Stainless steel pipe inner and outer wall surface treatment equipment

Abstract

The invention discloses stainless steel pipe inner and outer wall surface treatment equipment, and relates to the technical field of steel pipe grinding. By designing the combination of the clamping part and the polishing sand pool, synchronous polishing of the inner wall and the outer wall of the stainless steel pipe is achieved. The driving motor drives the stainless steel pipe to rotate in the grinding sand pool, so that the inner wall and the outer wall move relatively in static grinding sand, the grinding efficiency is effectively improved, and the time and the labor cost required by traditional manual or step-by-step grinding are reduced; and the combination of the cleaning tank and the sand discharging system is designed, so that the grinding sand deposited in the cleaning process can be sent back into the grinding sand tank again through the sand discharging screw rod and the recovery sand guide pipe. By means of the cyclic utilization mode of the grinding sand, material waste is reduced, the production cost is reduced, and meanwhile the problem that the grinding effect is not uniform due to the fact that the grinding sand is insufficient is solved. And the clamping part is arranged, so that stainless steel pipes with different diameters can be clamped, the application range of the equipment is expanded, and the universality and practicability of the equipment are improved.

Description

Technical Field

[0001] The invention relates to the technical field of steel pipe grinding, in particular to equipment for treating the inner and outer wall surfaces of a stainless steel pipe. Background Art

[0002] In the prior art, the inner and outer walls of stainless steel pipes are usually polished by hand-held polishing tools or special polishing machines. This method has many problems such as low efficiency, high cost and unstable quality. During manual polishing, the polishing effect is often uneven due to the different operating levels and experience of workers. At the same time, the existing automated polishing equipment can often only process the outer wall or the inner wall of the stainless steel pipe, and cannot do both at the same time. In addition, after the stainless steel pipe is polished, the polishing sand remaining on the surface of the stainless steel pipe is cleaned. The cleaned polishing sand cannot be effectively recycled, resulting in serious waste of materials. Summary of the invention

[0003] In order to overcome the defects of the above-mentioned prior art, the present invention provides the following technical solutions: a surface treatment device for the inner and outer walls of stainless steel pipes, comprising a sand pool, a column is fixed on the outer wall of the sand pool, two vertical and parallel guide sliding rods are fixedly installed on the top of the column, a transmission belt is rotatably installed between the top of the guide sliding rod and the column, a sliding sleeve on the guide sliding rod is provided with a drive motor bracket, a drive motor is movably provided on the drive motor bracket, and a clamping part is fixedly installed on the output shaft of the drive motor for fixing the stainless steel pipe; it also includes a cleaning pool, the inner wall of the cleaning pool is provided with an inclined support net, and clean water is provided inside the cleaning pool, and an ultrasonic vibration module is provided on the support net for cleaning the polished stainless steel pipe.

[0004] Preferably, a drive motor frame is mounted on the drive motor, the drive motor frame is fixed to the outer casing of the drive motor, the drive motor frame is rotationally matched with the output shaft of the drive motor, the drive motor frame is movably mounted on the drive motor bracket, and an adjusting electric cylinder is also movably mounted on the drive motor bracket, the telescopic rod end of the adjusting electric cylinder is movably matched with the drive motor frame to adjust the angle of the drive motor frame on the drive motor bracket.

[0005] Preferably, the clamping part includes a clamping shell fixed to the output shaft of the driving motor, an electromagnet is fixedly embedded on the top of the clamping shell, an intermediate support beam is fixed to the middle part of the inner wall of the clamping shell, and an intermediate partition is fixed to the middle and lower part of the inner wall of the clamping shell, wherein a gearbox is fixed on the intermediate support beam, a clamping gear is fixed on the input shaft of the gearbox, and a rack is also installed on the intermediate support beam along the axial sliding direction of the clamping shell, and the rack is meshed with the clamping gear for transmission.

[0006] Preferably, a magnetic block that cooperates with the magnetic force of the electromagnet is fixedly installed on the top of the rack, and a spring steel plate is provided on the lower surface of the middle partition. The outer ring of the spring steel plate is fixedly matched with the middle partition, and the inner center of the spring steel plate is fixed to the output shaft of the gearbox; a tension spring is fixed between the bottom end of the rack and the middle partition, and the tension spring and the spring steel plate play the same role.

[0007] Preferably, a bottom sliding disk is fixed to the bottom end of the clamping shell, three sliding rail grooves are provided on the bottom sliding disk, a clamping head is slidably installed in each sliding rail groove, a sliding pin is fixed on each clamping head, a rotating clamping disk is rotatably installed on the upper surface of the bottom sliding disk, an inclined sliding groove is provided on the rotating clamping disk, the sliding groove and the sliding pin are slidably matched, wherein the rotating clamping disk is fixedly matched with the center of the clockwork steel plate.

[0008] Preferably, the cleaning pool and the sand pool are both fixed on the construction platform, and a storage trough is also fixed on the construction platform through a support rod frame. A pushing electric cylinder is fixed on the outer wall of the storage trough. The bottom of the storage trough is opened, and the opening is made of soft rubber material for supporting the stainless steel pipe inside the storage trough. A pushing rod is fixed on the telescopic rod of the pushing electric cylinder for pushing out the stainless steel pipe inside the storage trough.

[0009] Preferably, a swing hinge plate bracket is also fixed obliquely on the support rod frame, one end of the swing hinge plate bracket extends into the cleaning pool, and two symmetrically arranged swing hinge plates are elastically and rotatably installed on the inner side of the swing hinge plate bracket through torsion springs.

[0010] Preferably, a sand discharge port is provided at the bottom of the cleaning pool, and a sand discharge screw is rotatably mounted at the sand discharge port and the bottom of the inner wall of the cleaning pool, and the sand discharge screw is driven by a sand discharge motor fixed to the outer wall of the cleaning pool.

[0011] Preferably, a funnel mouth is fixedly connected to the sand discharge port, and the funnel mouth is connected to the top of the sand pool through a recovery sand guide pipe. A lifting motor for driving the transmission belt to rotate is fixedly installed on the column, and one side of the transmission belt is fixed to the driving motor bracket.

[0012] Compared with the prior art, the present invention has the following beneficial effects: (1) The present invention realizes synchronous grinding of the inner and outer walls of the stainless steel pipe by designing a combination of a clamping part and a grinding sand pool. The driving motor drives the stainless steel pipe to rotate in the grinding sand pool, so that the inner and outer walls move relative to each other in the static grinding sand, thereby effectively improving the grinding efficiency and reducing the time and labor costs required for traditional manual or step-by-step grinding; (2) The present invention designs a combination of a cleaning pool and a sand discharge system, which can return the grinding sand deposited during the cleaning process to the grinding sand pool through the sand discharge screw and the recovery sand guide pipe. This recycling method of grinding sand not only reduces material waste, but also reduces production costs, while avoiding the problem of uneven grinding effect caused by insufficient grinding sand; (3) The clamping part provided in the present invention can clamp stainless steel pipes of different diameters, expand the application range of the equipment, and improve the versatility and practicality of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0014] Figure 2 It is a structural schematic diagram of the swing hinge plate of the present invention.

[0015] Figure 3 It is a structural schematic diagram of the support network of the present invention.

[0016] Figure 4 This is a structural schematic diagram of the guide sliding rod of the present invention.

[0017] Figure 5 It is a schematic diagram of the structure of the clamping part of the present invention.

[0018] Figure 6 It is a schematic diagram of the sliding chute structure of the present invention.

[0019] In the figure: 101-sand pool; 102-column; 103-guide sliding rod; 104-lifting motor; 105-transmission belt; 106-drive motor bracket; 107-adjusting electric cylinder; 108-drive motor sleeve; 109-drive motor; 110-clamping shell; 111-electromagnet; 112-magnetic block; 113-rack; 114-clamping gear; 115-gearbox; 116-spring steel plate; 117-rotating clamping disk; 118-sliding inclined slot; 119-middle partition; 120 -middle support beam; 121-tension spring; 122-bottom sliding plate; 123-clamping head; 124-slide rail groove; 125-sliding pin; 126-sand recovery pipe; 127-funnel mouth; 128-sand discharge port; 129-sand discharge screw; 130-sand discharge motor; 131-cleaning pool; 132-support net; 133-swing hinge plate bracket; 134-swing hinge plate; 135-storage trough; 136-push rod; 137-push electric cylinder; 138-support rod frame; 139-construction table. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-6 , and further illustrate the technical solution of the present invention through specific implementation methods.

[0021] The present invention provides a surface treatment device for the inner and outer walls of a stainless steel pipe, comprising a sand pool 101, a column 102 is fixed on the outer wall of the sand pool 101, two guide sliding rods 103 arranged vertically and parallel to each other are fixedly installed on the top of the column 102, a transmission belt 105 is rotatably installed between the top of the guide sliding rod 103 and the column 102, a driving motor bracket 106 is slidably sleeved on the guide sliding rod 103, a driving motor 109 is movably arranged on the driving motor bracket 106, a clamping part is fixedly installed on the output shaft of the driving motor 109 for fixing the stainless steel pipe; and a cleaning pool 131 is also included, the inner wall of the cleaning pool 131 is provided with an inclined supporting net 132, and clean water is arranged inside the cleaning pool 131, and an ultrasonic vibration module is arranged on the supporting net 132 for cleaning the polished stainless steel pipe. A drive motor bracket 108 is sleeved on the drive motor 109, and the drive motor bracket 108 is fixed to the outer shell of the drive motor 109, and the drive motor bracket 108 is rotationally matched with the output shaft of the drive motor 109. The drive motor bracket 108 is movably installed on the drive motor bracket 106, and an adjusting electric cylinder 107 is also movably installed on the drive motor bracket 106. The telescopic rod end of the adjusting electric cylinder 107 is movably matched with the drive motor bracket 108 to adjust the angle of the drive motor bracket 108 on the drive motor bracket 106.

[0022] The clamping part includes a clamping shell 110 fixed to the output shaft of the driving motor 109, an electromagnet 111 is fixedly embedded on the top of the clamping shell 110, an intermediate support beam 120 is fixed to the middle part of the inner wall of the clamping shell 110, and an intermediate partition 119 is fixed to the middle and lower part of the inner wall of the clamping shell 110, wherein a gearbox 115 is fixed on the intermediate support beam 120, a clamping gear 114 is fixed on the input shaft of the gearbox 115, and a rack 113 is also installed on the intermediate support beam 120 to slide along the axial direction of the clamping shell 110, and the rack 113 is meshed with the clamping gear 114 for transmission.

[0023] A magnetic block 112 that cooperates with the magnetic force of the electromagnet 111 is fixedly installed on the top of the rack 113, and a spring steel plate 116 is provided on the lower surface of the middle partition 119. The outer ring of the spring steel plate 116 is fixedly matched with the middle partition 119, and the inner center of the spring steel plate 116 is fixed to the output shaft of the gearbox 115; a tension spring 121 is fixed between the bottom end of the rack 113 and the middle partition 119, and the tension spring 121 and the spring steel plate 116 play the same role. A bottom sliding disk 122 is fixed to the bottom end of the clamping shell 110, and three sliding rail grooves 124 are opened on the bottom sliding disk 122. A clamping head 123 is slidably installed in each sliding rail groove 124, and a sliding pin 125 is fixed on each clamping head 123. A rotating clamping disk 117 is rotatably installed on the upper surface of the bottom sliding disk 122, and an inclined sliding groove 118 is opened on the rotating clamping disk 117. The sliding groove 118 is slidably matched with the sliding pin 125, and the rotating clamping disk 117 is fixedly matched with the center of the clockwork steel plate 116.

[0024] The cleaning pool 131 and the sand pool 101 are both fixed on the construction platform 139. The construction platform 139 is also fixed with a material storage tank 135 overhead through a support rod frame 138. A material pusher cylinder 137 is fixed on the outer wall of the material storage tank 135. The bottom of the material storage tank 135 is set with an opening, and the opening is made of soft rubber material to support the stainless steel pipe inside the material storage tank 135. A material pusher rod 136 is fixed on the telescopic rod of the material pusher cylinder 137 to push out the stainless steel pipe inside the material storage tank 135. A swing hinge plate bracket 133 is also fixed obliquely on the support rod frame 138. One end of the swing hinge plate bracket 133 extends to the inside of the cleaning pool 131. Two symmetrically arranged swing hinge plates 134 are also installed on the inner side of the swing hinge plate bracket 133 elastically and rotatably through a torsion spring. A sand discharge port 128 is provided at the bottom of the cleaning pool 131, and a sand discharge screw 129 is rotatably installed at the sand discharge port 128 and the bottom of the inner wall of the cleaning pool 131, and the sand discharge screw 129 is driven by a sand discharge motor 130 fixed to the outer wall of the cleaning pool 131. A funnel mouth 127 is fixedly connected to the sand discharge port 128, and the funnel mouth 127 is connected to the top of the sand pool 101 through a recovery sand guide pipe 126. A lifting motor 104 for driving the transmission belt 105 to rotate is fixedly installed on the column 102, and one side of the transmission belt 105 is fixed to the drive motor bracket 106.

[0025] The working principle of the stainless steel pipe inner and outer wall surface treatment equipment disclosed in the present invention is as follows: the stainless steel pipe to be processed is placed in the storage tank 135, and then the pushing electric cylinder 137 is controlled, and the telescopic rod of the pushing electric cylinder 137 drives the pushing rod 136 to enter the storage tank 135, and then the stainless steel pipe inside the storage tank 135 is pushed out, and at this time, the lifting motor 104 is controlled, and the lifting motor 104 drives the transmission belt 105 to rotate, and the transmission belt 105 drives the driving motor bracket 106 to slide on the guide sliding rod 103, and at this time, the driving motor bracket 106 is moved to the same height as the pushing rod 136, and then the telescopic rod of the adjustment electric cylinder 107 is controlled to drive the output shaft of the driving motor 109 to be coaxial with the stainless steel pipe (and cooperate with the lifting motor 104 for adjustment), and then the stainless steel pipe inside the storage tank 135 is continued to be pushed to move, so that One end of the stainless steel pipe is inserted into the middle of the three clamping heads 123. Before that, the electromagnet 111 needs to be started. The electromagnet 111 generates magnetic force to attract the magnetic block 112. The magnetic block 112 drives the rack 113 to move toward the electromagnet 111 (the tension spring 121 is stretched). At this time, the rack 113 will drive the clamping gear 114 to rotate, and the clamping gear 114 drives the input shaft of the gearbox 115 to rotate. The output shaft of the gearbox 115 will drive the center of the spring steel plate 116 and the rotating clamping disk 117 to rotate at the same time. The rotation of the center of the spring steel plate 116 will be subjected to force, and the rotation of the rotating clamping disk 117 will drive the sliding bevel 118 to rotate. The rotation of the sliding bevel 118 will drive the clamping head 123 to slide in the slide rail groove 124 through the sliding pin 125. At this time, all the clamping heads 123 are kept away from each other to facilitate the entry of the stainless steel pipe. When the stainless steel pipe enters, the electromagnet 111 can be de-energized. Under the elastic force of the spring steel plate 116 and the tension spring 121, the rack 113 and the rotating clamping disk 117 return to their initial positions. At the same time, the sliding bevel 118 drives the three clamping heads 123 to move toward the stainless steel pipe through the sliding pin 125. At this time, the three clamping heads 123 will clamp and fix the stainless steel pipe.

[0026] Then, the telescopic rod of the electric cylinder 107 is controlled and adjusted so that the output shaft of the driving motor 109 swings to a vertical position (the stainless steel tube will be separated from the soft rubber material of the bottom opening of the material storage tank 135, overcoming the supporting force of the rubber). This process will cause the stainless steel tube to pass through the two swing hinge plates 134 (overcoming the elastic force of the torsion spring provided at the movable connection between the swing hinge plate 134 and the swing hinge plate bracket 133), and then the lifting motor 104 is controlled to move the stainless steel tube downward and insert the stainless steel tube into the sandblasting inside the sand pool 101. At this time, there will also be sandblasting inside the stainless steel tube (because the two ends of the stainless steel tube are open, when moving downward, the sandblasting will enter the bottom opening). Then, the driving motor 109 is started, and the output shaft of the driving motor 109 drives the stainless steel tube to rotate through the clamping part. Since the sandblasting inside the sand pool 101 is in a stationary state, the rotation of the stainless steel tube will produce relative displacement with the sandblasting, thereby achieving simultaneous polishing of the inner and outer walls of the stainless steel tube.

[0027] Then, the lifting motor 104 is controlled to pull the stainless steel pipe out of the sand in the sand pool 101, and then the adjusting electric cylinder 107 is controlled to control the stainless steel pipe to swing so that the stainless steel pipe passes through the two swing hinge plates 134 (overcoming the elastic force of the torsion spring at the connection between the swing hinge plate 134 and the swing hinge plate bracket 133). Then, the electromagnet 111 is energized to separate the stainless steel pipe from the clamping head 123. Under the action of gravity, the stainless steel pipe slides on the swing hinge plate 134 (the weight of the stainless steel pipe itself cannot overcome the elastic force of the torsion spring at the connection between the swing hinge plate bracket 133 and the swing hinge plate bracket 133). The swing hinge plate 134 can support the stainless steel pipe due to the elastic force of the torsion spring at the connection of the swing hinge plate 134). At this time, the stainless steel pipe will slide along the swing hinge plate 134 and the swing hinge plate bracket 133 to the support net 132 inside the cleaning pool 131. Under the action of the ultrasonic vibrator, the grinding sand attached to the surface of the stainless steel pipe will be shaken off into the water, and then the grinding sand will be deposited at the bottom of the cleaning pool 131. At this time, the stainless steel pipe can be directly removed from the support net 132. At the same time, the above grinding work for the next stainless steel pipe can be repeated.

[0028] As time goes by, more and more grinding sand is deposited inside the cleaning pool 131. At this time, the sand discharge motor 130 is started, and the sand discharge motor 130 will drive the sand discharge screw 129 to rotate. The sand discharge screw 129 rotates to squeeze the deposited grinding sand into the funnel mouth 127, and then returns to the sand pool 101 along the recovery sand guide pipe 126, avoiding the waste of grinding sand.

Claims

1. A stainless steel pipe inner and outer wall surface treatment equipment, characterized in that: The invention comprises a sand pool (101), wherein a column (102) is fixed on the outer wall of the sand pool (101), two guide sliding rods (103) arranged vertically and parallel to each other are fixedly installed on the top of the column (102), a transmission belt (105) is rotatably installed between the top of the guide sliding rod (103) and the column (102), a driving motor bracket (106) is movably provided on the driving motor bracket (106), and a clamping part is fixedly installed on the output shaft of the driving motor (109) for fixing the stainless steel pipe; The clamping portion comprises a clamping shell (110) fixed to the output shaft of the driving motor (109), an electromagnet (111) is fixedly embedded on the top of the clamping shell (110), an intermediate support beam (120) is fixed to the middle of the inner wall of the clamping shell (110), and an intermediate partition (119) is fixed to the middle and lower part of the inner wall of the clamping shell (110), wherein a gearbox (115) is fixed to the intermediate support beam (120), a clamping gear (114) is fixed to the input shaft of the gearbox (115), and a rack (113) is also slidably mounted on the intermediate support beam (120) along the axial direction of the clamping shell (110), and the rack (113) is meshed with the clamping gear (114) for transmission; It also comprises a cleaning pool (131), the inner wall of the cleaning pool (131) is provided with an inclined support net (132), and clean water is provided inside the cleaning pool (131), and an ultrasonic vibration module is provided on the support net (132) for cleaning the polished stainless steel pipe.

2. The stainless steel pipe inner and outer wall surface treatment equipment according to claim 1, characterized in that: A drive motor frame (108) is sleeved on the drive motor (109), the drive motor frame (108) is fixed to the housing of the drive motor (109), the drive motor frame (108) is rotationally matched with the output shaft of the drive motor (109), the drive motor frame (108) is movably mounted on the drive motor bracket (106), and an adjusting electric cylinder (107) is also movably mounted on the drive motor bracket (106), the telescopic rod end of the adjusting electric cylinder (107) is movably matched with the drive motor frame (108), and is used to adjust the angle of the drive motor frame (108) on the drive motor bracket (106).

3. The equipment for treating inner and outer wall surfaces of a stainless steel pipe according to claim 2, characterized in that: A magnetic block (112) that cooperates with the electromagnet (111) is fixedly mounted on the top of the rack (113); a spring steel plate (116) is disposed on the lower surface of the middle partition (119); the outer ring of the spring steel plate (116) is fixedly matched with the middle partition (119); and the inner center of the spring steel plate (116) is fixed to the output shaft of the gearbox (115); A tension spring (121) is fixed between the bottom end of the rack (113) and the middle partition (119), and the tension spring (121) and the spring steel plate (116) play the same role.

4. The equipment for treating inner and outer wall surfaces of a stainless steel pipe according to claim 3, characterized in that: A bottom sliding disk (122) is fixed at the bottom end of the clamping housing (110), and three slide rail grooves (124) are provided on the bottom sliding disk (122). A clamping head (123) is slidably mounted in each slide rail groove (124), and a sliding pin (125) is fixed on each clamping head (123). A rotating clamping disk (117) is rotatably mounted on the upper surface of the bottom sliding disk (122), and an inclined sliding groove (118) is provided on the rotating clamping disk (117). The sliding groove (118) is slidably matched with the sliding pin (125), wherein the rotating clamping disk (117) is fixedly matched with the center of the clockwork steel plate (116).

5. The equipment for treating inner and outer wall surfaces of a stainless steel pipe according to claim 4, characterized in that: The cleaning pool (131) and the sand pool (101) are both fixed on a construction platform (139). A material storage tank (135) is also fixed on the construction platform (139) via a support rod frame (138). A material pushing electric cylinder (137) is fixed on the outer wall of the material storage tank (135). The bottom of the material storage tank (135) is open. A material pushing rod (136) is fixed on the telescopic rod of the material pushing electric cylinder (137) for pushing out the stainless steel pipe inside the material storage tank (135).

6. The equipment for treating inner and outer wall surfaces of a stainless steel pipe according to claim 5, characterized in that: A swing hinge plate bracket (133) is also tiltedly fixed on the support rod frame (138), one end of the swing hinge plate bracket (133) extends into the interior of the cleaning pool (131), and two symmetrically arranged swing hinge plates (134) are elastically and rotatably mounted on the inner side of the swing hinge plate bracket (133) via torsion springs.

7. The equipment for treating inner and outer wall surfaces of a stainless steel pipe according to claim 6, characterized in that: A sand discharge port (128) is provided at the bottom of the cleaning pool (131), and a sand discharge screw (129) is rotatably mounted on the sand discharge port (128) and the bottom of the inner wall of the cleaning pool (131). The sand discharge screw (129) is driven by a sand discharge motor (130) fixed on the outer wall of the cleaning pool (131).

8. The equipment for treating inner and outer wall surfaces of a stainless steel pipe according to claim 7, characterized in that: A funnel mouth (127) is fixedly connected to the sand discharge port (128), and the funnel mouth (127) is connected to the top of the sand pool (101) via a sand recovery guide pipe (126). A lifting motor (104) for driving a transmission belt (105) to rotate is fixedly installed on the column (102), and one side of the transmission belt (105) is fixed to a driving motor bracket (106).

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