Liquid heater processing equipment

Abstract

The invention relates to the technical field of laser cutting, in particular to liquid heater machining equipment. Comprising a machine tool and a base on the upper surface of the machine tool. The upper position of the front end of the machine base is fixedly connected with the laser cutting head. A feeding groove is formed in the machine base in a front-back penetrating mode. An auxiliary sleeve is fixedly connected to the upper surface of the machine tool and located on the front side of the machine base. A cutting gap is reserved between the auxiliary sleeve and the front side of the machine base. The laser cutting head extends into the cutting gap; the inner diameter of the auxiliary sleeve is consistent with the inner diameter of the feeding groove, and the cross section is circular; the multiple pipe fittings are fed to the cutting position of the outer wall of the center column at a time, the center column is controlled to rotate, the multiple pipe fittings can rotate and revolve around the center column at the same time, in this way, the multiple pipe fittings can sequentially pass through the laser cutting head to be cut, and compared with an existing mode that a single pipe fitting is sequentially cut, the cutting efficiency is improved. And the processing efficiency of the liquid heater is greatly improved.

Description

Technical Field

[0001] The invention relates to the technical field of laser cutting, in particular to a liquid heater processing device. Background Art

[0002] A liquid heater is a device that heats liquid to a specific temperature. It plays a key role in many fields and provides a reliable and effective solution for liquid heating. Usually, when a liquid heater is working, the liquid enters the container tube along the liquid inlet pipe and flows from top to bottom along the straight pipe inside the container tube. After the liquid flows to the bottom of the container tube, it flows from bottom to top along the gap between the outer wall of the straight pipe and the inner wall of the container tube. The heating wire inside the container tube heats the liquid, so that the liquid flows out along the liquid outlet pipe after being heated.

[0003] The main part of the straight tube and container tube in the liquid heater is sleeve-shaped, which is made by cutting the tube by laser. Laser processing uses the energy of light to reach a high energy density at the focus after being focused by a lens, and relies on the photothermal effect for processing. Laser processing has the advantages of reducing the use of tools, fast processing speed, and small surface deformation, and can process various materials.

[0004] For the processing of round tubes, generally a single round tube is inserted from the feeding hole of the machine tool into the inner side of the chuck and clamped by the chuck. When the laser cutting head is controlled to be close to the cutting outer wall of the round tube, the machine tool is controlled to drive the chuck and the round tube inside the chuck to rotate, and the circular cutting of the round tube is realized in the process of the laser cutting head emitting energy. After the cutting of a single section of the round tube is completed, the chuck will be released, and the round tube will be controlled to move axially and then clamped by the chuck again after feeding, and then the round tube will be controlled to rotate again to realize the cutting of the next section of the round tube. The cutting of the entire round tube needs to be carried out in single sections in sequence, and only a single pipe fitting can be cut each time, which makes the current liquid heater processing efficiency low. Summary of the invention

[0005] In order to make up for the shortcomings of the prior art, the present invention proposes a liquid heater processing equipment. The present invention loads multiple pipe fittings to the cutting position of the outer wall of the central column at a time, and controls the rotation of the central column, so that the multiple pipe fittings can rotate while revolving around the central column. In this way, the multiple pipe fittings can be cut in sequence through the laser cutting head. Compared with the existing single pipe cutting in sequence, the processing efficiency of the liquid heater is greatly improved.

[0006] The technical solution adopted by the present invention to solve its technical problems is: a liquid heater processing equipment described in the present invention comprises a machine tool and a machine base on the upper surface of the machine tool; a laser cutting head is fixedly connected to the upper front end of the machine base; a feeding trough is provided on the front and rear of the machine base; an auxiliary sleeve is fixedly connected to the upper surface of the machine tool and located on the front side of the machine base; a cutting gap is left between the auxiliary sleeve and the front side of the machine base; the laser cutting head extends into the cutting gap; the inner diameter of the auxiliary sleeve is consistent with the inner diameter of the feeding trough, and the cross-section is circular; a central column is concentrically inserted through the front and rear of the feeding trough and the inner side of the auxiliary sleeve; the front end of the central column is connected to a first motor; the outer shell of the first motor is fixedly connected to the upper surface of the machine tool; the outer diameter of the central column is smaller than the inner diameter of the auxiliary sleeve; the inner wall of the feeding trough and the inner wall of the auxiliary sleeve are provided with an inner annular groove; an annular rubber pad is installed in the inner annular groove; the outer wall of the central column is provided with two outer annular grooves corresponding to the inner annular groove; an annular elastic bag is installed in the outer annular groove.

[0007] Preferably, the end surface of the auxiliary sleeve near the front end is tilted downward; and the axial length of the auxiliary sleeve decreases as it approaches the machine tool.

[0008] Preferably, a centrifugal groove is eccentrically arranged inside the central column; a centrifugal block is connected to the centrifugal groove by a sliding seal; the centrifugal block divides the centrifugal groove into an outer centrifugal chamber and an inner centrifugal chamber; the outer centrifugal chamber is filled with a liquid medium; the outer centrifugal chamber is connected to the inner wall of the outer annular groove and to the elastic bag through a first liquid hole; the centrifugal block is connected to the inner wall of the inner centrifugal chamber through a tension spring.

[0009] Preferably, the center column is composed of an outer center sleeve and an inner center rod; the center rod includes multiple outer walls with different outer diameters; the center sleeve includes multiple inner walls with different inner diameters; the center sleeve is rotatably sealed and connected to the center rod at the contact position; the centrifugal grooves are evenly arranged on the outer wall of the center rod; the inner wall of the center sleeve is provided with a first annular cavity connected to multiple external centrifugal cavities; one end of the first liquid hole is connected to the first annular cavity, and the other end is connected to the outer annular groove; the first motor is connected to the center rod; the upper surface of the machine tool is fixedly connected to the support seat; the center rod and the front end of the center sleeve are rotatably connected to the support seat; a transmission gap is formed between the inner wall of the front end of the center sleeve and the outer wall of the center rod; a transition gear is provided in the transmission gap; the transition gear is rotatably connected to the support seat; the transition gear simultaneously engages with the outer annular teeth on the outer wall of the center rod and the inner annular teeth on the inner wall of the center sleeve.

[0010] Preferably, the outer wall of the center sleeve is provided with a groove; a plurality of the grooves are evenly distributed on the outer wall of the center sleeve in the circumferential direction; adjacent grooves are staggered in the axial direction of the center sleeve; a second motor is provided in the groove; the output shaft of the second motor is fixedly connected to the roller; the edge of the roller exposes the groove; the roller rolls from back to front; and the outer wall of the roller is coated with an elastic layer.

[0011] Preferably, the sliding seal in the groove is connected to the recess block; the second motor is fixedly connected to a side of the recess block away from the bottom of the groove; a second annular cavity is provided on the outer wall of the center rod; the bottom of the groove is connected to the second annular cavity through a second liquid hole; and the second annular cavity is connected to the inner centrifugal cavity through a third liquid hole.

[0012] Preferably, an adjustment cavity is provided inside the center rod; the adjustment cavity is movably sealed and connected to an adjustment disk; the adjustment disk is fixedly connected to a first bolt on a side facing away from the first motor; the first bolt passes through the center rod at the rear and is threadedly connected to the center rod; the space in front of the adjustment disk inside the adjustment cavity is a storage cavity; the storage cavity is connected to a third liquid hole; and the storage cavity is filled with a liquid medium.

[0013] Preferably, the outer wall of the center sleeve is sleeved with a first limiting ring; the front side of the first limiting ring is fixedly connected to a fixing plate; a fixing groove is provided through the front and rear of the support seat; the fixing plate is slidably connected in the fixing groove; the fixing groove is penetrated upward and is threadedly connected to a second bolt.

[0014] Preferably, the first limiting ring is rotatably connected to the second limiting ring on one side facing away from the support seat; the second limiting ring is evenly provided with a plurality of limiting holes on one side facing away from the first limiting ring; a limiting rod is slidably connected in the limiting hole; and the limiting rod is connected to the bottom of the limiting hole through a spring.

[0015] Preferably, the auxiliary sleeve is made of a transparent material.

[0016] The beneficial effects of the present invention are as follows:

[0017] 1. The present invention loads multiple pipes to the cutting position of the outer wall of the central column at a time, and controls the rotation of the central column, so that the multiple pipes can rotate while revolving around the central column. In this way, the multiple pipes can be cut in sequence through the laser cutting head. Compared with the existing single pipe cutting in sequence, the processing efficiency of the liquid heater is greatly improved.

[0018] 2. In the present invention, the elastic bag will contact the pipe after expansion, thereby pressing the pipe against the inner wall of the feeding trough and the inner wall of the auxiliary sleeve. The expanded elastic bag can fill the gap between adjacent pipes to limit the position of the pipe, so that the pipe is more stable during the subsequent process of passing through the laser cutting head and being cut.

[0019] 3. In the present invention, the transition gear meshes with the outer annular teeth and the inner annular teeth at the same time, so that the outer annular teeth on the outer wall of the center rod will drive the inner annular teeth to mesh through the transition gear, so that the center sleeve will rotate with the center rod. The rotation speed of the center sleeve is much lower than the rotation speed of the center rod due to the meshing transmission of the transition gear, thereby satisfying the centrifugal force required by the centrifugal block on the one hand and reducing the speed of the pipe passing through the laser cutting head on the other hand to improve the cutting effect.

[0020] 4. The present invention allows the centrifugal block to slide in the centrifugal groove under the centrifugal effect, so that the center column can press against the surrounding pipes when working, which is convenient for the subsequent rotation and revolution of the pipes. In addition, the pressing against the pipes is released in the non-working state, which is convenient for the subsequent loading of the pipes. At the same time, this embodiment can also be applied to the cutting of pipes with different outer diameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described below in conjunction with the accompanying drawings and implementation modes.

[0022] Figure 1 It is a stereogram of the processing state of the present invention;

[0023] Figure 2 is a stereogram of the present invention;

[0024] Figure 3 is a cross-sectional view of the present invention;

[0025] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0026] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0027] Figure 6 yes Figure 3 Enlarged view of point C in the middle;

[0028] Figure 7 yes Figure 3 Enlarged view of point D in the middle.

[0029] In the figure: machine tool 1, first motor 11, support base 12, fixing groove 13, second bolt 14, machine base 2, laser cutting head 21, feeding trough 22, auxiliary sleeve 3, inner annular groove 31, cutting gap 32, rubber pad 33, center column 45, center sleeve 4, outer annular groove 41, elastic capsule 42, first liquid hole 43, first annular cavity 44, transmission gap 46, inner annular gear 47, groove 48, second liquid hole 49, center rod 5, centrifugal groove 51, centrifugal block 52, outer centrifugal cavity 53, inner centrifugal cavity 54, tension spring 55, outer annular gear 56, second annular cavity 57, third liquid hole 58, adjusting cavity 59, transition gear 6, second motor 7, roller 71, concave block 72, adjusting disk 8, first bolt 81, storage cavity 82, first limiting ring 9, fixing plate 91, second limiting ring 92, limiting hole 93, limiting rod 94, spring 95. DETAILED DESCRIPTION

[0030] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0031] like Figures 1 to 7 As shown, the present invention includes the following embodiments:

[0032] Embodiment 1: A liquid heater processing equipment, comprising a machine tool 1 and a machine base 2 on the upper surface of the machine tool 1; a laser cutting head 21 is fixedly connected to the upper front end of the machine base 2; a feeding trough 22 is provided through the front and rear of the machine base 2; an auxiliary sleeve 3 is fixedly connected to the upper surface of the machine tool 1 and located at the front side of the machine base 2; a cutting gap 32 is left between the auxiliary sleeve 3 and the front side of the machine base 2; the laser cutting head 21 extends into the cutting gap 32; the inner diameter of the auxiliary sleeve 3 is consistent with the inner diameter of the feeding trough 22, and the cross section is circular; the feeding trough 22 is A center column 45 is concentrically inserted into the front and rear inner sides of the auxiliary sleeve 3; the front end of the center column 45 is connected to the first motor 11; the housing of the first motor 11 is fixedly connected to the upper surface of the machine tool 1; the outer diameter of the center column 45 is smaller than the inner diameter of the auxiliary sleeve 3; the inner wall of the feeding trough 22 and the inner wall of the auxiliary sleeve 3 are provided with an inner annular groove 31; an annular rubber pad 33 is installed in the inner annular groove 31; the outer wall of the center column 45 is provided with two outer annular grooves 41 corresponding to the inner annular groove 31; an annular elastic bag 42 is installed in the outer annular groove 41.

[0033] In this embodiment, the end surface of the auxiliary sleeve 3 at the front end is tilted downward; the axial length of the auxiliary sleeve 3 decreases as it approaches the machine tool 1.

[0034] The pipe fittings in the liquid heater are put into the liquid heater from the rear end of the feeding trough 22, and the rear end of the center column 45 is chamfered to facilitate the guiding entry of the pipe fittings. After the pipe fittings enter the inner side of the feeding trough 22 along the gap between the inner wall of the feeding trough 22 and the outer wall of the center column 45, the front end of the pipe fittings will pass over the inner annular groove 31 in the feeding trough 22 and continue to move forward, and the front end of the pipe fittings will move out of the feeding trough 22 and enter the cutting gap 32, and the front end of the pipe fittings will then move forward to enter the inner side of the auxiliary sleeve 3 and pass over the inner annular groove 31 inside the auxiliary sleeve 3. Multiple pipe fittings need to be inserted into the feeding trough 22 and the auxiliary sleeve 3 until the multiple pipe fittings fill the annular gap between the inner wall of the feeding trough 22 and the outer wall of the center column 45. The outer wall is in contact with the elastic bag 42 and the rubber pad 33 at the same time, and then the first motor 11 is controlled to rotate. The rotation of the first motor 11 will drive the central column 45 to rotate. The rotation of the central column 45 will drive the two outer annular grooves 41 on the outer wall to rotate. The outer annular groove 41 is filled with an elastic bag 42. As the central column 45 rotates, the elastic bag 42 will generate friction with the outer wall of the pipe. The outer wall of the pipe is also in contact with the annular rubber pad 33 in the inner annular groove 31. The surface where the rubber pad 33 and the elastic bag 42 contact the outer wall of the pipe can be provided with protrusions or convex strips (not shown in the figure) to increase the friction between the rubber pad 33 and the elastic bag 42 and the pipe, thereby avoiding slipping between the pipe and the rubber pad 33 and the elastic bag 42, and improving the pipe performance. The transmission effect of the high pipe fittings is that as the center column 45 rotates, the center column 45 will drive the elastic bag 42 and the rubber pad 33 to rotate relative to each other. The multiple pipe fittings rotate around the center column 45 while rotating under the friction of the elastic bag 42. After the laser cutting head 21 is started, the pipe fittings passing below are laser cut, so that the multiple pipe fittings can be quickly laser cut after one loading is completed. After the pipe fittings are cut, the laser cutting head 21 and the first motor 11 are stopped, the center column 45 also stops rotating, and the multiple pipe fittings also stop rotating and revolving. Then, the multiple pipe fittings are controlled to move forward along the axial direction, and the cut workpiece is pushed forward by the pipe fitting being fed, and the cut workpiece close to the position of the machine tool 1 is first cut from the front end of the auxiliary sleeve 3. The cut workpiece at the upper position of the inner side of the auxiliary sleeve 3 moves and moves downward along the inner wall of the auxiliary sleeve 3 and the outer wall of the center column 45 under the action of its own gravity, and finally comes out from the inner side of the auxiliary sleeve 3 at a position close to the upper surface of the machine tool 1 and falls. The cut workpieces can fall in sequence by tilting the upper end of the auxiliary sleeve 3 downward, avoiding the scattered caused by falling at the same time, thereby improving the material feeding effect. After the multiple pipes are moved to the corresponding positions along the axial direction, the first motor 11 is controlled to rotate again to drive the center column 45 to rotate. The rotation of the center column 45 drives the multiple pipes to rotate and revolve, and the laser cutting head 21 works and cuts again, and this is repeated. The cut workpiece will be processed into a straight pipe or a container pipe in a liquid heater in the next step.

[0035] The present invention loads multiple pipes to the cutting position of the outer wall of the center column 45 at a time, and controls the rotation of the center column 45, so that the multiple pipes can rotate while revolving around the center column 45. In this way, the multiple pipes can be cut in sequence through the laser cutting head 21. Compared with the existing single pipe cutting in sequence, the processing efficiency of the liquid heater is greatly improved.

[0036] Embodiment 2: A centrifugal groove 51 is eccentrically arranged inside the central column 45; a centrifugal block 52 is connected to the centrifugal groove 51 in a sliding seal; the centrifugal block 52 divides the centrifugal groove 51 into an outer centrifugal chamber 53 and an inner centrifugal chamber 54; the outer centrifugal chamber 53 is filled with a liquid medium; the outer centrifugal chamber 53 is connected to the inner wall of the outer annular groove 41 and to the elastic bag 42 through the first liquid hole 43; the centrifugal block 52 is connected to the inner wall of the inner centrifugal chamber 54 through a tension spring 55.

[0037] In this embodiment, the center column 45 is composed of an outer center sleeve 4 and an inner center rod 5; the center rod 5 includes multiple outer walls with different outer diameters; the center sleeve 4 includes multiple inner walls with different inner diameters; the center sleeve 4 is rotatably sealed and connected to the center rod 5 at the contact position; the centrifugal grooves 51 are evenly arranged on the outer wall of the center rod 5; the inner wall of the center sleeve 4 is provided with a first annular cavity 44 connected to multiple outer centrifugal cavities 53; one end of the first liquid hole 43 is connected to the first annular cavity 44, and the other end is connected to the outer annular groove 41; the first motor 11 is connected to the center rod 5; the upper surface of the machine tool 1 is fixedly connected to the support seat 12; the center rod 5 and the front end of the center sleeve 4 are rotatably connected to the support seat 12; a transmission gap 46 is formed between the inner wall of the front end of the center sleeve 4 and the outer wall of the center rod 5; a transition gear 6 is provided in the transmission gap 46; the transition gear 6 is rotatably connected to the support seat 12; the transition gear 6 simultaneously engages with the outer annular teeth 56 on the outer wall of the center rod 5 and the inner annular teeth 47 on the inner wall of the center sleeve 4.

[0038] When the first motor 11 stops rotating, the centrifugal block 52 is pulled by the tension spring 55 in the centrifugal groove 51 to be close to the center position of the center rod 5, and the elastic bag 42 in the outer annular groove 41 is in a deflated state, so as to facilitate the loading of the pipe. The pipe will pass through the inner wall of the loading groove 22 and the outer wall of the center column 45, the cutting gap 32, the inner wall of the auxiliary sleeve 3 and the outer wall of the center column 45 along the axial direction. When the pipe moves to the corresponding position, the first motor 11 is controlled to rotate. During the rotation of the first motor 11, the center rod 5 will be driven to rotate. During the rotation of the center rod 5, multiple centrifugal grooves 51 will be driven to rotate around the center rod 5. The centrifugal block 52 in the centrifugal groove 51 will rotate around the center rod 5 as the center rod 5 rotates. The centrifugal block 52 has a high rotation speed at a higher rotation speed. Due to the larger centrifugal force, the centrifugal block 52 will slide along the centrifugal groove 51 away from the center of the central rod 5. After the centrifugal block 52 slides along the centrifugal groove 51, the space of the inner centrifugal chamber 54 will become larger, and the space of the outer centrifugal chamber 53 will become smaller. The multiple outer centrifugal chambers 53 are connected through the first annular cavity 44. The liquid medium in the multiple outer centrifugal chambers 53 is squeezed by the corresponding centrifugal block 52, which will make the liquid medium enter the outer annular groove 41 along the first annular cavity 44 and the first liquid hole 43, so that the elastic bag 42 in the outer annular groove 41 is pressurized and expanded. After the elastic bag 42 expands, it will contact the pipe fittings, so as to press the pipe fittings against the inner wall of the feeding groove 22 and the inner wall of the auxiliary sleeve 3. The expanded elastic bag 42 can fill the gap between adjacent pipe fittings, so as to achieve the pipe fittings. The limit position makes the pipe more stable during the subsequent process of passing through the laser cutting head 21 and being cut; as the center rod 5 rotates, the center rod 5 will drive the outer annular teeth 56 on the outer wall to rotate synchronously, and the transition gear 6 will mesh with the outer annular teeth 56 and the inner annular teeth 47 at the same time, so that the outer annular teeth 56 on the outer wall of the center rod 5 will drive the inner annular teeth 47 to mesh and transmit through the transition gear 6, so that the center sleeve 4 will rotate with the rotation of the center rod 5. Due to the meshing transmission of the transition gear 6, the rotation speed of the center sleeve 4 is much lower than the rotation speed of the center rod 5, thereby satisfying the centrifugal force required by the centrifugal block 52 on the one hand, and reducing the speed of the pipe passing through the laser cutting head 21 on the other hand to improve the cutting effect; After the center sleeve 4 in the center column 45 rotates with the rotation of the center rod 5, the center sleeve 4 will drive the elastic bag 42 with the expanded outer wall to rub the pipe fitting, so that the pipe fitting can rotate and revolve at the same time and pass through the laser cutting head 21, so as to complete the laser cutting of the pipe fitting; after the cutting of the pipe fitting is completed, the rotation of the first motor 11 is stopped, and after the speed of the center rod 5 is reduced, the tension spring 55 will pull the centrifugal block 52 close to the center of the center rod 5, so that the space of the inner centrifugal cavity 54 becomes smaller, and the space in the outer centrifugal cavity 53 becomes larger to form a negative pressure, so that the liquid medium in the elastic bag 42 flows back to the outer centrifugal cavity 53 along the first liquid hole 43, and the deflated elastic bag 42 releases the tightness against the pipe fitting, so that the pipe fitting can be fed more smoothly along the axial direction when the tightness is released;

[0039] In this embodiment, the centrifugal block 52 slides in the centrifugal groove 51 under the centrifugal effect, so that the central column 45 is pressed against the surrounding pipes during operation, which is convenient for the subsequent rotation and revolution of the pipes. In addition, the pressing against the pipes is released in the non-operating state, which is convenient for the subsequent loading of the pipes. At the same time, this embodiment can also be applied to the cutting of pipes with different outer diameters.

[0040] Embodiment 3: The outer wall of the center sleeve 4 is provided with a groove 48; a plurality of the grooves 48 are evenly distributed on the outer wall of the center sleeve 4 in the circumferential direction; adjacent grooves 48 are staggered in the axial direction of the center sleeve 4; a second motor 7 is provided in the groove 48; the output shaft of the second motor 7 is fixedly connected to the roller 71; the edge of the roller 71 is exposed from the groove 48; the roller 71 rolls from the back to the front; the outer wall of the roller 71 is covered with an elastic layer.

[0041] In this embodiment, the sliding seal in the groove 48 is connected to the recess block 72; the second motor 7 is fixedly connected to the side of the recess block 72 away from the bottom of the groove 48; the outer wall of the center rod 5 is provided with a second annular cavity 57; the bottom of the groove 48 is connected to the second annular cavity 57 through the second liquid hole 49; the second annular cavity 57 is connected to the inner centrifugal cavity 54 through the third liquid hole 58.

[0042] In this embodiment, an adjustment chamber 59 is provided inside the center rod 5; the adjustment chamber 59 is movably sealed and connected to the adjustment disk 8; the adjustment disk 8 is fixedly connected to the first bolt 81 on the side facing away from the first motor 11; the first bolt 81 passes through the center rod 5 at the rear and is threadedly connected to the center rod 5; the space in front of the adjustment disk 8 inside the adjustment chamber 59 is a storage chamber 82; the storage chamber 82 is connected to the third liquid hole 58; and the storage chamber 82 is filled with liquid medium.

[0043] Before using the processing equipment for laser cutting, the pipe is first loaded along the loading trough 22. After the pipe is moved to a suitable position along the axial direction, the first bolt 81 is screwed to drive the adjusting disk 8 to move close to the first motor 11, so that the medium in the storage chamber 82 enters the groove 48 along the third liquid hole 58, the second annular cavity 57, and the second liquid hole 49. The liquid medium can push the concave block 72 to slide in the groove 48 away from the bottom of the groove 48. The centrifugal block 52 cannot slide in the centrifugal groove 51 under the pull of the tension spring 55. The liquid medium continues to push the concave block 72, and the concave block 72 will drive the second motor 7 and the roller 71 to move outward until the roller 71 The rollers 71 are arranged to contact with each other, and the number of the rollers 71 is greater than the number of the pipes. The adjacent grooves 48 in the circumference of the center sleeve 4 are staggered in the axial direction (not shown in the figure), so that the adjacent rollers 71 are as close to each other as possible in the circumference of the center sleeve 4, or even overlap, so as to ensure that all the pipes can be contacted by the corresponding rollers 71 to meet the feeding requirements. With the rotation of the second motor 7, the second motor 7 will drive the rollers 71 to rotate, and the elastic layer on the surface of the rollers 71 will produce greater friction with the outer wall of the pipe, so as to avoid slipping. In this way, the pipes will be driven to move forward along the axial direction during the rotation of the rollers 71, which is effective. The automatic feeding of the pipe fittings is realized. After the pipe fittings are fed to the corresponding position, the first motor 11 is controlled to rotate. The rotation of the first motor 11 drives the center rod 5 to rotate. During the rotation of the center rod 5, the centrifugal block 52 will be driven to generate centrifugal force. The center rod 5 will also drive the center sleeve 4 to rotate. The rotation speed of the center sleeve 4 is much lower than the rotation speed of the center rod 5. The centrifugal force exerted on the centrifugal block 52 is greater than the centrifugal force generated by the concave block 72. In this way, the centrifugal block 52 will overcome the tension spring 55 and move away from the center of the center rod 5. In this way, the space of the outer centrifugal chamber 53 becomes larger, and the space of the inner centrifugal chamber 54 becomes smaller. The medium in the outer centrifugal chamber 53 will enter the inner side of the elastic bag 42 to expand. The expanded elastic bag 42 will expand the inner side of the pipe fitting. The wall is pressed tightly, and the medium in the groove 48 is sucked in during the process of the space of the inner centrifugal chamber 54 becoming smaller. The medium in the groove 48 enters the inner centrifugal chamber 54 along the second liquid hole 49, the second annular cavity 57, and the third liquid hole 58. The concave block 72 drives the roller 71 and the second motor 7 to retract into the groove 48 for avoidance. As the center sleeve 4 rotates, the center sleeve 4 drives the expanded elastic bag 42 to rub the pipe fitting, so that the pipe fitting rotates and revolves. When the center sleeve 4 works on the pipe fitting, the roller 71 retracts into the groove 48, thereby preventing the roller 71 from affecting the rotation of the pipe fitting, so that the pipe fitting is more smoothly driven by the center sleeve 4 to move;After the laser cutting of the pipe is completed, the first motor 11 stops rotating, the center rod 5 and the center sleeve 4 stop rotating, the centrifugal block 52 is reset under the pull of the tension spring 55, the outer centrifugal chamber 53 expands, the inner centrifugal chamber 54 decreases, the elastic bag 42 shrivels, and the medium in the inner centrifugal chamber 54 is squeezed by the centrifugal block 52 and enters the groove 48 along the third liquid hole 58, the second annular cavity 57 and the second liquid hole 49, thereby pushing the concave block 72 to move outward, and the concave block 72 will drive the roller 71 to extend out of the groove 48 again and abut against the outer wall of the pipe. The second motor 7 drives the roller 71 to rotate, and the roller 71 will drive the remaining pipes to move along the axial direction for automatic feeding. ;

[0044] Embodiment 4: The outer wall of the center sleeve 4 is sleeved with a first limiting ring 9; the front side of the first limiting ring 9 is fixedly connected to a fixing plate 91; the support seat 12 is penetrated by fixing grooves 13 at the front and back; the fixing plate 91 is slidably connected in the fixing grooves 13; the fixing grooves 13 are penetrated upward and are threadedly connected to a second bolt 14.

[0045] In this embodiment, the first limiting ring 9 is rotatably connected to the second limiting ring 92 on the side facing away from the support seat 12; the second limiting ring 92 is evenly provided with a plurality of limiting holes 93 on the side facing away from the first limiting ring 9; a limiting rod 94 is slidably connected in the limiting hole 93; the limiting rod 94 is connected to the bottom of the limiting hole 93 through a spring 95.

[0046] In this embodiment, the auxiliary sleeve 3 is made of transparent material.

[0047] Before loading the pipe, first loosen the second bolt 14 so that the fixing plate 91 is unlocked in the fixing groove 13 and then slides back and forth along the fixing groove 13. The fixing plate 91 will drive the first limiting ring 9 to move back and forth, thereby changing the limiting position of the front end of the pipe to meet the laser cutting requirements of different lengths. The second limiting ring 92 will move back and forth synchronously with the movement of the first limiting ring 9. Tighten the second bolt 14 so that the fixing plate 91 is locked in the fixing groove 13. During the forward movement of the pipe for loading, the front end of the pipe will approach the second limiting ring 92, and the front end of the pipe will squeeze part of the limiting rod 94, so that part of the limiting rod 94 moves along the limiting hole 93 to overcome the spring 95, and the limiting rods 94 that have not been squeezed around the front end of other pipes will start to move. To limit the front end of the pipe fitting, the pipe fitting finally contacts with the second limiting ring 92. After being limited by the limiting rod 94, the pipe fitting cannot rotate relative to the second limiting ring 92, and the positions of adjacent pipe fittings are locked. In this way, when multiple pipe fittings rotate and revolve with the center sleeve 4, adjacent pipe fittings will not shift, thereby improving the stability of the pipe fitting cutting process; in addition, the front end of the pipe fitting can be observed through the transparent auxiliary sleeve 3; after the pipe fitting cutting is completed, the second bolt 14 can be loosened, the fixing plate 91 can be moved forward, and the first limiting ring 9 and the second limiting ring 92 can be moved forward to avoid unloading of the cut workpiece. After the pipe fitting is separated from the second limiting ring 92, the limiting rod 94 is pushed by the spring 95 to move out of the limiting hole 93 and reset.

[0048] In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, it cannot be understood as limiting the scope of protection of the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0049] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A liquid heater processing device, comprising a machine tool (1) and a machine base (2) on the upper surface of the machine tool (1); a laser cutting head (21) is fixedly connected to the upper front end of the machine base (2); characterized in that: The machine base (2) is provided with a feeding trough (22) running through the front and rear sides; an auxiliary sleeve (3) is fixedly connected to the upper surface of the machine tool (1) and located at the front side of the machine base (2); a cutting gap (32) is reserved between the auxiliary sleeve (3) and the front side of the machine base (2); the laser cutting head (21) extends into the cutting gap (32); the inner diameter of the auxiliary sleeve (3) is consistent with the inner diameter of the feeding trough (22), and the cross-sections of both are circular; a central column (45) is concentrically interspersed on the inner sides of the feeding trough (22) and the auxiliary sleeve (3); the central column (45) is located at the front One end is connected to a first motor (11); the housing of the first motor (11) is fixedly connected to the upper surface of the machine tool (1); the outer diameter of the central column (45) is smaller than the inner diameter of the auxiliary sleeve (3); the inner wall of the feeding trough (22) and the inner wall of the auxiliary sleeve (3) are provided with an inner annular groove (31); an annular rubber pad (33) is installed in the inner annular groove (31); the outer wall of the central column (45) is provided with two outer annular grooves (41) corresponding to the inner annular groove (31); an annular elastic bag (42) is installed in the outer annular groove (41).

2. The liquid heater processing equipment according to claim 1, characterized in that: The end surface of the auxiliary sleeve (3) at the front end is tilted downward; the axial length of the auxiliary sleeve (3) decreases as it approaches the machine tool (1).

3. The liquid heater processing equipment according to claim 1, characterized in that: A centrifugal groove (51) is eccentrically arranged inside the central column (45); a centrifugal block (52) is connected to the centrifugal groove (51) in a sliding seal; the centrifugal block (52) divides the centrifugal groove (51) into an outer centrifugal chamber (53) and an inner centrifugal chamber (54); the outer centrifugal chamber (53) is filled with a liquid medium; the outer centrifugal chamber (53) is connected to the inner wall of the outer annular groove (41) and to the elastic bag (42) through the first liquid hole (43); the centrifugal block (52) is connected to the inner wall of the inner centrifugal chamber (54) through a tension spring (55).

4. The liquid heater processing equipment according to claim 3, characterized in that: The center column (45) is composed of an outer center sleeve (4) and an inner center rod (5); the center rod (5) includes a plurality of outer walls with different outer diameters; the center sleeve (4) includes a plurality of inner walls with different inner diameters; the center sleeve (4) is rotatably sealed and connected to the center rod (5) at the contact position; the centrifugal grooves (51) are evenly arranged on the outer wall of the center rod (5); the inner wall of the center sleeve (4) is provided with a first annular cavity (44) connected to a plurality of outer centrifugal cavities (53); one end of the first liquid hole (43) is connected to the first annular cavity (44), and the other end is connected to the outer annular groove (41); The first motor (11) is connected to the center rod (5); the upper surface of the machine tool (1) is fixedly connected to the support seat (12); the center rod (5) and the front end of the center sleeve (4) are rotatably connected to the support seat (12); a transmission gap (46) is formed between the inner wall of the front end of the center sleeve (4) and the outer wall of the center rod (5); a transition gear (6) is provided in the transmission gap (46); the transition gear (6) is rotatably connected to the support seat (12); the transition gear (6) simultaneously meshes with the outer ring gear (56) on the outer wall of the center rod (5) and the inner ring gear (47) on the inner wall of the center sleeve (4).

5. The liquid heater processing equipment according to claim 4, characterized in that: The outer wall of the center sleeve (4) is provided with a groove (48); a plurality of the grooves (48) are evenly distributed on the outer wall of the center sleeve (4) in the circumferential direction; adjacent grooves (48) are staggered in the axial direction of the center sleeve (4); a second motor (7) is provided in the groove (48); the output shaft of the second motor (7) is fixedly connected to a roller (71); the edge of the roller (71) is exposed from the groove (48); the roller (71) rolls from the back to the front; the outer wall of the roller (71) is coated with an elastic layer.

6. The liquid heater processing equipment according to claim 5, characterized in that: The groove (48) is connected to the concave block (72) by a sliding seal; the second motor (7) is fixedly connected to a side of the concave block (72) away from the bottom of the groove (48); the outer wall of the center rod (5) is provided with a second annular cavity (57); the bottom of the groove (48) is connected to the second annular cavity (57) through a second liquid hole (49); the second annular cavity (57) is connected to the inner centrifugal cavity (54) through a third liquid hole (58).

7. The liquid heater processing equipment according to claim 6, characterized in that: An adjusting chamber (59) is provided inside the central rod (5); the adjusting chamber (59) is movably sealed and connected to an adjusting disk (8); the adjusting disk (8) is fixedly connected to a first bolt (81) on a side facing away from the first motor (11); the first bolt (81) passes through the central rod (5) at the rear and is threadedly connected to the central rod (5); the space in front of the adjusting disk (8) inside the adjusting chamber (59) is a storage chamber (82); the storage chamber (82) is connected to a third liquid hole (58); and the storage chamber (82) is filled with a liquid medium.

8. The liquid heater processing equipment according to claim 4, characterized in that: The outer wall of the center sleeve (4) is sleeved with a first limiting ring (9); the front surface of the first limiting ring (9) is fixedly connected to a fixing plate (91); the support seat (12) is penetrated by fixing grooves (13) at the front and rear; the fixing plate (91) is slidably connected in the fixing grooves (13); the fixing grooves (13) are penetrated upward and are threadedly connected to a second bolt (14).

9. The liquid heater processing equipment according to claim 8, characterized in that: The first limiting ring (9) is rotatably connected to the second limiting ring (92) on one side facing away from the support seat (12); the second limiting ring (92) is evenly provided with a plurality of limiting holes (93) on one side facing away from the first limiting ring (9); a limiting rod (94) is slidably connected in the limiting hole (93); the limiting rod (94) is connected to the bottom of the limiting hole (93) through a spring (95).

10. The liquid heater processing equipment according to claim 4, characterized in that: The auxiliary sleeve (3) is made of transparent material.

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