Machining tool extender structure

Abstract

The utility model relates to a machining cutter extender structure which comprises a cutter extender body, a standard cutter handle is inserted into the lower end of the cutter extender body, a tensioning screw is inserted into the upper end of the cutter extender body from top to bottom, and the lower end of the tensioning screw is connected with the standard cutter handle in a screwed mode. The upper end of the tensioning screw rod is connected with the upper portion of the cutter extender body in a limiting mode, a cooling liquid inflow channel is arranged on the inner axis of the tensioning screw rod, a cooling water pipe is connected to an upper end opening of the cooling liquid inflow channel, and a lower end opening of the cooling liquid inflow channel is communicated with an outlet channel arranged in the standard cutter handle. The cutter extender disclosed by the utility model is convenient to mount and dismount, and a cooling liquid supply application is designed, so that the cutter can be kept to be cooled in a machining process, and the service life of the cutter is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts processing technology, and in particular to a machining tool extension structure. Background Technology

[0002] Tool extenders are commonly used tools in machining, primarily to increase the effective working length of cutting tools to adapt to deep hole machining or other machining scenarios requiring longer working lengths. This reduces reliance on long tools, decreases the number of tools purchased, lowers machining costs, and improves production efficiency.

[0003] This tool is designed with machining accuracy, rigidity, and stability in mind to ensure machining quality and efficiency. Tool extenders are widely used in various machining fields, including lathes, drilling machines, and milling machines. They are not only suitable for metalworking but also widely used in machining centers. Connected to the spindle via a clamping device, they can hold both tools and workpieces, serving a dual function of extension and clamping.

[0004] Existing tool extenders have complex structures, numerous parts, and are cumbersome to disassemble and assemble, requiring many tools. Furthermore, they lack a coolant supply, resulting in a short service life. Summary of the Invention

[0005] The technical problem to be solved by this utility model is to provide a machining tool extender structure. The tool extender is easy to install and disassemble, and is also designed with a coolant supply, which helps to keep the tool cool during the machining process, thereby extending the tool's service life.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: a machining tool extender structure is provided, including a tool extender body, a standard tool holder is inserted into the lower end of the tool extender body, a tensioning screw is inserted from top to bottom into the upper end of the tool extender body, the lower end of the tensioning screw is screwed to the standard tool holder, the upper end of the tensioning screw is limitedly connected to the upper part of the tool extender body, a coolant inflow channel is provided on the internal axis of the tensioning screw, a cooling water pipe is connected to the upper port of the coolant inflow channel, and the lower port of the coolant inflow channel is connected to the outlet channel provided inside the standard tool holder.

[0007] As a supplement to the technical solution described in this utility model, the lower part of the tool extender body has a lower chamber, and multiple positioning pins are screwed onto the outer side wall of the lower part of the tool extender body. One end of the standard tool holder is inserted into the lower chamber, and one end of the positioning pin is inserted laterally into the standard tool holder.

[0008] As a supplement to the technical solution described in this utility model, a guide sleeve is embedded in the top of the lower chamber, and the guide sleeve is sleeved on the outside of the tensioning screw.

[0009] As a supplement to the technical solution described in this utility model, a threaded hole is provided at the top of the lower chamber, and an external thread that mates with the threaded hole is provided on the outer side of the guide sleeve.

[0010] As a supplement to the technical solution described in this utility model, a lower sealing groove is provided at the lower end of the tensioning screw, and a sealing O-ring is installed in the lower sealing groove. The sealing O-ring is sleeved on the lower port of the coolant inflow channel.

[0011] As a supplement to the technical solution described in this utility model, the tool extender body has a through hole for the tensioning screw to pass through, and a groove is provided at the upper end of the through hole. A step is arranged at the upper end of the tensioning screw, and the step is engaged in the groove.

[0012] As a supplement to the technical solution described in this utility model, an annular groove is provided in the middle of the step, and an inner hole sealing ring is provided between the annular groove and the inner wall of the groove.

[0013] As a supplement to the technical solution described in this utility model, the upper end of the tensioning screw is provided with a connecting hole above the coolant inflow channel, and the connecting hole is connected to the cooling water pipe by a thread.

[0014] As a supplement to the technical solution described in this utility model, an internal hexagonal wrench slot is provided at the bottom of the connection hole at the upper port of the coolant inflow channel.

[0015] As a supplement to the technical solution described in this utility model, an upper sealing groove is provided at the bottom of the cooling water pipe, and an end face sealing ring is installed in the upper sealing groove. The end face sealing ring is sleeved on the upper port of the coolant inflow channel.

[0016] Beneficial Effects: This utility model relates to a machining tool extender structure. By providing additional length, the tool can penetrate deeper into the workpiece for machining, thereby increasing machining depth and improving machining efficiency. The tool extender is also designed with a coolant supply, which helps to keep the tool cool during machining, thus extending its service life. In terms of design, the tool extender adopts a novel and reasonable structural design, facilitating installation and disassembly. This design not only improves work efficiency but also reduces operational difficulty. In summary, the tool extender, through its unique design, brings great convenience to the manufacturing industry, improves machining efficiency and quality, and significantly reduces machining costs. Attached Figure Description

[0017] Figure 1 This is a structural cross-sectional view of the present invention;

[0018] Figure 2 This is a schematic diagram of the tensioning screw described in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the guide bushing described in this utility model;

[0020] Figure 4 This is a cross-sectional view of the positioning pin described in this utility model;

[0021] Figure 5 This is a cross-sectional view of the body of the tool extender described in this utility model.

[0022] Illustration: 1. Tool extender body, 2. Inner hole sealing ring, 3. Cooling water pipe, 4. Tensioning screw, 5. Guide bushing, 6. Locating pin, 7. Sealing O-ring, 8. Standard tool holder, 9. End face sealing ring, 10. Lower chamber, 11. Upper chamber, 12. Socket headstock hole, 13. External thread, 14. Socket headstock wrench slot, 15. Annular groove, 16. Coolant inflow channel, 17. Lower sealing groove, 18. Outlet channel, 19. Step, 20. Connecting hole, 21. Through hole, 22. Threaded hole, 23. Groove. Detailed Implementation

[0023] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0024] The embodiments of this utility model relate to a machining tool extension structure, such as... Figure 1-5 As shown, the tool extender includes a tool extender body 1. A standard tool holder 8 is inserted into the lower end of the tool extender body 1. A tensioning screw 4 is inserted into the upper end of the tool extender body 1 from top to bottom. The lower end of the tensioning screw 4 is screwed to the standard tool holder 8. The upper end of the tensioning screw 4 is connected to the upper limit connection of the tool extender body 1. A coolant inflow channel 16 is provided on the internal axis of the tensioning screw 4. A cooling water pipe 3 is connected to the upper port of the coolant inflow channel 16. The lower port of the coolant inflow channel 16 is connected to the outlet channel 18 provided inside the standard tool holder 8.

[0025] The tool extender body 1 has a lower chamber 10 at its lower part. Multiple positioning pins 6 are screwed onto the outer side wall of the lower part of the tool extender body 1. One end of the standard tool holder 8 is inserted into the lower chamber 10, and one end of the positioning pin 6 is inserted laterally into the standard tool holder 8. An internal hexagonal hole 12 is opened on the end face of the other end of the positioning pin 6.

[0026] The standard tool holder 8 has an upper chamber 11 at its upper part. The upper chamber 11 can effectively reduce the weight of the standard tool holder 8 and the amount of material used, thus saving costs.

[0027] Preferably, a guide sleeve 5 is embedded in the top of the lower chamber 10, and the guide sleeve 5 is fitted over the tensioning screw 4; a threaded hole 22 is opened in the top of the lower chamber 10, and the guide sleeve 5 is screwed into the threaded hole 22 inside the tool extender body 1 through the external thread 13, and the positioning pin 6 on the side is also screwed into the tool extender body 1 through the thread, so as to realize the tool's rapid positioning and guidance.

[0028] The lower end of the tensioning screw 4 is provided with a lower sealing groove 17, and a sealing O-ring 7 is installed in the lower sealing groove 17. The sealing O-ring 7 is sleeved on the lower port of the coolant inflow channel 16.

[0029] The tool extender body 1 has a through hole 21 for the tensioning screw 4 to pass through. A groove 23 is provided at the upper end of the through hole 21. A step 19 is arranged at the upper end of the tensioning screw 4, and the step 19 is inserted into the groove 23.

[0030] An annular groove 15 is provided in the middle of the step 19, and an inner hole sealing ring 2 is provided between the annular groove 15 and the inner wall of the groove 23.

[0031] The upper end of the tensioning screw 4 is provided with a connection hole 20 above the coolant inflow channel 16, and the connection hole 20 is threadedly connected to the cooling water pipe 3.

[0032] Preferably, the bottom of the connection hole 20 is provided with an internal hex wrench slot 14 at the upper port of the coolant inflow channel 16. The tensioning screw 4 is tightened through the internal hex wrench slot 14. The lower end of the tightening screw 4 passes through the guide sleeve 5. The thread at the bottom of the tightening screw 4 is connected to the standard tool holder 8, so as to realize quick tool replacement and locking.

[0033] The bottom of the cooling water pipe 3 is provided with an upper sealing groove, and an end face sealing ring 9 is installed in the upper sealing groove. The end face sealing ring 9 is sleeved on the upper port of the coolant inflow channel 16.

[0034] During assembly, the tool extender body 1, cooling water pipe 3, tensioning screw 4, locating pin 6, and standard tool holder 8 are assembled sequentially. The lower end of the tensioning screw 4 passes through the guide sleeve 5 and is threadedly connected to the standard tool holder 8. The locating pin 6 is screwed into the side of the tool extender body 1, and one end of the locating pin 6 is inserted laterally into the standard tool holder 8, realizing quick assembly between the tool extender body 1 and the standard tool holder 8. The cooling water pipe 3 is threadedly connected to the upper end of the tensioning screw 4. The cooling water pipe 3 and the tensioning screw 4 are sealed by the end face sealing ring 9. The upper part of the tensioning screw 4 is sealed with the groove 23 by the inner hole sealing ring 2. The lower end of the tensioning screw 4 is sealed with the standard tool holder 8 by the sealing O-ring 7 to prevent cutting fluid from entering the lower chamber 10 and the upper chamber 11, realizing quick tool extension. The coolant achieves a rapid cooling effect on the tool through the coolant inflow channel 16 and the outlet channel 1.

[0035] The tool extender described in this utility model is applicable to machining equipment with different machining strokes and can be used with various types of tools. It has good versatility, improves the efficiency of use, and provides an effective means of use in the product manufacturing process.

[0036] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0037] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0038] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0039] The above provides a detailed description of a machining tool extender structure provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A machining tool extender structure comprising a tool extender body (1), characterized in that: The lower end of the tool extender body (1) is connected to a standard tool holder (8), and the upper end of the tool extender body (1) is connected to a tensioning screw (4) from top to bottom. The lower end of the tensioning screw (4) is screwed to the standard tool holder (8), and the upper end of the tensioning screw (4) is connected to the upper limit of the tool extender body (1). The internal axis of the tensioning screw (4) is provided with a coolant inflow channel (16), and a cooling water pipe (3) is connected to the upper port of the coolant inflow channel (16). The lower port of the coolant inflow channel (16) is connected to the outlet channel (18) provided inside the standard tool holder (8).

2. A machine tool extender structure according to claim 1, characterised in that: The tool extender body (1) has a lower chamber (10) at its lower part. Multiple positioning pins (6) are screwed onto the outer side wall of the lower part of the tool extender body (1). One end of the standard tool holder (8) is inserted into the lower chamber (10), and one end of the positioning pin (6) is inserted laterally into the standard tool holder (8).

3. A machine tool extender structure according to claim 2, characterised in that: The lower chamber (10) is fitted with a guide sleeve (5) at the top, which is fitted over the tensioning screw (4).

4. A machine tool extender structure according to claim 3, characterised in that: The lower chamber (10) has a threaded hole (22) at the top, and the guide sleeve (5) has an external thread (13) that mates with the threaded hole (22) on the outside.

5. A machine tool extender structure according to claim 1, wherein: The lower end of the tensioning screw (4) is provided with a lower sealing groove (17), and a sealing O-ring (7) is installed in the lower sealing groove (17). The sealing O-ring (7) is sleeved on the lower port of the coolant inflow channel (16).

6. A machine tool extender structure according to claim 1, wherein: The tool extender body (1) has a through hole (21) for the tensioning screw (4) to pass through. A groove (23) is provided at the upper end of the through hole (21). A step (19) is arranged at the upper end of the tensioning screw (4), and the step (19) is inserted into the groove (23).

7. A machine tool extender structure according to claim 6, characterised in that: The step (19) has an annular groove (15) in the middle, and an inner hole sealing ring (2) is provided between the annular groove (15) and the inner wall of the groove (23).

8. A machine tool extender structure according to claim 1, wherein: The upper end of the tensioning screw (4) is provided with a connection hole (20) above the coolant inflow channel (16), and the connection hole (20) is threadedly connected to the cooling water pipe (3).

9. A machine tool extender structure according to claim 8, characterised in that: The bottom of the connection hole (20) is provided with an internal hex wrench slot (14) at the upper port of the coolant inflow channel (16).

10. A machine tool extender structure according to claim 1, characterized in that: The cooling water pipe (3) has an upper sealing groove at the bottom, and an end face sealing ring (9) is installed in the upper sealing groove. The end face sealing ring (9) is fitted on the upper port of the coolant inflow channel (16).

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