Automatic sand blasting cleaning device and process for pipe fittings

Abstract

The application discloses a pipe automatic sand blasting cleaning device and process, which is applied to the technical field of pipe automatic sand blasting cleaning device and has the technical scheme as follows: a base is provided; two ends of the base are symmetrically fixed with clamping and conveying components for clamping and conveying two ends of the pipe; surface cleaning components for polishing and cleaning the surface of the pipe, spiral groove cleaning components for polishing and cleaning the spiral groove side wall and groove bottom of the pipe, and gap groove cleaning components for polishing and cleaning the gap groove of the pipe are sequentially arranged on the base along the conveying direction of the pipe; the gap groove cleaning components are movably connected to the base based on a synchronous component to realize synchronous movement with the pipe; and at least one set of filtering and sucking components for sucking the sand cleaned from the pipe is arranged on the base, so that the pipe has the technical effects of simple structure and good polishing effect.

Description

Technical Field

[0001] This invention relates to the technical field of automatic sandblasting and cleaning devices for pipe fittings, and particularly to an automatic sandblasting and cleaning device and process for pipe fittings. Background Technology

[0002] As attached Figure 1 The part shown is a heat sink used in a large computer cooling system. It has heat sinks distributed along a spiral direction with gaps between them to increase the heat dissipation area. During its processing, it needs to be sandblasted to improve its oxidation and corrosion resistance. After sandblasting, the abrasive particles in the gaps need to be cleaned to avoid affecting the heat dissipation effect. Traditionally, it is usually sanded manually, which is inefficient and also makes it easy to overlook the sanding of corners, resulting in poor sanding effect.

[0003] Currently, Chinese invention with announcement number CN114083422A discloses an automatic ball screw polishing machine, including a polishing device, and a feeding component and a discharging component disposed at both ends thereon. The polishing device is equipped with a dust suction component; the discharging component is equipped with an anti-static mechanism. The polishing device includes a base, a guiding device, a polishing body and an adjusting device, and the aforementioned guiding device is installed on the base.

[0004] Existing inventions use a motor to drive a polishing wheel to polish ball screws. Simultaneously, the motor, through a rotating component, allows the polishing wheel to rotate freely left and right, adjusting the polishing head's rotation angle according to the ball screw's helix angle. This ensures the polishing wheel's angle matches the ball screw's helix angle. However, existing inventions are only suitable for polishing shaft parts with smooth, groove-free surfaces. They are unsuitable for shaft parts with many gaps requiring deep grinding, resulting in poor polishing and cleaning effects, thus necessitating improvement. Summary of the Invention

[0005] The primary objective of this invention is to provide an automatic sandblasting and cleaning device for pipe fittings, which has the advantages of simple structure and good sanding effect.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: an automatic sandblasting and cleaning device for pipe fittings, including a base; the base is symmetrically fixed at both ends with clamping and conveying assemblies for clamping both ends of the pipe fittings and driving the pipe fittings to be conveyed; the base is provided sequentially along the conveying direction of the pipe fittings with a surface cleaning assembly for grinding and cleaning the surface of the pipe fittings, a spiral groove cleaning assembly for grinding and cleaning the spiral groove sidewalls and bottom of the pipe fittings, and a gap groove cleaning assembly for grinding and cleaning the gap grooves of the pipe fittings; the gap groove cleaning assembly is movably connected to the base based on a synchronization assembly to achieve synchronous movement with the pipe fittings; the base is also provided with at least one set of filtering and suction assemblies for suctioning the sand particles cleaned from the pipe fittings.

[0007] The present invention is further configured such that: the clamping and conveying assembly includes a conveying seat fixedly connected to the base and a sliding seat slidably connected to the conveying seat along the conveying direction of the pipe; a lead screw slide for driving the sliding seat to slide is fixedly connected to the conveying seat; a rotating jaw for clamping the end of the pipe and driving the pipe to rotate is fixedly connected to the sliding seat; and a plurality of support and positioning components for supporting and positioning the pipe are provided on the conveying seat near the base.

[0008] The present invention is further configured such that: the support positioning component includes a support base fixedly connected to the conveying seat and support rollers symmetrically rotatably connected to both ends of the support base along the conveying direction of the pipe, for supporting both ends of the bottom of the pipe, wherein the axis of the support rollers is parallel to the conveying direction of the pipe.

[0009] The present invention is further configured such that: the surface cleaning assembly includes a first fixed seat fixedly connected to the base and an installation groove opened on the first fixed seat and coinciding with the axis of the pipe fitting; an annular grinding disc is coaxially provided in the installation groove; and a clamping fixing disc for pressing and fixing the annular grinding disc into the installation groove is fixedly provided on the first fixed seat based on a locking bolt.

[0010] The present invention is further configured such that: the spiral groove cleaning assembly includes a second fixed base fixedly connected to the base and a first cleaning motor fixedly connected to the second fixed base; a first cleaning and polishing disc parallel to the cross-section of the spiral groove is fixedly provided on the rotating shaft of the first cleaning motor; the spiral groove cleaning assembly is provided in at least 3 sets, which are staggered on both sides of the pipe along the conveying direction.

[0011] The invention is further configured such that: the gap cleaning assembly includes a third fixed seat slidably connected to the base along the pipe conveying direction based on a sliding assembly, and an annular mounting seat rotatably connected within the third fixed seat. The annular mounting seat has a plurality of airtight grooves evenly spaced along the circumferential or spiral direction. A sliding mounting block is slidably connected within each airtight groove. A sealing gasket is fixedly mounted at one end of the sliding mounting block within the airtight groove, and a second cleaning motor is fixedly mounted at the other end. A second cleaning and polishing disc with its center plane passing through the center of the annular mounting seat is fixedly mounted on the rotating shaft of the second cleaning motor. The plurality of airtight grooves are connected by a connecting pipe. The annular mounting seat is respectively provided with an extraction pipe and an inflation pipe connected to the connecting pipe. A vacuum pump and an inflation pump are respectively externally connected to the extraction pipe and the inflation pipe.

[0012] The present invention is further configured such that: the synchronization component includes a first synchronization gear coaxially fixedly connected to the annular mounting base and a synchronization drive motor fixedly connected to the third fixed base; a second synchronization gear cooperating with the first synchronization gear is fixedly connected to the rotating shaft of the synchronization drive motor; the number of teeth between the first synchronization gear and the second synchronization gear is not less than 2:1; the sliding component includes a slide rail fixedly connected to the base along the pipe conveying direction; the third fixed base is slidably connected to the slide rail; and a sliding electric cylinder is fixedly provided on the base to drive the third fixed base to slide on the slide rail.

[0013] The present invention is further configured such that: the pipe fitting has N gap grooves within a period range, and the annular mounting seat has no more than N / 2 of the airtight sliding grooves.

[0014] The present invention is further configured such that: the filtering and suction assembly includes a suction hood fixedly connected to the bottom of the base and a suction fan fixedly connected to the bottom of the suction hood, and the suction hood is provided with at least one layer of filter screen.

[0015] The second objective of this invention is to provide an automatic sandblasting and cleaning process for pipe fittings, which has the advantages of simple structure and good grinding effect.

[0016] The above-mentioned technical objective of this invention is achieved through the following technical solution: an automatic sandblasting and cleaning process for pipe fittings, using an automatic sandblasting and cleaning device for pipe fittings as described in any of the above technical solutions; comprising:

[0017] Step 1: The clamping and conveying assembly clamps both ends of the pipe fitting and drives the pipe fitting to rotate at a uniform speed and convey it.

[0018] Step 2: The pipe fittings pass through the surface cleaning component and the spiral groove cleaning component in sequence to polish and clean the surface and spiral groove of the pipe fittings.

[0019] Step 3: Finally, the gap groove of the pipe fitting is cleaned by the gap groove cleaning component. During the gap groove cleaning process, the synchronization component drives the gap groove cleaning component to rotate synchronously with the pipe fitting and slide on the base to achieve relative stillness between the gap groove cleaning component and the pipe fitting.

[0020] Step 4: The sand and impurities washed off fall onto the base and are then absorbed and filtered by the filter suction component.

[0021] In summary, the present invention has the following beneficial effects:

[0022] 1. The clamping and conveying assemblies at both ends of the base clamp and fix the two ends of the pipe fitting, driving the pipe fitting to rotate and be conveyed at a uniform speed. The pipe fitting first passes through the surface cleaning assembly and the spiral groove cleaning assembly in sequence, and slides along with the rotation of the pipe fitting to achieve grinding and cleaning of the surface of the pipe fitting, the side walls of the spiral groove, and the bottom of the groove. Then the pipe fitting passes through the gap groove cleaning assembly. The gap groove cleaning assembly achieves synchronous rotation and synchronous sliding with the pipe fitting based on the synchronization assembly and the sliding assembly, respectively. The gap groove cleaning assembly has several airtight grooves evenly opened in the annular mounting base along the circumferential or spiral direction, and the sliding mounting block is slidably connected in the airtight grooves. The airtight chutes are connected by connecting pipes. The airtight chutes are inflated or deflated by vacuum pumps and air pumps, which drives the sliding installation block to slide in the airtight chutes. This indirectly drives the second cleaning and grinding disc to move in and out of the gap groove, thereby grinding and cleaning the side walls and bottom of the gap groove. The sand particles cleaned by grinding are absorbed by the filter and absorption component and removed from the surface of the pipe fitting. Through the surface cleaning component, spiral groove cleaning component and gap groove cleaning component, the spiral groove and gap groove on the surface of the pipe fitting are completely cleaned, ensuring the grinding and cleaning effect, avoiding the need for manual grinding and improving grinding efficiency.

[0023] 2. The gap cleaning assembly achieves synchronous rotation and synchronous sliding with the pipe fitting based on a synchronization component and a sliding component, respectively. The synchronization component drives the second synchronization gear to rotate via a synchronous drive motor, which in turn drives the first synchronization gear to rotate, which in turn drives the annular mounting seat to rotate. The rotation speed of the annular mounting seat is equal to the rotation speed of the pipe fitting, thus achieving relative stillness between the pipe fitting and the gap cleaning assembly. Since there are many gap grooves in one spiral cycle of the pipe fitting, the annular mounting seat is equipped with no more than N / 2 airtight sliding grooves to achieve multiple grinding of the gap grooves in one spiral cycle. Since the pipe fitting is synchronously conveyed during rotation, the sliding component is set to drive the gap cleaning assembly to slide synchronously, thereby ensuring the grinding and cleaning effect. Attached Figure Description

[0024] Figure 1 This is a structural schematic diagram of the pipe fitting in this embodiment;

[0025] Figure 2 This is a cross-sectional view of the overall structure of this embodiment;

[0026] Figure 3 yes Figure 2 Enlarged schematic diagram of part A;

[0027] Figure 4 yes Figure 2 Enlarged diagram of part B;

[0028] Figure 5 yes Figure 2 Enlarged schematic diagram of part C;

[0029] Figure 6 This is a cross-sectional view of the support and positioning component in this embodiment;

[0030] Figure 7 This is a structural cross-sectional view of the gap groove cleaning assembly in this embodiment.

[0031] Reference numerals: 1. Base; 2. Clamping and conveying assembly; 21. Conveying seat; 22. Sliding seat; 23. Screw slide; 24. Rotating gripper; 25. Support and positioning assembly; 251. Support seat; 252. Support roller; 3. Surface cleaning assembly; 31. First fixed seat; 32. Mounting groove; 33. Annular grinding disc; 34. Locking bolt; 35. Pressing and fixing disc; 4. Spiral groove cleaning assembly; 41. Second fixed seat; 42. First cleaning motor; 43. First cleaning and grinding disc; 5. Gap groove cleaning assembly; 51. 52. Third fixed seat; 53. Annular mounting seat; 54. Airtight sliding groove; 55. Sliding mounting block; 56. Sealing gasket; 57. Second cleaning motor; 58. Second cleaning and polishing disc; 59. Connecting pipe; 50. Sliding assembly; 51. Slide rail; 592. Sliding electric cylinder; 6. Synchronization assembly; 61. First synchronous gear; 62. Synchronous drive motor; 63. Second synchronous gear; 7. Filter suction assembly; 71. Suction hood; 72. Suction fan; 73. Filter screen; 8. Pipe fitting; 81. Spiral groove; 82. Gap groove. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] Example 1:

[0034] refer to Figures 1 to 7An automatic sandblasting and cleaning device for pipe fittings includes a base 1. A clamping and conveying assembly 2 is symmetrically fixed at both ends of the base 1 for clamping both ends of the pipe fitting 8 and driving the pipe fitting 8 to be conveyed. On the base 1, along the conveying direction of the pipe fitting 8, there are sequentially arranged a surface cleaning assembly 3 for grinding and cleaning the surface of the pipe fitting 8, a spiral groove cleaning assembly 4 for grinding and cleaning the side wall and bottom of the spiral groove 81 of the pipe fitting 8, and a gap groove cleaning assembly 5 for grinding and cleaning the gap groove 82 of the pipe fitting 8. The gap groove cleaning assembly 5 is movably connected to the base 1 based on a synchronization assembly 6 to achieve synchronous movement with the pipe fitting 8. At least one set of filter suction assembly 7 is also provided on the base 1 for suctioning the sand particles cleaned from the pipe fitting 8.

[0035] refer to Figure 2 and Figure 3 Specifically, the clamping and conveying assembly 2 includes a conveying seat 21 fixedly connected to the base 1 and a sliding seat 22 slidably connected to the conveying seat 21 along the conveying direction of the pipe fitting 8. A screw slide 23 for driving the sliding seat 22 to slide is fixedly connected to the conveying seat 21. A rotating jaw 24 for clamping the end of the pipe fitting 8 and driving the pipe fitting 8 to rotate is fixedly connected to the sliding seat 22. By rotating and clamping both ends of the pipe fitting 8, and by driving the sliding seat 22 and the rotating jaw 24 fixedly connected to the sliding seat 22 to slide through the screw slide 23, the pipe fitting 8 is driven to rotate and convey. On the base 1, a plurality of support and positioning components 25 are provided near the base 1 for supporting and positioning the pipe fitting 8. The support and positioning components 25 include a support base 251 fixedly connected to the conveying base 21 and support rollers 252 symmetrically rotatably connected to both ends of the support base 251 along the conveying direction of the pipe fitting 8 for supporting the bottom ends of the pipe fitting 8. The axis of the support rollers 252 is parallel to the conveying direction of the pipe fitting 8. The symmetrically arranged support rollers 252 support the pipe fitting 8 to ensure the stability of the pipe fitting 8 during the conveying process. At the same time, the rotatable support rollers 252 improve the rotational stability of the pipe fitting 8.

[0036] refer to Figure 2 and Figure 4Specifically, the surface cleaning assembly 3 includes a first fixed seat 31 fixedly connected to the base 1 and a mounting groove 32 opened on the first fixed seat 31 and coinciding with the axis of the pipe 8. An annular grinding disc 33 is coaxially arranged in the mounting groove 32. The inner diameter of the annular grinding disc 33 is equal to the diameter of the pipe 8, thereby achieving grinding of the surface of the pipe 8. A clamping fixing plate 35 for pressing and fixing the annular grinding disc 33 in the mounting groove 32 is fixedly provided on the first fixed seat 31 by locking bolts 34. When it is necessary to replace the annular grinding disc 33, the clamping fixing plate 35 is removed to remove the annular grinding disc 33 from the mounting groove 32 and replace it with a new annular grinding disc 33. After installation, the clamping fixing plate 35 is used to press and fix the annular grinding disc 33 in the mounting groove 32 to achieve fixation, making replacement convenient.

[0037] refer to Figure 2 Specifically, the spiral groove cleaning assembly 4 includes a second fixed base 41 fixedly connected to the base 1 and a first cleaning motor 42 fixedly connected to the second fixed base 41. A first cleaning and polishing disc 43 parallel to the cross-section of the spiral groove 81 is fixedly mounted on the rotating shaft of the first cleaning motor 42. The first cleaning motor 42 drives the first cleaning and polishing disc 43 to rotate, thereby polishing and cleaning the spiral groove 81 of the pipe 8. At the same time, as the pipe 8 rotates and is conveyed, the first cleaning and polishing disc 43 can clean the spiral groove 81 on the pipe 8 as a whole. In this embodiment, the spiral groove cleaning assembly 4 is provided with at least 3 sets, which are staggered on both sides of the pipe 8 along the conveying direction, thereby further ensuring the polishing and cleaning effect of the spiral groove 81.

[0038] refer to Figure 5 and Figure 7Specifically, the gap cleaning assembly 5 includes a third fixed seat 51 slidably connected to the base 1 along the conveying direction of the pipe fitting 8 based on the sliding assembly 59, and an annular mounting seat 52 rotatably connected within the third fixed seat 51. A plurality of airtight sliding grooves 53 are evenly spaced along the circumferential or spiral direction within the annular mounting seat 52. The arrangement of the airtight sliding grooves 53 is based on the arrangement of the heat sinks on the pipe fitting 8. A sliding mounting block 54 is slidably connected within the airtight sliding groove 53. A sealing gasket 55 is fixedly provided at one end of the sliding mounting block 54 within the airtight sliding groove 53 to ensure sealing, and a second cleaning motor 56 is fixedly provided at the other end. A mounting plate is fixedly mounted on the rotating shaft of the second cleaning motor 56. A second cleaning and polishing disc 57 with its center surface passing through the center of the annular mounting base 52 is provided. Several airtight sliding grooves 53 are connected by a connecting pipe 58. The annular mounting base 52 is provided with an air extraction pipe and an air filling pipe connected to the connecting pipe 58. The air extraction pipe and the air filling pipe are respectively connected to a vacuum pump and an air filling pump. By inflating or deflating the airtight sliding grooves 53 through the vacuum pump and the air filling pump, the sliding mounting block 54 is driven to slide in the airtight sliding groove 53, thereby indirectly driving the second cleaning and polishing disc 57 to enter and exit the gap groove 82, thereby polishing and cleaning the side wall and bottom of the gap groove 82. The sand particles that are polished and cleaned are absorbed by the filter and absorption component 7 and thus detached from the surface of the pipe fitting 8.

[0039] refer to Figure 2 and Figure 5Specifically, the synchronization component 6 includes a first synchronization gear 61 coaxially fixedly connected to the annular mounting base 52 and a synchronization drive motor 62 fixedly connected to the third fixed base 51. A second synchronization gear 63, which cooperates with the first synchronization gear 61, is fixedly connected to the rotating shaft of the synchronization drive motor 62. The ratio of teeth between the first synchronization gear 61 and the second synchronization gear 63 is not less than 2:1, preferably 3:1. The synchronization component 6 drives the second synchronization gear 63 to rotate through the synchronization drive motor 62, thereby driving the first synchronization gear 61 to rotate, and then driving the annular mounting base 52 to rotate. The rotational speed of the annular mounting base 52 is equal to the rotational speed of the pipe 8, thereby achieving relative stillness between the pipe 8 and the gap groove cleaning component 5. At the same time, the synchronization component 6 can also adjust the relative position between the gap groove cleaning component 5 and the pipe 8 to ensure that the second cleaning and polishing disc 57 can smoothly and sequentially enter the gap groove 82. The sliding assembly 59 includes a slide rail 591 fixedly connected to the base 1 along the conveying direction of the pipe 8, a third fixed seat 51 slidably connected to the slide rail 591, and a sliding electric cylinder 592 fixedly provided on the base 1 to drive the third fixed seat 51 to slide on the slide rail 591. The pipe 8 has N gap grooves 82 within one cycle. The annular mounting seat 52 has no more than N / 2 airtight sliding grooves 53. The number of airtight sliding grooves 53 needs to be an integer multiple of the number of gap grooves 82 within one spiral cycle. Since the number of gap grooves 82 on the pipe 8 within one spiral cycle is relatively large, by setting no more than N / 2 airtight sliding grooves 53 within the annular mounting seat 52, the gap grooves 82 within one spiral cycle can be polished multiple times. Since the pipe 8 is conveyed synchronously during rotation, the sliding assembly 59 is set to drive the gap groove cleaning assembly 5 to slide synchronously, thereby ensuring the polishing and cleaning effect.

[0040] refer to Figure 2 Specifically, the filter and suction assembly 7 includes a suction hood 71 fixedly connected to the bottom of the base 1 and a suction fan 72 fixedly connected to the bottom of the suction hood 71. At least one layer of filter screen 73 is provided inside the suction hood 71. The sand particles that have been polished and cleaned are absorbed by the filter and suction assembly 7, thereby detaching from the surface of the pipe fitting 8 and being filtered by the filter screen 73, thus preventing sand particles from remaining on the surface of the pipe fitting 8.

[0041] Example 2:

[0042] The automatic sandblasting cleaning process for pipe fittings 8 utilizes the automatic sandblasting cleaning device for pipe fittings as shown in the embodiment, including:

[0043] Step 1: The clamping and conveying assembly 2 clamps both ends of the pipe fitting 8 and drives the pipe fitting 8 to rotate at a uniform speed and convey it.

[0044] Step 2: The pipe fitting 8 passes through the surface cleaning assembly 3 and the spiral groove 81 cleaning assembly in sequence to polish and clean the surface of the pipe fitting 8 and the spiral groove 81.

[0045] Step 3: Finally, the gap groove 82 of the pipe fitting 8 is cleaned by the gap groove cleaning assembly 5. During the cleaning process of the gap groove 82, the synchronization assembly 6 drives the gap groove cleaning assembly 5 to rotate synchronously with the pipe fitting 8 and slide on the base 1, thereby achieving relative stillness between the gap groove cleaning assembly 5 and the pipe fitting 8.

[0046] Step 4: The sand and impurities washed off fall onto the base 1 and are absorbed and filtered by the filter suction component 7.

[0047] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make inventive modifications to this embodiment as needed, but as long as they are within the scope of the claims of the present invention, they are protected by patent law.

Claims

1. An automatic sandblasting and cleaning device for pipe fittings, comprising a base (1); characterized in that, The base (1) is symmetrically fixed at both ends with clamping and conveying components (2) for clamping the two ends of the pipe fitting (8) and driving the pipe fitting (8) to be conveyed. The base (1) is provided with a surface cleaning component (3) for grinding and cleaning the surface of the pipe fitting (8), a spiral groove cleaning component (4) for grinding and cleaning the side wall and bottom of the spiral groove (81) of the pipe fitting (8), and a gap groove cleaning component (5) for grinding and cleaning the gap groove (82) of the pipe fitting (8) in sequence along the conveying direction of the pipe fitting (8). The gap groove cleaning component (5) is movably connected to the base (1) based on the synchronization component (6) to achieve synchronous movement with the pipe fitting (8). The base (1) is also provided with at least one set of filter suction components (7) for suctioning the sand particles washed off the pipe fitting (8). The surface cleaning assembly (3) includes a first fixed seat (31) fixedly connected to the base (1) and a mounting groove (32) opened on the first fixed seat (31) and coincident with the axis of the pipe (8). An annular grinding disc (33) is coaxially provided in the mounting groove (32). A clamping fixing disc (35) for pressing and fixing the annular grinding disc (33) into the mounting groove (32) is fixedly provided on the first fixed seat (31) based on the locking bolt (34). The spiral groove cleaning assembly (4) includes a second fixed base (41) fixedly connected to the base (1) and a first cleaning motor (42) fixedly connected to the second fixed base (41). A first cleaning and polishing disc (43) parallel to the cross-section of the spiral groove (81) is fixedly provided on the rotating shaft of the first cleaning motor (42). The spiral groove cleaning assembly (4) has at least 3 sets, which are staggered on both sides of the pipe (8) along the conveying direction. The gap cleaning assembly (5) includes a third fixed seat (51) slidably connected to the base (1) based on the sliding assembly (59) along the conveying direction of the pipe (8), and an annular mounting seat (52) rotatably connected within the third fixed seat (51). The annular mounting seat (52) has several airtight grooves (53) evenly spaced along the circumferential or spiral direction. A sliding mounting block (54) is slidably connected within each airtight groove (53). The sliding mounting block (54) is located within one of the airtight grooves (53). One end is fixed with a sealing gasket (55), and the other end is fixed with a second cleaning motor (56). The rotating shaft of the second cleaning motor (56) is fixed with a second cleaning and polishing disc (57) whose center plane passes through the center of the annular mounting base (52). A plurality of airtight sliding grooves (53) are connected by a connecting pipe (58). The annular mounting base (52) is respectively provided with an air extraction pipe and an air filling pipe connected to the connecting pipe (58). The air extraction pipe and the air filling pipe are respectively externally connected to a vacuum pump and an air filling pump.

2. The automatic sandblasting and cleaning device for pipe fittings according to claim 1, characterized in that, The clamping and conveying assembly (2) includes a conveying seat (21) fixedly connected to the base (1) and a sliding seat (22) slidably connected to the conveying seat (21) along the conveying direction of the pipe (8). A screw slide (23) for driving the sliding seat (22) to slide is fixedly connected to the conveying seat (21). A rotating jaw (24) for clamping the end of the pipe (8) and driving the pipe (8) to rotate is fixedly connected to the sliding seat (22). A plurality of support and positioning assemblies (25) for supporting and positioning the pipe (8) are provided on the conveying seat (21) near the base (1).

3. The automatic sandblasting and cleaning device for pipe fittings according to claim 2, characterized in that, The support positioning assembly (25) includes a support base (251) fixedly connected to the conveying seat (21) and support rollers (252) symmetrically rotatably connected to both ends of the support base (251) along the conveying direction of the pipe (8) for supporting the bottom ends of the pipe (8). The axis of the support rollers (252) is parallel to the conveying direction of the pipe (8).

4. The automatic sandblasting and cleaning device for pipe fittings according to claim 1, characterized in that, The synchronization component (6) includes a first synchronization gear (61) coaxially fixedly connected to the annular mounting base (52) and a synchronization drive motor (62) fixedly connected to the third fixed base (51). A second synchronization gear (63) cooperating with the first synchronization gear (61) is fixedly connected to the rotation shaft of the synchronization drive motor (62). The number of teeth between the first synchronization gear (61) and the second synchronization gear (63) is not less than 2:

1. The sliding component (59) includes a slide rail (591) fixedly connected to the base (1) along the conveying direction of the pipe (8). The third fixed base (51) is slidably connected to the slide rail (591). A sliding electric cylinder (592) is fixedly provided on the base (1) to drive the third fixed base (51) to slide on the slide rail (591).

5. The automatic sandblasting and cleaning device for pipe fittings according to claim 4, characterized in that, The fitting (8) has N gap grooves (82) within a period range, and the annular mounting base (52) has no more than N / 2 of the airtight sliding grooves (53).

6. The automatic sandblasting and cleaning device for pipe fittings according to claim 1, characterized in that, The filter and suction assembly (7) includes a suction hood (71) fixedly connected to the bottom of the base (1) and a suction fan (72) fixedly connected to the bottom of the suction hood (71). The suction hood (71) is provided with at least one layer of filter screen (73).

7. An automatic sandblasting and cleaning process for pipe fittings, using the automatic sandblasting and cleaning device for pipe fittings as described in any one of claims 1-6; characterized in that, include: Step 1: Clamping and conveying assembly (2) clamps both ends of pipe fitting (8) and drives pipe fitting (8) to rotate at a constant speed and convey it; Step 2: The pipe fitting (8) passes through the surface cleaning assembly (3) and the spiral groove cleaning assembly (4) in sequence to polish and clean the surface of the pipe fitting (8) and the spiral groove (81); Step 3: Finally, the gap groove (82) of the pipe fitting (8) is cleaned by the gap groove cleaning assembly (5). During the cleaning process of the gap groove (82), the synchronization assembly (6) drives the gap groove cleaning assembly (5) to rotate synchronously with the pipe fitting (8). The sliding assembly (59) drives the gap groove cleaning assembly (5) to slide synchronously with the pipe fitting (8), thereby achieving relative stillness between the gap groove cleaning assembly (5) and the pipe fitting (8). Step 4: The sand particles and impurities that have been washed off fall onto the base (1) and are absorbed and filtered by the filter suction component (7).

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