A CNC offset universal milling head

Abstract

The present invention relates to the technical field related to universal milling heads, and in particular to a CNC offset universal milling head, comprising an adapter box, the upper surface of the adapter box is fixedly connected with a connection assembly, the lower surface of the adapter box is fixedly connected with a cooling assembly, the adapter box is fixedly connected with a spindle box via three strip plates and a plurality of mounting bolts, the inner top wall of the spindle box is fixedly connected with a power assembly, and the lower surface of the power assembly is rotatably connected with a disassembly assembly. This CNC offset universal milling head, through the provision of a cooling assembly, can supply water to the bent nozzle through a bellows, an externally threaded adapter and an internally threaded sleeve when in use, and spray water onto the surface of the milling head through the bent nozzle, thereby quickly reducing the high temperature generated by the milling head body and extending the service life of the milling head. At the same time, it can also rinse away the residue remaining on the surface of the milling head, ensuring that the milling head will not damage the parts during the parts processing process, and further improving the milling quality.

Description

Technical Field

[0001] The invention relates to the technical field related to universal milling heads, and in particular to a numerically controlled offset universal milling head. Background Art

[0002] The milling head is one of the machine tool accessories installed on the milling machine and connected to the spindle. It is used to drive the milling cutter to rotate. It is an important part of machine tool accessories and is mainly used for milling parts. With the rapid development of science and technology, the current milling head has developed into a universal milling head in order to adapt to the production of various special-shaped parts. The drive device and the connecting shaft are used to drive the milling head to rotate and move in all directions, thereby improving the part processing efficiency and increasing the processing quality.

[0003] At present, during normal use of the milling head, a cooling device is generally not added in order not to affect the driving device to drive the milling head to rotate and move in all directions. During the processing, the surface temperature of the milling head will continue to rise due to constant friction, which will affect the service life of the milling head over time. At the same time, the residue remaining on the surface of the milling head will directly affect the production quality of the milling head during the parts processing process, so there is room for improvement. Summary of the invention

[0004] The purpose of the present invention is to provide a numerically controlled offset universal milling head to solve the problem in the above background technology that the current universal milling head has no cooling device, which easily increases the wear of the milling head and reduces the quality of parts production.

[0005] To achieve the above object, the present invention provides the following technical solutions: a CNC offset universal milling head, comprising an adapter box, the upper surface of the adapter box is fixedly connected with a connection assembly, the lower surface of the adapter box is fixedly connected with a cooling assembly, the adapter box is fixedly connected with a spindle box through three strip plates and a plurality of mounting bolts, the inner top wall of the spindle box is fixedly connected with a power assembly, and the lower surface of the power assembly is rotatably connected with a disassembly assembly;

[0006] The cooling assembly includes a water spraying structure, a positioning structure and a driving structure. The positioning structure is used for installing and disassembling the water spraying structure, and the driving structure is used for driving the water spraying structure to rise and fall.

[0007] Preferably, the connecting assembly includes a connecting frame, a plurality of connecting bolts are threadedly connected to the upper surface of the connecting frame, and a connecting shaft is fixedly connected to the upper surface of the connecting frame.

[0008] Preferably, the water spray structure comprises a positioning frame, four positioning circular holes are provided on the left and right sides of the positioning frame, a bent spray head is fixedly connected to the lower surface of the positioning frame, and a water supply assembly is fixedly connected to the right side of the positioning frame.

[0009] Preferably, the water supply assembly includes an internally threaded sleeve, which passes through the positioning frame through a water pipe and is connected to the interior of the bending nozzle. The inner wall of the internally threaded sleeve is threadedly connected to an externally threaded adapter, and the right end of the externally threaded rotating head is rotatably connected to a bellows.

[0010] Preferably, the positioning structure includes a positioning box, the inner wall of the positioning box is slidably connected with a movable frame, the lower surface of the movable frame is provided with a slot, the inner top wall of the slot is provided with two slide grooves, the inner walls of the two slide grooves are slidably connected with sliders, the left side of the movable frame is rotatably connected with positive and negative screw rods, the two sliders are respectively threadedly connected to the positive and negative threads on the surfaces of the positive and negative screw rods, the lower surfaces of the two sliders are fixedly connected with movable blocks, the opposite surfaces of the two movable blocks are fixedly connected with four positioning rods, and the positioning rods are adapted to the positioning circular holes, the lower surface of the positioning box is fixedly connected with a baffle through four positioning bolts, the lower surface of the baffle is provided with fixing holes, the left side of the positioning box is provided with a strip groove adapted to the positive and negative screw rods, and the right side of the positioning box is provided with a strip hole adapted to the corrugated pipe.

[0011] Preferably, the driving structure includes a first motor, an output end of the first motor is fixedly connected to a round rod, the right end of the round rod is fixedly connected to the first bevel gear, the inner top wall of the positioning box is rotatably connected to a threaded rod, the surface of the threaded rod is fixedly connected to a second bevel gear, and the second bevel gear is meshed with the first bevel gear, the threaded rod is threadedly connected to the movable frame, the first motor can drive the first bevel gear to rotate through the round rod, thereby driving the threaded rod to rotate through the second bevel gear, and the threaded rod can drive the movable frame to rise after rotating, and when the movable frame moves downward, it can drive the bending nozzle to extend out from under the baffle, thereby supplying water through the bellows to flush the milling head, which can not only quickly reduce the surface temperature of the milling head and extend the service life of the milling head, but also can flush the residual slag on the surface of the milling head to ensure the processing quality, and when it is not needed, the threaded rod is used to drive the movable frame to rise, so that the bending nozzle is retracted into the positioning box without affecting the normal processing and use of the milling head.

[0012] Preferably, the power assembly includes a second motor, the output end of the second motor is fixedly connected to the driving shaft, the lower surface of the spindle box is fixedly connected to the base plate by a locking bolt, a circular hole is opened on the lower surface of the base plate, the inner wall of the circular hole is rotatably connected to the driving disk, and the bottom end of the driving shaft is fixedly connected to the upper surface of the driving disk.

[0013] Through the above solution, in actual use, the power assembly and the milling head are of separate structures. When disassembling and assembling the milling head, there is no need to remove the power assembly as a whole, which greatly reduces the difficulty of disassembly and assembly and has high practicality.

[0014] Preferably, the disassembly and assembly component includes a cylinder, which is fixedly connected to the lower surface of the driving disk, a positioning column is inserted into the inner wall of the cylinder, the bottom end of the positioning column is fixedly connected to the connecting disk, and the lower surface of the connecting disk is fixedly connected to the milling head body.

[0015] Preferably, the surface of the cylinder is provided with four threaded through holes, the inner walls of the four threaded through holes are threadedly connected with disassembly bolts, and the surface of the positioning column corresponding to the four threaded through holes is provided with disassembly thread grooves, and the disassembly bolts are adapted to the disassembly thread grooves.

[0016] Through the above solution, when the milling head body needs to be replaced to meet different processing requirements, it is only necessary to unscrew the four disassembly bolts to separate the positioning column from the cylinder, and take the positioning column out of the cylinder, and then the milling head body can be quickly dismantled, thereby replacing the milling head body corresponding to the processing requirements, which is highly flexible.

[0017] Compared with the prior art, the beneficial effects of the present invention are as follows: the CNC offset universal milling head, through the setting of the cooling component, can supply water to the bent nozzle through the bellows, the external thread adapter and the internal thread sleeve when in use, and spray water to the surface of the milling head through the bent nozzle, thereby quickly reducing the high temperature generated by the milling head body and extending the service life of the milling head. At the same time, the residue remaining on the surface of the milling head can also be rinsed clean, ensuring that the milling head will not damage the parts during the processing of the parts, further improving the milling quality, and the bent nozzle can pass through the first motor, the round rod, the first bevel gear, the second bevel gear The threaded rod is stored back into the positioning box without affecting the normal rotation and movement of the milling head body. When the bending nozzle is damaged, rotating the positive and negative screw rods can drive the two sliders to move toward the opposite sides, thereby driving the positioning rods to disengage from the positioning holes on the left and right sides of the positioning frame through the two movable blocks, so that the bending nozzle can be detached from the position below the movable frame, which is convenient for quick removal for replacement and maintenance. Through the setting of the power component and the disassembly and assembly component, the milling head body can be quickly disassembled and assembled during use, which is convenient for quick replacement of milling head bodies of different sizes according to different processing requirements, and has high flexibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0019] Figure 2 It is a schematic diagram of the front cross-section structure of the cooling assembly of the present invention;

[0020] Figure 3 It is a schematic diagram of the three-dimensional split structure of the water spray structure of the present invention;

[0021] Figure 4 It is a schematic diagram of a partial three-dimensional split structure of the positioning structure of the present invention;

[0022] Figure 5It is a schematic diagram of the driving structure of the present invention;

[0023] Figure 6 It is a schematic diagram of the three-dimensional disassembly structure of the power assembly and the disassembly assembly of the present invention;

[0024] Figure 7 This is a schematic diagram of the three-dimensional disassembly structure of the disassembly assembly of the present invention;

[0025] Figure 8 It is a schematic diagram of the front cross-section structure of the disassembly and assembly components of the present invention.

[0026] In the figure: 1, adapter box; 2, connecting assembly; 3, cooling assembly; 4, strip plate; 5, mounting bolts; 6, spindle box; 7, power assembly; 8, disassembly assembly; 31, water spray structure; 32, positioning structure; 33, driving structure; 34, water supply assembly; 201, connecting frame; 202, connecting bolts; 203, connecting shaft; 3101, positioning frame; 3102, bending nozzle; 3401, internal thread sleeve; 3402, external thread adapter; 3403, bellows; 3201, positioning box; 3202, movable frame; 32 03, slider; 3204, positive and negative threaded screws; 3205, movable block; 3206, positioning rod; 3207, positioning bolt; 3208, baffle; 3301, first motor; 3302, round rod; 3303, first bevel gear; 3304, threaded rod; 3305, second bevel gear; 701, second motor; 702, drive shaft; 703, locking bolt; 704, bottom plate; 705, drive disk; 801, cylinder; 802, positioning column; 803, connecting disk; 804, milling head body; 805, disassembly bolt. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] See also Figure 1-8 The present invention provides a technical solution: a CNC offset universal milling head, comprising an adapter box 1, a connection assembly 2 is fixedly connected to the upper surface of the adapter box 1, a cooling assembly 3 is fixedly connected to the lower surface of the adapter box 1, a spindle box 6 is fixedly connected to the adapter box 1 through three strip plates 4 and a plurality of mounting bolts 5, a power assembly 7 is fixedly connected to the inner top wall of the spindle box 6, and a disassembly assembly 8 is rotatably connected to the lower surface of the power assembly 7;

[0029] The cooling assembly 3 includes a water spraying structure 31 , a positioning structure 32 and a driving structure 33 . The positioning structure 32 is used for installing and disassembling the water spraying structure 31 , and the driving structure 33 is used for driving the water spraying structure 31 to rise and fall.

[0030] Furthermore, the connecting assembly 2 includes a connecting frame 201, the upper surface of which is threadedly connected to a plurality of connecting bolts 202, and the upper surface of the connecting frame 201 is fixedly connected to a connecting shaft 203, which is connected to the driving device through the connecting shaft 203 to ensure all-round rotation and movement of the milling head.

[0031] Furthermore, the water spray structure 31 includes a positioning frame 3101, and four positioning circular holes are opened on the left and right sides of the positioning frame 3101. A bent nozzle 3102 is fixedly connected to the lower surface of the positioning frame 3101, and a water supply component 34 is fixedly connected to the right side of the positioning frame 3101. The bending angle of the bent nozzle 3102 is aligned with the position of the milling head, which can ensure that the water flow can directly hit the surface of the milling head.

[0032] Furthermore, the water supply component 34 includes an internal threaded sleeve 3401, which passes through the positioning frame 3101 through a water pipe and is connected to the interior of the bending nozzle 3102. The inner wall of the internal threaded sleeve 3401 is threadedly connected to an external threaded adapter 3402, and the right end of the external threaded rotating head 3402 is rotatably connected to a bellows 3403. The bellows 3403 passes through the right side of the positioning box 3201 and is threadedly connected to the internal threaded sleeve 3401 through the external threaded adapter 3402. Since the bellows 3402 and the external threaded adapter 3402 are rotationally connected, the normal rotation and movement of the universal milling head will not be affected, and normal water supply can be maintained.

[0033] Furthermore, the positioning structure 32 includes a positioning box 3201, the inner wall of the positioning box 3201 is slidably connected to a movable frame 3202, the lower surface of the movable frame 3202 is provided with a card slot, the inner top wall of the card slot is provided with two slide slots, the inner walls of the two slide slots are slidably connected to sliders 3203, the left side of the movable frame 3202 is rotatably connected to a positive and negative threaded rod 3204, the two sliders 3203 are respectively threadedly connected to the positive and negative threads on the surface of the positive and negative threaded rod 3204, the lower surfaces of the two sliders 3203 are fixedly connected to movable blocks 3205, the opposite surfaces of the two movable blocks 3205 are fixedly connected to four positioning rods 3206, and the positioning rods 3206 are adapted to the positioning circular holes, and the lower surface of the positioning box 3201 is fixedly connected to the movable block 3205 by four positioning screws. The bolt 3207 is fixedly connected to the baffle plate 3208, and a fixing hole is provided on the lower surface of the baffle plate 3208. A strip groove compatible with the positive and negative screw rods 3204 is provided on the left side of the positioning box 3201, and a strip hole compatible with the bellows 3403 is provided on the right side of the positioning box 3201. Rotating the positive and negative screw rods 3204 can drive the two sliders 3203 to move to the opposite sides or opposite sides respectively, thereby driving the positioning rod 3206 to disengage from the positioning circular holes on both sides of the positioning frame 3101 through the two movable blocks 3205. After the positioning frame 3101 loses its restriction, the positioning frame 3101 and the bending nozzle 3102 can be taken out of the positioning box 3201, so that the bending nozzle 3102 can be inspected and replaced, which has high flexibility.

[0034] Furthermore, the driving structure 33 includes a first motor 3301, the output end of the first motor 3301 is fixedly connected to a round rod 3302, the right end of the round rod 3302 is fixedly connected to a first bevel gear 3303, the inner top wall of the positioning box 3201 is rotatably connected to a threaded rod 3304, the surface of the threaded rod 3304 is fixedly connected to a second bevel gear 3305, and the second bevel gear 3305 is meshed with the first bevel gear 3303, the threaded rod 3304 is threadedly connected to the movable frame 3202, and the first motor 3301 can drive the first bevel gear 3303 to rotate through the round rod 3302, thereby driving the second bevel gear 3305 to rotate. The threaded rod 3304 rotates, and after the rotation, the threaded rod 3304 can drive the movable frame 3202 to rise and fall. When the movable frame 3202 moves downward, it can drive the bending nozzle 3102 to extend out from under the baffle 3208, so that water is supplied through the bellows 3403 to flush the milling head, which can not only quickly reduce the surface temperature of the milling head and extend the service life of the milling head, but also can flush the residual material residue on the surface of the milling head to ensure the processing quality, and when it is not needed, the threaded rod 3304 is used to drive the movable frame 3202 to rise, so that the bending nozzle 3102 is retracted into the positioning box 3201, which does not affect the normal processing and use of the milling head.

[0035] Furthermore, the power assembly 7 includes a second motor 701, the output end of the second motor 701 is fixedly connected to a drive shaft 702, the lower surface of the spindle box 6 is fixedly connected to a base plate 704 via a locking bolt 703, a circular hole is opened on the lower surface of the base plate 704, the inner wall of the circular hole is rotatably connected to a drive disk 705, and the bottom end of the drive shaft 702 is fixedly connected to the upper surface of the drive disk 705.

[0036] Through the above solution, in actual use, the power assembly 7 and the milling head are of a separate structure. When the milling head is disassembled, there is no need to remove the power assembly 7 as a whole, which greatly reduces the difficulty of disassembly and assembly and has high practicality.

[0037] Furthermore, the disassembly and assembly component 8 includes a cylinder 801, which is fixedly connected to the lower surface of the driving disk 705, a positioning column 802 is inserted into the inner wall of the cylinder 801, the bottom end of the positioning column 802 is fixedly connected to the connecting disk 803, and the lower surface of the connecting disk 803 is fixedly connected to the milling head body 804.

[0038] Furthermore, four threaded through holes are provided on the surface of the cylinder 801, and the inner walls of the four threaded through holes are threadedly connected with disassembly bolts 805, and the surface of the positioning column 802 is provided with disassembly thread grooves at positions corresponding to the four threaded through holes, and the disassembly bolts 805 are adapted to the disassembly thread grooves.

[0039] Through the above solution, when the milling head body 804 needs to be replaced to meet different processing requirements, it is only necessary to unscrew the four disassembly bolts 805 to separate the positioning column 802 from the cylinder 801, and take the positioning column 802 out of the cylinder 801, and then the milling head body 804 can be quickly dismantled, thereby replacing the milling head body 804 corresponding to the processing requirements, which has high flexibility.

[0040] Working principle: When using the universal milling head, first insert the milling head body 804 into the cylinder 801 through the connecting plate 803 and the positioning column 802, and use four disassembly bolts 805 to lock the positioning column 802, so as to fix the milling head body 804. When it is necessary to mill parts of different sizes, the milling head body 804 can be quickly and conveniently replaced by disassembly bolts 805 and positioning columns 802. The connecting shaft 203 is used to connect with the driving device, and the driving device and the connecting shaft 203 can be used to drive the milling head body 804 to rotate and move in different directions. At the same time, when the milling head body 804 is used to process parts, the first motor 3301 is turned on. The first motor 3301 can drive the first bevel gear 3303 to rotate through the round rod 3302, thereby driving the second bevel gear 3305 and the threaded rod 3304 to rotate. After the threaded rod 3304 rotates, it can drive the movable frame 3202 to descend, thereby driving the bending nozzle 3102 to extend out of the baffle 32 08, and water is supplied through the bellows 3403, and the position of the milling head body 804 is flushed through the bent nozzle 3102 to reduce the temperature of the milling head body 804, and at the same time, the residue remaining on the surface of the milling head body 804 is flushed clean to ensure the processing quality, and the bellows 3403 is threadedly connected to the internal thread sleeve 3401 by the external thread adapter 3402, and the bellows 3403 and the external thread adapter 3402 are also rotatably connected, so it will not affect the milling head body 804. 04's normal rotation movement has high flexibility. When the bending nozzle 3102 is damaged, it only needs to reversely rotate the forward and reverse screw rods 3204. At this time, the forward and reverse screw rods 3204 can drive the two sliders 3203 to move toward opposite sides, so that the two movable blocks 3205 drive the positioning rods 3206 away from the positioning circular holes, so that the positioning frame 3101 loses its restriction, thereby facilitating the removal of the positioning frame 3101 and the bending nozzle 3102 from the baffle 3208 for inspection and replacement.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A CNC offset universal milling head, comprising a transfer box (1), characterized in that: The upper surface of the transfer box (1) is fixedly connected to a connection assembly (2), the lower surface of the transfer box (1) is fixedly connected to a cooling assembly (3), the transfer box (1) is fixedly connected to a spindle box (6) via three strip plates (4) and a plurality of mounting bolts (5), the inner top wall of the spindle box (6) is fixedly connected to a power assembly (7), and the lower surface of the power assembly (7) is rotatably connected to a disassembly assembly (8); The cooling assembly (3) comprises a water spraying structure (31), a positioning structure (32) and a driving structure (33); the positioning structure (32) is used for installing and removing the water spraying structure (31); and the driving structure (33) is used for driving the water spraying structure (31) to rise and fall.

2. A CNC offset universal milling head according to claim 1, characterized in that: The connection assembly (2) comprises a connection frame (201), a plurality of connection bolts (202) are threadedly connected to the upper surface of the connection frame (201), and a connection shaft (203) is fixedly connected to the upper surface of the connection frame (201).

3. The CNC offset universal milling head according to claim 1, characterized in that: The water spray structure (31) comprises a positioning frame (3101), four positioning circular holes are provided on the left and right sides of the positioning frame (3101), a bent spray head (3102) is fixedly connected to the lower surface of the positioning frame (3101), and a water supply component (34) is fixedly connected to the right side of the positioning frame (3101).

4. The CNC offset universal milling head according to claim 1, characterized in that: The water supply assembly (34) comprises an internally threaded sleeve (3401), which passes through the positioning frame (3101) through a water pipe and is connected to the interior of the bent nozzle (3102); the inner wall of the internally threaded sleeve (3401) is threadedly connected to an externally threaded adapter (3402), and the right end of the externally threaded rotating head (3402) is rotatably connected to a bellows (3403).

5. The CNC offset universal milling head according to claim 1, characterized in that: The positioning structure (32) comprises a positioning box (3201), the inner wall of the positioning box (3201) is slidably connected to a movable frame (3202), a clamping groove is provided on the lower surface of the movable frame (3202), the inner top wall of the clamping groove is provided with two slide grooves, the inner walls of the two slide grooves are both slidably connected to sliders (3203), the left side of the movable frame (3202) is rotatably connected to a positive and negative threaded rod (3204), the two sliders (3203) are respectively threadedly connected to the positive and negative threads on the surface of the positive and negative threaded rod (3204), and the lower surfaces of the two sliders (3203) are both fixedly connected to movable The movable blocks (3205) are fixedly connected to the opposite surfaces of the two movable blocks (3205) with four positioning rods (3206), and the positioning rods (3206) are matched with the positioning circular holes. The lower surface of the positioning box (3201) is fixedly connected with a baffle (3208) through four positioning bolts (3207). The lower surface of the baffle (3208) is provided with a fixing hole. The left side of the positioning box (3201) is provided with a strip groove matched with the positive and negative threaded rods (3204). The right side of the positioning box (3201) is provided with a strip hole matched with the bellows (3403).

6. The CNC offset universal milling head according to claim 1, characterized in that: The driving structure (33) comprises a first motor (3301), the output end of the first motor (3301) is fixedly connected to a round rod (3302), the right end of the round rod (3302) is fixedly connected to a first bevel gear (3303), the inner top wall of the positioning box (3201) is rotatably connected to a threaded rod (3304), the surface of the threaded rod (3304) is fixedly connected to a second bevel gear (3305), the second bevel gear (3305) is meshed with the first bevel gear (3303), and the threaded rod (3304) is threadedly connected to the movable frame (3202).

7. The CNC offset universal milling head according to claim 1, characterized in that: The power assembly (7) comprises a second motor (701), the output end of the second motor (701) is fixedly connected to a drive shaft (702), the lower surface of the spindle box (6) is fixedly connected to a base plate (704) via a locking bolt (703), a circular hole is provided on the lower surface of the base plate (704), a drive disk (705) is rotatably connected to the inner wall of the circular hole, and the bottom end of the drive shaft (702) is fixedly connected to the upper surface of the drive disk (705).

8. The CNC offset universal milling head according to claim 1, characterized in that: The disassembly assembly (8) comprises a cylinder (801), the cylinder (801) is fixedly connected to the lower surface of the driving disk (705), a positioning column (802) is inserted into the inner wall of the cylinder (801), the bottom end of the positioning column (802) is fixedly connected to a connecting disk (803), and the lower surface of the connecting disk (803) is fixedly connected to a milling head body (804).

9. The CNC offset universal milling head according to claim 8, characterized in that: The surface of the cylinder (801) is provided with four threaded through holes, the inner walls of the four threaded through holes are all threadedly connected with disassembly bolts (805), and the surface of the positioning column (802) is provided with disassembly thread grooves at positions corresponding to the four threaded through holes, and the disassembly bolts (805) are adapted to the disassembly thread grooves.

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