A building metal material processing device

Abstract

The application relates to the technical field of metal material processing, and discloses a building metal material processing device, which comprises a base, a support fixedly connected to the rear side of the upper end of the base, a pair of limiting guide rods fixedly connected to the left and right ends of the front side of the top of the support in a symmetrical mode, the lower end of each limiting guide rod being fixedly connected to the upper end of the base, a lifting sliding seat slidingly connected between the side walls of the pair of limiting guide rods, abutting sleeves fixedly connected to the left and right sides of the lower end of the lifting sliding seat in a symmetrical mode, the abutting sleeves being slidingly sleeved on the outer walls of the corresponding limiting guide rods, a hydraulic cylinder fixedly connected to the top end of the support, and the telescopic end of the hydraulic cylinder being fixedly connected to the upper end of the lifting sliding seat; the device further comprises a supporting arm, a drilling and tapping combined mechanism, a transposition mechanism, a limiting mechanism, a fixing mechanism and a triggering mechanism. The drilling and tapping combined mechanism and the transposition mechanism are integrated, drilling is completed in the first downward stroke, tapping is completed in the second downward stroke, the circular pipe does not need to be re-clamped or moved in the whole process, and the secondary positioning error is eliminated.

Description

Technical Field

[0001] This invention relates to the field of metal material processing technology, and in particular to a metal material processing device for construction. Background Technology

[0002] In modern steel structure systems, circular tubular metal components are widely used in various node connections due to their excellent mechanical properties and structural efficiency. To achieve efficient assembly between components, drilling and tapping are usually required at the circular tubular nodes to enable reliable connections using high-strength bolts.

[0003] Traditional processing methods mainly include two types: First, the round tube is manually fixed and then drilled with an electric drill, followed by manual tapping with a different tool; Second, with the help of machine tools, the round tube is clamped and positioned, and after drilling, the workpiece is transferred to the tapping station for thread processing.

[0004] However, the above method has significant technical drawbacks in practical applications. Because drilling and tapping are performed in separate steps, and the workpiece needs to be clamped or moved multiple times, it is difficult to maintain consistent positioning datums during processing, easily leading to coaxiality deviations between the hole and the thread. This error not only affects the fitting accuracy of the bolt and threaded hole, causing loosening of the connection, but may also significantly reduce the load-bearing capacity and structural safety of the joint, thereby affecting the stability and service life of the overall steel structure. Summary of the Invention

[0005] In order to overcome the above-mentioned defects of the prior art, the present invention provides a metal material processing device for construction, so as to solve the problems mentioned in the background art.

[0006] This invention provides a metal material processing device for construction, comprising a base, a bracket fixedly connected to the rear side of the upper end of the base, an clearance groove and a guide groove formed on the front end face of the bracket, limit guide rods symmetrically fixedly connected to the left and right ends of the front top of the bracket, the lower ends of the limit guide rods fixedly connected to the upper end of the base, a lifting slide block slidably connected between the side walls of a pair of limit guide rods, abutment sleeves symmetrically fixedly connected to the left and right sides of the lower end of the lifting slide block, the abutment sleeves respectively slidably sleeved on the outer walls of the corresponding limit guide rods, a hydraulic cylinder fixedly connected to the top end of the bracket, the telescopic end of the hydraulic cylinder fixedly connected to the upper end of the lifting slide block; and further comprising:

[0007] A support arm is installed at the front end of the lifting slide, and an installation cavity is provided inside the support arm;

[0008] A drilling and tapping composite mechanism is installed inside the mounting cavity and is used for drilling and tapping of round tubes.

[0009] A switching mechanism is installed at the rear end of the lifting slide and is used to drive the drilling and tapping composite mechanism to switch between different work positions. The switching mechanism includes a connecting shaft rotatably connected inside the lifting slide, a rack fixedly connected to the bracket, and an external gear ring, pawl, and ratchet groove that are linked to the connecting shaft.

[0010] A limiting mechanism is installed on the rear side of the shifting mechanism. The limiting mechanism is used to prevent the drilling and tapping composite mechanism from shifting at an angle during the processing. The limiting mechanism includes a limiting slider that rotates with the connecting shaft, and the limiting slider cooperates with the limiting groove.

[0011] A fixing mechanism is installed on the upper end of the base and is used to clamp and fix the round tube.

[0012] A triggering mechanism is installed between the limiting guide rods.

[0013] Preferably, the drilling and tapping composite mechanism includes a motor, which is fixedly connected to the rear side inside the mounting cavity. A first bevel gear is fixedly connected to the output shaft of the motor. A second bevel gear and a third bevel gear mesh with the sidewall of the first bevel gear. The second bevel gear is located below the third bevel gear. A first rotating shaft is fixedly connected to the lower end of the second bevel gear. The lower end of the first rotating shaft rotates through to the lower end of the support arm. A speed reduction assembly is provided inside the mounting cavity. The input end of the speed reduction assembly is fixedly connected to the third bevel gear. A chuck is fixedly connected to the output end of the speed reduction assembly and the lower end of the first rotating shaft, respectively. A drilling cutter is fixedly connected inside the chuck located at the lower end of the support arm. A tapping cutter is fixedly connected inside the chuck located at the upper end of the support arm. The axes of the drilling cutter and the tapping cutter coincide.

[0014] Preferably, the reduction assembly includes a gearbox, which is fixedly connected to the top of the mounting cavity and located in front of the motor. A second shaft is rotatably connected to the front of the lower end of the gearbox. The lower end of the second shaft is fixedly connected to the upper end of a third bevel gear. The upper end of the second shaft rotatably penetrates into the gearbox and is fixedly connected to a first gear. A third shaft is rotatably connected to the rear of the gearbox. A second gear and a third gear are fixedly connected to the side wall of the third shaft. The second gear is located below the third gear. The first gear and the second gear mesh with each other. A fourth gear meshes with the side wall of the third gear. A fourth shaft is fixedly connected to the upper end of the fourth gear. The upper end of the fourth shaft rotatably penetrates the gearbox and the support arm respectively. The upper end of the fourth shaft is fixedly connected to the lower end of the chuck at the upper end of the support arm.

[0015] The first gear and the third gear have the same model number, the second gear and the fourth gear have the same model number, and the gear ratio of the second gear to the first gear is 2:1.

[0016] Preferably, the front end of the connecting shaft is fixedly connected to the rear end of the support arm, a disc is fixedly connected to the rear end of the connecting shaft, and abutments are symmetrically fixedly connected to the rear end of the disc. A first spring is fixedly connected to the side wall of the abutment, and a pawl is fixedly connected to the end of the first spring. The pawl is hinged to the rear end of the disc by a pin. A fixing ring is fixedly connected to the rear end of the lifting slide, and the fixing ring is coaxial with the connecting shaft. An external gear ring is rotatably connected to the outer wall of the fixing ring. A ratchet groove is opened on the inner wall of the external gear ring located on the rear side of the fixing ring. The end of the pawl is engaged in the ratchet groove. A rack is engaged on the right side wall of the external gear ring, and a fixing block is fixedly connected to the right end of the rack. The end of the fixing block is fixedly connected to the front end of the bracket.

[0017] Preferably, the limiting mechanism further includes a pair of fixed rods, which are symmetrically fixedly connected to the left and right sides of the rear end of the disc. A crossbar is fixedly connected between the rear ends of the pair of fixed rods, and a limiting slider is fixedly connected to the end of the crossbar. A pair of guide grooves are provided, which are located below and connected to the clearance groove. A limiting groove is opened at the bottom of each pair of guide grooves, and the limiting sliders are located on the left and right sides inside the clearance groove, respectively.

[0018] Preferably, the fixing mechanism includes a pair of support columns, which are symmetrically fixedly connected to the left and right sides of the upper end of the base. A placement seat is fixedly connected between the upper ends of the pair of support columns. A pair of rotating shafts are rotatably connected to the lower end of the placement seat through a bearing seat. Gear columns are fixedly connected to the side walls of the pair of rotating shafts respectively. The pair of gear columns mesh with each other. Support rods are fixedly connected to the left and right side walls of the pair of rotating shafts. A stop rod is fixedly connected between the ends of the left and right support rods.

[0019] Preferably, the triggering mechanism includes a pressure plate, which is slidably connected to the side wall between the two limiting guide rods. The pressure plate has a first inclined surface at both ends. Reset springs are symmetrically fixedly connected to the left and right sides of the lower end of the pressure plate, and the lower end of the reset springs is fixedly connected to the upper end of the base. The triggering mechanism also includes a transmission component, a limiting locking component, and an unlocking component.

[0020] Preferably, the transmission assembly includes a pair of limiting rods, which are fixedly connected to the left and right sides of the lower end of the pressure plate. A movable plate is slidably connected between the side walls of the pair of limiting rods. A third spring is fixedly connected to the left and right sides of the upper end of the movable plate. The upper end of the third spring is fixedly connected to the lower end of the pressure plate. A connecting rod is hinged to the left and right sides of the front end of the movable plate. The connecting rod is inclined downward from back to front. A connecting rod is hinged to the end of each pair of connecting rods. The connecting rod is inclined upward from back to front. The end of the connecting rod is fixedly connected to the side wall of the front rotating shaft.

[0021] Preferably, the limiting and locking assembly includes a pair of support frames, which are respectively fixedly connected to the left and right sides of the upper end of the base. The opposite end face of the support frame is provided with a mounting hole, and a locking block is slidably connected inside the mounting hole. The opposite end of the pair of locking blocks is provided with a second inclined surface, and the opposite end of the pair of locking blocks is fixedly connected with a second spring. The end of the second spring away from the locking block is fixedly connected to the inner wall of the mounting hole. The pair of locking blocks are located on the left and right sides below the pressure plate and cooperate with each other.

[0022] Preferably, the unlocking component includes a pair of sleeves, which are slidably connected to the sidewalls of corresponding limiting guide rods, and the lower ends of the pair of sleeves are fixedly connected to the upper end of the pressure plate. An unlocking plate is slidably connected to the sidewall of the sleeve, and a third inclined surface is provided at the opposite end of the unlocking plate.

[0023] Compared with the prior art, the beneficial effects of the present invention are:

[0024] 1. This invention integrates a drilling and tapping composite mechanism with a positioning mechanism. Drilling is completed on the first downward movement, and tapping is completed on the second downward movement. The entire process does not require re-clamping or moving of the round tube, thus eliminating secondary positioning errors.

[0025] 2. This invention uses hydraulic pressure as a power source, and the external gear ring moves and rotates on the rack, which in turn drives the connecting shaft to rotate through the pawl. The rotation of the connecting shaft drives the support arm to rotate, and with the help of the limiting mechanism, the support arm can be precisely rotated 180°. The drilling head and tapping head can be switched without the need for additional motors or pneumatic components. The structure is compact and the energy consumption is low.

[0026] 3. This invention automatically triggers the stop rod to clamp the tube when the lifting slide slide moves downward, completing the self-centering clamping of the round tube. After tapping is completed, the unlocking component is triggered at the end of the second downward stroke, and the pressure plate automatically releases the round tube during the upward return stroke, completing the automated operation of "fixing, processing and unfixing" of the round tube, which significantly reduces the intensity of manual labor. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall main structure of the present invention;

[0028] Figure 2 This is a schematic diagram of the right-side cross-sectional structure of the support arm of the present invention;

[0029] Figure 3 This is a schematic diagram of the right-side cross-sectional structure of the gearbox of the present invention;

[0030] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the bracket of the present invention from the left view;

[0031] Figure 5 This is a schematic diagram of the main structure of the bracket of the present invention;

[0032] Figure 6 This is a schematic diagram of the rear view of the triggering mechanism of the present invention;

[0033] Figure 7 This is a schematic diagram of the main structure of the triggering mechanism of the present invention;

[0034] Figure 8 For the present invention Figure 7 Enlarged structural diagram of section A;

[0035] Figure 9 This is a schematic diagram of the exploded structure of the unlocking component of the present invention;

[0036] Figure 10 This is a schematic diagram of the right-side view of the fixing mechanism of the present invention.

[0037] Numbering on the map:

[0038] 1. Base;

[0039] 2. Bracket; 201. Clearance groove; 202. Guide groove; 203. Limiting groove; 21. Limiting guide rod; 22. Hydraulic cylinder; 23. Lifting slide; 231. Fixing ring; 232. Abutment sleeve;

[0040] 3. Support arm; 31. Mounting cavity;

[0041] 4. Drilling and tapping combined mechanism; 41. Motor; 42. First bevel gear; 43. First rotating shaft; 44. Second bevel gear; 45. Reduction assembly; 451. Gearbox; 452. Second rotating shaft; 453. Third rotating shaft; 454. Fourth rotating shaft; 455. First gear; 456. Second gear; 457. Third gear; 458. Fourth gear; 46. Third bevel gear; 47. Chuck; 48. Drilling cutter head; 49. Tapping cutter head;

[0042] 5. Shifting mechanism; 51. Connecting shaft; 52. Disc; 53. Abutment block; 54. First spring; 55. Pawl; 56. External gear ring; 561. Ratchet groove; 57. Fixing block; 58. Rack;

[0043] 6. Limiting mechanism; 61. Fixed rod; 62. Crossbar; 63. Limiting slider;

[0044] 7. Fixing mechanism; 71. Support column; 72. Placement seat; 73. Rotating shaft; 74. Support rod; 75. Push rod; 76. Gear column;

[0045] 8. Triggering mechanism; 81. Pressure plate; 82. Unlocking assembly; 821. Sleeve; 822. Unlocking plate; 83. Reset spring; 84. Limit locking assembly; 841. Support frame; 842. Mounting hole; 843. Locking block; 844. Second spring; 85. Transmission assembly; 851. Limiting rod; 852. Moving plate; 853. Third spring; 854. Connecting rod; 855. Connecting rod. Detailed Implementation

[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0047] like Figure 1-10 As shown, the present invention has the following three specific embodiments.

[0048] Example 1

[0049] A metal material processing device for construction includes a base 1, a bracket 2 fixedly connected to the rear side of the upper end of the base 1, an avoidance groove 201 and a guide groove 202 formed on the front face of the bracket 2, limit guide rods 21 symmetrically fixedly connected to the left and right ends of the front top of the bracket 2, the lower ends of the limit guide rods 21 fixedly connected to the upper end of the base 1, a lifting slide 23 slidably connected between the side walls of a pair of limit guide rods 21, abutment sleeves 232 symmetrically fixedly connected to the left and right sides of the lower end of the lifting slide 23, the abutment sleeves 232 respectively slidably sleeved on the outer walls of the corresponding limit guide rods 21, a hydraulic cylinder 22 fixedly connected to the top end of the bracket 2, the telescopic end of the hydraulic cylinder 22 fixedly connected to the upper end of the lifting slide 23; and further includes:

[0050] Support arm 3 is installed at the front end of lifting slide 23, and an installation cavity 31 is provided inside the support arm 3;

[0051] The drilling and tapping composite mechanism 4 is installed inside the mounting cavity 31 and is used for drilling and tapping of round tubes.

[0052] The shifting mechanism 5 is installed at the rear end of the lifting slide 23. The shifting mechanism 5 is used to drive the drilling and tapping composite mechanism 4 to switch between different work positions. The shifting mechanism 5 includes a connecting shaft 51 rotatably connected inside the lifting slide 23, a rack 58 fixedly connected to the bracket 2, and an outer gear ring 56, a pawl 55, and a ratchet groove 561 that are linked to the connecting shaft 51.

[0053] The limiting mechanism 6 is installed on the rear side of the shifting mechanism 5. The limiting mechanism 6 is used to prevent the drilling and tapping composite mechanism 4 from shifting at an angle during the processing. The limiting mechanism 6 includes a limiting slider 63 that rotates with the connecting shaft 51, and the limiting slider 63 cooperates with the limiting groove 203.

[0054] Fixing mechanism 7 is installed on the upper end of base 1 and is used to clamp and fix the round tube;

[0055] Triggering mechanism 8 is installed between the limit guide rods 21.

[0056] In this embodiment, as Figures 1-2 As shown, the bracket 2 above the base 1 and the two limiting guide rods 21 form a fixed frame. The lifting slide 23 moves vertically up and down along the limiting guide rods 21 under the push and pull of the hydraulic cylinder 22. The support arm 3 moves synchronously with the lifting slide 23. The drilling and tapping composite mechanism 4 in its mounting cavity 31 first drills holes in the side wall of the round tube when it descends. Then, the shifting mechanism 5 drives the support arm 3 to rotate around the horizontal axis, so that the tapping part is rotated to the working position. The second descent completes the thread forming. The entire rotation process is rigidly positioned by the limiting mechanism 6 to ensure that the two processing are coaxial. The fixing mechanism 7 is triggered by the mechanism 8 in the initial stage of the first descent of the lifting slide 23 and automatically clamps and centers the round tube. After the processing is completed, the lifting slide 23 rises, and the triggering mechanism 8 acts again to release the fixing mechanism 7, and the finished tube can be taken out immediately. The device relies on the same hydraulic power to complete all actions of lifting, shifting, clamping and releasing, without the need for an additional power source.

[0057] Example 2

[0058] The difference from Embodiment 1 is that this embodiment discloses the specific structure of the drilling and tapping composite mechanism 4, the shifting mechanism 5, and the limiting mechanism 6;

[0059] The drilling and tapping composite mechanism 4 includes a motor 41, which is fixedly connected to the rear side inside the mounting cavity 31. A first bevel gear 42 is fixedly connected to the output shaft end of the motor 41. A second bevel gear 44 and a third bevel gear 46 mesh with the side wall of the first bevel gear 42. The second bevel gear 44 is located below the third bevel gear 46. A first rotating shaft 43 is fixedly connected to the lower end of the second bevel gear 44. The lower end of the first rotating shaft 43 rotates through to the lower end of the support arm 3. A reduction assembly 45 is provided inside the mounting cavity 31. The input end of the reduction assembly 45 is fixedly connected to the third bevel gear 46. A chuck 47 is fixedly connected to the output end of the reduction assembly 45 and the lower end of the first rotating shaft 43. A drilling head 48 is fixedly connected inside the chuck 47 located at the lower end of the support arm 3. A tapping head 49 is fixedly connected inside the chuck 47 located at the upper end of the support arm 3. The axes of the drilling head 48 and the tapping head 49 coincide.

[0060] The reduction assembly 45 includes a gearbox 451, which is fixedly connected to the top of the mounting cavity 31 and located in front of the motor 41. A second rotating shaft 452 is rotatably connected to the lower front side of the gearbox 451. The lower end of the second rotating shaft 452 is fixedly connected to the upper end of the third bevel gear 46. The upper end of the second rotating shaft 452 rotatably extends into the gearbox 451 and is fixedly connected to a first gear 455. A third rotating shaft 453 is rotatably connected to the rear side of the gearbox 451. A second gear 456 and a third gear 457 are fixedly connected to the side wall of 53. The second gear 456 is located below the third gear 457. The first gear 455 meshes with the second gear 456. A fourth gear 458 meshes with the side wall of the third gear 457. A fourth rotating shaft 454 is fixedly connected to the upper end of the fourth gear 458. The upper end of the fourth rotating shaft 454 rotates through the gearbox 451 and the support arm 3 respectively. The upper end of the fourth rotating shaft 454 is fixedly connected to the lower end of the chuck 47 at the upper end of the support arm 3.

[0061] The first gear 455 and the third gear 457 are of the same model, the second gear 456 and the fourth gear 458 are of the same model, and the gear ratio of the second gear 456 to the first gear 455 is 2:1.

[0062] The front end of the connecting shaft 51 is fixedly connected to the rear end of the support arm 3. The rear end of the connecting shaft 51 is fixedly connected to a disc 52. The rear end of the disc 52 is symmetrically fixedly connected to a stop block 53. The side wall of the stop block 53 is fixedly connected to a first spring 54. The end of the first spring 54 is fixedly connected to a pawl 55. The pawl 55 is hinged to the rear end of the disc 52 by a shaft pin. The rear end of the lifting slide 23 is fixedly connected to a fixing ring 231. The fixing ring 231 is coaxial with the connecting shaft 51. The outer wall of the fixing ring 231 is rotatably connected to an external gear ring 56. The inner wall of the external gear ring 56 located behind the fixing ring 231 is provided with a ratchet groove 561. The end of the pawl 55 is engaged in the ratchet groove 561. The right side wall of the external gear ring 56 is engaged with a rack 58. The right end of the rack 58 is fixedly connected to a fixing block 57. The end of the fixing block 57 is fixedly connected to the front end of the bracket 2.

[0063] The limiting mechanism 6 also includes a pair of fixed rods 61, which are symmetrically fixedly connected to the left and right sides of the rear end of the disc 52. A crossbar 62 is fixedly connected between the rear ends of the pair of fixed rods 61, and a limiting slider 63 is fixedly connected to the end of the crossbar 62. A pair of guide grooves 202 are provided, which are located below and connected to the clearance groove 201. A limiting groove 203 is opened at the bottom of each pair of guide grooves 202, and the limiting sliders 63 are located on the left and right sides inside the clearance groove 201, respectively.

[0064] In this embodiment, as Figures 2-5As shown, after the motor 41 is energized, its output shaft drives the first bevel gear 42 to rotate. The first bevel gear 42 simultaneously drives the second bevel gear 44 and the third bevel gear 46 to rotate in opposite directions. The second bevel gear 44 transmits the motion directly to the chuck 47 below through the first rotating shaft 43, so that the drilling head 48 completes the hole machining when it descends with the lifting slide 23 for the first time. After the speed of the third bevel gear 46 is reduced by the reduction assembly 45, it drives the chuck 47 above through the fourth rotating shaft 454, so that the tapping head 49 obtains a lower speed and a greater torque. After the support arm 3 is rotated 180°, the lifting slide... 23 The second downward movement completes the thread machining; the speed reduction assembly 45 achieves a decrease in speed through the cooperation of the first gear 455, the second gear 456, the third gear 457 and the fourth gear 458, ensuring a smooth tapping process and regular thread formation; it should be noted that during the downward movement of the lifting slide 23, it will drive the outer gear ring 56 to move downward, and drive the outer gear ring 56 to rotate through the meshing of the rack 58, but the ratchet groove 561 on the inner wall of the outer gear ring 56 is in a slipped state with the pawl 55, so the outer gear ring 56 only rotates without transmitting torque, and thus will not drive the disc 52 to rotate.

[0065] Between the hole and thread machining processes, the shifting mechanism 5 begins operation: when the lifting slide 23 moves upward, the outer gear ring 56 rotates due to its engagement with the rack 58 fixed to the bracket 2. The ratchet groove 561 on the inner wall of the outer gear ring 56 moves the pawl 55, thereby causing the disc 52, connecting shaft 51, and support arm 3 to rotate together. When the lifting slide 23 reaches the upper stop, the pawl 55, under the action of the first spring 54, engages in the next ratchet groove 561, achieving a precise 180° shift. Subsequently, the lifting slide 23 moves downward again, and the tapping process can then be performed. The entire flipping action is driven solely by the linear motion of the lifting slide 23, requiring no additional rotational power source.

[0066] During the flipping process, the limiting mechanism 6 locks the angle of the support arm 3: the fixed rod 61 at the rear end of the disc 52 rotates with it, and the limiting slider 63 at the end of the crossbar 62 slides in the clearance groove 201. When the flipping is in place, the limiting slider 63 falls into the limiting groove 203 on the corresponding side, forming a rigid positioning to prevent the support arm 3 from deflecting slightly during processing and to ensure that the drilling and tapping axes coincide. When the lifting slide 23 moves upward again, the limiting slider 63 disengages from the limiting groove 203 with the crossbar 62, releasing the degree of freedom for the next flipping.

[0067] Example 3

[0068] The difference from Embodiment 2 is that this embodiment discloses the specific structures of the fixing mechanism 7 and the triggering mechanism 8;

[0069] The fixing mechanism 7 includes a pair of support columns 71, which are symmetrically fixedly connected to the left and right sides of the upper end of the base 1. A placement seat 72 is fixedly connected between the upper ends of the pair of support columns 71. A pair of rotating shafts 73 are rotatably connected to the lower end of the placement seat 72 through a bearing seat. Gear columns 76 are fixedly connected to the side walls of the pair of rotating shafts 73 respectively. The pair of gear columns 76 mesh with each other. Support rods 74 are fixedly connected to the side walls of the left and right sides of the pair of rotating shafts 73. A stop rod 75 is fixedly connected between the ends of the left and right support rods 74.

[0070] The triggering mechanism 8 includes a pressure plate 81, which is slidably connected to the side wall between two limit guide rods 21. The pressure plate 81 has a first inclined surface at both ends. The lower end of the pressure plate 81 is symmetrically fixedly connected to the left and right sides, and the lower end of the reset spring 83 is fixedly connected to the upper end of the base 1. The triggering mechanism 8 also includes a transmission assembly 85, a limit locking assembly 84, and an unlocking assembly 82.

[0071] The transmission assembly 85 includes a pair of limiting rods 851, which are fixedly connected to the left and right sides of the lower end of the pressure plate 81. A movable plate 852 is slidably connected between the side walls of the pair of limiting rods 851. A third spring 853 is fixedly connected to the left and right sides of the upper end of the movable plate 852. The upper end of the third spring 853 is fixedly connected to the lower end of the pressure plate 81. A connecting rod 854 is hinged to the left and right sides of the front end of the movable plate 852. The connecting rod 854 is inclined downward from back to front. The ends of the pair of connecting rods 854 are hinged to a connecting rod 855. The connecting rod 855 is inclined upward from back to front. The ends of the connecting rod 855 are fixedly connected to the side wall of the front rotating shaft 73.

[0072] The limiting locking assembly 84 includes a pair of support frames 841, which are fixedly connected to the left and right sides of the upper end of the base 1 respectively. The support frames 841 have mounting holes 842 on their opposite ends. The mounting holes 842 are slidably connected to the locking blocks 843. The opposite ends of the locking blocks 843 are provided with a second inclined surface. The opposite ends of the locking blocks 843 are fixedly connected to a second spring 844. The end of the second spring 844 away from the locking blocks 843 is fixedly connected to the inner wall of the mounting holes 842. The locking blocks 843 are located on the left and right sides below the pressure plate 81 and cooperate with each other.

[0073] The unlocking component 82 includes a pair of sleeves 821, which are slidably connected to the side walls of the corresponding limiting guide rods 21. The lower ends of the pair of sleeves 821 are fixedly connected to the upper ends of the pressure plate 81. An unlocking plate 822 is slidably connected to the side wall of the sleeves 821. A third inclined surface is provided at the opposite end of the unlocking plate 822.

[0074] In this embodiment, as Figures 6-10As shown, the placement seat 72 is used to support the round tube. In the initial state, the two abutment rods 75 are in the open position. When the lifting slide 23 moves down for the first time, the lower end of its abutment sleeve 232 first contacts the pressure plate 81. The pressure plate 81 moves down against the return spring 83, and the first inclined surface pushes the locking block 843 back into the mounting hole 842. The moving plate 852 descends synchronously under the guidance of the limit rod 851. Through the connecting rod 854 and the connecting rod 855, it pulls the front rotating shaft 73 to rotate. The two meshing gear columns 76 then rotate in opposite directions, driving the abutment rods 75 to hug the round tube and automatically center itself. When the pressure plate 81 continues to move down to the lowest point of the drilling, the locking block 843 pops out under the action of the second spring 844. Due to the lower edge of the third inclined surface exceeding the limit, the pressure plate 81 moves down to the lowest point of the drilling. As the pressure plate 81 moves downward, the lower edge of the third inclined surface abuts against the second inclined surface, causing the unlocking plate 822 to slide upward on the outer wall of the sleeve 821. This places the locking block 843 between the pressure plate 81 and the unlocking plate 822, with the lower end face of the locking block 843 abutting against the upper end face of the pressure plate 81. Simultaneously, the second spring 844 restricts the displacement of the locking block 843 within a certain range, causing the lower edge of the third inclined surface to fall onto the second inclined surface, thus achieving the locking effect of the abutment rod 75. When the abutment rod 75 encircles the round tube, the drilling head 48 just touches the tube wall. When the locking block 843 abuts against the upper end face of the pressure plate 81, the drilling is completed.

[0075] After drilling is completed, the lifting slide 23 moves upward, and the pressure plate 81 is temporarily stopped by the locking block 843, while the stop rod 75 remains clamped. When the lifting slide 23 moves downward again to tap, the unlocking plate 822 moves down with the sleeve 821. The unlocking plate 822 pushes the locking block 843 and retracts into the mounting hole 842. At the same time, the lower edge of the second inclined surface moves to the third inclined surface, completing the tapping operation. At this time, the lifting slide 23 moves upward, and the return spring 83 restores its deformation, pushing the pressure plate 81 upward, so that the unlocking plate 822 is on the outer wall of the sleeve 821. The sliding plate 822 contacts the pressure plate 81. At this time, the pressure plate 81 continues to move upward, and the locking block 843 slides directly from the third inclined surface to the first inclined surface, so that the pressure plate 81 reaches the unlocked state. The moving pressure plate 81 drives the moving plate 852 to move upward, and through the connecting rod 854 and the connecting rod 855, the rotating shaft 73 is pulled in the opposite direction to drive the gear column 76 to rotate. The abutment 75 opens accordingly, and the processed round tube can be taken out immediately. The entire clamping and releasing process is completely synchronized with the up and down stroke of the lifting slide 23, and no additional operation is required.

[0076] The working principle of this invention is as follows:

[0077] In the initial state, the abutment 75 of the fixing mechanism 7 is in the open position, the drilling head 48 of the support arm 3 is facing downwards, and the lifting slide 23 is at the upper stop point. When the hydraulic cylinder 22 pushes the lifting slide 23 downwards for the first time, the abutment sleeve 232 first presses the pressure plate 81 of the trigger mechanism 8. The pressure plate 81 moves downwards against the return spring 83, and the first inclined surfaces at both ends push open the locking blocks 843 of the limit locking assembly 84, causing the moving plate 852 to descend synchronously. The moving plate 852 pushes the front rotating shaft 73 to rotate through the connecting rod 854 and the connecting rod 855. The two meshing gear columns 76 rotate in opposite directions, and the abutment 75 gradually surrounds and automatically centers the round tube. After the round tube is fixed, the pressure plate 81 continues to move downwards and passes the locking block 843. The locking block 843 pops out under the action of the second spring 844 and abuts the upper end face of the pressure plate 81. After the round tube is fixed, the drilling head 48 just contacts the tube wall, and the drilling is completed by continuing to descend. After drilling is completed, the lifting slide 23 rises back, the pressure plate 81 is blocked by the clamping block 843 and remains stationary, the push rod 75 remains clamped, and the round tube does not move at all.

[0078] During the upward movement, the shifting mechanism 5 begins to operate: the rack 58, which is fixedly connected to the bracket 2, forces the outer gear ring 56 to rotate. The ratchet groove 561 on the inner wall of the outer gear ring 56 drives the disc 52, the connecting shaft 51, and the support arm 3 to rotate together via the pawl 55. When the lifting slide 23 reaches the upper stop point, the pawl 55 engages in the next ratchet groove 561, and the support arm 3 rotates exactly 180°, causing the tapping head 49 to rotate to the working position. At the same time, the crossbar 62 of the limiting mechanism 6 rotates 180° with the connecting shaft 51.

[0079] Subsequently, the hydraulic cylinder 22 pushes the lifting slide 23 downward again to enter the tapping process. The limiting slider 63 at the end of the crossbar 62 slides into the corresponding limiting groove 203 along the clearance groove 201 to form a rigid positioning, ensuring that the tapping head 49 coincides with the axis of the drilled hole and preventing the support arm 3 from shifting at an angle during the processing stage. When the abutting sleeve 232 drives the sleeve 821 to move downward, the pressure plate 81 continues to move downward. Since the moving plate 852 slides on the limiting rod 851, it squeezes the third spring 853 to prevent the abutting rod 75 from excessively squeezing the round tube. When the unlocking plate 822 moves downward with the sleeve 821, it begins to push the locking block 843 into the mounting hole 842. At the same time, the lower edge of the second inclined surface moves to the third inclined surface, thereby completing the tapping operation. At this time, the lifting slide 23 begins to move upward.

[0080] The specific process is as follows: the lower end of the abutting sleeve 232 presses against the upper end face of the sleeve 821, and the tapping head 49 reaches directly above the drilled hole. The tapping head 49 drives the chuck 47 to rotate through the third bevel gear 46 and the reduction assembly 45. The rotating chuck 47 drives the tapping head 49 to rotate. When the unlocking plate 822 moves below the locking block 843, the thread forming is completed. When the tool is retracted, the output shaft of the motor 41 reverses, the lifting slide 23 rises, and the pressure plate 81 moves upward through the return spring 83. At this time, the locking block 843 slides directly from the third inclined surface to the first inclined surface, so that the pressure plate 81 reaches the unlocked state. The upward-moving pressure plate 81 drives the moving plate 852 to move upward. Through the connecting rod 854 and the connecting rod 855, the rotating shaft 73 is pulled in the opposite direction to drive the gear column 76 to rotate. The abutting rod 75 opens accordingly, and the processed round tube can be taken out immediately. The entire clamping and releasing process is completely synchronized with the up and down stroke of the lifting slide 23, and no additional operation is required.

[0081] While the disclosure is as stated above, its scope of protection is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of this disclosure, and all such changes and modifications will fall within the protection scope of this invention.

Claims

1. A metal material processing device for construction, comprising a base (1), characterized in that, A bracket (2) is fixedly connected to the rear side of the upper end of the base (1). The front end face of the bracket (2) is provided with a clearance groove (201) and a guide groove (202). Limiting guide rods (21) are symmetrically fixedly connected to the left and right ends of the front top of the bracket (2). The lower end of the limiting guide rod (21) is fixedly connected to the upper end of the base (1). A lifting slide (23) is slidably connected between the side walls of a pair of limiting guide rods (21). Abutting sleeves (232) are symmetrically fixedly connected to the left and right sides of the lower end of the lifting slide (23). The abutting sleeves (232) are slidably sleeved on the outer wall of the corresponding limiting guide rods (21). A hydraulic cylinder (22) is fixedly connected to the top of the bracket (2). The telescopic end of the hydraulic cylinder (22) is fixedly connected to the upper end of the lifting slide (23). The bracket also includes: Support arm (3), the support arm (3) is installed at the front end of the lifting slide (23), and the support arm (3) has an installation cavity (31) inside. A drilling and tapping composite mechanism (4) is installed inside the mounting cavity (31) and is used to drill and tap the round tube. The switching mechanism (5) is installed at the rear end of the lifting slide (23). The switching mechanism (5) is used to drive the drilling and tapping composite mechanism (4) to switch between different work positions. The switching mechanism (5) includes a connecting shaft (51) rotatably connected inside the lifting slide (23), a rack (58) fixedly connected to the bracket (2), and an outer gear ring (56), a pawl (55), and a ratchet groove (561) that are linked to the connecting shaft (51). The front end of the connecting shaft (51) is fixedly connected to the rear end of the support arm (3). A disc (52) is fixedly connected to the rear end of the connecting shaft (51). A stop block (53) is symmetrically fixedly connected to the rear end of the disc (52). A first spring (54) is fixedly connected to the side wall of the stop block (53). A pawl (55) is fixedly connected to the end of the first spring (54). The pawl (55) is hinged to the rear end of the disc (52) by a pin. A fixing ring (231) is fixedly connected to the rear end of the lifting slide (23). The fixing ring (231) is coaxial with the connecting shaft (51). The outer wall of the fixing ring (231) is rotatably connected to the outer gear ring (56). The inner wall of the outer gear ring (56) located on the rear side of the fixing ring (231) is provided with a ratchet groove (561). The end of the pawl (55) is engaged in the ratchet groove (561). The right side wall of the outer gear ring (56) is engaged with a rack (58). The right end of the rack (58) is fixedly connected to a fixing block (57). The end of the fixing block (57) is fixedly connected to the front end of the bracket (2). A limiting mechanism (6) is installed on the rear side of the shifting mechanism (5). The limiting mechanism (6) is used to prevent the drilling and tapping composite mechanism (4) from shifting at an angle during the processing. The limiting mechanism (6) includes a limiting slider (63) that rotates with the connecting shaft (51). The limiting mechanism (6) also includes a pair of fixed rods (61). The pair of fixed rods (61) are symmetrically fixedly connected to the left and right sides of the rear end of the disc (52). A crossbar (62) is fixedly connected between the rear ends of the pair of fixed rods (61). The end of the crossbar (62) is fixedly connected to the limiting slider (63). A pair of guide grooves (202) are provided. The guide grooves (202) are located below and connected to the relief groove (201). A limiting groove (203) is opened at the bottom of each pair of guide grooves (202). The limiting sliders (63) are located on the left and right sides inside the relief groove (201), and the limiting sliders (63) and the limiting grooves (203) cooperate with each other. Fixing mechanism (7), which is installed on the upper end of the base (1), is used to clamp and fix the round tube; The triggering mechanism (8) is installed between the limiting guide rods (21). The triggering mechanism (8) includes a pressure plate (81), which is slidably connected to the side wall between the two limiting guide rods (21). The pressure plate (81) has a first inclined surface at both ends. The lower end of the pressure plate (81) is symmetrically fixedly connected to the left and right sides with a return spring (83). The lower end of the return spring (83) is fixedly connected to the upper end of the base (1). The triggering mechanism (8) also includes a transmission assembly (85), a limiting locking assembly (84), and an unlocking assembly (82). The transmission assembly (85) includes a pair of limiting rods (851), which are fixedly connected to the left and right sides of the lower end of the pressure plate (81). A movable plate (852) is slidably connected between the side walls of the pair of limiting rods (851). A third spring (853) is fixedly connected to the left and right sides of the upper end of the movable plate (852). The upper end of the third spring (853) is fixedly connected to the lower end of the pressure plate (81). A connecting rod (854) is hinged to the left and right sides of the front end of the movable plate (852). The connecting rod (854) is inclined downward from back to front. A connecting rod (855) is hinged to the end of the pair of connecting rods (854). The connecting rod (855) is inclined upward from back to front. The end of the connecting rod (855) is fixedly connected to the side wall of the front rotating shaft (73). The limiting locking assembly (84) includes a pair of support frames (841), which are fixedly connected to the left and right sides of the upper end of the base (1). The support frames (841) have mounting holes (842) on their opposite ends. A locking block (843) is slidably connected inside the mounting hole (842). A second inclined surface is provided on the opposite end of the pair of locking blocks (843). A second spring (844) is fixedly connected to the opposite end of the pair of locking blocks (843). The end of the second spring (844) away from the locking block (843) is fixedly connected to the inner wall of the mounting hole (842). The pair of locking blocks (843) are located on the left and right sides below the pressure plate (81) and cooperate with each other. The unlocking component (82) includes a pair of sleeves (821), which are slidably connected to the side walls of the corresponding limiting guide rods (21). The lower ends of the pair of sleeves (821) are fixedly connected to the upper ends of the pressure plate (81). The side walls of the sleeves (821) are slidably connected to an unlocking plate (822), and the opposite end of the unlocking plate (822) is provided with a third inclined surface.

2. The metal material processing device for construction according to claim 1, characterized in that, The drilling and tapping composite mechanism (4) includes a motor (41), which is fixedly connected to the rear side inside the mounting cavity (31). A first bevel gear (42) is fixedly connected to the output shaft end of the motor (41). A second bevel gear (44) and a third bevel gear (46) mesh with the side wall of the first bevel gear (42). The second bevel gear (44) is located below the third bevel gear (46). A first rotating shaft (43) is fixedly connected to the lower end of the second bevel gear (44). The lower end of the first rotating shaft (43) rotates through to the support arm (3). At the lower end, a speed reduction assembly (45) is provided inside the mounting cavity (31). The input end of the speed reduction assembly (45) is fixedly connected to the third bevel gear (46). The output end of the speed reduction assembly (45) is fixedly connected to the lower end of the first rotating shaft (43) with a chuck (47). A drilling head (48) is fixedly connected inside the chuck (47) at the lower end of the support arm (3). A tapping head (49) is fixedly connected inside the chuck (47) at the upper end of the support arm (3). The axes of the drilling head (48) and the tapping head (49) coincide.

3. The metal material processing device for construction according to claim 2, characterized in that, The reduction assembly (45) includes a gearbox (451), which is fixedly connected to the top of the mounting cavity (31) and located in front of the motor (41). A second shaft (452) is rotatably connected to the front side of the lower end of the gearbox (451). The lower end of the second shaft (452) is fixedly connected to the upper end of the third bevel gear (46). The upper end of the second shaft (452) rotatably penetrates into the gearbox (451) and is fixedly connected to a first gear (455). A third shaft (453) is rotatably connected to the rear side of the gearbox (451). 3) A second gear (456) and a third gear (457) are fixedly connected to the side wall. The second gear (456) is located below the third gear (457). The first gear (455) meshes with the second gear (456). A fourth gear (458) meshes with the side wall of the third gear (457). A fourth rotating shaft (454) is fixedly connected to the upper end of the fourth gear (458). The upper end of the fourth rotating shaft (454) rotates through the gearbox (451) and the support arm (3). The upper end of the fourth rotating shaft (454) is fixedly connected to the lower end of the chuck (47) at the upper end of the support arm (3). The first gear (455) and the third gear (457) are of the same model, the second gear (456) and the fourth gear (458) are of the same model, and the ratio of the number of teeth of the second gear (456) to the first gear (455) is 2:

1.

4. The metal material processing device for construction according to claim 1, characterized in that, The fixing mechanism (7) includes a pair of support columns (71), which are symmetrically fixedly connected to the left and right sides of the upper end of the base (1). A placement seat (72) is fixedly connected between the upper ends of the pair of support columns (71). A pair of rotating shafts (73) are rotatably connected to the lower end of the placement seat (72) through a bearing seat. Gear columns (76) are fixedly connected to the side walls of the pair of rotating shafts (73) respectively. The pair of gear columns (76) mesh with each other. Support rods (74) are fixedly connected to the side walls of the left and right sides of the pair of rotating shafts (73). A stop rod (75) is fixedly connected between the ends of the left and right support rods (74).

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