Cutter device for machining deep hole of valve body

Abstract

The utility model relates to the technical field of valve body deep hole machining, in particular to a cutter device for machining a valve body deep hole, which comprises a drilling device, a cutter holder is rotatably connected in the drilling device, the lower end of the cutter holder is movably connected with a mounting head, the lower end of the mounting head is fixedly connected with a cutter body, a through hole is formed in the drilling device, and the cutter body is fixedly connected with the mounting head. Cooling grooves are formed in the mounting head and the cutter body correspondingly, the through holes communicate with the cooling grooves, clamping blocks are fixedly connected to the outer walls of the two sides of the drilling device correspondingly, mounting rings rotationally sleeve the outer walls of the clamping blocks correspondingly, and spring telescopic rods are fixedly connected to the two sides of the lower end face of each mounting ring correspondingly; an annular pipe is fixedly connected to the outer wall of a cylinder body of the spring telescopic rod. According to the cooling device, the cutter body is cooled from the inside through the cooling groove, the cutter body is uniformly sprayed and cooled from the outside through the spray heads on the annular pipe, and the inside and the outside are matched with each other, so that a better cooling effect is achieved.

Description

Technical Field

[0001] This utility model relates to the field of deep hole machining technology for valve bodies, and in particular to a cutting tool device for machining deep holes in valve bodies. Background Technology

[0002] Machining deep holes in valve bodies involves drilling holes in various valve bodies using a drilling device. Drilling deep holes requires a tooling device specifically designed for this purpose. Some traditional tooling devices for machining deep holes in valve bodies consist of mounting a tool holder and a drill bit onto a drilling device. A motor drives the tool holder to rotate, thus drilling the hole. Since drilling generates a lot of heat, cooling is necessary.

[0003] Existing tooling devices for machining deep holes in valve bodies typically use a spray nozzle on one side of the device to spray and cool the tool holder and tool head. This cooling method leads to uneven heating of the tool, which has an impact even when the tool is rotating rapidly. Moreover, the external spray cooling effect is generally not good. Based on this, we propose an improved tooling device for machining deep holes in valve bodies. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a tooling device for machining deep holes in valve bodies.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a cutting tool device for machining deep holes in valve bodies, comprising a drilling device, a tool holder rotatably connected inside the drilling device, an installation head movably connected to the lower end of the tool holder, a tool body fixedly connected to the lower end of the installation head, a through hole opened inside the drilling device, cooling grooves opened on both the installation head and the tool body, the through hole communicating with the cooling grooves, locking blocks fixedly connected to both outer walls of the drilling device, an installation ring rotatably sleeved on the outer wall of the locking block, spring telescopic rods fixedly connected to both sides of the lower end face of the installation ring, an annular tube fixedly connected to the outer wall of the spring telescopic rod, a nozzle fixedly connected to the inner wall of the annular tube, a connecting pipe fixedly connected to the outer wall of the annular tube, a three-way valve fixedly connected to the other end of the connecting pipe, an inlet pipe fixedly connected to one end of the three-way valve, and the other end of the three-way valve fixedly connected to the through hole via a pipe.

[0006] The above technical solution achieves internal cooling of the blade through the cooling tank and external uniform spray cooling through the nozzles on the annular pipe. The combination of internal and external cooling results in a better cooling effect.

[0007] As a further description of the above technical solution:

[0008] There are two sets of cooling grooves, and the two sets of cooling grooves located inside the blade are arranged in a double spiral shape.

[0009] The above technical solutions increase the cooling contact area and improve the cooling effect.

[0010] As a further description of the above technical solution:

[0011] Mounting holes are provided on one side of the outer wall of both the tool holder and the mounting head, and internal hex bolts are threaded into the mounting holes.

[0012] With the above technical solution, the mounting head is fixedly installed by screwing the internal hex bolt into the two mounting holes, which facilitates the disassembly and replacement of the blade as needed.

[0013] As a further description of the above technical solution:

[0014] A motor is fixedly connected to the upper end of the drilling device. The output end of the motor passes through the drilling device and is fixedly connected to a gear. A gear ring is fixedly connected to the outer wall of the tool holder. The gear is rotatably disposed inside the drilling device, and the gear meshes with the gear ring.

[0015] The above technical solution uses a motor to drive a gear to rotate, which in turn drives a gear ring to rotate, thereby controlling the rotation of the tool holder.

[0016] As a further description of the above technical solution:

[0017] The nozzles are provided in multiple ways, and the multiple nozzles are evenly distributed on the inner wall of the annular tube.

[0018] The above technical solution ensures uniform spray cooling of the blade.

[0019] As a further description of the above technical solution:

[0020] The lower ends of the two spring telescopic rods are fixedly connected to pressure plates, and a circular opening is provided in the middle of the pressure plates, through which the blade is disposed.

[0021] With the above technical solution, when the blade is drilling, it is subjected to the reverse pressure of the pressure plate, and the spring telescopic rod will retract, allowing the blade to extend a longer length.

[0022] This utility model has the following beneficial effects:

[0023] 1. Compared with the prior art, this tool device for machining deep holes in valve bodies, through the coordinated structure of gears, tool holders, gear rings, cooling tanks, through holes, liquid inlet pipes and three-way valves, can achieve internal cooling of the tool body, and through the coordinated structure of annular pipes, nozzles and connecting pipes, it can achieve uniform external spray cooling of the tool body. The internal and external coordination results in a better cooling effect.

[0024] 2. Compared with the prior art, the tooling device for machining deep holes in valve bodies, by setting up a mounting ring, a spring telescopic rod and a pressure plate structure with a central hole, can more easily disassemble the annular tube structure. It is convenient to remove and keep it for later use when only internal cooling is needed, or when the valve volume is small and there is no force point on the pressure plate. Attached Figure Description

[0025] Figure 1 This is a main structural diagram of a cutting tool device for machining deep holes in a valve body, as proposed in this utility model;

[0026] Figure 2 This is a structural diagram of one side of the drilling device of the tool device for machining deep holes in valve bodies proposed in this utility model;

[0027] Figure 3 This is a structural diagram of the other side of the drilling device of the tool device for machining deep holes in valve bodies proposed in this utility model.

[0028] Figure 4 This is a diagram showing the internal structure of the cutting tool body of a tool device for machining deep holes in a valve body, as proposed in this utility model.

[0029] Figure 5 This is a cross-sectional view of the mounting ring of a tool device for machining deep holes in a valve body, as proposed in this utility model.

[0030] Legend:

[0031] 1. Drilling device; 2. Motor; 3. Gear; 4. Tool holder; 5. Gear ring; 6. Mounting head; 7. Mounting hole; 8. Socket head bolt; 9. Cooling tank; 10. Tool body; 11. Through hole; 12. Liquid inlet pipe; 13. Three-way valve; 14. Clamping block; 15. Mounting ring; 16. Spring telescopic rod; 17. Pressure plate; 18. Annular tube; 19. Nozzle; 20. Connecting pipe. Detailed Implementation

[0032] Reference Figure 1-5This utility model provides a tooling device for machining deep holes in valve bodies: It includes a drilling device 1, a tool holder 4 rotatably connected inside the drilling device 1, a mounting head 6 movably connected to the lower end of the tool holder 4, and a tool body 10 fixedly connected to the lower end of the mounting head 6. A through hole 11 is provided inside the drilling device 1. Cooling grooves 9 are provided on both the mounting head 6 and the tool body 10. The through hole 11 communicates with the cooling grooves 9, allowing some coolant to enter the cooling grooves 9 through the through hole 11 and cool the tool body 10 from the inside. Clamping blocks 14 are fixedly connected to the outer walls on both sides of the drilling device 1, and mounting rings are rotatably sleeved on the outer walls of the clamping blocks 14. 15. Spring telescopic rods 16 are fixedly connected to both sides of the lower end face of the mounting ring 15. An annular tube 18 is fixedly connected to the outer wall of the spring telescopic rod 16. A nozzle 19 is fixedly connected to the inner wall of the annular tube 18. A connecting pipe 20 is fixedly connected to the outer wall of the annular tube 18. Coolant is supplied to the annular tube 18 through the connecting pipe 20 and then sprayed evenly onto the outer wall of the blade 10 through the nozzle 19 to cool it. A three-way valve 13 is fixedly connected to the other end of the connecting pipe 20. A liquid inlet pipe 12 is fixedly connected to one end of the three-way valve 13. The other end of the three-way valve 13 is fixedly connected to the through hole 11 through a pipe.

[0033] Through the above technical solution, the cooling tank 9 achieves internal cooling of the blade 10, and the nozzle 19 on the annular pipe 18 achieves external uniform spray cooling of the blade 10. The internal and external cooling work together to achieve a better cooling effect.

[0034] There are two sets of cooling grooves 9, and the two sets of cooling grooves 9 located inside the blade 10 are arranged in a double spiral shape to increase the cooling contact area and improve the cooling effect.

[0035] Mounting holes 7 are provided on one side of the outer wall of both the tool holder 4 and the mounting head 6. The mounting holes 7 are threaded with internal hex bolts 8. The mounting head 6 is fixedly installed by screwing the internal hex bolts 8 into the two mounting holes 7, which facilitates the disassembly and replacement of the tool body 10 as needed.

[0036] A motor 2 is fixedly connected to the upper end of the drilling device 1. The output end of the motor 2 passes through the drilling device 1 and is fixedly connected to a gear 3. A gear ring 5 is fixedly connected to the outer wall of the tool holder 4. The gear 3 is rotatably set inside the drilling device 1, and the gear 3 is meshed with the gear ring 5. The motor 2 drives the gear 3 to rotate, which in turn drives the gear ring 5 to rotate, thereby controlling the rotation of the tool holder 4.

[0037] Multiple nozzles 19 are provided, and the multiple nozzles 19 are evenly distributed on the inner wall of the annular tube 18 to ensure uniform spray cooling of the blade 10.

[0038] The lower ends of the two spring telescopic rods 16 are fixedly connected to pressure plates 17. A circular opening is provided in the middle of the pressure plate 17, through which the blade 10 passes. When the blade 10 drills, it is subjected to the reverse pressure of the pressure plate 17, and the spring telescopic rods 16 will retract, allowing the blade 10 to extend a longer length.

[0039] Working principle: In use, the inlet pipe 12 is connected to a coolant supply device, and then the coolant is supplied to the through hole 11 and the connecting pipe 20 through the three-way valve 13. The coolant entering the through hole 11 enters the cooling tank 9 through the center hole of the tool holder 4 and cools the inside of the tool body 10. The coolant entering the connecting pipe 20 flows into the annular pipe 18 and is finally sprayed out from multiple nozzles 19 arranged around the tool body 10 to uniformly cool the outside of the tool body 10. By coordinating the internal and external cooling, the tool body 10 can be cooled at the same time, which can achieve a better cooling effect.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A tool device for machining deep holes in valve bodies, comprising a drilling device (1), characterized in that: The drill device (1) is rotatably connected with a tool holder (4), the lower end of the tool holder (4) is movably connected with a mounting head (6), the lower end of the mounting head (6) is fixedly connected with a tool body (10), a through hole (11) is arranged in the drill device (1), cooling grooves (9) are arranged on the mounting head (6) and the tool body (10), the through hole (11) is in communication with the cooling grooves (9), clamping blocks (14) are fixedly connected on the outer walls of the drill device (1), mounting rings (15) are rotatably connected on the outer walls of the clamping blocks (14), spring telescopic rods (16) are fixedly connected on the lower end surfaces of the mounting rings (15), annular pipes (18) are fixedly connected on the outer walls of the spring telescopic rods (16), spray heads (19) are fixedly connected on the inner walls of the annular pipes (18), connecting pipes (20) are fixedly connected on the outer walls of the annular pipes (18), three-way valves (13) are fixedly connected on the other ends of the connecting pipes (20), liquid inlet pipes (12) are fixedly connected on one end of the three-way valves (13), the other end of the three-way valves (13) is fixedly connected with the through hole (11) through a pipeline.

2. A tool assembly for machining a deep hole in a valve body according to claim 1, characterized in that: The cooling grooves (9) are arranged in two groups, and the two groups of cooling grooves (9) arranged in the tool body (10) are arranged in double helix shape.

3. The tool assembly of claim 1 wherein: Mounting holes (7) are arranged on the outer walls of the tool holder (4) and the mounting head (6), and hexagonal bolts (8) are threadedly connected in the mounting holes (7).

4. The tool assembly of claim 1 wherein: A motor (2) is fixedly connected on the upper end of the drill device (1), the output end of the motor (2) penetrates the drill device (1) and is fixedly connected with a gear (3), a gear ring (5) is fixedly connected on the outer wall of the tool holder (4), the gear (3) is rotatably arranged in the drill device (1), and the gear (3) is in meshing arrangement with the gear ring (5).

5. The tool assembly of claim 1 wherein: A plurality of spray heads (19) are arranged on the inner wall of the annular pipe (18).

6. The tool assembly of claim 1 wherein: The lower ends of the two spring telescopic rods (16) are fixedly connected with a pressing plate (17), a circular opening is arranged in the middle of the pressing plate (17), and the tool body (10) penetrates the circular opening.

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