CN112078235A

CN112078235A - CCD counterpoint vacuum silk screen printing machine

Info

Publication number: CN112078235A
Application number: CN202011000770.8A
Authority: CN
Inventors: 李育建; 肖国荣; 宋晓
Original assignee: Goal Searchers Co ltd Zhuhai
Current assignee: Goal Searchers Co ltd Zhuhai
Priority date: 2020-09-22
Filing date: 2020-09-22
Publication date: 2020-12-15

Abstract

The invention discloses a CCD contraposition vacuum screen printer, which comprises: a frame; the first vacuum chamber is arranged on the frame; the second vacuum chamber is arranged on the frame; the CCD working table is arranged at the upper end of the first vacuum chamber; a camera adjusting mechanism mounted on an outer wall of the second vacuum chamber; the CCD camera is arranged on the camera adjusting mechanism and can move along the Z-axis direction, and the CCD camera can be driven by the camera adjusting mechanism to move along the X-axis direction and the Y-axis direction. The CCD camera is arranged on the camera adjusting mechanism capable of adjusting the directions of the X axis and the Y axis, after a product batch is replaced, the position of the CCD camera on the X axis and the Y axis is changed by the camera adjusting mechanism, and the height of the CCD camera is adjusted on the Z axis, so that the focal length of the CCD camera is changed, and therefore the PCB can be repositioned and shot by the CCD camera without adjusting a table board.

Description

CCD counterpoint vacuum silk screen printing machine

Technical Field

The invention relates to the field of automatic alignment vacuum hole plugging of a PCB (printed circuit board), in particular to a CCD (charge coupled device) alignment vacuum screen printing machine.

Background

In the process of vacuum screen printing of a PCB, the positions of screen holes on a screen printing plate of a vacuum screen printing machine and positions of holes to be plugged on the PCB need to be adjusted, in the past, a CCD camera fixed on a frame of the screen printing machine is used for shooting and positioning, then a table top is adjusted for alignment, after a product batch is changed, the table top needs to be adjusted again by a large margin to position the CCD camera, and the process of readjusting the table top is very complicated.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a CCD alignment vacuum screen printing machine which can conveniently carry out PCB alignment.

The CCD contraposition vacuum screen printing machine comprises a frame; the first vacuum chamber is arranged on the frame; the second vacuum chamber is arranged on the frame; the CCD working table is arranged at the upper end of the first vacuum chamber and used for positioning and placing the PCB; a camera adjusting mechanism mounted on an outer wall of the second vacuum chamber; the CCD camera is arranged on the camera adjusting mechanism and can move along the Z-axis direction, and the CCD camera can be driven by the camera adjusting mechanism to move along the X-axis direction and the Y-axis direction.

The method has the following beneficial effects: the CCD camera is arranged on the camera adjusting mechanism capable of adjusting the directions of the X axis and the Y axis, after a product batch is replaced, the position of the CCD camera on the X axis and the Y axis is changed by the camera adjusting mechanism, and the height of the CCD camera is adjusted on the Z axis, so that the focal length of the CCD camera is changed, and therefore the PCB can be repositioned and shot by the CCD camera without adjusting a table board.

According to some embodiments of the invention, the camera adjustment mechanism comprises: the X-direction adjusting mechanism comprises an X-direction guide rod and an X-direction sliding block, and the X-direction sliding block can move along the length direction of the X-direction guide rod; and the Y-direction adjusting mechanism is arranged on the X-direction sliding block and comprises a Y-direction guide rod and a Y-direction sliding block, the Y-direction sliding block can move along the length direction of the Y-direction guide rod, and the CCD camera is connected with the Y-direction sliding block in a sliding manner along the Z axis.

According to some embodiments of the invention, the lower end of the Y-direction slider is provided with a lifting assembly, the lifting assembly comprises a rotating rod, a connecting block and a limiting block, the length of the rotating rod extends along the Z-axis direction, the rotating rod is provided with a threaded section and an optical axis section, the connecting block is in threaded connection with the threaded section of the rotating rod, the CCD camera is fixedly mounted on the connecting block, the connecting block can move along the length direction of the rotating rod, the limiting block is sleeved on the optical axis section of the rotating rod, and the rotating rod can be fixed by the limiting block in the Z-axis direction.

According to some embodiments of the invention, a limiting bearing is arranged in the limiting block, and the optical axis section of the rotating rod is connected with the limiting block through the limiting bearing.

According to some embodiments of the invention, the lower end of the Y-direction slider is provided with a guide rail along the Z-axis direction, and the connecting block is provided with a Z-direction slider matched with the guide rail.

According to some embodiments of the invention, the lower end of the rotary rod is provided with an adjusting knob, and the adjusting knob is provided with concave-convex anti-skid lines at intervals.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic diagram of a structure with a view angle according to an embodiment of the present invention;

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a schematic structural diagram of another view according to an embodiment of the present invention;

fig. 4 is a partially enlarged view of fig. 3 at B.

Reference numerals: the device comprises a machine frame 1, a first vacuum chamber 2, a second vacuum chamber 3, a CCD worktable 4, a camera adjusting mechanism 5, an X-direction adjusting mechanism 51, an X-direction guide rod 511, an X-direction sliding block 512, a Y-direction adjusting mechanism 52, a Y-direction guide rod 521, a Y-direction sliding block 522, a guide rail 5221, a CCD camera 6, a lifting assembly 7, a rotary rod 71, an adjusting knob 711, a connecting block 72 and a limiting block 73.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and more than, less than, more than, etc. are understood as excluding the present number, and more than, less than, etc. are understood as including the present number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 4, the CCD alignment vacuum screen printing machine of the present invention includes a frame 1, a first vacuum chamber 2, a second vacuum chamber 3, a CCD worktable 4, a camera adjusting mechanism 5 and a CCD camera 6. First real empty room 2 sets up in frame 1, and the setting of second real empty room 3 is in frame 1, and CCD table surface 4 sets up in 2 upper ends in first real empty room, and camera guiding mechanism 5 installs on the outer wall of the real empty room of second 3, and CCD camera 6 sets up on camera guiding mechanism 5, and CCD camera 6 can be followed Z axle direction and removed, and CCD camera 6 can be driven by camera guiding mechanism 5 and removed along X axle direction and Y axle direction.

Camera guiding mechanism 5 is installed on the outer wall of the real empty room of second 3, more do benefit to fixed camera guiding mechanism 5, can not influence the installation progress and the counterpoint action of the camera lens of CCD camera 6, before CCD camera 6 advances line location, camera guiding mechanism 5 adjusts CCD camera 6 at the epaxial position of X axle and Y, camera guiding mechanism (5) can also be installed on the outer wall of real empty room of second 3 through supporting mounting panel, sufficient rigidity is guaranteed to the mounting panel, real empty room of second 3 adopts the integrated configuration of thickening closing plate and deep floor, except guaranteeing sealing performance, can also guarantee sufficient rigidity, with the installation requirement and the operation requirement under the vacuum state of guaranteeing CCD camera 6.

The CCD working table surface 4 is used for positioning and placing a PCB, the CCD camera is arranged on a camera adjusting mechanism capable of adjusting the directions of an X axis and a Y axis, after a product batch is replaced, the position of the CCD camera 6 on the X axis and the Y axis is changed by the camera adjusting mechanism, and the height of the CCD camera 6 is adjusted on the Z axis, so that the focal length of the CCD camera 6 is changed, the table surface does not need to be adjusted, and the CCD camera can be used for re-positioning and shooting the PCB.

In addition, in the practical application process, the CCD working table surface 4 can also carry out contrast automatic adjustment according to the position of the screen hole captured by the CCD camera 6 for the first time and the position of the plug hole required on the PCB captured by the CCD camera 6, so that the screen hole is automatically aligned with the plug hole on the PCB.

Referring to fig. 2 and 3, in some embodiments of the invention, the camera adjustment mechanism 5 comprises: the X-direction adjusting mechanism 51 comprises an X-direction guide rod 511 and an X-direction slider 512, and the X-direction slider 512 can move along the length direction of the X-direction guide rod 511. The Y-direction adjustment mechanism 52 is provided on the X-direction slider 512, the Y-direction adjustment mechanism 52 includes a Y-direction guide 521 and a Y-direction slider 522, the Y-direction slider 522 is movable in the longitudinal direction of the Y-direction guide 521, and the CCD camera 6 is slidably connected to the Y-direction slider 522 along the Z-axis.

The X-direction adjusting mechanism 51 and the Y-direction adjusting mechanism 52 are respectively arranged to adjust the movement of the CCD camera 6 in the X direction and the Y direction, the X-direction adjusting mechanism 51 and the Y-direction adjusting mechanism 52 are driven by a guide rod driving structure, and the guide rod driving structure has the advantages of high precision, high driving efficiency and the like.

In some embodiments of the present invention, the lower end of the Y-directional slider 522 is provided with the lifting assembly 7, the lifting assembly 7 includes a rotating rod 71, connecting block 72 and stopper 73, the length of swing arm 71 extends along the Z axle direction, swing arm 71 has screw thread section and optical axis section, connecting block 72 and swing arm 71's screw thread section threaded connection, CCD camera 6 fixed mounting is on connecting block 72, connecting block 72 can move along swing arm 71 length direction, Y is provided with guide rail 5221 along the Z axle direction to slider 522 lower extreme, connecting block 72 is provided with the Z that cooperates with guide rail 5221 to slider 721, stopper 73 cup joints on swing arm 71's optical axis section, stopper 73 can be at the fixed swing arm 71 of Z axle direction, be provided with limit bearing in the stopper 73, swing arm 71's optical axis section passes through limit bearing connects stopper 73, swing arm 71 lower extreme is provided with adjust knob 711, adjust knob 711 has unsmooth alternate anti-skidding line.

When the height of the CCD camera 6 needs to be adjusted on the Z axis, the adjusting knob 711 is rotated, the adjusting knob 711 drives the rotating rod 71 to rotate, the optical axis section of the rotating rod 71 is matched with the limiting bearing of the limiting block 73, the rotating rod 71 cannot move on the Z axis, meanwhile, the connecting block 72 can be matched with the guide rail 5221, the connecting block 72 can slide on the Z axis along the guide rail 5221 and limit the rotation of the connecting block 72 on the X axis and the Y axis plane, the adjusting knob 711 is arranged at the lower end of the rotating rod 71, the adjusting knob 711 has concave-convex alternate anti-slip patterns, the surface roughness of the adjusting knob 711 can be improved, the contact friction force is increased, and the adjusting knob 711 is more beneficial to rotating.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention.

Claims

1. The utility model provides a CCD counterpoint vacuum silk screen printing machine which characterized in that includes:

a frame (1);

a first vacuum chamber (2) arranged on the frame (1);

a second vacuum chamber (3) arranged on the frame (1);

the CCD working table surface (4) is arranged at the upper end of the first vacuum chamber (2) and is used for positioning and placing the PCB;

a camera adjusting mechanism (5) mounted on an outer wall of the second vacuum chamber (3);

CCD camera (6), set up camera guiding mechanism (5) are last, CCD camera (6) can be followed Z axle direction and removed, CCD camera (6) can by camera guiding mechanism (5) drive moves along X axle direction and Y axle direction.

2. The CCD alignment vacuum screen printing machine according to claim 1, wherein the camera adjusting mechanism (5) comprises:

an X-direction adjusting mechanism (51) which comprises an X-direction guide rod (511) and an X-direction sliding block (512), wherein the X-direction sliding block (512) can move along the length direction of the X-direction guide rod (511);

and the Y-direction adjusting mechanism (52) is arranged on the X-direction sliding block (512), the Y-direction adjusting mechanism (52) comprises a Y-direction guide rod (521) and a Y-direction sliding block (522), the Y-direction sliding block (522) can move along the length direction of the Y-direction guide rod (521), and the CCD camera (6) is connected with the Y-direction sliding block (522) in a sliding mode along the Z axis.

3. The CCD counterpoint vacuum screen printer according to claim 2, characterized in that Y is to slider (522) lower extreme installation lifting unit (7), lifting unit (7) includes swing arm (71), connecting block (72) and stopper (73), swing arm (71) length is followed Z axle direction and is extended, swing arm (71) have screw thread section and smooth axle section, connecting block (72) with the screw thread section threaded connection of swing arm (71), CCD camera (6) fixed mounting is in on connecting block (72), connecting block (72) can be followed swing arm (71) length direction removes, stopper (73) cup joint on the smooth axle section of swing arm (71), stopper (73) can be fixed in Z axle direction swing arm (71).

4. The CCD alignment vacuum screen printing machine according to claim 3, wherein a limiting bearing is arranged in the limiting block (73), and the optical axis section of the rotating rod (71) is connected with the limiting block (73) through the limiting bearing.

5. The CCD alignment vacuum screen printing machine according to claim 3, wherein the lower end of the Y-direction slider (522) is provided with a guide rail (5221) along the Z-axis direction, and the connecting block (72) is provided with a Z-direction slider (721) matched with the guide rail (5221).

6. The CCD alignment vacuum screen printing machine as claimed in claim 3, wherein the lower end of the rotating rod (71) is provided with an adjusting knob (711), and the adjusting knob (711) is provided with anti-skid lines with alternate concave and convex patterns.