A drill rod machining cutting device

Abstract

The application discloses a drill rod machining cutting device, which comprises a milling machine body, a workbench with a T-shaped groove on the surface of the moving table of the milling machine body, a supporting and clamping mechanism, a pressing and clamping mechanism, a lifting and clamping mechanism and a pressing mechanism, the supporting and clamping mechanism and the pressing and clamping mechanism are arranged on the workbench of the milling machine body, the supporting and clamping mechanism and the pressing and clamping mechanism are matched, a whole-rod type clamping structure is formed by the drill rod accommodating grooves of the supporting and clamping die and the pressing and clamping die, and the traditional segmented supporting clamp is replaced, the rotating and pressing bolts at the two ends of the supporting and clamping die initially clamp and position the drill rod, the counter-pressing tooth blocks of the pressing mechanism are pressed through the inclined counter-windows, the accumulated error of the segmented support is avoided, the drill rod is stable and free of deviation during machining, the whole-rod type clamping design improves the positioning accuracy during the cutting of the flat pin groove from the root, and the machining error problem caused by the segmented adjustment and the supporting gap of the traditional clamp is solved.

Description

Technical Field

[0001] This invention relates to the field of drill rod processing technology, and in particular to a drill rod processing cutting device. Background Technology

[0002] A drill rod is a widely used tool in engineering fields such as drilling, mining, and construction. It generally consists of three parts: the shank, the shaft, and the drill bit. The drill rod is a rod-shaped component connected to a rock drill or other drilling equipment, used to transmit impact energy and torque to drive the drill bit in drilling through rock. During operation, it withstands high-frequency impact loads, torque, and friction, making it one of the key components for drilling operations. When the rock drill is working, the piston performs a high-frequency reciprocating motion, transmitting impact energy to the drill rod through the shank. The drill rod then transmits the energy to the drill bit, causing the drill bit to impact the rock at a high frequency. Simultaneously, the drill rod rotates under the drive of a rotating mechanism, causing the drill bit to cut while impacting the rock, thus breaking the rock and forming a borehole. During drilling, high-pressure water or compressed air introduced through the center hole of the drill rod expels rock cuttings from the hole to ensure smooth drilling.

[0003] The drill rod is processed by forging the blank after material selection and cutting to initially form the shape of the drill rod. Then, the forged blank is machined on a lathe. The drill rod machining includes turning, milling and drilling of the rod material, so that the drill rod blank is processed into a product that meets the design requirements through the cutting process.

[0004] Currently, when machining drill rods, flat pin grooves are machined on the surface of the drill rod to provide an installation position for the flat pins, ensuring accurate installation and positioning of the drill rod on equipment such as hydraulic breakers. These flat pin grooves are typically machined using a milling machine with an end mill. During drill rod machining, the milling machine's worktable surface is usually equipped with a multi-segment support base supplemented by a clamping structure to hold the drill rod. This multi-segment support fixture requires individual adjustment of the position and clamping force of each support segment, making the clamping operation inconvenient. Furthermore, because the multi-segment support fixture is segmented, there may be slight movement errors between the support segments. These errors accumulate during drill rod machining, ultimately affecting the cutting accuracy when machining the flat pin grooves. Therefore, we propose a drill rod machining cutting device. Summary of the Invention

[0005] The main objective of this invention is to provide a cutting device for machining drill rods. By setting a clamping mechanism and a pressing mechanism on the worktable of the milling machine body, the clamping and pressing mechanisms work together to form a whole-piece clamping structure with the drill rod receiving grooves of the clamping and pressing molds, replacing the traditional segmented support fixture. The screw bolts at both ends of the clamping mold initially clamp and position the drill rod. The pressing mechanism's pressing teeth achieve multi-point secondary pressing through oblique windows, avoiding the accumulation of movement errors from segmented supports and ensuring the drill rod is stable and free from deviation during machining. The whole-piece clamping design fundamentally improves the positioning accuracy during flat pin groove cutting, solving the machining error problem caused by segmented adjustments and support gaps in traditional fixtures. The lifting mechanism drives the pressing mold to rise and fall via a hydraulic cylinder, cooperating with the positioning and clamping of trapezoidal lifting grooves and trapezoidal lifting bars to achieve rapid docking and separation of the pressing mold and the clamping mold. During clamping, there is no need to adjust each support segment individually; the lifting of the pressing mold and the multi-point pressing mechanism can be completed with a single button press via the hydraulic system, significantly simplifying the operation process and effectively solving the problems in the background technology.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A chisel machining cutting device includes a milling machine body. The moving table surface of the milling machine body is fixed with a worktable having a T-shaped groove on its surface. It also includes a clamping mechanism, a pressing mechanism, a lifting mechanism, and a pressing and abutting mechanism. The worktable surface is equipped with a clamping mechanism for holding the chisel with both ends. The clamping mechanism is connected to the lifting mechanism and a pressing mechanism for clamping the entire chisel. The top of the pressing mechanism is equipped with a pressing and abutting mechanism for pressing the chisel downward at multiple points. The pressing and abutting mechanism is connected to the lifting mechanism for lifting and lowering to facilitate the removal of the machined chisel.

[0008] Furthermore, the clamping mechanism includes a base plate, a lifting lock block, a clamping mold, and a screw-stop bolt. The base plate is installed in the T-slot of the worktable by the lifting lock block and the flange nut. The clamping mold is welded to the surface of the base plate between the lifting lock blocks. The clamping mold has a drill rod receiving groove inside the mold body. The two ends of the clamping mold have a round protrusion and a block protrusion protruding upwards. The round protrusion and the block protrusion have screw-stop holes that communicate with the drill rod receiving groove inside the clamping mold. A screw-stop bolt for pressing the two ends of the drill rod is screwed into the screw-stop hole. The clamping mold has symmetrical side milling windows near the round protrusion for the end mill to extend into the mold for cutting.

[0009] By adopting the above-mentioned preferred technical solution, after the base plate is embedded and locked in the T-slot of the worktable by means of the lifting and locking block and flange nut, the clamping mold on the surface of the base plate can accommodate half of the rod body of the drill rod by means of its own drill rod receiving groove. At this time, the drill tail and drill bit of the drill rod abut against the round convex part and the block convex part respectively. Then, the screw-abutting bolt is screwed into the screw bottom hole of the round convex part and the block convex part, so as to symmetrically press the drill rod in the clamping mold for initial clamping and positioning, and ensure that the rod body of the drill rod used to process the flat pin groove is located at the side milling machine of the clamping mold.

[0010] Furthermore, a side mounting groove is recessed on the surface of the base plate near the side milling window, and a curved spray pipe for connecting an external cooling liquid supply pipe to spray coolant into the side milling window is inserted into the side mounting groove. A bottom post is welded to the outside of the curved spray pipe at the bend. A post hole for inserting the bottom post is opened in the bottom groove wall of the side mounting groove.

[0011] By adopting the above-mentioned preferred technical solution, after the body of the curved nozzle is inserted into the side mounting groove of the base plate, the curved nozzle is positioned by the bottom post in the post hole of the side mounting groove. Then, the bottom body of the curved nozzle can be screwed to some pipes with threaded fittings to connect to a liquid pump for drawing coolant, so that the coolant can be sprayed along the curved nozzle towards the side milling window of the clamping mold, and effectively cooling the chisel in the cutting process by downward oblique side spray.

[0012] Furthermore, the base plate has a through hole on its surface away from the clamping mold, and a bolt welded to the top of the lifting lock block protrudes outward from the through hole and is screwed into the flange nut. The T-shaped block of the lifting lock block is inserted into the T-shaped groove of the worktable.

[0013] By adopting the above-mentioned preferred technical solution, the bolt of the lifting lock block can be screwed into the flange nut after passing through the hole of the base plate. Then, the T-shaped block of the lifting lock block can be locked into the T-slot of the worktable. When the base plate slides on the surface of the worktable to a position suitable for processing the chisel, the flange nut is tightened with a wrench, so that the lifting lock block is lifted and locked in the T-slot, thereby locking the base plate to the surface of the worktable.

[0014] Furthermore, a clamping mechanism is pressed onto the top of the support mold above the base plate, and the clamping mechanism includes a clamping mold, oblique windows, and trapezoidal lifting grooves. The clamping mold is pressed onto the top of the support mold, and a drill rod receiving groove for clamping the drill rod is opened on the lower mold surface of the clamping mold. The bottom surfaces of the mold body at both ends of the clamping mold away from the drill rod receiving groove inside the mold are symmetrically provided with arc-shaped grooves and block grooves, and round protrusions and block protrusions are respectively clamped in the arc-shaped grooves and block grooves. The mold body of the clamping mold near the arc-shaped groove is symmetrically provided with side milled windows, and the mold body surface of the clamping mold away from its own side milled windows is symmetrically provided with three sets of oblique window grooves.

[0015] By adopting the above-mentioned preferred technical solution, when the clamping mold is placed on the surface of the support mold, the clamping mold is clamped and positioned with the round convex part and block convex part of the support mold by the arc-shaped groove and the block groove, so that the drill rod receiving groove of the clamping mold can cooperate with the drill rod receiving groove of the support mold to clamp the drill rod in one piece, and the three sets of window grooves on the surface of the clamping mold that are oblique to the window can pass through the pressing tooth block of the pressing mechanism.

[0016] Furthermore, a pressing mechanism is installed on the pressing mold surface outside the oblique window. The pressing mechanism includes pressing teeth, a bridge plate, a pressing connecting plate B, a hydraulic cylinder, a notch support plate B, and a vertical bending frame B. The pressing teeth are symmetrically welded to the lower surface of the bridge plate and are inserted into the chisel groove of the pressing mold along the oblique window. The top of the bridge plate is locked with the pressing connecting plate B by bolts, and the pressing connecting plate B is welded to the telescopic rod head of the hydraulic cylinder. The cylinder body of the hydraulic cylinder is locked with the top of the notch support plate B by bolts, and a vertical bending frame B is welded to one side of the plate body of the notch support plate B. The base plate of the vertical bending frame B is locked with bolts to the pressing mold surface outside the oblique window, and the telescopic rod of the hydraulic cylinder passes through the notch groove of the notch support plate B.

[0017] By adopting the above-mentioned preferred technical solution, after the vertical bending frame B of the pressing mechanism is installed on the pressing mold surface near the oblique window, the telescopic rod of the hydraulic cylinder can be inserted into the notch groove of the notch support plate B. Then, the notch support plate B above the vertical bending frame B can be locked to the outer plate seat of the cylinder body of the hydraulic cylinder with bolts. At this time, there is a pressing connecting plate B below the telescopic rod of the hydraulic cylinder, which can be locked to the bridge plate with bolts. This facilitates the hydraulic cylinder to drive the bridge plate to rise and fall, so that the pressing tooth block below the bridge plate can enter the chisel groove of the pressing mold along the oblique window to perform secondary pressing on the chisel.

[0018] Furthermore, a lifting mechanism is installed between the clamping mold and the base plate. The lifting mechanism includes a connecting plate A, a hydraulic lifting cylinder, a notched support plate A, a vertical bending frame A, a counter-pressure tooth block, and a bridge plate. The base plate near the top round protrusion and block protrusion of the clamping mold is symmetrically locked with the bottom plate of the vertical bending frame A by bolts. The notched support plate A is welded to the upper bending plate of the vertical bending frame A. The hydraulic lifting cylinder is locked with bolts at the notched support plate A. The telescopic rod of the hydraulic lifting cylinder passes through the notched support plate A and is then welded with the connecting plate A. The connecting plate A is locked to both ends of the top mold body of the clamping mold by bolts.

[0019] By adopting the above-mentioned preferred technical solution, after the clamping plate A of the lifting mechanism is locked to the surface of the clamping mold by bolts, the hydraulic lifting cylinder welded to the clamping plate A can be locked to the notch support plate A by bolts, so that the telescopic rod of the hydraulic lifting cylinder can be raised and lowered at the notch support plate A. At the same time, the vertical bending frame A on one side of the notch support plate A can be locked to the surface of the base plate by bolts to obtain support, so that the lifting mechanism can drive the clamping mold to be raised and lowered.

[0020] Furthermore, the clamping mold has symmetrical trapezoidal grooves for clamping trapezoidal lifting strips at both ends of the mold body near the pressure plate A, and the trapezoidal lifting strips are welded to the bottom of the pressure plate A in the center.

[0021] By adopting the above-mentioned preferred technical solution, when the pressure plate A is bolted to the clamping mold, the pressure plate A can be positioned and locked in the trapezoidal lifting groove of the clamping mold by means of the trapezoidal lifting bar. The interlocking connection between the trapezoidal lifting bar and the trapezoidal lifting groove can also enhance the connection stability and firmness between the pressure plate A and the clamping mold, ensuring that the clamping mold can be raised and lowered stably.

[0022] Furthermore, the clamping mold has symmetrical protrusions in the fixed block groove for inserting the block protrusion, and the top of the block protrusion is offset to have a rectangular fixed groove for clamping the fixed plate.

[0023] By adopting the above-mentioned preferred technical solution, after the fixed block groove of the clamping mold is fitted with the block protrusion, the fixed plate is inserted into the rectangular fixed groove of the block protrusion for secondary positioning and connection, ensuring the precise guiding and docking of the clamping mold and the support mold, and ensuring that the clamping mold and the support mold can stably clamp the drill rod.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] This invention provides a clamping mechanism and a pressing mechanism on the worktable of the milling machine body. Through the cooperation of the clamping mechanism and the pressing mechanism, the drill rod receiving groove of the clamping mold and the pressing mold form a whole-piece clamping structure, replacing the traditional segmented support fixture. The screw bolts at both ends of the clamping mold initially clamp and position the drill rod, and the pressing mechanism's pressing teeth achieve multi-point secondary pressing through oblique windows, avoiding the accumulation of movement errors in segmented support and ensuring that the drill rod is stable and without deviation during processing. The whole-piece clamping design fundamentally improves the positioning accuracy during flat pin groove cutting and solves the processing error problem caused by segmented adjustment and support gaps in traditional fixtures.

[0026] The lifting and clamping mechanism drives the lifting and lowering of the clamping mold through a hydraulic cylinder. With the positioning and clamping of the trapezoidal lifting groove and trapezoidal lifting bar, it realizes the rapid docking and separation of the clamping mold and the supporting mold. During clamping, there is no need to adjust the support sections one by one. The lifting and lowering of the clamping mold and the multi-point pressure of the pressing and abutting mechanism can be completed with one click through the hydraulic system, which significantly simplifies the operation process. At the same time, the base plate can be flexibly adjusted in installation position with the help of the quick locking structure of the lifting locking block and the T-slot of the worktable, which greatly shortens the clamping time and meets the needs of high-efficiency production.

[0027] The base plate of the clamping mechanism has a curved spray pipe to achieve downward oblique side spray cooling, which directly sprays coolant onto the cutting area, effectively reducing tool temperature and flushing away waste chips, thus improving the service life of the end mill. The open design of the side milling window facilitates the discharge of waste materials, avoids chip accumulation that affects machining accuracy, provides stable cooling and chip removal for high-speed cutting, and creates a good machining environment. Attached Figure Description

[0028] Figure 1 This is a schematic diagram of the overall structure of a drill rod processing cutting device according to the present invention.

[0029] Figure 2 This is a schematic diagram showing the worktable and clamping mechanism of a drill bit processing cutting device according to the present invention.

[0030] Figure 3 This is a schematic diagram showing the disassembled clamping mechanism and clamping mechanism of a drill rod processing cutting device according to the present invention.

[0031] Figure 4 This is an exploded view of the clamping mechanism of a chisel machining cutting device according to the present invention.

[0032] Figure 5 This is an exploded view of the clamping mechanism of a chisel machining cutting device according to the present invention.

[0033] Figure 6 This is an exploded view of the clamping mechanism of a drill rod machining cutting device according to the present invention.

[0034] Figure 7 This is an exploded view of the pressing mechanism of a chisel machining cutting device according to the present invention.

[0035] Figure 8 This is a diagram showing the bottom cavity of the clamping die in a drill bit processing cutting device according to the present invention.

[0036] Figure 9 This is a schematic diagram showing the disassembled curved nozzle and side mounting groove of a chisel processing cutting device according to the present invention.

[0037] In the diagram: 1. Milling machine body; 2. Worktable; 3. Clamping mechanism; 4. Pressing mechanism; 5. Lifting mechanism; 6. Pressing and abutting mechanism; 7. Base plate; 8. Lifting lock block; 9. Flange nut; 10. Clamping mold; 11. Chisel groove; 12. Side milling window; 13. Round protrusion; 14. Block protrusion; 15. Rotary abutting hole; 16. Rotary abutting bolt; 17. Side mounting groove; 18. Curved spray pipe; 19. Pressing mold; 20. Angled window; 21. Trapezoidal lifting groove; 22. Pressing connecting plate A; 23. Trapezoidal lifting bar; 24. Hydraulic lifting cylinder; 25. Notched support plate A; 26. Vertical bending frame A; 27. Counter-pressure tooth block; 28. Bridge plate; 29. ​​Pressing connecting plate B; 30. Hydraulic pressing cylinder; 31. Notched support plate B; 32. Vertical bending frame B; 33. Arc fixed groove; 34. Fixed block groove. Detailed Implementation

[0038] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below in conjunction with specific embodiments.

[0039] like Figure 1-9As shown, a chisel machining cutting device includes a milling machine body 1. The moving table surface of the milling machine body 1 is fixed with a worktable 2 with a T-shaped groove on its surface. It also includes a clamping mechanism 3, a pressing mechanism 4, a lifting mechanism 5, and a pressing and abutting mechanism 6. The worktable 2 is equipped with a clamping mechanism 3 for holding the chisel with both ends. The clamping mechanism 3 is connected to the lifting mechanism 5 and a pressing mechanism 4 is connected to the clamping mechanism 3 to clamp the entire chisel. The pressing mechanism 4 is equipped with a pressing and abutting mechanism 6 at its top for pressing the chisel downward at multiple points. The pressing mechanism 4 is connected to the lifting mechanism 5 for lifting and lowering movement to facilitate the removal of the machined chisel.

[0040] The clamping mechanism 3 includes a base plate 7, a locking block 8, a clamping mold 10, and a screw-stop bolt 16. The base plate 7 is installed in the T-slot of the workbench 2 by the locking block 8 and the flange nut 9. The clamping mold 10 is welded to the surface of the base plate 7 between the locking blocks 8. The clamping mold 10 has a drill rod receiving groove 11 inside the mold body. The two ends of the clamping mold 10 have a round protrusion 13 and a block protrusion 14 protruding upwards. The round protrusion 13 and the block protrusion 14 have screw-stop holes 15 that communicate with the drill rod receiving groove 11 inside the clamping mold 10. A screw-stop bolt 16 for pressing the two ends of the drill rod is screwed into the screw-stop hole 15. The clamping mold 10 has symmetrical side milling windows 12 near the round protrusion 13 for the end mill to extend into the mold for cutting.

[0041] By adopting the above-mentioned preferred technical solution, after the base plate 7 is embedded and locked in the T-slot of the worktable 2 by means of the lifting locking block 8 and the flange nut 9, the clamping mold 10 on the surface of the base plate 7 can accommodate half of the rod body of the drill rod by means of its own drill rod receiving groove 11. At this time, the drill tail and the drill bit of the drill rod abut against the round convex part 13 and the block convex part 14 respectively. Then, the screw-abutting bolt 16 is screwed into the screw bottom hole 13 of the round convex part 13 and the block convex part 14, so that the drill rod is symmetrically pressed against in the clamping mold 10 for initial clamping and positioning, and ensures that the rod body of the drill rod used to process the flat pin groove is located at the side milling machine 12 of the clamping mold 10.

[0042] The base plate 7 has a recessed side mounting groove 17 near the side milling window 12, and a curved spray pipe 18 for connecting an external cooling liquid supply pipe to spray coolant into the side milling window 12 is inserted into the side mounting groove 17. A bottom post is welded to the outside of the curved spray pipe 18 at the bend. A post hole for inserting the bottom post is opened in the bottom groove wall of the side mounting groove 17.

[0043] By adopting the above-mentioned preferred technical solution, after the body of the curved nozzle 18 is inserted into the side mounting groove 17 of the base plate 7, the curved nozzle 18 is positioned by the bottom post in the post hole of the side mounting groove 17. Then, the bottom body of the curved nozzle 18 can be screwed to some pipes with threaded fittings to connect to a liquid pump for drawing coolant, so that the coolant can be sprayed along the curved nozzle 18 toward the side milling window 12 of the clamping mold 10, and effectively cool the chisel in the cutting process by downward oblique side spray.

[0044] Wherein, the base plate 7 has a through hole on the plate surface away from the clamping mold 10, and a bolt welded to the top of the lifting lock block 8 protrudes outward and is screwed into the flange nut 9. The T-shaped block of the lifting lock block 8 is inserted into the T-shaped groove of the workbench 2.

[0045] By adopting the above-mentioned preferred technical solution, after the bolt of the lifting locking block 8 passes through the through hole of the base plate 7, it can be connected by screwing on the flange nut 9. Then, the T-shaped block of the lifting locking block 8 can be locked into the T-shaped groove of the worktable 2. When the base plate 7 slides on the surface of the worktable 2 to a position suitable for processing the chisel, the flange nut 9 is tightened with a wrench, so that the lifting locking block 8 is lifted and locked in the T-shaped groove, thereby locking the base plate 7 to the surface of the worktable 2.

[0046] The clamping mold 10 above the base plate 7 has a clamping mechanism 4 pressed on its top. The clamping mechanism 4 includes a clamping mold 19, oblique windows 20, and trapezoidal lifting grooves 21. The clamping mold 19 is pressed on the top of the clamping mold 10. The lower mold surface of the clamping mold 19 has a drill rod receiving groove 11 for clamping the drill rod. The bottom surfaces of the mold body at both ends of the clamping mold 19 away from the drill rod receiving groove 11 are symmetrically provided with arc-shaped grooves 33 and block grooves 34. The arc-shaped grooves 33 and block grooves 34 are respectively fitted with round protrusions 13 and block protrusions 14. The clamping mold 19 has symmetrically provided side milled windows 12 near the arc-shaped grooves 33. The mold body surface of the clamping mold 19 away from its own side milled windows 12 has symmetrically provided with three sets of window grooves with oblique windows 20.

[0047] By adopting the above-mentioned preferred technical solution, when the clamping mold 19 is placed on the surface of the support mold 10, the clamping mold 19 is engaged and positioned with the round protrusion 13 and the block protrusion 14 of the support mold 10 by the arc-shaped groove 33 and the block groove 34, so that the drill rod receiving groove 11 of the clamping mold 19 can cooperate with the drill rod receiving groove 11 of the support mold 10 to clamp the drill rod in one piece, and the three sets of window grooves on the surface of the clamping mold 19 that are oblique to the window 20 can pass through the pressing tooth block 27 of the pressing mechanism 6.

[0048] The clamping mold 19 on the outer side of the oblique window 20 is equipped with a pressing mechanism 6. The pressing mechanism 6 includes a pressing tooth block 27, a bridge plate 28, a pressing connecting plate B29, a hydraulic cylinder 30, a notch support plate B31, and a vertical bending frame B32. The pressing tooth block 27 is symmetrically welded to the lower surface of the bridge plate 28 and is inserted into the drill rod groove 11 of the clamping mold 19 along the oblique window 20. The top of the bridge plate 28 is bolted to the pressing connecting plate B29, and the pressing connecting plate B29 is welded to the telescopic rod head of the hydraulic cylinder 30. The cylinder body of the hydraulic cylinder 30 is bolted to the top of the notch support plate B31, and a vertical bending frame B32 is welded to one side of the plate body of the notch support plate B31. The base plate of the vertical bending frame B32 is bolted to the surface of the clamping mold 19 on the outer side of the oblique window 20. The telescopic rod of the hydraulic cylinder 30 passes through the notch groove of the notch support plate B31.

[0049] By adopting the above-mentioned preferred technical solution, after the upright bending frame B32 of the pressing mechanism 6 is installed on the surface of the clamping mold 19 near the oblique window 20, the telescopic rod of the hydraulic cylinder 30 can be inserted into the notch slot of the notch support plate B31. Then, the notch support plate B31 above the upright bending frame B32 can be locked to the outer plate seat of the cylinder body of the hydraulic cylinder 30 with bolts. At this time, there is a pressure connecting plate B29 below the telescopic rod of the hydraulic cylinder 30, which can be locked with the bridge plate 28 with bolts, so that the hydraulic cylinder 30 can drive the bridge plate 28 to rise and fall, so that the counter-pressing tooth block 27 below the bridge plate 28 can enter the chisel groove 11 of the clamping mold 19 along the oblique window 20 to perform secondary pressing on the chisel.

[0050] The clamping mold 19 is connected to the base plate 7 by a lifting mechanism 5. The lifting mechanism 5 includes a clamping plate A22, a hydraulic lifting cylinder 24, a notch support plate A25, a vertical bending frame A26, a counter-clamping tooth block 27, and a bridge plate 28. The base plate 7 is symmetrically bolted to the bottom plate of the vertical bending frame A26 on one side of the plate near the top round protrusion 13 and block protrusion 14 of the clamping mold 10. The upper bending plate of the vertical bending frame A26 is welded to the notch support plate A25. The hydraulic lifting cylinder 24 is bolted to the notch support plate A25. The telescopic rod of the hydraulic lifting cylinder 24 passes through the notch support plate A25 and is then welded to the clamping plate A22. The clamping plate A22 is bolted to both ends of the top mold body of the clamping mold 19.

[0051] By adopting the above-mentioned preferred technical solution, after the pressing plate A22 of the lifting mechanism 5 is locked to the surface of the pressing mold 19 by bolts, the hydraulic lifting cylinder 24 welded to the pressing plate A22 can be locked to the notch support plate A25 by bolts, so that the telescopic rod of the hydraulic lifting cylinder 24 can be raised and lowered at the notch support plate A25. At the same time, the vertical bending frame A26 on one side of the notch support plate A25 can be locked to the surface of the base plate 7 by bolts to obtain support, so that the lifting mechanism 5 can drive the pressing mold 19 to be raised and lowered.

[0052] The clamping mold 19 has trapezoidal lifting grooves 21 symmetrically opened at both ends of the mold body near the pressure plate A22 for clamping the trapezoidal lifting strip 23, and the trapezoidal lifting strip 23 is welded in the middle below the pressure plate A22.

[0053] By adopting the above-mentioned preferred technical solution, when the pressure plate A22 is bolted to the clamping mold 19, the pressure plate A22 can be positioned and locked in the trapezoidal lifting groove 21 of the clamping mold 19 by means of the trapezoidal lifting strip 23. Furthermore, the interlocking connection between the trapezoidal lifting strip 23 and the trapezoidal lifting groove 21 can also enhance the connection stability and firmness between the pressure plate A22 and the clamping mold 19, ensuring that the clamping mold 19 can be raised and lowered stably.

[0054] The clamping mold 19 has symmetrical protrusions in the fixed block groove 34 for inserting the fixed plate of the block protrusion 14, and the top of the block protrusion 14 is offset to have a rectangular fixed groove for clamping the fixed plate.

[0055] By adopting the above-mentioned preferred technical solution, after the block protrusion 14 is engaged in the fixed slot 34 of the clamping mold 19, a fixed plate is inserted into the rectangular fixed slot of the block protrusion 14 in the fixed slot 34 for secondary positioning and connection, ensuring the precise guiding docking of the clamping mold 19 and the support mold 10, and ensuring that the clamping mold 19 and the support mold 10 can stably clamp the drill rod.

[0056] It should be noted that the present invention is a chisel machining cutting device. The clamping mechanism 3 and the clamping mechanism 4 of the present invention are connected and assembled with the worktable 2 of the milling machine body 1 to form a chisel machining cutting device.

[0057] After the lifting and locking block 8 of the clamping mechanism 3 passes through the hole of the base plate 7 with a bolt, it can be connected by screwing on the flange nut 9. Then, the T-shaped block of the lifting and locking block 8 can be inserted into the T-shaped groove of the worktable 2 for locking and sliding. When the base plate 7 slides on the surface of the worktable 2 to a position suitable for processing the chisel, the flange nut 9 is tightened with a wrench, so that the lifting and locking block 8 is lifted and locked in the T-shaped groove, thereby locking the base plate 7 to the surface of the worktable 2.

[0058] Then, the clamping mechanism 6 can be installed at the clamping mold 19 of the clamping mechanism 4. After the vertical bending frame B32 of the clamping mechanism 6 is bolted and installed on the surface of the clamping mold 19 near the oblique window 20, the telescopic rod of the hydraulic cylinder 30 can be inserted into the notch slot of the notch support plate B31. Then, the notch support plate B31 above the vertical bending frame B32 can be bolted to the outer plate seat of the cylinder of the hydraulic cylinder 30. At this time, the pressure connecting plate B29 below the telescopic rod of the hydraulic cylinder 30 can be bolted to the bridge plate 28, which facilitates the hydraulic cylinder 30 to drive the bridge plate 28 to rise and fall. Then, the counter-pressure tooth block 27 below the bridge plate 28 can enter the chisel groove 11 of the clamping mold 19 along the oblique window 20.

[0059] Then, the clamping mechanism 3 and the pressing mechanism 4 are assembled using the lifting clamping mechanism 5. The pressing plate A22 of the lifting clamping mechanism 5 can be positioned and clamped in the trapezoidal lifting groove 21 of the pressing mold 19 using the trapezoidal lifting bar 23. Then, the pressing plate A22 and the pressing mold 19 are locked with bolts. Next, the telescopic rod of the hydraulic lifting cylinder 24 above the pressing plate A22 can be inserted into the notched support plate A25, and the cylinder outer plate seat of the hydraulic lifting cylinder 24 is locked with bolts. At this time, the vertical bending frame A26 on the outside of the notched support plate A25 can be locked to the surface of the base plate 7 with bolts to obtain support.

[0060] After the body of the curved nozzle 18 is inserted into the side mounting groove 17 of the base plate 7, the curved nozzle 18 is positioned by the bottom post in the post hole of the side mounting groove 17. Then, the bottom body of the curved nozzle 18 can be screwed to some pipes with threaded fittings to connect to a liquid pump that draws coolant to obtain coolant. At the pipe body connecting the curved nozzle 18 and the coolant pump, two pipe sections can also be equipped with a simple liquid valve for connection, which makes it convenient to control the amount of coolant sprayed from the curved nozzle 18.

[0061] When the drill rod needs to be machined for the flat pin groove, the hydraulic lifting cylinder 24 can be used to lift the clamping mold 19, and then the drill rod can be placed into the drill rod receiving groove 11 of the clamping mold 10. At this time, the screwing bolts 16 can be screwed into the screwing holes 15 of the round protrusion 13 and the block protrusion 14 to perform the initial clamping of both ends of the drill rod. Then the hydraulic lifting cylinder 24 can lower the clamping mold 19. The clamping mold 19 uses its own drill rod receiving groove 11 to cooperate with the drill rod receiving groove 11 of the clamping mold 10 to perform the whole-length clamping of the drill rod. Then the hydraulic cylinder 24 of the clamping mechanism 6 can drive the bridge plate 28 to descend. The clamping teeth 27 under the bridge plate 28 guide the descent along the three sets of inclined windows 20 opened on the surface of the clamping mold 19, thereby performing multi-point secondary clamping of the whole-length clamped drill rod, so that the drill rod is stably clamped on the surface of the worktable 2 of the milling machine body 1. Then the coolant pump can draw coolant to the curved spray pipe 18, so that the coolant can flow smoothly. The curved nozzle 18 sprays coolant onto the side milling window 12 of the clamping mold 10. At this time, a milling cutter can be installed at the tool holder of the milling machine body 1. Then, the milling machine uses the milling cutter to cut the flat pin groove at the side milling window 12 of the clamping mold 10 and the pressure mold 19. At this time, the curved nozzle 18 can spray coolant onto the drill rod during the cutting process, thereby performing downward oblique side spray cooling. The waste material after the drill rod is cut can fall out from the side milling window 12. After the drill rod is stably clamped by the clamping mold 10 and the pressure mold 19, it is ensured that the drill rod is not prone to movement error during the processing, and the accuracy of the drill rod when machining the flat pin groove is ensured. After the drill rod is processed, the coolant at the curved nozzle 18 is turned off, and then the pressure mold 19 is lifted by the hydraulic lifting cylinder 24. Then, the screw bolt 16 is screwed outward. Then, the drill rod can be taken out from the clamping mold 10 for subsequent processing. The waste at the clamping mold 10 can be manually blown out with an air gun to facilitate the next set.

[0062] In this invention, to facilitate the demonstration of the installation position of the clamping mechanism 5, the side of the base plate 7 with the vertical bending frame A26 is displayed on the worktable 2 away from the milling machine body 1. To facilitate the loading and unloading of the drill rod, the side of the base plate 7 with the vertical bending frame A25 can be installed closer to the surface of the worktable 2 of the milling machine body 1, thus reducing the impact of the vertical bending frame A26 on the loading and unloading position of the drill rod during processing. Furthermore, this invention only provides a side mounting groove 17 on the base plate 7 on one side of the clamping mold 10 to install the curved nozzle 18. If the drill rod requires double-sided processing, side mounting grooves 17 can be provided on both sides of the clamping mold 10 to install the nozzle 18. Furthermore, in this invention, the two sets of vertical bending frames B32 installed on the surface of the clamping mold 19 near its own side milling window 12 maintain sufficient spacing to prevent the hydraulic pressure cylinder 30 above the vertical bending frame B32 from affecting the machining space of the end mill. The height of the hydraulic pressure cylinder 30 and the vertical bending frame B32 can be reduced as needed, thereby further increasing the machining space of the end mill. At the same time, the end mill can also be a long-shank end mill to obtain sufficient machining space. The hydraulic lifting cylinder 24 and the hydraulic pressure cylinder 30 in this invention need to be connected to an existing external hydraulic system for on-demand control. The lifting and lowering of the clamping mold 19 and the multi-point pressure of the pressing mechanism 6 can be completed with one click through the hydraulic system, which can significantly simplify the operation process.

[0063] It should be noted that the present invention is a cutting device for chisel processing. All components in the present invention are known to those skilled in the art, and their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0064] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A chisel machining cutting device, comprising a milling machine body (1), wherein a worktable (2) with a T-groove on its surface is fixed to the moving table surface of the milling machine body (1), characterized in that: It also includes a clamping mechanism (3), a pressing mechanism (4), a lifting mechanism (5), and a pressing mechanism (6). The workbench (2) is equipped with a clamping mechanism (3) for holding the drill rod with both ends, and a pressing mechanism (4) is installed at the clamping mechanism (3) through the lifting mechanism (5) to clamp the entire drill rod. The pressing mechanism (4) is equipped with a pressing mechanism (6) at the top of the pressing mechanism (4) for pressing the drill rod downward at multiple points. The pressing mechanism (4) is lifted and lowered by the lifting mechanism (5) to facilitate the removal of the drill rod after processing. The clamping mechanism (3) includes a base plate (7), a lifting lock block (8), a clamping mold (10), and a screw bolt (16). The base plate (7) is installed in the T-slot of the workbench (2) by the lifting lock block (8) and the flange nut (9). The clamping mold (10) is welded to the surface of the base plate (7) between the lifting lock blocks (8). The clamping mold (10) has a drill rod receiving groove (11) in its mold body, and the two ends of the clamping mold (10) are die heads. The mold has a round protrusion (13) and a block protrusion (14) that protrude upwards. The round protrusion (13) and the block protrusion (14) are provided with screw-off holes (15) that communicate with the drill rod receiving groove (11) inside the mold (10). Screw-off bolts (16) for pressing against both ends of the drill rod are screwed into the screw-off holes (15). The mold (10) near the round protrusion (13) has symmetrically provided side milling windows (12) for the end mill to extend into the mold for cutting. The base plate (7) has a recessed side mounting groove (17) near the side milling window (12), and a curved spray pipe (18) for connecting an external cooling liquid supply pipe to spray coolant into the side milling window (12) is inserted into the side mounting groove (17), and a bottom post is welded to the outside of the curved spray pipe (18) at the bend. A post hole for inserting the bottom post is opened in the bottom groove wall of the side mounting groove (17). The base plate (7) has a through hole on its surface away from the clamping mold (10), and a bolt welded to the top of the lifting lock block (8) protrudes outward and is screwed into the flange nut (9). The T-shaped block of the lifting lock block (8) is inserted into the T-shaped groove of the worktable (2). A clamping mechanism (4) is pressed onto the top of the clamping mold (10) above the base plate (7). The clamping mechanism (4) includes a clamping mold (19), an oblique window (20), and a trapezoidal lifting groove (21). The clamping mold (19) is pressed onto the top of the clamping mold (10), and the lower mold surface of the clamping mold (19) is provided with a drill rod receiving groove (11) for clamping the drill rod. The clamping mold (19) is located away from the drill rod receiving groove (11) inside the mold. The bottom surface of the end mold body is symmetrically provided with an arc-shaped groove (33) and a block groove (34), and a round protrusion (13) and a block protrusion (14) are respectively installed in the arc-shaped groove (33) and the block groove (34). The clamping mold (19) is symmetrically provided with a side milled window (12) near the arc-shaped groove (33), and the clamping mold (19) is symmetrically provided with three sets of window slots with oblique windows (20) on the surface of the mold body away from its own side milled window (12). A pressing mechanism (6) is installed on the surface of the clamping mold (19) on the outside of the oblique window (20). The pressing mechanism (6) includes a pressing tooth block (27), a bridge plate (28), a pressing connecting plate B (29), a hydraulic cylinder (30), a notch support plate B (31), and a vertical bending frame B (32). The pressing tooth block (27) is symmetrically welded to the lower surface of the bridge plate (28), and the pressing tooth block (27) is inserted into the chisel groove (11) of the clamping mold (19) along the oblique window (20). The top of the bridge plate (28) passes through... Bolts are used to lock the pressure plate B (29), and the pressure plate B (29) is welded to the telescopic rod head of the hydraulic cylinder (30). The cylinder body of the hydraulic cylinder (30) is locked to the top of the notch support plate B (31) by bolts, and a vertical bending frame B (32) is welded to one side of the plate body of the notch support plate B (31). The base plate of the vertical bending frame B (32) is locked to the surface of the clamping mold (19) on the outside of the oblique window (20) by bolts. The telescopic rod of the hydraulic cylinder (30) passes through the notch groove of the notch support plate B (31). A lifting mechanism (5) is installed between the clamping mold (19) and the base plate (7). The lifting mechanism (5) includes a clamping plate A (22), a hydraulic lifting cylinder (24), a notch support plate A (25), a vertical bending frame A (26), a counter-clamping tooth block (27), and a bridge plate (28). The base plate (7) is symmetrically locked with the bottom plate of the vertical bending frame A (26) by bolts on one side of the top round protrusion (13) and block protrusion (14) of the clamping mold (10). The notch support plate A (25) is welded to the upper bending plate of the vertical bending frame A (26). The hydraulic lifting cylinder (24) is locked with bolts at the notch support plate A (25). The telescopic rod head of the hydraulic lifting cylinder (24) passes through the notch support plate A (25) and is then welded with the clamping plate A (22). The clamping plate A (22) is locked with bolts to both ends of the top mold body of the clamping mold (19).

2. The drill rod machining cutting device according to claim 1, characterized in that: The clamping mold (19) has trapezoidal grooves (21) symmetrically opened at both ends of the mold body near the clamping plate A (22) for clamping the trapezoidal lifting strip (23), and the trapezoidal lifting strip (23) is welded in the middle below the clamping plate A (22).

3. The drill rod machining cutting device according to claim 2, characterized in that: The clamping mold (19) has symmetrical protrusions in the fixed block groove (34) for inserting the fixed plate of the block protrusion (14), and the top of the block protrusion (14) is offset to open a rectangular fixed groove for clamping the fixed plate.

Images