Intelligent drilling machine for printed circuit board
Through the design of the intelligent drilling machine, components such as U-shaped frame and electric push rod can be used to achieve rapid replacement of drill bits and accurate alignment, which solves the problem that existing equipment cannot quickly replace drill bits and drill bits, and improves drilling efficiency and Accuracy.
Patent Information
- Application Number
- CN202421552651.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-07-03
AI Technical Summary
Existing circuit board drilling equipment cannot quickly replace drill bits of different sizes, resulting in inefficient drilling and easy deformity during the drilling process, affecting accuracy.
A printed circuit board intelligent drilling machine is designed, using U-shaped frame, fixed block, ring guide rail, mobile block, spring body, slider, electric push rod and position sensor and other components, through electric push rod and spring rod Cooperate to achieve rapid replacement of drill bits and accurate alignment of position, ensuring that drilling tools of different sizes can be quickly replaced and accurately aligned.
It realizes rapid replacement of drilling tools and accurate alignment of position, improves drilling efficiency and accuracy, avoids drilling bit deformation, and ensures the accuracy of drilling operations of different hole diameters.
Smart Images
Figure CN222245146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of circuit boards, in particular to an intelligent drilling machine for printed circuit boards. Background Art
[0002] When drilling holes in a printed circuit board, since the holes to be drilled on the circuit board have different diameters, it is necessary to frequently replace drill bits of different diameters to drill holes of different diameters. Existing circuit board drilling equipment cannot quickly replace drill bits of different sizes to meet the drilling requirements of different diameters. In order to improve drilling efficiency, drilling operations are usually performed on multiple layers of circuit boards stacked together at the same time. When drilling holes of smaller diameters on multiple layers of circuit boards at the same time, since the diameter of the drill bit used is small and the rigidity of the drill bit is insufficient, it is easy to deform when drilling at high speed, resulting in the drill bit being difficult to align with the position of the hole to be drilled on the multiple layers of circuit boards stacked together. Utility Model Content
[0003] In order to overcome the shortcoming that the existing circuit board drilling equipment cannot quickly replace drill bits of different sizes to meet the drilling requirements of different hole diameters, the utility model provides an intelligent drilling machine for printed circuit boards.
[0004] The technical scheme is as follows: A printed circuit board intelligent drilling machine includes a drilling assembly for drilling holes in a circuit board body; it also includes a U-shaped frame, a fixed block, a circular guide rail, a moving block, a spring body, a slider, a drill bit I, an electric push rod I, an electric push rod II, a mounting block and a motor I; the drilling assembly is connected to the U-shaped frame; the U-shaped frame is fixedly connected to the fixed block; the fixed block is fixedly connected to the circular guide rail; the circular guide rail is slidably connected to a plurality of moving blocks; each moving block is provided with a slide groove; each slide groove is fixedly connected to a spring Spring body; each slide groove is slidably connected with a slider, and the slider is fixedly connected to the spring body; each slider is connected to a drill bit I, and each end of each drill bit I is fixedly connected to a clamping block; each fixed block is fixedly connected to an electric push rod I; the U-shaped frame is fixedly connected to an electric push rod II; the telescopic end of the electric push rod II is fixedly connected to a mounting block, and the mounting block is slidably connected to the fixed block; the mounting block is fixedly connected to a motor I, and the output shaft of the motor I passes through the mounting block, and the output shaft of the motor I is provided with a clamping groove, and the clamping groove corresponds to the clamping block.
[0005] Optionally, it also includes a disc, a connecting disc, a spring rod I, a cover shell I, a position sensor, an electric push rod III, a motor II, a drill bit II, a spring rod II and a cover shell II; the drill bit I is fixedly connected to the disc; the disc is rotatably connected to the connecting disc; the connecting disc is fixedly connected to a plurality of spring rods I; the telescopic ends of all the spring rods I are commonly fixedly connected to the cover shell I, and the drill bit I passes through the cover shell I; a position sensor is fixedly connected inside the cover shell I; the U-shaped frame is fixedly connected to the electric push rod III; the telescopic end of the electric push rod III is fixedly connected to the motor II; the output shaft of the motor II is fixedly connected to the drill bit II, and the size of the drill bit II is the same as that of the drill bit I; the telescopic end of the electric push rod III is fixedly connected to a plurality of spring rods II; the telescopic ends of all the spring rods II are commonly fixedly connected to the cover shell II, and the same position sensor is arranged inside the cover shell II.
[0006] Optionally, an annular rubber pad is provided on the outer side of each of the cover shells I and II.
[0007] Optionally, cover shell I and cover shell II are each connected by a plurality of connecting pipes.
[0008] Optionally, a cleaning box is also included; the fixing block is fixedly connected with the cleaning box.
[0009] The beneficial effect of the utility model is as follows: the utility model controls the electric push rod I to shorten, and then the slider and the drill bit I move along the slide groove to the side close to the center of the annular guide rail under the action of the rebound force of the spring body, until the drill bit I is separated from the output shaft of the motor I, then the annular guide rail is controlled to make all the moving blocks rotate synchronously by a predetermined angle until another drill bit I with a larger diameter is located directly below the motor I, then the electric push rod I is controlled to extend to push the corresponding slider and the drill bit I to move to the side away from the center of the annular guide rail, and the corresponding spring body is stretched until the corresponding drill bit I is located directly below the output shaft of the motor I, thereby completing the rapid replacement of drilling tools of different sizes.
[0010] The utility model drives the spring rod I, the cover shell I and the position sensor to move downward through the connection disk. After the cover shell I and the position sensor contact the upper side of the circuit board body above, the spring rod I is compressed. Then, the electric push rod III is controlled to drive the motor II, the drill bit II, the spring rod II and the cover shell II to move upward until the cover shell II and the position sensor inside the cover shell II contact the lower side of the circuit board body below. Then, the spring rod II is compressed. At this time, the induction signals respectively sent by the two position sensors are mutually detected, thereby ensuring that the drill bit I is aligned with the drill bit II, thereby making the drilling position accurate. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the structure disclosed by the utility model of the intelligent drilling machine for printed circuit boards;
[0012] Figure 2A schematic diagram of the combined partial structure of a U-shaped frame, a fixed block, a circular guide rail, a moving block, an electric push rod II, a mounting block, a motor I, an electric push rod III, a motor II, a drill bit II, and a spring rod II disclosed in the utility model of the printed circuit board intelligent drilling machine;
[0013] Figure 3 A schematic diagram of the combined partial structure of the fixed block, annular guide rail, moving block, spring body, slider, drill bit I, electric push rod I, motor I, disc, connecting disc, and spring rod I disclosed by the utility model of the printed circuit board intelligent drilling machine;
[0014] Figure 4 A schematic diagram of the combined partial structure of the spring rod I, cover shell I, position sensor, drill bit II, spring rod II, and cover shell II disclosed by the utility model of the printed circuit board intelligent drilling machine;
[0015] Figure 5 The utility model is a schematic diagram of the combined partial structure of the motor Ⅰ and the drill bit Ⅰ disclosed in the intelligent drilling machine for printed circuit boards.
[0016] Markings in the accompanying drawings: 1-base, 2-clamping frame, 3-mechanical arm, 4-circuit board body, 101-U-shaped frame, 102-fixed block, 103-annular guide rail, 104-moving block, 105-spring body, 106-slider, 107-drill bit I, 108-electric push rod I, 109-electric push rod II, 1010-mounting block, 1011-motor I, 1012-disc, 1013-connecting disk, 1014-spring rod I, 1015-cover shell I, 1016-position sensor, 1017-electric push rod III, 1018-motor II, 1019-drill bit II, 1020-spring rod II, 1021-cover shell II, 1022-cleaning box, 1023-baffle, 105a-slide, 1015a-connecting pipe. DETAILED DESCRIPTION
[0017] The following description is only a preferred embodiment of the present invention and does not limit the protection scope of the present invention.
[0018] Example
[0019] A printed circuit board intelligent drilling machine, such as Figure 1-5 As shown, it includes a drilling assembly for drilling holes in the circuit board body 4;
[0020] It also includes a U-shaped frame 101, a fixed block 102, an annular guide rail 103, a moving block 104, a spring body 105, a slider 106, a drill bit I 107, an electric push rod I 108, an electric push rod II 109, a mounting block 1010 and a motor I 1011; the drilling assembly is connected to the U-shaped frame 101; the U-shaped frame 101 is fixedly connected to the fixed block 102; the fixed block 102 is bolted to the annular guide rail 103; the annular guide rail 103 is slidably connected to a plurality of moving blocks 104; each moving block 104 is provided with a slide groove 105a; each slide groove 105a is fixedly connected to a spring body 105; each slide groove 105a is slidably connected to a slider 1 06, and the slider 106 is fixedly connected to the spring body 105; each slider 106 is connected to a drill bit Ⅰ107, and each end of the drill bit Ⅰ107 is fixedly connected to a clamping block; each fixed block 102 is bolted to an electric push rod Ⅰ108; the U-shaped frame 101 is bolted to an electric push rod Ⅱ109; the telescopic end of the electric push rod Ⅱ109 is fixedly connected to a mounting block 1010, and the mounting block 1010 is slidably connected to the fixed block 102; the mounting block 1010 is bolted to a motor Ⅰ1011, and the output shaft of the motor Ⅰ1011 passes through the mounting block 1010, and the output shaft of the motor Ⅰ1011 is provided with a clamping groove, and the clamping groove corresponds to the clamping block.
[0021] The drilling assembly includes a base 1 , a clamping frame 2 and a mechanical arm 3 ; the base 1 is fixedly connected to two clamping frames 2 ; the base 1 is bolted to the mechanical arm 3 , and the mechanical arm 3 is fixedly connected to the U-shaped frame 101 .
[0022] It also includes a disc 1012, a connecting disc 1013, a spring rod I 1014, a cover shell I 1015, a position sensor 1016, an electric push rod III 1017, a motor II 1018, a drill bit II 1019, a spring rod II 1020 and a cover shell II 1021; the drill bit I 107 is fixedly connected to the disc 1012; the disc 1012 is rotatably connected to the connecting disc 1013; the connecting disc 1013 is fixedly connected to two spring rods I 1014; the telescopic ends of all the spring rods I 1014 are commonly fixedly connected to the cover shell I 1015, and the drill bit I 107 passes through the cover shell I 1015; A position sensor 1016 is fixedly connected in the cover shell I 1015; an electric push rod III 1017 is bolted to the U-shaped frame 101; the telescopic end of the electric push rod III 1017 is bolted to the motor II 1018; a drill bit II 1019 is fixedly connected to the output shaft of the motor II 1018, and the size of the drill bit II 1019 is the same as that of the drill bit I 107; two spring rods II 1020 are fixedly connected to the telescopic end of the electric push rod III 1017; the telescopic ends of all the spring rods II 1020 are commonly fixedly connected to the cover shell II 1021, and the same position sensor 1016 is arranged in the cover shell II 1021.
[0023] An annular rubber pad is provided on the outer side of the cover shell Ⅰ1015 and the cover shell Ⅱ1021.
[0024] The cover shell I 1015 and the cover shell II 1021 are each connected by two connecting pipes 1015a.
[0025] The cleaning box 1022 is also included; the fixing block 102 is fixedly connected to the cleaning box 1022 .
[0026] It also includes a baffle 1023; the baffle 1023 is fixedly connected to the lower side of the cleaning box 1022, and the baffle 1023 is located below the drill bit I 107.
[0027] When in use, first connect the external pump to the connecting pipe 1015a on the cover shell Ⅰ1015 and the cover shell Ⅱ1021, connect the external air pump to the cleaning box 1022, then manually put the two circuit board bodies 4 to be drilled into the clamping frame 2, and clamp the circuit board bodies 4 with the spring clamping plate of the clamping frame 2. Then, control the mechanical arm 3 to move the drill bit Ⅰ107 to the position directly above the drilling position on the circuit board body 4. In the initial state, the slider 106 and the drill bit Ⅰ107 are located directly below the output shaft of the motor Ⅰ1011 under the push of the electric push rod Ⅰ108, and the clamping of the drill bit Ⅰ107 is The connecting block is inserted into the connecting groove of the output shaft of motor Ⅰ1011, and the spring body 105 is stretched. Then, the motor Ⅰ1011 is controlled to start, and the drill bit Ⅰ107 is driven to rotate by the output shaft of motor Ⅰ1011. The drill bit Ⅰ107 rotates on the slider 106. Subsequently, the electric push rod Ⅱ109 is controlled to drive the mounting block 1010 and the motor Ⅰ1011 to move downward, so that the drill bit Ⅰ107 moves downward when rotating. After the drill bit Ⅰ107 contacts the circuit board body 4, the drill bit Ⅰ107 drills the two circuit board bodies 4 at the same time until the drill bit Ⅰ107 passes through the two circuit board bodies 4 and the drilling is completed.
[0028] When it is necessary to drill holes of different diameters, the electric push rod Ⅰ108 is controlled to shorten, and then the slider 106 and the drill bit Ⅰ107 move along the slide groove 105a to the side close to the center of the annular guide rail 103 under the action of the rebound force of the spring body 105, until the clamping block of the drill bit Ⅰ107 is disengaged from the clamping groove of the output shaft of the motor Ⅰ1011. It should be noted that the docking method of the clamping block and the clamping groove belongs to the existing disassembly and assembly method. Then, the annular guide rail 103 is controlled to make all the moving blocks 104 rotate synchronously by a predetermined angle until another drill bit Ⅰ107 with a larger diameter is located directly under the motor Ⅰ1011. Then, the electric push rod Ⅰ108 is controlled to extend and push the corresponding slider 106 and drill bit Ⅰ107 to move to the side away from the center of the annular guide rail 103, and the corresponding spring body 105 is stretched until the corresponding clamping block of the drill bit Ⅰ107 is located in the clamping groove of the output shaft of the motor Ⅰ1011, thereby completing the rapid replacement of drilling tools of different sizes.
[0029] When the drill bit Ⅰ107 moves downward to drill a smaller hole in the circuit board body 4, the electric push rod Ⅱ109 causes the drill bit Ⅰ107 to drive the disc 1012 and the connecting disc 1013 to move downward, and the connecting disc 1013 drives the spring rod Ⅰ1014, the cover shell Ⅰ1015, and the position sensor 1016 to move downward. After the cover shell Ⅰ1015 and the position sensor 1016 contact the upper side of the circuit board body 4 above, the spring rod Ⅰ1014 is compressed, and then the electric push rod Ⅲ1017 is controlled to drive the motor Ⅱ1018, the drill bit Ⅱ1019, the spring rod Ⅱ1020, and the cover shell Ⅱ1021 to move upward. The cover shell Ⅱ 1021 and the position sensor 1016 inside the cover shell Ⅱ 1021 contact the lower side of the circuit board body 4 below, and the spring rod Ⅱ 1020 is compressed. At this time, the sensing signals emitted by the two position sensors 1016 are mutually detected to ensure that the drill bit Ⅰ 107 is aligned with the drill bit Ⅱ 1019, so that the drilling position is accurate. When drilling a hole with a larger aperture, the drill bit Ⅰ 107 used has a larger diameter and greater rigidity, and is not easily deformed when drilling at a high speed, so that the holes on the two circuit board bodies 4 can be drilled relatively accurately at the same time.
[0030] Next, control motor I1011 to start, and drive drill bit I107 to rotate through the output shaft of motor I1011. At the same time, control motor II1018 to start, and drive drill bit II1019 to rotate through the output shaft of motor II1018, so that drill bit I107 and drill bit II1019 drill holes in the two circuit board bodies 4 at the same time, ensuring that the holes drilled on the two circuit board bodies 4 at the same time will not deviate.
[0031] Since the cover shell I 1015 and the cover shell II 1021 cover the drilling position of the circuit board body 4, the debris generated during drilling will not splash. When drilling, the external pump is controlled to start, and the two connecting pipes 1015a on the cover shell I 1015 and the cover shell II 1021 are sucked to remove the debris in the cover shell I 1015 and the cover shell II 1021. At the same time, the outside air is sucked in from the other connecting pipe 1015a on the cover shell I 1015 and the cover shell II 1021, and the drill bit I 107, the drill bit II 1019 and the drilling position are cooled. In addition, an annular rubber pad is provided on the outer side of the cover shell I 1015 and the cover shell II 1021, so that the cover shell I 1015 and the cover shell II 1021 fit tightly on the circuit board body 4, thereby reducing the vibration generated during drilling and improving the drilling accuracy.
[0032] When the drill bit Ⅰ107 is replaced, some debris will adhere to the drill bit Ⅰ107 and the inside of the cover shell Ⅰ1015, so that when the drill bit Ⅰ107 is moved on the annular guide rail 103 for replacement, the debris will fall onto the circuit board body 4, causing inconvenience for subsequent cleaning. Therefore, when the annular guide rail 103 drives the moving block 104 to replace the drill bit Ⅰ107, the external air pump is controlled to start and the cleaning box 1022 is sucked, so that when the drill bit Ⅰ107 passes through the cleaning box 1022, the debris adhered to the drill bit Ⅰ107 is sucked away by the cleaning box 1022, and the debris dropped from the bottom of the cover shell Ⅰ1015 is collected by the baffle 1023 to prevent the debris dropped from the inside of the cover shell Ⅰ1015 from falling directly onto the circuit board body 4.
[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A printed circuit board intelligent drilling machine, characterized in that: The invention comprises a drilling assembly for drilling holes in a circuit board body (4); and also comprises a U-shaped frame (101), a fixed block (102), an annular guide rail (103), a moving block (104), a spring body (105), a slider (106), a drill bit I (107), an electric push rod I (108), an electric push rod II (109), a mounting block (1010) and a motor I (1011); the drilling assembly is connected to the U-shaped frame (101); the U-shaped frame (101) is fixedly connected to the fixed block (102); the fixed block (102) is fixedly connected to the annular guide rail (103); the annular guide rail (103) is slidably connected to a plurality of moving blocks (104); each moving block (104) is provided with a slide groove (105a); each slide groove (105a) is fixedly connected to a spring body (105); each Each slide block (106) is slidably connected in the slide groove (105a), and the slide block (106) is fixedly connected to the spring body (105); each slide block (106) is connected to a drill bit I (107), and each end of each drill bit I (107) is fixedly connected to a clamping block; each fixed block (102) is fixedly connected to an electric push rod I (108); the U-shaped frame (101) is fixedly connected to an electric push rod II (109); the telescopic end of the electric push rod II (109) is fixedly connected to a mounting block (1010), and the mounting block (1010) is slidably connected to the fixing block (102); the mounting block (1010) is fixedly connected to a motor I (1011), and the output shaft of the motor I (1011) passes through the mounting block (1010), and the output shaft of the motor I (1011) is provided with a clamping groove, and the clamping groove corresponds to the clamping block.
2. The intelligent printed circuit board drilling machine according to claim 1, characterized in that: The invention also comprises a disc (1012), a connecting disc (1013), a spring rod I (1014), a cover shell I (1015), a position sensor (1016), an electric push rod III (1017), a motor II (1018), a drill bit II (1019), a spring rod II (1020) and a cover shell II (1021); the drill bit I (107) is fixedly connected to the disc (1012); the disc (1012) is rotatably connected to the connecting disc (1013); the connecting disc (1013) is fixedly connected to a plurality of spring rods I (1014); the telescopic ends of all the spring rods I (1014) are fixedly connected to the cover shell I (1015), and the drill bit I (107) passes through the cover shell I (1015). 1015); a position sensor (1016) is fixedly connected inside the cover shell I (1015); an electric push rod III (1017) is fixedly connected to the U-shaped frame (101); a motor II (1018) is fixedly connected to the telescopic end of the electric push rod III (1017); a drill bit II (1019) is fixedly connected to the output shaft of the motor II (1018), and the size of the drill bit II (1019) is the same as that of the drill bit I (107); a plurality of spring rods II (1020) are fixedly connected to the telescopic end of the electric push rod III (1017); the telescopic ends of all the spring rods II (1020) are fixedly connected to the cover shell II (1021), and the cover shell II (1021) is provided with the same position sensor (1016).
3. The intelligent printed circuit board drilling machine according to claim 2, characterized in that: An annular rubber pad is provided on the outer side of each of the cover shells I (1015) and II (1021).
4. The intelligent printed circuit board drilling machine according to claim 3, characterized in that: The cover shell I (1015) and the cover shell II (1021) are each connected via a plurality of connecting pipes (1015a).
5. The intelligent printed circuit board drilling machine according to claim 4, characterized in that: It also includes a cleaning box (1022); the fixing block (102) is fixedly connected to the cleaning box (1022).