Universal milling head for deep hole machining

Abstract

The utility model relates to the technical field of deep hole machining, and discloses a universal milling head for deep hole machining, which comprises a machine body, a turntable, a shell and an extension cylinder, the turntable is mounted at the bottom end of the machine body, the shell is fixed on a rotating shaft of the turntable, and the extension cylinder is clamped on the inner wall of the shell in a sliding manner; and the extension mechanism is arranged in the shell, the extension mechanism comprises a sliding groove, the sliding groove is formed in the surface of an extension cylinder, the inner wall of the sliding groove is slidably sleeved with a sliding ring, and the surface of the sliding ring is fixedly connected with a fixing block. The fixing block slides on the surface of the fixing frame, so that the sliding ring is driven to be pushed front and back, the sliding ring is clamped to the inner wall of the sliding groove in a sliding mode, then the extending cylinder slides in the inner wall of the shell, the use length of a milling cutter is increased in a disguised mode under the condition that the cutter clamped in the extending cylinder does not use the ultra-long milling cutter, and the feasibility of deep hole machining is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of deep hole processing, and more specifically to a universal milling head for deep hole processing. Background Art

[0002] Deep hole, also known as deep hole drilling, is a common hole processing form in mechanical processing, that is, a gun drill, jet drill, or single tube drill (BTA) is used to drill large aspect ratio holes on a special deep hole machine or equipment with deep hole function. However, no matter what type of deep hole drilling tool is used, the guidance of the deep hole and the chip removal of the deep hole are the key to deep hole processing, especially the guidance of the deep hole directly affects the straightness of the deep hole processing hole and the surface accuracy of the hole. Engineering and technical personnel engaged in deep hole processing know that there are two main process schemes for the guidance of deep hole processing, namely, guide device guidance and guide hole guidance. The guide device guidance scheme is to use the guide device of the deep hole machine tool or the additional guide device to guide the deep hole drill for deep hole processing. It is more suitable for deep hole processing on the plane of mechanical parts, and it is more convenient to achieve the fitting of the guide element and the processing surface during deep hole processing. Guide hole guidance scheme.

[0003] As disclosed in the patent number CN216461971U, a guide device for deep hole processing on an inner cylindrical surface, the guide device for deep hole processing on an inner cylindrical surface can quickly fix and separate the base, the guide body and the bushing through the arrangement of cylindrical locating pins, seat body screws and fixing screws, so as to facilitate the assembly and use of the device. In the prior art, there is a problem that the cylindrical locating pins, seat body screws and fixing screws need to be arranged before processing, and the base, the guide body and the bushing can be quickly fixed and separated, which requires a long preparation time and requires skilled mastery of the loading and unloading procedures to complete. In order to solve such problems, the present application proposes a universal milling head with a new structure for deep hole processing. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a universal milling head for deep hole processing to solve the problems existing in the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a universal milling head for deep hole processing, comprising a machine body, a turntable, a shell and an extension cylinder, wherein the turntable is mounted on the bottom end of the machine body, the shell is fixed to the rotating shaft of the turntable, and the extension cylinder is slidably connected to the inner wall of the shell;

[0006] An extension mechanism is arranged inside the housing, and includes a slide groove, which is opened on the surface of the extension tube, and a sliding ring is provided on the inner wall sliding sleeve of the slide groove, and a fixed block is fixedly connected to the surface of the slide ring; wherein,

[0007] The driving mechanism is arranged inside the shell.

[0008] Furthermore, a fixing frame is fixedly connected to the inner wall of the shell, a motor is installed on the side end of the fixing frame, and an output shaft of the motor rotates through the side end of the fixing frame and extends inwardly.

[0009] Furthermore, the output shaft of the motor is fixedly connected with a screw rod, and the screw rod is rotatably connected to the inner wall of the shell, the fixing block is slidably connected to the surface of the fixing frame, and the screw rod thread penetrates the side end of the fixing block.

[0010] Furthermore, the driving mechanism includes a driving shaft, the driving shaft is fixedly connected to the output shaft of the turntable, and the bottom end of the driving shaft is fixedly connected to a first helical gear.

[0011] Furthermore, a fixing rod is fixedly connected to the inner wall of the shell, and a side end of the fixing rod is rotatably connected to a second helical gear, and the second helical gear is meshingly connected to the first helical gear.

[0012] Furthermore, the side end extension shaft of the second helical gear is fixedly connected to the first gear, the interior of the extension tube is fixedly connected to the second gear, and the second gear is meshingly connected to the first gear.

[0013] Technical effects and advantages of the utility model:

[0014] 1. The utility model is provided with an extension mechanism. For deep hole processing, the price difference of milling cutters with the same diameter but different lengths is quite large. The fixed block is used to slide on the surface of the fixed frame, thereby driving the slip ring to move forward and backward. The slip ring is slidably engaged with the inner wall of the slide groove, and then the extension tube slides in the inner wall of the shell, so that the tool clamped in the extension tube can lengthen the use length of the milling cutter in disguised form without using an extra-long milling cutter, thereby increasing the feasibility of deep hole processing.

[0015] 2. The utility model is provided with a driving mechanism, in which the second gear fixedly connected to the inner wall of the extension tube meshes with the first gear, so that after the equipment stops running, the extension tube can be stably extended or retracted along the inner wall of the shell under the push of the fixed block without being separated from the first gear, thereby achieving the ductility and safety of the extension tube for quick adjustment during deep hole processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the main structure of the utility model.

[0017] Figure 2 It is a cross-sectional view of the shell of the utility model.

[0018] Figure 3It is a schematic diagram of the driving mechanism of the utility model.

[0019] Figure 4 It is a schematic diagram of the extension mechanism of the utility model.

[0020] The accompanying drawings are marked as follows: 1. body; 2. turntable; 3. shell; 4. drive shaft; 5. first helical gear; 6. fixing rod; 7. second helical gear; 8. first gear; 9. extension tube; 10. second gear; 11. slide groove; 12. slip ring; 13. motor; 14. fixing frame; 15. screw; 16. fixing block. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. In addition, the forms of the various structures recorded in the following embodiments are merely illustrative, and the present invention is not limited to the various structures recorded in the following embodiments. All other implementations obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the present invention.

[0022] Reference Figure 1-Figure 4 The utility model provides a universal milling head for deep hole processing, including a body 1, a turntable 2, a shell 3 and an extension tube 9, the turntable 2 is installed at the bottom end of the body 1, the shell 3 is fixed to the rotating shaft of the turntable 2, and the extension tube 9 is slidably connected to the inner wall of the shell 3;

[0023] The extension mechanism is arranged inside the housing 3, and includes a slide groove 11, which is opened on the surface of the extension tube 9, and the inner wall of the slide groove 11 is provided with a sliding ring 12, and the surface of the sliding ring 12 is fixedly connected with a fixing block 16; wherein,

[0024] A driving mechanism, which is arranged inside the housing 3;

[0025] Furthermore, the slip ring 12 only restricts the extension tube 9 and does not affect the rotation of the extension tube 9 itself. When the slip ring 12 moves forward and backward, it can drive the extension tube 9 to move forward and backward.

[0026] The inner wall of the housing 3 is fixedly connected with a fixing frame 14 , a motor 13 is installed at a side end of the fixing frame 14 , and an output shaft of the motor 13 rotates through the side end of the fixing frame 14 and extends inward.

[0027] Furthermore, the motor 13 is concealed and installed inside the housing 3, so that the motor 13 is not exposed to the outside and thus the motor 13 is not affected by moisture, which may affect the service life of the motor 13.

[0028] The output shaft of the motor 13 is fixedly connected with a screw 15 , and the screw 15 is rotatably connected to the inner wall of the housing 3 , the fixing block 16 is slidably connected to the surface of the fixing frame 14 , and the screw 15 threadably penetrates the side end of the fixing block 16 .

[0029] Furthermore, the output shaft of the motor 13 drives the screw 15 to rotate, and the screw 15 drives the fixed block 16 threaded therethrough to rotate, and the fixed block 16 is limited by the surface of the fixed frame 14, so it can only slide back and forth along the fixed frame 14, thereby driving the slip ring 12 to slide back and forth.

[0030] The driving mechanism includes a driving shaft 4 , which is fixedly connected to the output shaft of the turntable 2 , and a first helical gear 5 is fixedly connected to the bottom end of the driving shaft 4 .

[0031] Furthermore, the first helical gear 5 is driven to rotate by the rotation of the driving shaft 4 .

[0032] The inner wall of the housing 3 is fixedly connected with a fixing rod 6 , and the side end of the fixing rod 6 is rotatably connected with a second helical gear 7 , and the second helical gear 7 is meshedly connected with the first helical gear 5 .

[0033] Furthermore, the fixing rod 6 is used to fix the second helical gear 7 .

[0034] The side end extension shaft of the second helical gear 7 is fixedly connected with the first gear 8 , the interior of the extension tube 9 is fixedly connected with the second gear 10 , and the second gear 10 is meshingly connected with the first gear 8 .

[0035] Furthermore, the first helical gear 5 meshes with the second helical gear 7, the second helical gear 7 drives the first gear 8 to rotate, the first gear 8 meshes with the second gear 10, and then the electric stretching cylinder 9 rotates, thereby performing deep hole processing.

[0036] The working principle of the utility model is as follows: before starting the equipment, the extension length of the extension tube 9 is determined, and the motor 13 is started. The output shaft of the motor 13 drives the screw 15 to rotate, and the screw 15 drives the fixed block 16 which is threadedly penetrated therethrough to rotate, and the fixed block 16 is limited by the surface of the fixed frame 14, so it can only slide back and forth along the fixed frame 14, thereby driving the slip ring 12 to slide back and forth, and the slip ring 12 slides in the inner wall of the slide groove 11. When the slip ring 12 moves back and forth, it can drive the extension tube 9 to slide back and forth in the inner wall of the shell 3, thereby controlling the extension length of the extension tube 9, so that the tool clamped in the extension tube 9 can lengthen the use length of the milling cutter in disguised form without using an extra-long milling cutter. When the extension tube 9 slides back and forth in the inner wall of the first gear 8, the second gear 10 fixedly connected to the inner wall of the extension tube 9 meshes with the first gear 8, so that after the equipment stops running, the extension tube 9 can be stably extended or retracted along the inner wall of the shell 3 without being separated from the first gear 8 under the push of the fixed block 16, and finally started by the rotation of the drive shaft 4. The rotation of the drive shaft 4 drives the first helical gear 5 to rotate, and the first helical gear 5 meshes with the second helical gear 7. The second helical gear 7 drives the first gear 8 to rotate, and the first gear 8 meshes with the second gear 10, and then the electric extension tube 9 rotates, thereby performing deep hole processing.

[0037] Finally, a few points should be explained: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0038] In the drawings of the embodiments disclosed by the present invention, only the structures related to the embodiments disclosed by the present invention are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

Claims

1. A universal milling head for deep hole processing, comprising a machine body (1), a rotating disk (2), a shell (3) and an extension tube (9), characterized in that: The turntable (2) is mounted on the bottom end of the machine body (1), the housing (3) is fixed to the rotating shaft of the turntable (2), and the extension tube (9) is slidably engaged with the inner wall of the housing (3); An extension mechanism is arranged inside the housing (3), and comprises a slide groove (11), wherein the slide groove (11) is provided on the surface of the extension tube (9), a sliding ring (12) is provided on the inner wall of the slide groove (11), and a fixed block (16) is fixedly connected to the surface of the slide ring (12); wherein: A driving mechanism is arranged inside the housing (3).

2. The universal milling head for deep hole machining according to claim 1, characterized in that: A fixing frame (14) is fixedly connected to the inner wall of the housing (3), a motor (13) is mounted on the side end of the fixing frame (14), and an output shaft of the motor (13) rotates through the side end of the fixing frame (14) and extends inwardly.

3. The universal milling head for deep hole machining according to claim 2, characterized in that: The output shaft of the motor (13) is fixedly connected with a screw rod (15), and the screw rod (15) is rotatably connected to the inner wall of the housing (3), the fixing block (16) is slidably connected to the surface of the fixing frame (14), and the screw rod (15) is threadedly penetrated through the side end of the fixing block (16).

4. The universal milling head for deep hole machining according to claim 1, characterized in that: The driving mechanism comprises a driving shaft (4), wherein the driving shaft (4) is fixedly connected to the output shaft of the rotating disk (2), and the bottom end of the driving shaft (4) is fixedly connected to a first helical gear (5).

5. The universal milling head for deep hole machining according to claim 4, characterized in that: A fixing rod (6) is fixedly connected to the inner wall of the housing (3), and a side end of the fixing rod (6) is rotatably connected to a second helical gear (7), and the second helical gear (7) is meshingly connected to the first helical gear (5).

6. The universal milling head for deep hole machining according to claim 5, characterized in that: The side end extension shaft of the second helical gear (7) is fixedly connected to the first gear (8), the interior of the extension tube (9) is fixedly connected to the second gear (10), and the second gear (10) is meshingly connected to the first gear (8).

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