Alarm drill mill

Abstract

The application relates to the field of drilling and milling equipment, in particular to an alarm drilling and milling equipment which comprises an operation room, an operation base, a clamping and overturning mechanism arranged on the operation base and used for clamping a workpiece, and a milling mechanism used for drilling and milling the workpiece; the clamping and overturning mechanism comprises a mounting bottom plate mounted on the operation base, a clamp tool used for clamping and positioning the workpiece, and an overturning assembly used for overturning the clamp tool so that the workpiece is aligned with the milling mechanism. The application has the effect of improving the problems of poor clamping and positioning accuracy of the workpiece and low production efficiency.

Description

Technical Field

[0001] This application relates to the field of drilling and milling equipment, and more particularly to an alarm drilling and milling device. Background Technology

[0002] The outer casing of an explosion-proof audible and visual alarm is a crucial structural and protective component. It is typically made of metal and requires multiple precision machining processes, such as milling, drilling, and tapping, to create high-precision features like mounting surfaces, cable entry holes, threaded holes, and sealing grooves. This ensures the overall structural strength, explosion-proof rating, and sealing performance of the product.

[0003] In related technologies, the alarm housing has processing features on multiple sides. The common processing method is to use a production line composed of multiple single-function machine tools such as vertical milling machines, drilling machines, and tapping machines. Operators transfer workpieces between different processes to complete the processing of different sides in sequence.

[0004] Regarding the aforementioned technologies, when workpieces require machining holes and planes 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 operator experience. The repeatability of manual positioning is poor, and alignment errors can easily lead to workpiece scrap, failing to meet the consistency requirements of mass production. Furthermore, during clamping and machining, the operator's hands frequently need to approach heavy fixtures and high-speed rotating cutting tools, posing safety hazards. Summary of the Invention

[0005] To improve the problems of poor positioning accuracy and low production efficiency caused by multiple clamping of workpieces, this application provides an alarm-equipped drilling and milling device.

[0006] The alarm drilling and milling equipment provided in this application adopts the following technical solution:

[0007] An alarm drilling and milling device includes an operating room, an operating platform, a clamping and flipping mechanism disposed on the operating platform for clamping a workpiece, and a milling mechanism for drilling and milling the workpiece.

[0008] The clamping and flipping mechanism includes a mounting base plate installed on the operating platform, 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 milling mechanism.

[0009] By adopting the above technical solutions, the equipment integrates a flipping mechanism with multi-station clamping capabilities and an automated tool magazine, enabling multi-directional and multi-process machining of workpieces after a single clamping. This eliminates the cumulative errors caused by repeated disassembly and repositioning, improves key geometric tolerances such as positional accuracy and perpendicularity between various machining features, and ensures high product precision and consistency. By reducing auxiliary time such as workpiece transfer and alignment, it improves equipment utilization and production efficiency, making it particularly suitable for mass production. The automated flipping and machining process reduces manual intervention and reliance on operator experience, further isolating the operator's hands from heavy clamps and high-speed rotating tools, avoiding potential safety risks and improving overall operational safety.

[0010] Furthermore, the fixture includes a flipping base and a fixed upright plate installed on the flipping assembly. The flipping base has a first station, a second station for horizontal arrangement of the workpiece, and a third station for vertical arrangement of the workpiece. The first station, the second station, and the third station are arranged sequentially. The fixed upright plate is arranged vertically and fixedly connected to the third station of the flipping base.

[0011] By adopting the above technical solution, and using an integrated flipping base to set up the first, second, and third horizontal stations, a single fixture can accurately position and quickly switch between multiple machining postures of the workpiece. This multi-station integration allows the workpiece to be sequentially positioned in various machining postures—horizontally upward, horizontally downward, and vertically—after a single clamping, driven by the flipping component. This eliminates the need to change fixtures, meeting the all-around machining needs of the drilling and milling equipment for the top, bottom, and sides of the workpiece, ensuring positional accuracy between different machining surfaces, and eliminating cumulative errors caused by multiple clampings. The fixed upright plate, fixed to the third station, provides a stable and reliable reference and support for the vertical machining of the workpiece, effectively resisting cutting forces during drilling and milling, preventing workpiece vibration or displacement, and reducing auxiliary time during machining. This improves the efficiency of continuous equipment operation and is key to achieving high-precision, automated mass production.

[0012] Furthermore, the flip base 521 has a placement groove at the first work station that matches the shape of the workpiece, and the flip base 521 has an open through groove in the placement groove that communicates with the placement groove. The inner diameter of the open through groove is smaller than the inner diameter of the placement groove, thereby forming a protruding edge on the inner wall of the flip base 521 that supports the workpiece.

[0013] By adopting the above technical solution, the combination of the placement slot and the open through slot forms a contour jig with precise positioning and stable support functions. The placement slot, which matches the shape of the workpiece, can initially limit the circumferential positioning of the workpiece, ensuring the consistency and accuracy of the placement position. The open through slot with a smaller inner diameter connects to the bottom of the placement slot, forming an annular convex edge at the junction. The convex edge structure can accurately support the bottom edge of the workpiece, keeping the workpiece in a stable suspended state. This not only quickly positions the workpiece but also avoids the cumbersome adjustments and accumulated errors caused by using multiple dispersed positioning blocks. It also provides unobstructed operating space for tool processing, ensuring that drill bits or milling cutters can reach into the workpiece without interfering with the jig when machining through holes or cavities, improving the processing efficiency and quality of the first station.

[0014] Furthermore, the flip base 521 is provided with a first pressing block for pressing the top side of the workpiece at the first station near the second station, and the flip base 521 is vertically inserted and rotatably connected with a first connecting pin for installing the first pressing block.

[0015] By adopting the above technical solution, the rotatable first pressure block cooperates with the first connecting pin to achieve rapid clamping and release of the workpiece at the first station. The first connecting pin is vertically inserted and rotatably connected to the flip base 521, providing a rotation fulcrum for the first pressure block. This allows the pressure block to be manually rotated to the open or clamping position, simplifying the clamping operation, saving auxiliary time, and improving production efficiency. When the first pressure block rotates to the top side of the workpiece, it can form a stable clamping force together with the protrusion in the placement groove below, preventing the workpiece from shifting or vibrating during drilling and milling, ensuring the accuracy and stability of the machining.

[0016] Furthermore, the flip base 521 is provided with a limiting block in the placement groove, and a limiting pin for abutting against the side wall of the workpiece is inserted through and slidably connected on the limiting block.

[0017] By adopting the above technical solution, the adjustable sliding limit pin cooperates with the fixed limit block to provide reliable circumferential positioning and anti-rotation protection for the workpiece in the horizontal plane. The limit block is fixed in the placement groove, providing a stable mounting base and sufficient rigid support for the limit pin, effectively resisting the lateral cutting forces generated during processing. According to the specific dimensions of the workpiece, the limit pin can be manually slid so that its end abuts against the side wall of the workpiece, eliminating any slight movement or rotation that may occur due to radial clearance of the workpiece in the placement groove, ensuring the angular positioning accuracy of the workpiece in the circumferential direction.

[0018] Furthermore, the flipping base 521 is fixedly connected to a limiting base plate that abuts against the inner wall of the workpiece at the second work station. The limiting base plate is provided with a second pressing block on the top side of the workpiece at the top. The limiting base plate is vertically inserted and slidably connected with a second connecting pin for installing the second pressing block at the middle position.

[0019] By adopting the above technical solution, the limiting chassis and the liftable pressure block cooperate to achieve precise positioning and efficient clamping of the workpiece. The limiting chassis, fixedly connected to the flip base 521, abuts against the inner wall of the workpiece with its outer circumferential surface, realizing automatic centering and radially precise positioning of the workpiece from the inside, ensuring the uniformity of the processing datum. The second pressure block, installed on the second connecting pin, slides vertically with the connecting pin to achieve the lifting function. When pressed down, it forms an axial clamping force together with the lower limiting chassis, pressing the workpiece between them, resisting the vibration and torsional torque generated by drilling and milling, and ensuring the stability of the processing process and the accuracy of the hole position. The release or locking of the workpiece can be completed by simple sliding, shortening the station changeover time.

[0020] Furthermore, the flip base 521 is fixedly connected to a limiting seat for cooperating with the second pressing block at an adjacent position of the limiting base. The limiting seat has a limiting slot on its top side for the second pressing block to be inserted into, and the limiting seat has guide slopes on the two opposite inner walls of the limiting slot for guiding the second pressing block to be inserted into.

[0021] By adopting the above technical solution, the limiting groove with guide slope cooperates with the second pressure block to provide a stable mechanical safety for locking in the clamping state. When the second pressure block is pressed down, its bottom side clamps with the top of the workpiece. At this time, the end of the second pressure block engages in the limiting groove of the limiting seat. The guide slopes on both sides of the groove can automatically correct minor positional deviations of the second pressure block, guiding it to slide smoothly and accurately into place, making the locking action quick and easy. After the second pressure block engages in the groove, the limiting seat can effectively restrict its accidental movement in the horizontal and vertical directions, locking the second pressure block in the clamping position and enhancing the reliability and stability of the clamping system when subjected to vibrations and impacts from drilling and milling.

[0022] Furthermore, the flip base has a groove for the limiting base portion to be inserted.

[0023] By adopting the above technical solution, the embedded groove and the limiting base are properly engaged, improving the overall rigidity and connection stability of the entire positioning and clamping system at the second station. The groove provides a positioning base and additional circumferential constraint for the limiting base. When the limiting base is partially embedded, a large surface contact is formed between the two, increasing the friction of the mating surfaces and effectively resisting the torsional torque generated during cutting. This prevents the limiting base from making slight movements or wobbling relative to the flipping base, ensuring the stability of the machining process.

[0024] Furthermore, the fixed upright plate is installed on the side of the third workstation away from the second workstation, the fixed upright plate has a positioning slot for the workpiece to be inserted, and the fixed upright plate is rotatably connected to a third pressing block for pressing the edge of the workpiece on the side closer to the second workstation.

[0025] By adopting the above technical solution, the positioning through groove and the rotatable clamping block cooperate to provide fast and reliable positioning and clamping for workpiece processing in a vertical state. The fixed plate is set at the third station, providing a stable vertical reference surface for the vertically placed workpiece. The positioning through groove can cooperate with the contour or edge of the workpiece to achieve rapid pre-positioning and circumferential constraint of the workpiece, ensuring that the workpiece maintains the correct posture during vertical processing. The third clamping block, which is rotatably connected to the fixed plate, can be quickly rotated to the edge of the workpiece and clamping force can be applied through a simple manual rotation action. Together with the positioning through groove, it forms a stable clamping. When loading and unloading the workpiece, the clamping block can be rotated open to completely free up the operating space, simplifying the clamping process and shortening the auxiliary time.

[0026] Furthermore, the flipping base 521 is provided with a support block for contacting the workpiece at an adjacent position on the side of the fixed upright plate near the second work station.

[0027] By adopting the above technical solution, the support block can provide a stable auxiliary support point for the workpiece in a vertical position, enhancing the overall rigidity and vibration resistance of the workpiece during vertical machining. After the workpiece is inserted into the positioning slot of the fixed plate, the support block provides auxiliary support from the side of the workpiece, forming a multi-point support together with the fixed plate. This improves the stress state of the workpiece, resists the huge lateral cutting force generated during drilling and milling, and prevents the workpiece from bending or deforming or vibrating at high frequency due to excessive overhang or insufficient rigidity, thereby ensuring the accuracy and surface quality of the sidewall milling.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] By integrating a multi-station clamping and flipping mechanism, the workpiece can be fully machined from top, bottom and side surfaces in a single clamping operation, eliminating the cumulative errors caused by multiple clamping and repositioning, ensuring key geometric tolerances such as position and perpendicularity between various machining features, and ensuring high product precision and batch consistency.

[0030] Automated flipping and tool magazine integration enable continuous multi-process machining, reducing auxiliary time required for workpiece transfer, loading / unloading, and alignment between different machine tools. Multi-station integrated fixtures allow the equipment to quickly adapt to different workpiece machining postures, improving equipment utilization and production cycle time, making it suitable for mass production.

[0031] The entire machining process is completed in a closed operating room. Automated mechanisms reduce reliance on operator experience and frequent manual intervention during clamping, effectively isolating the machine from heavy fixtures and high-speed rotating cutting tools, thus reducing safety hazards. Meanwhile, dedicated contour positioning at each station, lockable clamping mechanisms, and reinforced embedded designs ensure stable and reliable machining, strong vibration resistance, and prevent machining failures caused by workpiece displacement or vibration. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of an alarm drilling and milling device according to an embodiment of this application.

[0033] Figure 2 This is a schematic diagram of the structure of the first workpiece and the second workpiece in the embodiments of this application.

[0034] Figure 3 This is an exploded view of the structure of the operating base, horizontal moving mechanism and clamping and flipping mechanism in the embodiments of this application.

[0035] Figure 4 This is a schematic diagram of the overall structure of the clamping and flipping mechanism in the embodiments of this application.

[0036] Figure 5 This is a schematic diagram of the overall structure of the mounting base plate and fixture in the embodiments of this application.

[0037] Figure 6 This is an exploded view of the mounting base plate and fixture in the embodiments of this application.

[0038] Figure 7 This is a partial structural schematic diagram of the milling mechanism in the embodiments of this application.

[0039] Explanation of reference numerals in the attached drawings: 1. First workpiece; 11. Protruding pile; 2. Second workpiece; 3. Operating room; 4. Operating platform; 5. Clamping and flipping mechanism; 51. Mounting base plate; 52. Fixture tooling; 521. Flipping base; 5211. First station; 5212. Second station; 5213. Third station; 5214. Placement slot; 5215. Open through slot; 5216. Protruding edge; 522. Fixed upright plate; 5221. Positioning through slot; 5222. Third pressure block; 5223. Support block; 523. First pressure block; 5231. First connecting pin; 524. Limiting block; 5241. Limiting pin 525. Limiting base; 5251. Insert groove; 526. Second pressure block; 5261. Second connecting pin; 527. Limiting seat; 5271. Limiting slot; 5272. Guide slope; 53. Tilting assembly; 6. Horizontal moving mechanism; 61. X-axis drive assembly; 62. Y-axis drive assembly; 63. Waterproof cover; 7. Milling mechanism; 71. Disc-type tool magazine; 711. Milling cutter head; 712. Drill bit; 713. Converter disc assembly; 7131. Tool preparation station; 7132. Converter station; 714. Converter head assembly; 7141. Rotary lifting shaft; 7142. Tool changer; 72. Spindle. Detailed Implementation

[0040] To make the purpose, technical solution, and advantages of this application clearer, the following description is provided in conjunction with the appendix. Figure 1-7 The present application will be further described in detail with reference to the embodiments.

[0041] This application discloses a drilling and milling device for an alarm. (Refer to...) Figure 1 and Figure 2 In this embodiment, the drilling and milling equipment can simultaneously process the first workpiece 1 and the second workpiece 2. The outer and inner walls of the first workpiece 1 each have a plurality of protrusions 11 to be milled, and the outer wall of the second workpiece 2 has a plurality of circumferentially arranged drilling points at the top edge position.

[0042] The alarm-equipped milling and drilling equipment includes an operating chamber 3, an operating base 4, a clamping and tilting mechanism 5, a horizontal moving mechanism 6, and a milling mechanism 7. The operating chamber 3 provides space for the overall machining process of the workpiece. The operating base 4 is located inside the operating chamber 3. The clamping and tilting mechanism 5 is located on the operating base 4 and is used to clamp the workpiece. The milling mechanism 7 is used to perform drilling and milling on the workpiece. The horizontal moving mechanism 6 is located on the operating base 4 and is used to drive the clamping and tilting mechanism 5 to translate along the X and Y axes, thereby aligning the workpiece with the tool head of the tool magazine.

[0043] Reference Figure 3 The horizontal moving mechanism 6 includes two sets of parallel X-axis drive components 61 and two sets of parallel Y-axis drive components 62. In this embodiment, the drive components are preferably motor lead screws with relatively stable driving force, and each motor lead screw is provided with a waterproof cover 63 on its upper side.

[0044] The clamping and flipping mechanism 5 is installed on the top side of the waterproof cover 63. The clamping and flipping mechanism 5 includes a mounting base plate 51 and a clamping fixture 52. The mounting base plate 51 is fixedly connected to the top side of the waterproof cover 63. The clamping fixture 52 is used to clamp and position the workpiece. The flipping assembly 53 is used to flip the clamping fixture 52.

[0045] Reference Figure 4 and Figure 5 The fixture 52 includes a tilting base 521 and a fixed upright plate 522. The tilting base 521 is mounted on the tilting assembly 53 and is driven by the tilting assembly 53 to align the workpiece's machining point with the milling mechanism 7. The tilting base 521 has a first station 5211 for horizontal workpiece arrangement, a second station 5212 for vertical workpiece arrangement, and a third station 5213 for vertical workpiece arrangement. The first station 5211, the second station 5212, and the third station 5213 are arranged sequentially, and the fixed upright plate 522 is vertically arranged and fixedly connected to the third station 5213 of the tilting base 521.

[0046] The flip base 521 has a placement groove 5214 at the first station 5211 that matches the shape of the workpiece. An open channel 5215 communicating with the placement groove 5214 is also provided in the flip base 5211. The inner diameter of the open channel 5215 is smaller than the inner diameter of the placement groove 5214, thus forming a protruding edge 5216 on the inner wall of the flip base 521 to support the workpiece. At the first station 5211 near the second station 5212, the flip base 521 has a first pressing block 523 for pressing the top side of the workpiece. A first connecting pin 5231 for mounting the first pressing block 523 is vertically inserted and rotatably connected to the flip base 521. A limiting block 524 is provided in the placement groove 5214 of the flip base 521. A limiting pin 5241 for abutting against the side wall of the workpiece is inserted and slidably connected to the limiting block 524.

[0047] Reference Figure 5 and Figure 6 A limiting base 525, which abuts against the inner wall of the workpiece, is fixedly connected to the flip base 521 at the second station 5212. The flip base 521 has a groove 5251 for partially embedding the limiting base 525. A second pressing block 526 for pressing the top side of the workpiece is provided on the upper part of the limiting base 525. A second connecting pin 5261 for installing the second pressing block 526 is vertically inserted and slidably connected to the limiting base 525 at its middle position. A limiting seat 527 for cooperating with the second pressing block 526 is fixedly connected to the flip base 521 at an adjacent position to the limiting base 525. The limiting seat 527 has a limiting slot 5271 on its top side for the second pressing block 526 to be engaged. The limiting seat 527 has guide slopes 5272 on its two opposite inner walls of the limiting slot 5271 for guiding the second pressing block 526 to be engaged.

[0048] A fixed upright plate 522 is installed on the side of the third station 5213 away from the second station 5212. The fixed upright plate 522 has a positioning slot 5221 for the workpiece to be inserted. A third pressing block 5222 for pressing the edge of the workpiece is rotatably connected to the fixed upright plate 522 near the second station 5212. The flip base 521 has a support block 5223 for abutting the workpiece at an adjacent position on the side of the fixed upright plate 522 near the second station 5212.

[0049] Reference Figure 7 The milling mechanism 7 is located inside the operating chamber 3 and above the operating platform 4. The milling mechanism 7 includes a disc-type tool magazine 71 for providing different cutting heads and a spindle 72 for driving each cutting head along the Z-axis (height) direction. The disc-type tool magazine 71 includes a milling cutter head 711 for milling workpieces, a drill bit 712 for drilling, and a conversion disc assembly 713 and a conversion head assembly 714 for switching between cutting heads.

[0050] The converter assembly 713 has a tool preparation station 7131 for preparing the tool head and a conversion station 7132 for cooperating with the converter head assembly 714. The converter assembly 713 is controlled by a program to move the required tool head from the tool preparation station 7131 to the conversion station 7132 so that the converter head assembly 714 can pick it up.

[0051] The conversion head assembly 714 includes a rotating lifting shaft 7141 and a tool changer 7142. The rotating lifting shaft 7141 is arranged vertically on the top inner wall of the operating chamber 3, and is located adjacent to the conversion disc assembly 713. The tool changer 7142 is vertically fixedly connected to the lower end of the rotating lifting shaft 7141. The tool changer 7142 has a first pickup position at each end for alignment with the conversion station 7132 and a second pickup position for alignment with the lower end of the spindle 72.

[0052] The spindle 72 is located adjacent to the tool changer 7142 assembly and above the clamping and flipping mechanism 5. The spindle 72 can move linearly along the Z-axis and has the ability to drive the tool head to rotate.

[0053] The implementation principle of the motor bracket drilling and milling equipment in this application embodiment is as follows: The operator sequentially mounts two first workpieces 1 and one second workpiece 2 onto three specific stations of the flip base 521. The first station 5211 achieves precise horizontal positioning and clamping of the first workpiece 1 through a contour placement groove 5214, a raised edge 5216, an adjustable limit pin 5241, and a rotating pressure block. The second station 5212 utilizes the internal support embedded in the chassis, a liftable pressure block, and a limit seat 527 with a guide slope 5272 to achieve rapid centering and secure locking of the second workpiece 2. The third station 5213 ensures stable clamping of the first workpiece 1 in a vertical position through the positioning through groove 5221 of the fixed upright plate 522, the rotating pressure block, and the auxiliary support block 5223.

[0054] After clamping, the flipping assembly 53 drives the entire fixture 52 to flip precisely, so that the surface to be machined (horizontally upward, horizontally downward, or vertical side) is accurately facing the tool magazine spindle 72. The horizontal moving mechanism 6 (X / Y axis motor lead screw) drives the clamping and flipping mechanism 5 to move in the horizontal plane, precisely aligning the feature points to be machined on the workpiece with the tool on the spindle 72.

[0055] The tool changing process is completed in concert by the change plate assembly 713, the change head assembly 714 and the spindle 72. The tool changing head 7142 simultaneously grabs and exchanges new and old tools through translation and rotation, achieving efficient and interference-free automatic tool changing.

[0056] First, all cutting tools (such as milling cutter heads 711, drill bits 712, tapping heads, etc.) are pre-installed on the tool preparation station 7131 of the changeover plate assembly 713. The changeover plate of the tool preparation station 7131 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 spindle 72 is in the initial position, the tool holder on the spindle 72 is empty. When the tool changer 7142 of the changeover head assembly 714 is in the standby position, neither the first pickup position nor the second pickup position holds a tool. The posture of the tool changer 7142 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.

[0057] 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 713 first sends the new tool to the changeover station 7132. The spindle 72 carries the old tool and moves to the fixed tool change point. The lifting shaft 7141 first moves down, and then drives the tool changer 7142 to rotate horizontally by 90 degrees (similar to adjusting the blowing direction of a ceiling fan). After rotation, the first pickup position of the tool changer 7142 is aligned with the new tool head on the side changeover station 7132, and the second pickup position is aligned with the old tool head below the spindle 72.

[0058] Rotating the lifting shaft 7141 drives the tool changer 7142 to move upward, causing the new and old tool heads to respectively engage in the first and second pick-up positions. The first pick-up position picks up the new tool from the conversion station 7132, and the second pick-up position picks up the old tool from the spindle 72. After being secured, rotating the lifting shaft 7141 drives the tool changer 7142 to move downward a short distance, pulling the old tool out of the spindle 72 and removing the new tool from the conversion station 7132.

[0059] After the tool is removed, the lifting shaft 7141 is rotated to drive the tool changer 7142 to rotate in the horizontal plane. This action causes the first pickup position holding the new tool to rotate to the position of the old tool (i.e., aligned with the spindle 72), and the second pickup position holding the old tool to rotate to the position of the new tool (i.e., aligned with the changeover position 7132).

[0060] Rotating the lifting shaft 7141 drives the tool changer 7142 to move upward again, feeding the new tool into the tool holder of the spindle 72 and sending the old tool back to the conversion station 7132.

[0061] After the handover of the old and new tools is completed, the lifting shaft 7141 drives the tool changer 7142 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 tray assembly 713 rotates, moving the conversion station 7132, which contains the old tool, back into the tool magazine sequence. The spindle 72, carrying the newly installed tool, moves to the machining start point to begin the next machining operation.

[0062] The entire machining process requires no workpiece disassembly. Through automated flipping, moving, and tool changing, the equipment continuously completes the machining features in all directions of the workpiece. This fundamentally eliminates positioning errors from multiple clamping operations, ensuring high-precision geometric tolerances between machined surfaces. Simultaneously, it significantly reduces auxiliary time, improves production efficiency and automation, and effectively reduces the safety risks associated with manual 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 in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A drilling and milling device for an alarm, characterized in that: It includes an operating room (3), an operating base (4), a clamping and flipping mechanism (5) disposed on the operating base (4) and used for clamping the workpiece, and a milling mechanism (7) used for drilling and milling the workpiece. The clamping and flipping mechanism (5) includes a mounting base plate (51) mounted on the operating base (4), a clamping fixture (52) for clamping and positioning the workpiece, and a flipping component (53) for flipping the clamping fixture (52) so that the workpiece is aligned with the milling mechanism (7). The fixture (52) includes a flipping base (521) and a fixed plate (522) installed on the flipping assembly (53). The flipping base (521) has a first station (5211) for horizontal arrangement of the workpiece, a second station (5212) for horizontal arrangement of the workpiece, and a third station (5213) for vertical arrangement of the workpiece. The first station (5211), the second station (5212) and the third station (5213) are arranged in sequence. The fixed plate (522) is arranged vertically and fixedly connected to the third station (5213) of the flipping base (521). The flip base (521) has a placement groove (5214) at the first station (5211) that matches the shape of the workpiece. The flip base (521) has an open through groove (5215) in the placement groove (5214) that communicates with the placement groove (5214). The inner diameter of the open through groove (5215) is smaller than the inner diameter of the placement groove (5214), thereby forming a protruding edge (5216) on the inner wall of the flip base (521) to support the workpiece. The flip base (521) is fixedly connected to the limiting base (525) at the second work station (5212) and abuts against the inner wall of the workpiece. The limiting base (525) is provided with a second pressing block (526) on the top of the workpiece. The limiting base (525) is vertically inserted and slidably connected with a second connecting pin (5261) for installing the second pressing block (526) at the middle position. The flip base (521) is fixedly connected to a limiting seat (527) for cooperating with the second pressing block (526) at an adjacent position of the limiting base (525). The limiting seat (527) has a limiting slot (5271) on its top side for the second pressing block (526) to be inserted into. The limiting seat (527) has guide slopes (5272) on two opposite inner walls of the limiting slot (5271) for guiding the second pressing block (526) to be inserted into.

2. The alarm drilling and milling equipment according to claim 1, characterized in that: The flip base (521) is provided with a first pressing block (523) for pressing the top side of the workpiece at the first station (5211) near the second station (5212). The flip base (521) is vertically inserted and rotatably connected with a first connecting pin (5231) for installing the first pressing block (523).

3. The alarm drilling and milling equipment according to claim 1, characterized in that: The flip base (521) is provided with a limiting block (524) in the placement groove (5214), and a limiting pin (5241) for abutting against the side wall of the workpiece is provided and slidably connected on the limiting block (524).

4. The alarm drilling and milling equipment according to claim 1, characterized in that: The flip base (521) has a groove (5251) for the limiting base (525) to be partially inserted.

5. The alarm drilling and milling equipment according to claim 1, characterized in that: The fixed plate (522) is installed on the side of the third station (5213) away from the second station (5212). The fixed plate (522) has a positioning slot (5221) for inserting the workpiece. The fixed plate (522) is rotatably connected to a third pressing block (5222) for pressing the edge of the workpiece on the side of the fixed plate (5212) near the second station (5212).

6. The alarm drilling and milling equipment according to claim 5, characterized in that: The flip base (521) is provided with a support block (5223) for abutting the workpiece at an adjacent position on the side of the fixed upright plate (522) near the second work station (5212).

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