Convenient composite pipe drilling and welding all-in-one machine

Abstract

The utility model discloses a portable composite pipe drilling and welding all-in-one machine which comprises a machine frame used for supporting a composite pipe and a door frame erected on the machine frame in a sliding mode through a guide rail, a drilling device and a welding device are sequentially arranged on the door frame, and the welding device comprises an additional pipe clamping and moving unit capable of moving up and down relative to the door frame. A handheld heating mold is further arranged to be matched with the additional connection pipe clamping and moving unit and comprises a supporting plate, an upper mold body and a lower mold body, the upper mold body and the lower mold body are erected on the supporting plate and integrally formed, and the structure of the upper mold body is matched with the lower connecting end of the additional connection pipe so that the lower end face of the additional connection pipe can be heated. The structure of the lower die is matched with the structure of the opening end face of the drill hole in the composite pipe so that the opening end face of the drill hole in the composite pipe can be heated. The punching and welding device is ingenious in structure, low in equipment cost, good in flexibility, capable of flexibly punching and welding according to needs, high in production speed, reliable in sealing effect and high in practicability.

Description

Technical Field

[0001] The utility model belongs to the field of pipe processing, in particular to a convenient composite pipe drilling and welding machine, which is especially suitable for on-site drilling and connecting of mesh steel strip polyethylene composite pipes. Background Art

[0002] For various reasons, branch pipes need to be connected to composite pipe fittings. When connecting branch pipes, additional pipes or additional pipes are often used. At present, when opening holes in composite pipe fittings and connecting additional pipes, holes are usually drilled on the pipe first, and then hot air welding guns and polyethylene welding wires are used to blow weld on the cross section. However, this process has the following technical defects: (1) The polyethylene welding wire is greatly affected by temperature and is prone to oil separation during blow welding, affecting the welding effect; (2) The blow welding method is greatly affected by manual labor, and the quality of the welded finished product is poor, and there are often cracks and falls off. In this case, it is particularly unsuitable for sealing the holes of perforated steel strip polyethylene composite pipes that pass corrosive liquids, because if the sealing quality is poor, the perforated steel strip layer in the composite pipe is easily exposed, which is easily corroded by the medium in the pipe, and the iron ions on the corroded steel strip are easy to contaminate the medium in the pipe, and the medium is also easy to penetrate along the perforated steel strip and cause pipe burst.

[0003] To this end, Chinese patent 202110524785.2 discloses a composite pipe drilling and welding machine and a process for opening and welding using the drilling and welding machine. The drilling and welding are completed automatically, but the following problems are prone to occur in the actual production process: 1. The equipment cost is relatively high; 2. When the punching device is automatic, because the speed is relatively fast, it is easy to have a slight deviation in the pipe angle, and even if the personnel see the deviation, it is difficult to adjust it in time, resulting in a high defective rate of pipe punching and large pipe losses; 3. When the heating mold is fully automatically controlled as part of the welding device, it is easy to be unable to be removed after heating, that is, when the bottom end face of the heating pipe and the end face of the pipe opening are adhered to the end face of the pipe opening after heating, due to the large bonding force, the force of the machine is easily insufficient to separate them, resulting in easy overheating. Not only does the machine need to be shut down for processing, but the problem of defective pipes is also prone to occur. To this end, people hope to find a device for connecting composite pipes with pipes at a lower cost, easier to control drilling and welding, and relatively good production speed. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the purpose of the utility model is to provide a convenient composite pipe drilling and welding machine.

[0005] The utility model is realized through the following technical solutions:

[0006] A convenient composite pipe drilling and welding machine includes a frame 1 for supporting a composite pipe 8 and a gantry 2 slidably mounted on the frame 1 through a guide rail. A drilling device 3 and a welding device 4 are sequentially provided on the gantry 2. The welding device 4 includes a pipe clamping and moving unit 5 that can move up and down relative to the gantry 2. In conjunction with the pipe clamping and moving unit 5, a handheld heating mold 6 is also provided. The handheld heating mold 6 includes a support plate and an integrally formed upper mold 6.1 and lower mold 6.2 mounted on the support plate. The structure of the upper mold 6.1 is adapted to the lower connecting end of the pipe 7 to facilitate heating the lower end face of the pipe 7. The structure of the lower mold 6.2 is adapted to the end face structure of the drilled hole opening on the composite pipe 8 to facilitate heating the end face of the drilled hole opening on the composite pipe 8.

[0007] Preferably, the drilling device 3 includes a drill bit 3.5 that can move up and down relative to the portal frame.

[0008] Preferably, a composite pipe supporting device 9 is provided on the frame 1, and the composite pipe supporting device 9 includes a lower pipe supporting mechanism 9.1 and an upper pipe clamping mechanism 9.2 that cooperate with each other; the lower pipe supporting mechanism 9.1 and the upper pipe clamping mechanism 9.2 are both provided with a plurality of adjusting bearings 9.3 with successively decreasing inner diameters. By adjusting the number of bearings 9.3, tight and fixed support for pipes of different diameters can be achieved. The lower pipe supporting mechanism 9.1 and the upper pipe clamping mechanism 9.2 are fixed by adjusting bolts. More preferably, an adjusting bolt 9.4 is pinned on both sides of the lower pipe support mechanism 9.1, and the upper pipe clamping mechanism 9.2 is provided with two outward-facing slots for the bolt rods of the adjusting bolts 9.4 to pass through. The adjusting bolts are kept flat at ordinary times. When the lower pipe support mechanism 9.1 and the upper pipe clamping mechanism 9.2 need to be fixed together, the adjusting bolts are erected so that their bolt rods are stuck in the outward-facing slots, and then the upper pipe clamping mechanism 9.2 is fixed to the top of the lower pipe support mechanism 9.1 by tightening the nuts on the adjusting bolts.

[0009] Preferably, the lower end of the gantry 2 is further provided with a brake locking device 10 that cooperates with the frame, so as to lock the gantry on the frame after the gantry 2 is moved into place.

[0010] Preferably, a welding internal support device 11 that can be placed in the composite pipe opening is provided in cooperation with the lower mold of the handheld heating mold 6. The welding internal support device 11 includes a base 11.1 and a top plate 11.2 arranged on the top of the base 11.1. The top plate 11.2 and the base 11.1 are connected by a first cylinder 11.3 fixed on the base 11.1. The top plate 11.2 is arranged on the movable end of the first cylinder 11.3. The top plate 11.2 is an arc-shaped structure that is adapted to the inner wall of the composite pipe 8 pipe opening, and a cylindrical positioning column 11.4 is provided at the top center of the top plate 11.2; in cooperation with the positioning column 11.4, an upper cover 11.5 that can be snapped onto the composite pipe pipe opening and can cover the positioning column is provided. The upper cover 11.5 is a cylindrical structure, and the top of the upper cover 11.5 is a conical cavity. After covering the upper cover 11.5, the positioning post 11.4 is matched with the conical inner cavity of the upper cover 11.5, so that the positioning post 11.4 is kept in the center of the composite pipe opening.

[0011] More preferably, support plates 11.6 are symmetrically provided on both sides of the bottom of the base 11.1. The support plates 11.6 are semicircular plates. Rollers 11.7 capable of cooperating with the inner wall of the composite pipe are symmetrically provided on both sides of the support plates 11.6.

[0012] Preferably, the welding device 4 includes a transverse support frame 4.1 fixedly connected to the gantry and an additional tube clamping moving unit 5 arranged on the transverse support frame 4.1, and the additional tube clamping moving unit 5 includes an additional tube clamp 5.1 and a first driving structure 5.2 fixedly arranged on the transverse support frame 4.1 and capable of controlling the upward and downward movement of the additional tube clamp 5.1.

[0013] Preferably, two guide rods 4.2 are provided on both sides of the first driving structure 5.2 and vertically pass through the horizontal support frame 4.1. The upper end of the additional tube clamp 5.1 is connected to the lower ends of the two guide rods. A second driving structure 5.3 is also fixedly provided on the additional tube clamp 5.1 and the opening and closing of the additional tube clamp 5.1 is controlled by the second driving structure 5.3.

[0014] Preferably, the drilling device 3 includes a connecting plate 3.1 fixedly connected to the gantry and a back plate 3.3 driven by a third driving structure 3.2 arranged on the connecting plate and movable up and down along the connecting plate 3.1. A punching mechanism is fixedly provided on the back plate 3.3, and the punching mechanism includes a motor 3.4 fixedly provided on the back plate and a drill bit 3.5 arranged at the lower end of the motor 3.4 and driven to rotate by the motor.

[0015] More preferably, a fourth linear guide rail is vertically provided on the back of the back plate 3.3, and a groove that can cooperate with the fourth linear guide rail on the back plate 3.3 is provided on the connecting plate 3.1.

[0016] More preferably, the second driving structure 5.3 is a cylinder driving device.

[0017] More preferably, the third driving structure 3.2 is a handwheel driving structure.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] The convenient composite pipe drilling and welding machine of the utility model has an ingenious structure, low equipment cost and good flexibility, and can realize flexible drilling and welding on the composite pipe according to needs; by setting the punching device to manually control the drilling, the problem that the pipe angle has a slight deviation and is difficult to adjust in time when the punching device is used for automatic drilling can be avoided, thereby reducing the defective rate of pipe drilling and reducing pipe loss; in addition, when the heating mold is set to a handheld structure, after the bottom end face of the increased pipe and the end face of the pipe opening are heated by the heating mold, when there is adhesion between the end face of the increased pipe or the pipe opening, they can be quickly and flexibly separated manually, avoiding the problem that the heating mold may not be removed when it is fully automatically controlled as part of the welding device, resulting in the need for the machine to stop and the easy occurrence of defective pipes, thereby relatively saving downtime, reducing the defective rate, fast production speed and reliable sealing effect, strong practicality, and worthy of promotion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] For ease of explanation, the present invention is described in detail with reference to the following specific embodiments and accompanying drawings.

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of an embodiment of the utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0023] Figure 3 for Figure 1 A side structural diagram of

[0024] Figure 4 A schematic diagram of the three-dimensional structure of an embodiment of the present invention from another angle;

[0025] Figure 5 for Figure 4 Enlarged view of point B in the middle;

[0026] Figure 6 It is a schematic diagram of the three-dimensional structure of the frame and the composite pipe support device;

[0027] Figure 7 for Figure 6 Enlarged view of point C in the figure;

[0028] Figure 8It is a schematic diagram of the three-dimensional structure of the inner support device;

[0029] Figure 9 This is a schematic diagram of the matching structure of the welded inner support device and the upper cover. DETAILED DESCRIPTION

[0030] like Figure 1-9 As shown, the portable composite pipe drilling and welding machine includes a frame 1 for supporting the composite pipe 8 and a gantry 2 slidably mounted on the frame 1 through a guide rail, and the gantry 2 is sequentially provided with a drilling device 3 and a welding device 4, and the welding device 4 includes an additional pipe clamping and moving unit 5 that can move up and down relative to the gantry 2. In cooperation with the additional pipe clamping and moving unit 5, a handheld heating mold 6 is also provided, and the handheld heating mold 6 includes a support plate and an integrally formed upper mold 6.1 and a lower mold 6.2 mounted on the support plate. The structure of the upper mold 6.1 is adapted to the lower end connecting end of the additional pipe 7 so as to heat the lower end surface of the additional pipe 7, and the structure of the lower mold 6.2 is adapted to the structure of the drilled opening end surface on the composite pipe 8 so as to heat the drilled opening end surface on the composite pipe 8;

[0031] The drilling device 3 includes a drill bit 3.5 that can move up and down relative to the portal frame.

[0032] A composite pipe supporting device 9 is provided on the frame 1, and the composite pipe supporting device 9 includes a lower pipe supporting mechanism 9.1 and an upper pipe clamping mechanism 9.2 that cooperate with each other. The lower pipe supporting mechanism 9.1 and the upper pipe clamping mechanism 9.2 are both provided with a plurality of adjusting bearings 9.3 with successively decreasing inner diameters. By adjusting the number of bearings 9.3, tight and fixed support for pipes of different diameters can be achieved. The lower pipe supporting mechanism 9.1 and the upper pipe clamping mechanism 9.2 are fixed by adjusting bolts. More preferably, an adjusting bolt 9.4 is pinned on both sides of the lower pipe support mechanism 9.1, and the upper pipe clamping mechanism 9.2 is provided with two outward-facing slots for the bolt rods of the adjusting bolts 9.4 to pass through. The adjusting bolts are kept flat at ordinary times. When the lower pipe support mechanism 9.1 and the upper pipe clamping mechanism 9.2 need to be fixed together, the adjusting bolts are erected so that their bolt rods are stuck in the outward-facing slots, and then the upper pipe clamping mechanism 9.2 is fixed to the top of the lower pipe support mechanism 9.1 by tightening the nuts on the adjusting bolts.

[0033] The lower end of the gantry 2 is further provided with a brake locking device 10 that cooperates with the frame, so as to lock the gantry on the frame after the gantry 2 moves into place.

[0034] In cooperation with the lower mold of the handheld heating mold 6, there is a welding internal support device 11 that can be placed in the composite pipe opening. The welding internal support device 11 includes a base 11.1 and a top plate 11.2 arranged on the top of the base 11.1. The top plate 11.2 and the base 11.1 are connected by a first cylinder 11.3 fixed on the base 11.1. The top plate 11.2 is arranged on the movable end of the first cylinder 11.3. The top plate 11.2 is an arc-shaped structure that adapts to the inner wall of the composite pipe 8 pipe opening, and a cylindrical positioning column 11.4 is provided in the center of the top of the top plate 11.2; in cooperation with the positioning column 11.4, there is a top cover 11.5 that can be snapped onto the composite pipe pipe opening and can cover the positioning column. The top cover 11.5 is a cylindrical structure, and the top of the top cover 11.5 is a conical cavity. After covering the upper cover 11.5, the positioning post 11.4 is matched with the conical inner cavity of the upper cover 11.5, so that the positioning post 11.4 is kept in the center of the composite pipe opening.

[0035] Support plates 11.6 are symmetrically arranged on both sides of the bottom of the base 11.1. The support plates 11.6 are semicircular plates. Rollers 11.7 that can cooperate with the inner wall of the composite pipe are symmetrically arranged on both sides of the support plates 11.6.

[0036] The welding device 4 includes a transverse support frame 4.1 fixedly connected to the gantry and an additional tube clamping and moving unit 5 arranged on the transverse support frame 4.1. The additional tube clamping and moving unit 5 includes an additional tube clamp 5.1 and a first driving structure 5.2 fixedly arranged on the transverse support frame 4.1 and capable of controlling the additional tube clamp 5.1 to move up and down.

[0037] Two guide rods 4.2 are provided on both sides of the first driving structure 5.2 and vertically pass through the horizontal support frame 4.1. The upper end of the expansion tube clamp 5.1 is connected to the lower ends of the two guide rods. A second driving structure 5.3 is also fixedly provided on the expansion tube clamp 5.1 and is controlled by the second driving structure 5.3 to open and close the expansion tube clamp 5.1.

[0038] The drilling device 3 includes a connecting plate 3.1 fixedly connected to the gantry and a back plate 3.3 driven by a third driving structure 3.2 arranged on the connecting plate and movable up and down along the connecting plate 3.1. A punching mechanism is fixedly provided on the back plate 3.3. The punching mechanism includes a motor 3.4 fixedly provided on the back plate and a drill bit 3.5 arranged at the lower end of the motor 3.4 and driven to rotate by the motor.

[0039] A fourth linear guide rail is vertically provided on the back of the back plate 3.3, and a groove that can cooperate with the fourth linear guide rail on the back plate 3.3 is provided on the connecting plate 3.1.

[0040] The second driving structure 5.3 is a cylinder driving device.

[0041] The third driving structure 3.2 is a handwheel driving structure.

[0042] The process steps for hole welding using the above-mentioned drilling and welding machine are as follows:

[0043] 1) Use the composite pipe support device to fix the composite pipe pipeline;

[0044] 2) Manually push the gantry to move it to the position where the drilling device is aligned with the pipe where the hole needs to be drilled;

[0045] 3) Drill holes in the pipeline using a drilling device;

[0046] 4) Clamp the additional tube with the fixture on the additional tube clamping moving unit, keep the lower end face of the additional tube perpendicular to the end face of the opening on the pipeline, and align the additional tube with the pipeline opening below;

[0047] 5) Manually place the handheld heating mold on the pipe opening so that its lower mold is attached to the end face of the pipe opening. At the same time, control the expansion pipe fixture to move downward so that the bottom of the expansion pipe is in close contact with the upper mold of the heating mold. Then, the bottom of the expansion pipe and the end face of the pipe opening are heated simultaneously by the heating of the handheld heating mold.

[0048] 6) After the heating time is satisfied, lift the additional tube. After the heating mold is manually removed, the additional tube is quickly pressed down to the end face of the hole through the additional tube clamping moving unit, and the pressure is maintained until the additional tube cools down and the end face of the hole forms a smooth whole.

[0049] 7) Loosen and reset the additional pipe fixture to complete the additional pipe welding.

[0050] 8) After completing the punching and welding at one position, the gantry continues to move the required distance relative to the frame, so that holes can be punched and welded continuously on the pipe as needed.

[0051] Among them, after the hole is opened in step 3), the welding inner support device is pushed into the hole in the pipe from the pipe inlet, and the top plate with the positioning column is lifted by the first cylinder on the welding inner support device, so that the top plate fits the inner surface of the pipe at the pipe opening and the positioning column extends from the opening; then the upper cover that can be snapped onto the pipe opening and can cover the positioning column is covered on the positioning column extending from the opening. After covering the upper cover, the positioning column is matched with the conical inner cavity of the upper cover, so that the positioning column is kept in the center of the opening, that is, a guide is provided for the position of the positioning column; after completing the positioning column guidance, the upper cover is removed to prepare for the handheld heating mold to heat the end face of the opening. At that time, the handheld heating mold is put up and the positioning column is inserted into the lower mold of the handheld heating mold. Under the lining action of the top plate and the positioning column, the connection between the welded pipe and the end face of the opening is smoother. After step 7) is completed, the welding inner support device is taken out.

[0052] The convenient composite pipe drilling and welding machine of the utility model has an ingenious structure, low equipment cost and good flexibility, and can realize flexible drilling and welding on the composite pipe according to needs; by setting the punching device to manually control the drilling, the problem that the pipe angle has a slight deviation and is difficult to adjust in time when the punching device is used for automatic drilling can be avoided, thereby reducing the defective rate of pipe drilling and reducing pipe loss; in addition, when the heating mold is set to a handheld structure, after the bottom end face of the increased pipe and the end face of the pipe opening are heated by the heating mold, when there is adhesion between the end face of the increased pipe or the pipe opening, they can be quickly and flexibly separated manually, avoiding the problem that the heating mold may not be removed when it is fully automatically controlled as part of the welding device, resulting in the need for the machine to stop and the easy occurrence of defective pipes, thereby relatively saving downtime, reducing the defective rate, fast production speed and reliable sealing effect, strong practicality, and worthy of promotion.

[0053] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that do not require creative effort should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection defined in the claims.

Claims

1. Portable composite pipe drilling and welding machine, characterized by: The invention comprises a frame (1) for supporting a composite pipe (8) and a door frame (2) slidably mounted on the frame (1) via a guide rail, wherein a drilling device (3) and a welding device (4) are sequentially mounted on the door frame (2), wherein the welding device (4) comprises a pipe clamping movable unit (5) movable up and down relative to the door frame (2), and a handheld heating mold (6) is also provided in cooperation with the pipe clamping movable unit (5), wherein the handheld heating mold (6) comprises a support plate and an upper mold (6.1) and a lower mold (6.2) integrally formed and mounted on the support plate, wherein the structure of the upper mold (6.1) is adapted to the lower end connection end of the pipe expansion unit (7) so as to heat the lower end surface of the pipe expansion unit (7), and the structure of the lower mold (6.2) is adapted to the structure of the end surface of the drilling opening on the composite pipe (8) so as to heat the end surface of the drilling opening on the composite pipe (8).

2. The portable composite pipe drilling and welding machine according to claim 1, characterized in that: The frame (1) is provided with a composite pipe support device (9), which comprises a lower pipe support mechanism (9.1) and an upper pipe pressing mechanism (9.2) that cooperate with each other in a lower and upper manner; the lower pipe support mechanism (9.1) and the upper pipe pressing mechanism (9.2) are both provided with a plurality of adjusting bearings (9.3) with successively decreasing inner diameters; by adjusting the number of bearings (9.3), tight fixed support for pipes of different diameters can be achieved; the lower pipe support mechanism (9.1) and the upper pipe pressing mechanism (9.2) are fixed by adjusting bolts; an adjusting bolt (9.4) is pinned to each of the two sides of the lower pipe support mechanism (9.1); the upper pipe pressing mechanism (9.2) is provided with two outwardly opening slots for the bolt rods of the adjusting bolts (9.4) to pass through.

3. The portable composite pipe drilling and welding machine according to claim 1, characterized in that: The lower end of the door frame (2) is also provided with a brake locking device (10) that cooperates with the frame.

4. The portable composite pipe drilling and welding machine according to claim 1, characterized in that: A welding inner support device (11) is provided in cooperation with the lower mold of the handheld heating mold (6) and can be placed in the opening of the composite tube. The welding inner support device (11) includes a base (11.1) and a top plate (11.2) arranged on the top of the base (11.1). The top plate (11.2) and the base (11.1) are connected via a first cylinder (11.3) fixed on the base (11.1). The top plate (11.2) is arranged on the first cylinder (11.3). ), the top plate (11.2) is an arc-shaped structure adapted to the inner wall of the composite pipe (8) pipe opening, and a cylindrical positioning column (11.4) is provided at the top center of the top plate (11.2); in conjunction with the positioning column (11.4), an upper cover (11.5) is provided that can be snapped onto the composite pipe pipe opening and can cover the positioning column, the upper cover (11.5) is a cylindrical structure, and the inner top of the upper cover (11.5) is a conical cavity.

5. The portable composite pipe drilling and welding machine according to claim 1, characterized in that: The welding device (4) comprises a transverse support frame (4.1) fixedly connected to the portal frame and an additional tube clamping and moving unit (5) arranged on the transverse support frame (4.1); the additional tube clamping and moving unit (5) comprises an additional tube clamp (5.1) and a first driving structure (5.2) fixedly arranged on the transverse support frame (4.1) and capable of controlling the additional tube clamp (5.1) to move up and down.

6. The portable composite pipe drilling and welding machine according to claim 5, characterized in that: Two guide rods (4.2) are provided on both sides of the first drive structure (5.2) and vertically penetrate the transverse support frame (4.1); the upper end of the expansion tube clamp (5.1) is connected to the lower ends of the two guide rods; a second drive structure (5.3) is also fixedly provided on the expansion tube clamp (5.1), and the second drive structure (5.3) controls the opening and closing of the expansion tube clamp (5.1).

7. The portable composite pipe drilling and welding machine according to claim 1, characterized in that: The drilling device (3) comprises a connecting plate (3.1) fixedly connected to the portal frame and a back plate (3.3) driven by a third driving structure (3.2) arranged on the connecting plate and movable up and down along the connecting plate (3.1); a punching mechanism is fixedly provided on the back plate (3.3); the punching mechanism comprises a motor (3.4) fixedly arranged on the back plate and a drill bit (3.5) arranged at the lower end of the motor (3.4) and driven to rotate by the motor.

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