Vertical multi-spindle drilling machine for nodular cast iron pipe fitting machining

Abstract

The invention relates to the technical field of drilling machines, and discloses a vertical multi-spindle drilling machine for nodular cast iron pipe fitting machining, the vertical multi-spindle drilling machine comprises a placing plate, a cast iron pipe body and a bottom frame fixedly installed at the bottom of the placing plate, one side of the back face of the top of the placing plate is fixedly connected with a back plate, the top of the back plate is fixedly connected with a top plate, and the vertical multi-spindle drilling machine further comprises a telescopic air cylinder; the placing plates are symmetrically and fixedly mounted at the bottom of the top plate, the bottom ends of telescopic parts of the telescopic air cylinders are fixedly connected with a mounting plate, positioning mechanisms are symmetrically arranged at the top of the placing plates, and a drilling mechanism is arranged at the bottom of the mounting plate; the drill rod is mounted below the mounting plate, and an electromagnet is fixedly mounted on the lower portion of one side of the front face of the back plate; the positioning mechanism comprises a side rod and a vertical toothed plate and further comprises a driving belt wheel and a driven belt wheel, and the problems that a workpiece to be machined is inconvenient to clamp and position, the follow-up drilling precision is affected, and splashing scrap iron falls on the surface of a pipe fitting, and drilling operation is hindered are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of drilling machines, and particularly to a vertical multi-axis drilling machine for processing ductile iron pipe fittings. Background Art

[0002] A vertical drilling machine has a vertically arranged spindle with a fixed central position, abbreviated as a vertical drill. It is commonly used in machining medium and small workpieces in machinery manufacturing and repair factories. During the drilling process of the existing vertical drilling machine, to improve the drilling accuracy, an additional clamping and positioning structure is usually required to position the workpiece to reduce the deviation of the workpiece during drilling. At the same time, it is also necessary to collect the iron chips generated during drilling.

[0003] For example, a feeding mechanism of a vertical multi-axis drilling machine with the publication number CN218460949U includes a vertical drilling machine body and a support table, and the support table is installed on the outer side wall of the vertical drilling machine body; it also includes a lifting device, a driving device, a first slider, a connecting arm, a square column, a square sleeve, a push rod and a push plate. The support table is arranged on the side of the vertical drilling machine body, and the support table is installed on the lifting device. A chute is provided inside the support table, and the first slider is slidably installed left and right on the chute through the driving device. The right end of the connecting arm is connected to the left end of the first slider, the bottom end of the square column is connected to the left part of the top end of the connecting arm, the square sleeve is slidably sleeved on the outer side wall of the square column up and down, and a set screw is provided on the outer side wall of the square sleeve. The left end of the push rod is connected to the outer side wall of the square sleeve, reducing the labor intensity of personnel for lifting and transporting the workpiece, and improving the convenience of the feeding mechanism for automatically lifting the height of the workpiece and pushing and conveying it. However, during the drilling process of this drilling machine device, it is not convenient to clamp and position the workpiece to be processed, reducing the positioning effect of the workpiece, affecting the subsequent drilling accuracy, reducing the processing quality, and the splashing iron chips falling on the surface of the pipe fittings will also hinder the progress of the drilling operation.

[0004] Therefore, a vertical multi-axis drilling machine for processing ductile iron pipe fittings is proposed to solve the above-mentioned problems. Summary of the Invention

[0005] The purpose of the present invention is to provide a vertical multi-axis drilling machine for processing ductile iron pipe fittings to solve the problems of inconvenient clamping and positioning of the workpiece to be processed, affecting the subsequent drilling accuracy, and the splashing iron chips falling on the surface of the pipe fittings, which will also hinder the progress of the drilling operation.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A vertical multi-axis drilling machine for processing ductile iron pipe fittings includes a placement plate, a cast iron pipe body, and a chassis fixedly installed at the bottom of the placement plate. One side of the top of the placement plate is fixedly connected to a back plate, and the top of the back plate is fixedly connected to a top plate; It further includes: The telescopic cylinder is symmetrically and fixedly installed at the bottom of the top plate. The bottom end of the telescopic part of the telescopic cylinder is fixedly connected with a mounting plate. The top of the placing plate is symmetrically provided with a positioning mechanism, and the bottom of the mounting plate is provided with a drilling mechanism; The drill rod is installed below the mounting plate. An electromagnet is fixedly installed at the lower part of one side of the front surface of the back plate; The positioning mechanism includes a side rod and a vertical toothed plate. One end of the side rod is fixedly connected with the mounting plate. The positioning mechanism further includes a main pulley and a driven pulley. Both the main pulley and the driven pulley are rotatably connected with the placing plate. A main gear is fixedly connected to the side of the main pulley away from the placing plate; The vertical toothed plate is meshed with the main gear. A toothed belt is adaptively connected between the main pulley and the driven pulley. A driven gear is fixedly connected to the side of the driven pulley away from the placing plate. Symmetrical sliding grooves are formed at the top of the placing plate. A sliding rod is slidably connected inside the sliding groove. One end of the sliding rod passes through the sliding groove and is fixedly connected with a horizontal rack; The top of the sliding rod passes through the placing plate and is fixedly connected with a pushing plate. Slide rods are symmetrically and slidably connected inside the pushing plate. The same positioning plate is fixedly connected to one ends of the two slide rods close to the back plate. A first spring is sleeved on the outer side of the slide rod. Jacks are symmetrically formed on one side of the positioning plate close to the pushing plate; Plug rods are symmetrically and fixedly connected to one side of the pushing plate close to the positioning plate. A horizontal groove is formed inside the positioning plate. An adsorption groove is formed on one side of the positioning plate close to the back plate. Springs II are symmetrically and fixedly connected to both ends inside the horizontal groove. One end of the spring II is fixedly connected with an inner rod. An inclined groove is formed on one side of the inner rod close to the jack;

[0007] Preferably, there are no less than four telescopic cylinders. The bottom ends of the telescopic parts of the telescopic cylinders on the same side are all fixedly connected with the same mounting plate. The side rod is L-shaped. The vertical toothed plate is located on the side of the main pulley away from the driven pulley.

[0008] By adopting the above technical solution, multiple telescopic cylinders improve the stability of the ascending and descending of the mounting plate.

[0009] Preferably, the top end of the vertical toothed plate is fixedly connected with the side rod. The main pulley and the driven pulley are located outside the placing plate. The horizontal rack is located outside the placing plate. The horizontal rack is located above the driven pulley. The horizontal rack is meshed with the driven pulley.

[0010] By adopting the above technical solution, the downward movement of the vertical toothed plate drives the meshed main pulley to rotate, and the main pulley drives the driven pulley to rotate through the toothed belt, so that the driven pulley drives the meshed horizontal rack to move.

[0011] Preferably, the first spring is slidably connected to the sliding rod. One end of the first spring is fixedly connected to the pushing plate, and the other end of the first spring is fixedly connected to the positioning plate.

[0012] By adopting the above technical solution, the pushing plate drives the positioning plate to move through the first spring, so that the positioning plate abuts against the front surface of the cast iron pipe body, thereby facilitating the preliminary fixing of the cast iron pipe body.

[0013] Preferably, two jacks are symmetrically provided. The number of the inserting rods is the same as that of the jacks, and the positions correspond to each other one by one. The inserting rods are slidably connected to the jacks, and the transverse groove is communicated with the adsorption groove.

[0014] By adopting the above technical solution, the pushing plate slides on the sliding rod and compresses the first spring. The pushing plate drives the inserting rod to insert into the jack, and the inserting rod presses the inclined surface of the inclined groove, so that the two inner rods move away from each other.

[0015] Preferably, the jack is communicated with the transverse groove. The two inner rods are in contact with each other. The inclined groove is trapezoidally provided. The bottom surface of the inserting rod is in contact with the top surface of the placing plate.

[0016] By adopting the above technical solution, the inner rod slides in the transverse groove and compresses the second spring, so that the adsorption groove is communicated with the transverse groove, and the inside of the adsorption groove is in a negative pressure state.

[0017] Preferably, the drilling mechanism includes a circular cover body fixedly installed at the bottom of the mounting plate. A motor is fixedly installed in the middle of the top of the mounting plate. The output end of the motor passes through the mounting plate and is fixedly connected with a central gear. The central gear is rotatably connected with the mounting plate. Arc-shaped grooves are symmetrically provided at the bottom of the circular cover body.

[0018] By adopting the above technical solution, loosen the mounting bolts and fixing bolts outside the mounting bearing, and pull the two adjusting rods to move forward or backward along an arc-shaped track. The adjusting rods slide inside the arc-shaped grooves, which is convenient for adjusting the positions of the adjusting rods.

[0019] Preferably, an adjusting rod is slidably connected inside the arc-shaped groove. An external gear is fixedly connected to the outer side of the upper part of the adjusting rod. The external gear is meshed with the central gear. A mounting bearing is sleeved on the outer side of the lower part of the adjusting rod. The drill rod is fixedly installed at the bottom end of the adjusting rod.

[0020] By adopting the above technical solution, the adjusting rod drives the mounting bearing to move, and the mounting bearing drives the connecting rod to move, so that the connecting rod telescopically adjusts inside the fixed sleeve. After adjustment, tighten the mounting bolts to fix the mounting bearing at the bottom of the circular cover body.

[0021] Preferably, the adjusting rod is rotatably connected to the mounting bearing. The mounting bearing is fixedly installed on the round cover body through mounting bolts. One side of the mounting bearing is fixedly connected with a connecting rod. The outer sides of the two connecting rods are sleeved with the same fixing sleeve. The bottom of the fixing sleeve is symmetrically threadedly connected with fixing bolts, and the fixing bolts are abutted against the connecting rods.

[0022] By adopting the above technical solution, after adjustment, the fixing bolts are tightened, which is convenient for positioning the connecting rod, thereby improving the adjustment flexibility of the drill pipe and the drilling stability.

[0023] Compared with the prior art, the beneficial effects of the present invention are as follows: A positioning mechanism is provided to initially fix the cast iron pipe body, and a negative pressure state can be achieved inside the adsorption groove, which is convenient for the positioning plate to better adsorb the cast iron pipe body. Thus, during the subsequent drilling process, the situation that the cast iron pipe body is unstable due to vibration is reduced, the drilling accuracy is improved, and the splashed iron chips are adsorbed on the electromagnet for temporary storage, reducing the influence of the iron chips on the drilling of the cast iron pipe body. 1. A positioning mechanism is provided. During operation, first, the electromagnet is powered on, and the cast iron pipe body is placed on the placing plate, and the back surface of the cast iron pipe body is adsorbed by the electromagnet. Then, the telescopic cylinder is started to drive the mounting plate to descend. The mounting plate drives the side rod and the vertical toothed plate to descend. The vertical toothed plate drives the meshing main pulley to rotate. The main pulley drives the main gear to rotate, and the main pulley drives the driven pulley to rotate through the toothed belt. The driven pulley drives the meshing horizontal rack to move. The horizontal rack drives the sliding rod to slide inside the chute. The sliding rod simultaneously drives the pushing plate to move. The pushing plate drives the positioning plate to move through the first spring, so that the positioning plate abuts against the front surface of the cast iron pipe body, thereby facilitating the initial fixation of the cast iron pipe body. Then, the mounting plate drives the drill pipe to contact the cast iron pipe body, and the drill pipe drills the cast iron pipe body. At this time, the telescopic cylinder continues to drive the mounting plate to descend, the position of the positioning plate remains unchanged, the pushing plate slides on the sliding rod and compresses the first spring, the pushing plate drives the insertion rod to insert into the insertion hole, the insertion rod presses the inclined surface of the inclined groove, so that the two inner rods move away from each other, the inner rods slide in the transverse groove and compress the second spring, so that the adsorption groove is communicated with the transverse groove, increasing the storage volume of the gas inside the adsorption groove, so that the inside of the adsorption groove is in a negative pressure state, which is convenient for the positioning plate to better adsorb the cast iron pipe body. During the subsequent drilling process, the situation that the cast iron pipe body is unstable due to vibration is reduced, the drilling accuracy is improved, and the splashed iron chips are adsorbed on the electromagnet for temporary storage, reducing the influence of the iron chips on the drilling of the cast iron pipe body, solving the problems of inconvenient clamping and positioning of the workpiece to be processed, affecting the subsequent drilling accuracy, and the splashed iron chips falling on the surface of the pipe fitting, which will also hinder the progress of the drilling operation. 2. A drilling mechanism is provided. When the motor is started, the motor drives the central gear to rotate, the central gear drives the outer gear to rotate, the outer gear drives the adjusting rod to rotate, and the adjusting rod drives the drill rod to rotate, facilitating the drilling of the drill rod. When it is necessary to adjust the spacing of the drill rods, loosen the mounting bolts and fixing bolts on the outside of the mounting bearing, and pull the two adjusting rods to move forward or backward along an arc trajectory. The adjusting rod slides inside the arc-shaped groove, always keeping the outer gear meshed with the adjusting rod. The adjusting rod drives the mounting bearing to move, and the mounting bearing drives the connecting rod to move, enabling the connecting rod to telescopically adjust inside the fixed sleeve. After adjustment, tighten the mounting bolts to fix the mounting bearing at the bottom of the circular cover body, facilitating the fixing of the positions of the adjusting rod and the drill rod. Then tighten the fixing bolts to facilitate the positioning of the connecting rod, thereby improving the adjustment flexibility and drilling stability of the drill rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic diagram of the overall three-dimensional structure of the first embodiment of the present invention; Figure 2 is a schematic diagram of the overall three-dimensional structure of the second embodiment of the present invention; Figure 3 is a schematic diagram of the sectional structure of the placing plate of the present invention; Figure 4 For the present invention Figure 3 is an enlarged schematic diagram of part A in the present invention; Figure 5 For the present invention Figure 3 is an enlarged schematic diagram of part B in the present invention; Figure 6 is a schematic diagram of the installation structure of the main pulley and the driven pulley of the present invention; Figure 7 is a schematic diagram of the installation structure of the driven gear of the present invention; Figure 8 is a schematic diagram of the sectional structure of the positioning plate of the present invention; Figure 9 For the present invention Figure 8 is an enlarged schematic diagram of part C in the present invention; Figure 10 is a schematic diagram of the installation structure of the circular cover body of the present invention; Figure 11 is a schematic diagram of the sectional structure of the circular cover body of the present invention; Figure 12 For the present invention Figure 11 is an enlarged schematic diagram of part D in the present invention.

[0025] In the figure: 1. Placing plate; 2. Underframe; 3. Back plate; 4. Top plate; 5. Cast iron pipe body; 6. Telescopic cylinder; 7. Mounting plate; 8. Positioning mechanism; 81. Side rod; 82. Vertical toothed plate; 83. Main pulley; 84. Main gear; 85. Driven pulley; 86. Toothed belt; 87. Driven gear; 88. Slide groove; 89. Slide bar; 810. Horizontal rack; 811. Pushing plate; 812. Slide bar; 813. Positioning plate; 814. First spring; 815. Jack; 816. Plug rod; 817. Horizontal groove; 818. Adsorption groove; 819. Second spring; 820. Inner rod; 821. Inclined groove; 9. Drilling mechanism; 91. Round cover body; 92. Motor; 93. Central gear; 94. Arc groove; 95. Adjusting rod; 96. Outer gear; 97. Mounting bearing; 98. Connecting rod; 99. Fixed sleeve; 910. Fixed bolt; 10. Drill rod; 11. Electromagnet. Specific embodiments

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0027] Please refer to Figures 1 - 12 , the present invention provides a technical solution: a vertical multi-axis drill for processing ductile iron pipe fittings, including a placing plate 1, a cast iron pipe body 5, and an underframe 2 fixedly installed at the bottom of the placing plate 1. One side of the top back of the placing plate 1 is fixedly connected with a back plate 3, and the top of the back plate 3 is fixedly connected with a top plate 4.

[0028] Telescopic cylinders 6 are symmetrically and fixedly installed at the bottom of the top plate 4, and the bottom end of the telescopic part of the telescopic cylinder 6 is fixedly connected with a mounting plate 7.

[0029] A drill rod 10 is installed below the mounting plate 7. An electromagnet 11 is fixedly installed at the lower part of one side of the front of the back plate 3, and the model of the electromagnet 11 can adopt a frame-type electromagnet.

[0030] Positioning mechanisms 8 are symmetrically arranged on the top of the placing plate 1. The positioning mechanism 8 includes a side rod 81 and a vertical toothed plate 82. One end of the side rod 81 is fixedly connected with the mounting plate 7. The positioning mechanism 8 further includes a main pulley 83 and a driven pulley 85. Both the main pulley 83 and the driven pulley 85 are rotatably connected to the placing plate 1, and a main gear 84 is fixedly connected to the side of the main pulley 83 away from the placing plate 1.

[0031] There are at least four telescopic cylinders 6, and the model of the telescopic cylinders 6 can adopt SC standard cylinders. The bottom ends of the telescopic parts of the telescopic cylinders 6 on the same side are fixedly connected to the same mounting plate 7. The side rod 81 is L-shaped, and the vertical toothed plate 82 is located on the side of the main pulley 83 away from the driven pulley 85.

[0032] The vertical toothed plate 82 is meshed and connected with the main gear 84. A toothed belt 86 is adaptively connected between the main pulley 83 and the driven pulley 85. A driven gear 87 is fixedly connected to the side of the driven pulley 85 away from the placing plate 1. Symmetric sliding grooves 88 are formed at the top of the placing plate 1. A sliding rod 89 is slidably connected inside the sliding groove 88. One end of the sliding rod 89 passes through the sliding groove 88 and is fixedly connected with a horizontal rack 810.

[0033] The top end of the vertical toothed plate 82 is fixedly connected to the side rod 81. The main pulley 83 and the driven pulley 85 are located outside the placing plate 1. The horizontal rack 810 is located outside the placing plate 1. The horizontal rack 810 is located above the driven pulley 85. The horizontal rack 810 is meshed and connected with the driven pulley 85.

[0034] The top of the sliding rod 89 passes through the placing plate 1 and is fixedly connected with a pushing plate 811. Slide rods 812 are symmetrically and slidably connected inside the pushing plate 811. The ends of the two slide rods 812 close to the back plate 3 are fixedly connected to the same positioning plate 813. A first spring 814 is sleeved on the outer side of the slide rod 812. Symmetric jacks 815 are formed on the side of the positioning plate 813 close to the pushing plate 811.

[0035] The first spring 814 is slidably connected with the slide rod 812. One end of the first spring 814 is fixedly connected to the pushing plate 811, and the other end of the first spring 814 is fixedly connected to the positioning plate 813.

[0036] On the side of the pushing plate 811 close to the positioning plate 813, insertion rods 816 are symmetrically and fixedly connected. A horizontal groove 817 is formed inside the positioning plate 813. An adsorption groove 818 is formed on the side of the positioning plate 813 close to the back plate 3. At both ends inside the horizontal groove 817, second springs 819 are symmetrically and fixedly connected. One end of the second spring 819 is fixedly connected to an inner rod 820. An inclined groove 821 is formed on the side of the inner rod 820 close to the jack 815.

[0037] Two jacks 815 are symmetrically formed. The number of the insertion rods 816 is the same as that of the jacks 815, and the positions correspond one by one. The insertion rods 816 are slidably connected with the jacks 815. The horizontal groove 817 is communicated with the adsorption groove 818.

[0038] The jacks 815 are communicated with the horizontal groove 817. The two inner rods 820 are in contact with each other. The inclined groove 821 is trapezoidally formed. The bottom surface of the insertion rod 816 is in contact with the top surface of the placing plate 1.

[0039] Example 1: As Figures 1 - 9As shown in the figure, first, the electromagnet 11 is energized, and the cast iron pipe body 5 is placed on the placement plate 1, and the back surface of the cast iron pipe body 5 is adsorbed by the electromagnet 11. Then, the telescopic cylinder 6 is started to drive the mounting plate 7 to descend. The mounting plate 7 drives the side rod 81 and the vertical toothed plate 82 to descend. The vertical toothed plate 82 drives the meshing main pulley 83 to rotate. The main pulley 83 drives the main gear 84 to rotate, and the main pulley 83 drives the driven pulley 85 to rotate through the toothed belt 86. The driven pulley 85 drives the meshing horizontal rack 810 to move.

[0040] The horizontal rack 810 drives the sliding rod 89 to slide inside the chute 88. The sliding rod 89 simultaneously drives the push plate 811 to move. The push plate 811 drives the positioning plate 813 to move through the first spring 814, so that the positioning plate 813 abuts against the front surface of the cast iron pipe body 5, thereby facilitating the preliminary fixation of the cast iron pipe body 5.

[0041] Then, the mounting plate 7 drives the drill rod 10 to contact the cast iron pipe body 5. The drill rod 10 drills the cast iron pipe body 5. At this time, the telescopic cylinder 6 continues to drive the mounting plate 7 to descend. The position of the positioning plate 813 remains unchanged. The push plate 811 slides on the sliding rod 812 and compresses the first spring 814. The push plate 811 drives the insertion rod 816 to insert into the insertion hole 815. The insertion rod 816 squeezes the inclined surface of the inclined groove 821, so that the two inner rods 820 move away from each other.

[0042] The inner rod 820 slides in the horizontal groove 817 and compresses the second spring 819, so that the adsorption groove 818 is communicated with the horizontal groove 817, increasing the storage volume of the gas inside the adsorption groove 818. Thus, the inside of the adsorption groove 818 is in a negative pressure state, which is convenient for the positioning plate 813 to better adsorb the cast iron pipe body 5. During the subsequent drilling process, the situation that the cast iron pipe body 5 is unstable due to vibration is reduced, the drilling accuracy is improved, and the splashing iron chips are adsorbed on the electromagnet 11 for temporary storage, reducing the influence of the iron chips on the drilling of the cast iron pipe body 5, and solving the problems of inconvenient clamping and positioning of the workpiece to be processed, affecting the subsequent drilling accuracy, and the splashing iron chips falling on the surface of the pipe fitting, which will also hinder the progress of the drilling operation.

[0043] A drilling mechanism 9 is provided at the bottom of the mounting plate 7. The drilling mechanism 9 includes a circular cover body 91 fixedly installed at the bottom of the mounting plate 7. A motor 92 is fixedly installed in the middle of the top of the mounting plate 7. The output end of the motor 92 passes through the mounting plate 7 and is fixedly connected with a central gear 93. The central gear 93 is rotationally connected with the mounting plate 7. Arc-shaped grooves 94 are symmetrically opened at the bottom of the circular cover body 91.

[0044] An adjusting rod 95 is slidably connected inside the arc-shaped groove 94. An external gear 96 is fixedly connected to the outer side of the upper part of the adjusting rod 95. The external gear 96 is meshed with the central gear 93. A mounting bearing 97 is sleeved on the outer side of the lower part of the adjusting rod 95. The drill rod 10 is fixedly installed at the bottom end of the adjusting rod 95.

[0045] The adjusting rod 95 is rotatably connected to the mounting bearing 97. The mounting bearing 97 is fixedly installed on the circular cover body 91 through mounting bolts. One side of the mounting bearing 97 is fixedly connected with a connecting rod 98. The outer sides of the two connecting rods 98 are sleeved with the same fixing sleeve 99. The bottom of the fixing sleeve 99 is symmetrically threadedly connected with fixing bolts 910, and the fixing bolts 910 are abutted against the connecting rod 98.

[0046] Example Two: As Figures 10 - 12 shown, start the motor 92. The motor 92 drives the central gear 93 to rotate. The central gear 93 drives the outer gear 96 to rotate. The outer gear 96 drives the adjusting rod 95 to rotate. The adjusting rod 95 drives the drill rod 10 to rotate, facilitating the drilling of the drill rod 10. When it is necessary to adjust the spacing of the drill rod 10, by loosening the mounting bolts and the fixing bolts 910 on the outer side of the mounting bearing 97, pull the two adjusting rods 95 to move forward or backward along an arc trajectory. The adjusting rod 95 slides inside the arc-shaped groove 94, always making the outer gear 96 mesh with the adjusting rod 95. The adjusting rod 95 drives the mounting bearing 97 to move. The mounting bearing 97 drives the connecting rod 98 to move, enabling the connecting rod 98 to telescopically adjust inside the fixing sleeve 99. After adjustment, tighten the mounting bolts to fix the mounting bearing 97 at the bottom of the circular cover body 91, facilitating the fixation of the positions of the adjusting rod 95 and the drill rod 10. Then tighten the fixing bolts 910 to facilitate the positioning of the connecting rod 98, thereby improving the adjustment flexibility and drilling stability of the drill rod 10.

[0047] Working principle: When using this device, first, as Figures 1 - 12 shown, first energize the electromagnet 11, place the cast iron pipe body 5 on the placing plate 1, and make the back surface of the cast iron pipe body 5 adsorbed by the electromagnet 11. Then start the telescopic cylinder 6 to drive the mounting plate 7 to descend. The mounting plate 7 drives the side rod 81 and the vertical toothed plate 82 to descend. The positioning plate 813 abuts against the front surface of the cast iron pipe body 5. Then the mounting plate 7 drives the drill rod 10 to contact the cast iron pipe body 5. Start the motor 92. The motor 92 drives the central gear 93 to rotate, facilitating the drilling of the drill rod 10. At this time, the telescopic cylinder 6 continues to drive the mounting plate 7 to descend. The position of the positioning plate 813 remains unchanged. The pushing plate 811 slides on the sliding rod 812 and compresses the first spring 814. The pushing plate 811 drives the inserting rod 816 to insert into the jack 815, making the inside of the adsorption groove 818 in a negative pressure state, facilitating the positioning plate 813 to better adsorb the cast iron pipe body 5. When it is necessary to adjust the spacing of the drill rod 10, by loosening the mounting bolts and the fixing bolts 910 on the outer side of the mounting bearing 97, pull the two adjusting rods 95 to move forward or backward synchronously along an arc. After adjustment, tighten the mounting bolts and the fixing bolts 910, improving the adjustment flexibility and drilling stability of the drill rod 10. After drilling is completed, start the telescopic cylinder 6 to drive the mounting plate 7 to rise, and the positioning plate 813 can be moved away and reset, facilitating the removal of the cast iron pipe body 5.

[0048] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0049] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A vertical multi-axis drilling machine for machining ductile iron pipe fittings, comprising a placement plate (1), a cast iron pipe body (5), and a base frame (2) fixedly mounted on the bottom of the placement plate (1), a back plate (3) fixedly connected to one side of the top back of the placement plate (1), and a top plate (4) fixedly connected to the top of the back plate (3); It is characterized in that Also includes: The telescopic cylinder (6) is symmetrically fixedly mounted on the bottom of the top plate (4); the bottom end of the telescopic portion of the telescopic cylinder (6) is fixedly connected to a mounting plate (7); a positioning mechanism (8) is symmetrically arranged on the top of the placement plate (1); and a drilling mechanism (9) is arranged on the bottom of the mounting plate (7); A drill rod (10) is mounted below the mounting plate (7), and an electromagnet (11) is fixedly mounted on the lower portion of the front side of the back plate (3); The positioning mechanism (8) comprises a side rod (81) and a vertical tooth plate (82), one end of the side rod (81) is fixedly connected to the mounting plate (7), and the positioning mechanism (8) further comprises a main pulley (83) and a secondary pulley (85), both of which are rotationally connected to the placement plate (1), and a main gear (84) is fixedly connected to the side of the main pulley (83) away from the placement plate (1); The vertical tooth plate (82) is meshedly connected with the main gear (84); a toothed belt (86) is adapted to be connected between the main pulley (83) and the slave pulley (85); a slave gear (87) is fixedly connected to the side of the slave pulley (85) away from the placement plate (1); a slide groove (88) is symmetrically provided on the top of the placement plate (1); a sliding rod (89) is slidably connected inside the slide groove (88); one end of the sliding rod (89) passes through the slide groove (88) and is fixedly connected to a transverse rack (810); The top of the sliding rod (89) passes through the placement plate (1) and is fixedly connected to a push plate (811); the interior of the push plate (811) is symmetrically slidably connected to a sliding rod (812); one end of the two sliding rods (812) close to the back plate (3) is fixedly connected to the same positioning plate (813); a spring (814) is sleeved on the outer side of the sliding rod (812); and a plug hole (815) is symmetrically provided on one side of the positioning plate (813) close to the push plate (811); A plug rod (816) is symmetrically fixedly connected to one side of the push plate (811) close to the positioning plate (813); a transverse groove (817) is provided inside the positioning plate (813); an adsorption groove (818) is provided on one side of the positioning plate (813) close to the back plate (3); two ends of the transverse groove (817) are symmetrically fixedly connected to a second spring (819); one end of the second spring (819) is fixedly connected to an inner rod (820); and a slanted groove (821) is provided on one side of the inner rod (820) close to the insertion hole (815).

2. A vertical multi-axis drilling machine for machining ductile iron pipe fittings according to claim 1, characterized in that: There are no less than four telescopic cylinders (6), the bottom ends of the telescopic parts of the telescopic cylinders (6) on the same side are fixedly connected to the same mounting plate (7), the side rods (81) are arranged in an L shape, and the vertical tooth plate (82) is located on the side of the main pulley (83) away from the secondary pulley (85).

3. A vertical multi-axis drilling machine for machining ductile iron pipe fittings according to claim 2, characterized in that: The top end of the vertical tooth plate (82) is fixedly connected to the side rod (81); the main pulley (83) and the slave pulley (85) are located outside the placement plate (1); the transverse rack (810) is located outside the placement plate (1); the transverse rack (810) is located above the slave pulley (85); and the transverse rack (810) is meshingly connected to the slave pulley (85).

4. A vertical multi-axis drilling machine for machining ductile iron pipe fittings according to claim 1, characterized in that: The spring one (814) is slidably connected to the slide rod (812), one end of the spring one (814) is fixedly connected to the push plate (811), and the other end of the spring one (814) is fixedly connected to the positioning plate (813).

5. A vertical multi-axis drilling machine for machining ductile iron pipe fittings according to claim 4, characterized in that: The plug holes (815) are symmetrically provided with two of them, the number of the plug rods (816) is the same as the plug holes (815), and the positions correspond one to one, the plug rods (816) are slidably connected to the plug holes (815), and the transverse grooves (817) are connected to the adsorption grooves (818).

6. A vertical multi-axis drilling machine for machining ductile iron pipe fittings according to claim 5, characterized in that: The insertion hole (815) is connected to the transverse groove (817), the two inner rods (820) are fitted together, the inclined groove (821) is opened in a trapezoidal shape, and the bottom surface of the insertion rod (816) is fitted with the top surface of the placement plate (1).

7. A vertical multi-axis drilling machine for machining ductile iron pipe fittings according to claim 1, characterized in that: The drilling mechanism (9) comprises a circular cover (91) fixedly mounted on the bottom of a mounting plate (7); a motor (92) is fixedly mounted in the middle of the top of the mounting plate (7); an output end of the motor (92) passes through the mounting plate (7) and is fixedly connected to a central gear (93); the central gear (93) is rotatably connected to the mounting plate (7); and arc grooves (94) are symmetrically provided at the bottom of the circular cover (91).

8. A vertical multi-axis drilling machine for machining ductile iron pipe fittings according to claim 7, characterized in that: An adjusting rod (95) is slidably connected inside the arc-shaped groove (94), an outer gear (96) is fixedly connected to the outer side of the upper portion of the adjusting rod (95), the outer gear (96) is meshingly connected to the central gear (93), a mounting bearing (97) is sleeved and mounted on the outer side of the lower portion of the adjusting rod (95), and the drill rod (10) is fixedly mounted on the bottom end of the adjusting rod (95).

9. A vertical multi-axis drilling machine for machining ductile iron pipe fittings according to claim 8, characterized in that: The adjusting rod (95) is rotatably connected to the mounting bearing (97); the mounting bearing (97) is fixedly mounted to the round cover body (91) via mounting bolts; a connecting rod (98) is fixedly connected to one side of the mounting bearing (97); the outer sides of the two connecting rods (98) are sleeved with a same fixing sleeve (99); the bottom of the fixing sleeve (99) is symmetrically threadedly connected with fixing bolts (910); the fixing bolts (910) are in contact with the connecting rod (98).

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