Water heating pipe fitting machining inner positioning device

Abstract

The application relates to the technical field of water heating pipe fitting processing, in particular to a water heating pipe fitting processing inner positioning device, which comprises a machine box base, an air inflation shaft arranged on the rotating end of the machine box base, a pushing mechanism for pushing out the processed pipe fitting on the air inflation shaft and arranged on the machine box base and located outside the air inflation shaft, a sliding frame connected to the top of the machine box base, a horizontal plate slidingly connected to the inner side of the sliding frame, a fixed block arranged on the top of the horizontal plate, an upper placing frame fixedly and obliquely connected to the top of the fixed block and provided with a discharging port near the air inflation shaft, a lower placing frame arranged beside the upper placing frame, a sliding groove penetratingly arranged at both ends of the inner side of the sliding frame and a bottom groove arranged on the bottom of the sliding frame. Through the arrangement of the above structure, the water heating pipe fitting can be automatically inserted onto the air inflation shaft, and can be moved away from the air inflation shaft after the feeding is completed, so that the transverse movement of the turning tool is avoided, the multifunctional operation of the processing machine tool is influenced, the convenient performance of the device is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of water heating pipe fitting processing, and particularly relates to an internal positioning device for water heating pipe fitting processing. BACKGROUND

[0002] Water heating is one of floor radiant heating and is the most popular heating method. Compared with electric heating, water heating has more advantages. Water heating is through the floor coil, and the pipeline has circulating hot water. The hot medium in the floor radiant layer uniformly heats the entire floor. The heat is conducted from bottom to top according to the law of heat radiation upward by the floor itself to achieve the purpose of heating. The water heating pipe fitting is a pipe fitting used for water heating laying. In the water heating pipe fitting processing, the internal positioning method is used to fix some double-end external thread pipe fittings so as to simultaneously process the threads of the two ends of the pipe fitting and improve the processing efficiency of the water heating pipe fitting. Therefore, the internal positioning device needs to be used.

[0003] The internal positioning device for water heating pipe fitting processing disclosed in the prior art with the publication number CN218476086U is provided with a collecting assembly. In the process of using the internal positioning device for water heating pipe fitting processing, the debris can be uniformly collected, the safety of the processing site is avoided from being affected by the falling debris, the cleaning of the debris is completed at the same time of processing, and the debris of different sizes can be filtered through the filter screen. Some larger debris with recycling value can be recycled, which is very convenient.

[0004] The above device can collect the debris generated in the processing process, but there are still some defects in the actual processing process. Since the existing positioning device is provided with an ejection mechanism, the processed pipe fitting can be ejected, but lacks a feeding mechanism. The worker needs to feed the material during the processing, which not only wastes time and effort, but also greatly reduces the convenience of the device and affects the processing efficiency of the device.

[0005] Therefore, the internal positioning device for water heating pipe fitting processing is proposed to solve the above problems. SUMMARY

[0006] The purpose of the present application is to solve the defects in the background art and provide an internal positioning device for water heating pipe fitting processing.

[0007] To achieve the above purpose, the technical solution adopted by the present invention is: a positioning device for processing water heating pipe fittings, comprising a chassis base, and an air shaft arranged on the rotating end of the chassis base, and a pushing mechanism for pushing out the pipe fittings processed on the air shaft is provided on the chassis base and on the outside of the air shaft, a sliding frame is slidably connected to the top of the chassis base, a horizontal plate is slidably connected to the inner side of the sliding frame, a fixed block is provided on the top of the horizontal plate, an upper placement frame is fixedly connected to the top of the fixed block at an angle, and a discharge port is provided on the side of the upper placement frame close to the air shaft, and a lower placement frame is provided next to the upper placement frame;

[0008] The top of the sliding plate is provided with an inclined groove for squeezing the round rod, and the top end of the slide is fixedly connected to the top plate for pushing the sliding frame to move. The side wall of the chassis base is fixedly connected with an electric telescopic cylinder, and the side wall of the slide is fixedly connected to the side plate, and the output end of the electric telescopic cylinder is fixedly connected to the side wall of the side plate, and the chassis base is provided with a limiting mechanism for limiting the sliding position of the sliding frame by a fixed distance.

[0009] In the above technical solution, further, the side wall of the fixed block is fixedly connected to an L-shaped plate, the sliding block is slidably connected to the L-shaped plate, the lower placement frame is obliquely fixedly connected to the top of the sliding block, the upper placement frame and the lower placement frame are combined into a U-shaped frame with a gap in the middle for storing pipes, and the L-shaped plate is provided with an adjustment mechanism for adjusting the distance between the fixed block and the sliding block.

[0010] In the above technical solution, further, a touch sensor is fixedly connected to the side wall of the upper placement frame and is located next to the discharge port, and the touch sensor is electrically connected to the electric telescopic cylinder through a controller.

[0011] In the above technical solution, further, a number of upper springs are fixedly connected between the inner side of the bottom groove and the side wall of the connecting plate, a pair of guide rods are fixedly connected to the side wall of the sliding frame and are arranged through the chassis base, and a pair of lower springs are fixedly connected between the side wall of the chassis base and the side wall of the sliding frame.

[0012] In the above technical solution, further, the limiting mechanism includes a limiting plate, a lower groove is opened on the top of the chassis base and next to the sliding frame, the limiting plate is slidably connected to the inner side of the lower groove, and a limiting spring is fixedly connected between the inner side of the lower groove and the side wall of the limiting plate. A limiting plate for limiting the sliding position of the horizontal plate is fixedly connected to the top of the sliding frame, and the horizontal plate is arranged through the outer wall of the sliding frame close to the side of the limiting plate.

[0013] Further, the adjusting mechanism comprises a threaded rod, the threaded rod is rotationally connected between the L-shaped plate and the fixed block, a rotating block is fixedly connected to the side wall of the threaded rod through the L-shaped plate, and the side wall of the threaded rod penetrates through the inner side wall of the sliding block and is threadedly connected.

[0014] Further, the inner side of the sliding frame is provided with an adjusting frame, the adjusting frame is rotationally connected to the inner bottom end of the sliding frame near the bottom end of the side of the upper placing frame, a straight groove is formed in the top of the horizontal plate, an adjusting rod is fixedly connected to the bottom of the fixed block and located on the inner side of the straight groove, the bottom end of the adjusting rod is inserted into the inner side of the adjusting frame, a lower plate is fixedly connected to the side wall of the adjusting frame, a screw rod is threadedly connected to the top of the lower plate, a plurality of fixed grooves are equidistantly formed in the inner bottom end of the sliding frame in a circular arc shape, the centers of the circular distribution of the plurality of fixed grooves are the same as the rotation center of the adjusting frame, the fixed grooves are arranged at positions corresponding to the screw rod, and the bottom end of the screw rod is inserted into the inner side of one of the fixed grooves.

[0015] Further, the bottom end of the case base and below the gas expansion shaft are provided with a discharging groove, the front side of the case base and below the discharging groove are provided with a collecting groove, a collecting box is slidably connected to the inner side of the collecting groove, and a plurality of filter holes are formed in the bottom of the discharging groove and above the collecting groove.

[0016] Compared with the prior art, the present application has the following beneficial effects:

[0017] 1. The present application can automatically insert the water heating pipe into the gas expansion shaft through the structure of the electric telescopic cylinder, the sliding frame, the sliding plate and the upper placing frame, and can move away from the gas expansion shaft after the feeding is completed, thereby avoiding hindering the transverse movement of the turning tool and affecting the multifunctional operation of the machining machine tool, and greatly improving the convenience performance of the device.

[0018] 2. The present application can adjust the distance between the upper placing frame and the lower placing frame according to the length of the machined water heating pipe, and can adjust the distance of the upper placing frame sliding out of the gas expansion shaft, thereby automatically feeding the water heating pipes of different lengths, and further improving the universal performance of the device. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a front perspective structure diagram of the positioning device of the present application;

[0020] Figure 2 It is a rear perspective structure diagram of the positioning device of the present application;

[0021] Figure 3 For the chassis base side of the application Figure 2 Local enlarged structure schematic view in A of the figure;

[0022] Figure 4 For the chassis base side of the application

[0023] Figure 5 For the electric telescopic cylinder, sliding frame, upper placing frame and lower placing frame of the application

[0024] Figure 6 For the sliding plate of the application

[0025] Figure 7 For the chassis base side of the application Figure 5 Local enlarged structure schematic view in B of the figure;

[0026] Figure 8 For the sliding frame of the application

[0027] Figure 9 For the fixed block, sliding block and horizontal plate of the application

[0028] Figure 10 For the sliding frame and adjusting frame of the application

[0029] Figure: 1, chassis base; 2, air inflation shaft; 3, pushing mechanism; 4, sliding frame; 5, horizontal plate; 6, fixed block; 7, L-shaped plate; 8, sliding block; 9, upper placing frame; 10, lower placing frame; 11, discharge port; 12, sliding groove; 13, sliding rod; 14, connecting plate; 15, round rod; 16, sliding plate; 17, inclined chute; 18, top plate; 19, electric telescopic cylinder; 20, side plate; 21, bottom groove; 22, touch sensor; 23, upper spring; 24, guide rod; 25, lower spring; 26, limiting plate; 27, lower groove; 28, limiting spring; 29, limiting plate; 30, threaded rod; 31, rotating block; 32, guide block; 33, adjusting frame; 34, straight groove; 35, adjusting rod; 36, lower plate; 37, screw rod; 38, fixed groove; 39, discharge groove; 40, collecting groove; 41, collecting box; 42, filter hole; 43, groove. DETAILED DESCRIPTION

[0030] In order to enable the above-mentioned objects, features and advantages of the present application to be more clearly understood and appreciated, the following will further describe the present application in conjunction with the accompanying drawings and specific embodiments.

[0031] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0032] like Figures 1-10 The device for positioning the inner surface of a water heating pipe fitting shown in the figure comprises a chassis base 1 and an inflatable shaft 2 arranged on the rotating end of the chassis base 1. The inflatable shaft 2 is mainly inflated by an air nozzle. The pressure of the air chamber or air cavity in the shaft increases, causing the key strips or strips on the surface of the shaft to expand, thereby closely fitting the inner wall of the pipe fitting to achieve fixation. This is a mature technology in the prior art and will not be described in detail here. A pushing mechanism 3 for pushing out the pipe fitting processed on the inflatable shaft 2 is provided on the chassis base 1 and outside the inflatable shaft 2. The pushing mechanism 3 is mainly driven by an electric motor. While the telescopic cylinder 19 is running, it starts to push out the pipe fittings processed on the inflatable shaft 2 and reset it, thereby ensuring the normal operation of the subsequent loading assembly. This is a mature technology in the prior art and will not be described in detail here. The top of the chassis base 1 is slidably connected to a sliding frame 4, and the inside of the sliding frame 4 is slidably connected to a horizontal plate 5. A fixed block 6 is provided on the top of the horizontal plate 5, and an upper placement frame 9 is fixedly connected to the top of the fixed block 6 at an angle. The upper placement frame 9 is provided with a discharge port 11 on the side close to the inflatable shaft 2, and a lower placement frame 10 is provided next to the upper placement frame 9;

[0033] Both ends of the inner side of the sliding frame 4 are provided with a slide groove 12, and the bottom of the sliding frame 4 is provided with a bottom groove 21. The inner side of the bottom groove 21 is slidably connected with a connecting plate 14, and the sliding rod 13 is fixedly connected between the cross plate 5 and the connecting plate 14 and located inside the slide groove 12. The top of the chassis base 1 and below the sliding frame 4 is provided with an inward groove 43, and a round rod 15 is fixedly connected to the middle of the bottom end of the connecting plate 14. A slide plate 16 is slidably connected inside the groove 43. An inclined groove 17 for squeezing the round rod 15 is provided on the top of the slide plate 16. The top of the slide plate 16 is fixedly connected to a top plate 18 for pushing the sliding frame 4 to move. An electric telescopic cylinder 19 is fixedly connected to the side wall of the chassis base 1, and the side wall of the slide plate 16 is fixedly connected to the side plate 20. The output end of the electric telescopic cylinder 19 is fixedly connected to the side wall of the side plate 20. A limiting mechanism for limiting the sliding position of the sliding frame 4 at a fixed distance is provided on the chassis base 1;

[0034] The L-shaped plate 7 is slidably connected with the sliding block 8, the lower placing frame 10 is fixedly connected to the top of the sliding block 8, the upper placing frame 9 and the lower placing frame 10 are combined into a U-shaped frame with a gap in the middle for storing pipe fittings, the L-shaped plate 7 is provided with an adjusting mechanism for adjusting the distance between the fixed block 6 and the sliding block 8, a plurality of upper springs 23 are fixedly connected between the inner side of the bottom groove 21 and the side wall of the connecting plate 14, the upper springs 23 facilitate the resetting of the connecting plate 14, the horizontal plate 5 and the fixed block 6, a pair of guide rods 24 are fixedly connected to the side wall of the sliding frame 4 and penetrate the machine box base 1, the guide rods 24 limit the sliding position of the sliding frame 4, a pair of lower springs 25 are fixedly connected between the side wall of the machine box base 1 and the side wall of the sliding frame 4, and the lower springs 25 facilitate the resetting of the sliding frame 4;

[0035] Before the water heating pipe fittings are processed, the material box is placed below the discharge chute 39, and the pipe fittings to be processed are placed between the upper placing frame 9 and the lower placing frame 10, then the lower electric telescopic cylinder 19 is controlled to start and pull the side plate 20 and the sliding plate 16 to move, and then the inclined chute 17 on the sliding plate 16 extrudes the round rod 15 to slide, thereby pushing the connecting plate 14, the slide rod 13 and the horizontal plate 5 to move and gradually compressing the upper spring 23, while driving the fixed block 6 and the sliding block 8 to move, thereby driving the upper placing frame 9 and the lower placing frame 10 to move (at this time, if the adjusting frame 33 is in a vertical state, the upper placing frame 9 and the lower placing frame 10 will be vertically pulled to the corresponding position of the gas inflation shaft 2, if longer pipe fittings are fed, the adjusting frame 33 is in an inclined state, which will be driven by the horizontal plate 5 to drive the fixed block 6 to slide on the inclined adjusting frame 33, and under the guidance of the straight chute 34, the upper placing frame 9 and the lower placing frame 10 will be pulled to the corresponding position of the gas inflation shaft 2, and the distance between the upper placing frame 9 and the gas inflation shaft 2 in this case is different from that in the vertical pulling case), and the pipe fittings in the storage frame are moved to the corresponding position of the gas inflation shaft 2, so that the discharge port 11 is aligned with the gas inflation shaft 2;

[0036] Subsequently, the fixed block 6 moves to the side of the limiting plate 29, at this time, the top plate 18 moves to the side wall of the sliding frame 4, and is released from the limiting mechanism under the pushing of the horizontal plate 5, and then continues to drive the electric telescopic cylinder 19, pushes the sliding frame 4 through the top plate 18, and moves the guide rod 24, and gradually compresses the lower spring 25, so that the inflatable shaft 2 is inserted into the pipe in the upper placing frame 9 and the lower placing frame 10 (it should be noted that the side wall of the cabinet base 1 below the inflatable shaft 2 needs to be provided with a storage groove to avoid hindering the normal movement of the sliding frame 4), and then after the inflatable shaft 2 is fully inserted, the cabinet base 1 will squeeze the touch sensor 22, and then control the inflatable shaft 2 to start supporting and clamping the inner wall of the pipe, and then control the electric telescopic cylinder 19 to reset, thereby reversing the above operation to reset, thereby realizing automatic feeding of the water heating pipe, and the upper placing frame 9 and the lower placing frame 10 can be removed to avoid hindering the normal processing of the threaded processing assembly.

[0037] In order to improve the automation degree of the device, the touch sensor 22 is fixedly connected to the side wall of the upper placing frame 9 beside the discharge port 11, and the touch sensor 22 is electrically connected with the electric telescopic cylinder 19 through the controller. Through the setting of the touch sensor 22, when the pipe is fully inserted into the inflatable shaft 2, the side wall of the cabinet base 1 will squeeze the touch sensor 22, and then the touch sensor 22 will transmit a signal to the controller, and then the controller controls the electric telescopic cylinder 19 to stop running and controls the inflatable shaft 2 to start, clamping the pipe, and then controlling the electric telescopic cylinder 19 to reset, thereby realizing the automatic operation of the device.

[0038] In order to be able to move the fixed block 6 to the side of the limiting plate 29 to limit the sliding position of the sliding frame 4, the limiting mechanism comprises a limiting plate 26, a lower groove 27 is provided on the top of the cabinet base 1 beside the sliding frame 4, and the limiting plate 26 is slidably connected to the inner side of the lower groove 27. It should be noted that the limiting plate 26 is provided in an L-shaped form, which can ensure that the lower end of the limiting plate 26 is squeezed out of the side of the sliding frame 4 when the horizontal plate 5 slides to the side of the limiting plate 29, and the middle part of the limiting plate 26 is hollow, which avoids hindering the movement of the adjusting frame 33. The limiting spring 28 is fixedly connected between the inner side of the lower groove 27 and the side wall of the limiting plate 26, and the horizontal plate 5 is provided through the outer wall of the sliding frame 4 on the side close to the limiting plate 26. Through the setting of the limiting plate 26, the lower groove 27 and the limiting spring 28, the sliding position of the sliding frame 4 can be limited when the inclined groove 17 extrudes the round rod 15 to drive the horizontal plate 5 to slide on the sliding frame 4, which avoids the displacement of the sliding frame 4 under the extrusion of the inclined groove 17, thereby affecting the normal operation of the device.

[0039] When the fixed block 6 is about to move to the position aligned with the inflatable shaft 2, the horizontal plate 5 pushes the limiting plate 26 to slide in the lower groove 27 and gradually compresses the limiting spring 28, then when the horizontal plate 5 moves to the side of the limiting plate 29, the horizontal plate 5 pushes the lower end of the limiting plate 26 away from the sliding frame 4, so that the lower end of the limiting plate 26 moves to the rear side of the sliding frame 4, thereby releasing the limitation of the sliding frame 4, then driving the sliding frame 4 to move, the upper end of the limiting plate 26 moves on the side wall of the horizontal plate 5, keeping the extrusion of the limiting plate 26, and the bottom of the limiting plate 29 is flush with the bottom of the horizontal plate 5, but the height of the limiting plate 29 is lower than the height of the horizontal plate 5, so it does not hinder the normal operation of the device, and finally the limiting plate 26 is pushed back to its original position under the elastic force of the limiting spring 28, the top of the sliding frame 4 is fixedly connected with the limiting plate 29 for limiting the sliding position of the horizontal plate 5, through the limiting plate 29, the sliding position of the horizontal plate 5 can be limited, so that the pipes in the upper placing frame 9 and the lower placing frame 10 can be accurately inserted into the inflatable shaft 2, improving the stability during the feeding process of the device, and the height of the limiting plate 29 is lower than the height of the horizontal plate 5, so that the extrusion of the limiting plate 26 by the horizontal plate 5 is not affected.

[0040] In order to automatically feed water heating pipes of different lengths, the adjusting mechanism comprises a threaded rod 30 rotatably connected between the L-shaped plate 7 and the fixed block 6, a rotating block 31 fixedly connected to the side wall of the threaded rod 30 and penetrating through the L-shaped plate 7, and the threaded rod 30 penetratingly and threadedly connected to the inner side wall of the sliding block 8, and a pair of guide blocks 32 fixedly connected to the side wall of the sliding block 8 and penetrating through the outer wall of the fixed block 6, through the guide blocks 32, the sliding block 8 can be guided during the movement of the rotating threaded rod 30 to drive the sliding block 8, avoiding the rotation of the sliding block 8 with the threaded rod 30, and improving the stability during the adjustment process.

[0041] An adjusting frame 33 is arranged in the sliding frame 4 and rotatably connected to the inner bottom end of the sliding frame 4 near the bottom end of the side of the upper placing frame 9, a straight groove 34 is formed in the top of the horizontal plate 5, through the straight groove 34, the sliding of the fixed block 6 on the horizontal plate 5 can be guided, an adjusting rod 35 is fixedly connected to the bottom of the fixed block 6 and arranged in the straight groove 34, and the bottom end of the adjusting rod 35 is inserted into the inner side of the adjusting frame 33, a lower plate 36 is fixedly connected to the side wall of the adjusting frame 33, a screw rod 37 is threadedly connected to the top of the lower plate 36, a plurality of fixed grooves 38 are equally and circularly arranged on the inner bottom end of the sliding frame 4, the centers of the circular distribution of the fixed grooves 38 are the same as the rotating center of the adjusting frame 33, the fixed grooves 38 are arranged at positions corresponding to the screw rod 37, and the bottom end of the screw rod 37 is inserted into the inner side of one of the fixed grooves 38, through the rotating of the screw rod 37 into the corresponding fixed groove 38, the position of the adjusting frame 33 can be fixed, ensuring the stability during the feeding process.

[0042] When the water heating pipe of different length needs to be fed, the rotating block 31 is first rotated to drive the threaded rod 30 to rotate, and then the sliding block 8 connected with the threaded rod 30 is moved on the L-shaped plate 7, and the guide block 32 is moved on the fixed block 6, so that the distance between the fixed block 6 and the sliding block 8 is adjusted, and the distance between the upper placing frame 9 and the lower placing frame 10 is adjusted (the guide block 32 can be provided with scales, so that the distance between the upper placing frame 9 and the lower placing frame 10 can be accurately adjusted), so that the water heating pipe of the length to be fed can be stored;

[0043] Then the screw rod 37 is rotated upward to move, the screw rod 37 is rotated out of the fixed groove 38, the rotation of the adjusting frame 33 is limited, and then the adjusting frame 33 is rotated around the rotating part (the inner bottom end of the sliding frame 4 can be provided with an arc-shaped scale, so that the rotating position of the adjusting frame 33 can be accurately adjusted), after the adjusting frame 33 is adjusted to the specified inclined position, the screw rod 37 is rotated downward to move in the opposite direction, the bottom end of the screw rod 37 is inserted into the corresponding fixed groove 38, the position of the adjusting frame 33 is fixed, and then when the horizontal plate 5 pulls the fixed block 6 to move, the adjusting rod 35 at the bottom of the fixed block 6 slides in the inclined adjusting frame 33, so that the fixed block 6 can be driven to move away from the air inflation shaft 2, the distance of the subsequent upper placing frame 9 sliding out of the air inflation shaft 2 is increased, and the water heating pipe of different length can be automatically fed, and the universal performance of the device is improved.

[0044] In order to discharge the pipe after processing, the top end of the case base 1 and below the air inflation shaft 2 is provided with a discharge slot 39, through the arrangement of the discharge slot 39, the water heating pipe pushed out by the pushing mechanism 3 can be quickly discharged, the front side of the case base 1 and below the discharge slot 39 is provided with a collecting groove 40, the collecting groove 40 is slidably connected with a collecting box 41, and a plurality of filter holes 42 are arranged at the bottom of the discharge slot 39 and above the collecting groove 40, and through the arrangement of the filter holes 42, most of the debris generated in the processing of the water heating pipe can be discharged into the collecting box 41 in the collecting groove 40 for unified recycling, so that the pipe and the debris can be separated and collected.

[0045] The above shows and describes the basic principles, main features and advantages of the present application.

[0046] Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application.

Claims

1. A positioning device for processing water heating pipe fittings, comprising a chassis base (1), and an air shaft (2) arranged on the rotating end of the chassis base (1), and a pushing mechanism (3) for pushing out the pipe fittings processed on the air shaft (2) is provided on the chassis base (1) and outside the air shaft (2), characterized in that: The top of the chassis base (1) is slidably connected to a sliding frame (4), the inner side of the sliding frame (4) is slidably connected to a transverse plate (5), the top of the transverse plate (5) is provided with a fixed block (6), the top of the fixed block (6) is obliquely fixedly connected to an upper placement frame (9), and the upper placement frame (9) is provided with a discharge port (11) on the side close to the inflatable shaft (2), and a lower placement frame (10) is provided next to the upper placement frame (9); Both ends of the inner side of the sliding frame (4) are provided with a sliding groove (12), the bottom of the sliding frame (4) is provided with a bottom groove (21), the inner side of the bottom groove (21) is slidably connected to a connecting plate (14), and a sliding rod (13) is fixedly connected between the transverse plate (5) and the connecting plate (14) and located inside the sliding groove (12). The top of the chassis base (1) and below the sliding frame (4) is provided with an inward-sunk groove (43), the middle part of the bottom end of the connecting plate (14) is fixedly connected to a round rod (15), and the inner side of the groove (43) is slidably connected to a slide plate (16). The top of the slide plate (16) is provided with an inclined groove (17) for squeezing the round rod (15); the top of the slide plate (16) away from the inflatable shaft (2) is fixedly connected to a top plate (18) for pushing the sliding frame (4) to move; the side wall of the chassis base (1) is fixedly connected with an electric telescopic cylinder (19); the side wall of the slide plate (16) is fixedly connected with a side plate (20); the output end of the electric telescopic cylinder (19) is fixedly connected to the side wall of the side plate (20); and a limiting mechanism for limiting the sliding position of the sliding frame (4) is provided on the chassis base (1).

2. The internal positioning device for plumbing pipe processing according to claim 1, characterized in that: The side wall of the fixed block (6) is fixedly connected to an L-shaped plate (7), the upper portion of the L-shaped plate (7) is slidably connected to a sliding block (8), the lower placement frame (10) is tilted and fixedly connected to the top of the sliding block (8), the upper placement frame (9) and the lower placement frame (10) are combined to form a U-shaped frame with a gap in the middle for storing pipe fittings, and the L-shaped plate (7) is provided with an adjustment mechanism for adjusting the distance between the fixed block (6) and the sliding block (8).

3. The internal positioning device for plumbing pipe processing according to claim 1, characterized in that: A touch sensor (22) is fixedly connected to the side wall of the upper placement frame (9) and located next to the discharge port (11), and the touch sensor (22) is electrically connected to the electric telescopic cylinder (19) through a controller.

4. The internal positioning device for processing water heating pipes according to claim 1, characterized in that: A plurality of upper springs (23) are fixedly connected between the inner side of the bottom groove (21) and the side wall of the connecting plate (14); a pair of guide rods (24) are fixedly connected to the side wall of the sliding frame (4) and are arranged to pass through the chassis base (1); and a pair of lower springs (25) are fixedly connected between the side wall of the chassis base (1) and the side wall of the sliding frame (4).

5. The internal positioning device for processing water heating pipes according to claim 1, characterized in that: The limiting mechanism includes a limiting plate (26), a lower groove (27) is provided at the top of the chassis base (1) and next to the sliding frame (4), the limiting plate (26) is slidably connected to the inner side of the lower groove (27), a limiting spring (28) is fixedly connected between the inner side of the lower groove (27) and the side wall of the limiting plate (26), a limiting plate (29) for limiting the sliding position of the transverse plate (5) is fixedly connected to the top of the sliding frame (4), and the transverse plate (5) is arranged to pass through the outer wall of the sliding frame (4) on the side close to the limiting plate (26).

6. The internal positioning device for processing water heating pipes according to claim 2, characterized in that: The adjusting mechanism comprises a threaded rod (30), the threaded rod (30) being rotatably connected between the L-shaped plate (7) and the fixed block (6), the side wall of the threaded rod (30) passing through the L-shaped plate (7) and being fixedly connected to a rotating block (31), and the threaded rod (30) passing through the threaded connection to the inner side wall of the sliding block (8), and the side wall of the sliding block (8) being fixedly connected to a pair of guide blocks (32) arranged through the outer wall of the fixed block (6).

7. The internal positioning device for processing water heating pipes according to claim 1, characterized in that: The inner side of the sliding frame (4) is provided with an adjusting frame (33), and the bottom end of the adjusting frame (33) close to the upper placement frame (9) is rotatably connected to the inner bottom end of the sliding frame (4). The top of the horizontal plate (5) is provided with a straight groove (34). The bottom of the fixed block (6) is fixedly connected to an adjusting rod (35) located inside the straight groove (34), and the bottom end of the adjusting rod (35) is inserted into the inner side of the adjusting frame (33). The side wall of the adjusting frame (33) is fixedly connected to a lower plate (36). The top of the lower plate (36) is threadedly connected to a screw (37). The inner bottom end of the sliding frame (4) is provided with a plurality of fixed grooves (38) at equal intervals in an arc shape, and the centers of the circumferential distribution of the plurality of fixed grooves (38) are the same as the rotation center of the adjusting frame (33). The fixed grooves (38) are arranged at positions corresponding to the screws (37), and the bottom end of the screw (37) is inserted into the inner side of one of the fixed grooves (38).

8. The internal positioning device for processing water heating pipes according to claim 1, characterized in that: A discharge trough (39) is provided at the top of the chassis base (1) and below the inflatable shaft (2); a collection trough (40) is provided at the front side of the chassis base (1) and below the discharge trough (39); a collection box (41) is slidably connected to the inside of the collection trough (40); and a plurality of filter holes (42) are provided at the bottom of the discharge trough (39) and above the collection trough (40).

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