A dual output milling head

Abstract

This invention provides a dual-output milling head, belonging to the field of machine tool technology. It includes a bottom dual-output frame, with an auxiliary top connector vertically mounted on the top surface of the bottom dual-output frame. A top mounting frame is horizontally fixed to the top of the auxiliary top connector. The device adopts an integrated transmission scheme with a single drive shaft input and synchronous reverse output at both ends. Using only one power input source, it can simultaneously drive the spindle attachments at both ends to rotate synchronously in opposite directions at the same speed. This completely eliminates the need for two separate power spindles required in traditional dual-output milling heads. The internal transmission structure of the entire machine is greatly simplified, and the overall size is more compact. It can be directly adapted to the standard mounting interfaces of most conventional CNC boring and milling machines without any modification to the original spindle mounting structure of the machine tool, allowing for rapid installation and docking. The adaptation and installation threshold of the equipment is greatly reduced, and manufacturing costs are effectively controlled.

Description

Technical Field

[0001] This invention relates to the field of machine tool technology, and more specifically, to a dual-output milling head. Background Technology

[0002] In current CNC milling machine milling operations, single-output milling heads have long dominated the mainstream application. These traditional milling heads can only provide power output in one direction and can only complete milling operations with a single tool specification after a single setup. When facing multi-process combined milling operations on complex workpieces, frequent machine stops are often required to change milling cutters of different specifications. Not only is tool changing time-consuming, but repeated tool positioning deviations are also prone to occur during multiple tool changes, directly affecting the milling accuracy of the workpiece and significantly lengthening the overall machining cycle. This makes it difficult to adapt to the high-efficiency batch processing requirements of high-precision and complex workpieces.

[0003] Currently, most dual-output milling machines adopt a split structure with two completely independent power spindles arranged in parallel. This results in a large overall size, complex internal transmission structure, and high manufacturing costs. Furthermore, it is difficult to precisely control the synchronization of the power output of the two independent spindles, leading to asynchronous vibration problems during operation and poor stability in milling. Additionally, these traditional dual-output structures mostly lack angle fine-tuning positioning mechanisms, preventing flexible adjustment of the milling angles at the two output ends according to workpiece processing requirements, thus limiting their applicability to various processing scenarios. Moreover, the internal transmission and lubrication structures of traditional milling heads are mostly enclosed and invisible designs, making it impossible for operators to observe the internal lubrication status in real time. Over long-term operation, insufficient lubrication can lead to abnormal wear of transmission components, significantly shortening the lifespan of the milling head. Summary of the Invention

[0004] The purpose of this invention is to address the problems of current dual-output milling equipment, which mostly employ a split structure with two completely independent power spindles arranged in parallel. This results in a large overall size, complex internal transmission structure, high manufacturing costs, and difficulty in precisely controlling the synchronization of the power output of the two independent spindles, leading to asynchronous vibration problems during operation and poor stability in milling. Furthermore, these traditional dual-output structures mostly lack angle fine-tuning positioning structures, preventing flexible adjustment of the milling angles at the two output ends according to workpiece processing requirements, thus limiting their applicability to various processing scenarios. In addition, the internal transmission and lubrication structures of traditional milling heads are mostly closed and invisible designs, making it impossible for operators to observe the internal lubrication status in real time. This leads to insufficient lubrication and abnormal wear of transmission components after long-term operation, significantly shortening the lifespan of the milling head. Therefore, this invention proposes a dual-output milling head.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solution: It is applied to machine tool devices to improve the above-mentioned problems.

[0006] The present invention is as follows: It includes a bottom dual-output frame, an auxiliary top connector is vertically installed on the top surface of the bottom dual-output frame, and a top mounting frame is horizontally fixed on the top of the auxiliary top connector; The bottom dual-output frame includes a main housing, with spindle accessory ends symmetrically installed at both ends of the main housing. A spindle end cap is fixedly installed at the end of each spindle accessory end, and a spindle key block is symmetrically fixedly installed at one end of each spindle accessory end. An external hexagonal screw is horizontally fixedly connected to the inner side of each spindle accessory end. A spindle spacer is horizontally sleeved on the inner side of the main housing, and a left-hand output is fixedly installed at one end of each spindle accessory end. The auxiliary top assembly includes a boring machine connecting pad, the bottom end of which is connected to a graduated ring, and a drive shaft is vertically inserted into the inner side of the boring machine connecting pad. An input right-hand drive is fixedly installed at the bottom end of the drive shaft, and a drive bearing sleeve is vertically fixedly installed on the inner side of the drive shaft. The top mounting frame includes a mounting top plate, the top surface of which is evenly provided with mounting through holes, and a transmission flange is snapped into the inner side of the groove on the top surface of the mounting top plate.

[0007] As a preferred embodiment of the present invention, an oil inlet is provided on the side of the main housing, and a sealing cover plate is bolted to the inner side of the oil inlet. The oil inlet is provided through the main housing near the top. An observation window is provided on the side of the main housing, and the observation window is provided through the main housing at the center of the side. A transparent plate structure is fixedly installed on the inner side of the observation window. Cover screws are evenly inserted into the side of the spindle end cover. The spindle end cover is fixedly installed at both ends of the main housing by the cover screws. Top mounting holes are evenly provided at the top of the main housing, and mounting screws are inserted into the inner side of the top mounting holes. The main housing is installed at the bottom of the boring machine connecting pad by the mounting screws.

[0008] As a preferred technical solution of the present invention, a T-shaped outer half-groove is fixedly installed on the bottom outer side of the boring machine connecting pad, a positioning screw is symmetrically threaded on the top outer side of the main housing, a T-shaped ring is fixedly installed on the inner bottom side of the boring machine connecting pad, and a buffer spring is uniformly fixedly engaged at the bottom end of the T-shaped ring.

[0009] As a preferred technical solution of the present invention, the bottom end of the auxiliary top connector is located at the top end of the bottom dual output frame, and the auxiliary top connector and the bottom dual output frame are arranged in a T-shape relative to each other. The top end of the auxiliary top connector is fixedly connected to the center of the bottom surface of the top mounting frame, and the top mounting frame is fixedly installed at the machine tool mounting end position through the mounting through hole.

[0010] As a preferred technical scheme of the present application, the main shell is in a T-shaped shell structure, the number of main shaft accessory ends is two, and the two main shaft accessory ends are symmetrically installed at the two open end positions of the main shell, the main shaft accessory end is fixedly connected to the inside of the main shell bearing, and the main shaft accessory end is fixedly connected to the outside of the hexagonal screw.

[0011] As a preferred technical scheme of the present application, the main shaft end cover is sealingly installed at the end joint gap position of the main shaft accessory end and the main shell, the main shaft key block is symmetrically arranged at one end edge position of the main shaft accessory end, and the milling head is installed at one end position of the main shaft accessory end through the main shaft key block.

[0012] As a preferred technical scheme of the present application, the hexagonal screw is horizontally arranged at the inside of the main shaft spacer, the left-handed output ring is fixedly connected at one end position of the main shaft accessory end, the side teeth of the left-handed output ring are tooth-connected with the bottom teeth of the right-handed input, the top end of the boring machine connecting pad is fixedly connected to the center position of the bottom surface of the installation top plate, and the boring machine connecting pad is sleeved on the outside of the transmission shaft.

[0013] As a preferred technical scheme of the present application, the scale ring is installed at the intermediate position between the bottom end of the boring machine connecting pad and the top end of the main shell, the transmission shaft is vertically arranged at the inside of the boring machine connecting pad, the bottom end of the transmission shaft is inserted into the inside of the main shell, and the installation through holes are arranged on the top surface of the installation top plate.

[0014] As a preferred technical scheme of the present application, the top surface of the installation top plate is a through hole structure, the bottom end of the transmission flange is fixedly connected to the top end of the transmission shaft, and the top end of the transmission flange is connected to the output end of the machine tool.

[0015] Compared with the prior art, the present application has the following advantages: In the scheme of the present application: 1. The two main shaft accessory ends of the device can respectively install different specifications of milling cutters, and after single clamping, two different milling processes can be completed synchronously, without stopping for tool changing, completely avoiding the auxiliary time consumption caused by frequent tool changing of the traditional single output milling head, and fundamentally eliminating the tool positioning deviation problem caused by multiple tool changes, greatly improving the milling precision of complex workpieces, while greatly shortening the overall processing period, especially suitable for batch milling of multi-process complex workpieces, effectively improving the overall processing efficiency of the numerical control boring and milling machine.

[0016] 2. The device is provided with a visual observation window on the side of the main shell, so that the operator can intuitively check the internal lubrication state at any time and supplement the lubricating oil in time, completely avoiding the problem of abnormal wear of the transmission parts caused by insufficient lubrication due to the invisible internal lubrication state of the traditional closed milling head, and greatly prolonging the overall service life of the milling head. At the same time, the T-shaped ring and the buffer spring structure are arranged at the bottom of the transmission shaft, which can effectively absorb the axial vibration generated during transmission, greatly reduce the equipment vibration during milling process, and significantly improve the surface quality of milling process. All transmission parts of the whole machine adopt embedded integrated layout, which has strong stability during operation and low maintenance difficulty, and has high industrial high-precision milling process scene popularization and application value.

[0017] 3. The device is provided with an angle adjusting structure which can rotate freely by 360 degrees between the bottom double output frame body and the auxiliary top connection body, which cooperates with the high-precision scale ring. The operator can accurately adjust the relative angle of the two end milling cutters according to the actual machining requirements of the workpiece, and can complete rigid locking through the positioning screw after adjustment, which can completely meet the combined milling machining requirements of different angles, greatly expand the machining scene range, and replace multiple special milling heads with different angle specifications with one device, greatly reducing the tool equipment procurement cost of enterprises. The device adopts an integrated transmission scheme of single transmission shaft input and synchronous reverse output at both ends, which can drive the accessory end of the main shaft at both ends to rotate at the same speed in the reverse direction at the same time by using only one power input source. The traditional double-output milling head completely abandons the split structure of two independent power shafts, the internal transmission structure of the whole machine is greatly simplified, the overall volume is more compact, and it can directly adapt to the standard installation interface of most conventional numerical control boring and milling machines without any modification to the original main shaft installation structure of the machine tool. The equipment adaptation installation threshold is greatly reduced, and the manufacturing cost is effectively controlled. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 The overall three-dimensional structure schematic diagram provided by the present application is shown in the figure; Figure 2 The overall three-dimensional bottom view structure schematic diagram provided by the present application is shown in the figure; Figure 3 The A part enlarged connection structure schematic diagram provided by the present application is shown in the figure; Figure 4 The overall three-dimensional top view structure schematic diagram provided by the present application is shown in the figure; Figure 5 The top mounting frame body connection structure schematic diagram provided by the present application is shown in the figure; Figure 6 The overall three-dimensional side view connection structure schematic diagram provided by the present application is shown in the figure; Figure 7 The main shaft accessory end enlarged detail structure schematic diagram provided by the present application is shown in the figure; Figure 8 This is a top view of the internal connection structure of the main housing provided by the present invention; Figure 9 This is a schematic diagram of the internal side view connection structure of the main housing provided by the present invention; Figure 10 This is a schematic diagram of the internal connection structure of the main housing provided by the present invention (viewed from below). Figure 11 A schematic diagram showing the detailed structure of the drive shaft connection provided by the present invention; Figure 12 This is a schematic diagram of the internal front view connection structure of the auxiliary top connector provided by the present invention; Figure 13 This is a top view schematic diagram of the internal connection structure of the auxiliary top connector provided by the present invention.

[0019] The image shows: 1. Bottom double output frame; 101. Main housing; 102. Oil inlet; 103. Sealing cover; 104. Observation window; 105. Spindle accessory end; 106. Spindle end cover; 107. Cover screw; 108. Spindle key block; 109. Top mounting hole; 110. Mounting screw; 111. External hexagonal screw; 112. Spindle spacer; 113. Output left-hand rotation; 2. Auxiliary top assembly; 201. Boring machine connecting pad; 202. T-shaped external half groove; 203. Scale ring; 204. Positioning screw; 205. Transmission bearing sleeve; 206. Input right-hand rotation; 207. T-ring; 208. Buffer spring; 209. Transmission shaft; 3. Top mounting frame; 301. Mounting top plate; 302. Mounting through hole; 303. Transmission flange. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Example 1: like Figures 1-13 As shown, the present invention provides a technical solution: a dual-output milling head, including a bottom dual-output frame 1, an auxiliary top connector 2 vertically mounted on the top surface of the bottom dual-output frame 1, a top mounting frame 3 horizontally fixedly mounted on the top of the auxiliary top connector 2, the bottom end of the auxiliary top connector 2 being located at the top of the bottom dual-output frame 1, and the auxiliary top connector 2 and the bottom dual-output frame 1 being arranged in a T-shape relative to each other, the top end of the auxiliary top connector 2 being fixedly connected to the center of the bottom surface of the top mounting frame 3, and the top mounting frame 3 being fixedly mounted at the machine tool mounting end position through a mounting through hole 302.

[0022] The device adopts an integrated transmission scheme with a single drive shaft input and synchronous reverse output at both ends. It only uses one set of power input sources to drive the spindle attachments at both ends to rotate synchronously in opposite directions at the same speed. This completely eliminates the separate structure of traditional dual-output milling heads that require two independent power spindles. The internal transmission structure of the whole machine is greatly simplified and the overall size is more compact.

[0023] Example 2: like Figures 1-13 As shown, the present invention provides a technical solution: a dual-output milling head, including a bottom dual-output frame 1, an auxiliary top connector 2 vertically mounted on the top surface of the bottom dual-output frame 1, a top mounting frame 3 horizontally fixedly mounted on the top of the auxiliary top connector 2, the bottom end of the auxiliary top connector 2 being located at the top of the bottom dual-output frame 1, and the auxiliary top connector 2 and the bottom dual-output frame 1 being arranged in a T-shape relative to each other, the top end of the auxiliary top connector 2 being fixedly connected to the center of the bottom surface of the top mounting frame 3, and the top mounting frame 3 being fixedly mounted at the machine tool mounting end position through a mounting through hole 302; The bottom dual-output frame 1 includes a main housing 101. Spindle accessory ends 105 are symmetrically installed at both ends of the main housing 101. The main housing 101 has a T-shaped housing structure. There are two spindle accessory ends 105, symmetrically installed at the two open ends of the main housing 101. Each spindle accessory end 105 is fixedly snapped into the inner bearing of the main housing 101. Both spindle accessory ends 105 are fixedly connected to the outer side of the external hexagonal screw 111. A spindle end cap 106 is fixedly installed at the end of each spindle accessory end 105. A spindle key 108 is symmetrically fixed to one end of the spindle accessory end 105. A spindle end cover 106 is sealed and installed at the end connection gap between the spindle accessory end 105 and the main housing 101. The spindle key 108 is symmetrically arranged at one edge of the spindle accessory end 105, and the milling head is installed at one end of the spindle accessory end 105 via the spindle key 108. An oil inlet 102 is provided on the side of the main housing 101. A sealing cover 103 is bolted to the inner side of the oil inlet 102. The oil inlet 102 is a through-hole inlet in the main housing 101. Near the top, an observation window 104 is provided on the side of the main housing 101. The observation window 104 is a through-hole located at the center of the side of the main housing 101. A transparent plate structure is fixedly installed on the inner side of the observation window 104. Cover screws 107 are evenly inserted into the side of the spindle end cover 106. The spindle end cover 106 is fixedly installed at both ends of the main housing 101 by the cover screws 107. Top mounting holes 109 are evenly provided at the top of the main housing 101. Mounting screws 110 are inserted into the inner side of the top mounting holes 109. The main housing 101 is fixedly installed by the mounting screws. 110 is installed at the bottom of the boring machine connecting pad 201. The inner side of the spindle accessory end 105 is horizontally fixedly connected to the external hexagonal screw 111. The inner side of the main housing 101 is horizontally sleeved with the spindle spacer 112. One end of the spindle accessory end 105 is fixedly installed with the output left-hand 113. The external hexagonal screw 111 is horizontally set on the inner side of the spindle spacer 112. The output left-hand 113 is fixedly connected in a ring shape at one end of the spindle accessory end 105, and the side teeth of the output left-hand 113 and the bottom teeth of the input right-hand 206 are toothed together.

[0024] Different sizes of milling cutters can be installed on the two spindle attachment ends of the device. After a single clamping is completed, two different milling operations can be completed simultaneously without stopping the machine to change tools in the middle. This completely avoids the auxiliary time consumption caused by frequent tool changes in traditional single-output milling heads, and also eliminates the problem of repeated tool positioning deviation caused by multiple tool changes at the source.

[0025] Example 3: like Figures 1-13As shown, the present invention provides a technical solution: a dual-output milling head, including a bottom dual-output frame 1, an auxiliary top connector 2 vertically mounted on the top surface of the bottom dual-output frame 1, a top mounting frame 3 horizontally fixedly mounted on the top of the auxiliary top connector 2, the bottom end of the auxiliary top connector 2 being located at the top of the bottom dual-output frame 1, and the auxiliary top connector 2 and the bottom dual-output frame 1 being arranged in a T-shape relative to each other, the top end of the auxiliary top connector 2 being fixedly connected to the center of the bottom surface of the top mounting frame 3, and the top mounting frame 3 being fixedly mounted at the machine tool mounting end position through a mounting through hole 302; The bottom dual-output frame 1 includes a main housing 101. Spindle accessory ends 105 are symmetrically installed at both ends of the main housing 101. The main housing 101 has a T-shaped housing structure. There are two spindle accessory ends 105, symmetrically installed at the two open ends of the main housing 101. Each spindle accessory end 105 is fixedly snapped into the inner bearing of the main housing 101. Both spindle accessory ends 105 are fixedly connected to the outer side of the external hexagonal screw 111. A spindle end cap 106 is fixedly installed at the end of each spindle accessory end 105. A spindle key 108 is symmetrically fixed to one end of the spindle accessory end 105. A spindle end cover 106 is sealed and installed at the end connection gap between the spindle accessory end 105 and the main housing 101. The spindle key 108 is symmetrically arranged at one edge of the spindle accessory end 105, and the milling head is installed at one end of the spindle accessory end 105 via the spindle key 108. An oil inlet 102 is provided on the side of the main housing 101. A sealing cover 103 is bolted to the inner side of the oil inlet 102. The oil inlet 102 is a through-hole inlet in the main housing 101. Near the top, an observation window 104 is provided on the side of the main housing 101. The observation window 104 is a through-hole located at the center of the side of the main housing 101. A transparent plate structure is fixedly installed on the inner side of the observation window 104. Cover screws 107 are evenly inserted into the side of the spindle end cover 106. The spindle end cover 106 is fixedly installed at both ends of the main housing 101 by the cover screws 107. Top mounting holes 109 are evenly provided at the top of the main housing 101. Mounting screws 110 are inserted into the inner side of the top mounting holes 109. The main housing 101 is fixedly installed by the mounting screws. 110 is installed at the bottom of the boring machine connecting pad 201. The inner side of the spindle accessory end 105 is horizontally fixedly connected to the external hexagonal screw 111. The inner side of the main housing 101 is horizontally sleeved with the spindle spacer 112. One end of the spindle accessory end 105 is fixedly installed with the output left-hand 113. The external hexagonal screw 111 is horizontally set on the inner side of the spindle spacer 112. The output left-hand 113 is fixedly connected in a ring shape at one end of the spindle accessory end 105. The side teeth of the output left-hand 113 and the bottom teeth of the input right-hand 206 are toothed together. The auxiliary top connector 2 includes a boring machine connecting pad 201. A graduated ring 203 is abutted at the bottom of the boring machine connecting pad 201. The top of the boring machine connecting pad 201 is fixedly connected to the center of the bottom surface of the mounting top plate 301. The boring machine connecting pad 201 is sleeved on the outer side of the drive shaft 209. The drive shaft 209 is vertically inserted into the inner side of the boring machine connecting pad 201. The graduated ring 203 is installed at the midpoint between the bottom of the boring machine connecting pad 201 and the top of the main housing 101. The drive shaft 209 is vertically positioned on the inner central axis of the boring machine connecting pad 201. At the line position, the bottom end of the drive shaft 209 extends and is inserted into the inner side of the main housing 101. The bottom end of the drive shaft 209 is fixedly installed with an input right-hand rotation 206. The inner side of the drive shaft 209 is vertically fixedly installed with a drive bearing sleeve 205. The bottom outer side of the boring machine connecting pad 201 is fixedly installed with a T-shaped outer half groove 202. The top outer side of the main housing 101 is symmetrically threaded with positioning screws 204. The bottom inner side of the boring machine connecting pad 201 is fixedly installed with a T-shaped ring 207. The bottom end of the T-shaped ring 207 is evenly fixedly snapped with a buffer spring 208.

[0026] The device features a 360-degree freely rotatable angle adjustment structure between the bottom dual-output frame and the auxiliary top assembly. Combined with a high-precision graduated ring, operators can precisely adjust the relative angle of the two end mills according to the actual processing requirements of the workpiece. After adjustment, the positioning screw can be used to achieve rigid locking, which can fully meet the combined milling processing requirements of different angles.

[0027] Example 4: like Figures 1-13 As shown, the present invention provides a technical solution: a dual-output milling head, including a bottom dual-output frame 1, an auxiliary top connector 2 vertically mounted on the top surface of the bottom dual-output frame 1, a top mounting frame 3 horizontally fixedly mounted on the top of the auxiliary top connector 2, the bottom end of the auxiliary top connector 2 being located at the top of the bottom dual-output frame 1, and the auxiliary top connector 2 and the bottom dual-output frame 1 being arranged in a T-shape relative to each other, the top end of the auxiliary top connector 2 being fixedly connected to the center of the bottom surface of the top mounting frame 3, and the top mounting frame 3 being fixedly mounted at the machine tool mounting end position through a mounting through hole 302; The bottom dual-output frame 1 includes a main housing 101. Spindle accessory ends 105 are symmetrically installed at both ends of the main housing 101. The main housing 101 has a T-shaped housing structure. There are two spindle accessory ends 105, symmetrically installed at the two open ends of the main housing 101. Each spindle accessory end 105 is fixedly snapped into the inner bearing of the main housing 101. Both spindle accessory ends 105 are fixedly connected to the outer side of the external hexagonal screw 111. A spindle end cap 106 is fixedly installed at the end of each spindle accessory end 105. A spindle key 108 is symmetrically fixed to one end of the spindle accessory end 105. A spindle end cover 106 is sealed and installed at the end connection gap between the spindle accessory end 105 and the main housing 101. The spindle key 108 is symmetrically arranged at one edge of the spindle accessory end 105, and the milling head is installed at one end of the spindle accessory end 105 via the spindle key 108. An oil inlet 102 is provided on the side of the main housing 101. A sealing cover 103 is bolted to the inner side of the oil inlet 102. The oil inlet 102 is a through-hole inlet in the main housing 101. Near the top, an observation window 104 is provided on the side of the main housing 101. The observation window 104 is a through-hole located at the center of the side of the main housing 101. A transparent plate structure is fixedly installed on the inner side of the observation window 104. Cover screws 107 are evenly inserted into the side of the spindle end cover 106. The spindle end cover 106 is fixedly installed at both ends of the main housing 101 by the cover screws 107. Top mounting holes 109 are evenly provided at the top of the main housing 101. Mounting screws 110 are inserted into the inner side of the top mounting holes 109. The main housing 101 is fixedly installed by the mounting screws. 110 is installed at the bottom of the boring machine connecting pad 201. The inner side of the spindle accessory end 105 is horizontally fixedly connected to the external hexagonal screw 111. The inner side of the main housing 101 is horizontally sleeved with the spindle spacer 112. One end of the spindle accessory end 105 is fixedly installed with the output left-hand 113. The external hexagonal screw 111 is horizontally set on the inner side of the spindle spacer 112. The output left-hand 113 is fixedly connected in a ring shape at one end of the spindle accessory end 105. The side teeth of the output left-hand 113 and the bottom teeth of the input right-hand 206 are toothed together. The auxiliary top connector 2 includes a boring machine connecting pad 201. A graduated ring 203 is abutted at the bottom of the boring machine connecting pad 201. The top of the boring machine connecting pad 201 is fixedly connected to the center of the bottom surface of the mounting top plate 301. The boring machine connecting pad 201 is sleeved on the outer side of the drive shaft 209. The drive shaft 209 is vertically inserted into the inner side of the boring machine connecting pad 201. The graduated ring 203 is installed at the midpoint between the bottom of the boring machine connecting pad 201 and the top of the main housing 101. The drive shaft 209 is vertically positioned on the inner central axis of the boring machine connecting pad 201. At the line position, the bottom end of the drive shaft 209 extends and is inserted into the inner side of the main housing 101. The bottom end of the drive shaft 209 is fixedly installed with an input right-hand rotation 206. The inner side of the drive shaft 209 is vertically fixedly installed with a drive bearing sleeve 205. The bottom outer side of the boring machine connecting pad 201 is fixedly installed with a T-shaped outer half groove 202. The top outer side of the main housing 101 is symmetrically threaded with positioning screws 204. The bottom inner side of the boring machine connecting pad 201 is fixedly installed with a T-shaped ring 207. The bottom end of the T-shaped ring 207 is evenly fixedly snapped with a buffer spring 208. The top mounting frame 3 includes a mounting top plate 301. The top surface of the mounting top plate 301 is evenly provided with mounting through holes 302. The mounting through holes 302 are all opened through the top surface of the mounting top plate 301 near the edge. A transmission flange 303 is snapped into the inner side of the groove on the top surface of the mounting top plate 301. The center of the top surface of the mounting top plate 301 is set as a through hole structure. The bottom end of the transmission flange 303 is fixedly connected to the top end of the transmission shaft 209, and the top end of the transmission flange 303 is connected to the output end of the machine tool.

[0028] The device features a visual observation window on the side of the main housing, allowing operators to visually inspect the internal lubrication status at any time and replenish lubricating grease promptly. This completely avoids the problems of traditional enclosed milling heads where the internal lubrication status is not visible and insufficient lubrication can lead to abnormal wear of transmission components, significantly extending the overall service life of the milling head.

[0029] Working Principle: The mounting plate 301 of the top mounting frame 3 is fixedly installed on the machine tool mounting end of the CNC boring and milling machine through the mounting through hole 302 on the top surface. The power output shaft of the machine tool is precisely connected and locked with the transmission flange 303, completing the pre-assembly connection between the whole machine and the machine tool. Then, according to the actual processing requirements of the workpiece, two different specifications of milling cutters are selected and installed on the spindle accessory ends 105 at both ends of the bottom double output frame 1. The circumferential positioning and locking of the cutters is completed by the spindle key block 108, ensuring that there is no relative rotation between the cutter and the spindle accessory end 105. According to the required processing angle of the workpiece, the positioning screw 204 on the outer side of the top of the main housing 101 is loosened, the bottom double output frame 1 is rotated as a whole, and the rotation angle is accurately read by the scale ring 203. The milling cutters at both ends are adjusted to the preset processing angle. After the angle is confirmed, the positioning screw 204 is tightened again to completely lock the relative position of the bottom double output frame 1 and the auxiliary top connecting body 2, avoiding angle deviation during processing. When the machine tool is started, power is transmitted to the drive shaft 209 via the transmission flange 303. The drive shaft 209 drives the input right-hand rotation 206 at the bottom to rotate synchronously. Through the tooth meshing structure on both sides, it synchronously drives the output left-hand rotation 113 at both ends to rotate in the opposite direction at the same speed, thereby driving the spindle accessory ends 105 on both sides to rotate synchronously, driving the milling cutters at both ends to perform milling operations on the workpiece simultaneously. During daily operation, the operator can check the lubricating oil level and lubrication status inside the main housing 101 in real time through the observation window 104 on the side of the main housing 101. When the lubricating oil level is insufficient, the sealing cover plate 103 on the side of the oil filling port 102 can be removed to add lubricating grease to the inside of the main housing 101. After adding, the sealing cover plate 103 can be reinstalled to complete the sealing. When the equipment requires maintenance after long-term use, the cover screws 107 on the side of the spindle end cover 106 can be unscrewed to pull the spindle accessory end 105 out of the main housing 101 to complete the cleaning and maintenance of the bearings and transmission components.

[0030] All technical features in this embodiment can be freely combined according to actual needs.

[0031] The above embodiments are preferred implementations of the present invention. In addition, the present invention can be implemented in other ways. Any obvious substitutions without departing from the concept of the present technical solution are within the protection scope of the present invention.

[0032] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0033] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-output milling head, comprising a bottom dual-output frame (1), characterized in that, The bottom double output frame (1) is vertically mounted with an auxiliary top connector (2), and the top of the auxiliary top connector (2) is horizontally fixed with a top mounting frame (3). The bottom dual-output frame (1) includes a main housing (101), with spindle accessory ends (105) symmetrically installed at both ends of the main housing (101). A spindle end cap (106) is fixedly installed at the end of the spindle accessory end (105). A spindle key block (108) is symmetrically fixedly installed at one end of the spindle accessory end (105). An external hexagonal screw (111) is horizontally fixedly connected to the inner side of the spindle accessory end (105). A spindle spacer (112) is horizontally sleeved on the inner side of the main housing (101). An output left-hand rotation (113) is fixedly installed at one end of the spindle accessory end (105). The auxiliary top connector (2) includes a boring machine connecting pad (201), the bottom end of the boring machine connecting pad (201) is connected to a scale ring (203), the inner side of the boring machine connecting pad (201) is vertically inserted with a drive shaft (209), the bottom end of the drive shaft (209) is fixedly installed with an input right-hand rotation (206), and the inner side of the drive shaft (209) is vertically fixedly installed with a drive bearing sleeve (205). The top mounting frame (3) includes a mounting top plate (301), and the top surface of the mounting top plate (301) is evenly provided with mounting through holes (302). A transmission flange (303) is snapped into the inner side of the groove on the top surface of the mounting top plate (301).

2. A dual-output milling head according to claim 1, characterized in that, The main housing (101) has an oil inlet (102) on its side. A sealing cover (103) is bolted to the inner side of the oil inlet (102). The oil inlet (102) is through-hole located on the side of the main housing (101) near the top. The main housing (101) also has an observation window (104) on its side. The observation window (104) is through-hole located at the center of the side of the main housing (101). A transparent plate structure is fixedly installed on the inner side of the observation window (104). The spindle end cover (106) is evenly fitted with cover screws (107) on its side. The spindle end cover (106) is fixedly installed at both ends of the main housing (101) by the cover screws (107). The top of the main housing (101) is evenly provided with top mounting holes (109). The inner side of the top mounting holes (109) is fitted with mounting screws (110). The main housing (101) is installed at the bottom of the boring machine connecting pad (201) by the mounting screws (110).

3. A dual-output milling head according to claim 1, characterized in that, The bottom outer side of the boring machine connecting pad (201) is fixedly installed with a T-shaped outer half groove (202), the top outer side of the main housing (101) is symmetrically threaded with positioning screws (204), the bottom inner side of the boring machine connecting pad (201) is fixedly installed with a T-shaped ring (207), and the bottom end of the T-shaped ring (207) is uniformly fixedly snapped with buffer springs (208).

4. A dual-output milling head according to claim 1, characterized in that, The bottom end of the auxiliary top connector (2) is located at the top of the bottom double output frame (1), and the auxiliary top connector (2) and the bottom double output frame (1) are arranged in a T-shape relative to each other. The top end of the auxiliary top connector (2) is fixedly connected to the center of the bottom surface of the top mounting frame (3), and the top mounting frame (3) is fixedly installed at the machine tool mounting end position through the mounting through hole (302).

5. A dual-output milling head according to claim 1, characterized in that, The main housing (101) is T-shaped. There are two spindle accessory ends (105), and the two spindle accessory ends (105) are symmetrically installed at the two open ends of the main housing (101). The spindle accessory ends (105) are fixedly snapped into the inner bearing of the main housing (101), and the spindle accessory ends (105) are fixedly connected to the outer side of the external hexagonal screw (111).

6. A dual-output milling head according to claim 1, characterized in that, The spindle end cap (106) is sealed and installed at the end connection gap between the spindle accessory end (105) and the main housing (101). The spindle key block (108) is symmetrically arranged at one end edge of the spindle accessory end (105), and the milling head is installed at one end of the spindle accessory end (105) through the spindle key block (108).

7. A dual-output milling head according to claim 1, characterized in that, The external hexagonal screw (111) is horizontally arranged on the inner side of the main spindle sleeve (112). The output left-hand screw (113) is fixedly connected in a ring at one end of the main spindle accessory end (105). The side teeth of the output left-hand screw (113) and the bottom teeth of the input right-hand screw (206) are toothed together. The top end of the boring machine connecting pad (201) is fixedly connected to the center of the bottom surface of the mounting plate (301). The boring machine connecting pad (201) is sleeved on the outer side of the transmission shaft (209).

8. A dual-output milling head according to claim 1, characterized in that, The scale ring (203) is installed at the middle position between the bottom end of the boring machine connecting pad (201) and the top end of the main housing (101). The drive shaft (209) is vertically installed at the inner center axis position of the boring machine connecting pad (201). The bottom end of the drive shaft (209) extends and is inserted into the inner side of the main housing (101). The mounting through holes (302) are all opened through the top surface of the mounting top plate (301) near the edge.

9. A dual-output milling head according to claim 1, characterized in that, The top surface of the mounting plate (301) is configured with a through hole structure at the center. The bottom end of the transmission flange (303) is fixedly connected to the top end of the transmission shaft (209), and the top end of the transmission flange (303) is connected to the output end of the machine tool.

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