Stainless steel pipe cutting device

Abstract

The invention relates to the technical field of stainless steel pipe cutting, in particular to a stainless steel pipe cutting device which comprises a rack, a feeding channel used for allowing a steel pipe to horizontally penetrate through is arranged on the rack, and a rotating sleeve capable of rotating in the circumferential direction of the steel pipe is arranged in the feeding channel. A cutting machine and a grinding machine are oppositely arranged in the rotating sleeve, a driving mechanism used for driving the cutting machine and the grinding machine to move towards the axis of the steel pipe is further arranged in the rotating sleeve, the feeding channel is provided with a feeding port and a discharging port, and fixing mechanisms capable of clamping the steel pipe are arranged at the feeding port and the discharging port correspondingly. The cutting machine and the grinding machine are driven by the rotary sleeve to perform rotary cutting and grinding operation around the stainless steel pipe, so that the device can complete cutting and grinding of the whole steel pipe in a short time, the cutting precision caused by lack of grinding treatment after cutting in a traditional cutting mode is avoided, the cutting surface is smoother, and the perpendicularity is higher.

Description

Technical Field

[0001] The present invention relates to the technical field of stainless steel pipe cutting, and more particularly to a stainless steel pipe cutting device. Background Art

[0002] A stainless steel pipe is a hollow long round steel, mainly widely used in industrial conveying pipelines such as petroleum, chemical industry, medical treatment, food, light industry, mechanical instruments, etc. and mechanical structure components. In addition, when the bending and torsional strength are the same, it is lighter in weight, so it is also widely used in manufacturing mechanical parts and engineering structures. It is usually cut and processed by a cutting device.

[0003] Chinese Patent CN220838176U discloses a stainless steel pipe cutting device, including a working plate. Four corners of the bottom end of the working plate are fixedly provided with supporting legs, a cutting groove is formed on the top surface, and a cutting machine is further installed on the top surface of the working plate. The cutting end of the cutting machine is located in the cutting groove. Two symmetrically distributed guiding grooves are further formed on the top surface of the working plate. Screws are rotatably connected between inner side surfaces of the two guiding grooves, and two second motors for driving the two screws to rotate are installed at the front end of the working plate; through the cooperative use of the gears and the toothed plates provided in the stainless steel pipe cutting device, the mounting plate can be easily installed or disassembled, which is beneficial for the staff to replace clamping plates of different sizes, so that the clamping plates of the device can be replaced according to the diameter of the steel pipe to be cut, thereby facilitating the cutting of steel pipes of different diameters by the device.

[0004] However, the above device only has a single cutting function and lacks the grinding treatment after cutting. After cutting is completed, it is also necessary to manually grind the cutting surface with an additional grinding tool to remove burrs and improve the surface finish. This treatment method not only increases the processing procedures and labor costs, but also reduces the overall processing efficiency. Therefore, there is an urgent need for a stainless steel pipe cutting device that integrates cutting and grinding functions. Summary of the Invention

[0005] In view of the above problems, a stainless steel pipe cutting device is provided. By driving a cutting machine and a grinding machine to rotate around the stainless steel pipe through a rotating sleeve for cutting and grinding operations, the device can complete the cutting and grinding of the entire steel pipe in a short time, avoiding the lack of grinding treatment after cutting in the traditional cutting method, resulting in higher cutting accuracy, making the cutting surface smoother and more perpendicular.

[0006] In order to solve the problems of the prior art, the present invention provides a stainless steel pipe cutting device, including a frame, the frame is provided with a feed channel for steel pipes to pass horizontally, the feed channel is provided with a rotating sleeve that can rotate around the circumferential direction of the steel pipe, the rotating sleeve is relatively provided with a cutter and a grinder, the rotating sleeve is also provided with a driving mechanism for driving the cutter and the grinder to move toward the axis of the steel pipe, the feed channel is provided with an inlet and a outlet, and the inlet and the outlet are both provided with fixing mechanisms that can clamp the steel pipe.

[0007] Preferably, two spaced-apart boxes are provided on the frame, and circular openings are provided on both boxes, through which a feeding channel is formed, a rotating sleeve is provided between the two boxes, the rotating sleeve is coaxial with the circular openings on the two boxes, and cutouts for movement of the cutter and the grinder are provided on both sides of the rotating sleeve, rotating sleeves extending into the circular openings of the two boxes are provided at both ends of the rotating sleeve, the rotating sleeves are rotatably provided in the circular openings of the boxes, and a rotating mechanism capable of driving the rotating sleeve to rotate is provided inside the boxes.

[0008] Preferably, the rotating mechanism includes a worm wheel and a worm, the worm wheel is arranged around the outside of the rotating sleeve, the tooth portion of the worm wheel extends to the inside of the box, and the box is provided with an escape opening on the inner wall of the circular opening for avoiding the worm wheel. The worm is horizontally arranged inside the box, and the worm is meshed with the worm wheel. One end of the worm can be rotatably extended to the outside of the box, and the other end of the worm can be rotatably arranged on one side of the inside of the box. A rotating motor is arranged at the bottom of the frame, and the output end of the rotating motor is transmission-connected to the protruding ends of the worm in the two boxes through a synchronous belt drive mechanism.

[0009] Preferably, the driving mechanism includes a bidirectional motor, a first screw, a second screw and a limiting light rod, a first cavity and a second cavity are symmetrically formed in the rotating sleeve, the bidirectional motor is arranged in the middle position of the first cavity, the first screw and the second screw are arranged on both sides of the bidirectional motor and are respectively connected to the output end of the bidirectional motor, the first screw and the second screw are respectively rotatably connected to the inner wall of the first cavity at one end away from the bidirectional motor, the first screw and the second screw are respectively connected to the first slider and the second slider, one side of the first slider is provided with a first bracket connected to the outside of the cutting machine, one side of the second slider is provided with a second bracket connected to the outside of the grinder, the limiting light rod is arranged in the second cavity, the two ends of the limiting light rod are respectively connected to the inner wall of the second cavity, the axis of the limiting light rod is parallel to the axis of the first screw, the external movable sleeve of the limiting light rod is provided with a third slider and a fourth slider, one side of the third slider is provided with a third bracket connected to the outside of the cutting machine, one side of the fourth slider is provided with a fourth bracket connected to the outside of the grinder, and the rotating sleeve is respectively provided with openings for the first bracket, the second bracket, the third bracket and the fourth bracket to move.

[0010] Preferably, mounting frames are sleeved outside both the cutting machine and the grinding machine. Plug-in plates are provided on the first bracket, the second bracket, the third bracket and the fourth bracket. Plug-in grooves for plugging and mating with the plug-in plates are provided on the mounting frames. Locking screws are inserted into the plug-in plates, and a plurality of threaded holes which are spaced apart and threadedly engaged with the locking screws are provided in the plug-in grooves of the mounting frames.

[0011] Preferably, an annular member is sleeved outside the rotating sleeve. A U-shaped connecting plate is provided at the bottom of one of the two boxes. A rotatable rotating shaft is provided on the U-shaped connecting plate. One end of the rotating shaft extends below the annular member. A roller which is in contact with and rolls on the circumferential surface of the annular member is provided at the extending end of the rotating shaft. A revolution sensor for detecting the number of revolutions of the rotating shaft is also provided on the U-shaped connecting plate.

[0012] Preferably, a horizontally arranged air cylinder is provided at the bottom of one of the two boxes. The output end of the air cylinder is connected with a plug-in column. A plug-in port which is pluggably mated with the plug-in column is provided outside the rotating sleeve.

[0013] Preferably, a shield is coaxially arranged inside the rotating sleeve. Both ends of the shield extend into the interiors of the two rotating sleeves and are respectively connected with the interiors of the two rotating sleeves. A notch for avoiding the movement of the cutting machine and the grinding machine is provided on the shield.

[0014] Preferably, the fixing mechanism includes a lower clamping block and an upper clamping block for clamping the steel pipe;

[0015] The lower clamping block is fixedly arranged at the lower end outside the box. Vertical limiting columns are arranged on both sides of the lower clamping block. The limiting columns extend above the box. A limiting plate is arranged at the upper end outside the box. The limiting plate is connected with the two limiting columns. The upper clamping block is located below the limiting plate, and both sides of the limiting plate are respectively movably sleeved on the two limiting columns. A passive column is vertically arranged at the top of the upper clamping block. One end of the passive column movably penetrates through the limiting plate and extends upward for a certain distance;

[0016] An installation plate is arranged above the rotating sleeve. The top ends of each limiting column are respectively connected with the installation plate. A downward pressing mechanism for driving the passive columns in the two fixing mechanisms to lift simultaneously is arranged on the installation plate.

[0017] Preferably, the downward pressing mechanism includes a hydraulic cylinder and an inverted V-shaped plate;

[0018] The hydraulic cylinder is vertically arranged at the top of the installation plate. The output end of the hydraulic cylinder penetrates through the installation plate and extends below the installation plate;

[0019] The inverted V-shaped plate is arranged at the output end of the hydraulic cylinder. The two sides of the inverted V-shaped plate respectively extend to the positions of two limit posts in each fixing mechanism, and the two sides of the inverted V-shaped plate are respectively sleeved on the two limit posts in each fixing mechanism movably. The two sides of the inverted V-shaped plate are respectively connected to one end of the passive post in each fixing mechanism far away from the corresponding upper clamp block.

[0020] The beneficial effects of the present invention compared with the prior art are as follows:

[0021] 1. In the present invention, the rotating sleeve drives the cutting machine and the grinding machine to rotate around the stainless steel pipe for cutting and grinding operations, enabling the device to complete the cutting and grinding of the entire steel pipe in a short time, avoiding the lack of grinding treatment after cutting in the traditional cutting method, resulting in higher cutting accuracy, making the cutting surface smoother and the perpendicularity higher.

[0022] 2. In the present invention, through the coordinated cooperation of the rotating sleeve and the driving mechanism, the stability of the cutting machine and the grinding machine during movement and rotation is ensured, further improving the stability of the processing process.

[0023] 3. The cutting machine and the grinding machine of the present invention are matched with the installation frame through the plug-in board, making the replacement of the cutting machine and the grinding machine simple and fast, improving the flexibility and use efficiency of the device. Description of the Drawings

[0024] Figure 1 is a three-dimensional structural schematic diagram of a stainless steel pipe cutting device.

[0025] Figure 2 is a top view of a stainless steel pipe cutting device.

[0026] Figure 3 is Figure 2 the cross-sectional view along A-A in

[0027] Figure 4 is Figure 2 the three-dimensional structural cross-sectional view along A-A in

[0028] Figure 5 is Figure 4 the enlarged view at B in

[0029] Figure 6 is Figure 4 the enlarged view at C in

[0030] Figure 7 is a partial cross-sectional view of a stainless steel pipe cutting device.

[0031] Figure 8 is a partial three-dimensional structural schematic diagram of a stainless steel pipe cutting device.

[0032] Figure 9Partial three-dimensional structure schematic of the rotating sleeve of a stainless steel pipe cutting device Figure One 。

[0033] Figure 10 Partial three-dimensional structure schematic of the rotating sleeve of a stainless steel pipe cutting device Figure Two 。

[0034] Figure 11 Is Figure 10 The enlarged view at position D in

[0035] Figure 12 Partial three-dimensional structure schematic diagram of the frame of a stainless steel pipe cutting device.

[0036] The reference numerals in the figure are: 1, frame; 11, feeding channel; 111, inlet; 112, outlet; 12, box body; 121, cylinder; 1211, insertion column; 1212, insertion opening; 2, rotating sleeve; 21, rotating sleeve; 22, annular member; 23, U-shaped connecting plate; 231, rotating shaft; 232, roller; 233, revolution sensor; 24, shield; 241, notch; 3, cutting machine; 4, grinding machine; 5, driving mechanism; 51, bidirectional motor; 52, first screw; 521, first slider; 5211, first bracket; 53, second screw; 531, second slider; 5311, second bracket; 54, limit optical rod; 541, third slider; 5411, third bracket; 542, fourth slider; 5421, fourth bracket; 55, first cavity; 56, second cavity; 57, mounting frame; 571, insertion slot; 572, threaded hole; 58, insertion plate; 581, locking screw; 6, fixing mechanism; 61, lower clamping block; 62, upper clamping block; 63, limit column; 64, limit plate; 65, passive column; 66, mounting plate; 67, downward pressing mechanism; 671, hydraulic cylinder; 672, inverted V-shaped plate; 7, rotating mechanism; 71, worm gear; 72, worm; 73, avoidance opening; 74, rotating motor; 75, synchronous belt drive mechanism. Detailed implementation mode

[0037] To further understand the features, technical means, specific purposes and functions achieved by the present invention, the present invention will be further described in detail below in conjunction with the drawings and specific implementation modes.

[0038] Refer to Figures 1 to 3As shown: A stainless steel pipe cutting device, including a frame 1, on which there is a feeding channel 11 for the steel pipe to pass through horizontally. Inside the feeding channel 11, there is a rotating sleeve 2 that can rotate around the circumferential direction of the steel pipe. Inside the rotating sleeve 2, a cutting machine 3 and a grinding machine 4 are relatively arranged. Inside the rotating sleeve 2, there is also a driving mechanism 5 for driving the cutting machine 3 and the grinding machine 4 to move towards the axis of the steel pipe. The feeding channel 11 is provided with a feeding port 111 and a discharging port 112, and at both the feeding port 111 and the discharging port 112, there is a fixing mechanism 6 that can clamp the steel pipe.

[0039] When using this device, first insert the steel pipe to be cut into the feeding port 111 of the feeding channel 11, and convey the steel pipe to the position of the discharging port 112, ensuring that the part to be processed of the steel pipe is aligned with the working end of the cutting machine 3. Subsequently, clamp the outside of the steel pipe through the fixing mechanism 6 to ensure the stability during the processing.

[0040] The outside of the frame 1 is equipped with a controller. After the steel pipe is clamped by the fixing mechanism 6, through the controller, the working positions of the cutting machine 3 and the grinding machine 4 relative to the steel pipe can be calculated according to the diameter of the steel pipe, ensuring that the cutting machine 3 and the grinding machine 4 can accurately work with steel pipes of different diameters. The controller controls the driving mechanism 5 to work, and the driving mechanism 5 drives the cutting machine 3 and the grinding machine 4 to move towards the steel pipe at the same time, approaching the part to be processed of the steel pipe. The output end of the cutting machine 3 first contacts the steel pipe and performs cutting operations on the specified area. At the same time, the output end of the grinding machine 4 contacts the surface of the steel pipe and performs grinding operations. Then, the rotating sleeve 2 starts to rotate, driving the cutting machine 3 and the grinding machine 4 to rotate around the circumferential direction of the steel pipe. The output end of the cutting machine 3 moves along the circumference of the steel pipe during the rotation, realizing the all-round cutting of the steel pipe. When the cutting machine 3 rotates at least two circles, the cutting operation of the steel pipe is completed. At this time, the relatively arranged grinding machine 4 follows the working trajectory of the cutting machine 3 and performs fine polishing on the freshly cut marks, enabling the device to complete the cutting and grinding of the entire steel pipe in a short time, avoiding the lack of grinding treatment after cutting in the traditional cutting method, resulting in a more flat cutting surface and higher perpendicularity.

[0041] After the cutting and polishing operations are completed, the driving mechanism 5 drives the cutting machine 3 and the grinding machine 4 to reset, and the rotating sleeve 2 simultaneously drives the cutting machine 3 and the grinding machine 4 back to the initial position. Subsequently, the fixing mechanism 6 releases the cut steel pipe, allowing the operator to take out the steel pipe that has completed cutting and polishing.

[0042] Refer to Figure 3As shown: two spaced-apart boxes 12 are arranged on the frame 1, and circular openings are opened on the two boxes 12, and a feed channel 11 is formed through the two circular openings. The rotating sleeve 2 is arranged between the two boxes 12, and the rotating sleeve 2 is coaxial with the circular openings on the two boxes 12. Cutouts for the movement of the cutter 3 and the grinder 4 are arranged on both sides of the rotating sleeve 2. Rotating sleeves 21 extending into the circular openings of the two boxes 12 are respectively arranged at both ends of the rotating sleeve 2. The rotating sleeve 21 is rotatably arranged in the circular opening of the box 12, and a rotating mechanism 7 capable of driving the rotating sleeve 21 to rotate is arranged inside the box 12.

[0043] When it is necessary to drive the cutting machine 3 and the grinding machine 4 to perform a rotating operation, the rotating mechanism 7 is started, driving the rotating sleeve 21 connected thereto to rotate. An annular slider is arranged on the outside of the rotating sleeve 21, and an annular slide rail is arranged on the inner wall of the circular opening of the box body 12. During the rotation of the rotating sleeve 21, the annular slider arranged on the outside of the rotating sleeve 21 cooperates with the annular slide rail on the inner wall of the circular opening of the box body 12 to achieve stable rotation. At the same time, the rotational movement of the rotating sleeve 21 further drives the rotating sleeve 2 to rotate, thereby ensuring that the cutting machine 3 and the grinding machine 4 can perform uniform rotation cutting and grinding operations around the steel pipe, thereby improving the stability and accuracy of the operation.

[0044] Reference Figure 3 , Figure 4 , Figure 5 , Figure 9 and Figure 12 As shown: the rotating mechanism 7 includes a worm wheel 71 and a worm 72. The worm wheel 71 is arranged around the outside of the rotating sleeve 21. The tooth portion of the worm wheel 71 extends to the inside of the box body 12. The box body 12 is provided with an avoidance opening 73 on the inner wall of the circular opening for avoiding the worm wheel 71. The worm 72 is horizontally arranged inside the box body 12. The worm 72 is meshed with the worm wheel 71. One end of the worm 72 can be rotatably extended to the outside of the box body 12, and the other end of the worm 72 can be rotatably arranged on one side of the inside of the box body 12. A rotating motor 74 is arranged at the bottom of the frame 1. The output end of the rotating motor 74 is transmission-connected to the protruding ends of the worm 72 in the two boxes 12 through a synchronous belt transmission mechanism 75.

[0045] When it is necessary to drive the rotating sleeve 2 to rotate, the rotating motor 74 is started, and its power is transmitted to the worm 72 through the synchronous belt transmission mechanism 75, so that the worm 72 starts to rotate. When the worm 72 rotates, it meshes with the worm wheel 71 and drives the worm wheel 71 to rotate. Since the worm wheel 71 is closely matched with the rotating sleeve 21, the rotation of the worm wheel 71 further drives the rotating sleeve 21 to rotate, thereby driving the rotating sleeve 2 to rotate. The rotation of the rotating sleeve 2 enables the cutting machine 3 and the grinder 4 to perform rotary cutting and grinding operations around the stainless steel pipe, thereby realizing an efficient and accurate processing process.

[0046] Referring to Figure 3 、 Figure 7 and Figure 10 as shown: The driving mechanism 5 includes a bidirectional motor 51, a first screw rod 52, a second screw rod 53 and a limiting optical rod 54. A first cavity 55 and a second cavity 56 are symmetrically formed inside the rotating sleeve 2. The bidirectional motor 51 is arranged at the middle position inside the first cavity 55. The first screw rod 52 and the second screw rod 53 are arranged on both sides of the bidirectional motor 51 and are respectively connected to the output ends of the bidirectional motor 51. The ends of the first screw rod 52 and the second screw rod 53 far from the bidirectional motor 51 are respectively rotationally connected to the inner wall of the first cavity 55. A first slider 521 and a second slider 531 are respectively connected to the first screw rod 52 and the second screw rod 53. A first bracket 5211 connected to the outside of the cutting machine 3 is provided on one side of the first slider 521. A second bracket 5311 connected to the outside of the grinding machine 4 is provided on one side of the second slider 531. The limiting optical rod 54 is arranged inside the second cavity 56. The two ends of the limiting optical rod 54 are respectively connected to the inner wall of the second cavity 56. The axis of the limiting optical rod 54 is parallel to the axis of the first screw rod 52. A third slider 541 and a fourth slider 542 are movably sleeved on the outside of the limiting optical rod 54. A third bracket 5411 connected to the outside of the cutting machine 3 is provided on one side of the third slider 541. A fourth bracket 5421 connected to the outside of the grinding machine 4 is provided on one side of the fourth slider 542. Openings for the first bracket 5211, the second bracket 5311, the third bracket 5411 and the fourth bracket 5421 to move are respectively opened on the rotating sleeve 2.

[0047] When the cutting machine 3 and the grinding machine 4 need to be close to the steel pipe, start the bidirectional motor 51. The bidirectional motor 51 drives the first screw rod 52 and the second screw rod 53 to rotate. Among them, the threads on the first screw rod 52 and the second screw rod 53 are set to be reverse. When the first screw rod 52 and the second screw rod 53 rotate simultaneously, the first slider 521 and the second slider 531 will move towards each other. Specifically, the first slider 521 drives the cutting machine 3 to approach the processing position of the steel pipe through the first bracket 5211. At the same time, the second slider 531 drives the grinding machine 4 to approach the processing position of the steel pipe through the second bracket 5311. During the movement of the cutting machine 3 and the grinding machine 4, the connected third slider 541 and fourth slider 542 will move along the limiting optical rod 54, playing a limiting role to ensure the stability of the cutting machine 3 and the grinding machine 4 during the movement.

[0048] Referring to Figure 7 and Figure 11As shown: Installation frames 57 are sleeved outside both the cutting machine 3 and the grinding machine 4. Plug-in plates 58 are provided on the first bracket 5211, the second bracket 5311, the third bracket 5411, and the fourth bracket 5421. Plug-in slots 571 for plugging and mating with the plug-in plates 58 are provided on the installation frame 57. Locking screws 581 are inserted into the plug-in plates 58, and a plurality of threaded holes 572 that are spaced apart and threadedly engaged with the locking screws 581 are provided in the plug-in slots 571 of the installation frame 57.

[0049] When it is necessary to replace the cutting machine 3 or the grinding machine 4, the staff can directly loosen the corresponding locking screws 581, and then pull out the installation frame 57 from the plug-in plate 58, so as to achieve the rapid disassembly of the cutting machine 3 and the grinding machine 4. When it is necessary to install the cutting machine 3 or the grinding machine 4, the plug-in slots 571 on the installation frame 57 should be aligned with the plug-in plates 58 and plugged and mated, so as to achieve the rapid installation of the cutting machine 3 and the grinding machine 4.

[0050] Refer to Figure 5 and Figure 11 As shown: An annular member 22 is sleeved outside the rotating sleeve 2. A U-shaped connecting plate 23 is provided at the bottom of one of the two boxes 12. A rotatable rotating shaft 231 is provided on the U-shaped connecting plate 23. One end of the rotating shaft 231 extends below the annular member 22, and a roller 232 that is in contact with and rolls on the circumferential surface of the annular member 22 is provided at the extended end of the rotating shaft 231. A revolution sensor 233 for detecting the number of revolutions of the rotating shaft 231 is also provided on the U-shaped connecting plate 23.

[0051] The provided annular member 22 can rotate together with the rotating sleeve 2. During the rotation of the annular member 22, the roller 232 attached to it is driven to rotate, and the roller 232 further drives the rotating shaft 231 to rotate. The revolution sensor 233 is responsible for detecting the number of revolutions of the rotating shaft 231 and transmitting the detected data to the controller. The controller calculates the number of revolutions of the rotating sleeve 2 based on the received data. This number of revolutions has a rated value. Once this rated value is reached, the controller will instruct the rotating mechanism 7 to rotate the cutting machine 3 and the grinding machine 4 to the reset state.

[0052] Refer to Figure 6 As shown: A horizontally arranged cylinder 121 is provided at the bottom of one of the two boxes 12. The output end of the cylinder 121 is connected with a plug-in column 1211. A plug-in interface 1212 for plugging and mating with the plug-in column 1211 is provided outside the rotating sleeve 2.

[0053] After the cutting machine 3 and the grinding machine 4 rotate to the reset state, the insertion interface 1212 on the rotating sleeve 2 and the insertion post 1211 on the output end of the cylinder 121 achieve precise docking. Subsequently, the cylinder 121 is started, and the cylinder 121 drives the insertion post 1211 to stably insert into the insertion interface 1212, thereby firmly fixing the rotating sleeve 2, ensuring that the cutting machine 3 and the grinding machine 4 can maintain their initial positions, and effectively preventing shaking during the disassembly process.

[0054] Refer to Figure 4 、 Figure 8 、 Figure 9 and Figure 10 As shown in: A shield 24 is coaxially arranged inside the rotating sleeve 2. Both ends of the shield 24 extend into the interiors of the two rotating sleeves 21 and are respectively connected to the interiors of the two rotating sleeves 21. A notch 241 for avoiding the movement of the cutting machine 3 and the grinding machine 4 is formed on the shield 24.

[0055] The shield 24 is arranged to effectively block the sparks generated during the operation of the cutting machine 3 and the grinding machine 4. Through this shield 24, the splashing of sparks can be prevented, thereby eliminating potential safety hazards that may be caused thereby.

[0056] Refer to Figure 1 、 Figure 3 and Figure 4 As shown in: The fixing mechanism 6 includes a lower clamping block 61 and an upper clamping block 62 for clamping the steel pipe.

[0057] The lower clamping block 61 is fixedly arranged at the lower end of the outer side of the box body 12. Two limiting columns 63 are vertically arranged on both sides of the lower clamping block 61. The limiting columns 63 extend above the box body 12. A limiting plate 64 is arranged at the upper end of the outer side of the box body 12. The limiting plate 64 is connected to the two limiting columns 63. The upper clamping block 62 is located below the limiting plate 64, and both sides of the limiting plate 64 are respectively movably sleeved on the two limiting columns 63. A passive column 65 is vertically arranged at the top of the upper clamping block 62. One end of the passive column 65 movably penetrates through the limiting plate 64 and extends upward for a certain distance.

[0058] An installation plate 66 is arranged above the rotating sleeve 2. The top ends of each limiting column 63 are respectively connected to the installation plate 66. A pressing mechanism 67 for driving the passive columns 65 in the two fixing mechanisms 6 to move up and down simultaneously is arranged on the installation plate 66.

[0059] When it is necessary to fix the steel pipe to be processed, the pressing mechanism 67 is started, and simultaneously drives the passive columns 65 in the two fixing mechanisms 6 to move downward in the vertical direction. The passive columns 65 further drive the upper clamping block 62 to move downward until the lower clamping block 61 and the upper clamping block 62 jointly and firmly fix the steel pipe to be processed. During the movement of the upper clamping block 62, its two sides are limited and moved along the corresponding limiting columns 63, ensuring that the upper clamping block 62 can accurately correspond to the lower clamping block 61 and achieve accurate fixation of the steel pipe.

[0060] Refer to Figure 1 、 Figure 3 and Figure 4 as shown: The pressing mechanism 67 includes a hydraulic cylinder 671 and an inverted V-shaped plate 672;

[0061] The hydraulic cylinder 671 is vertically arranged at the top of the mounting plate 66, and the output end of the hydraulic cylinder 671 penetrates through the mounting plate 66 and extends to the lower side of the mounting plate 66;

[0062] The inverted V-shaped plate 672 is arranged at the output end of the hydraulic cylinder 671. The two sides of the inverted V-shaped plate 672 respectively extend to the positions of the two limit posts 63 in each fixing mechanism 6, and the two sides of the inverted V-shaped plate 672 are respectively movably sleeved on the two limit posts 63 in each fixing mechanism 6. The two sides of the inverted V-shaped plate 672 are respectively connected to one end of the passive post 65 in each fixing mechanism 6 away from the corresponding upper clamping block 62.

[0063] When it is necessary to move each pressing fixture downward, the output end of the hydraulic cylinder 671 drives the inverted V-shaped plate 672 to move downward in the vertical direction. During the movement of the inverted V-shaped plate 672, each passive post 65 is driven to move downward at the same time. To ensure the stability of the downward movement of the inverted V-shaped plate 672 and the passive post 65, the two sides of the inverted V-shaped plate 672 move smoothly along the vertical direction of each limit post 63, so as to ensure the stability and accuracy when the inverted V-shaped plate 672 drives each passive post 65 to move downward.

[0064] The above embodiments only represent one or several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation to the scope of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A stainless steel pipe cutting device, characterized in that, The invention comprises a frame (1), wherein a feed channel (11) is provided on the frame (1) for a steel pipe to pass through horizontally, a rotating sleeve (2) is provided inside the feed channel (11) and can rotate around the circumference of the steel pipe, a cutter (3) and a grinder (4) are relatively provided inside the rotating sleeve (2), and a driving mechanism (5) is also provided inside the rotating sleeve (2) for driving the cutter (3) and the grinder (4) to move toward the axis of the steel pipe, the feed channel (11) is provided with an inlet (111) and an outlet (112), and a fixing mechanism (6) capable of clamping the steel pipe is provided at the inlet (111) and the outlet (112).

2. The stainless steel pipe cutting device according to claim 1, characterized in that, Two boxes (12) are arranged at intervals on the frame (1). The two boxes (12) are both provided with circular openings, and a feeding channel (11) is formed through the two circular openings. A rotating sleeve (2) is arranged between the two boxes (12). The rotating sleeve (2) is coaxial with the circular openings on the two boxes (12). Notches for the movement of a cutting machine (3) and a grinder (4) are arranged on both sides of the rotating sleeve (2). Rotating sleeves (21) extending into the circular openings of the two boxes (12) are respectively arranged at both ends of the rotating sleeve (2). The rotating sleeve (21) is rotatably arranged in the circular opening of the box (12). A rotating mechanism (7) capable of driving the rotating sleeve (21) to rotate is arranged inside the box (12).

3. A stainless steel pipe cutting device according to claim 2, characterized in that, The rotating mechanism (7) comprises a worm wheel (71) and a worm (72). The worm wheel (71) is arranged around the outside of the rotating sleeve (21). The tooth portion of the worm wheel (71) extends to the inside of the box (12). The box (12) is provided with an escape opening (73) on the inner wall of the circular opening for escaping the worm wheel (71). The worm (72) is arranged horizontally inside the box (12). The worm (72) is meshed with the worm wheel (71). One end of the worm (72) can be rotatably extended to the outside of the box (12). The other end of the worm (72) can be rotatably arranged on one side of the inside of the box (12). A rotating motor (74) is arranged at the bottom of the frame (1). The output end of the rotating motor (74) is transmission-connected to the protruding ends of the worm (72) in the two boxes (12) through a synchronous belt transmission mechanism (75).

4. A stainless steel pipe cutting device according to claim 1, characterized in that, The driving mechanism (5) includes a bidirectional motor (51), a first screw rod (52), a second screw rod (53) and a limit optical rod (54). A first cavity (55) and a second cavity (56) are symmetrically formed inside the rotating sleeve (2). The bidirectional motor (51) is arranged at the middle position inside the first cavity (55). The first screw rod (52) and the second screw rod (53) are arranged on both sides of the bidirectional motor (51) and are respectively connected to the output ends of the bidirectional motor (51). The ends of the first screw rod (52) and the second screw rod (53) far away from the bidirectional motor (51) are respectively rotatably connected to the inner wall of the first cavity (55). A first slider (521) and a second slider (531) are respectively connected to the first screw rod (52) and the second screw rod (53). On one side of the first slider (521), there is a first bracket (5211) connected to the outside of the cutting machine (3). On one side of the second slider (531), there is a second bracket (5311) connected to the outside of the grinding machine (4). The limit optical rod (54) is arranged inside the second cavity (56). The two ends of the limit optical rod (54) are respectively connected to the inner wall of the second cavity (56). The axis of the limit optical rod (54) is parallel to the axis of the first screw rod (52). A third slider (541) and a fourth slider (542) are movably sleeved on the outside of the limit optical rod (54). On one side of the third slider (541), there is a third bracket (5411) connected to the outside of the cutting machine (3). On one side of the fourth slider (542), there is a fourth bracket (5421) connected to the outside of the grinding machine (4). Openings for the first bracket (5211), the second bracket (5311), the third bracket (5411) and the fourth bracket (5421) to move are respectively formed on the rotating sleeve (2).

5. A stainless steel pipe cutting device according to claim 4, characterized in that, Mounting frames (57) are sleeved on the outsides of both the cutting machine (3) and the grinding machine (4). Plug-in boards (58) are arranged on the first bracket (5211), the second bracket (5311), the third bracket (5411) and the fourth bracket (5421). Plug-in slots (571) for plugging and mating with the plug-in boards (58) are arranged on the mounting frame (57). Locking screws (581) are inserted into the plug-in boards (58). A plurality of threaded holes (572) which are arranged at intervals and are in threaded cooperation with the locking screws (581) are arranged in the plug-in slots (571) of the mounting frame (57).

6. A stainless steel pipe cutting device according to claim 2, characterized in that, An annular member (22) is sleeved on the outside of the rotating sleeve (2). A U-shaped connecting plate (23) is arranged at the bottom of one of the two boxes (12). A rotatable rotating shaft (231) is arranged on the U-shaped connecting plate (23). One end of the rotating shaft (231) extends below the annular member (22). A roller (232) which is attached to the circumferential surface of the annular member (22) and is in rolling contact with the annular member (22) is arranged at the extended end of the rotating shaft (231). A rotation number sensor (233) for detecting the number of turns of the rotating shaft (231) is also arranged on the U-shaped connecting plate (23).

7. The stainless steel pipe cutting device according to claim 6, characterized in that, One of the two boxes (12) is provided with a horizontally arranged cylinder (121) at the bottom. The output end of the cylinder (121) is connected with a plug post (1211), and an insertion opening (1212) which is in plug-in fit with the plug post (1211) is arranged outside the rotary sleeve (2).

8. The stainless steel pipe cutting device according to claim 2, characterized in that, A baffle (24) is coaxially arranged inside the rotary sleeve (2). Both ends of the baffle (24) extend into the two rotating sleeves (21) and are respectively connected with the inside of the two rotating sleeves (21). A notch (241) for avoiding the movement of the cutting machine (3) and the grinding machine (4) is arranged on the baffle (24).

9. A stainless steel pipe cutting device according to claim 2, characterized in that, The fixing mechanism (6) includes a lower clamping block (61) and an upper clamping block (62) for clamping the steel pipe; The lower clamping block (61) is fixedly arranged at the lower end outside the box (12). Two limiting columns (63) are vertically arranged on both sides of the lower clamping block (61). The limiting columns (63) extend above the box (12). A limiting plate (64) is arranged at the upper end outside the box (12). The limiting plate (64) is connected with the two limiting columns (63). The upper clamping block (62) is located below the limiting plate (64), and both sides of the limiting plate (64) are respectively movably sleeved on the two limiting columns (63). A passive column (65) is vertically arranged at the top of the upper clamping block (62). One end of the passive column (65) movably penetrates through the limiting plate (64) and extends upward for a certain distance; An installation plate (66) is arranged above the rotary sleeve (2). The top ends of each limiting column (63) are respectively connected with the installation plate (66). A downward pressing mechanism (67) for driving the passive columns (65) in the two fixing mechanisms (6) to lift simultaneously is arranged on the installation plate (66).

10. A stainless steel pipe cutting device according to claim 9, characterized in that, The downward pressing mechanism (67) includes a hydraulic cylinder (671) and an inverted V-shaped plate (672); The hydraulic cylinder (671) is vertically arranged at the top of the installation plate (66). The output end of the hydraulic cylinder (671) penetrates through the installation plate (66) and extends to the lower part of the installation plate (66); The inverted V-shaped plate (672) is arranged at the output end of the hydraulic cylinder (671). Both sides of the inverted V-shaped plate (672) extend to the positions of the two limiting columns (63) in each fixing mechanism (6), and both sides of the inverted V-shaped plate (672) are respectively movably sleeved on the two limiting columns (63) in each fixing mechanism (6). Both sides of the inverted V-shaped plate (672) are respectively connected with one end of the passive column (65) in each fixing mechanism (6) far away from the corresponding upper clamping block (62).

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