Motor bracket drilling and milling equipment

Abstract

The invention relates to the technical field of motor support machining auxiliary equipment, in particular to motor support drilling and milling equipment. The clamping turnover mechanism is arranged on the operation base table and used for clamping a workpiece, the tool magazine mechanism is used for drilling and milling the workpiece, the portal frame is arranged on the operation base table and stretches across the clamping turnover mechanism, and a linear module used for being matched with the tool magazine mechanism is arranged on the portal frame; the clamping and overturning mechanism comprises an installation bottom plate fixedly connected to the operation base table, a clamp tool used for clamping and positioning a workpiece and an overturning assembly used for overturning the clamp tool so that the workpiece can be aligned to the tool magazine mechanism. The method and the device have the effect of improving the problems of low manual operation efficiency and large alignment error.

Description

Technical Field

[0001] This application relates to the technical field of auxiliary equipment for motor bracket processing, and in particular to a drilling and milling machine for motor brackets. Background Technology

[0002] Motor brackets are key structural components in various motor assemblies, precisely securing the motor body and ensuring correct relative positioning with connected mechanisms. Motor brackets typically require multiple processes, including milling, drilling, and tapping, to machine numerous high-precision mounting holes, locating stops, and threaded holes, thereby guaranteeing assembly accuracy and operational stability.

[0003] In related technologies, motor brackets have processing features on multiple sides. Common processing methods usually involve using multiple single-function machine tools such as vertical milling machines, drilling machines, and tapping machines to form a production line. Operators move workpieces between different processes to complete the processing of different sides in sequence.

[0004] Regarding the aforementioned technologies, when a workpiece needs to be machined with holes in different directions, operators must frequently perform manual disassembly, flipping, reclamping, and alignment. This is not only cumbersome and inefficient, but also heavily reliant on the operator's experience. The repeatability of manual positioning is poor, and alignment errors can easily lead to workpiece scrap. Furthermore, during clamping and machining, the operator's hands frequently need to be near heavy fixtures and high-speed rotating cutting tools, posing safety hazards. Summary of the Invention

[0005] To improve the problems of low efficiency and large positioning error in manual operation, this application provides a drilling and milling device for motor brackets.

[0006] The technical solution of the motor bracket drilling and milling equipment provided in this application is as follows: A drilling and milling machine for a motor bracket includes an operating base, a clamping and flipping mechanism disposed on the operating base for clamping a workpiece, and a tool magazine mechanism for drilling and milling the workpiece. The clamping and flipping mechanism includes a mounting base plate fixedly connected to the operating base, a clamping fixture for clamping and positioning the workpiece, and a flipping component for flipping the clamping fixture so that the workpiece is aligned with the tool magazine mechanism.

[0007] By adopting the above technical solution, the clamping and flipping mechanism enables automatic clamping and flipping of the workpiece. Combined with the tool magazine mechanism, it significantly reduces manual intervention in disassembly, flipping, clamping, and alignment. Drilling and milling of holes in different directions can be completed without frequent manual operation, simplifying the operation process and helping to improve production efficiency. The mechanical positioning and flipping mechanism reduces reliance on operator experience, lowers alignment errors caused by manual positioning, and reduces workpiece scrap. Operators do not need to frequently approach heavy fixtures and high-speed rotating tools, reducing safety hazards and improving the automation level and reliability of motor-supported drilling and milling operations.

[0008] Furthermore, the fixture includes a flipping base installed on the flipping assembly, a pad block disposed on the top side of the flipping base and matching the shape of the workpiece, a first clamping block disposed on the top side of the pad block and used to press the outer wall of the workpiece, and a second clamping block disposed on the top side of the flipping base and used to press the inner wall of the workpiece, wherein the second clamping block is arranged adjacent to the pad block.

[0009] By adopting the above technical solution, a pad matching the workpiece shape is set as a basic support. Combined with the coordinated clamping of the first clamping block from the outer wall of the workpiece and the second clamping block from the inner wall, a stable and close clamping positioning of the motor bracket workpiece can be achieved. This internal and external clamping method improves the stability of the workpiece during flipping and processing, reducing processing deviations caused by workpiece loosening. The adaptation of the pad to the workpiece shape and the targeted arrangement of the first and second clamping blocks ensure the positional accuracy of the workpiece at different processing angles, providing a reliable guarantee for the accuracy of subsequent drilling and milling operations. It also works well with the flipping action of the flipping component, achieving stable clamping in automated processing.

[0010] Furthermore, the pad has a positioning protrusion on its top side that matches the groove on the bottom side of the workpiece.

[0011] By adopting the above technical solution, the positioning protrusion matches the groove on the bottom side of the workpiece, achieving precise positioning when the workpiece is placed. Combined with the support of the pad block, the initial position of the workpiece on the fixture can be quickly determined, providing a foundation for the subsequent clamping of the first and second clamping blocks and reducing positioning errors caused by workpiece position displacement during clamping. Simultaneously, the interlocking relationship between the positioning protrusion and the groove enhances the workpiece's resistance to displacement during flipping and machining, improving the overall reliability of clamping and positioning, and providing a foundation for drilling and milling machining accuracy.

[0012] Furthermore, the flip base is provided with a partition plate at an adjacent position to the pad, and the partition plate is provided with a positioning pin for inserting into the workpiece opening on the side away from the pad. The flip base is divided by the partition plate into a first station for milling and front drilling of the workpiece and a second station for side drilling of the workpiece.

[0013] By adopting the above technical solution, the partition plate divides the flipping base into a first station and a second station. After the workpiece completes different processes such as milling, front drilling, and tapping on the same fixture, it is transferred to the second station for side drilling. A locating pin is inserted into the workpiece's opening to position the workpiece. The multi-station setup eliminates the need to change fixtures during workpiece processing. The locating pins reduce workpiece positioning errors during process transitions, improving processing continuity and efficiency. The combination of station division and multi-directional positioning ensures the independence and accuracy of each processing step, as well as the stability of the workpiece during processing, effectively limiting workpiece displacement and wobbling, and providing a more reliable positional reference for high-precision machining.

[0014] Furthermore, the partition plate is provided with a third clamping block for clamping the workpiece at a position adjacent to the positioning pin.

[0015] By adopting the above technical solution, a third clamping block is set at the position adjacent to the positioning pin of the partition plate. Both are located in the second workstation, forming a targeted and coordinated positioning and clamping effect. The third clamping block cooperates with the positioning action of the positioning pin when it is inserted into the workpiece opening to press the workpiece in the second workstation, eliminating the gap between the workpiece and the partition plate during processing in the second workstation, enhancing the stability of the workpiece during side drilling, avoiding workpiece displacement caused by processing vibration, and ensuring high-precision side drilling in the second workstation.

[0016] Furthermore, the flip base is provided with a first driving member for cooperating with the first clamping block and a second driving member for cooperating with the second clamping block on the bottom side, and the partition plate is provided with a third driving member for cooperating with the third clamping block on the side near the pad block.

[0017] By adopting the above technical solution, a first, second, and third driving component are set up to cooperate with corresponding clamping blocks, thereby achieving automated control of the workpiece clamping action. The first driving component, in cooperation with the first clamping block, can precisely drive the first clamping block to complete the clamping action from the outer wall of the workpiece. The second driving component, in cooperation with the second clamping block, can reliably drive the second clamping block to achieve stable clamping from the inner wall of the workpiece. The third driving component is located on the partition plate near the pad and cooperates with the third clamping block, specifically driving the third clamping block to effectively clamp the workpiece at the second station. This automated driving method replaces manual operation of the clamping blocks, reducing labor intensity. Furthermore, through precise control of the driving components, it ensures the consistency of clamping force and the accuracy of position for each clamping block, reducing workpiece positioning errors caused by uneven force or positional deviations during manual operation. Simultaneously, each driving component can work collaboratively according to the workpiece processing requirements, quickly completing clamping and releasing actions during workpiece loading, processing, and station switching, improving the continuity and efficiency of the overall processing flow.

[0018] Furthermore, the flipping assembly includes a first rotating seat and a second rotating seat mounted on the mounting base plate. The first rotating seat and the second rotating seat are respectively located on both sides of the flipping base. The first rotating seat and the second rotating seat are respectively provided with mounting chucks for connecting the flipping base on their two adjacent sides.

[0019] By adopting the above technical solution, a first rotating seat and a second rotating seat are set on the mounting base plate, one active and one passive. The mounting chucks of both seats connect to the tilting base, providing stable and symmetrical support. This stable support ensures the workpiece maintains its upright posture precisely, preventing deviations in side exposure due to instability and affecting the milling cutter's insertion for machining. The two-sided support structure ensures balanced force on the tilting base when bearing the workpiece and performing the tilting action, reducing swaying or deformation caused by unilateral force and providing a foundation for a smooth tilting process. The rigidity of the mounting chuck ensures the accuracy of the tilting action, maintaining the accurate relative position between the workpiece's side and the milling cutter after it is upright. This allows the milling cutter to smoothly insert and complete high-precision milling. Automated workpiece lifting eliminates the need for manual intervention to expose the side, improving operational efficiency and reducing the impact of human factors on machining accuracy.

[0020] Furthermore, the tool magazine mechanism includes a milling cutter assembly for milling a workpiece, a drill bit assembly for drilling, and a tapping bit assembly for tapping. The operating base is provided with a gantry frame spanning above the clamping and flipping mechanism. The gantry frame is provided with a linear module for cooperating with the tool magazine mechanism. The gantry frame is provided with a tool magazine base plate for mounting each tool head. The tool magazine base plate is used to cooperate with the linear module to align each tool head with the workpiece.

[0021] By adopting the above technical solution, the integrated milling cutter assembly, drill assembly, and tapping assembly meet the needs of multiple processes such as milling, drilling, and tapping in motor bracket machining. Combined with the linear module on the gantry, it eliminates the need for frequent changes of external machining equipment, enabling continuous operation of multiple processes on the same machine. The integrated setup significantly shortens process changeover time, reduces workpiece loss during transfer between different machines, and improves overall machining efficiency. The tool magazine base plate on the gantry works in conjunction with the linear module to precisely drive the movement of each tool head and align it with the workpiece. The high-precision drive characteristics of the linear module ensure the accuracy of the tool head's position during switching and movement, allowing milling cutters, drills, and taps to accurately align with the machining area of ​​the workpiece. Whether machining the front or the side after being upright by the flipping assembly, stable machining accuracy is maintained. The integration of the tool magazine mechanism with the automation of the linear module reduces manual tool changing and alignment operations, minimizing the impact of human error on machining quality. This synergizes with the automated flipping function of the clamping and flipping mechanism, improving the machining quality and production efficiency of the motor bracket.

[0022] Furthermore, the gantry frame is provided with a Z-axis lifting module for driving the tool magazine base plate along the height direction, and the tool magazine base plate is provided with an X-axis horizontal module for driving each tool head assembly along the length direction on the bottom side. The tool magazine base plate is provided with multiple Y-axis horizontal modules at intervals along the X-axis horizontal modules on the bottom side, and each tool head assembly is installed below each Y-axis horizontal module. The milling cutter assembly includes a milling cutter head for milling a workpiece and a telescopic drive for driving the milling cutter head to extend and retract in a vertical direction; the drill assembly includes a drill bit for drilling a hole in a workpiece and the telescopic drive; and the tapping assembly includes a tapping bit for tapping at the drilled hole location in a workpiece and the telescopic drive.

[0023] By adopting the above technical solution, the gantry is equipped with a Z-axis lifting module, the tool magazine base plate is equipped with an X-axis horizontal module and multiple Y-axis horizontal modules. Through multi-axis coordinated drive, the tool head assembly is provided with quasi-movement capability in three-dimensional space, improving machining flexibility and accuracy. The Z-axis lifting module drives the tool magazine base plate along the height direction, and can adjust the vertical distance between the tool head and the workpiece according to the workpiece position. The X-axis horizontal module drives each tool head assembly along the length direction of the tool magazine base plate, realizing a large range of horizontal movement of the tool head, covering the machining needs of different lateral positions of the workpiece. Multiple Y-axis horizontal modules are arranged at intervals along the X-axis, providing independent longitudinal drive for each tool head assembly, enabling each tool head to accurately adjust its position within its respective machining area to meet the machining requirements of different longitudinal parts of the workpiece. The milling cutter assembly, drill assembly, and tapping assembly are all equipped with telescopic drive components, providing independent vertical precise telescopic control for the machining actions of each tool head, further improving machining flexibility and accuracy. The telescopic drive unit can precisely extend and retract the milling cutter head, drill bit, and tapping bit in the vertical direction, flexibly adjusting the contact state with the workpiece according to different machining requirements, such as milling depth, drilling depth, and tapping depth. During milling, the telescopic drive unit can work in conjunction with the Z-axis lifting module to precisely control the feed rate of the milling cutter head, ensuring a smooth and flat milled surface; during drilling, it precisely controls the drilling depth of the drill bit, avoiding excessive or shallow penetration that could affect workpiece performance; during tapping, the stable telescopic movement ensures uniform thread pitch and meets the required depth.

[0024] Furthermore, the tool magazine mechanism includes a milling cutter head for milling workpieces, a drill bit for drilling holes, a tapping bit for tapping threads, and a conversion disc and conversion head for switching between the various tool heads; The operating platform and the tool magazine mechanism are located in the operating room, and a three-dimensional spindle for driving each tool head is provided above the operating platform in the operating room.

[0025] By adopting the above technical solution, multiple tool heads are integrated through a conversion disc, and the conversion head enables automatic tool gripping, changing, and clamping. On a single machine, the required tools are automatically switched between different processes (such as milling, drilling, and tapping) according to the machining program requirements. This avoids the tedious manual tool changing and downtime during machining, improving the machine's continuous operation capability and production efficiency. It is suitable for motor bracket products requiring multiple different machining processes. Compared to multiple independent tool head assemblies with separate drive modules, the structure is more compact, using a shared three-dimensional spindle with a convertible tool magazine (conversion disc). The three-dimensional spindle provides the final cutting motion and feed, while the conversion mechanism handles tool selection, reducing the number of moving parts and overall mass. This improves the system's dynamic response characteristics, rigidity, and positioning accuracy, while reducing equipment complexity. The three-dimensional spindle head can move in the X, Y, and Z linear directions and also has rotational capabilities, allowing the tool to approach the workpiece at a more flexible angle. Combined with the workpiece clamping and flipping mechanism for workpiece positioning, more complex spatial holes and features can be machined, enhancing the machine's machining capabilities and applicability.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. The workpiece is automatically clamped and flipped through the clamping and flipping mechanism. Combined with the multi-component integration of the tool magazine mechanism and the coordinated drive of each axis module, it forms an automated operation from workpiece positioning and process switching to multi-process processing. This reduces the intervention of human personnel in disassembly, clamping, alignment and tool changing, reduces the intensity of manual labor and safety hazards, and builds an efficient human-machine collaboration mode. 2. Multi-directional positioning using pads, positioning protrusions, positioning pins, etc., combined with the coordinated clamping of the first to third clamping blocks and the precise control of the drive components, effectively limits workpiece displacement and swaying. The cooperation between the multi-axis module and the telescopic drive components ensures the positioning and feeding accuracy of the cutter head, reduces human operation errors and positioning deviations during process transitions, and provides a reliable guarantee for the high-precision machining of the motor bracket. 3. The dual-station division enables multiple processes to be completed continuously on the same fixture. The tool magazine mechanism integrates milling, drilling, and tapping functions, reducing equipment turnover. The collaboration of various drive components and modules shortens the process changeover time, making the entire processing flow more coherent and efficient. While ensuring processing quality, it significantly improves the production efficiency of motor brackets. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of a motor bracket drilling and milling equipment according to Embodiment 1 of this application.

[0028] Figure 2 This is a schematic diagram of the overall structure of the tool magazine mechanism, gantry, and linear module in Embodiment 1 of this application.

[0029] Figure 3This is a partial structural schematic diagram of the tool magazine mechanism in Embodiment 1 of this application.

[0030] Figure 4 This is a schematic diagram of the overall structure of the clamping and flipping mechanism in Embodiment 1 of this application.

[0031] Figure 5 This is an exploded view of the structure of the clamping and flipping mechanism in Embodiment 1 of this application.

[0032] Figure 6 This is an exploded view of the structure of the clamping and flipping mechanism and mounting chuck in Embodiment 1 of this application.

[0033] Figure 7 This is a schematic diagram of the overall structure of a motor bracket drilling and milling equipment according to Embodiment 2 of this application.

[0034] Figure 8 This is a partial structural diagram of the conversion disk assembly, conversion head assembly, and three-dimensional spindle in the tool magazine mechanism of Embodiment 2 of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Operating base; 11. Operating room; 2. Clamping and tilting mechanism; 21. Mounting base plate; 22. Fixture tooling; 221. Tilting base; 222. Pad; 2221. Positioning protrusion; 223. First clamping block; 2231. First driving component; 2232. Lifting cylinder; 2233. First top support column; 224. Second clamping block; 2241. Second driving component; 2242. Second top support column; 225. Separating plate; 2251. Positioning pin; 226. Third clamping block; 2261. Third driving component; 2262. Third top support column; 23. Tilting assembly; 231. First rotating seat; 232. Second rotating seat; 233. Mounting chuck; 3. Tool magazine mechanism; 31. Milling cutter assembly; 311. Milling cutter head; 312. Telescopic drive component; 32. Drill bit assembly; 321. Drill bit; 33. Tapping head assembly; 331. Tapping head; 34. Tool magazine base plate; 35. Converter plate assembly; 351. Tool preparation station; 352. Converter station; 36. Converter head assembly; 361. Rotary lifting shaft; 362. Tool changer; 3621. First pickup position; 3622. Second pickup position; 4. Gantry; 5. Linear module; 51. Z-axis lifting module; 52. X-axis horizontal module; 53. Y-axis horizontal module; 531. First Y-axis module; 532. Second Y-axis module; 533. Third Y-axis module; 6. Three-dimensional spindle. Detailed Implementation

[0036] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1-8 Examples 1 and 2 will be used to further describe this application in detail.

[0037] Example 1 This application discloses a drilling and milling device for a motor bracket. (Refer to...) Figure 1 The motor bracket drilling and milling equipment includes an operating base 1, a clamping and tilting mechanism 2, a tool magazine mechanism 3, a gantry frame 4, and a linear module 5. The clamping and tilting mechanism 2 is located on the operating base 1 and is used to clamp the workpiece. The tool magazine mechanism 3 is used to drill and mill the workpiece. The gantry frame 4 is located on the operating base 1 and spans above the clamping and tilting mechanism 2. The linear module 5 is located on the gantry frame 4 and is used to cooperate with the tool magazine mechanism 3.

[0038] Reference Figure 2 and Figure 3 The tool magazine mechanism 3 includes a milling cutter assembly 31 for milling workpieces, a drill bit assembly 32 for drilling, and a tapping bit assembly 33 for tapping. The gantry 4 is provided with a tool magazine base plate 34 for mounting each tool head. The tool magazine base plate 34 is used to cooperate with the linear module 5 to align each tool head with the workpiece.

[0039] The linear module 5 includes a Z-axis lifting module 51, an X-axis horizontal module 52, and multiple Y-axis horizontal modules 53. The Z-axis lifting module 51 is arranged along the height direction of the gantry 4 and is used to drive the tool magazine base plate 34. The X-axis horizontal module 52 is arranged along the length direction of the bottom side of the tool magazine base plate 34 and is used to drive each tool head assembly. Multiple Y-axis horizontal modules 53 are arranged at intervals along the bottom side of the tool magazine base plate 34 along the X-axis horizontal module 52, and each Y-axis horizontal module 53 is synchronously driven by the X-axis horizontal module 52. In this embodiment, there are three Y-axis horizontal modules 53, and each tool head assembly is installed below each Y-axis horizontal module 53.

[0040] Each Y-axis horizontal module 53 is defined as a first Y-axis module 531, a second Y-axis module 532, and a third Y-axis module 533. A milling cutter assembly 31 is mounted below the first Y-axis module 531. The milling cutter assembly 31 includes a milling cutter head 311 for milling the workpiece and a telescopic drive member 312 for driving the milling cutter head 311 to extend and retract vertically. A drill assembly 32 includes a drill bit 321 for drilling holes in the workpiece and a telescopic drive member 312. In this embodiment, two sets of drill assemblies 32 are provided, each with a different diameter drill bit 321, thus enabling drilling operations for different needs. The set of drill assemblies 32 with larger drill bit diameters is mounted below the second Y-axis module 532, thus enabling drilling operations above the first workstation. The set of drill assemblies 32 with smaller drill bit diameters is mounted below the third Y-axis module 533, thus enabling drilling operations above the second workstation. The tapping assembly 33 is installed below the third Y-axis module 533. The tapping assembly 33 includes a tapping head 331 for tapping the workpiece at the opening position and a telescopic drive 312.

[0041] The gantry 4 is equipped with a Z-axis lifting module 51, and the tool magazine base plate 34 is equipped with an X-axis horizontal module 52 and multiple Y-axis horizontal modules 53. Through multi-axis coordinated drive, it provides the tool head assembly with quasi-movement capability in three-dimensional space, improving the flexibility and accuracy of machining. The Z-axis lifting module 51 drives the tool magazine base plate 34 along the height direction, and can adjust the vertical distance between the tool head and the workpiece according to the workpiece position. The X-axis horizontal module 52 drives each tool head assembly along the length direction of the tool magazine base plate 34, realizing a large range of horizontal movement of the tool head, covering the machining needs of different lateral positions of the workpiece. The multiple Y-axis horizontal modules 53 are arranged at intervals along the X-axis, providing independent longitudinal drive for each tool head assembly, enabling each tool head to accurately adjust its position within its respective machining area.

[0042] The milling cutter assembly 31, drill assembly 32, and tapping assembly 33 are all equipped with telescopic drive components 312, providing independent vertical precision telescopic control for the machining actions of each cutter head, further improving machining flexibility and accuracy. The telescopic drive component 312 can drive the milling cutter head 311, drill bit 321, and tapping head 331 to precisely extend and retract vertically, flexibly adjusting the contact state with the workpiece according to different machining process requirements, such as milling depth, drilling depth, and tapping depth. During milling, the telescopic drive component 312 can work in conjunction with the Z-axis lifting module 51 to precisely control the feed rate of the milling cutter head 311, ensuring a smooth and flat milled surface; during drilling, it precisely controls the drilling depth of the drill bit 321, avoiding excessive or shallow penetration that could affect workpiece performance; during tapping, stable telescopic movement ensures uniform thread pitch and meets the required depth.

[0043] Reference Figure 4 and Figure 5 The clamping and flipping mechanism 2 includes a mounting base plate 21, a clamping fixture 22, and a flipping assembly 23. The mounting base plate 21 is fixedly connected to the top side of the operating base 1. The clamping fixture 22 is used to clamp and position the workpiece. The flipping assembly 23 is used to flip the clamping fixture 22 so that the side of the workpiece can be flipped upward, thereby aligning the inner wall of the workpiece with the milling cutter head 311 of the tool magazine mechanism 3.

[0044] The fixture 22 includes a flipping base 221, a pad 222, a first clamping block 223, a second clamping block 224, a partition plate 225, and a third clamping block 226. The flipping base 221 is installed on the flipping assembly 23. The pad 222 is fixedly connected to the top side of the flipping base 221 and matches the shape of the workpiece. The pad 222 has a positioning protrusion 2221 fixedly connected to its top side, which matches the groove on the bottom side of the workpiece.

[0045] The first clamping block 223 is installed on the top side of the pad block 222 and is used to press the outer wall of the workpiece. The flipping base 221 is provided on the bottom side with a first driving member 2231 for cooperating with the first clamping block 223. In this embodiment, the number of the first clamping blocks 223 is preferably two and they are placed on both sides of the pad block 222. The first driving member 2231 includes a lifting cylinder 2232 fixedly connected to the bottom side of the flipping base 221 and a first support column 2233 passing through the flipping base 221 and the pad block 222 and used to support the first clamping block 223.

[0046] The second clamping block 224 is installed on the top side of the flipping base 221 and is used to press the inner wall of the workpiece. The second clamping block 224 is arranged adjacent to the pad block 222. The flipping base 221 is provided on the bottom side for cooperating with the second clamping block 224. In this embodiment, the number of second clamping blocks 224 is preferably two and they are placed on both sides. The second driving member 2241 includes a lifting cylinder 2232 fixedly connected to the bottom side of the flipping base 221 and a second support column 2242 passing through the flipping base 221 and used to support the second clamping block 224.

[0047] Combination Figure 6 The partition plate 225 is fixedly connected to the flip base 221 and located adjacent to the pad block 222. The flip base 221 is divided by the partition plate 225 into a first station for milling and drilling the front of the workpiece and a second station for drilling the side of the workpiece.

[0048] A positioning pin 2251 is vertically inserted and fixedly connected to the side of the partition plate 225 away from the pad 222. In this embodiment, there are two positioning pins 2251, both of which are used to insert into the opening of the workpiece. A third clamping block 226 is installed on the side of the partition plate 225 away from the pad 222. In this embodiment, there are preferably two third clamping blocks 226, which are located at adjacent positions of the two positioning pins 2251. The partition plate 225 is provided with a third driving member 2261 for cooperating with the third clamping block 226 on the side near the pad 222. The third driving member 2261 includes a lifting cylinder 2232 embedded and fixedly connected to the side wall of the partition plate 225 and a third supporting column 2262 inserted through the partition plate 225 for supporting the third clamping block 226.

[0049] Reference Figure 5 and Figure 6The flipping assembly 23 includes a first rotating seat 231, a second rotating seat 232, and a mounting chuck 233. Both the first rotating seat 231 and the second rotating seat 232 are fixedly connected to the mounting base 21. The first rotating seat 231 is the active rotating seat and has a driving mechanism, while the second rotating seat 232 is the driven rotating seat. The two rotating seats are located on opposite sides of the flipping base 221. Two mounting chucks 233 are symmetrically fixedly connected to the two adjacent sides of the first rotating seat 231 and the second rotating seat 232. The flipping base 221 is fixedly connected to the mounting chucks 233, thus connecting to the two rotating seats. The flipping base 221, through the first rotating seat 231 and the second rotating seat 232, lifts the workpiece and provides stable support, ensuring the workpiece maintains its upright posture accurately, guaranteeing stable flipping and correct exposure of the side position, thereby facilitating the insertion and machining of the milling cutter head 311.

[0050] The implementation principle of the motor bracket drilling and milling equipment in this application embodiment is as follows: Automated processing is achieved through the collaboration of multiple mechanisms. When the workpiece is loaded, the positioning protrusion 2221 of the pad 222 engages with the groove of the workpiece to complete the pre-positioning. The first driving component 2231 drives the first clamping block 223 from the outer wall, and the second driving component 2241 drives the second clamping block 224 from the inner wall to cooperate in pressing, achieving stable clamping at the first station. The flipping component 23 drives the flipping base 221 to stand the workpiece upright through the first and second rotating seats 232, exposing the side. The Z-axis, X-axis and first Y-axis modules 531 drive the milling cutter assembly 31 to move to the corresponding position, cooperating with the telescopic driving component 312 to complete the milling. The flipping component 23 then drives the flipping base 221 to reset the workpiece to the initial state. The second Y-axis module 532 drives the large-diameter drill bit assembly 32 to drill the front of the workpiece at the first station. The second Y-axis module 532 then drives the tapping bit assembly 33 to tap the drilled position. After the first station's operation is completed, the workpiece is manually transferred to the second station. Positioning pin 2251 is inserted into the workpiece's opening for positioning, and the third drive component 2261 drives the third clamping block 226 to clamp it. Subsequently, the third Y-axis module 533 drives the small-diameter drill bit assembly 32 to complete the side drilling. Throughout the process, each axis module precisely controls the three-dimensional movement of the drill bit, the telescopic drive component 312 adjusts the machining depth, and all drive components work together to complete clamping and releasing, achieving automated flow from positioning and flipping to multi-process machining, ensuring machining accuracy and efficiency.

[0051] Example 2 Reference Figure 7 and Figure 8 The difference between this embodiment and Embodiment 1 is that the operating base 1 and the tool magazine mechanism 3 are located inside the operating chamber 11, and a three-dimensional spindle 6 for driving each tool head is provided above the operating base 1 inside the operating chamber 11. Also, the tool magazine mechanism 3 in this embodiment is a disc-type tool magazine, and its arrangement differs from that in Embodiment 1.

[0052] The tool magazine mechanism 3 in this embodiment includes a milling cutter head 311 for milling workpieces, a drill bit 321 for drilling, a tapping bit 331 for tapping, and a conversion disc assembly 35 and a conversion head assembly 36 for converting the various tool heads.

[0053] The converter assembly 35 has a tool preparation station 351 for preparing the tool head and a conversion station 352 for cooperating with the converter head assembly 36. The converter assembly 35 is controlled by a program to move the required tool head from the tool preparation station 351 to the conversion station 352 so that the converter head assembly 36 can pick it up.

[0054] The conversion head assembly 36 includes a rotating lifting shaft 361 and a tool changer 362. The rotating lifting shaft 361 is arranged vertically on the top inner wall of the operating chamber and is located adjacent to the conversion disc assembly 35. The tool changer 362 is vertically fixedly connected to the lower end of the rotating lifting shaft 361. The tool changer 362 has a first pickup position 3621 at each end for alignment with the conversion station 352 and a second pickup position 3622 for alignment with the lower end of the three-dimensional spindle 6.

[0055] The three-dimensional spindle 6 is located adjacent to the tool changer assembly 36 and above the clamping and flipping mechanism 2. The spindle seat of the three-dimensional spindle 6 can move in the three linear directions of X, Y and Z. At the same time, the spindle head has the ability to drive the tool head to rotate, so that the tool can approach the workpiece at a flexible angle.

[0056] The implementation principle of a motor bracket drilling and milling equipment in this application embodiment is as follows: the tool changing process is completed collaboratively by the conversion disc assembly 35, the conversion head assembly 36 and the three-dimensional spindle 6. The tool changing head 362 simultaneously grabs and exchanges new and old tools through translation and rotation, thereby achieving efficient and interference-free automatic tool changing.

[0057] First, all cutting tools (such as milling cutter heads 311, drill bits 321, tapping heads 331, etc.) are pre-installed on the tool preparation station 351 of the conversion plate assembly 35. The conversion plate of the tool preparation station 351 is a rotatable disc with multiple tool holders arranged circumferentially. Each tool holder can accommodate one cutting tool, and each tool holder has a unique number. When the three-dimensional spindle 6 is in its initial position, the tool holder on the spindle is empty. When the tool changer 362 of the conversion head assembly 36 is in the standby position, neither the first pickup position 3621 nor the second pickup position 3622 holds a tool. The posture of the tool changer 362 ensures that the pickup positions at both ends completely avoid the machining area and the side tool magazine, and are in a safe position without interference.

[0058] When the CNC system executes a machining program, after a machining operation (such as milling) is completed and the next operation (such as drilling) needs to be executed, the changeover plate assembly 35 first sends the new tool to the changeover station 352. The three-dimensional spindle 6 carries the old tool and moves to the fixed tool change point. The rotating lifting shaft 361 first moves down, and then drives the tool changer 362 to rotate horizontally by 90 degrees (similar to adjusting the blowing direction of a ceiling fan). After rotation, the first pickup position 3621 of the tool changer 362 is aligned with the new tool on the side changeover station 352, and the second pickup position 3622 is aligned with the old tool below the three-dimensional spindle 6.

[0059] Rotating the lifting shaft 361 drives the tool changer 362 to move upward, causing the new and old tool heads to respectively engage in the first pickup position 3621 and the second pickup position. The first pickup position 3621 picks up the new tool from the conversion station 352, and the second pickup position 3622 picks up the old tool from the three-dimensional spindle 6. After being secured, rotating the lifting shaft 361 drives the tool changer 362 to move downward a short distance, pulling the old tool out of the spindle and removing the new tool from the conversion station.

[0060] After the tool is removed, the lifting shaft 361 is rotated to drive the tool changer 362 to rotate 180 degrees in the horizontal plane. This action causes the first pick-up position 3621, which holds the new tool, to rotate to the position of the old tool (i.e., aligned with the three-dimensional spindle 6), and the second pick-up position 3622, which holds the old tool, to rotate to the position of the new tool (i.e., aligned with the conversion station 352).

[0061] Rotating the lifting shaft 361 again drives the tool changer 362 to move upward, sending the new tool into the tool holder of the three-dimensional spindle 6 and sending the old tool back to the conversion station 352.

[0062] After the handover of the old and new tools is completed, the lifting shaft 361 drives the tool changer 362 to move downwards, detach from the tool head, rotate horizontally by 90 degrees, and then move upwards, returning to the initial standby position. The conversion disk assembly 35 rotates, moving the conversion station 352, which contains the old tool, back into the tool magazine sequence. The three-dimensional spindle 6, carrying the newly installed tool, moves to the machining start point to begin the next machining operation.

[0063] The above are all preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application. In the description of this embodiment, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Since the embodiments disclosed in this application can be set in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of these features.

Claims

1. A drilling and milling machine for a motor bracket, characterized in that: It includes an operating base (1), a clamping and flipping mechanism (2) disposed on the operating base (1) and used to clamp the workpiece, and a tool magazine mechanism (3) used to drill and mill the workpiece; The clamping and flipping mechanism (2) includes a mounting base plate (21) fixedly connected to the operating base (1), a clamping fixture (22) for clamping and positioning the workpiece, and a flipping component (23) for flipping the clamping fixture (22) so that the workpiece is aligned with the tool magazine mechanism (3).

2. The drilling and milling equipment for a motor bracket according to claim 1, characterized in that: The fixture (22) includes a flipping base (221) mounted on the flipping assembly (23), a pad (222) disposed on the top side of the flipping base (221) and matching the shape of the workpiece, a first clamping block (223) disposed on the top side of the pad (222) and used to press the outer wall of the workpiece, and a second clamping block (224) disposed on the top side of the flipping base (221) and used to press the inner wall of the workpiece. The second clamping block (224) is arranged adjacent to the pad (222).

3. The motor bracket drilling and milling equipment according to claim 2, characterized in that: The pad (222) has a positioning protrusion (2221) on its top side that matches the groove on the bottom side of the workpiece.

4. The motor bracket drilling and milling equipment according to claim 2, characterized in that: The flip base (221) is provided with a partition plate (225) at an adjacent position to the pad (222). The partition plate (225) is provided with a positioning pin (2251) for inserting into the workpiece opening on the side away from the pad (222). The flip base (221) is divided by the partition plate (225) into a first station for milling and drilling the front of the workpiece and a second station for drilling the side of the workpiece.

5. The drilling and milling equipment for a motor bracket according to claim 4, characterized in that: The partition plate (225) is provided with a third clamping block (226) for clamping the workpiece at a position adjacent to the positioning pin (2251).

6. The motor bracket drilling and milling equipment according to claim 5, characterized in that: The flip base (221) has a first driving member (2231) for cooperating with the first clamping block (223) and a second driving member (2241) for cooperating with the second clamping block (224) on its bottom side. The partition plate (225) has a third driving member (2261) for cooperating with the third clamping block (226) on the side near the pad (222).

7. A milling and drilling device for a motor bracket according to claim 2, characterized in that: The flipping assembly (23) includes a first rotating seat (231) and a second rotating seat (232) mounted on the mounting base plate (21). The first rotating seat (231) and the second rotating seat (232) are respectively located on both sides of the flipping base (221). The first rotating seat (231) and the second rotating seat (232) are respectively provided with mounting chucks (233) for connecting the flipping base (221) on their two adjacent sides.

8. The drilling and milling equipment for a motor bracket according to claim 1, characterized in that: The tool magazine mechanism (3) includes a milling cutter assembly (31) for milling a workpiece, a drill bit assembly (32) for drilling, and a tapping bit assembly (33) for tapping. The operating base (1) is provided with a gantry (4) spanning above the clamping and flipping mechanism (2). The gantry (4) is provided with a linear module (5) for cooperating with the tool magazine mechanism (3). The gantry (4) is provided with a tool magazine base plate (34) for mounting each tool head. The tool magazine base plate (34) is used to cooperate with the linear module (5) to align each tool head with the workpiece.

9. A drilling and milling equipment for a motor bracket according to claim 8, characterized in that: The gantry (4) is provided with a Z-axis lifting module (51) for driving the tool magazine base plate (34) along the height direction. The tool magazine base plate (34) is provided with an X-axis horizontal module (52) for driving each tool head assembly along the length direction on the bottom side. The tool magazine base plate (34) is provided with a plurality of Y-axis horizontal modules (53) at intervals along the X-axis horizontal modules (52) on the bottom side. Each tool head assembly is installed below each Y-axis horizontal module (53). The milling cutter assembly (31) includes a milling cutter head (311) for milling a workpiece and a telescopic drive (312) for driving the milling cutter head (311) to extend and retract in the vertical direction. The drill assembly (32) includes a drill bit (321) for drilling a hole in a workpiece and the telescopic drive (312). The tapping assembly (33) includes a tapping bit (331) for tapping at the hole location in a workpiece and the telescopic drive (312).

10. A drilling and milling equipment for a motor bracket according to claim 1, characterized in that: The tool magazine mechanism (3) includes a milling cutter head (311) for milling workpieces, a drill bit (321) for drilling, a tapping bit (331) for tapping, and a conversion disc and conversion head for converting the various tool heads. The operating base (1) and the tool magazine mechanism (3) are located in the operating room. A three-dimensional spindle (6) for driving each tool head is provided above the operating base (1) in the operating room.

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