A solder mask alignment base and a method of using the same

Abstract

The present invention provides a base for solder mask alignment and a method for using the base, comprising a moving platform driven by a first linear slide, a strip slot hole being provided on the top surface of the moving platform, a second linear slide being provided below the strip slot hole, two second sliding blocks on the second linear slide extending into the strip slot hole, and driving a limit frame to move and perform alignment adjustment on the positions of two sides of a circuit board; a first lead screw and a second lead screw are provided at both ends of the limit frame through a bearing frame, the first lead screw and the second lead screw are respectively driven by independent motors, a first stop bar is provided on the first lead screw for sliding movement, and a second stop bar is provided on the second lead screw for sliding movement, the first stop bar and the second stop bar are used for clamping the two ends of the circuit board; a push rod motor is provided at the middle part of the bottom surface of the moving platform, a supporting plate is provided at the end of the piston rod of the push rod motor for supporting the circuit board; the circuit board can be mechanically aligned to ensure the accuracy of the alignment, facilitate the subsequent secondary alignment of multiple solder mask processes, and improve the alignment accuracy and product quality.

Description

Technical Field

[0001] The present invention relates to the field of solder resist alignment equipment, and more specifically, to a solder resist alignment base and a use method thereof. Background Art

[0002] Solder mask is a link in the processing of circuit boards. Most of the existing solder mask equipment is manually aligned. The circuit board is placed at the corresponding marked position, and then the solder mask operation is performed. This method of alignment is prone to human operation errors, and the existing solder mask equipment does not have a circuit board fixing structure. Therefore, the PCB board is prone to shifting during the solder mask process, resulting in inaccurate alignment exposure and deviation. It is even more difficult to ensure accurate alignment for multiple solder mask processes. Summary of the invention

[0003] In order to overcome the defects of the prior art, the technical problem to be solved by the present invention is to propose a solder mask alignment base and a method of using the same. The alignment base has a novel structure, can perform mechanical alignment on the circuit board, ensure the accuracy of the alignment, and facilitate the subsequent secondary alignment of multiple solder mask processes, thereby improving the alignment accuracy and thus improving product quality.

[0004] To achieve this object, the present invention adopts the following technical solutions:

[0005] The present invention provides a base for solder mask alignment, comprising a base, a first linear slide fixedly arranged on both sides of the top surface of the base, a first slider slidably arranged on the first linear slide, a moving platform fixedly supported on the top surfaces of the two first sliders, the moving platform comprising a first support plate, the top surface of the first support plate is fixed on the two first sliders, vertical plates are fixedly arranged on both sides of the top surface of the first support plate, a second support plate is fixedly arranged on the top surfaces of the two vertical plates, a strip slot is opened on the top surface of the second support plate, and the extension direction of the strip slot is consistent with the extension direction of the first linear slide. The extension direction is perpendicular, a second linear slide is provided below the strip slot, the second linear slide is a double-slider linear module, two second sliders that are synchronously approached or synchronously separated are slidably provided on the second linear slide, the two second sliders extend into the strip slot, and the top surface is flush with the top surface of the second support plate; a limit frame is installed on the top surface of each second slider, and the two limit frames move with the two second sliders to adjust the position of the two sides of the circuit board; the two sides of the limit frame are open, and the two ends of the limit frame are provided with a first lead screw and a second lead screw through a bearing frame Two lead screws, the first lead screw and the second lead screw are parallel, and the extension direction is perpendicular to the extension direction of the second linear slide, the first lead screw is located on the side of the second lead screw close to the center of the second support plate; the first lead screw is driven by the first motor, a third slider is provided on the first lead screw, a first baffle is fixedly provided on the side of the third slider away from the second lead screw, the first baffle protrudes from one side opening of the limit frame, the second lead screw is driven by the second motor, a fourth slider is provided on the second lead screw, a second baffle is fixedly provided on the side of the fourth slider close to the first lead screw, the second baffle protrudes from one side opening of the limit frame, the bottom surfaces of the first baffle and the second baffle are flush with each other, and the top surfaces are flush with each other; a support frame is fixedly installed on the middle part of the bottom surface of the second support plate, a push rod motor is installed on the support frame, the piston rod of the push rod motor is arranged upward, and a sleeve is fixedly provided on the outside, the sleeve passes through the strip-shaped slot, and a supporting plate is installed on the top; the first linear slide, the second linear slide, the first motor, the second motor, and the push rod motor are all electrically connected to the control panel.

[0006] In a preferred technical solution of the present invention, the outer wall of the sleeve is a square structure and slides along two opposite side walls of the strip-shaped slot; the supporting plate is fixed to the top end of the sleeve by screws.

[0007] In a preferred technical solution of the present invention, a ring body is provided on the second baffle, and the first lead screw passes through the ring body.

[0008] In a preferred technical solution of the present invention, the top surface and bottom surface of the third slider, and the top surface and bottom surface of the fourth slider are provided with guide blocks, and the top inner wall and the bottom inner wall of the limit frame are provided with guide grooves corresponding to the guide blocks, and the third slider and the fourth slider slide along the corresponding guide grooves through the corresponding guide blocks.

[0009] In a preferred technical solution of the present invention, the control panel is provided with a touch display screen and control buttons.

[0010] A method for using a solder mask alignment base comprises the following steps:

[0011] S1, input the size of the circuit board to be processed into the control panel, and the control panel prompts to select the corresponding size of the support board through the touch screen, and the staff replaces and installs it according to the prompt; and the control panel sets the corresponding alignment and movement route, and keeps a record of the batch of circuit boards;

[0012] S2, the first linear slide drives the entire mobile platform to move outward, the staff places the circuit board to be processed on the support plate, and then the first linear slide drives the entire mobile platform to move inward according to the preset route;

[0013] S3, the push rod motor starts and pushes the circuit board to the preset position;

[0014] S4, the second linear slide is started, and the second slide drives the limit frame to align the two sides of the circuit board;

[0015] S5, the first motor and the second motor are started, driving the first stop bar and the second stop bar to move, so as to align the two ends of the circuit board, thereby determining the position of the circuit board;

[0016] S6, after the solder resist is completed, the first motor, the second motor, and the second linear slide are reset to release the clamping of the circuit board; the first linear slide drives the moving table to move outward, and the push rod motor lifts the circuit board again to facilitate the loading and unloading of materials;

[0017] S7, when performing multiple solder mask operations, the alignment route record of this batch of circuit boards can be directly called on the control panel to perform accurate multiple solder mask alignment.

[0018] Furthermore, in step S1, the dimensions of the circuit board include length, width, and thickness; and at least four optical alignment points are added to the outer plate portion of the circuit board to facilitate secondary alignment exposure by the solder mask machine.

[0019] The beneficial effects of the present invention are:

[0020] The present invention provides a solder mask alignment base and a method of using the same. The alignment base has a novel structure. The design of the first linear slide can facilitate the movement of the entire movable table, which is convenient for the pick-up and placement of the circuit board. The design of the push rod motor can make the circuit board better lifted and lowered, adapt to the adjustment of circuit boards of different thicknesses, and further facilitate the pick-up and placement of the circuit board. The setting of the second linear slide can drive the limit frame to clamp and fix both sides of the circuit board. The cooperation of the first lead screw, the second lead screw, the first motor, the second motor, the first baffle and the second baffle can adjust the alignment and clamp the front and rear ends of the circuit board. The overall cooperation can mechanically align the circuit board to ensure accurate alignment, and facilitate the subsequent secondary alignment of multiple solder mask processes, thereby improving the alignment accuracy and improving product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a structural schematic diagram of a solder mask alignment base provided in a specific embodiment of the present invention;

[0022] Figure 2 yes Figure 1 A magnified view of part A;

[0023] Figure 3 It is a schematic structural diagram of a limit frame, a first lead screw and a second lead screw provided in a specific embodiment of the present invention.

[0024] In the figure:

[0025] 100, base; 200, first linear slide; 210, first slider; 300, moving platform; 310, first support plate; 320, second support plate; 330, strip slot; 340, support frame; 400, second linear slide; 410, second slider; 500, limit frame; 501, guide slide; 510, first lead screw; 520, second lead screw; 530, first motor; 540, third slider; 550, first stop bar; 560, second motor; 570, fourth slider; 580, second stop bar; 581, ring body; 590, guide block; 600, push rod motor; 610, sleeve; 620, support plate; 700, control panel; 710, touch display screen; 720, control button. DETAILED DESCRIPTION

[0026] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0027] like Figures 1 to 3As shown, a specific embodiment of the present invention discloses a base for solder mask alignment, including a base 100, a first linear slide 200 fixedly arranged on both sides of the top surface of the base 100, a first slider 210 is slidably arranged on the first linear slide 200, and a moving platform 300 is fixedly supported on the top surfaces of the two first sliders 210, and the moving platform 300 includes a first support plate 310, the top surface of the first support plate 310 is fixed on the two first sliders 210, vertical plates are fixedly arranged on both sides of the top surface of the first support plate 310, and a second support plate 320 is fixedly mounted on the top surfaces of the two vertical plates, and a strip slot 330 is opened on the top surface of the second support plate 320, and the extension direction of the strip slot 330 is parallel to that of the first linear slide 20 0 is perpendicular to the extension direction of the strip slot 330, a second linear slide 400 is provided below the strip slot 330, the second linear slide 400 is a double-slider linear module, and two second sliders 410 that are synchronously approached or synchronously separated are slidably provided on the second linear slide 400, the two second sliders 410 extend into the strip slot 330, and the top surface is flush with the top surface of the second support plate 320; a limit frame 500 is installed on the top surface of each second slider 410, and the two limit frames 500 move with the two second sliders 410 to adjust the position of the two sides of the circuit board; the two sides of the limit frame 500 are open, and the first lead screw 510 and the second lead screw 520 are provided at both ends of the limit frame 500 through the bearing frame, and the first lead screw 510 and the second lead screw 520 are provided at both ends of the limit frame 500. The first lead screw 510 and the second lead screw 520 are parallel, and the extension direction is perpendicular to the extension direction of the second linear slide 400. The first lead screw 510 is located on the side of the second lead screw 520 close to the center of the second support plate 320; the first lead screw 510 is driven by the first motor 530, and a third slider 540 is provided on the first lead screw 510. A first baffle 550 is fixedly provided on the side of the third slider 540 away from the second lead screw 520, and the first baffle 550 protrudes from one side opening of the limit frame 500. The second lead screw 520 is driven by the second motor 560, and a fourth slider 570 is provided on the second lead screw 520. The fourth slider 570 is fixedly provided on the side close to the first lead screw 510. There is a second baffle 580, which protrudes from one side opening of the limit frame 500, and the bottom surfaces of the first baffle 550 and the second baffle 580 are flush with each other, and the top surfaces are flush with each other; a support frame 340 is fixedly installed in the middle of the bottom surface of the second support plate 320, and a push rod motor 600 is installed on the support frame 340, and the piston rod of the push rod motor 600 is arranged upward, and a sleeve 610 is fixedly sleeved on the outside, and the sleeve 610 passes through the strip-shaped slot 330, and a supporting plate 620 is installed on the top; the first linear slide 200, the second linear slide 400, the first motor 530, the second motor 560, and the push rod motor 600 are all electrically connected to the control panel 700;The second slider 410 and the end of the strip slot 330 are correspondingly installed with a first distance measuring sensor, the top surface of the second support plate 320 is correspondingly installed with a second distance measuring sensor on the support plate 620, the first stop bar 550 and the end wall of the limit frame 500 are correspondingly installed with a third distance measuring sensor, and the second stop bar 580 and the end wall of the limit frame 500 are correspondingly installed with a fourth distance measuring sensor. ;

[0028] The above-mentioned solder mask alignment base has a novel structure. The design of the first linear slide 200 can facilitate the overall movement of the movable table 300, which is convenient for the pick-up and placement operation of the circuit board; and the design of the push rod motor 600 can make the circuit board better lifted and lowered, adapt to the adjustment of circuit boards of different thicknesses, and can also further facilitate the pick-up and placement of the circuit board; and the setting of the second linear slide 400 can drive the limit frame 500 to clamp and fix the two sides of the circuit board, and the cooperation of the first lead screw 510, the second lead screw 520, the first motor 530, the second motor 560, the first stop bar 550, and the second stop bar 580 can adjust the front and rear ends of the circuit board for alignment and clamping. The overall cooperation can mechanically align the circuit board to ensure the accuracy of the alignment, and facilitate the subsequent secondary alignment of multiple solder mask processes, improve the alignment accuracy, and thus improve the product quality;

[0029] More specifically, when performing solder mask processing, the size of the circuit board to be processed is input into the control panel 700, and the control panel 700 prompts to select the support plate 620 of the corresponding size, and the staff replaces and installs it according to the prompt; and the control panel 700 sets the corresponding alignment and movement route, and keeps a record of the batch of circuit boards; the equipment is started, and the first linear slide 200 drives the entire moving table 300 to move outward, and the staff places the circuit board to be processed on the support plate 620, and then the first linear slide 200 drives the entire moving table 300 to move inward according to the preset route; then, the push rod motor 600 is started to push the circuit board to the preset position; then, the second linear slide 400 is started, and the second slider 41 0 drives the limit frame 500 to align the two sides of the circuit board, and then the first motor 530 and the second motor 560 are started, driving the first baffle 550 and the second baffle 580 to move, so as to align the two ends of the circuit board, so as to determine the position of the circuit board and clamp it; after the solder mask is completed, the first motor 530, the second motor 560, and the second linear slide 400 are reset to release the clamping of the circuit board; the first linear slide 200 drives the moving table 300 to move outward, and the push rod motor 600 lifts the circuit board again to facilitate the loading and unloading of materials; it should be noted that when performing multiple solder mask operations, the alignment route records of this batch of circuit boards can be directly called on the control panel 700 to perform accurate multiple solder mask alignments.

[0030] Furthermore, the outer wall of the sleeve 610 is a square structure and slides along the two opposite side walls of the strip slot 330; the support plate 620 is fixed to the top of the sleeve 610 by screws; this structural design can further limit the movement of the sleeve, so that the support plate 620 can be lifted and lowered smoothly; it should be noted that the support plate 620 is preferably a rectangular structure.

[0031] Furthermore, a ring body 581 is provided on the second baffle 580 , and the first lead screw 510 passes through the ring body 581 , so that the first baffle 550 and the second baffle 580 are flush with each other, and interference between the second lead screw 520 and the second baffle 580 is prevented.

[0032] Furthermore, the top and bottom surfaces of the third slider 540 and the top and bottom surfaces of the fourth slider 570 are provided with guide blocks 590, and the top inner wall and the bottom inner wall of the limit frame 500 are provided with guide grooves 501 corresponding to the guide blocks 590, and the third slider 540 and the fourth slider 570 slide along the corresponding guide grooves 501 through the corresponding guide blocks 590; this structural design can further limit the movement of the third slider 540 and the fourth slider 570, and then limit the movement of the first baffle 550 and the second baffle 580 to prevent tilting.

[0033] Furthermore, the control panel 700 is provided with a touch screen 710 and control buttons 720 .

[0034] A method for using a solder mask alignment base is also provided, comprising the following steps:

[0035] S1, input the size of the circuit board to be processed into the control panel, and the control panel prompts to select the corresponding size of the support board through the touch screen, and the staff replaces and installs it according to the prompt; and the control panel sets the corresponding alignment and movement route, and keeps a record of the batch of circuit boards;

[0036] S2, the first linear slide drives the entire mobile platform to move outward, the staff places the circuit board to be processed on the support plate, and then the first linear slide drives the entire mobile platform to move inward according to the preset route;

[0037] S3, the push rod motor starts and pushes the circuit board to the preset position;

[0038] S4, the second linear slide is started, and the second slide drives the limit frame to align the two sides of the circuit board;

[0039] S5, the first motor and the second motor are started, driving the first stop bar and the second stop bar to move, so as to align the two ends of the circuit board, thereby determining the position of the circuit board;

[0040] S6, after the solder resist is completed, the first motor, the second motor, and the second linear slide are reset to release the clamping of the circuit board; the first linear slide drives the moving table to move outward, and the push rod motor lifts the circuit board again to facilitate the loading and unloading of materials;

[0041] S7, when performing multiple solder mask operations, the alignment route record of this batch of circuit boards can be directly called on the control panel to perform accurate multiple solder mask alignment.

[0042] Furthermore, in step S1, the dimensions of the circuit board include length, width, and thickness; and at least four optical alignment points are added to the outer plate portion of the circuit board to facilitate secondary alignment exposure by the solder mask machine.

[0043] The present invention is described by preferred embodiments, and those skilled in the art will appreciate that various changes or equivalent substitutions may be made to these features and embodiments without departing from the spirit and scope of the present invention. The present invention is not limited to the specific embodiments disclosed herein, and other embodiments falling within the claims of this application are within the scope of protection of the present invention.

Claims

1. A solder mask alignment base, characterized in that: The invention comprises a base (100), a first linear slide (200) fixedly arranged on both sides of the top surface of the base (100), a first slider (210) being slidably arranged on the first linear slide (200), a movable platform (300) being fixedly supported on the top surfaces of the two first sliders (210), the movable platform (300) comprising a first support plate (310), the top surface of the first support plate (310) being fixedly arranged on the two first sliders (210), vertical plates being fixedly arranged on both sides of the top surface of the first support plate (310), a second support plate (320) being fixedly arranged on the top surfaces of the two vertical plates, and a strip-shaped slot hole (330) being opened on the top surface of the second support plate (320), The extension direction of the strip slot (330) is perpendicular to the extension direction of the first linear slide (200); a second linear slide (400) is provided below the strip slot (330); the second linear slide (400) is a double-slider linear module; two second sliders (410) are provided on the second linear slide (400) for sliding and moving toward or away from each other synchronously; the two second sliders (410) extend into the strip slot (330) and the top surface is flush with the top surface of the second support plate (320); a limit frame (500) is installed on the top surface of each second slider (410); the two limit frames (500) are moved along with the two second sliders (4 10) can be moved to adjust the positions of both sides of the circuit board; the two sides of the limit frame (500) are open, and the two ends of the limit frame (500) are provided with a first lead screw (510) and a second lead screw (520) through a bearing frame, the first lead screw (510) and the second lead screw (520) are parallel, and the extension direction of the first lead screw (510) and the second lead screw (520) are perpendicular to the extension direction of the second linear slide (400), and the first lead screw (510) is located on the side of the second lead screw (520) close to the center of the second support plate (320); the first lead screw (510) is driven by a first motor (530), and a third slider (540) is provided on the first lead screw (510), A first stop bar (550) is fixedly provided on a side of the third slider (540) away from the second lead screw (520), and the first stop bar (550) protrudes from an opening on one side of the limit frame (500). The second lead screw (520) is driven by a second motor (560). A fourth slider (570) is provided on the second lead screw (520). A second stop bar (580) is fixedly provided on a side of the fourth slider (570) close to the first lead screw (510), and the second stop bar (580) protrudes from an opening on one side of the limit frame (500). The bottom surfaces of the first stop bar (550) and the top surfaces of the second stop bar (580) are flush with each other. A support frame (340) is fixedly installed in the middle of the bottom surface of the second support plate (320), and a push rod motor (600) is installed on the support frame (340). The piston rod of the push rod motor (600) is arranged upward, and a sleeve (610) is fixedly sleeved on the outside. The sleeve (610) passes through the strip slot (330) and a supporting plate (620) is installed on the top; the first linear slide (200), the second linear slide (400), the first motor (530), the second motor (560), and the push rod motor (600) are all electrically connected to the control panel (700); The push rod motor (600) causes the circuit board to rise and fall, and the first stop bar (550) and the second stop bar (580) align the two ends of the circuit board to determine the position of the circuit board and clamp it.

2. A solder mask alignment base according to claim 1, characterized in that: The outer wall of the sleeve (610) is a square structure and slides along two opposite side walls of the strip-shaped slot hole (330); the supporting plate (620) is fixed to the top end of the sleeve (610) by screws.

3. A solder mask alignment base according to claim 2, characterized in that: The second baffle (580) is provided with a ring body (581), and the first lead screw (510) passes through the ring body (581).

4. The solder mask alignment base according to claim 3, characterized in that: The top surface and bottom surface of the third slider (540) and the top surface and bottom surface of the fourth slider (570) are both provided with guide blocks (590); the top inner wall and the bottom inner wall of the limit frame (500) are provided with guide grooves (501) corresponding to the guide blocks (590); the third slider (540) and the fourth slider (570) slide along the corresponding guide grooves (501) through the corresponding guide blocks (590).

5. The solder mask alignment base according to claim 4, characterized in that: The control panel (700) is provided with a touch display screen (710) and control buttons (720).

6. A method for using the solder mask alignment base according to claim 5, characterized in that: The following steps are involved: S1, input the size of the circuit board to be processed into the control panel, and the control panel prompts to select the corresponding size of the support board through the touch screen, and the staff replaces and installs it according to the prompt; and the control panel sets the corresponding alignment and movement route, and keeps a record of the batch of circuit boards; S2, the first linear slide drives the entire mobile platform to move outward, the staff places the circuit board to be processed on the support plate, and then the first linear slide drives the entire mobile platform to move inward according to the preset route; S3, the push rod motor starts and pushes the circuit board to the preset position; S4, the second linear slide is started, and the second slide drives the limit frame to align the two sides of the circuit board; S5, the first motor and the second motor are started, driving the first stop bar and the second stop bar to move, so as to align the two ends of the circuit board, thereby determining the position of the circuit board; S6, after the solder resist is completed, the first motor, the second motor, and the second linear slide are reset to release the clamping of the circuit board; the first linear slide drives the moving table to move outward, and the push rod motor lifts the circuit board again to facilitate the loading and unloading of materials; S7, when performing multiple solder mask operations, the alignment route record of this batch of circuit boards can be directly called on the control panel to perform accurate multiple solder mask alignment.

7. The method for using the solder mask alignment base according to claim 6, characterized in that: In step S1, the dimensions of the circuit board include length, width, and thickness; and at least four optical alignment points are added to the outer plate portion of the circuit board to facilitate secondary alignment exposure by the solder mask machine.

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