teaching or programming the cleaning trajectory before the traditional curved area processing are overcome, the time loss of measurement and adjustment is reduced, and the overall cleaning efficiency is improved;

[0043] At the same time, since the nozzle 104 is adjusted in real time according to the contour of the workpiece, it is possible to effectively clean the curved surface area during the cleaning process, which greatly improves the cleaning efficiency compared to the method of multiple cleaning in different areas.

[0044] Since the outer contour of the cleaning area is measured in real time, even if the outer contour of the area changes during the processing, the change can be detected through measurement, and the angle of each connecting pipe 103 can be adjusted in real time without affecting the cleaning processing effect.

[0045] Example 2

[0046] Reference Figures 2 to 10 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment.

[0047] Specifically, the conveying member 102 includes a sand inlet pipe and a recovery pipe 102a. The sand inlet pipe is connected to the connecting pipe 103. The recovery pipe 102a extends to the outside from the side wall of the sealed chamber 101, and the recovery pipe 102a recovers the waste into the sealed chamber 101 by suction. The sealed chamber 101 is equipped with a vacuum pump, which is connected to the recovery pipe 102a, thereby realizing waste recovery.

[0048] Preferably, a piston 104a is provided on the side wall of the nozzle 104, and the end of the piston 104a extends all the way to the outside of the nozzle 104, and a top plate 104b sliding on the end of the piston 104a is provided at the end of the piston 104a, and the top plate 104b is connected to the positioning plate Q through a first spring 104c. The piston 104a controls the sliding of the top plate 104b, and a sliding column 104b-1 and an auxiliary arm 104b-2 are also provided on the top plate 104b, and a first magnet 104b-3 is provided at the end of the auxiliary arm 104b-2.

[0049] Preferably, the nozzle 104 is further provided with a movable hole 104d on the same side wall as the piston 104a, and a nozzle 104e is provided in the movable hole 104d. The nozzle 104e is wrapped with a sealing tube 104f, and the sealing tube 104f extends from the inside of the nozzle 104 to the outside of the nozzle 104.

[0050] Preferably, a rotatable main rod 104g is provided on the outer wall of the sealing tube 104f, and the main rod 104g is rotatably connected to the positioning plate Q. One end of the main rod 104g is fixedly connected to the nozzle 104e, and the other end is provided with a power socket W, which is embedded and matched with the power socket R on the positioning plate Q, and the operation of the nozzle 104e is controlled by turning the power on and off of the power socket W.

[0051] Preferably, a slide groove 104g-1 is provided on the outer wall of the main rod 104g, the last section of the slide groove 104g-1 is set as a horizontal groove, and the other sections are curved grooves, and the slide column 104b-1 is slidably matched with the slide groove 104g-1.

[0052] Preferably, the nozzle 104 is also provided with a fixed pile 104h on the same side wall as the piston 104a, a sealing cushion 104h-1 is provided at the end of the fixed pile 104h, and two telescopic plates 104h-2 are provided on the top of the fixed pile 104h, and a hammer pile 104h-4 connected to the fixed pile 104h through a second spring 104h-3 is provided in the fixed pile 104h, a second magnet 104h-5 that is mutually adsorbed with the first magnet 104b-3 is provided at one end of the hammer pile 104h-4, a collision bead Y is also provided inside the hammer pile 104h-4, a resist pile 104h-6 is provided on the hammer pile 104h-4, and the resist pile 104h-6 is located between the two telescopic plates 104h-2, and the adsorption force between the first magnet 104b-3 and the second magnet 104h-5 is greater than the resilience of the second spring 104h-3.

[0053] Preferably, the nozzle 104 also includes a guide sleeve 104i arranged at the end, and the inner wall of the guide sleeve 104i is also provided with a guide groove 104i-1. The setting of the guide groove 104i-1 can reduce the adhesion of sand on the inner wall of the sleeve during sandblasting. The inner surface of the guide groove 104i-1 can be coated to ensure smoothness and improve hardness.

[0054] Preferably, the driving member 202 includes a lifting motor 202a connected to the sealed chamber 101 and a lifting rod 202b controlled by the lifting motor 202a. The lifting motor 202a can be of model YZE132.

[0055] Preferably, the driving member 202 further comprises a swing motor 202c connected to the lifting rod 202b and a clamping sleeve 202d controlled by the swing motor 202c. The clamping sleeve 202d is clamped and connected to the connecting pipe 103. The swing motor 202c may be of model 5IK90GU-CF.

[0056] When in use, when a blockage occurs, the internal pressure of the nozzle 104 will gradually rise, and then gradually push the piston 104a to slide out of the nozzle 104, and after the piston 104a slides to the end, it will hit the top plate 104b, so that the top plate 104b is also gradually pushed, and in this process the first spring 104c will be gradually compressed;

[0057] As the top plate 104b moves, the slide column 104b-1 will gradually slide on the slide groove 104g-1. Since the main rod 104g is rotatably connected to the positioning plate Q, as the slide column 104b-1 slides, the main rod 104g will rotate with the jet head 104e. When the slide column 104b-1 slides to the horizontal section in the slide groove 104g-1, the jet head 104e has rotated an angle, and the jet direction of the jet head 104e is opposite to the sandblasting direction. At this time, the slide column 104b-1 continues to slide and will move the main rod 104g toward the inside of the positioning plate Q, and will begin to contact and compress the return spring T. Since the power socket W rotates to the corresponding position of the plug head R during the early rotation, the power socket W will be embedded with the plug head R during the movement of the main rod 104g to complete the power supply, thereby performing high-pressure jetting on the blocked area.

[0058] At the same time, the auxiliary arm 104b-2 will also start to move with the movement of the top plate 104b. Since the first magnet 104b-3 and the second magnet 104h-5 are attracted to each other in the initial stage, when the auxiliary arm 104b-2 moves, it will pull the second magnet 104h-5 to slide together, that is, pull the hammer pile 104h-4 to slide. In this process, the telescopic plates 104h-2 at both ends will automatically move with the movement of the hammer pile 104h-4, thereby effectively preventing leakage. Sand flows in, and when the hammer pile 104h-4 is pulled to the inner wall of the nozzle 104, the first magnet 104b-3 is separated from the second magnet 104h-5, and under the rebound action of the second spring 104h-3, the hammer pile 104h-4 will break through the sealing cushion 104h-1 to the blockage. At the same time, with the action of inertia, the impact ball Y inside the hammer pile 104h-4 will continuously impact the inner wall of the hammer pile 104h-4, so that the hammer pile 104h-4 can further clear the blockage by vibration after being embedded in the blockage;

[0059] After the unblocking is completed, as the pressure gradually recovers, the piston 104a will gradually return to its original position under the action of both the pressure and the first spring 104c, and the top plate 104b will also gradually return to its initial position. The slide column 104b-1 returns to its original path on the slide groove 104g-1, so the reset spring T rebounds, separating the socket W from the plug R to cut off the power, and at the same time causing the main rod 104g to gradually rotate to its original position.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A dust-free sandblasting cleaning processing head of the following type, characterized in that: include, A cleaning assembly (100) comprises a conveying member (102) disposed inside a sealed chamber (101), and a spray pipe (104) connected to the conveying member (102) via a connecting pipe (103); The surface of the sealed chamber (101) is provided with a brush (105) that forms a seal with the workpiece, and a plurality of positioning plates (Q) and a slide plate (106) are provided along the sandblasting direction; The connecting pipe (103) is a threaded hose, which can achieve angle deviation and telescopic action; A control assembly (200) comprises a measuring instrument (201) arranged on the outer surface of the sealed chamber (101), and a driving member (202) for controlling the movement of the connecting pipe (103), wherein the distance between each two nozzles (104) is controlled by an electric push rod (203), the driving member (202) is arranged on the slide plate (106), and both ends of the electric push rod (203) are fixedly connected to the slide plate (106).

2. The dust-free sandblasting cleaning head according to claim 1, characterized in that: The conveying member (102) comprises a sand inlet pipe and a recovery pipe (102a), wherein the sand inlet pipe is in communication with the connecting pipe (103), the recovery pipe (102a) extends out from the side wall of the sealed chamber (101), and the recovery pipe (102a) recovers waste materials into the sealed chamber (101) by suction.

3. The dust-free sandblasting cleaning head according to claim 2, characterized in that: A piston (104a) is arranged on the side wall of the nozzle (104), and the end of the piston (104a) extends all the way to the outside of the nozzle (104); a top plate (104b) sliding on the end of the piston (104a) is arranged at the end of the piston (104a); the top plate (104b) is connected to the positioning plate (Q) via a first spring (104c); the piston (104a) controls the sliding of the top plate (104b); a sliding column (104b-1) and an auxiliary arm (104b-2) are also arranged on the top plate (104b); and a first magnet (104b-3) is arranged at the end of the auxiliary arm (104b-2).

4. The dust-free sandblasting cleaning head according to claim 3, characterized in that: The nozzle (104) is also provided with a movable hole (104d) on the same side wall as the piston (104a), a nozzle (104e) is provided in the movable hole (104d), and a sealing tube (104f) is wrapped around the nozzle head (104e), and the sealing tube (104f) extends from the inside of the nozzle (104) to the outside of the nozzle (104).

5. The dust-free sandblasting cleaning head according to claim 4, characterized in that: A rotatable main rod (104g) is arranged on the outer wall of the sealing tube (104f), and the main rod (104g) is rotatably connected to the positioning plate (Q). One end of the main rod (104g) is fixedly connected to the nozzle (104e), and the other end is provided with a power socket (W). The power socket (W) is embedded and matched with the power plug (R) on the positioning plate (Q), and the operation of the nozzle (104e) is controlled by turning on and off the power of the power socket (W). A reset spring (T) is also arranged in the positioning plate (Q).

6. The dust-free sandblasting cleaning head according to claim 5, characterized in that: A slide groove (104g-1) is arranged on the outer wall of the main rod (104g), the last section of the slide groove (104g-1) is arranged as a horizontal groove, and the other sections are curved grooves, and the slide column (104b-1) is slidably matched with the slide groove (104g-1).

7. The dust-free sandblasting cleaning head according to claim 6, characterized in that: The nozzle (104) is also provided with a fixed pile (104h) on the same side wall as the piston (104a), a sealing cushion (104h-1) is provided at the end of the fixed pile (104h), two sections of telescopic plates (104h-2) are provided at the top of the fixed pile (104h), and a hammer connected to the fixed pile (104h) through a second spring (104h-3) is provided in the fixed pile (104h). A pile driving device (104h-4), wherein one end of the hammer pile (104h-4) is provided with a second magnet (104h-5) which is attracted to the first magnet (104b-3), a collision bead (Y) is also provided inside the hammer pile (104h-4), and an abutment pile (104h-6) is provided on the hammer pile (104h-4), and the abutment pile (104h-6) is located between two sections of the telescopic plates (104h-2).

8. The dust-free sandblasting cleaning head according to claim 7, characterized in that: The nozzle (104) further comprises a guide sleeve (104i) arranged at the end, and the inner wall of the guide sleeve (104i) is further provided with a guide groove (104i-1).

9. The dust-free sandblasting cleaning head according to claim 8, characterized in that: The driving member (202) comprises a lifting motor (202a) connected to the sealed chamber (101) and a lifting rod (202b) controlled by the lifting motor (202a).

10. The dust-free sandblasting cleaning head according to claim 9, characterized in that: The driving member (202) further comprises a swing motor (202c) connected to the lifting rod (202b) and a clamping sleeve (202d) controlled by the swing motor (202c), wherein the clamping sleeve (202d) is clamped and connected to the connecting pipe (103).

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