Cooling system for inner hole grooving

Abstract

The utility model provides a cooling system for inner hole grooving, which comprises a shell assembly and an internal driving assembly, channels for cooling liquid supply are arranged in the shell assembly and the internal driving assembly, a cooling liquid spray head is fixedly arranged at the end part of the shell assembly, and the cooling liquid spray head is over against a grooving tool for cutting at the end part of the shell assembly; the integrated cooling system not only solves the problem of insufficient supply of cooling liquid in inner hole slotting machining, but also improves the machining quality and the production efficiency from multiple aspects, meanwhile, reduces the maintenance cost, and provides an efficient solution for users.

Description

Technical Field

[0001] This utility model relates to the field of machining cooling, specifically to a cooling system for internal hole grooving. Background Technology

[0002] When grooving the inner hole of a workpiece, the limited space within the hole often makes it difficult to accurately spray coolant onto the cutting area. This results in poor cooling and incomplete removal of residue, thus affecting machining quality and tool life. To solve this problem, a carefully designed cooling system is needed to improve the efficiency and accuracy of coolant supply.

[0003] Space Constraints: During internal grooving, the small diameter of the hole severely limits the available operating space. This constraint makes it difficult for traditional external cooling methods to effectively deliver coolant directly to the cutting area. Insufficient Cooling: Because the coolant cannot accurately reach the cutting point, the temperature in the cutting area becomes excessively high, increasing the risk of tool wear and potentially leading to a decrease in workpiece surface quality. Difficulty in Residue Removal: Metal chips and other residues generated during cutting are difficult to remove in a timely manner, easily causing secondary cutting or damaging the workpiece surface. Reduced Machining Accuracy: The combined effect of the above factors may lead to a decrease in machining accuracy, affecting the quality of the final product. Utility Model Content

[0004] The main purpose of this invention is to provide a cooling system for internal hole grooving, thereby solving the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: it includes a shell assembly and an internal drive assembly, the shell assembly and the internal drive assembly are provided with channels for supplying coolant, and a coolant nozzle is fixed at the end of the shell assembly, the coolant nozzle is directly facing the grooving tool for cutting at the end of the shell assembly.

[0006] The outer casing assembly includes a base cylinder, an extension cylinder, a connecting cylinder, and a slotted fixing cylinder connected in sequence. The slotted fixing cylinder has a second through hole on one side. The coolant nozzle is fixed on the slotted fixing cylinder and communicates with the second through hole. The connecting cylinder has a first through hole on one side of its end. The two ends of the first through hole are respectively connected to the second through hole and the interior of the connecting cylinder.

[0007] The internal drive assembly includes a connecting rod, a transmission rod, and a drive rod connected in sequence. The transmission rod is hollow inside. The end of the connecting rod and the drive rod connected to the connecting rod has a blind hole. The blind hole at the end of the drive rod has a third through hole inside, which connects the interior of the connecting cylinder and the blind hole. A high-pressure water pipe connector is provided on one side of the connecting rod, and the high-pressure water pipe connector is connected to the blind hole.

[0008] Preferably, the drive rod and transmission rod slide within the connecting cylinder, and both ends of the connecting cylinder are sealed against the drive rod and transmission rod by a sealing assembly.

[0009] Preferably, a through groove is provided on one side of the bottom cylinder, and the high-pressure water pipe joint slides within the through groove.

[0010] Preferably, the connecting cylinder and the grooving fixing cylinder are provided with multiple corresponding connecting holes on their outer sides, and bolts are fixed in the connecting holes to connect and fix the connecting cylinder and the grooving fixing cylinder.

[0011] Preferably, a sealing ring is provided between the second through hole and the first through hole, and the sealing ring is pressed and sealed between the end faces of the connecting cylinder and the grooved fixing cylinder.

[0012] This utility model provides a cooling system for internal hole grooving, with the following advantages:

[0013] 1. By designing a coolant channel that runs throughout the entire system, coolant can be directly sprayed onto the cutting area, effectively reducing the temperature during the cutting process. Precise coolant supply reduces tool wear caused by overheating, extending tool life.

[0014] 2. Efficient use of coolant helps maintain the optimal operating temperature of the workpiece and tool, thereby reducing thermal deformation and improving machining accuracy. Precise coolant spraying helps to flush away metal chips and other residues generated during cutting, avoiding secondary cutting or surface damage, and further improving the quality of the machined surface.

[0015] 3. The sliding seal mechanism and high-pressure water pipe joint design ensure a continuous supply of coolant even when the internal drive components are moving, improving system stability and reliability. The bolted fixing and sealing ring compression design between the connecting cylinder and the grooving fixing cylinder ensures excellent sealing performance, prevents coolant leakage, and protects other machine tool components from damage. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a front view of the overall structure of this utility model;

[0018] Figure 2 This is a front sectional view of the overall structure of this utility model;

[0019] Figure 3 This is a utility model Figure 2 Sectional view of AA;

[0020] In the figure: bottom cylinder 1; through groove 101; extension cylinder 2; connecting cylinder 3; first through hole 301; grooving fixing cylinder 4; second through hole 401; coolant nozzle 5; grooving tool 6; sealing assembly 7; drive rod 8; third through hole 801; transmission rod 9; connecting rod 10; high pressure water pipe joint 11; bolt 12. Detailed Implementation

[0021] like Figures 1-3 As shown, the cooling system for internal hole grooving includes a housing assembly and an internal drive assembly. The housing assembly and the internal drive assembly are provided with channels for supplying coolant. A coolant nozzle 5 is fixed at the end of the housing assembly, and the coolant nozzle 5 is directly facing the grooving tool 6 used for cutting at the end of the housing assembly.

[0022] The outer casing assembly includes a bottom cylinder 1, an extension cylinder 2, a connecting cylinder 3, and a slotted fixing cylinder 4 connected in sequence. The slotted fixing cylinder 4 has a second through hole 401 on one side. The coolant nozzle 5 is fixed on the slotted fixing cylinder 4 and communicates with the second through hole 401. The connecting cylinder 3 has a first through hole 301 on one side of its end. The two ends of the first through hole 301 are respectively connected to the second through hole 401 and the interior of the connecting cylinder 3.

[0023] The internal drive assembly includes a connecting rod 10, a transmission rod 9, and a drive rod 8 connected in sequence. The transmission rod 9 is hollow inside. The connecting rod 10 and the drive rod 8 are provided with blind holes at the ends connected to the connecting rod 10. The drive rod 8 is provided with a third through hole 801 inside the blind hole. The third through hole 801 connects the inside of the connecting cylinder 3 and the blind hole. A high-pressure water pipe connector 11 is provided on one side of the connecting rod 10. The high-pressure water pipe connector 11 is connected to the blind hole.

[0024] The internal drive assembly moves within the housing assembly, thereby driving the grooving tool 6 at the end of the housing assembly to perform feed cutting and grooving. During the cutting process, the coolant nozzle 5 sprays coolant onto the grooving tool 6 to cool it down and flush away residue. The coolant is introduced from the high-pressure water pipe joint 11 and sprayed out from the coolant nozzle 5 through the coolant supply channel connected by the connecting rod 10, transmission rod 9, drive rod 8, connecting cylinder 3, first through hole 301 and second through hole 401.

[0025] The outer casing assembly consists of a base cylinder 1, an extension cylinder 2, a connecting cylinder 3, and a grooving fixing cylinder 4. These parts are interconnected to form a channel network, allowing the coolant to flow smoothly from the high-pressure water pipe connector 11 to the final spray point, the coolant nozzle 5. The second through hole 401 on the grooving fixing cylinder 4 is connected to the coolant nozzle, ensuring that the coolant is accurately sprayed onto the grooving tool 6.

[0026] The internal drive assembly includes a connecting rod 10, a transmission rod 9, and a drive rod 8, which work together to control the position adjustment of the grooving tool 6. The transmission rod 9 is hollow inside, and together with the blind holes at both ends of the connecting rod 10 and the drive rod 8, and the third through hole 801 in the blind hole at the end of the drive rod 8, a coolant delivery path is formed throughout the entire system.

[0027] Coolant supply path: The coolant first enters the system through the high-pressure water pipe joint 11, then passes through the connecting rod 10, the transmission rod 9, and the drive rod 8 in sequence, and reaches the second through hole 401 of the grooving fixing cylinder 4 through the first through hole 301 of the connecting cylinder 3. Finally, it is sprayed out by the coolant nozzle 5 and acts directly on the grooving tool 6 that is working.

[0028] Preferably, the drive rod 8 and the transmission rod 9 slide within the connecting cylinder 3, and both ends of the connecting cylinder 3 are sealed against the drive rod 8 and the transmission rod 9 by the sealing assembly 7.

[0029] The internal cavity of the connecting cylinder 3 serves as a coolant passage between the outer shell assembly and the internal drive assembly. The sealing assembly 7 ensures the sliding seal of the drive rod 8 and the transmission rod 9 within the connecting cylinder 3, preventing coolant leakage.

[0030] The drive rod 8 and transmission rod 9 are located within the connecting cylinder 3 and can slide freely inside it. This design allows the internal drive assembly to move relative to the housing assembly, thereby enabling the feeding action of the grooving tool 6. To ensure good sealing performance while the drive rod 8 and transmission rod 9 slide within the connecting cylinder 3, sealing assemblies 7 are used at both ends. These sealing assemblies are tightly fitted to the drive rod 8 and transmission rod 9, ensuring that they effectively prevent coolant leakage from the connecting cylinder 3 in any position.

[0031] Preferably, a through groove 101 is provided on one side of the bottom cylinder 1, and the high-pressure water pipe connector 11 slides within the through groove 101.

[0032] The high-pressure water pipe connector 11 is connected to the external coolant tank, pump and water pipe through the through groove 101.

[0033] The through groove 101 on the bottom cylinder 1 allows the high-pressure water pipe connector 11 to slide freely within a certain range. This design ensures that when the internal drive assembly moves back and forth, the high-pressure water pipe connector can move accordingly without being pulled or broken. The high-pressure water pipe connector is located within the through groove 101, through which it connects to the external coolant tank, pump, and delivery pipeline. This allows for a continuous supply of coolant to the cutting area.

[0034] Preferably, the connecting cylinder 3 and the grooving fixing cylinder 4 are provided with multiple corresponding connecting holes on their outer sides, and bolts 12 are fixed in the connecting holes to connect and fix the connecting cylinder 3 and the grooving fixing cylinder 4.

[0035] A sealing ring is provided between the second through hole 401 and the first through hole 301. The sealing ring is pressed and sealed between the end faces of the connecting cylinder 3 and the grooved fixing cylinder 4.

[0036] The end of the connecting cylinder 3 abuts against the inside of the grooving fixing cylinder 4, with their end faces abutting against each other. The second through hole 401 and the first through hole 301 are connected at their end faces. When the connecting cylinder 3 and the grooving fixing cylinder 4 are locked together by the bolt 12, the sealing ring is pressed to achieve a seal.

[0037] Connection holes and bolt fixing:

[0038] The outer sides of the connecting cylinder 3 and the slotted fixing cylinder 4 are provided with multiple corresponding connecting holes.

[0039] Bolts 12 are installed in these connection holes, and the connecting sleeve 3 and the slotted fixing sleeve 4 are secured by tightening the bolts. This design ensures a secure connection between the two parts while allowing disassembly for maintenance or replacement of components.

[0040] A sealing ring is provided between the second through hole 401 and the first through hole 301. This sealing ring is located between the end faces of the connecting cylinder 3 and the grooving fixing cylinder 4. When the connecting cylinder 3 and the grooving fixing cylinder 4 are tightened by the bolts 12, the sealing ring is compressed, thereby forming a reliable sealing interface between the two components and preventing coolant leakage from the interface.

[0041] The end of the connecting cylinder 3 directly abuts against the inside of the slotted fixing cylinder 4, with their end faces in contact. The second through hole 401 and the first through hole 301 are precisely aligned at their end faces, ensuring that the coolant can flow unimpeded through the entire channel. After being tightened by the bolts 12, not only is the mechanical connection strength strengthened, but the sealing ring is also subjected to sufficient pressure to fit tightly against the end face, ensuring a good sealing effect.

[0042] The above embodiments are merely preferred technical solutions of this utility model and should not be considered as limitations on this utility model. The protection scope of this utility model should be the technical solution described in the claims, including equivalent substitutions of the technical features described in the claims. That is, equivalent substitutions and improvements within this scope are also within the protection scope of this utility model.

Claims

1. A cooling system for internal grooving, characterized in that: It includes a housing assembly and an internal drive assembly. The housing assembly and the internal drive assembly are provided with channels for supplying coolant. A coolant nozzle (5) is fixed at the end of the housing assembly. The coolant nozzle (5) is directly opposite a grooving tool (6) for cutting at the end of the housing assembly. The outer casing assembly includes a bottom cylinder (1), an extension cylinder (2), a connecting cylinder (3), and a slotted fixing cylinder (4) connected in sequence. The slotted fixing cylinder (4) has a second through hole (401) on one side. The coolant nozzle (5) is fixed on the slotted fixing cylinder (4) and communicates with the second through hole (401). The connecting cylinder (3) has a first through hole (301) on one side of its end. The two ends of the first through hole (301) are respectively connected to the second through hole (401) and the interior of the connecting cylinder (3). The internal drive assembly includes a connecting rod (10), a transmission rod (9), and a drive rod (8) connected in sequence. The transmission rod (9) is hollow inside. The connecting rod (10) and the drive rod (8) are provided with blind holes at the ends connected to the connecting rod (10). The blind hole at the end of the drive rod (8) is provided with a third through hole (801). The third through hole (801) connects the inside of the connecting cylinder (3) and the blind hole. A high-pressure water pipe connector (11) is provided on one side of the connecting rod (10). The high-pressure water pipe connector (11) is connected to the blind hole.

2. The cooling system for internal hole grooving according to claim 1, characterized in that: The drive rod (8) and transmission rod (9) slide inside the connecting cylinder (3), and the two ends of the connecting cylinder (3) are sealed against the drive rod (8) and transmission rod (9) by the sealing assembly (7).

3. The cooling system for internal hole grooving according to claim 1, characterized in that: A through groove (101) is provided on one side of the bottom cylinder (1), and the high-pressure water pipe joint (11) slides in the through groove (101).

4. The cooling system for internal hole grooving according to claim 1, characterized in that: The connecting cylinder (3) and the grooving fixing cylinder (4) are provided with multiple corresponding connecting holes on their outer sides, and bolts (12) are fixed in the connecting holes to connect and fix the connecting cylinder (3) and the grooving fixing cylinder (4).

5. The cooling system for internal hole grooving according to claim 1, characterized in that: A sealing ring is provided between the second through hole (401) and the first through hole (301), and the sealing ring is pressed and sealed between the end faces of the connecting cylinder (3) and the grooved fixing cylinder (4).

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