Computer hard disk bracket machining device and method

Abstract

The invention discloses a computer hard disk bracket machining device and method, and particularly relates to the technical field of computer hard disk bracket machining, the computer hard disk bracket machining device comprises a rack, a three-axis module is arranged in the rack, a mounting seat is arranged on the three-axis module, a clamping assembly is arranged on the mounting seat, and a drill bit assembly is arranged on the clamping assembly; the drill bit assembly comprises a drill bit base, a grinding sleeve, a drilling drill bit sleeve, a locking cover and a center shaft. The center shaft is installed in the middle of the top end of the drill bit seat, a drilling drill bit sleeve is inserted into the center shaft, and the ruler diameter of the drilling drill bit sleeve is gradually increased from bottom to top to form a multi-stage drilling structure. Polishing sleeves are arranged between the drill bit seats and the drilling drill bit sleeves and between the drill bit seats and the drilling drill bit sleeves, the polishing sleeves are inserted into the center shaft, the ruler diameters of the polishing sleeves are gradually increased from bottom to top, the polishing sleeves are matched with the corresponding drill bit seats / drilling drill bit sleeves in size, and a multi-stage polishing structure is formed. By means of the drill bit assembly integrating the multi-stage drilling drill bit sleeve and the grinding sleeve matched with the multi-stage drilling drill bit sleeve in size, the single-hole machining and grinding efficiency is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of computer hard disk tray processing technology, specifically to a computer hard disk tray processing apparatus and method. Background Technology

[0002] A computer hard drive bracket is an auxiliary accessory used to install computer hard drives inside a computer case. It secures one or more hard drives within the case. During manufacturing, holes are drilled in the hard drive bracket to connect it to the computer case and the hard drive itself. Currently, drilling and hole wall grinding are typically done separately. First, basic holes are drilled into the material. Then, the workpiece is transferred to specialized grinding equipment or manually to grind the hole walls, removing burrs and flash and improving surface roughness. This separate process has two drawbacks: first, the secondary clamping process consumes a significant amount of time, extending the processing cycle of individual workpieces and reducing production efficiency; second, the secondary clamping process inevitably involves… Positioning errors can occur, causing deviations between the ground holes and the initial drilled positions, affecting the coaxiality and perpendicularity of the holes and reducing product assembly accuracy. Furthermore, different specifications of computer hard drives require different diameter connecting holes for their corresponding hard drive brackets. Even hard drive brackets of the same specification may require different hole sizes due to different installation positions (such as corner fixing holes or center positioning holes). When different hole diameters need to be machined, operators need to frequently change drill bits, which is not only cumbersome and increases labor intensity, but also requires re-positioning the drill bit during the replacement process, further extending processing time. Therefore, we propose a computer hard drive bracket processing device and method to solve the above problems. Summary of the Invention

[0003] The purpose of this invention is to provide a computer hard disk tray processing apparatus and method to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a computer hard disk tray processing device, including a frame, a three-axis module is provided inside the frame, a mounting base is provided on the three-axis module, a clamping assembly is provided on the mounting base, a drill bit assembly is clamped on the clamping assembly, and the drill bit assembly includes a drill bit seat, a grinding sleeve, a drilling drill bit sleeve, a locking cover, and a central spindle; The central shaft is installed in the middle of the top of the drill bit holder, and several drilling bit sleeves are inserted on the central shaft. The diameter of the drilling bit sleeves gradually increases from bottom to top, forming a multi-stage drilling structure. A grinding sleeve is provided between the drill bit holder, the drill bit sleeve, and the drill bit sleeve. The grinding sleeve is inserted on the central shaft. The diameter of the grinding sleeve gradually increases from bottom to top and matches the size of the corresponding drill bit holder / drill bit sleeve, forming a multi-stage grinding structure. A locking cap is inserted into the top of the central shaft. The bottom of the locking cap abuts against the topmost grinding sleeve. The top of the locking cap and its outer circumferential surface are both connected to the central shaft by bolts.

[0005] Preferably, a guide rod is vertically slidably connected to the bottom of the mounting base, and a splash guard is installed at the bottom end of the guide rod; The bottom of the splash guard contacts the plate before the drill bit seat, and the center of the top of the splash guard has an opening, through which the drill bit assembly contacts the plate to drill a hole. The top circumferential surface of the inner side of the splash guard is provided with a chip suction head, and a chip suction mechanism is connected to the outside of the chip suction head.

[0006] Preferably, a spring is fitted on the guide rod, with the top end of the spring abutting against the bottom of the mounting base and the bottom end of the spring abutting against the top of the splash guard.

[0007] Preferably, the chip suction mechanism includes a chip suction pipe, a bidirectional fan, a chip collection bin, and a T-junction pipe; The chip suction pipe is connected to the outside of the splash guard and is in communication with the chip suction trough head; One end of the chip suction pipe is connected to the air inlet of the bidirectional fan, and the air outlet of the bidirectional fan is connected to a three-way pipe. The three-way pipe is connected to the chip collection bin, and a reversing valve is installed on the three-way pipe for one-way connection to the outside or the chip collection bin.

[0008] Preferably, the clamping assembly includes a clamping seat, an airway seat, grippers, an air tube, and an air pump; The clamping seat is rotatably connected to the mounting seat, and the bottom end of the clamping seat protrudes from the bottom of the mounting seat. A clamping hole is provided in the middle of the bottom end of the clamping seat, and an air cavity is provided circumferentially on the inner wall of the clamping hole. The gripper is slidably connected inside the air chamber, and the gripper can extend from the air chamber into the clamping hole to clamp the locking cover; The top of the clamping seat is rotatably connected to an air passage seat, and the bottom of the air passage seat is provided with an annular air passage. The air cavity is connected to the air passage. The trachea is connected to the top of the airway seat and communicates with the airway. The trachea is also connected to the air pump.

[0009] Preferably, the top of the mounting base is fitted with an outer shell, and a support frame is provided inside the outer shell, with the air pump mounted on top of the support frame; The airway seat is bolted to the outer shell; The top of the outer shell is equipped with a motor three, and the output shaft of the motor three is connected to the top of the clamping seat.

[0010] Preferably, the three-axis module includes an X-axis axial movement component, a Y-axis axial movement component, and a Z-axis axial movement component; The X-axis axial movement assembly includes an X-axis guide rail, a lead screw, and a motor. The X-axis guide rail is mounted on the frame, the lead screw is rotatably connected inside the X-axis guide rail, and the motor is mounted at the end of the X-axis guide rail and connected to the end of the lead screw. The two ends of the Y-axis axial moving component are slidably connected to the X-axis guide rail and threadedly connected to the lead screw.

[0011] Preferably, the Y-axis axial movement assembly includes a Y-axis mounting bracket, a Y-axis guide rail, an internal threaded bracket, a second lead screw, a second motor, and a support platform; The Y-axis guide rail is installed on one side of the Y-axis mounting bracket, the second lead screw is rotatably connected to one side of the Y-axis mounting bracket and is arranged parallel to the Y-axis guide rail, the internal thread bracket is installed at both ends of the Y-axis mounting bracket, the second motor is installed at one end of the Y-axis mounting bracket, and the support is installed on the other side of the Y-axis mounting bracket; The internal threaded brackets are slidably connected in the X-axis guide rail and are threadedly connected to the lead screw. The output shaft of the second motor is connected to the end of the second lead screw; The bidirectional fan and the chip collection bin are both installed on the top of the support platform; The Z-axis axial movement component is slidably connected to the Y-axis guide rail and is threadedly connected to the lead screw.

[0012] Preferably, the Z-axis axial movement assembly includes a Z-axis mounting bracket and a rod-driven cylinder; The rod-driven cylinder is mounted on top of the Z-axis mounting bracket; The mounting base is slidably connected to one side of the Z-axis mounting bracket; The output end of the rod cylinder is connected to the mounting base; The other side of the Z-axis mounting bracket is slidably connected to the Y-axis guide rail and is threadedly connected to the lead screw.

[0013] A method of using a computer hard disk tray processing device includes the following steps: Step 1: Use a special clamp to fix the hard drive tray plate to be processed onto the worktable of the rack. Step 2: Based on the final hole diameter, stepped hole type and depth required for this processing task, select or pre-assemble the corresponding drill bit assembly. Insert the locking cap of the assembled drill bit assembly into the clamping hole at the bottom of the clamping seat until it is in place, and use an air pump to drive the jaws to clamp the drill bit assembly. Step 3: According to the processing program, first drive the three-axis module to move the drill bit assembly directly above the X and Y coordinates of the hole to be processed. Then, control the rod cylinder to descend. During this process, the bottom edge of the splash guard first contacts the surface of the workpiece plate and presses it tightly. As the rod cylinder continues to advance, the drill bit assembly moves downward. Through the multi-stage drilling structure and multi-stage grinding structure of the drill bit assembly, drilling and grinding of different hole diameters are completed. Step 4: During the drilling process, the metal chips generated are confined within the space enclosed by the splash guard. The continuous negative pressure generated by the chip suction mechanism draws the air and chip mixture that permeates the splash guard through the chip suction trough head and sends it to the chip collection bin. Step 5: After drilling and grinding are completed, the rod cylinder controls the drill bit assembly to start retracting. During the retraction process, the chip suction mechanism continues to work, which can further suck up the small amount of tiny debris that may remain at the bottom of the hole or adhere to the surface of the drill bit, ensuring that the hole is clean. When the drill bit assembly is completely withdrawn from the workpiece, and the splash guard follows the spring to its lowest position (detached from the workpiece surface), the material is discharged. Step 6: After the material feeding is completed, briefly switch the control valve to make the bidirectional fan blow air in the opposite direction (or switch the airflow direction) to briefly back-blow the chip suction pipe, splash guard, and inside the drill bit assembly to remove any flocculent debris that may be adhering to them.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This computer hard disk tray processing device integrates a multi-stage drilling bit sleeve and a matching grinding sleeve into a single drill assembly. This assembly is connected in series via a central shaft and axially locked by a locking cover. During processing, driving the drill assembly once allows for continuous step hole processing from pre-drilling to the final hole diameter using the progressively larger drilling bit sleeves from bottom to top. Simultaneously, the grinding sleeves between each drilling bit sleeve can instantly grind and deburr the hole wall processed by the previous stage. This integrated design combines drilling and finishing processes, avoiding multiple tool changes and repetitive positioning, and greatly improving the efficiency of single-hole processing.

[0015] 2. This computer hard drive tray processing device features a splash guard that is elastically connected to the mounting base (via springs and guide rods). The bottom of the splash guard contacts the workpiece before the drill bit. Before drilling, the splash guard, under the action of the springs, presses against the workpiece surface, forming a partially enclosed space. This space is connected to a chip suction mechanism consisting of a chip suction pipe, a bidirectional fan, and a chip collection bin via a chip suction trough. During processing, the generated chips are confined within this enclosed space and immediately drawn away by the negative pressure airflow generated by the chip suction mechanism, collected in the chip collection bin via pipes. This design not only effectively prevents chip splashing and protects the working environment but also enables real-time, online collection of processing chips, ensuring the cleanliness of the processing area and workpiece surface, reducing subsequent cleaning work, improving product cleanliness and first-pass yield, and avoiding the potential impact of chips on processing accuracy and equipment lifespan. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the present invention.

[0018] Figure 2 This is a schematic diagram of the X-axis axial movement component connection in this invention; Figure 3 This is a schematic diagram of the Y-axis axial movement component connection in this invention; Figure 4 This is a schematic diagram of the bidirectional fan connection structure in this invention; Figure 5 This is a schematic diagram of the mounting base connection in this invention; Figure 6 This is a cross-sectional structural diagram of the mounting base connection in this invention; Figure 7 This is a schematic diagram of the cross-sectional structure of the clamping component in this invention; Figure 8 This is a schematic diagram of the connection structure of the clamping components in this invention; Figure 9 This is a schematic diagram of the drill bit assembly connection structure in this invention; Figure 10 This is a schematic diagram of the cross-sectional view of the drill bit assembly connection in this invention; Figure 11 This is a schematic diagram of the disassembly and reassembly of the drill bit assembly in this invention.

[0019] In the diagram: 1. Frame; 2. Clamping assembly; 21. Clamping seat; 211. Air chamber; 22. Airway seat; 221. Airway; 23. Gripper; 24. Air tube; 25. Air pump; 3. Drill bit assembly; 31. Drill bit holder; 32. Grinding sleeve; 33. Drill bit sleeve; 34. Locking cap; 35. Central spindle; 4. X-axis axial movement assembly; 41. X-axis guide rail; 42. Lead screw one; 43. Motor one; 5. Y-axis axial movement assembly; 51. Y-axis mounting bracket; 52. Y-axis guide rail; 53. Internal thread bracket; 54. Lead screw II; 55. Motor II; 56. Support platform; 57. Bidirectional fan; 58. Chip collection bin; 59. T-joint pipe; 6. Z-axis axial movement assembly; 61. Z-axis mounting bracket; 62. Rod-driven cylinder; 7. Mounting base; 71. Outer casing; 711. Support frame; 72. Motor III; 8. Reversing valve; 9. Splash guard; 91. Chip suction pipe; 92. Spring; 93. Guide rod; 94. Chip suction trough head. Detailed Implementation

[0020] 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.

[0021] Example 1 like Figure 1-11 As shown, this is the first embodiment of the present invention. This embodiment provides a computer hard disk tray processing device, including a frame 1. The frame 1 is a rigid device body, usually constructed from welded steel profiles or aluminum alloy profiles, providing a stable mounting base for all moving parts and functional modules. The frame 1 is internally equipped with a three-axis module, on which a mounting base 7 is provided. The mounting base 7 is equipped with a clamping assembly 2, which clamps a drill bit assembly 3. The three-axis module is responsible for driving the drill bit assembly 3 to achieve precise positioning and feed motion in three-dimensional space. The clamping assembly 2 is used to automatically grab and release the drill bit assembly 3. The drill bit assembly 3 includes a drill bit seat 31, a grinding sleeve 32, a drilling drill bit sleeve 33, a locking cover 34, and a central shaft 35. It adopts an integrated modular design, which is convenient for free combination and use. The central shaft 35 is installed at the center of the top of the drill bit holder 31. Serving as the assembly base, the lower end of the central shaft 35 is typically fixedly connected to or integrally formed with the drill bit holder 31. The bottom end of the drill bit holder 31 is the first part to contact the workpiece, serving a centering function and initiating the drilling process. The main body of the central shaft 35 is non-circular and irregularly shaped (like a plum blossom). Several drilling bit sleeves 33 are inserted onto the central shaft 35. The diameter of the drilling bit sleeves 33 gradually increases from bottom to top, forming a multi-stage drilling structure. Multiple drilling bit sleeves 33 are sequentially fitted onto the corresponding shaft sections of the central shaft 35 from top to bottom. Each drill bit sleeve 33 is essentially a ring-shaped cutter body. Its inner hole transmits torque to the central shaft 35 via a key or interference fit. Its outer circumference is machined with cutting edges to form drill bits of different diameters. The key point is that the outer diameter (i.e., the drill bit diameter) of these drill bit sleeves 33 gradually increases from bottom to top. For example, the bottommost drill bit sleeve 33 has the smallest diameter and is used to drill the initial small hole; the second drill bit sleeve 33 above it has a slightly larger diameter and is used to enlarge the hole; and so on, with the topmost drill bit sleeve 33 having the largest diameter. The final hole diameter is formed by the matching drill bit sleeves 33. A grinding sleeve 32 is provided between the drill bit holder 31 and the drill bit sleeve 33, and between the drill bit sleeve 33 and the drill bit holder 31. A grinding sleeve 32 is also provided between two adjacent drill bit sleeves 33, and between the bottom drill bit sleeve 33 and the drill bit holder 31. The grinding sleeve 32 is inserted on the central shaft 35. The diameter of the grinding sleeve 32 gradually increases from bottom to top and matches the size of the corresponding drill bit holder 31 / drill bit sleeve 33, forming a multi-stage grinding structure. The outer diameter of the central shaft 35 matches the outer diameter of the adjacent drill bit sleeve 33 below it, and its outer circumferential surface is inlaid with abrasive material (such as diamond, cubic boron nitride particles) or hard material. Made of high-quality alloy, the surface may have a fine texture. Its function is to grind and polish the freshly processed hole wall immediately after the previous drilling is completed, remove burrs and improve the surface finish. After all the drilling bit sleeves 33 and grinding sleeves 32 are installed on the central shaft 35, the uppermost grinding sleeve 32 is pressed down by a locking cover 34 at the top. The locking cover 34 is positioned by the insertion of the boss at the top of its end into the top of the central shaft 35, and is fastened to the central shaft 35 by the bolts on the side and / or the bolts at the top, thereby axially locking all parts to form a rigid integral tool with multi-stage drilling and grinding functions. A locking cover 34 is inserted into the top of the central shaft 35. The bottom end of the locking cover 34 abuts against the topmost grinding sleeve 32. The top end and the outer circumferential surface of the locking cover 34 are connected to the central shaft 35 by bolts.

[0022] Example 2 like Figure 1-11As shown, a guide rod 93 is vertically slidably connected to the bottom of the mounting base 7. A splash guard 9 is installed at the bottom end of the guide rod 93. There are at least two guide rods 93 (usually three or four). The splash guard 9 is a cup-shaped or cylindrical cover with an open bottom, usually made of transparent plastic or metal for observation. The bottom of the splash guard 9 contacts the plate before the drill bit seat 31. The center of the top of the splash guard 9 has an opening for the drill bit assembly 3 to pass through. The drill bit assembly 3 contacts the plate through the opening to drill a hole. A chip suction head 94 is provided on the top circumferential side of the inner side of the splash guard 9. A chip suction mechanism is connected to the outside of the chip suction head 94. In its natural state, the splash guard 9 is in the lowest position (determined by the limiting block or structure on the guide rod 93). When the drill assembly 3 descends, the bottom edge of the splash guard 9 first contacts the workpiece surface. As it continues to descend, the splash guard 9 slides upward relative to the drill assembly 3, but its bottom edge is pressed on the workpiece, thus forming a relatively closed space around the drill assembly 3. A ring of pipes is connected around the drill opening on the top of the inner side of the splash guard 9, which constitutes the chip suction head 94.

[0023] A spring 92 is fitted on the guide rod 93. The top end of the spring 92 abuts against the bottom of the mounting base 7, and the bottom end of the spring 92 abuts against the top of the splash guard 9. Under the action of the spring 92, the bottom edge of the splash guard 9 is always in close contact with the workpiece under the pressure of the spring 92.

[0024] Example 3 like Figure 1-11 As shown, the chip suction mechanism includes a chip suction pipe 91, a bidirectional fan 57, a chip collection bin 58, and a three-way pipe 59; The dust suction pipe 91 is connected to the outside of the splash shield 9 and is connected to the dust suction head 94. The dust suction head 94 is connected to a dust suction pipe 91 through an interface opened on the side wall of the splash shield 9. The dust suction pipe 91 is usually a flexible hose to allow the splash shield 9 to slide up and down. One end of the dust suction pipe 91 is connected to the air inlet of the bidirectional fan 57, and the air outlet of the bidirectional fan 57 is connected to a three-way pipe 59. The three-way pipe 59 is connected to the chip collection bin 58. A reversing valve 8 is installed on the three-way pipe 59 for one-way connection to the outside or the chip collection bin 58. One outlet of the three-way pipe 59 is connected to the inlet of the chip collection bin 58, and the other outlet is connected to the outside atmosphere through a reversing valve 8. The reversing valve 8 can be a solenoid valve and is controlled by the control system. In normal drilling and chip suction mode, the reversing valve 8 closes the passage to the atmosphere. When the bidirectional fan 57 is working, it draws air and debris from the splash guard 9 to form a negative pressure, which draws the debris into the chip suction pipe 91 and then blows it into the chip collection bin 58 for storage. The chip collection bin 58 can be designed as a drawer type for easy periodic cleaning. When it is necessary to clean the pipeline or splash guard, the control system can switch the reversing valve 8 so that the air inlet of the bidirectional fan 57 draws in outside air through the three-way pipe 59 and the reversing valve 8, while the air outlet blows the air towards the chip suction pipe 91 to achieve the back-blowing cleaning function.

[0025] Example 4 like Figure 1-11 As shown, the clamping assembly 2 includes a clamping seat 21, an airway seat 22, a gripper 23, an air tube 24, and an air pump 25; The clamping seat 21 is rotatably connected to the mounting seat 7. The bottom end of the clamping seat 21 extends out from the bottom of the mounting seat 7. A clamping hole is provided in the middle of the bottom end of the clamping seat 21. A clamping hole is machined in the center of the bottom end of the clamping seat 21 to accommodate the locking cover 34 part of the drill bit assembly 3. An air cavity 211 is provided circumferentially on the inner wall of the clamping hole. Multiple radially extending blind holes are uniformly provided circumferentially on the inner wall of the clamping hole. These blind holes constitute the air cavity 211. The gripper 23 is slidably connected inside the air chamber 211. The gripper 23 can extend from the air chamber 211 into the clamping hole to clamp the locking cover 34. The inner end face of the gripper 23 can be designed as a groove or tooth shape that matches the shape of the locking cover 34 to enhance the clamping force. The top of the clamping seat 21 is rotatably connected to a stationary air passage seat 22 via a rotating seal (such as a combination of bearings and sealing rings). The bottom of the air passage seat 22 has an annular air passage 221. The air chamber 211 is connected to the air passage 221. The annular air passage 221 is aligned with the corresponding radial hole on the top of the clamping seat 21 through a radial drill hole, thereby communicating with the bottom of all air chambers 211. The air pipe 24 is connected to the top of the air passage seat 22 and is connected to the air passage 221. The air pipe 24 is connected to the air pump 25. The air pump 25 serves as a pressure source. When the air pump 25 fills the air pipe 24 and the air passage 221 with compressed air, the pressure medium enters each air chamber 211 and pushes the gripper 23 to move radially toward the center, thereby tightly clamping the locking cover 34 inserted into the clamping hole. When the air pump 25 exhausts and releases pressure, the gripper 23 retracts radially outward under the action of air pressure, releasing the drill bit assembly 3. This design realizes the automatic clamping function of the clamping seat 21.

[0026] The mounting base 7 is fitted with an outer shell 71, and a support frame 711 is provided inside the outer shell 71. The air pump 25 is installed on the top of the support frame 711. The airway seat 22 is bolted to the outer casing 71, so it is fixed and does not rotate relative to the rotating clamp seat 21; The top of the outer casing 71 is equipped with a motor 3 72. The output shaft of the motor 3 72 is downward and connected to the top of the clamping seat 21 through a coupling. Therefore, the motor 3 72 can drive the clamping seat 21 to rotate at high speed around its axis.

[0027] Example 5 like Figure 1-11 As shown, the three-axis module includes an X-axis axial movement component 4, a Y-axis axial movement component 5, and a Z-axis axial movement component 6. The X-axis axial movement assembly 4 includes two parallel X-axis guide rails 41, a lead screw 42, and a motor 43. The X-axis axial movement assembly 4 is used to realize linear motion along the length direction of the frame (defined as the X-axis). X-axis guide rail 41 is mounted on frame 1. Each X-axis guide rail 41 usually integrates a high-precision linear guide rail (not shown separately in the figure). Lead screw 42 is rotatably connected inside the X-axis guide rail 41. Lead screw 42 is supported by bearing seats at both ends (not shown in the figure) and is arranged in parallel between the two X-axis guide rails 41 and can rotate freely. Motor 43 (preferably a servo motor or stepper motor) is mounted at the end of the X-axis guide rail 41 and connected to the end of lead screw 42 through a coupling to drive lead screw 42 to rotate. The two ends of the Y-axis axial moving component 5 are slidably connected to the X-axis guide rail 41 and threadedly connected to the lead screw 42.

[0028] The Y-axis axial movement assembly 5 includes a long strip-shaped Y-axis mounting bracket 51, a Y-axis guide rail 52, an internal threaded bracket 53, a second lead screw 54, a second motor 55, and a support 56; Y-axis guide rail 52 is installed on one side of Y-axis mounting bracket 51. Lead screw 54 is rotatably connected to one side of Y-axis mounting bracket 51 and is arranged parallel to Y-axis guide rail 52. Internal thread bracket 53 is installed at both ends of Y-axis mounting bracket 51. Motor 55 is installed at one end of Y-axis mounting bracket 51. Support 56 is installed on the other side of Y-axis mounting bracket 51. When motor 43 drives lead screw 42 to rotate, through the thread side effect with the internal thread of internal thread bracket 53, it drives the entire Y-axis mounting bracket 51 and all its components to move precisely in a straight line along the X-axis. On the side of Y-axis mounting bracket 51 facing the working area, a Y-axis guide rail 52 is fixedly installed, and its extension direction is perpendicular to the X-axis (defined as Y-axis). Lead screw 54 is installed parallel to Y-axis mounting bracket 51 through bearing seat and is parallel to Y-axis guide rail 52. Motor 55 is fixed to the end of Y-axis mounting bracket 51, and its output shaft is connected to lead screw 54 through coupling to drive lead screw 54 to rotate. On the other side of the Y-axis mounting bracket 51, there is a support 56 for mounting other auxiliary equipment; The internal threaded bracket 53 is slidably connected to the X-axis guide rail 41 and threadedly connected to the lead screw 42; The output shaft of motor 255 is connected to the end of lead screw 254; Both the bidirectional fan 57 and the chip collection bin 58 are installed on the top of the base 56. Both the bidirectional fan 57 and the chip collection bin 58 are installed on the base 56 of the Y-axis mounting bracket 51 and move together with the Y-axis moving assembly, reducing long-distance pipelines. The Z-axis axial movement component 6 is slidably connected to the Y-axis guide rail 52 and threadedly connected to the lead screw 54.

[0029] Z-axis axial movement assembly 6 includes Z-axis mounting bracket 61 and rod cylinder 62, used to realize the vertical (defined as Z-axis) feed movement of drill bit assembly 3; The rod-driven cylinder 62 is mounted on top of the Z-axis mounting bracket 61; Mounting base 7 is slidably connected to one side of Z-axis mounting bracket 61; The output end of the rod cylinder 62 is connected to the mounting base 7. Its piston rod extends vertically downward, and the end of the piston rod is fixedly connected to a vertical mounting base 7. Therefore, the telescopic motion of the rod cylinder 62 is directly converted into the up-and-down movement of the mounting base 7 along the Z-axis. The rod cylinder 62 can be a cylinder with position feedback function or a servo electric cylinder to achieve more precise feed depth control. The other side of the Z-axis mounting bracket 61 is slidably connected to the Y-axis guide rail 52 and threadedly connected to the lead screw 54. The back of the Z-axis mounting bracket 61 is provided with a slider that slides with the Y-axis guide rail 52 and a nut seat that threadedly engages with the lead screw 54 (not shown separately in the figure). When the motor 55 drives the lead screw 54 to rotate, it can drive the Z-axis mounting bracket 61 to move along the Y-axis guide rail 52.

[0030] A method of using a computer hard disk tray processing device includes the following steps: Step 1: Use a special clamp to fix the hard drive tray plate to be processed onto the worktable of rack 1; Step 2: Based on the final hole diameter, stepped hole type and depth required for this processing task, select or pre-assemble the corresponding drill bit assembly 3. Insert the locking cover 34 of the assembled drill bit assembly 3 into the clamping hole at the bottom of the clamping seat 21 until it is in place. Then, use the air pump 25 to drive the jaws 23 to clamp the drill bit assembly 3. Step 3: According to the processing program, first drive the three-axis module to move the drill bit assembly 3 to the X and Y coordinates above the hole to be processed. Then, control the rod cylinder 62 to descend. During this process, the bottom edge of the splash guard 9 first contacts the surface of the workpiece plate and presses it tightly. As the rod cylinder 62 continues to advance, the drill bit assembly 3 moves downward. Through the multi-stage drilling structure and multi-stage grinding structure of the drill bit assembly 3, drilling and grinding of different hole diameters are completed. Step 4: During the drilling process, the metal chips generated are confined within the space enclosed by the splash guard 9. The continuous negative pressure generated by the chip suction mechanism draws the air and chip mixture that permeates the splash guard 9 through the chip suction head 94 and sends it to the chip collection bin 58. Step 5: After drilling and grinding are completed, the rod cylinder 62 controls the drill bit assembly 3 to start retracting. During the retraction process, the chip suction mechanism continues to work, which can further suck up the small amount of tiny debris that may remain at the bottom of the hole or adhere to the surface of the drill bit, ensuring that the hole is clean. When the drill bit assembly 3 is completely withdrawn from the workpiece, and the splash guard 9 follows the spring 92 to its lowest position (detached from the workpiece surface), the material is discharged. Step 6: After the material feeding is completed, briefly switch the control reversing valve 8 to make the bidirectional fan 57 blow air in the opposite direction (or switch the airflow direction) to briefly back-blow the chip suction pipe 91, splash guard 9, and the inside of the drill bit assembly 3 to remove any flocculent debris that may be adhering to them.

[0031] 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 computer hard disk tray processing device, comprising a frame (1), wherein a three-axis module is disposed inside the frame (1), a mounting base (7) is disposed on the three-axis module, a clamping assembly (2) is disposed on the mounting base (7), and a drill bit assembly (3) is clamped on the clamping assembly (2), characterized in that: The drill bit assembly (3) comprises a drill bit seat (31), a polishing sleeve (32), a drilling drill sleeve (33), a locking cover (34), and a central shaft (35); The central shaft (35) is installed in the middle of the top end of the drill bit seat (31), a plurality of drilling drill sleeves (33) are inserted on the central shaft (35), the sizes of the drilling drill sleeves (33) gradually increase from bottom to top, and a multi-stage drilling structure is formed; The drill bit seat (31), the drilling drill sleeve (33), and the drilling drill sleeve (33) are provided with the polishing sleeve (32), the polishing sleeve (32) is inserted on the central shaft (35), the sizes of the polishing sleeve (32) gradually increase from bottom to top, and the sizes of the polishing sleeve (32) are matched with the sizes of the corresponding drill bit seat (31) / drilling drill sleeve (33), so that a multi-stage polishing structure is formed; The top end of the central shaft (35) is inserted with the locking cover (34), the bottom end of the locking cover (34) abuts against the topmost polishing sleeve (32), and the top end and the outer circumferential surface of the locking cover (34) are connected with the central shaft (35) through bolts.

2. The computer hard drive tray processing apparatus of claim 1, wherein: The bottom of the mounting seat (7) is vertically and slidably connected with a guide rod (93), and the bottom end of the guide rod (93) is provided with a splash-proof cover (9); The bottom of the splash-proof cover (9) is in contact with the plate before the drill bit seat (31) is in contact with the plate, a through opening is formed in the center of the top of the splash-proof cover (9), and the drill bit assembly (3) is in contact with the plate at the through opening to drill holes; A chip suction groove head (94) is arranged on the top of the inner side of the splash-proof cover (9), and the chip suction groove head (94) is connected with a chip suction mechanism.

3. The computer hard drive tray processing apparatus of claim 2, wherein: A spring (92) is sleeved on the guide rod (93), the top end of the spring (92) abuts against the bottom of the mounting seat (7), and the bottom end of the spring (92) abuts against the top of the splash-proof cover (9).

4. The computer hard drive tray processing apparatus of claim 3, wherein: The chip suction mechanism comprises a chip suction pipe (91), a bidirectional fan (57), a chip collection bin (58), and a tee pipe (59); The chip suction pipe (91) is connected to the outer side of the splash-proof cover (9) and is in communication with the chip suction groove head (94); One end of the chip suction pipe (91) is connected to the air inlet of the bidirectional fan (57), and the air outlet of the bidirectional fan (57) is connected with the tee pipe (59); The tee pipe (59) is in communication with the chip collection bin (58), and a reversing valve (8) is arranged on the tee pipe (59) to be in one-way communication with the outside or the chip collection bin (58).

5. The computer hard drive tray processing apparatus of claim 4, wherein: The clamping assembly (2) comprises a clamping seat (21), an air channel seat (22), a clamping jaw (23), an air pipe (24), and an air pump (25); The clamping seat (21) is rotationally connected to the mounting seat (7), the bottom end of the clamping seat (21) penetrates out of the bottom of the mounting seat (7), a clamping hole is formed in the middle of the bottom end of the clamping seat (21), and an air cavity (211) is formed in the inner wall of the clamping hole in a circumferential direction; The clamping jaw (23) is slidably connected to the inside of the air cavity (211), and the clamping jaw (23) can extend into the clamping hole from the air cavity (211) to clamp the locking cover (34). The top of the clamping seat (21) is rotationally connected with an air channel seat (22), the bottom of the air channel seat (22) is provided with an annular air channel (221), and the air cavity (211) is communicated with the air channel (221); The air pipe (24) is connected with the top of the air channel seat (22) and communicated with the air channel (221), and the air pipe (24) is connected with the air pump (25).

6. The computer hard drive tray processing apparatus of claim 5, wherein: The top of the mounting seat (7) is provided with an outer sleeve (71), the inner portion of the outer sleeve (71) is provided with a support frame (711), and the air pump (25) is mounted on the top of the support frame (711); The air channel seat (22) is mounted on the outer sleeve (71) through bolts; The top of the outer sleeve (71) is provided with a motor three (72), and the output shaft of the motor three (72) is connected with the top of the clamping seat (21).

7. The computer hard drive tray processing apparatus of claim 6, wherein: The three-axis module comprises an X-axis axial movement assembly (4), a Y-axis axial movement assembly (5) and a Z-axis axial movement assembly (6); The X-axis axial movement assembly (4) comprises an X-axis guide rail (41), a lead screw one (42) and a motor one (43); The X-axis guide rail (41) is mounted on the rack (1), the lead screw one (42) is rotationally connected in the X-axis guide rail (41), and the motor one (43) is mounted on the end of the X-axis guide rail (41) and connected with the end of the lead screw one (42); The two ends of the Y-axis axial movement assembly (5) are respectively slidably connected in the X-axis guide rail (41) and threadedly connected with the lead screw one (42).

8. The computer hard drive tray processing apparatus of claim 7, wherein: The Y-axis axial movement assembly (5) comprises a Y-axis mounting frame (51), a Y-axis guide rail (52), an internal thread frame (53), a lead screw two (54), a motor two (55) and a bearing platform (56); The Y-axis guide rail (52) is mounted on one side of the Y-axis mounting frame (51), the lead screw two (54) is rotationally connected on one side of the Y-axis mounting frame (51) and arranged in parallel with the Y-axis guide rail (52), the internal thread frame (53) is mounted on the two ends of the Y-axis mounting frame (51), the motor two (55) is mounted on one end of the Y-axis mounting frame (51), and the bearing platform (56) is mounted on the other side of the Y-axis mounting frame (51); The internal thread frame (53) is slidably connected in the X-axis guide rail (41) and threadedly connected with the lead screw one (42); The output shaft of the motor two (55) is connected with the end of the lead screw two (54); The bidirectional fan (57) and the chip collection bin (58) are both mounted on the top of the bearing platform (56); The Z-axis axial movement assembly (6) is slidably connected on the Y-axis guide rail (52) and threadedly connected with the lead screw two (54).

9. The computer hard drive tray processing apparatus of claim 8, wherein: The Z-axis axial movement assembly (6) comprises a Z-axis mounting frame (61) and a rod-equipped air cylinder (62); The rod-equipped air cylinder (62) is mounted on the top of the Z-axis mounting frame (61); The mounting seat (7) is slidably connected on one side of the Z-axis mounting frame (61); The output end of the rod-equipped air cylinder (62) is connected with the mounting seat (7); The other side of the Z-axis mounting frame (61) is slidably connected with the Y-axis guide rail (52) and is threadedly connected with the second screw rod (54).

10. A method of using the computer hard drive carrier processing apparatus of claim 9, comprising: The method comprises the following steps: Step one, the hard disk bracket plate to be processed is fixed on the workbench of the machine frame (1) using a special clamp; Step two, according to the final hole diameter, stepped hole type and depth required by the current processing task, select or pre-assemble the corresponding drill bit assembly (3), insert the locking cover (34) part of the assembled drill bit assembly (3) into the clamping hole at the bottom of the clamping seat (21) until it is in place, and drive the clamping jaw (23) to clamp the drill bit assembly (3) by the air pump (25); Step three, according to the processing program, first drive the three-axis module to move the drill bit assembly (3) to the X, Y coordinates directly above the hole to be processed, then control the rod cylinder (62) to descend, in this process, the bottom edge of the splash guard (9) first contacts the workpiece plate surface and is pressed tightly, and as the rod cylinder (62) continues to advance, the drill bit assembly (3) moves downward, and through the multi-stage drilling structure and multi-stage polishing structure of the drill bit assembly (3), the hole drilling and polishing of different diameters are completed; Step four, during the drilling process, the metal chips generated are confined in the space surrounded by the splash guard (9), and the continuous negative pressure generated by the chip suction mechanism sucks the mixture of air and chips diffused in the splash guard (9) through the chip suction slot (94) and sends it to the chip collection bin (58); Step five, after the drilling and polishing are completed, the rod cylinder (62) controls the drill bit assembly (3) to start retracting, and in the retraction process, the chip suction mechanism continues to work, which can further suck and clean the small amount of fine chips that may remain at the bottom of the hole or adhere to the surface of the drill bit, ensuring the cleanliness of the hole, and when the drill bit assembly (3) completely exits the workpiece and the splash guard (9) is lowered to its lowest position (away from the workpiece surface) under the action of the spring (92), the discharge is performed; Step six, after the discharging is completely completed, control the reversing valve (8) to switch briefly, so that the bidirectional air blower (57) blows in reverse (or changes the air flow direction), and the inside of the chip suction pipe (91), the splash guard (9) and the drill bit assembly (3) are briefly blown in reverse to remove the flocculent chips that may adhere thereto.

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