CN117192909A - Exposure layering and mesa device - Google Patents

Abstract

The invention discloses an exposure pressing strip and table top device, which relates to the technical field of PCB printed board production, and comprises a support base, wherein a PCB printed board is arranged at the upper end of the support base, PCB width limiting mechanisms are arranged at two sides of the PCB printed board, and two ends of the PCB printed board are movably connected with exposure pressing strip adjusting mechanisms; the PCB width limiting mechanism comprises a driving adjusting unit and a telescopic unit. According to the invention, the two-way threaded rod II rotates under the driving of the driving motor II, so that synchronous relative movement of the two groups of horizontal moving plates and the side clamping strips is ensured, and the device can be adapted and adjusted according to the width of the plates, multiple limiting is realized on the length, the width and the thickness of the device, and the effectiveness of the exposure pressing strip is ensured, so that the problem of raising the angle of the exposure front plate is reduced, the air suction holes are arranged on the surface of the PCB printed board, and the problems of raising and deforming the angle of the exposure front plate are further reduced according to the opening and closing of the air suction holes in the area type of the exposure table surface.

Description

Exposure layering and mesa device

Technical Field

The invention relates to the technical field of PCB (printed Circuit Board) production, in particular to an exposure pressing strip and a table top device.

Background

In the production and manufacturing process of a PCB (Printed Circuit Board ) or a package substrate, line exposure is an important process. Along with continuous iteration of consumer products, the size of a packaging substrate is smaller and smaller, precision in line exposure is higher and higher, in the prior art, split exposure is generally adopted to improve alignment precision, namely a large board is split into a plurality of small boards, a plurality of split targets are arranged at the split positions, so that the targets are irradiated through exposure light sources of an exposure machine, and positioning and recognition are performed, however, because different boards are different in split difficulty, the targets are only irradiated from top to bottom through the exposure light sources, recognition precision of the targets cannot be further improved, when the board split difficulty is large and the number of targets is large, poor target recognition is caused due to the fact that the recognition precision cannot be improved, the increase of exposure refusing rate is caused, processing of products is affected, and the problems of defect rejection caused by deformation of corners caused by the fact that PCB printed boards are thinner and solder resist windows are smaller are solved.

The publication number is: an imaging exposure pressing plate device of CN207148522U comprises a sensor, a controller, a mechanical arm and a pressing bar, wherein the sensor, the controller and the mechanical arm are electrically connected in sequence, and the pressing bar is arranged on the mechanical arm; the sensor is used for detecting the pressure given by the PCB board and converting the pressure into an electric signal, and the controller receives the electric signal and controls the mechanical arm to move according to the electric signal, so that the pressing strips arranged on the mechanical arm press four sides of the PCB board. In the exposure process, the controller controls the mechanical arm to move according to the electric signal, so that the pressing strips arranged on the mechanical arm press four sides of the PCB, the four sides of the PCB are prevented from being warped, and the problem that the side of the PCB is warped in the exposure process to cause poor exposure in the prior art can be solved.

In order to solve the problem that the prior art causes poor exposure due to warping of the edges of the PCB in the exposure process, the prior art is to press four sides of the PCB by adopting a pressing bar fixedly arranged on a mechanical arm, press the four sides of the PCB when the exposure table is used for exhausting the PCB, and prevent the four sides of the PCB from being processed in a warping way, but the problem that the stretching of the pressing bar cannot be performed according to the thickness and the size of the PCB in actual use, and further the problem that the exposure table is difficult to effectively attach to the PCB and the problem of large limitation are caused.

Disclosure of Invention

The present invention provides an exposure bead and mesa device to solve the problems set forth in the background art described above.

In order to solve the technical problems, the invention adopts the following technical scheme:

the exposure layering and table top device comprises a support base, wherein a PCB printed board is arranged at the upper end of the support base, PCB width limiting mechanisms are arranged on two sides of the PCB printed board, and exposure layering adjusting mechanisms are movably connected to two ends of the PCB printed board;

the PCB width limiting mechanism comprises a driving adjusting unit and a telescopic unit, and the telescopic unit is arranged at the inner side of the output end of the driving adjusting unit;

the exposure layering adjusting mechanism comprises a power unit and a side pressing unit, wherein the side pressing unit is arranged at the output end of the power unit.

The technical scheme of the invention is further improved as follows: the driving adjusting unit comprises a first driving motor, the first driving motor is fixedly arranged on the outer surface of one side of the supporting base, a first bidirectional threaded rod is fixedly connected to an output shaft of the first driving motor, the outer surfaces of two ends of the first bidirectional threaded rod are respectively connected with the inner wall of the supporting base in a rotating mode, the first bidirectional threaded rod is arranged to be a threaded rod capable of rotating in two directions, and the first bidirectional threaded rod is distributed in a mirror image mode through the center line of the first bidirectional threaded rod.

The technical scheme of the invention is further improved as follows: the upper end surface threaded connection of two-way threaded rod one has spacing slider, just spacing slider's lower extreme surface and the spout inner wall sliding connection who presets on supporting base upper end inner wall, the upper end fixed mounting of spacing slider has the removal holder, just the inboard surface fixedly connected with fixed bottom layering of lower extreme of removal holder, spacing slider sets up to the type of falling T structure.

The technical scheme of the invention is further improved as follows: the telescopic unit comprises an upper exposure pressing strip, the inner wall of the upper end of the upper exposure pressing strip is rotationally connected with a threaded rotating rod, the outer surface of the upper side of the threaded rotating rod is in threaded connection with the inner wall of the upper end of the movable clamping seat, lifting sliding blocks which are in sliding connection with the inner wall of the movable clamping seat are fixedly arranged on the inner side surface of the upper exposure pressing strip, and the outer surfaces of the lifting sliding blocks are symmetrically distributed in a vertical central line of the movable clamping seat.

The technical scheme of the invention is further improved as follows: the inner surfaces of the two ends of the upper exposure pressing strip are respectively provided with a movable through groove, the inner surfaces of the movable through grooves are connected with telescopic strips in a sliding manner, and the outer surfaces of the telescopic strips are matched with the inner walls of the movable through grooves in a sliding manner.

The technical scheme of the invention is further improved as follows: one end fixedly connected with of telescopic strip and activity logical inslot wall fixed connection's telescopic link, the both sides surface of telescopic strip respectively fixed mounting have with predetermine the internal surface sliding connection's of the spacing groove of upper exposure layering both sides inner wall connecting block, the connecting block sets up with the horizontal axis mirror image distribution of telescopic strip.

The technical scheme of the invention is further improved as follows: the power unit comprises a limiting groove plate and a driving motor II, wherein the limiting groove plate is fixedly arranged at the lower end of the supporting base, the driving motor II is fixedly arranged on the outer surface of one end of the limiting groove plate, a bidirectional threaded rod II is fixedly connected to an output shaft of the driving motor II, the outer surfaces of two ends of the bidirectional threaded rod II are respectively connected with the inner wall of the limiting groove plate in a rotating mode, and the bidirectional threaded rod II is arranged to be a threaded rod capable of rotating in a bidirectional mode.

The technical scheme of the invention is further improved as follows: the two ends of the second bidirectional threaded rod are respectively in threaded connection with a horizontal moving plate, the inner side surface of the upper end of the horizontal moving plate is fixedly connected with side clamping strips through bolts, two groups of side clamping strips are arranged, and the two groups of side clamping strips are distributed in a mirror image mode through the middle line of the second bidirectional threaded rod.

By adopting the technical scheme, compared with the prior art, the invention has the following technical progress:

1. the invention provides an exposure pressing strip and table top device, which is characterized in that a first driving motor is driven and controlled to be started to provide power for the rotation of an output shaft of the exposure pressing strip and the table top device, the rotation of the output shaft is used as a central point of power transmission, the power output is provided for the rotation of a first bidirectional threaded rod, and under the condition of bidirectional threaded rotation, a limit sliding block and a movable clamping seat integrally realize the movement in the horizontal direction, so that the pressing strips on two sides are conveniently ensured to approach from the outer side to the middle according to the width of a PCB, and the accurate limit of the PCB is realized.

2. The invention provides an exposure pressing strip and a table top device, wherein the vertical height of an upper exposure pressing strip is adjusted under the manual rotation of a threaded rotating rod, the accurate adaptation adjustment can be carried out according to the thickness of a plate, the stable lamination of a PCB printed board and the table top is ensured, the situation of displacement is prevented, under the telescopic condition of a telescopic rod, the telescopic strip and a connecting block are mutually matched, the horizontal movement in two opposite directions is realized, the length of the upper exposure pressing strip is conveniently lengthened, the adjustment can be carried out according to the length of the plate, the structure is simple, the operation is convenient, and the overall practicality and the overall integrity of the device are improved.

3. The invention provides an exposure pressing strip and a table top device, wherein a second driving motor is used for driving a second driving motor, a second bidirectional threaded rod rotates, synchronous relative movement of two groups of horizontal moving plates and side clamping strips is guaranteed, and the device can be adjusted in an adapting way according to the width of the plates.

Drawings

FIG. 1 is a schematic diagram of the structure of the present invention;

FIG. 2 is a schematic view of an exploded perspective view of the present invention;

fig. 3 is a schematic view of a partial three-dimensional structure of a width limiting mechanism of a PCB board according to the present invention;

FIG. 4 is a schematic view of a partial perspective cross-sectional structure of the telescoping unit of the present invention;

FIG. 5 is an enlarged schematic view of the structure of FIG. 4A according to the present invention;

fig. 6 is a schematic side view of a perspective cross-sectional structure of an exposure bead adjusting mechanism of the present invention.

In the figure: 1. a support base; 11. a PCB printed board; 2. a PCB width limiting mechanism; 3. an exposure layering adjusting mechanism; 211. driving a first motor; 212. a bidirectional threaded rod I; 213. a limit sliding block; 214. moving the clamping seat; 215. fixing the bottom pressing strip; 221. a threaded rotating rod; 222. upper exposure pressing strips; 2221. a lifting slide block; 2222. a limit groove; 223. a telescoping strip; 2231. a connecting block; 224. a telescopic rod; 311. limiting groove plates; 312. a second driving motor; 313. a two-way threaded rod II; 321. a horizontal moving plate; 322. side holding strips.

Detailed Description

The invention is further illustrated by the following examples:

example 1

As shown in fig. 1-6, the invention provides an exposure pressing strip and table top device, which comprises a support base 1, wherein a Printed Circuit Board (PCB) 11 is arranged at the upper end of the support base 1, a PCB width limiting mechanism 2 is arranged at two sides of the PCB 11, and an exposure pressing strip adjusting mechanism 3 is movably connected at two ends of the PCB 11; the PCB width limiting mechanism 2 comprises a driving adjusting unit and a telescopic unit, wherein the telescopic unit is arranged at the inner side of the output end of the driving adjusting unit; the exposure layering adjustment mechanism 3 comprises a power unit and a side compaction unit, the side compaction unit is arranged at the output end of the power unit, the drive adjustment unit comprises a first driving motor 211, the first driving motor 211 is fixedly arranged on the outer surface of one side of the supporting base 1, a first bidirectional threaded rod 212 is fixedly connected to the output shaft of the first driving motor 211, the outer surfaces of the two ends of the first bidirectional threaded rod 212 are respectively and rotatably connected with the inner wall of the supporting base 1, the first driving motor 211 is controlled to be started to provide power for the rotation of the output shaft of the first driving motor, the rotation of the output shaft serves as a central point of power transmission, the power output is provided for the rotation of the first bidirectional threaded rod 212, the outer surface of the upper end of the first bidirectional threaded rod 212 is in threaded connection with a limit slide block 213, the outer surface of the lower end of the limit slide block 213 is in sliding connection with the inner wall of a chute preset on the inner wall of the upper end of the supporting base 1, the upper end of the limit slide block 213 is fixedly provided with a movable clamping seat 214, the inner side surface of the lower end of the movable clamping seat 214 is fixedly connected with a fixed bottom layering 215, the first bidirectional threaded rod 212 rotates to drive the limit slide block 213, the limit slide 213 is guaranteed to rotate under the condition of bidirectional threaded rod rotation, the condition that the limit slide block 213 is integrally rotated in the bidirectional threaded rod, the horizontal direction is guaranteed, the limit slide block 213 and the movable clamping seat 214 is conveniently moves in the horizontal direction according to the width of the two sides of the PCB, which is used as a center, and accurate PCB to the width of the PCB is guaranteed.

Example 2

As shown in fig. 1-6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the telescopic unit includes the upper exposure layering 222, upper end inner wall rotation of upper exposure layering 222 is connected with screw thread bull stick 221, and screw thread bull stick 221's upside surface and the upper end inner wall threaded connection of removal holder 214, upper exposure layering 222's inboard fixed surface increases has the lift slider 2221 with removal holder 214 inner wall sliding connection, through manual rotation screw thread bull stick 221, thereby can adjust upper exposure layering 222's vertical height, can carry out accurate adaptation regulation according to the thickness of board, guarantee to stabilize PCB printed board 11 and mesa pressfitting, prevent the condition of shifting, upper exposure layering 222's both ends internal surface has seted up the activity logical groove respectively, the internal surface sliding connection of activity logical groove has telescopic link 223, telescopic link 223's one end fixedly connected with and activity logical inslot wall fixed connection's telescopic link 224, telescopic link 223's both sides surface fixed mounting has respectively with the spacing groove 2222's that presets in upper exposure layering 222 both sides internal surface sliding connection's of telescopic link 223, under telescopic link 224's the effect of opening, drive telescopic link 223 outside horizontal promotion, thereby whole length of the connection link 223 is realized on the inner wall of activity logical groove, thereby whole length of the whole device is adjusted to the realization and practicality is shortened according to the whole length of the whole device.

Example 3

As shown in fig. 1-6, on the basis of embodiment 1, the present invention provides a technical solution: preferably, the power unit comprises a limiting groove plate 311 and a driving motor two 312, the limiting groove plate 311 is fixedly arranged at the lower end of the supporting base 1, the driving motor two 312 is fixedly arranged at the outer surface of one end of the limiting groove plate 311, a two-way threaded rod two 313 is fixedly connected to the output shaft of the driving motor two 312, the outer surfaces of the two ends of the two-way threaded rod two 313 are respectively and rotatably connected with the inner wall of the limiting groove plate 311, the driving motor two 312 is controlled to be started, the output shaft of the driving motor two 312 is enabled to rotate to provide power output for the rotation of the two-way threaded rod two 313, the two-way threaded rod two 313 is enabled to realize two-way threaded rotation, the outer surfaces of the two ends of the two-way threaded rod two 313 are respectively and fixedly connected with a horizontal moving plate 321, the inner side clamping strip 322 is fixedly connected with the upper end of the horizontal moving plate 321 through a bolt, the two groups of horizontal moving plates 321 and the side clamping strips 322 are enabled to synchronously and relatively move under the rotation of the two-way threaded rod two groups of the two-way threaded rod 313, the two-way horizontal moving plates 321 and the side clamping strips 322 can be adjusted in an adapting mode according to the width of the plate, multiple limiting is realized on the length, the width and the thickness of the side clamping strip can be ensured, the effect is reduced.

The working principle of the exposure bead and the table device will be described in detail.

As shown in fig. 1-6, when in operation, the PCB printed board 11 is stably attached to the upper end of the support base 1, the first driving motor 211 is driven to be controlled to start for providing power for rotation of the output shaft, the output shaft rotates as a center of power transmission, power output is provided for rotation of the first bidirectional threaded rod 212, under the condition of bidirectional threaded rotation, the limit sliding block 213 and the movable clamping seat 214 integrally realize movement in the horizontal direction, the width of the PCB printed board is convenient to ensure that two side pressing strips approach from the outside to the middle, then the threaded rotating rod 221 is manually rotated, the vertical height of the upper exposure pressing strip 222 is adjusted, accurate adaptation adjustment can be performed according to the thickness of the board, the PCB printed board 11 is ensured to be stably pressed with the table top, displacement is prevented, under the telescopic condition of the telescopic rod 224, the telescopic rod 223 is matched with the connecting block 2231, horizontal movement in two opposite directions is realized, the length of the upper exposure pressing strip 222 is convenient to be lengthened, adjustment can be performed according to the length of the board, finally, under the driving setting of the second threaded rod 312, two sets of the two sets of horizontal movement plates 321 and the width adaptation adjustment of the side pressing strips 322 is ensured according to synchronous movement of the side pressing strips.

The foregoing invention has been generally described in great detail, but it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, it is intended to cover modifications or improvements within the spirit of the inventive concepts.

Claims (8)

1. The utility model provides an exposure layering and mesa device, is applicable to the exposure layering processing of PCB printed board, includes support base (1), its characterized in that: the upper end of the support base (1) is provided with a PCB (printed circuit board) 11, two sides of the PCB (printed circuit board) 11 are provided with PCB width limiting mechanisms 2, and two ends of the PCB (printed circuit board) 11 are movably connected with exposure pressing bar adjusting mechanisms 3;

the PCB width limiting mechanism (2) comprises a driving adjusting unit and a telescopic unit, and the telescopic unit is arranged at the inner side of the output end of the driving adjusting unit;

the exposure layering adjusting mechanism (3) comprises a power unit and a side pressing unit, and the side pressing unit is arranged at the output end of the power unit.

2. The exposure bead and mesa device of claim 1, wherein: the driving adjusting unit comprises a first driving motor (211), the first driving motor (211) is fixedly arranged on the outer surface of one side of the supporting base (1), a first bidirectional threaded rod (212) is fixedly connected to an output shaft of the first driving motor (211), and the outer surfaces of two ends of the first bidirectional threaded rod (212) are respectively connected with the inner wall of the supporting base (1) in a rotating mode.

3. The exposure bead and mesa device of claim 2, wherein: the upper end outer surface threaded connection of two-way threaded rod one (212) has spacing slider (213), just the lower extreme surface of spacing slider (213) with predetermine spout inner wall sliding connection on supporting base (1) upper end inner wall, the upper end fixed mounting of spacing slider (213) has removal holder (214), just the inboard surface fixed connection of lower extreme of removal holder (214) has fixed bottom layering (215).

4. The exposure bead and mesa device of claim 1, wherein: the telescopic unit comprises an upper exposure pressing strip (222), a threaded rotating rod (221) is rotatably connected to the inner wall of the upper end of the upper exposure pressing strip (222), the outer surface of the upper side of the threaded rotating rod (221) is in threaded connection with the inner wall of the upper end of the movable clamping seat (214), and a lifting sliding block (2221) in sliding connection with the inner wall of the movable clamping seat (214) is fixedly arranged on the inner side surface of the upper exposure pressing strip (222).

5. The exposure bead and mesa assembly of claim 4, wherein: the inner surfaces of the two ends of the upper exposure pressing bar (222) are respectively provided with a movable through groove, and the inner surfaces of the movable through grooves are connected with telescopic bars (223) in a sliding manner.

6. The exposure bead and mesa assembly of claim 5, wherein: one end of the telescopic strip (223) is fixedly connected with a telescopic rod (224) fixedly connected with the inner wall of the movable through groove, and connecting blocks (2231) which are in sliding connection with the inner surfaces of limit grooves (2222) preset on the inner walls of the two sides of the upper exposure pressing strip (222) are respectively and fixedly arranged on the outer surfaces of the two sides of the telescopic strip (223).

7. The exposure bead and mesa device of claim 1, wherein: the power unit comprises a limiting groove plate (311) and a driving motor II (312), wherein the limiting groove plate (311) is fixedly arranged at the lower end of the supporting base (1), the driving motor II (312) is fixedly arranged on the outer surface of one end of the limiting groove plate (311), a bidirectional threaded rod II (313) is fixedly connected to an output shaft of the driving motor II (312), and the outer surfaces of two ends of the bidirectional threaded rod II (313) are respectively connected with the inner wall of the limiting groove plate (311) in a rotating mode.

8. The exposure bead and mesa assembly of claim 7, wherein: the two-way threaded rod II (313) is characterized in that the outer surfaces of the two ends of the two-way threaded rod II are respectively in threaded connection with a horizontal moving plate (321), and the inner side surface of the upper end of the horizontal moving plate (321) is fixedly connected with a side clamping strip (322) through a bolt.