Mechatronics threading machine for building construction

Abstract

The invention discloses a mechanical-electrical integration threading machine for building construction, which is characterized in that two three-jaw positioning discs for positioning a steel pipe are mounted on a threading machine body, three sliding positioning shafts and positioning blocks are in transmission connection with the three-jaw positioning discs, the positioning blocks are mounted on the sliding positioning shafts in an inserting manner, and through grooves are formed in the positioning blocks; two symmetrically-distributed clamping blocks are rotationally connected into each through groove, the ends, located in the through grooves, of the two clamping blocks are rotationally connected with connecting blocks, the ends, away from the rotating points of the clamping blocks, of the two connecting blocks are jointly rotationally connected with a pushing block, and an abutting block used for being attached to and abutting against a steel pipe is arranged at the bottom end of the pushing block; the abutting block is located between the ends, extending out of the through groove, of the two clamping blocks. And the positioning blocks are pushed by sliding the positioning shafts to continuously move until the two clamping blocks expand to the maximum angle, so that a stable clamping relation is formed among the steel pipe, the clamping blocks and the inner wall of the through groove, the contact area with the surface of the steel pipe is further increased, and the friction force and the clamping effect are enhanced.

Description

Technical Field

[0001] The present application belongs to the technical field of threading machines, and in particular relates to a mechatronic threading machine for construction. Background Art

[0002] The threading machine is mainly responsible for threading one end of the steel pipe during construction, so as to facilitate the connection of the steel pipe with other connectors. In addition to threading, the threading machine on the market is also equipped with a cutting function, which is convenient for cutting the threaded end of the steel pipe. However, whether it is threading or cutting, the steel pipe needs to be stably clamped and positioned to facilitate the rotating equipment to drive the steel pipe to rotate.

[0003] During the clamping process, the threading machine needs to use the three annularly distributed metal positioning blocks in the three-jaw chuck to move centripetally, so as to achieve the effect of clamping and positioning the steel pipe and ensure that the steel pipe can be threaded stably. However, the existing threading machine has a small contact surface between the metal positioning block and the steel pipe, and the abutment point between the two is too single, resulting in poor clamping effect. When the friction between the steel pipe and the razor is greater than the friction between the positioning block of the three-jaw chuck and the steel pipe, clamping failure is likely to occur, causing the metal positioning block to continue to slip on the surface of the steel pipe, which not only damages the surface of the steel pipe, but also causes the problem of failure in threading the steel pipe. Summary of the invention

[0004] The present application proposes a mechatronic threading machine for construction, which has the advantages of increasing the contact area between the positioning block and the surface of the steel pipe and increasing the abutment points used for positioning, thereby achieving the advantages of improving the friction between the steel pipe and the positioning block and the clamping stability. It is used to solve the problem that the contact area between the metal positioning block and the steel pipe in the existing threading machine is small, the abutment points between the two are too single, and the clamping effect is poor. When the friction between the steel pipe and the razor is greater than the friction between the three-jaw chuck positioning block and the steel pipe, clamping failure is likely to occur, causing the metal positioning block to continue to slip on the surface of the steel pipe, which not only damages the surface of the steel pipe, but also causes the steel pipe threading failure.

[0005] To achieve the above-mentioned purpose, the present application adopts the following technical scheme: a mechatronic threading machine for construction construction, comprising a threading machine body, on which are mounted two three-claw positioning disks for positioning steel pipes, the three-claw positioning disks being transmission-connected with three sliding positioning shafts and positioning blocks, the positioning blocks being mounted on the sliding positioning shafts by plugging, and a through slot being provided in the positioning blocks, each of the through slots being rotatably connected with two symmetrically distributed clamping blocks for accurately clamping and positioning the steel pipes, the two clamping blocks being rotatably connected at one end located in the through slots with connecting blocks, the two connecting blocks being rotatably connected at one end away from the rotating point of the clamping blocks with a push block, the bottom end of the push block being provided with an abutment block for fitting and abutting the steel pipe, and the abutment block being located in the middle of one end of the two clamping blocks extending out of the through slots.

[0006] Furthermore, a hollow I-shaped block is clamped on one end of the abutment block opposite to the push block, and a plurality of first springs are fixedly connected between the hollow I-shaped block and the push block.

[0007] Furthermore, a sealed cavity is provided in the push block, the bottom piston of the sealed cavity is connected to a hollow piston block, the bottom end of the hollow piston block is fixedly connected to a hollow I-shaped block, an adsorption cavity is provided in the abutment block, and an adsorption port connected to the sealed cavity is provided at the bottom, and the piston in the sealed cavity is connected to a piston bar.

[0008] Furthermore, a fixing block is fixedly connected to one side of the piston bar close to the connecting block. The fixing block passes through the sealing cavity and is fixedly connected to the inner wall of the through groove.

[0009] Furthermore, an air pressure monitoring sensor for real-time monitoring of air pressure changes is embedded in a side wall of one end of the hollow piston block close to the hollow I-shaped block.

[0010] Furthermore, an anti-slip sleeve is sleeved on the outer side of the clamping block, and the shape of the anti-slip sleeve matches the outer side of the clamping block.

[0011] Furthermore, one end of the two clamping blocks located in the through slot is commonly and fixedly connected to a second spring.

[0012] Furthermore, the positioning block is fixedly connected to one side of the sliding positioning shaft, and the sliding positioning shaft is provided with a card slot that matches the card slot, and the plug-in is completed through the card slot. Beneficial Effects

[0013] The application provides a mechatronic threading machine for construction, which pushes the positioning block to move continuously by sliding the positioning shaft until the two clamping blocks expand to the maximum angle, at which time the outer walls of the two clamping blocks will fit with the inner wall of the through groove, and finally a stable clamping relationship is formed between the steel pipe, the clamping block and the inner wall of the through groove, and the V-shaped clamping angle formed by the two clamping blocks on the surface of the steel pipe can further expand the contact surface and abutment point with the surface of the steel pipe, and the two symmetrical contact surfaces and abutment points undoubtedly further improve the stability of the steel pipe in clamping; When one end of the steel pipe abuts the two clamping blocks, the other end will be relatively close. At this time, the two connecting blocks rotatably connected to the two clamping blocks will be rotatably connected to one end of the push block through the other end, thereby pushing the push block to approach the surface of the steel pipe, and the end of the push block away from the connecting block pushes the abutment block to contact the surface of the steel pipe first through multiple first springs fixedly connected to the hollow I-shaped blocks. This achieves the goal of maintaining a stable clamp on the surface of the steel pipe while adding an additional contact surface, further increasing the contact area with the surface of the steel pipe, enhancing friction and clamping effect, and solving the problem of poor clamping effect on the steel pipe caused by the small contact surface of the three-jaw chuck of the existing threading machine and too single abutment point. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below. Obviously, the drawings in the following description are only embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on the provided drawings without creative work: Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a structural schematic diagram of the three-claw positioning plate in the present invention; Figure 3 It is a structural schematic diagram of the positioning block in the present invention; Figure 4 It is a schematic diagram of the structure of the clamping block in the present invention; Figure 5 It is a front cross-sectional structural schematic diagram of the clamping block in the present invention; Figure 6 It is a schematic diagram of the side cross-sectional structure of the clamping block in the present invention; Figure 7 It is a schematic diagram of the structure of the push block and the hollow I-shaped block in the present invention.

[0015] In the figure: 1. threading machine body; 2. three-claw positioning plate; 3. sliding positioning shaft; 4. positioning block; 401. magnetic plug block; 5. clamping block; 501. anti-slip sleeve; 6. abutment block; 7. connecting block; 8. push block; 801. first spring; 9. hollow piston block; 10. hollow I-shaped block; 11. fixing block; 12. piston bar; 13. air pressure monitoring sensor; 14. adsorption chamber; 15. second spring; 16. sealing chamber; 17. through groove. DETAILED DESCRIPTION

[0016] 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. Embodiment 1

[0017] Please refer to Figure 1-Figure 4 As shown, it can be seen that the threading machine body 1 is the main body, and the two three-claw positioning disks 2 installed on the threading machine body 1 can stably clamp the two ends of the steel pipe. The three-claw positioning disk 2 controls the corresponding three sliding positioning shafts 3 to move centripetally, thereby driving the positioning block 4 installed at one end to abut against the surface of the steel pipe. The through groove 17 opened in the positioning block 4 can facilitate the two clamping blocks 5 rotatably connected to it to expand and contract within a certain range, thereby achieving the corresponding clamping of the arc surface of the steel pipe. The sliding positioning shaft 3 pushes the positioning block 4 to continue to move until the two clamping blocks 5 expand to the maximum angle. At this time, the outer walls of the two clamping blocks 5 will fit with the inner wall of the through groove 17, and finally a stable clamping relationship is formed between the steel pipe, the clamping block 5 and the inner wall of the through groove 17. The V-shaped clamping angle formed by the two clamping blocks 5 on the steel pipe surface can further expand the contact surface and abutment point with the steel pipe surface. The two symmetrical contact surfaces and abutment points undoubtedly further enhance the stability of the steel pipe in clamping.

[0018] The two clamping blocks 5 are both sleeved with anti-slip sleeves 501 that are adapted to their shapes. The two anti-slip sleeves 501 are both made of rubber materials with strong wear-resistant and bending-resistant properties, which can protect the surface of the steel pipe to the greatest extent and prevent the clamping block 5 with higher hardness from damaging the surface of the steel pipe during clamping. At the same time, the friction between the clamping block 5 and the surface of the steel pipe is improved. On this basis, an inward groove is provided in the clamping block 5, and a protrusion extending into the groove is provided on the anti-slip sleeve 501. The two are bonded by using glue with higher viscosity. With the clamping of the protrusion and the groove, the stability of the anti-slip sleeve 501 sleeved on the clamping block 5 can be improved, thereby preventing the anti-slip sleeve 501 from falling off during clamping or slipping, and the clamping center from shifting, causing the steel pipe to be unable to be concentric. Embodiment 2

[0019] Further supplements are made based on Example 1, please refer to Figure 4-Figure 5As shown, it can be seen that during the relative expansion process of one end of the two clamping blocks 5 abutting the steel pipe, the other end will gradually approach relatively. At this time, the two connecting blocks 7 rotatably connected to the two clamping blocks 5 will be rotatably connected to one end of the push block 8 through the other end, thereby pushing the push block 8 to approach the surface of the steel pipe, wherein the end of the push block 8 away from the connecting block 7 is fixedly connected to a plurality of first springs 801 by the hollow I-shaped block 10, and the bottom of the hollow I-shaped block 10 is connected with the abutment block 6. At this time, during the movement of the push block 8, the abutment block 6 will preferentially contact the surface of the steel pipe, and during the continuous movement of the push block 8, the first spring 801 will be gradually compressed. At this time, the elasticity generated by the first spring 801 will make the abutment block 6 further close to the surface of the steel pipe. On the one hand, while the two clamping blocks 5 maintain a stable clamping with the surface of the steel pipe, an additional contact surface can be added, thereby further increasing the contact area with the surface of the steel pipe and enhancing the friction and clamping effect. On the other hand, within a certain range, its elastic abutment effect can meet the adaptive clamping of steel pipes of different diameters.

[0020] The bottom shape of the abutment block 6 is set to be arc-shaped, and the material is made of a rubber material with high wear resistance and elasticity, such as natural rubber and styrene-butadiene rubber, etc., which can achieve a better fit to the arc surface of the steel pipe and a more anti-slip and wear-resistant effect. At the same time, the small-volume angular edges extending downward at both ends of the abutment block 6 can better insert into the gap between the two when slipping with the steel pipe, achieving a stuck state and avoiding the problem of the anti-slip sleeve 501 continuing to slip on the surface of the steel pipe.

[0021] The two ends of the second spring 15 are respectively fixedly connected to one end of the two clamping blocks 5 located in the through groove 17. On the one hand, the relative stability of the two clamping blocks 5 in the through groove 17 can be improved. On the other hand, when the two clamping blocks 5 are expanded and pulled apart, the second spring 15 will be compressed, so that the elasticity of the second spring 15 itself will push the ends of the two clamping blocks 5 in contact with the steel pipe to shrink inward, thereby strengthening the clamping effect with the surface of the steel pipe and further improving the stability of the steel pipe when clamping.

[0022] A magnetic plug-in block 401 is fixedly connected to the top of the positioning block 4, and a slot matched with the magnetic plug-in block 401 is opened on the side of the sliding positioning shaft 3 relative to the positioning block 4, and the magnetic plug-in block 401 is snapped into the slot. The magnetic plug-in block 401 is made of magnetic material. The magnetic plug-in block 401 made of magnetic material is snapped into the slot on the sliding positioning shaft 3, which can achieve the effect of quickly disassembling and replacing the positioning block 4, greatly facilitating technicians when replacing and repairing the clamping components, saving maintenance and repair time, and improving the working efficiency of the threading machine. Embodiment 3

[0023] On the basis of the first and second embodiments, further improvements are made, such as Figure 4-Figure 7As described above, a sealed cavity 16 is provided in the push block 8, and a piston strip 12 is slidably connected in the sealed cavity 16. The fixed block 11 fixedly connected to the piston strip 12 penetrates the sealed cavity 16 and is fixedly connected to the inner wall of the through groove 17 of the positioning block 4. Since the fixed block 11 is in a fixed state, when the push block 8 moves toward the steel pipe, at this time, the piston strip 12 fixedly connected to the fixed block 11 will gradually approach the inner wall of the push block 8 away from the end of the steel pipe, thereby producing an effect similar to that of a needle tube pumping. The other end of the hollow piston block 9 connected to the piston of the push block 8 is fixedly connected to It is connected to the hollow I-shaped block 10, wherein the bottom of the abutment block 6 fits tightly against the surface of the steel pipe, and because of the piston connection of the hollow piston block 9, the hollow piston block 9, the sealing chamber 16 and the cavity inside the adsorption chamber 14 form a sealed environment. Under the pumping action of the piston bar 12 and the push block 8, the air pressure in the sealing chamber 16 and the adsorption chamber 14 will gradually decrease and form a negative pressure, thereby forming a more stable and tight sealing connection relationship between the bottom of the abutment block 6 and the surface of the steel pipe, thereby further improving the stability of the abutment between the abutment block 6 and the surface of the steel pipe.

[0024] It is worth noting that when the inner wall of the clamping block 5 is too smooth due to long-term use or lack of regular anti-skid maintenance, the friction of the inner wall of the clamping block 5 is reduced, and the clamping block 5 and the steel pipe surface are prone to slipping, eventually resulting in clamping failure and the steel pipe cannot be threaded normally. At this time, please refer to Figure 5-Figure 7 As shown, it can be seen that when the abutment block 6 and the hollow I-shaped block 10 are installed, a certain space is still reserved between the top of the abutment block 6 and the inner groove wall of the hollow I-shaped block 10. This space can achieve that when the steel pipe surface and the clamping block 5 slip, the abutment block 6 that still maintains a close fit and adsorption with the steel pipe surface will drive the abutment block 6 to move when the steel pipe and the clamping block 5 are intertwined, so that the angular edge is stuck in the gap between the two, thereby increasing the friction between the steel pipe and the clamping block 5. As the abutment block 6 is gradually pulled into the gap between the two, the friction between the relative surfaces of the two will become greater, and eventually a jam will be formed, so that the steel pipe and the two clamping blocks 5 can maintain a relatively stable clamping connection again. As a remedial measure after clamping failure, the wear on the steel pipe surface can be effectively reduced when the clamping block 5 and the steel pipe slip. At the same time, the re-stuck steel pipe can continue to be threaded, or the threading can be terminated in time, thereby avoiding further damage or safety accidents caused by slipping.

[0025] The air pressure monitoring sensor 13 is embedded in the hollow piston block 9. After the sealed environment is formed, it can continuously monitor the air pressure in the sealed environment. When the adsorption chamber 14 is stuck in the gap between the anti-slip sleeve 501 and the steel pipe, it is subjected to traction, and the elastic abutment block 6 will be deformed. At this time, the adsorption port at the bottom of the abutment block 6 will be separated from the surface of the steel pipe, so that the air in the adsorption chamber 14 is connected to the outside world, resulting in the failure of the negative pressure. At this time, the sudden air pressure change will be captured by the air pressure monitoring sensor 13 and transmitted to the external controller and alarm in real time, thereby triggering the alarm effect and promptly reminding the technicians to come for maintenance.

Claims

1. A mechatronic threading machine for construction, characterized in that: include: A threading machine body (1), wherein two three-claw positioning plates (2) for positioning the steel pipe are installed on the threading machine body (1), and three sliding positioning shafts (3) are transmission-connected to the three-claw positioning plates (2); A positioning block (4), the positioning block (4) being installed on the sliding positioning shaft (3) by plugging, and a through slot (17) being provided in the positioning block (4), and two symmetrically distributed clamping blocks (5) being rotatably connected in each of the through slots (17) for clamping and positioning the steel pipe; One end of the two clamping blocks (5) located in the through slot (17) is rotatably connected to a connecting block (7), and one end of the two connecting blocks (7) away from the rotation point of the clamping blocks (5) is rotatably connected to a pushing block (8) together, and a contact block (6) for abutting against a steel pipe is provided at the bottom end of the pushing block (8), and the contact block (6) is located in the middle of one end of the two clamping blocks (5) extending outside the through slot (17).

2. The mechatronic threading machine for construction according to claim 1, characterized in that: A hollow I-shaped block (10) is clamped on one end of the abutment block (6) opposite to the push block (8), and a plurality of first springs (801) are fixedly connected between the hollow I-shaped block (10) and the push block (8).

3. A mechatronic threading machine for construction according to claim 2, characterized in that: The push block (8) is provided with a sealed cavity (16), the bottom piston of the sealed cavity (16) is connected to a hollow piston block (9), the bottom end of the hollow piston block (9) is fixedly connected to a hollow I-shaped block (10), the abutment block (6) is provided with an adsorption cavity (14), and the bottom of the abutment block (6) is provided with an adsorption port connected to the sealed cavity (16), and the piston in the sealed cavity (16) is connected to a piston bar (12).

4. The mechatronic threading machine for construction according to claim 3, characterized in that: A fixing block (11) is fixedly connected to one side of the piston bar (12) close to the connecting block (7); the fixing block (11) passes through the sealing cavity (16) and is fixedly connected to the inner wall of the through groove (17).

5. The mechatronic threading machine for construction according to claim 3, characterized in that: An air pressure monitoring sensor (13) for real-time monitoring of air pressure changes is embedded in a side wall of one end of the hollow piston block (9) close to the hollow I-shaped block (10).

6. The mechatronic threading machine for construction according to claim 1, characterized in that: The outer side of the clamping block (5) is sleeved with an anti-slip sleeve (501), and the shape of the anti-slip sleeve (501) matches the outer side of the clamping block (5).

7. The mechatronic threading machine for construction according to claim 1, characterized in that: One end of the two clamping blocks (5) located in the through slot (17) is commonly and fixedly connected to a second spring (15).

8. The mechatronic threading machine for construction according to claim 1, characterized in that: A magnetic plug-in block (401) is fixedly connected to one side of the positioning block (4) relative to the sliding positioning shaft (3); a slot that matches the magnetic plug-in block (401) is provided on the sliding positioning shaft (3), and the magnetic plug-in block (401) is plugged in through the slot.

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