Synchronous punching device for multiple holes in display shell

Abstract

The synchronous punching device comprises a rectangular base, a die holder with an arc-shaped upper surface is arranged above the middle of the base, connecting seats are formed on the lower portions of the left side wall and the right side wall of the die holder respectively, and the lower ends of the connecting seats are fixedly connected to the base; a plurality of longitudinally and evenly distributed die holes are formed in the two sides of the upper surface of the die base respectively, vertical punching punches are inserted into the die holes, and the lower ends of the punching punches stretch out of the die base to be fixedly connected to the punching base. The two sides of the die base are respectively provided with two sets of die pressing frames, each die pressing frame comprises a die pressing plate, a plurality of punched holes right opposite to the die holes are formed in the die pressing plates, and guide grooves inclined outwards are formed in the upper surfaces of the die pressing plates at the punched holes. The punching device is a simplified punching die, only the two sides of the rear shell of the display are clamped and positioned, punching machining is facilitated, meanwhile, a corresponding dredging structure is designed for waste generated by punching, waste output is facilitated, frequent manual cleaning is not needed, and normal use of the punching die cannot be affected.

Description

Technical Field

[0001] This invention relates to the technical field of display housing processing equipment, and more specifically to a synchronous drilling device for multiple holes in a display housing. Background Technology

[0002] A monitor housing is an external frame that protects internal components and provides structural support. The monitor housing includes a rectangular outer frame on the front and a monitor back cover on the rear. One existing monitor back cover structure is as follows: Figure 1 As shown, it has an arc-shaped back cover with longitudinally evenly distributed heat dissipation holes on both sides. The entire back cover of the monitor is injection molded, while the heat dissipation holes are formed by punching holes using a mold. The mold includes an upper mold that matches the upper surface of the back cover and a lower mold that matches the inner bottom surface of the back cover. The back cover is positioned and fixed by the upper mold moving down to close the mold, and then the punch in the upper mold moves down to punch holes. However, the structure of the entire mold is complex and requires high precision, resulting in high mold costs. Therefore, some have suggested that the actual processing parts are located on both sides of the back cover, and the middle part of the upper mold can be ignored. Thus, a simplified mold that only holds the two sides of the back cover can be designed to reduce costs. At the same time, the existing mold generates a lot of waste material during punching, and the existing mold is inconvenient to output waste material, requiring frequent manual cleaning, otherwise it will affect the punching process of the back cover. Therefore, when designing the above-mentioned simplified mold, it is necessary to consider the structure that facilitates the cleaning of punching waste. Summary of the Invention

[0003] The purpose of this invention is to address the shortcomings of existing technologies by providing a synchronous punching device for multiple holes on a display housing. The punching device is a simplified punching mold that only clamps and positions the two sides of the back shell of the display, which facilitates the punching process. At the same time, a corresponding drainage structure is designed for the waste generated during punching, which facilitates the cleaning of the waste.

[0004] A synchronous drilling device for multiple holes on a display casing includes a rectangular base. A mold base with an arc-shaped upper surface is located above the center of the base. Rectangular connecting seats are formed on the lower parts of the left and right side walls of the mold base, with the lower ends of the connecting seats fixed to the base. Several longitudinally evenly distributed, waist-shaped mold holes are formed on both sides of the upper surface of the mold base. Vertical drilling punches are inserted into the mold holes, with the lower ends of the punches extending out of the mold base and fixed to a punching seat, which is inserted into the base. Two sets of inclined pressing mold frames are provided on the left and right sides of the mold base. Each pressing mold frame includes a pressing plate with an arc-shaped lower surface and a longitudinal orientation. Several punches are formed on the pressing plate that are directly opposite the mold holes. Outwardly inclined guide grooves are formed on the upper surface of the pressing plate at the punching locations.

[0005] The front and rear ends of the pressing template are respectively extended from the mold base and fixed with inclined flipping arms. The lower end of the flipping arm is inserted with a longitudinal positioning pin, and the end of the positioning pin is inserted and fixed in the seat sleeve. The seat sleeve is respectively fixed on the front and rear end faces of the connecting seat. The lower end faces of the front and rear ends of the pressing template are respectively formed with transverse and dovetail-shaped slots. The slots are distributed at the front and rear of the flipping arm. The lower ends of the pressing template are respectively provided with actuators to drive the pressing template to flip and lock.

[0006] The actuator includes a guide seat fixed to the front and rear faces of the connecting seat. A horizontal dovetail-shaped guide rail groove is formed on the upper surface of the guide seat. A dovetail-shaped guide rail strip is inserted into the guide rail groove. A vertical connecting plate is formed on the upper end of the guide rail strip extending out of the guide seat. A dovetail-shaped snap-fit ​​block is formed on the side of the connecting plate away from the center of the base. The snap-fit ​​block is inserted into the snap-fit ​​groove of the pressing template.

[0007] The flipping arm of the pressure template is formed with a guide groove, and a longitudinal guide post is inserted into the guide groove. The outer end of the guide post abuts against the connecting plate of the actuator and is formed with a connecting post. The connecting plate is formed with a transverse limiting groove. The connecting post passes through the limiting groove of the connecting plate and is fixed with a limiting sleeve. The limiting sleeve abuts against the connecting plate. The end of the connecting post extends out of the limiting sleeve and is fixed with a transverse spring. The other end of the spring is fixed with a longitudinal connecting pin, which is inserted and fixed to the connecting plate. An end plate is fixed to the end face of the guide seat near the center of the base. A transverse actuator cylinder is fixed to the end plate. The piston rod of the actuator cylinder passes through the end plate and is fixed to the guide rail.

[0008] Preferably, the display back cover is fitted onto the mold base, and the pressing template presses against the upper surfaces of both sides of the display back cover, with the upper surface of the display back cover and the lower surface of the pressing template overlapping.

[0009] The bottom surface of the inner side of the display's rear shell abuts against the upper surface of the mold base, and the upper surface of the mold base coincides with the bottom surface of the inner side of the display's rear shell.

[0010] Preferably, the front side of the display back cover is formed with an inwardly recessed rectangular recess, and the upper surface of the front side of the mold base is formed with a relief groove opposite to the rectangular recess, and the rectangular recess is inserted into the relief groove of the mold base.

[0011] Preferably, the upper surface of the connecting seat is formed with a square pyramid-shaped material receiving port, and the bottom of the material receiving port is formed with a discharge port that penetrates the base.

[0012] Preferably, the length of the guide rail is equal to the length of the connecting plate, the length of the connecting plate is greater than the length of the limiting groove, and the length of the limiting groove is greater than the length of the snap-fit ​​block;

[0013] The stroke of the actuating cylinder is greater than the length of the clamping block inserted into the pressing plate.

[0014] Preferably, the diameter of the guide post is equal to the width of the guide groove on the flip arm, and the diameter of the connecting post on the guide post is equal to the width of the upper limit groove on the connecting plate.

[0015] Preferably, there is a gap between the flipping arm and the connecting seat, and a gap between the flipping arm and the snap-fit ​​block.

[0016] The beneficial effects of this invention are as follows:

[0017] This punching device is a simplified punching die, which only clamps and positions the two sides of the back shell of the display, making punching easier. At the same time, it is designed with a corresponding drainage structure for the waste generated by punching, which facilitates the output of waste. It does not require frequent manual cleaning and will not affect the normal use of the punching die. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the display back cover manufactured according to the present invention;

[0019] Figure 2 This is a three-dimensional structural schematic diagram of the present invention;

[0020] Figure 3 This is a frontal structural diagram of the present invention;

[0021] Figure 4 This is a side view of the structure of the present invention;

[0022] Figure 5 This is a three-dimensional structural diagram of the internal pressure mold frame of the present invention;

[0023] Figure 6 This is a schematic diagram showing the state after drilling is completed according to the present invention.

[0024] In the diagram: 1. Base; 2. Mold base; 21. Connecting seat; 22. Material inlet; 23. Material outlet; 3. Punching punch; 4. Pressing mold frame; 41. Pressing template; 42. Tilting arm; 43. Positioning pin; 44. Seat sleeve; 5. Actuating mechanism; 51. Guide seat; 52. Guide rail; 53. Actuating cylinder; 54. Guide column; 55. Limit sleeve; 56. Spring; 57. Connecting pin; 58. End plate; 6. Display back cover; 61. Heat dissipation hole. Detailed Implementation

[0025] Example: See Figures 2 to 5As shown, the synchronous punching device for multiple holes on the display casing includes a rectangular base 1. A mold base 2 with an arc-shaped upper surface is located above the center of the base 1. Rectangular connecting seats 21 are formed on the lower parts of the left and right side walls of the mold base 2, with the lower ends of the connecting seats 21 fixed to the base 1. Several longitudinally evenly distributed, waist-shaped mold holes are formed on both sides of the upper surface of the mold base 2. Vertical punches 3 are inserted into the mold holes, with the lower ends of the punches extending out of the mold base 2 and fixed to the punching seat. The hole seat is inserted on the base 1. A vertical punching cylinder (not shown in the figure) is fixed to the lower part of the base 1. The punching cylinder can drive the punch seat to move upward, thereby driving the punching punch 3 to move upward to punch holes. Two sets of inclined pressing mold frames 4 are provided on the left and right sides of the mold base 2. The pressing mold frame 4 includes a pressing plate 41 with an arc-shaped lower surface and a longitudinal orientation. Several punches 411 are formed on the pressing plate 41 that are directly opposite the mold hole. A guide groove 412 that is inclined outward is formed on the upper surface of the pressing plate 41 at the punch 411.

[0026] The front and rear ends of the pressing template 41 are respectively extended from the mold base 2 and fixed with inclined flipping arms 42. The lower end of the flipping arm 42 is inserted with a longitudinal positioning pin 43. The end of the positioning pin 43 is inserted and fixed in the seat sleeve 44. The seat sleeve 44 is respectively fixed on the front and rear end faces of the connecting seat 21. The lower end faces of the front and rear ends of the pressing template 41 are respectively formed with transverse and dovetail-shaped slots 413. The slots 413 are distributed in front and rear of the flipping arm 42. The lower ends of the pressing template 41 are respectively provided with actuators 5 for driving the pressing template 41 to flip and lock.

[0027] The actuator 5 includes a guide seat 51 fixed to the front and rear end faces of the connecting seat 21. A horizontal and dovetail-shaped guide rail groove 511 is formed on the upper end face of the guide seat 51. A dovetail-shaped guide rail bar 52 is inserted into the guide rail groove 511. The upper end of the guide rail bar 52 extends out of the guide seat 51 and is formed with a vertical connecting plate 521. A dovetail-shaped snap-fit ​​block 522 is formed on the side of the connecting plate 521 away from the center of the base 1. The snap-fit ​​block 522 is inserted into the snap-fit ​​groove 413 of the pressing template 41.

[0028] The flipping arm 42 of the pressing template 41 has a guide groove 421 formed therein, and a longitudinal guide post 54 is inserted into the guide groove 421. The outer end of the guide post 54 abuts against the connecting plate 521 of the actuator 5 and is formed with a connecting post 541. The connecting plate 521 has a transverse limiting groove 523 formed therein. The connecting post 541 passes through the limiting groove 523 of the connecting plate 521 and is fixed with a limiting sleeve 55. The limiting sleeve 55 abuts against the connecting plate 521. The end of the connecting post 541 extends out of the limiting sleeve 55 and is fixed with a transverse spring 56. The other end of the spring 56 is fixed with a longitudinal connecting pin 57, which is inserted and fixed to the connecting plate 521. An end plate 58 is fixed to the end face of the guide seat 51 near the center of the base 1. A transverse actuator cylinder 53 is fixed to the end plate 58. The piston rod of the actuator cylinder 53 passes through the end plate 58 and is fixed to the guide rail 52.

[0029] The display back cover 6 is fitted onto the mold base 2, and the pressing template 41 presses against the upper surfaces of both sides of the display back cover 6. The upper surface of the display back cover 6 and the lower surface of the pressing template 41 overlap; the inner sidewalls of the display back cover 6 abut against the sidewalls of the mold base 2.

[0030] The bottom surface of the inner side of the display back cover 6 abuts against the upper surface of the mold base 2. The upper surface of the mold base 2 and the bottom surface of the inner side of the display back cover 6 coincide, and the shape and structure of the mold base 2 are adapted to the shape and structure of the display back cover 6.

[0031] The front side of the display back cover 6 is formed with an inwardly recessed rectangular platform, and the upper surface of the front side of the mold base 2 is formed with a relief groove opposite to the rectangular platform. The rectangular platform is inserted into the relief groove of the mold base 2.

[0032] The upper surface of the connecting seat 21 is formed with a four-sided pyramid-shaped receiving port 22, and the bottom of the receiving port 22 is formed with a discharge port 23 that penetrates the base 1. The receiving port 22 can receive the punching waste that slides off the pressing template 41 and finally discharge it through the discharge port 23.

[0033] The length of the guide rail 52 is equal to the length of the connecting plate 521. The length of the connecting plate 521 is greater than the length of the limiting groove 523. The length of the limiting groove 523 is greater than the length of the snap-fit ​​block 522. When the snap-fit ​​block 522 is disengaged from the pressure plate 41, its guide rail 52 is not disengaged from the guide seat 51. The guide seat 51 supports the guide rail 52.

[0034] The stroke of the actuating cylinder 53 is greater than the length of the snap-fit ​​block 522 inserted into the pressing template 41.

[0035] The diameter of the guide post 54 is equal to the width of the guide groove 421 on the flip arm 42, and the diameter of the connecting post 541 on the guide post 54 is equal to the width of the upper limit groove 523 on the connecting plate 521.

[0036] There is a gap between the flipping arm 42 and the connecting seat 21, so that the mold frame 4 will not wear against the connecting seat 21 during the flipping process. The flipping arm 42 is fixed to the lower end face of the mold frame 4. There is a gap between the flipping arm 42 and the locking block 522, so that the locking block 522 will not interfere with the flipping arm 42 during the movement process.

[0037] Working principle: This structure is a synchronous punching device for multiple holes on the display shell. The punching device is a simplified punching mold for processing the heat dissipation holes 61 on both sides of the back shell 6 of the display. Its structure is simple and punching is convenient, which facilitates the processing of the heat dissipation holes 61. In specific processing, the back shell 6 of the display is placed on the mold base 2. The mold base 2 and the pressure plate 41 are used to clamp and position the two sides of the back shell 6 of the display. Then, the punching punch 3 is started to punch holes. The punching punch 3 will push the waste material out of the punch hole 411 of the pressure plate 41 and onto the bottom surface of the guide groove 412. Some waste material is retained on the pressure plate 41 and does not slide down the guide groove 412 into the receiving port 22.

[0038] After punching is completed, the actuator cylinder 53 is activated. The piston rod of the actuator cylinder 53 extends, driving the guide rail 52 to move to both sides of the mold base 2. However, during the outward movement of the guide rail 52, its locking block 522 first disengages from the pressure plate 41. Under the force of the spring 56, the position of its guide post 54 changes within the limiting groove 523. When its position relative to the mold base 2 remains unchanged, the pressure plate 41 continues to press against the display back cover 6. When the locking block 522 completely disengages from the pressure plate 41, its guide post 54 moves to the inner end of the limiting groove 523. Then, the guide rail 52 drives the guide post 54 to move outward. During the outward movement of the guide post 54, it drives the flipping arm 42 to rotate, causing the pressure plate 41 to move away from the display back cover 6 and outward. Figure 6 As shown, the waste material retained in the guide groove 412 can be moved out and fall into the receiving port 22; at the same time, without the restriction of the pressure plate 41, it is convenient to remove the display back cover 6 from the mold base 2; the mold base 2 of this application does not have the upper mold structure of the original mold, so the suction cup type robot can move directly to the top of the mold base 2 and directly hold the display back cover 6 to move it, which is much more convenient.

[0039] The embodiments described are illustrative of the invention and are not intended to limit the invention. Any person skilled in the art can modify the embodiments without departing from the spirit and scope of the invention; therefore, the scope of protection of the invention should be as set forth in the claims.

Claims

1. A synchronous drilling device for multiple holes on a display housing, comprising a rectangular base (1), a mold base (2) with an arc-shaped upper surface is provided above the middle of the base (1), and rectangular connecting seats (21) are respectively formed on the lower part of the left and right side walls of the mold base (2), the lower end of the connecting seat (21) being fixed to the base (1); several longitudinally evenly distributed and waist-shaped mold holes are respectively formed on both sides of the upper surface of the mold base (2), and vertical drilling punches (3) are inserted into the mold holes, the lower end of the drilling punches (3) extending out of the mold base (2) and fixed to the punching seat, the punching seat being inserted into the base (1); characterized in that: Two groups of obliquely arranged die racks (4) are arranged on the left and right sides of the die holder (2), the die rack (4) comprises a die plate (41) with a lower surface in a circular arc shape and in a longitudinal direction, a plurality of punching holes (411) are formed on the die plate (41) and are opposite to the die holes, an outwardly inclined material guide groove (412) is formed on the upper surface of the die plate (41) at the punching hole (411); The front and rear ends of the die plate (41) respectively extend out of the die holder (2) and are fixed with obliquely arranged turnover arms (42), the lower end of the turnover arm (42) is inserted with a longitudinal positioning pin (43), the tail end of the positioning pin (43) is inserted and fixed in the seat sleeve (44), and the seat sleeve (44) is fixed on the front and rear end faces of the connecting seat (21); a transversely dovetail-shaped clamping groove (413) is formed on the lower end face of the front and rear ends of the die plate (41), the clamping groove (413) is distributed in front of and behind the turnover arm (42), and an actuating mechanism (5) for turning over and locking the die plate (41) is arranged below the two ends of the die plate (41); The actuating mechanism (5) comprises a guide seat (51) fixed on the front and rear end faces of the connecting seat (21), a transversely dovetail-shaped guide rail groove (511) is formed on the upper end face of the guide seat (51), a dovetail-shaped guide rail strip (52) is inserted in the guide rail groove (511), a vertical link plate (521) is formed on the upper end of the guide rail strip (52) and extends out of the guide seat (51), a dovetail-shaped clamping block (522) is formed on the side of the link plate (521) away from the center of the base (1), and the clamping block (522) is inserted in the clamping groove (413) of the die plate (41); A guide groove (421) is formed on the turnover arm (42) of the die plate (41), a longitudinal guide column (54) is inserted in the guide groove (421), the outer end of the guide column (54) abuts against the link plate (521) of the actuating mechanism (5) and is formed with a connecting column (541), a transversely limiting groove (523) is formed on the link plate (521), the connecting column (541) passes through the limiting groove (523) of the link plate (521) and is inserted and fixed with a limiting sleeve (55), and the limiting sleeve (55) abuts against the link plate (521); the end of the connecting column (541) extends out of the limiting sleeve (55) and is fixed with a transversely spring (56), the other end of the spring (56) is fixed with a longitudinal connecting pin (57), and the connecting pin (57) is inserted and fixed in the link plate (521); an end plate (58) is fixed on the end face of the guide seat (51) close to the center of the base (1), a transversely actuating air cylinder (53) is fixed on the end plate (58), and the piston rod of the actuating air cylinder (53) is fixed on the guide rail strip (52) and passes through the end plate (58).

2. The apparatus according to claim 1, wherein: The die holder (2) is sleeved with a display rear shell (6), the die plate (41) is pressed against the upper surfaces on the two sides of the display rear shell (6), and the upper surface of the display rear shell (6) and the lower surface of the die plate (41) are coincident. The bottom surface of the inner side of the display backshell (6) abuts against the upper surface of the mold base (2), and the upper surface of the mold base (2) and the bottom surface of the inner side of the display backshell (6) coincide.

3. The apparatus according to claim 2, wherein: The front side of the display backshell (6) is formed with a rectangular recessed platform inwardly recessed, and the upper surface of the front side of the mold base (2) is formed with an avoiding groove opposite to the rectangular recessed platform, and the rectangular recessed platform is inserted into the avoiding groove of the mold base (2).

4. The apparatus according to claim 1, wherein: The upper end surface of the connecting seat (21) is formed with a four-prism-shaped material receiving port (22), and the bottom of the material receiving port (22) is formed with a material discharging port (23) penetrating through the base (1).

5. The apparatus according to claim 1, wherein: The length of the guide rail strip (52) is equal to the length of the connecting plate (521), the length of the connecting plate (521) is greater than the length of the limiting groove (523), and the length of the limiting groove (523) is greater than the length of the clamping block (522). The stroke of the execution cylinder (53) is greater than the length of the clamping block (522) inserted into the mold plate (41).

6. The apparatus according to claim 1, wherein: The diameter of the guide column (54) is equal to the slot width of the guide groove (421) on the turnover arm (42), and the diameter of the connecting column (541) on the guide column (54) is equal to the slot width of the limiting groove (523) on the connecting plate (521).

7. The apparatus according to claim 1, wherein: The turnover arm (42) and the connecting seat (21) are provided with a gap, and the turnover arm (42) and the clamping block (522) are provided with a gap.

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