Double-end-face cutterhead angle head

Abstract

The utility model discloses a double-end-face cutterhead angle head which comprises a cutter handle, a fixing frame and a body, the fixing frame and the body are assembled in an up-down movable mode, and the cutter handle penetrates through the fixing frame and extends into the body. A bowl-shaped end face gear, a cylindrical straight gear, a middle straight gear and a cutter disc gear are arranged in the body. The bowl-shaped end face gear is provided with a ring foot portion and an end face gear portion, the bowl-shaped end face gear is connected with the cutter handle through the ring foot portion, the end face gear portion of the bowl-shaped end face gear is in orthogonal transmission meshing with the cylindrical straight gear, the cylindrical straight gear, the middle straight gear and the cutter disc gear are sequentially in transmission meshing, and the double-end-face cutter disc is installed at the output end of the cutter disc gear. The overall transmission rigidity of the angle head is improved, under the condition of gears of the same size, the needed installation space is smaller, the overall structural design is more compact and small, and the requirement for high-rotating-speed stable transmission of high-torque power in the narrow space is met.

Description

Technical Field

[0001] The utility model relates to the technical field of numerical control machining centers, in particular to a double-end face cutter head. Background Art

[0002] The current double-end cutter head angle head has some deficiencies in the design of structural compactness and transmission rigidity. In view of this, the applicant of this case conducted an in-depth study on the above-mentioned problems and proposed a double-end cutter head angle head that can effectively improve the above-mentioned problems. Utility Model Content

[0003] The utility model aims to provide a double-end cutter head with a small installation space and improved overall transmission rigidity, thereby meeting the demand for high-torque power transmission at high speed and stability.

[0004] In order to achieve the above purpose, the solution of the utility model is:

[0005] A double-end face cutter disc angle head comprises a cutter handle, a fixing frame and a body. The fixing frame and the body are assembled in an upward and downward manner. The cutter handle passes through the fixing frame and extends into the body. A bowl-shaped end face gear, a cylindrical spur gear, an intermediate spur gear and a cutter disc gear are arranged in the body. The bowl-shaped end face gear has a ring foot portion and an end face gear portion. The bowl-shaped end face gear is connected to the cutter handle through the ring foot portion. The end face gear portion of the bowl-shaped end face gear is orthogonally meshed with the cylindrical spur gear. The cylindrical spur gear, the intermediate spur gear and the cutter disc gear are meshed in sequence. A double-end face cutter disc is installed at the output end of the cutter disc gear.

[0006] An angle locking mechanism is provided between the fixing frame and the main body, and the angle locking mechanism includes two half-moon-shaped fixing blocks and a plurality of stud screws; the two half-moon-shaped fixing blocks are arranged in a ring shape and movably embedded in the fixing frame, and the plurality of stud screws are movably passed through the main body, one end of the stud screw is locked on the half-moon-shaped fixing block, and the other end of the stud screw is locked with a locking nut.

[0007] The half-moon-shaped fixing block comprises a locking portion and an inlaying portion. A sinking groove for sinking the locking portion and an inlaying groove corresponding to the inlaying portion are arranged in the fixing frame.

[0008] The knife handle is installed on the fixing frame through a fixing plate, and a bearing assembly is arranged between the knife handle and the fixing frame.

[0009] A ring-shaped locking flange is formed at the upper end of the body, and a plurality of through holes corresponding to the stud screws are opened on the locking flange.

[0010] The center of the bowl-shaped end face gear is provided with a gear coolant passage penetrating the ring foot portion and the end face gear portion.

[0011] One end of the gear coolant channel corresponding to the end face gear portion is a liquid inlet opening, and a hole connector is installed at the liquid inlet opening.

[0012] A body coolant channel is provided in the body, and the body coolant channel is connected to the hole connector correspondingly.

[0013] After adopting the above scheme, the beneficial effect of the double-end cutter disc angle head of the new type compared with the prior art is that the structure of the angle head that changes the output direction is designed as an orthogonal transmission meshing structure of a bowl-shaped end face gear and a spur gear. Through the precise meshing of the two, not only the overall transmission rigidity of the angle head is improved, but also, in the case of gears of the same size, the required installation space is smaller, and the overall structural design is more compact and small, which meets the needs of high-speed stable transmission of high-torque power in a small space. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is the front view of the new angle head;

[0015] Figure 2 It is a cross-sectional view of the novel angle head;

[0016] Figure 3 It is a structural schematic diagram of the new bowl-shaped end face gear;

[0017] Figure 4 is a schematic diagram of the angle locking mechanism.

[0018] Description of symbols

[0019] Tool handle 1, rivet 11, mounting groove 12, bearing assembly 13, fixing frame 2, countersunk groove 21, inlay groove 22, fixing plate 23, main body 3, locking flange 31, main body coolant channel 32, bowl-shaped end face gear 4, ring foot portion 41, end face gear portion 42, gear coolant channel 43, hole connector 44, cylindrical spur gear 5, intermediate spur gear 6, cutter disc gear 7, double end face cutter disc 8; angle locking mechanism 9, half-moon fixing block 91, locking portion 911, inlay portion 912, several stud screws 92, locking nut member 93. DETAILED DESCRIPTION

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0021] This case involves a double-end cutter head, such as Figure 1-4 As shown, it includes a tool handle 1, a fixing frame 2 and a body 3. The fixing frame 2 and the body 3 are assembled in an upward and downward manner, and the lower end of the tool handle 1 passes through the fixing frame 2 and extends into the body 3. The upper end of the tool handle 1 fits with the inner cavity of the machine tool spindle, and the pull nail 11 on the tool handle 1 cooperates with the pull claw of the machine tool spindle, and the tool handle 1 is driven by the machine tool spindle to rotate at a high speed.

[0022] The body 3 is provided with a bowl-shaped end face gear 4, a cylindrical spur gear 5, an intermediate spur gear 6 and a cutter disc gear 7. The bowl-shaped end face gear 4 has a ring foot portion 41 and an end face gear portion 42. The bowl-shaped end face gear 4 is connected to the handle 1 through the ring foot portion 41. Specifically, the lower end of the handle 1 is provided with a mounting groove 12, and the ring foot portion 41 is matched and embedded in the mounting groove 12. A gasket is provided between the handle 1 and the bowl-shaped end face gear 4. The end face gear portion 42 of the bowl-shaped end face gear 4 is arranged in orthogonal transmission meshing with the cylindrical spur gear 5, and the cylindrical spur gear 5, the intermediate spur gear 6 and the cutter disc gear 7 are arranged in sequential transmission meshing. The output end of the cutter disc gear 7 is installed with a double end face cutter disc 8.

[0023] During operation, the new double-face cutter disc angle head is driven by the machine tool spindle, driving the tool handle 1 and the bowl-shaped end face gear 4 to rotate at high speed, which is then transmitted in sequence through the cylindrical spur gear 5, the intermediate spur gear 6 and the cutter disc gear 7, and finally driving the double-face cutter disc 8 to rotate. The new type focuses on the design of the structure that changes the output direction of the angle head, adopts the orthogonal transmission meshing structure of the bowl-shaped end face gear and the spur gear, and utilizes the structural characteristics of the end face gear. Compared with the existing ordinary spiral bevel gear, the effective bearing area is increased. In addition, the cylindrical spur gear does not bear axial load during operation, which improves the overall transmission rigidity and bearing capacity of the angle head. Moreover, in the case of gears of the same size, the cylindrical spur gear can undergo axial displacement relative to the end face gear, and the required installation space is smaller (it can be 1 / 4 of the ordinary spiral bevel gear). The overall structural design is more compact and small, and finally meets the needs of high-speed stable transmission of high-torque power in a small space.

[0024] Preferably, an angle locking mechanism 9 is provided between the fixing frame 2 and the body 3 to achieve the adjustment of the angle rotation and angle positioning of the angle head. The angle locking mechanism 9 includes two half-moon-shaped fixing blocks 91 and a plurality of stud screws 92. The two half-moon-shaped fixing blocks 91 are arranged in an annular clamp type, and the two are movably embedded in the fixing frame 2, respectively. A plurality of stud screws 92 are movably penetrated on the body 3, one end of the stud screw 92 is locked on the half-moon-shaped fixing block 91, and the other end of the stud screw 92 is locked with a locking nut 93. A plurality of stud screws 92 can be evenly distributed on each half-moon-shaped fixing block 91.

[0025] When the angle head needs to be rotated for angle processing, it is only necessary to loosen the locking nut 93 and the angle head can be rotated. After rotating to the processing angle, it is only necessary to lock the locking nut 93 to achieve firm and precise angle positioning. The half-moon-shaped fixed block 91 adopted by the novel angle locking mechanism 9 is a semi-circular block structure, and the angle rotation adjustment is flexible and reliable. After locking, the force bearing area is large, the friction force is large, and the locking force rigidity can reach about 3 times that of the ordinary dispersed point structure. The novel angle head has an improved transmission rigidity and locking rigidity. The two cooperate with each other to optimize and improve the overall mechanical rigidity of the angle head.

[0026] Preferably, the semi-lunar fixing block 91 is movably installed in the fixing frame 2 in such a way that the semi-lunar fixing block 91 includes a locking portion 911 and an embedding portion 912, a sinking groove 21 and an embedding groove 22 are provided in the fixing frame 2, the locking portion 911 is sunk in the sinking groove 21, and the embedding portion 912 is correspondingly embedded in the embedding groove 22.

[0027] Preferably, the knife handle 1 is movably mounted on the fixing frame 2 via a fixing plate 23, and a bearing assembly 13 is disposed between the knife handle 1 and the fixing frame 2. The knife handle 1 rotates at a high speed under the support of the bearing assembly 13.

[0028] Preferably, a ring-shaped locking flange 31 is formed at the upper end of the body 3 , and a plurality of through holes corresponding to the stud screws 92 are formed on the locking flange 31 .

[0029] Preferably, the center of the bowl-shaped end face gear 4 has a gear coolant channel 43 that penetrates the ring foot portion 41 and the end face gear portion 42. The end of the gear coolant channel 43 corresponding to the end face gear portion 42 is a liquid inlet port, and a hole connector 44 is installed at the liquid inlet port. Further, a body coolant channel 32 is provided in the body 3, and the body coolant channel 32 is connected to the hole connector 44 accordingly.

[0030] The above description is only the preferred embodiment of the present invention. All equivalent changes and modifications made within the scope of the claims of the present invention shall fall within the scope of the claims of the present invention.

Claims

1. A double-end cutter head, characterized by: It includes a tool handle, a fixing frame and a body. The fixing frame and the body are assembled in an upward and downward manner. The tool handle passes through the fixing frame and extends into the body. A bowl-shaped end face gear, a cylindrical spur gear, an intermediate spur gear and a cutter disc gear are arranged in the body. The bowl-shaped end face gear has a ring foot portion and an end face gear portion. The bowl-shaped end face gear is connected to the tool handle through the ring foot portion. The end face gear portion of the bowl-shaped end face gear is orthogonally meshed with the cylindrical spur gear. The cylindrical spur gear, the intermediate spur gear and the cutter disc gear are meshed in sequence. A double end face cutter disc is installed at the output end of the cutter disc gear.

2. The double-end cutter head according to claim 1, characterized in that: An angle locking mechanism is provided between the fixing frame and the main body, and the angle locking mechanism includes two semi-lunar fixing blocks and a plurality of stud screws; the two semi-lunar fixing blocks are arranged in a ring and movably embedded in the fixing frame, and the plurality of stud screws are movably passed through the main body, one end of the stud screw is locked on the semi-lunar fixing block, and the other end of the stud screw is locked with a locking nut.

3. The double-end cutter head according to claim 2, characterized in that: The half-moon-shaped fixing block includes a locking portion and an inlaying portion. A sinking groove for sinking the locking portion and an inlaying groove corresponding to the inlaying portion are provided in the fixing frame.

4. The double-end cutter head according to claim 2, characterized in that: A ring-shaped locking flange is formed on the upper end of the body, and a plurality of through holes corresponding to the stud screws are opened on the locking flange.

5. The double-end cutter head according to claim 1, characterized in that: The knife handle is mounted on the fixing frame via a fixing plate, and a bearing assembly is provided between the knife handle and the fixing frame.

6. The double-end cutter head according to claim 1, characterized in that: The center of the bowl-shaped end face gear is provided with a gear coolant channel that penetrates the ring foot portion and the end face gear portion.

7. The double-end cutter head according to claim 6, characterized in that: One end of the gear coolant channel corresponding to the end face gear portion is a liquid inlet opening, and a hole connector is installed at the liquid inlet opening.

8. The double-end cutter head according to claim 7, characterized in that: A body cooling liquid channel is provided in the body, and the body cooling liquid channel is correspondingly communicated with the hole connecting piece.

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