A drilling machine for processing back holes of display housings

Abstract

The present invention provides a punching machine for processing back holes of a display shell, which relates to the technical field of punching machines and includes an equipment base, a center column is provided at the center of the surface of the equipment base; a transfer suction cup; a first punching mechanism; a second punching mechanism, which is arranged at the second hole opening position, and includes a main stamping assembly, an auxiliary stamping assembly, and a lower die assembly. The lower die assembly includes a lower template, the main stamping assembly is fixed to the side wall of the center column, the bottom surface of the main stamping assembly is symmetrically provided with an auxiliary stamping assembly, the lower template is arranged directly below the auxiliary stamping assembly and is rotatably placed in the equipment base, one side surface of the lower template is symmetrically provided with a rib forming die cavity distributed in a rectangular array, and the other side surface is symmetrically provided with a flat groove portion distributed in a rectangular array, each flat groove portion includes a plurality of heat dissipation hole die cavities distributed in a ring array; the present invention can efficiently open inwardly convex heat dissipation holes on a metal display shell, and the processed display shell has high heat dissipation efficiency.

Description

Technical Field

[0001] The present invention relates to the technical field of hole punching machines, in particular to a hole punching machine for processing back holes of a display housing. Background Art

[0002] As a crucial component of electronic devices, the display housing's structural design directly impacts the assembly stability and heat dissipation performance of internal components. During display housing processing, the creation of backholes is a critical step. These typically include heat dissipation holes for heat dissipation and assembly holes for component assembly.

[0003] In existing technologies, such as the solution disclosed in patent document CN221871092U, a flat circular through-hole is machined into a metal housing using a stamping die. This method uses a single stamping operation to form the mounting hole. A structural analysis of the technical solution in patent CN221871092U and the heat dissipation requirements of the display housing reveals the following drawbacks in its hole-forming device:

[0004] This device uses a vertical drill feed processing method, which can only generate standard circular holes (such as heat dissipation holes or assembly holes) with the axis perpendicular to the shell plane. This type of hole structure causes the metal shell to form a large-area plane contact with the internal motherboard. Although the elastic clamping of the outer frame is achieved by springs and rollers, the processed channels lack a three-dimensional design. When the shell and the motherboard are fitted together, there is only a gap between the two caused by the processing tolerance, which seriously reduces the heat conduction efficiency along the thickness direction of the shell.

[0005] At the same time, although the device in the above solution integrates a suction fan and a drawer with filter holes to clean debris, it does not solve the fundamental problem of blockage of the heat dissipation path.

[0006] Generally speaking, while plastic housings can be injection molded with raised structures in the backhole area to artificially create air channels, the low thermal conductivity of plastic (typically less than 0.5W / m·K) prevents efficient heat transfer to the housing surface, necessitating the reliance on metal heat sinks for reinforcement, leading to structural redundancy and increased costs. While metal housings offer excellent thermal conductivity (aluminum alloy has a thermal conductivity of approximately 200W / m·K), current equipment is limited by the purely vertical drilling capabilities, making it impossible to directly machine three-dimensional heat dissipation channels with angled or stepped hole walls. This prevents the use of metal's inherent thermal conductivity to achieve radial heat dissipation, ultimately hindering the heat dissipation efficiency and reliability of high-power display products.

[0007] Therefore, this application provides a new hole-punching machine for processing the back holes of display shells, which focuses on the efficient processing of three-dimensional heat dissipation channels of metal shells. Through stamping and automated assembly processes, it provides a technical solution for high-power display shells that combines heat dissipation optimization and dust protection. Summary of the Invention

[0008] In view of the deficiencies in the prior art, the present invention provides a drilling machine for processing the back hole of a display housing, which solves the problems mentioned in the background art.

[0009] To achieve the above objectives, the present invention is implemented through the following technical solutions:

[0010] A punching machine for processing the back holes of a display shell, comprising: an equipment base, a feeding station, a first hole opening position, a second hole opening position and a dust screen assembly station arranged in a ring on the surface, and a center column is provided at the center of the surface, and a horizontal top beam connecting plate is fixed on the top of the center column; a transfer suction cup is rotatably installed on the side wall of the center column for rotating the shell between the stations; a first punching mechanism is provided at the first hole opening position for punching out a central assembly hole on the outer edge surface of the shell; a second punching mechanism is provided at the second hole opening position, comprising: a main stamping assembly fixedly connected to the side wall of the center column, comprising a main stamping plate and a main stamping driving rod connected to the top beam connecting plate, the top of the main stamping plate is connected to the main stamping driving rod, and stamping guide columns are symmetrically arranged on the bottom of the main stamping plate, and the bottom end of each stamping guide column is fixedly connected to a hemispherical punch with an annular punch needle through hole; an auxiliary stamping assembly is symmetrically arranged on the bottom surface of the main stamping assembly, comprising a sliding sleeve provided on the stamping guide The punch pin fixing plate on the outer wall of the column can realize independent lifting and lowering relative to the main punching assembly. The top of the punch pin fixing plate is connected to the punch pin driving rod. The top of the punch pin driving rod passes through the main punching plate and extends to the top of the main punching driving rod. The bottom of the punch pin fixing plate is fixed with multiple sets of punching parts with heat dissipation hole punch pins; the lower die assembly is located directly below the auxiliary punching assembly, including a lower die plate rotatably installed in the equipment base, and the two sides of the lower die plate are symmetrically provided with a rib forming cavity and a heat dissipation hole cavity, and each of the rib forming cavities is provided with a cross ridge plate; the heat dissipation hole punch pin slides through the punch pin through-hole of the hemispherical punch and is aligned with the heat dissipation hole cavity, which is used to punch out heat dissipation holes and flat ribs to ensure that the heat dissipation holes are accurately formed; the rib forming cavity is aligned with the hemispherical punch up and down to force the flat rib to be convexly formed into an inwardly convex rib with a positioning slot, and to limit the heat dissipation hole from extending to the inside of the outer shell along with the inward convexity of the rib.

[0011] The present invention provides a drilling machine for processing the back hole of a display housing. Compared with the prior art, it has the following advantages:

[0012] 1. Solve the heat dissipation bottleneck: The present invention utilizes the timing action of the auxiliary stamping component and the main stamping component to cooperate with the rotatable lower template, first punches out a flat hole portion containing annular heat dissipation holes on the outer shell, and then uses the rib forming cavity and the hemispherical punch to convex the flat ribs into three-dimensional ribs, so that the heat dissipation holes extend into the heat dissipation gap formed inside the shell, thereby expanding the air inlet cross-sectional area. At the same time, the main stamping component can push the flat ribs inward, so that the flat ribs convex inward to form inward convex ribs. When the display shell assembly and the display mainboard are assembled, the inward convex ribs can support and position the display mainboard from the inside, and can also leave a heat dissipation gap between the display shell and the display mainboard, so that heat can be dissipated from the heat dissipation holes. The inward convex ribs not only increase the heat exchange surface area, but also form an efficient air duct by lifting the mainboard, which can give full play to the thermal conductivity advantage of the metal shell and solve the heat dissipation limitations of the flat hole structure in the prior art.

[0013] 2. Achieve automated assembly: The present invention proposes to simultaneously punch out precise positioning slots at the bottom of the inner convex rib during the main punching process. At the dust screen assembly station, the transfer pressing components (screen adsorption head and screen cover pressing roller) automatically grab the dust screen, accurately cover its screen on the inner convex rib, and use rolling to snap the cross positioning buckle into the positioning slot to achieve reliable dust protection. At the same time, after the first punching mechanism punches out the central assembly hole, the assembly part grabbing component directly grabs the integrated assembly part and inserts it into the hole through interference fit. The assembly flange is used for precise positioning, achieving one-time installation of the core assembly parts, significantly reducing the subsequent manual assembly process.

[0014] At the same time, the use of a circular multi-station layout (loading, first hole opening, second hole opening, dust screen assembly station, etc.) and the automatic shell transfer of the transfer suction cup achieve a high degree of automation and consistency in the processing process. In particular, the structural design of the rotatable lower platen at the second hole opening, combined with the waste purge plate's self-cleaning function, ensures fast, accurate and clean mold switching, improving stamping stability and mold life.

[0015] Finally, the timing of punching and forming actions is precisely controlled by the layered drive of the main and / or auxiliary punch components (main punch drive rod and punch needle drive rod), avoiding mutual interference, improving the production efficiency of back hole processing, and enhancing product consistency and equipment operation reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0017] Figure 1A schematic structural diagram of a drilling machine for processing a back hole of a display housing according to the present invention is shown;

[0018] Figure 2 A schematic structural diagram of a drilling machine for processing a back hole of a display housing according to the present invention is shown from another perspective;

[0019] Figure 3 A schematic cross-sectional structure diagram of a hole tapping machine according to the present invention is shown;

[0020] Figure 4 Shows a schematic structural diagram of the middle punching assembly of the present invention;

[0021] Figure 5 A schematic diagram of the internal cross-sectional structure of the pressure cover of the present invention is shown;

[0022] Figure 6 It shows a schematic structural diagram of the assembly grabbing assembly of the present invention;

[0023] Figure 7 A schematic diagram of the connection structure of the main stamping assembly and the auxiliary stamping assembly of the present invention is shown;

[0024] Figure 8 It shows a schematic cross-sectional structure diagram of the main stamping assembly and the auxiliary stamping assembly of the present invention;

[0025] Figure 9 Shows a schematic structural diagram of the punching part of the present invention;

[0026] Figure 10 Shows a schematic diagram of the hemispherical punch structure of the present invention;

[0027] Figure 11 It shows a schematic diagram of the surface structure of the device base of the present invention;

[0028] Figure 12 Shows a side structural schematic diagram of the lower template of the present invention;

[0029] Figure 13 Shows another side structural schematic diagram of the lower template of the present invention;

[0030] Figure 14 It shows a schematic diagram of the bottom structure of the equipment base of the present invention;

[0031] Figure 15 Shows a schematic diagram of the composite assembly structure of the present invention;

[0032] Figure 16 A schematic diagram of the display housing assembly structure of the present invention is shown;

[0033] Figure 17 Shows a schematic diagram of the inner convex rib structure of the present invention;

[0034] Figure 18 A schematic diagram of the structure of the dust screen and the outer shell connecting to each other is shown;

[0035] Figure 19 A schematic diagram of the docking structure between the integrated assembly part and the outer shell of the present invention is shown.

[0036] As shown in the figure: 1. Equipment base, 11. Punching die cavity, 12. Assembly die cavity, 13. Center column, 14. Top beam connecting plate, 15. Transfer suction cup, 16. Feeding station, 17. First opening position, 18. Second opening position, 19. Dust screen assembly station, 2. First feeding guide rail, 21. Assembly parts carrier plate, 3. Middle punching assembly, 31. Main punching drive rod, 32. Press cover, 33. Stamping base plate, 34. Elastic presser foot, 35. Special-shaped punch, 351. Center guide tube , 352, side punch block, 36, center punching lower die, 361, special-shaped die hole, 4, assembly parts grab assembly, 41, grab lift rod, 42, expansion grab head, 43, expansion drive rod, 44, rack push plate, 45, gear, 46, wedge expansion plate, 5, main punch assembly, 51, main punch plate, 52, main punch drive rod, 53, punch guide column, 54, hemispherical punch, 541, punch needle through hole, 6, auxiliary punch assembly, 61, punch needle fixing plate, 62, punch needle drive Moving rod, 63, punching part, 631, heat dissipation hole punching needle, 7, lower mold assembly, 71, lower mold plate, 711, heat dissipation hole mold cavity, 712, rib forming mold cavity, 7121, cross ridge convex plate, 72, lower mold fixing frame, 73, first motor, 74, waste purge plate, 8, composite component, 81, shell pressure plate, 811, pressing drive rod, 82, second feeding guide rail, 821, dustproof net carrier plate, 83, robot arm base, 831, positioning plate, 84, adsorption arm drive rod, 8 41. Second motor, 85. Screen adsorption head, 851. Vacuum nozzle, 86. Screen pressing roller, 87. Assembly positioning frame, 9. Display housing assembly, 91. Heat dissipation holes, 92. Inner convex ribs, 921. Positioning slots, 93. Dustproof screen, 931. Screen frame, 932. Screen, 933. Cross positioning buckle, 94. Integrated assembly parts, 941. Assembly tube, 942. Data interface board, 943. Assembly flange, 95. Middle assembly hole, 96. Outer shell. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] In order to solve the technical problems in the background technology, a drilling machine for processing the back hole of a display housing is provided as follows:

[0039] like Figure 1-Figure 3 As shown, as one embodiment of the present invention, the present invention provides a drilling machine for processing a back hole of a display housing, comprising:

[0040] The surface of the equipment base 1 is provided with a feeding station 16, a first opening position 17, a second opening position 18 and a dust screen assembly station 19 in a circular manner. A central column 13 is provided at the center of the surface of the equipment base 1;

[0041] The transfer suction cup 15 is rotatably mounted on the side wall of the central column 13 to rotate the outer shell 96;

[0042] A first punching mechanism is provided at the first opening position 17 for punching out a middle assembly hole 95 in the middle section of the outer edge surface of the outer shell 96;

[0043] The second punching mechanism is provided at the second opening position 18, and comprises a main punching assembly 5, an auxiliary punching assembly 6, and a lower die assembly 7, wherein Figure 12-14 As shown, the lower mold assembly 7 includes a lower mold plate 71, a main stamping assembly 5 is fixed to the side wall of the center column 13, and an auxiliary stamping assembly 6 is symmetrically provided on the bottom surface of the main stamping assembly 5. The lower mold plate 71 is located directly below the auxiliary stamping assembly 6 and is rotatably placed in the equipment base 1. One side of the lower mold plate 71 is symmetrically provided with a rectangular array of rib forming cavities 712, and the other side is symmetrically provided with a rectangular array of flat grooves, each of which includes a plurality of heat dissipation hole cavities 711 distributed in a ring array.

[0044] In one embodiment of the present invention, in order to improve the heat dissipation performance of the display, the auxiliary stamping assembly 6 is set to move first and the main stamping assembly 5 moves later, and the lower template 71 can switch to face different sides when both are moving.

[0045] When the secondary stamping assembly 6 is in operation, the heat dissipation hole die cavity 711 of the lower template 71 faces upward, and it cooperates with the secondary stamping assembly 6 to punch out multiple flat hole portions on the outer shell 96. Each flat hole portion includes at least three heat dissipation holes 91 distributed in a circular array. At the same time, flat ribs are formed between the multiple heat dissipation holes 91 to prepare for subsequent internal punching deformation. Next, when the main stamping assembly 5 is in operation, the lower template 71 switches to the rib forming die cavity 712 facing upward. The main stamping assembly 5 cooperates with the rib forming die cavity 712 to punch the flat rib into an inwardly convex rib 92, and opens a positioning slot 921 on the inwardly convex rib 92. At this time, the heat dissipation holes 91 also convex inward.

[0046] It is understandable that the advantages of this design are: first, a plurality of flat hole portions are first punched out by the auxiliary stamping component 6, which not only realizes the initial opening of the heat dissipation hole 91, but also simultaneously forms flat ribs, providing convenience for the subsequent stamping steps; secondly, the flat ribs are convex inwardly through the inner top action of the main stamping component 5 to form inner convex ribs 92, which can not only support and position the display motherboard from the inside when the display housing assembly 9 is assembled with the display motherboard, but also leave a heat dissipation gap so that heat can be dissipated from the heat dissipation hole 91; moreover, during the inner convex process of the flat ribs, the air intake area of ​​the heat dissipation hole 91 also extends into the heat dissipation gap, so that the heat generated by the display motherboard can be more smoothly discharged, thereby improving the heat dissipation efficiency; at the same time, when the inner convex ribs 92 convex into the heat dissipation gap, the heat exchange area can be increased, further improving the heat dissipation effect. Thirdly, when the flat ribs are stamped into the rib forming cavity 712, a positioning slot 921 can be opened on the inner convex rib 92 to facilitate the subsequent clamping and positioning of the dust screen plate 93. Finally, by designing a switchable lower template 71, the dual stamping requirements of the auxiliary stamping assembly 6 and the main stamping assembly 5 can be met, making the rotation switching operation of the lower template 71 simple. The lower template 71 can be rotated through the timing action of the auxiliary stamping assembly 6 and the main stamping assembly 5, which not only realizes the efficient stamping of the heat dissipation holes 91 on the outer shell 96, but also can utilize the inner convex ribs 92 and the extension of the heat dissipation holes 91 to improve the heat dissipation performance of the display.

[0047] like Figure 7-10 As shown, based on the above technical concept, in one embodiment of the present invention, in order to enable the main stamping assembly 5 and the auxiliary stamping assembly 6 to smoothly alternate, the following scheme is given: the main stamping assembly 5 includes a main stamping plate 51 and a main stamping drive rod 52, the main stamping drive rod 52 is provided in the middle section of the top of the main stamping plate 51, the top beam connecting plate 14 is installed at the top of the center column 13, the top of the main stamping drive rod 52 is fixedly connected to the top beam connecting plate 14, the bottom surface of the main stamping plate 51 is symmetrically provided with stamping guide columns 53 distributed in a rectangular array, and the bottom end of each stamping guide column 53 is provided with a hemispherical punch 54, and the inside of the hemispherical punch 54 is provided with a plurality of annular punch holes 541 distributed at equal intervals.

[0048] The auxiliary punch assembly 6 includes a punch needle fixing plate 61, which is arranged on one side of the bottom of the main punch plate 51. Each group of punch guide pins 53 on one side slides through the punch needle fixing plate 61 to achieve independent lifting relative to the main punch assembly. The top of the punch needle fixing plate 61 is fixedly connected to the punch needle driving rod 62. The punch needle driving rod 62 passes through the main punch plate and is arranged on the top surface of the main punch driving rod 52; the bottom surface of the punch needle fixing plate 61 is provided with multiple groups of punching parts 63, each group of punching parts 63 corresponds to a group of hemispherical punches 54, and the punching parts 63 include multiple annular The heat dissipation hole punches 631 are arranged at intervals, and each heat dissipation hole punch needle 631 is coaxial with the punch needle hole of the hemispherical punch and slides through it (that is, the heat dissipation hole punch needles slide through the punch needle holes of the hemispherical punch one by one), and are aligned with the heat dissipation hole cavity up and down to ensure that the heat dissipation holes are accurately formed; a cross-ribbed plate 7121 is provided in the middle of the inner part of the rib forming cavity 712, and when the flat rib is punched into the rib forming cavity 712 by the hemispherical punch 54, the cross-ribbed plate 7121 opens a positioning groove 921 in the middle of the bottom surface of the inner convex rib 92 in the opposite direction.

[0049] It should be noted that when punching the heat dissipation hole 91, the heat dissipation hole mold cavity 711 of the lower template 71 faces upward, and the main punch driving rod 52 drives the main punch plate 51 to descend, so that the hemispherical punch 54 contacts the outer shell 96. Subsequently, the punch needle driving rod 62 drives the punch needle fixing plate 61 to descend, and the punch needle fixing plate 61 drives the heat dissipation hole punch needle 631 to descend. The heat dissipation hole punch needle 631 slides through the punch needle through hole 541 of the hemispherical punch 54 and punches into the heat dissipation hole mold cavity 711, punching out the heat dissipation hole 91 on the outer shell 96. When the punching is completed, the main punching plate 51 and the punch needle fixing plate 61 are lifted up to complete the preliminary punching of the heat dissipation hole. The lower die plate 71 then rotates, positioning the rib-forming cavity 712 upward and the heat dissipation hole cavity 711 downward. The scrap material in the heat dissipation hole cavity 711 then automatically falls out. The main punch drive rod 52 then drives the main punch plate 51 downward again, causing the hemispherical punch 54 to contact and embed the flat rib into the rib-forming cavity 712, transforming the flat rib into an inwardly convex rib 92. This process not only efficiently stamps the heat dissipation hole 91, but also, through the formation of the inwardly convex rib 92, provides support and positioning for the subsequent assembly of the display mainboard. This also leaves a gap for heat dissipation, improving heat dissipation efficiency and optimizing the heat dissipation performance of the display.

[0050] In order to solve the problem of residual waste pieces during the stamping process and the stability of the lower template during stamping, in one embodiment of the present invention, it is proposed that a lower mold fixing frame 72 is provided at the second opening position 18, in which a blanking die cavity 11 is provided, and the two ends of the lower template 71 are rotatably embedded in the lower mold fixing frame 72, and a first motor 73 is installed at the rotating connection. When the lower template 71 needs to rotate, the first motor 73 is started to drive the lower template 71 to rotate, thereby realizing the switching of different processing surfaces. A waste blowing plate 74 is symmetrically and horizontally installed on the bottom of the lower template 71 for sliding. It is installed on a U-shaped frame, and the U-shaped frame is slidably installed on the bottom surface of the equipment base. The U-shaped frame is equipped with an electric rod for driving the waste blowing plate to rise and fall.

[0051] When the outer shell 96 is transferred to the lower mold fixing frame 72, the outer shell 96 is mounted on the lower mold fixing frame 72, and the first motor 73 drives the lower mold plate 71 to rotate. During the stamping process, the two sets of waste blowing plates 74 symmetrically contact the lower mold plate 71 from below to ensure the stability of the lower mold plate 71. When the heat dissipation hole mold cavity 711 is facing downward, the two sets of waste blowing plates 74 move inward synchronously under the drive of the electric rod, and the waste blowing plates 74 flush each heat dissipation hole mold cavity 711 upward, causing the waste pieces remaining in the heat dissipation hole mold cavity 711 to fall off, realizing automatic cleaning and ensuring the continuity and efficiency of the processing process. It can be understood that this structural design not only improves the stability of the lower mold plate 71 during stamping, but also effectively solves the problem of waste piece residue, thereby improving processing efficiency and product quality.

[0052] like Figure 11 As shown, in order to realize the automatic installation of the dustproof screen plate 93, in one embodiment of the present invention, it is proposed that an assembly positioning frame 87 is provided at the dustproof screen assembly station 19, an assembly mold cavity 12 is opened inside the assembly positioning frame 87, and a composite component 8 is installed outside the assembly mold cavity 12. The composite component 8 includes a shell pressure plate 81 and a second feeding guide rail 82; a shell pressure plate 81 is provided on the top of the assembly mold cavity 12, and a pressing drive rod 811 is provided on the top of the shell pressure plate 81. The pressing drive rod 811 is provided on the top The bottom surface of the beam connecting plate 14; the bottom of the assembly mold cavity 12 is provided with a second feeding guide rail 82, and the second feeding guide rail 82 extends longitudinally outward from the equipment base 1. The surface of the second feeding guide rail 82 is slidingly provided with two sets of dustproof mesh carriers 821, and the interior of the dustproof mesh carrier 821 is embedded with a dustproof mesh plate 93. A transfer pressing component is provided on one side of the second feeding guide rail 82, and the transfer pressing component is used to clamp the dustproof mesh plate 93 to the inner wall of the outer shell 96, so that the dustproof mesh plate 93 covers the inner convex rib 92.

[0053] Based on the above technical concept, it can be understood that the second feeding guide rail 82 drives the dustproof screen carrier plate 821 to move in and out, and the dustproof screen carrier plate 821 transfers the two sets of dustproof screen plates 93 to one side of the transfer pressing component. The outer shell 96 with the inner convex ribs 92 processed is transferred and sleeved on the assembly positioning frame 87. The pressing drive rod 811 drives the shell pressure plate 81 to press down the outer shell 96, and the transfer pressing component grabs the dustproof screen plate 93, lifts it up and buckles it on the outer shell 96.

[0054] like Figure 14-15 As shown, in one embodiment of the present invention, the transfer and pressing component includes a robot arm base 83, a horizontal positioning plate 831 is provided on the back of the robot arm base 83, the side of the robot arm base 83 is symmetrically connected to the adsorption arm driving rod 84 and a second motor 841 is installed at the rotating connection, the output end of the adsorption arm driving rod 84 is provided with a mesh adsorption head 85, and the four corners of the mesh adsorption head 85 are provided with a vacuum suction nozzle 851, and the vacuum suction nozzle 851 is used to adsorb the four corners of the dustproof mesh 93; the surface of the mesh adsorption head 85 is slidably installed with a mesh cover pressing roller 86; the vacuum suction nozzle 851 adsorbs the dustproof mesh 93 and covers each inner convex rib 92, and the mesh cover pressing roller 86 horizontally rolls each mesh cover 932 so that the cross positioning buckle 933 is stuck in the positioning slot 921.

[0055] Based on the above technical concept, it can be understood that the mesh adsorption head 85 is initially facing downward, and the vacuum suction nozzles 851 at the four corners of the mesh adsorption head 85 adsorb and position the four corners of the dustproof mesh plate 93, and then the second motor 841 drives the rod adsorption arm drive rod 84 to rotate outward to a vertical upward state, and the adsorption arm drive rod 84 drives the mesh adsorption head 85 to move upward, and the dustproof mesh plate 93 fits the inner wall of the outer shell 96, and the mesh cover 932 covers the outside of the inner convex rib 92, and then the mesh cover pressing roller 86 translates along the mesh adsorption head 85, and the mesh cover pressing roller 86 translates and rolls each mesh cover 932, so that the cross positioning buckle 933 is inserted into the positioning slot 921, so that the mesh cover 932 and each inner convex rib 92 are fully positioned, and the dustproof mesh plate 93 is firmly placed on the inner wall of the outer shell 96.

[0056] like Figure 4As shown, in order to achieve the simultaneous completion of the opening of the central assembly hole 95 and the positioning of the integrated assembly part 94, in one embodiment of the present invention, it is proposed that the first punching mechanism includes a central punching component 3, an assembly part grabbing component 4, a central blanking lower die 36 and a first feeding guide rail 2. The first feeding guide rail 2 is longitudinally installed below the first opening position 17. The surface of the first feeding guide rail 2 is slidably mounted with an assembly part carrier plate 21, and the surface of the assembly part carrier plate 21 is embedded with the integrated assembly part 94. The top of the first opening position 17 is provided with a central blanking lower die 36, and the middle of the central blanking lower die 36 is provided with a special-shaped die hole 361. The central punching component 3 and the central blanking lower die 36 cooperate to open the central assembly hole 95 in the middle of the outer shell 96. The assembly part grabbing component 4 descends to push out the waste sheet and lifts up to carry the integrated assembly part 94 to interference fit into the central assembly hole 95.

[0057] It can be understood that the equipment base 1 is provided with a through hole at the first opening position 17 that cooperates with the special-shaped die hole 361, and the first feeding guide rail 2 drives the assembly carrier 21 to move back and forth, and the transfer suction cup 15 adsorbs the outer shell 96 of the feeding station 16 and transfers the cover to the central punching lower die 36, and the middle punching component 3 descends to punch out the middle assembly hole 95, and the assembly grasping component 4 follows the middle punching component 3 and descends synchronously; then, the assembly grasping component 4 descends, and the waste sheet can be ejected first, and then the lifting component descends into the integrated assembly part 94, and then, the assembly grasping component 4 is lifted up, which can drive the integrated assembly part 94 to be interference inserted into the middle assembly hole 95.

[0058] In one embodiment of the present invention, the design purpose of the central punching assembly is to achieve high-precision punching of the central assembly hole 95 and synchronous automatic assembly of the integrated assembly part 94 through step-by-step coordinated actions. Specifically, the central punching assembly 3 includes a main punching drive rod 31, the top end of the main punching drive rod 31 is connected to the top beam connecting plate 14, the bottom end of the main punching drive rod 31 is connected to the pressure cover 32, the interior of the pressure cover 32 is installed with the assembly part grabbing assembly 4, the bottom of the pressure cover 32 is provided with a punching base plate 33, the two ends of the bottom surface of the punching base plate 33 are symmetrically provided with elastic pressure feet 34, the middle part of the punching base plate 33 is provided with a special-shaped punch 35, the middle part of the special-shaped punch 35 is a central guide tube 351 and is connected to the pressure cover 32, and the two sides of the central guide tube 351 are symmetrically provided with side punching blocks 352.

[0059] It can be understood that the main stamping drive rod 31 provides overall downward power, driving the pressure cover 32 and the special-shaped punch 35 to move downward, and the elastic pressure feet 34 on both sides first contact the outer shell 96 to achieve pre-tightening to avoid blanking deviation, and then press down the outer shell 96, and the side stamping block impacts the outer shell 96. At this time, the side stamping block 352 of the special-shaped punch 35 and the center guide tube 351 cooperate to impact the special-shaped die hole 361 of the center blanking lower die 36, accurately punching out the special-shaped middle assembly hole 95, thereby opening the middle assembly hole 95 of the required shape. It should be noted that, during this process, the central guide tube 351 serves as a guide channel for the assembly grasping component 4, allowing the expansion grasping head 42 to pass through it downward; after the expansion grasping head 42 is inserted into the assembly tube 941 of the integrated assembly part 94, it is expanded and locked by the wedge-shaped expansion plate 46, and when lifted up, it drives the integrated assembly part 94 to be inserted into the middle assembly hole 95 through interference; the assembly flange 943 contacts the inner wall of the outer shell 96 at the end point of the interference insertion, achieving millimeter-level assembly accuracy.

[0060] like Figure 5-Figure 6 As shown, in one embodiment of the present invention, in order to solve the efficiency and stability issues of inserting integrated assembly parts into the central assembly hole during the back hole processing of the display housing, it is proposed that the assembly part grabbing assembly 4 includes a grabbing lifting rod 41, which is arranged at the top of the pressure cover 32 and connected to the expansion grabbing head 42 at the bottom end. The expansion grabbing head 42 is vertically slidable inside the pressure cover 32 and has a smaller cross-sectional area than the central guide tube 351. The expansion grabbing head 42 is provided with an expansion drive rod 43 inside, and its bottom end is connected to a rack push plate 44. The rack push plate 44 symmetrically meshes with a gear 45 on both sides. The outer wall of the gear 45 is provided with a wedge-shaped expansion plate 46, which is tapered and fits in place.

[0061] It is understood that in the initial state, the grabbing lift rod 41 drives the expansion grabbing head 42 downward along the pressure cover 32. The expansion grabbing head 42 extends outward from the center guide tube 351 and inserts into the assembly tube 941. Subsequently, the expansion drive rod 43 drives the rack push plate 44 downward, driving the gear 45 to rotate, causing the wedge-shaped expansion plate 46 to rotate outward and expand, forming an eight-shaped contact with the inner wall of the assembly tube 941, thereby stabilizing the gripping assembly tube 941. Next, the expansion drive rod 43 retracts, driving the assembly tube 941 upward and off the assembly part carrier 21. The grabbing lift rod 41 continues to drive the expansion grabbing head 42, precisely inserting the integrated assembly part 94 into the central assembly hole 95 until the assembly flange 943 contacts the inner wall of the outer shell 96, completing the assembly. Finally, the grabbing lift rod 41 drives the expansion grabbing head 42 back into the pressure cover 32, preparing for the next work cycle. Through the above-mentioned fine mechanical transmission and precise drive control, stable grasping and efficient insertion of integrated assembly parts can be achieved, improving the degree of automation and assembly quality of the back hole processing of the display housing.

[0062] like Figure 16-19As shown, as the second aspect of the present invention, the present invention also proposes a display housing assembly 9 processed by a hole punching machine. Specifically, the display housing assembly 9 includes an outer shell 96, a middle assembly hole 95 is opened in the middle of the outer shell 96, and an integrated assembly part 94 is embedded in the interior of the middle assembly hole 95. The integrated assembly part 94 includes an assembly tube 941, and a threaded groove is opened in the interior of the assembly tube 941 for connecting an external bracket. Data interface boards 942 are symmetrically provided on both sides of the assembly tube 941 for connecting data cables. Assembly flanges 943 are provided at the outer edges of the bottom ends of the assembly tube 941 and the data interface board 942, and the assembly flanges 943 are stopped at the inner wall of the outer shell 96; the assembly tube 941 is used to threadably connect to the external bracket, and the data interface board 942 is symmetrically provided on both sides of the assembly tube 941 for connecting the data cable. The interface board 942 is used to connect various data cables, and the assembly flange 943 is used to stop and position the integrated assembly part 94 when it is lifted and inserted on the integrated assembly part 94; the outer surface of the outer shell 96 is symmetrically provided with inner convex ribs 92 distributed in a rectangular array, and the middle part of the inner end of the inner convex rib 92 is provided with a positioning slot 921, and the heat dissipation holes 91 are between the inner convex ribs 92; the dustproof mesh plate 93 includes a mesh plate frame 931, and the interior of the mesh plate frame 931 is provided with a mesh cover 932 in a rectangular array, and the middle part of the inner wall of the mesh cover 932 is provided with a cross positioning buckle 933, the mesh cover 932 covers the inner convex rib 92, and the cross positioning buckle 933 is interference fit in the positioning slot 921; the mesh cover 932 can block dust and prevent dust from entering the shell.

[0063] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0064] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A drilling machine for processing the back hole of a display housing, characterized in that: include: The equipment base is circularly arranged with a feeding station, a first opening position, a second opening position, and a dust screen assembly station on its surface, and a central column is provided at the center of the surface, with a horizontal top beam connecting plate fixed on the top of the central column; The transfer suction cup is rotatably mounted on the side wall of the central column and is used to rotate the outer shell between various workstations; A first punching mechanism is provided at the first opening position for punching a central assembly hole on the outer edge surface of the housing; The second punching mechanism is provided at the second opening position and includes: The main punch assembly is fixedly connected to the side wall of the center column, including a main punch plate and a main punch drive rod connected to the top beam connecting plate. The top of the main punch plate is connected to the main punch drive rod. The bottom of the main punch plate is symmetrically provided with punch guide pillars. The bottom end of each punch guide pillar is fixedly connected to a hemispherical punch with an annular punch needle through hole. The auxiliary punch assembly is symmetrically arranged on the bottom surface of the main punch assembly, including a punch pin fixing plate that is slidably sleeved on the outer wall of the punch guide column to achieve independent lifting relative to the main punch assembly. The top of the punch pin fixing plate is connected to the punch pin drive rod. The top of the punch pin drive rod passes through the main punch plate and extends above the main punch drive rod. The bottom of the punch pin fixing plate is fixedly connected to a plurality of punching parts with heat dissipation holes. The lower die assembly is located directly below the auxiliary stamping assembly and includes a lower die plate rotatably mounted in the equipment base. The two sides of the lower die plate are symmetrically provided with a rib forming die cavity and a heat dissipation hole die cavity, and each of the rib forming die cavities is provided with a cross ridge convex plate; The heat dissipation hole punching needle slides through the punching needle hole of the hemispherical punch and is aligned with the heat dissipation hole mold cavity, so as to punch out the heat dissipation hole and the flat rib to ensure the accurate formation of the heat dissipation hole; The rib forming die cavity is aligned with the hemispherical punch in the vertical direction, so as to force the flat rib to be convexly formed into an inwardly convex rib with a positioning slot, and to limit the heat dissipation hole from extending into the interior of the outer shell along with the inwardly convex rib. The first punching mechanism comprises: A center punching lower die is fixed on the top of the first opening position; The first feeding guide rail is longitudinally arranged below the equipment base, and an assembly component carrier plate embedded with integrated assembly components is slidably mounted on its surface; A middle punching assembly is connected to the top beam connecting plate and cooperates with the special-shaped die hole opened in the middle of the central punching lower die to punch out a middle assembly hole; An assembly part grabbing assembly is slidably arranged in the middle punching assembly, and is used to eject waste pieces and interference-insert the integrated assembly part into the middle assembly hole; The dustproof net assembly station is provided with an assembly positioning frame, an assembly mold cavity is opened inside the assembly positioning frame, and a composite component is installed outside the assembly mold cavity, wherein the composite component includes a shell pressure plate and a second feeding guide rail, the top of the assembly mold cavity is fixedly provided with a shell pressure plate, and a pressing drive rod is rotatably installed on the top of the shell pressure plate, and the pressing drive rod is provided on the bottom surface of the top beam connecting plate; a second feeding guide rail is fixedly provided with a second feeding guide rail at the bottom of the assembly mold cavity, the second feeding guide rail extends longitudinally outwardly from the equipment base, and two groups of dustproof net carriers are slidably provided on the surface of the dustproof net carrier plate, the dustproof net plate is embedded in the dustproof net carrier plate, and a transfer pressing component is provided on one side of the second feeding guide rail for clamping the dustproof net plate on the inner wall of the outer shell so that the dustproof net plate cover is closed on the inner convex rib; the dustproof net plate includes a net plate frame and a net cover arranged inside the net plate frame, a cross positioning buckle is provided in the middle section of the inner wall of the net cover, the net cover cover is closed on the inner convex rib, and the cross positioning buckle is interference fit in the positioning slot.

2. The drilling machine for processing the back hole of a display housing according to claim 1, characterized in that: The middle punching assembly includes: Main punch driving rod, the top end of which is fixedly connected to the top beam connecting plate; A pressure cover, fixedly connected to the bottom end of the main punch drive rod and accommodating the assembly part grabbing assembly therein; The stamping base plate is fixedly connected to the bottom end of the pressure cover. Elastic pressure feet are provided on both sides of the bottom of the stamping base plate, and a special-shaped punch is provided in the middle. The middle of the special-shaped punch is a central guide tube and is connected to the pressure cover. Side stamping blocks are symmetrically provided on both sides of the central guide tube to stabilize and guide the punching process and ensure punching accuracy.

3. The drilling machine for processing the back hole of a display housing according to claim 1, characterized in that: The assembly grabbing component comprises: Grab the lifting rod, which is located at the top of the pressure cover; The expansion grabbing head is fixedly connected to the bottom end of the grabbing lifting rod and is slidably sleeved in the central guide tube; The expansion drive rod is vertically arranged inside the expansion grabbing head, and the bottom end is connected to the rack push plate; The gear symmetrically meshes with both sides of the rack push plate, and a wedge-shaped expansion plate is radially fixed on its outer side wall for expanding and locking the integrated assembly.

4. The drilling machine for processing the back hole of a display housing according to claim 1, characterized in that: The lower mold assembly also includes: The lower die fixing frame is embedded in the second opening position and has a punching die cavity inside; A first motor, the output end of which is connected to the end of the lower template, for driving the lower template to rotate to switch the rib forming cavity and / or the heat dissipation hole cavity station; The waste blowing plate is horizontally slidably installed on the bottom of the lower template and is used for spraying air upward to clear the waste in the heat dissipation hole cavity.

5. The drilling machine for processing the back hole of a display housing according to claim 1, characterized in that: The transfer and pressing component includes a robotic arm base and a positioning plate. A horizontal positioning plate is provided on the back of the robotic arm base, and an adsorption arm driving rod is symmetrically connected to the side for rotation, and a second motor is installed at the rotating connection. A mesh adsorption head is provided at the output end of the adsorption arm driving rod, and vacuum suction nozzles are provided at the four corners of the mesh adsorption head to adsorb the four corners of the dustproof mesh. A mesh cover pressing roller is slidably installed on the surface of the mesh adsorption head, wherein the vacuum suction nozzle adsorbs the dustproof mesh cover on each inner convex rib, and the mesh cover pressing roller horizontally rolls each mesh cover so that the cross positioning buckle is inserted into the positioning slot.

6. The drilling machine for processing the back hole of a display housing according to claim 1, characterized in that: The integrated assembly part includes an assembly tube and a data interface plate. The data interface plates are symmetrically provided on both sides of the assembly tube. Assembly flanges are provided at the outer edges of the bottom ends of the assembly tube and the data interface plate for stopping against the inner wall of the shell during interference insertion.

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