High-precision pipe fitting cutting device

Abstract

The invention relates to the field of pipe fitting machining, in particular to a high-precision pipe fitting cutting device. A high-precision pipe fitting cutting device comprises a base and the like, a supporting plate is fixedly connected to the base, a moving groove is formed in the base, a servo motor is fixedly connected to the supporting plate, an inner supporting mechanism is arranged on the base, and a pipe fitting is placed on the inner supporting mechanism. The movable plate continues to drive the power motor and the cutting wheel to retract, the cutting wheel cuts into the inner side of the pipe fitting, then the interior of the pipe fitting is tightly supported through six inner supporting seats and inner supporting blocks so that the pipe fitting can be stably cut, then the pipe fitting is driven to rotate forwards, and then the pipe fitting can be stably and annularly cut through the cutting wheel.

Description

Technical Field

[0001] The invention relates to the field of pipe processing, and in particular to a high-precision pipe cutting device. Background Art

[0002] In daily life, the use of pipe fittings is indispensable, but they need to be cut before use so that they reach the required length for easy use.

[0003] Existing pipe cutting equipment usually expands the pipe from the inside out to clamp it, and then cuts the pipe with a cutting wheel. However, expanding the pipe from the inside out results in insufficient support on the outside of the pipe, and the pipe is not clamped sufficiently, which can easily cause the pipe to vibrate slightly during the cutting process of the cutting wheel. The slight vibration of the pipe can easily cause slight movement, which can easily make the cutting surface of the pipe uneven, resulting in poor cutting quality of the pipe by the cutting wheel. At the same time, due to the cutting force and friction of the cutting wheel during the cutting process of the cutting wheel, the cutting area of ​​the pipe is easily deformed or warped, resulting in poor flatness of the cut of the cut pipe. Summary of the invention

[0004] In order to overcome the shortcomings of existing pipe cutting equipment that the pipe is not clamped sufficiently, which easily makes the cut surface of the pipe uneven, and also easily causes the cut area of ​​the pipe to deform or warp, resulting in poor flatness of the cut of the pipe, the present invention provides a high-precision pipe cutting device that can clamp both the inner and outer sides of the pipe, so that the pipe is clamped more sufficiently, thereby improving the cutting quality of the cutting wheel on the pipe, and also improving the flatness of the cut of the pipe.

[0005] The technical implementation scheme of the present invention is: a high-precision pipe cutting device, comprising a base, a support plate fixedly connected to the base, a movable groove opened on the base, a servo motor fixedly connected to the support plate, an internal support mechanism provided on the base, a pipe placed on the internal support mechanism, the internal support mechanism used to support the inside of the pipe, and a cutting mechanism provided on the base, the cutting mechanism used to cut the pipe.

[0006] More preferably, the internal support mechanism includes a power shaft, the power shaft is fixedly connected to the output shaft of the servo motor, the power shaft passes through the base, the power shaft is fixedly connected to a limiting groove ring, the surface of the limiting groove ring is provided with a curved groove, two groups of fixed support plates are fixedly connected to the power shaft, each group of the fixed support plates is two, each of the fixed support plates has three slide grooves, a rotating ring body is provided between the two fixed support plates of each group, the two rotating ring bodies are rotatably connected to the power shaft, each of the rotating ring bodies has six grooves, each of the rotating ring bodies is slidably connected to three inner support seats, the three slide grooves on the two fixed support plates of each group are respectively slidably connected to the two sides of the three inner support seats, each of the inner support seats has a groove, and an inner support block is installed on the groove of each of the inner support seats.

[0007] More preferably, each of the inner support blocks is made of rubber.

[0008] More preferably, the cutting mechanism includes an electric push rod, the electric push rod is fixedly connected to the base, a movable plate is fixedly connected to the telescopic rod of the electric push rod, a movable plate is slidably connected to the movable groove of the base, a power motor is fixedly connected to the movable plate, a cutting wheel is fixedly connected to the output shaft of the power motor, and the cutting wheel is used to cut the pipe.

[0009] The lockhole that is formed on the two ends of the support frame is formed on the upper sprocket wheel, the lower sprocket wheel is equipped with a toothed structure, and the toothed structure is that the toothed structure is in the upper sprocket wheel, and the lower sprocket wheel is equipped with a toothed structure.

[0010] More preferably, each of the outer clamping blocks is made of rubber.

[0011] More preferably, one side of the two fixed bevel rings is a bevel.

[0012] More preferably, a clamping mechanism is also included, which is arranged on the two moving rods, and is used to clamp the cut part of the pipe fitting. The clamping mechanism includes a fixed oblique block, and the two moving rods are fixedly connected with a fixed oblique block, and the two fixed plates are slidably connected with a lifting rod, and a tension spring is connected between each lifting rod and each fixed plate, and an extrusion round rod is fixedly connected to each lifting rod, and the extrusion round rod is in contact with the fixed oblique block, and a clamping ring is fixedly connected to the end of each lifting rod away from the tension spring, and the two clamping rings are used to clamp the pipe fitting.

[0013] More preferably, the two clamping rings are located between the six outer clamping seats.

[0014] More preferably, the two clamping rings have cutouts on one side close to the cutting wheel.

[0015] Compared with the prior art, the present invention has the following advantages: 1. Through the six inner support seats and the inner support blocks, the pipe fittings are also driven to rotate forward. At the same time, the telescopic rod of the electric push rod retracts to drive the movable plate to retract along the movable groove of the base. The retraction of the movable plate also drives the power motor and the cutting wheel to retract together. The cutting wheel contacts the outer side of the pipe fitting, and the cutting wheel cuts the pipe fitting. The movable plate continues to drive the power motor and the cutting wheel to retract, and the cutting wheel cuts into the inner side of the pipe fitting, and then through the six inner support seats and the inner support blocks, the inside of the pipe fitting is first tightened so that the pipe fitting can be cut stably, and then the pipe fitting is driven to rotate forward, and then through the cutting wheel, the pipe fitting can be stably cut in an annular shape. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the first three-dimensional structure in an embodiment of the present invention.

[0017] Figure 2 Schematic diagram of the second three-dimensional structure in an embodiment of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the base, support plate, servo motor, fixing plate and pipe fittings in an embodiment of the present invention.

[0019] Figure 4 It is a partial three-dimensional structural schematic diagram of the inner support mechanism in an embodiment of the present invention.

[0020] Figure 5 It is a partial three-dimensional structural schematic diagram of the inner supporting mechanism and the cutting mechanism in the embodiment of the present invention.

[0021] Figure 6 It is a schematic diagram of the disassembled three-dimensional structure of the inner support mechanism in an embodiment of the present invention.

[0022] Figure 7 It is a partial three-dimensional structural schematic diagram of the outer clamping mechanism and the pressing mechanism in an embodiment of the present invention.

[0023] Figure 8 Schematic diagram of a partial three-dimensional structure of the outer clamping mechanism in an embodiment of the present invention.

[0024] Fig. 9 It is a schematic diagram of the three-dimensional structure of the fixing ring, the sliding seat and the outer clamping seat in the embodiment of the present invention.

[0025] Fig.10 It is a schematic diagram of the three-dimensional structure of the fixing ring, the sliding seat, the outer clamping seat, the return spring and the outer clamping block in the embodiment of the present invention.

[0026] Fig.11 Practical Figure 8 Schematic diagram of the enlarged three-dimensional structure of A in the middle.

[0027] The markings of the components in the accompanying drawings are as follows: 1. base, 2. support plate, 3. servo motor, 41. power shaft, 42. limit groove ring, 43. rotating ring body, 44. fixed support plate, 45. inner support seat, 46. inner support block, 5. pipe fittings, 61. electric push rod, 62. moving plate, 63. power motor, 64. cutting wheel, 71. fixed plate, 72. fixed ring, 73. sliding seat, 74. outer clamp seat, 75. reset spring, 76. outer clamp block, 77. moving rod, 78. fixed round rod, 79. fixed bevel ring, 81. fixed oblique block, 82. lifting rod, 83. extrusion round rod, 84. tension spring, 85. clamping ring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] Embodiment 1: A high-precision pipe cutting device, such as Figure 1 - Figure 7 As shown, it includes a base 1, a support plate 2 is welded on the base 1, a movable groove is opened on the base 1, a servo motor 3 is fixedly connected to the support plate 2, an internal support mechanism is provided on the base 1, a pipe 5 is placed on the internal support mechanism, the internal support mechanism is used to open the inside of the pipe 5, and a cutting mechanism is provided on the base 1, and the cutting mechanism is used to cut the pipe 5.

[0030] The inner support mechanism includes a power shaft 41, the power shaft 41 is fixedly connected to the output shaft of the servo motor 3, the power shaft 41 passes through the base 1, a limiting groove ring 42 is welded on the power shaft 41, a curved groove is opened on the surface of the limiting groove ring 42, the limiting groove ring 42 is used to limit the pipe 5, two groups of fixed support plates 44 are welded on the power shaft 41, each group of the fixed support plates 44 is two, each of the fixed support plates 44 is opened with three slide grooves, and a rotating ring body 43 is provided between the two fixed support plates 44 of each group, and the two are The rotating ring body 43 is rotatably connected to the power shaft 41, and each of the rotating ring bodies 43 is provided with six grooves. Each of the rotating ring bodies 43 is slidably connected with three inner support seats 45. The three sliding grooves on the two fixed support plates 44 of each group are respectively slidably connected to the two sides of the three inner support seats 45. Each of the inner support seats 45 is provided with a groove. The inner support seat 45 and the inner support block 46 are used to tighten the inner side of the pipe 5. An inner support block 46 is installed on the groove of each inner support seat 45, and each of the inner support blocks 46 is made of rubber.

[0031] The cutting mechanism includes an electric push rod 61, which is fixedly connected to the base 1, a movable plate 62 is welded on the telescopic rod of the electric push rod 61, the movable plate 62 is slidably connected to the movable groove of the base 1, and a power motor 63 is fixedly connected to the movable plate 62. The movable plate 62 is used to support the power motor 63, and a cutting wheel 64 is fixedly connected to the output shaft of the power motor 63. The cutting wheel 64 is used to cut the pipe 5.

[0032] When it is necessary to cut the pipe 5, the user puts the pipe 5 into the power shaft 41, the rotating ring body 43, the fixed support plate 44, the inner support seat 45 and the inner support block 46, so that one end of the pipe 5 contacts the limit groove ring 42, and then the user starts the power motor 63, the servo motor 3 and the electric push rod 61. The power motor 63 starts to drive the cutting wheel 64 to rotate, and the output shaft of the servo motor 3 rotates forward to drive the power shaft 41, the limit groove ring 42 and the four fixed support plates 44 to rotate forward together. The four fixed support plates 44 rotate forward and push the six inner support seats 45 to move along the grooves of the two rotating ring bodies 43 through the three slide grooves on the fixed support plates 44. The six inner support seats 45 move to drive the six inner support blocks 46 to contact the inner side surface of the pipe fitting 5. The six inner support seats 45 continue to move, and the inner side surface of the pipe fitting 5 squeezes the six inner support blocks 46. The power shaft 41 continues to drive the power shaft 41, the rotating ring body 43, the fixed support plate 44, the inner support seats 45 and the inner support blocks 46 to rotate forward. Through the six inner support seats 45 and the inner support blocks 46, the pipe fitting 5 is also driven to rotate forward together. At the same time, the telescopic rod of the electric push rod 61 retracts and drives the moving plate 62 to retract along the moving groove of the base 1. The retraction of the moving plate 62 drives the power motor 63 and the cutting wheel 64 to retract together. The cutting wheel 64 contacts the outer side surface of the pipe fitting 5. The cutting wheel 64 cuts the pipe 5, and the moving plate 62 continues to drive the power motor 63 and the cutting wheel 64 to retract. The cutting wheel 64 cuts into the inner side of the pipe 5, and then passes through the six inner support seats 45 and the inner support blocks 46, thereby first tightening the inside of the pipe 5 so that the pipe 5 can be cut stably, and then drives the pipe 5 to rotate forward, and then passes through the cutting wheel 64, so that the pipe 5 can be stably cut in an annular shape. When the cutting wheel 64 completes the cutting of the pipe 5, the user turns off the power motor 63 and adjusts the output shaft of the servo motor 3 to reverse, and also starts the telescopic rod of the electric push rod 61 to extend. The power motor 63 is turned off and no longer drives the cutting wheel 64 The cutting wheel 64 stops cutting the pipe 5, and the output shaft of the servo motor 3 reverses, driving the power shaft 41, the limit groove ring 42 and the four fixed support disks 44 to reverse together. The four fixed support disks 44 are reset, driving the six inner support seats 45 and the six inner support blocks 46 to reset as well. The six inner support blocks 46 are no longer in contact with the inner side of the pipe 5. The extension of the telescopic rod of the electric push rod 61 also drives the movable plate 62, the power motor 63 and the cutting wheel 64 to reset, and the cutting wheel 64 is out of contact with the pipe 5. Finally, the user removes the cut pipe 5 from the power shaft 41, the rotating ring body 43, the fixed support disk 44, the inner support seat 45 and the inner support block 46.

[0033] Embodiment 2: Based on embodiment 1, Figure 8 - Fig.10As shown, it also includes an external clamping mechanism, which is arranged on the base 1 and is used to clamp the surface of the pipe 5. The external clamping mechanism includes a fixing plate 71. Two fixing plates 71 are welded on the base 1. The two fixing plates 71 are symmetrically arranged. Two fixing rings 72 are welded between the two fixing plates 71. An annular groove is opened on the two fixing rings 72. Three sliding seats 73 are slidably connected to the annular groove of each fixing ring 72. Each sliding seat 73 is slidably connected to an external clamping seat 74. A reset spring 75 is connected between each sliding seat 73 and each external clamping seat 74. Each external clamping seat 74 is away from each reset spring. One side of the positioning spring 75 is fixedly connected with an outer clamping block 76, and the outer clamping seat 74 and the outer clamping block 76 are used to clamp the outer surface of the pipe 5. Each of the outer clamping blocks 76 is made of rubber. The two fixed plates 71 are slidably connected with a moving rod 77, and a fixed round rod 78 is welded on the upper moving rod 77. The bottom of the fixed round rod 78 is slidably connected to the curved groove of the limiting groove ring 42. Two fixed bevel rings 79 are welded between the two moving rods 77. The two fixed bevel rings 79 are used to push the six outer clamping seats 74. The two fixed bevel rings 79 are in contact with the six outer clamping seats 74, and one side of the two fixed bevel rings 79 is a bevel.

[0034] The limiting groove ring 42 rotates through the curved groove on the limiting groove ring 42 to push the fixed round rod 78, the two moving rods 77 and the two fixed bevel rings 79 to move in the direction away from the servo motor 3. The two fixed bevel rings 79 push the three outer clamping seats 74 and the three outer clamping blocks 76 to move in the direction close to the outer surface of the pipe fitting 5 through the bevel on the fixed bevel ring 79. The reset spring 75 is compressed, and the six outer clamping blocks 76 contact the outer surface of the pipe fitting 5 at the same time. The six outer clamping seats 74 continue to move in the direction close to the outer surface of the pipe fitting 5. The outer surface of the pipe fitting 5 squeezes the six outer clamping blocks 76 to deform, and the outer surface of the pipe fitting 5 is clamped by the three outer clamping seats 74 and the three outer clamping blocks 76 on both sides at the same time. At the same time, the six inner support seats 45 and the six inner support blocks 46 also drive the three sliding seats 73, the three outer clamping seats 74 and the three outer clamping blocks 76 on both sides through the pipe fitting 5 to rotate forward at the same time. The outer clamping seats 74 all rotate along the fixed bevel ring 79 on the same side, and by clamping the inner and outer surfaces of the pipe, it is convenient to clamp the pipe fitting 5 more fully, so that the cutting wheel 64 can cut the pipe fitting 5 more stably, and at the same time, it can also rotate the pipe fitting 5 more stably for circular cutting, thereby improving the flatness of the incision of the pipe fitting 5 and thus improving the cutting quality. When the circular cutting of the pipe fitting 5 is completed, the user turns off the servo motor 3, the power shaft 41 and the limit groove ring 42 rotate just one circle, and the fixed round rod 78, the two moving rods 77 and the two fixed bevel rings 79 are reset. Under the action of the reset spring 75, the two fixed bevel rings 79 are reset and no longer squeeze the six outer clamping seats 74 and the six outer clamping blocks 76. The output shaft of the servo motor 3 no longer drives the power shaft 41 and the limit groove ring 42 to rotate, and the six sliding seats 73, the six outer clamping seats 74, the six outer clamping blocks 76 and the pipe fitting 5 no longer rotate.

[0035] Embodiment 3: Based on embodiment 2, Fig.11 As shown, it also includes a clamping mechanism, which is arranged on the two moving rods 77, and is used to clamp the cutting part of the pipe fitting 5. The clamping mechanism includes a fixed oblique block 81, and the two moving rods 77 are welded with fixed oblique blocks 81. The two fixed plates 71 are slidably connected with lifting rods 82, and a tension spring 84 is connected between each lifting rod 82 and each fixed plate 71. An extrusion round rod 83 is welded on each lifting rod 82, and the fixed oblique block 81 is used to extrude the extrusion round rod 83, and the extrusion round rod 83 is in contact with the fixed oblique block 81. A clamping ring 85 is welded on one end of each lifting rod 82 away from the tension spring 84, and the two clamping rings 85 are used to clamp the pipe fitting 5. The two clamping rings 85 are located between the six outer clamping seats 74, and the two clamping rings 85 have incisions on one side close to the cutting wheel 64.

[0036] The two moving rods 77 move in a direction away from the servo motor 3 and drive the two fixed oblique blocks 81 to move at the same time. The two fixed oblique blocks 81 move and squeeze the two lifting rods 82, the two extruding round rods 83 and the two clamping rings 85 in a direction approaching each other. The two tension springs 84 are stretched, and the two clamping rings 85 move in a direction approaching each other to clamp the to-be-cut portion of the outer surface of the pipe fitting 5, so that when the cutting wheel 64 cuts the pipe fitting 5, the vibration of the cutting surface of the pipe by the cutting wheel 64 is reduced, thereby further improving the stability of the cutting surface of the pipe, making the cutting surface of the pipe fitting 5 smoother, and further improving the cutting quality. After the cutting of the pipe fitting 5 is completed, the two moving rods 77 are reset and drive the two fixed oblique blocks 81 to reset at the same time. Under the reset of the two tension springs 84, the two lifting rods 82, the two extruding round rods 83 and the two clamping rings 85 move in a direction away from each other, and the two clamping rings 85 no longer clamp the to-be-cut portion of the outer surface of the pipe fitting 5.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high-precision pipe cutting device, characterized by: The invention comprises a base (1), a support plate (2) is fixedly connected to the base (1), a movable groove is provided on the base (1), a servo motor (3) is fixedly connected to the support plate (2), an internal support mechanism is provided on the base (1), a pipe (5) is placed on the internal support mechanism, the internal support mechanism is used to open the inside of the pipe (5), and a cutting mechanism is provided on the base (1), the cutting mechanism is used to cut the pipe (5).

2. A high-precision pipe cutting device according to claim 1, characterized in that: The supporting mechanism comprises a power shaft (41), the power shaft (41) is fixedly connected to the output shaft of the servo motor (3), the power shaft (41) passes through the base (1), the power shaft (41) is fixedly connected to a limit groove ring (42), the surface of the limit groove ring (42) is provided with a curved groove, and two groups of fixed support plates (44) are fixedly connected to the power shaft (41), each group of the fixed support plates (44) is two, each of the fixed support plates (44) is provided with three slide grooves, and each group of two fixed support plates (44) is provided with a plurality of sliding grooves. A rotating ring body (43) is provided between the two rotating ring bodies (43), and the two rotating ring bodies (43) are rotatably connected to the power shaft (41). Six grooves are provided on each rotating ring body (43), and three inner support seats (45) are slidably connected to each rotating ring body (43). The three sliding grooves on the two fixed support plates (44) in each group are respectively slidably connected to the two sides of the three inner support seats (45), and each inner support seat (45) has a groove, and an inner support block (46) is installed on the groove of each inner support seat (45).

3. A high-precision pipe cutting device according to claim 2, characterized in that: Each of the inner support blocks (46) is made of rubber.

4. A high-precision pipe cutting device according to claim 3, characterized in that: The cutting mechanism comprises an electric push rod (61), the electric push rod (61) is fixedly connected to the base (1), a movable plate (62) is fixedly connected to the telescopic rod of the electric push rod (61), the movable groove of the base (1) is slidably connected to the movable plate (62), the movable plate (62) is fixedly connected to a power motor (63), and a cutting wheel (64) is fixedly connected to the output shaft of the power motor (63), and the cutting wheel (64) is used for cutting the pipe (5).

5. A high-precision pipe cutting device according to claim 4, characterized in that: The invention also comprises an external clamping mechanism, which is arranged on the base (1) and is used to clamp the surface of the pipe (5). The external clamping mechanism comprises a fixing plate (71). Two fixing plates (71) are fixedly connected to the base (1). The two fixing plates (71) are symmetrically arranged. Two fixing rings (72) are fixedly connected between the two fixing plates (71). Both fixing rings (72) are provided with an annular groove. Three sliding seats (73) are slidably connected to the annular groove of each fixing ring (72). Each sliding seat (73) is slidably connected to an external clamping seat (74). Each sliding seat (74) is slidably connected to the external clamping seat (75). A reset spring (75) is connected between each of the outer clamp seats (73), and an outer clamp block (76) is fixedly connected to the side of each of the outer clamp seats (74) away from each of the reset springs (75). A moving rod (77) is slidably connected to the two fixed plates (71), and a fixed round rod (78) is fixedly connected to the upper moving rod (77), and the bottom of the fixed round rod (78) is slidably connected to the curved groove of the limiting groove ring (42). Two fixed bevel rings (79) are fixedly connected between the two moving rods (77), and the two fixed bevel rings (79) are in contact with the six outer clamp seats (74).

6. A high-precision pipe cutting device according to claim 5, characterized in that: Each of the outer clamping blocks (76) is made of rubber.

7. A high-precision pipe cutting device according to claim 6, characterized in that: One side of the two fixed bevel rings (79) is a bevel.

8. A high-precision pipe cutting device according to claim 7, characterized in that: The invention also comprises a clamping mechanism, which is arranged on the two moving rods (77) and is used to clamp the cut part of the pipe fitting (5). The clamping mechanism comprises a fixed oblique block (81). The two moving rods (77) are fixedly connected with the fixed oblique block (81). The two fixed plates (71) are slidably connected with lifting rods (82). A tension spring (84) is connected between each lifting rod (82) and each fixed plate (71). An extrusion round rod (83) is fixedly connected to each lifting rod (82). The extrusion round rod (83) is in contact with the fixed oblique block (81). One end of each lifting rod (82) away from the tension spring (84) is fixedly connected with a clamping ring (85). The two clamping rings (85) are used to clamp the pipe fitting (5).

9. A high-precision pipe cutting device according to claim 8, characterized in that: The two clamping rings (85) are located between the six outer clamping seats (74).

10. A high-precision pipe cutting device according to claim 9, characterized in that: The two clamping rings (85) are both provided with cutouts on one side close to the cutting wheel (64).

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