CN220913012U

CN220913012U - Detection machine

Info

Publication number: CN220913012U
Application number: CN202323565023.0U
Authority: CN
Inventors: 唐金洲
Original assignee: Huayan Tianchuang Zhuhai Technology Co ltd
Current assignee: Huayan Tianchuang Zhuhai Technology Co ltd
Priority date: 2023-12-26
Filing date: 2023-12-26
Publication date: 2024-05-07
Anticipated expiration: 2033-12-26

Abstract

The utility model provides a detection machine, which comprises a machine tool, wherein a driving mechanism is arranged on the machine tool and can linearly reciprocate, a detection mechanism is connected above the driving mechanism, the detection mechanism comprises a sliding plate, a supporting block and a clamping assembly, and a gap is formed between the clamping assembly and the sliding block through the arrangement of the supporting block; the top of the machine tool is also provided with an imaging mechanism, the imaging mechanism comprises a lower beam and first support columns, the upper parts of the two first support columns are respectively and movably connected with the two ends of the lower beam, the movable connection part is provided with a height adjusting component, and the lower beam can move up and down along the direction vertical to the horizontal plane through the height adjusting component; the lower cross beam passes through the gap and is positioned between the clamping assembly and the sliding plate; when the imaging device works, the detection mechanism moves back and forth along the direction perpendicular to the setting direction of the imaging mechanism under the drive of the driving mechanism; the problem of high omission rate and high false detection rate is solved, and meanwhile, the labor cost is reduced, so that the productivity is improved.

Description

Detection machine

Technical Field

The utility model belongs to the field of PCB detection, and particularly relates to a detection machine.

Background

The PCB is also called a printed circuit board, is an important support body of electronic components, and needs a drilling technology for connecting different electronic components and fixing the PCB, and because the drilling technology is extremely complex, holes with different sizes are needed for fixing different components, the hole sizes must be accurate, even small errors bring huge losses, so the hole position detection is the most critical step in the PCB manufacturing process; meanwhile, the hole sites need to be communicated by a circuit, and the quality of the circuit communication is particularly critical;

At present, most of PCB hole positions or circuit detection is manually detected, but the manual detection is low in efficiency and high in labor cost, and after long-time detection, the problems of low production efficiency, low product quality and the like caused by improvement of missed detection rate and false detection rate due to fatigue feeling of eyes of people can be solved.

Disclosure of utility model

(1) Technical problem to be solved

The utility model provides a detection machine, and aims to solve the problems of high cost, low efficiency, high omission rate, high false detection rate and unstable detection effect of manual detection of a PCB.

(2) Technical proposal

The utility model provides a detection machine, which comprises a machine tool, wherein a driving mechanism is arranged on the machine tool, the driving mechanism can linearly reciprocate, a detection mechanism is connected above the driving mechanism, the detection mechanism comprises a sliding plate, a supporting block and a clamping assembly, the top of the supporting block is fixedly connected with the clamping assembly, the bottom of the supporting block is fixedly connected with the sliding plate, and a gap is formed between the clamping assembly and the sliding plate through the arrangement of the supporting block;

the top of the machine tool is provided with an imaging mechanism, the imaging mechanism comprises a lower beam and first support columns, the upper parts of the two first support columns are respectively and movably connected with the two ends of the lower beam, the movable connection part is provided with a height adjusting component, the lower beam can move up and down along the direction vertical to the horizontal plane through the height adjusting component, and the lower part of the first support column is fixedly connected with the machine tool; the arrangement direction of the lower cross beam is perpendicular to the movement direction of the driving mechanism and penetrates through the gap to be positioned between the clamping assembly and the sliding plate, an industrial camera is arranged at the top of the lower cross beam, a PCB (printed circuit board) is placed in the clamping assembly, and a light transmission area is arranged in the middle of the clamping assembly;

When the PCB detection device is in operation, under the drive of the driving mechanism, the detection mechanism moves back and forth along the setting direction perpendicular to the imaging mechanism, and under the imaging effect of the imaging mechanism, the purpose of detecting the PCB is achieved.

Further, the driving mechanism is a ball screw mechanism driven by a motor, and the ball screw mechanism comprises a screw and a screw nut; when the detection mechanism moves to enable the axis A or the axis B on the detection mechanism to overlap with the position of the imaging mechanism in the vertical direction, the motor drives the screw on the ball screw mechanism to reversely rotate, so that the detection mechanism is driven to move in the reverse direction, and the moving direction of the driving mechanism is the CD direction.

Further, the distance between the axis A and the axis B is greater than the length of the PCB along the CD direction.

Further, the clamping mechanism comprises a lower cover plate and an upper cover plate, and one end of the lower cover plate is hinged with one end of the upper cover plate through a rotating shaft.

Further, the middle parts of the upper cover plate and the lower cover plate are respectively provided with a light transmission area, the light transmission areas are respectively provided with a glass plate, and when the upper cover plate and the lower cover plate are closed, a mounting cavity is formed between the glass plates of the upper cover plate and the lower cover plate and is used for mounting a PCB to be detected; the two sides of the lower cover plate and the upper cover plate are respectively provided with a hydraulic rod, one end of each hydraulic rod is connected with the lower cover plate, and the other end of each hydraulic rod is connected with the upper cover plate; when the detection mechanism is in a state of stopping moving, when the axis B is overlapped with the position of the imaging mechanism in the vertical direction, the hinge part of the detection mechanism is positioned at one end of the imaging mechanism close to the hinge part, and when the other end of the hinge part of the upper cover plate is lifted, the upper cover plate is lifted up under the action of the elasticity of the hydraulic rods at two sides to expose the mounting cavity, and the PCB is in an open state at the moment and is convenient to take and place in the open state.

Further, the imaging mechanism further comprises an upper cross beam and second support columns, wherein the upper cross beam is positioned above the detection mechanism, two ends of the upper cross beam are fixedly connected with the upper parts of the two second support columns respectively, the lower parts of the second support columns are fixedly connected with the machine tool, the upper cross beam and the lower cross beam are parallel to each other on a horizontal plane, and the lower cross beam can be close to or far away from the upper cross beam along the vertical direction; the four corners of the top of the sliding plate are respectively connected with a supporting block, the lower cross beam can only move between two adjacent supporting blocks in the middle of the gap in the CD direction, and the distance between the two adjacent supporting blocks is larger than the distance between the axis A and the axis B.

Further, the height adjusting assembly comprises a base, a movable block, a limiting piece, a rotating piece and a locking piece, wherein one side of the base is fixedly connected with a first support column, the other side of the base is movably connected with the movable block through a sliding groove, the top of the movable block is in butt joint with the bottom of a lower cross beam, the movable block can drive the lower cross beam to move up and down along the vertical direction, the rotating piece is arranged on one side of the connecting surface of the movable block and the base, the locking piece corresponding to the rotating piece is arranged on the other side of the connecting surface of the movable block and the base, the rotating piece is in screwed connection with the locking piece through the connecting surface of the movable block and the base, a gear is fixedly connected onto the rotating piece, a rack corresponding to the position of the gear is arranged on the movable block, the gear and the rack are in mutual meshed movable connection, the rotating piece is rotated, the vertical moving distance of the movable block is adjusted through the meshing effect of the gear and the rack, and the locking piece is used for fixing the movable block through locking. The limiting piece is arranged below the movable block and movably connected with the base, the limiting piece is a limiting screw, the limiting screw penetrates through the base to move in the vertical direction through rotating the limiting screw, and when the limiting screw is rotated to the position where the top of the limiting screw is abutted to the bottom of the movable block, the limiting screw has a supporting effect on the movable block, so that the purpose of locking the movable block is achieved.

Further, an imaging assembly is arranged at the top of the lower cross beam and comprises a plurality of equidistant miniature industrial cameras which are arranged in a line, and the industrial cameras shoot the bottom of the PCB upwards through a glass plate in a light transmission area in the middle of the lower cover plate, so that the purpose of checking the hole position of the PCB is achieved; the imaging component on the lower beam is close to or far away from the PCB above the lower cover plate along the vertical direction by adjusting the height adjusting component, so that the optimal shooting distance and angle can be adjusted according to requirements.

Further, the bottom of entablature is equipped with light-emitting component, light-emitting component is the LED lamp pearl of a word arrangement and equidistance arrangement, and the light that LED lamp pearl sent downwards shines at the top of PCB board through the glass board of upper cover plate for industry camera light filling, thereby for industry camera shoots and provides better light environment and makes the formation of image more clear.

Further, the machine tool is further provided with a control console, and the control console is respectively and electrically connected with the motor, the imaging component and the light-emitting component of the ball screw mechanism, so that the operation of consumers is facilitated.

Compared with the prior art, the utility model has the beneficial effects that:

The utility model realizes regular and stable reciprocating movement of the detection mechanism along the linear direction through the use of the ball screw, and improves the detection efficiency and the stability of detection imaging; meanwhile, the imaging mechanism adopts the design of an upper cross beam and a lower cross beam, wherein the lower cross beam passes through a gap between the upper cover plate and the sliding plate, so that independent movement of the detection mechanism and the imaging mechanism, which is not interfered with each other, is realized, imaging is clearer, and the imaging range can cover the bottom of the whole PCB; and the lower beam is provided with a height adjusting component for adjusting the distance between the lower beam and the lower cover plate, thereby realizing the accurate focusing of the imaging component on the PCB, improving the detection efficiency and the detection stability of the PCB, optimizing the problems of high omission rate and high error detection rate, and simultaneously reducing the labor cost, thereby improving the production efficiency.

Drawings

FIG. 1 is a schematic diagram of a first embodiment of the present utility model;

FIG. 2 is a schematic diagram of a second embodiment of the present utility model;

FIG. 3 is a schematic view of the structure of the present utility model in an open state;

FIG. 4 is an exploded view of the present utility model;

FIG. 5 is a schematic view of an imaging mechanism according to the present utility model;

FIG. 6 is a side view of the utility model in an open state;

FIG. 7 is a side view of the present utility model in a closed position;

FIG. 8 is a side view of the present utility model in a testing position;

Fig. 9 is a cross-sectional view of a height adjustment assembly of the present utility model.

Reference numerals: 1-machine tool, 101-screw, 102-screw nut, 103-fixed block, 104-track, 105-slider, 2-detection mechanism, 201-sliding plate, 202-supporting block, 203-lower cover plate, 204-upper cover plate, 205-glass plate, 206-hydraulic rod, 207-rotating shaft, 3-imaging mechanism, 301-lower beam, 3011-imaging component, 302-upper beam, 3021-lighting component, 303-second supporting column, 304-height adjusting component, 305-first supporting column, 4-PCB plate, 51-gear, 52-rack.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

For the purpose of more clearly expressing the purposes and technical schemes of the embodiments of the utility model, the utility model is placed on a horizontal plane, the direction vertical to the horizontal plane is the vertical direction, and the upper part along the vertical direction is the upper part and the lower part is the lower part.

Referring to fig. 1-5;

The utility model provides a detection machine, which comprises a machine tool 1, wherein a driving mechanism is arranged in the middle of the machine tool 1, the driving mechanism is a ball screw mechanism driven by a motor (not shown), and the ball screw mechanism comprises a screw rod 101 and a screw nut 102; when the screw nut works, the motor is used for driving the screw rod 101 to rotate forward or backward, and the screw rod nut 102 moves back and forth along the length direction of the screw rod 101 under the condition of no rotation; the two sides of the ball screw mechanism are provided with a track 104 which is arranged in the same direction, the track 104 is provided with a plurality of corresponding sliding blocks 105, a detection mechanism 2 is fixedly connected above the sliding blocks 105, the detection mechanism 2 comprises a sliding plate 201, a supporting block 202 and a clamping assembly, the top of the supporting block 202 is fixedly connected with the clamping assembly, the bottom of the supporting block 202 is fixedly connected with the sliding plate 201, a gap is formed between the clamping assembly and the sliding plate 201 through the arrangement of the supporting block 202, and the bottom of the sliding plate 201 is fixedly connected with a screw nut 102 through a fixed block 103; the top of the machine tool 1 is also provided with an imaging mechanism 3, the imaging mechanism 3 comprises a lower cross beam 301 and first support columns 305, the upper parts of the two first support columns 305 are respectively and movably connected with two ends of the lower cross beam 301, a height adjusting assembly 304 is arranged at the movable connection part, the lower cross beam 301 can move up and down along the direction vertical to the horizontal plane through the height adjusting assembly 304, and the lower parts of the first support columns 305 are fixedly connected with the machine tool 1; the setting direction of the lower cross beam 301 is perpendicular to the length direction of the screw rod 101 and passes through the gap to be located between the clamping assembly and the sliding plate 201, an industrial camera (not shown) is arranged at the top of the lower cross beam 301, the PCB 4 is placed inside the clamping assembly, a light transmission area is arranged in the middle of the clamping assembly, during operation, under the forward and reverse rotation driving of a motor, the screw rod 101 rotates to drive the screw rod nut 102 and the detection mechanism 2 to reciprocate along the direction perpendicular to the imaging mechanism 3 (as shown in fig. 7 and 8), and under the imaging effect of the imaging mechanism 3, the purpose of detecting the PCB 4 is achieved.

The driving mechanism may be any mechanism that can realize linear reciprocating motion, such as a transfer plate, a transfer belt, or a ball screw.

Specifically (as shown in fig. 7), when the detection mechanism 2 moves to make the axis a or the axis B on the detection mechanism 2 overlap with the position of the imaging mechanism 3 in the vertical direction, the motor drives the screw 101 to rotate reversely, so as to drive the detection mechanism 2 to move in the opposite direction, and the moving direction of the driving mechanism is the CD direction;

The distance between the axis a and the axis B is greater than the optimal length of the PCB 4 along the CD direction.

Specifically, as shown in fig. 3 and fig. 4, the clamping assembly includes a lower cover plate 203 and an upper cover plate 204, and one end of the lower cover plate 203 is hinged to one end of the upper cover plate 204 through a rotation shaft 207 (as shown in fig. 6);

Further, as shown in fig. 3 and fig. 4, the middle parts of the upper cover plate 204 and the lower cover plate 203 are respectively provided with a light transmission area, the light transmission areas are respectively provided with a glass plate 205, when the upper cover plate 204 and the lower cover plate 203 are closed, a mounting cavity is formed between the glass plates 205 of the upper cover plate 204 and the lower cover plate 203, and the mounting cavity is used for mounting the PCB board 4 to be detected; both sides of the lower cover plate 203 and the upper cover plate 204 are provided with a hydraulic rod 206, one end of the hydraulic rod 206 is connected with the lower cover plate 203, and the other end is connected with the upper cover plate 204; the consumer can control the opening and closing of the upper cover plate 204 and the lower cover plate 203 by controlling the extension and retraction of the hydraulic rod 206, and take and put the PCB 4; when the detection mechanism 2 is in a state of stopping moving, and the axis B is overlapped with the position of the imaging mechanism 3 in the vertical direction, the hinge position of the detection mechanism 2 is positioned at one end close to the imaging mechanism 3, the other end of the hinge position of the upper cover plate 204 is lifted, the upper cover plate 204 is lifted under the assistance of the elastic force of the hydraulic rods 206 at two sides to expose the mounting cavity, and the mounting cavity is in an open state at the moment, so that the PCB 4 can be conveniently taken and placed in the open state; the upper cover 204 is closed when it is covered on top of the lower cover 203 for fixing the PCB 4.

Specifically, as shown in fig. 5 and 3, the imaging mechanism 3 further includes an upper beam 302 and a second support column 303, the upper beam 302 is located above the detection mechanism 2 and both ends thereof are fixedly connected to the upper portions of the two second support columns 303, the lower portion of the second support column 303 is fixedly connected to the machine tool 1, at this time, the upper beam 302 and the lower beam 301 are parallel to each other on the horizontal plane, and the lower beam 301 can be moved closer to or away from the upper beam 302 in the vertical direction by the height adjusting assembly 304;

Further, the four corners of the top of the sliding plate 201 are connected with supporting blocks 202, the lower beam 301 can only move between two adjacent supporting blocks 202 in the middle of the gap in the CD direction, and the distance between the two supporting blocks 202 is greater than the distance between the axis a and the axis B (as shown in fig. 7);

It should be noted that, when the upper cover 204 and the lower cover 203 are in an opened state, the upper cover 204 and the lower cover 203 form and maintain an acute angle under the connection of the rotation shaft 207 and the elastic force of the hydraulic rod 206, and the top of the upper cover 204 is still located below the upper beam 302, so that a sufficient taking and placing space is provided when the PCB board 4 is taken and placed, and the upper cover 204 cannot damage the imaging mechanism 3 due to an excessive opening angle.

Specifically, as shown in fig. 2 and 3, the height adjusting assembly 304 includes a base 3041, a movable block 3042, a limiting member 3045, a rotating member 3043 and a locking member 3044, where one side of the base 3041 is fixedly connected with the first support column 305, the other side of the base 3041 is movably connected with the movable block 3042 through a chute, the top of the movable block 3042 is in contact with the bottom of the lower cross beam 301, so that the movable block 3042 can drive the lower cross beam 301 to move vertically, one side of a connecting surface of the movable block 3042 and the base 3041 is provided with the rotating member 3043, the other side is provided with the locking member 3044 corresponding to the rotating member 3043, the rotating member 3043 passes through the connecting surface of the movable block 3042 and the base 3041 and is screwed with the locking member 3044, a gear 51 (as in fig. 9) is fixedly connected to the rotating member 3043, one side of the movable block 3042 facing the rotating member 3043 is provided with a rack 52 corresponding to the position of the gear 51, the gear 51 and 52 are mutually movably connected to rotate the rotating member 3043, so that the movable block 3042 is adjusted by the meshing effect of the gear 51 and the rack 3042, and the locking member 3042 is fixed by the distance of the locking member 3042. A limiting piece 3045 which is movably connected with the base 3041 is arranged below the movable block 3042, the limiting piece 3045 is preferably a limiting screw, the limiting screw can move in the vertical direction through the base 3041 by rotating the limiting screw, and when the limiting screw rotates to the point that the top of the limiting screw is abutted against the bottom of the movable block 3042, the limiting screw supports the movable block 3042, so that the purpose of locking the movable block 3042 is achieved;

Specifically, as shown in fig. 5 or fig. 3, an imaging component 3011 is arranged at the top of the lower beam 301, the imaging component 3011 comprises a plurality of equidistant miniature industrial cameras arranged in a line, and the industrial cameras shoot the bottom of the PCB 4 upwards through the glass plate 205 in the light-transmitting area in the middle of the lower cover plate 203, so as to achieve the purpose of checking the hole position of the PCB 4; the imaging component 3011 on the lower beam 301 is close to or far away from the PCB 4 above the lower cover plate 203 along the vertical direction by adjusting the height adjusting component 304, so that the optimal shooting distance and angle can be adjusted according to the requirement;

further, the bottom of the upper beam 302 is provided with a light emitting assembly 3021, the light emitting assembly 3021 is LED light beads (not shown) arranged in a line and equidistantly arranged, the light emitted downward by the LED light beads irradiates the top of the PCB board 4 through the glass plate 205 of the upper cover plate 204, for supplementing light for the industrial camera, thereby providing a better light environment for the industrial camera to shoot so as to make the imaging clearer,

Specifically, the machine tool 1 is further provided with a console (not shown), and the console is electrically connected with the motor of the ball screw mechanism, the imaging component 3011 and the light emitting component 3021, respectively, so as to facilitate operation of consumers.

The following is a detailed description of the working principle of an application embodiment of the utility model in automated detection;

Referring to fig. 6-7;

When the PCB 4 is used, when the axis B of the detection mechanism 2 is overlapped with the position of the imaging mechanism 3 in the vertical direction, a consumer lifts the other end of the hinged position of the upper cover plate 204, lifts the upper cover plate 204 under the action of the elasticity of the hydraulic rods 206 at two sides in a boosting way to enable the mounting cavity to be exposed, so that the opening state is shown, then the PCB 4 is placed into the mounting cavity, and the other end of the hinged position of the upper cover plate 204 is pressed down until the upper cover plate 204 covers the top of the lower cover plate 203 to be in the closing state, so that the fixing of the PCB 4 is realized, and at the moment, the top and the bottom of the PCB 4 are transparent glass plates 205;

After the equipment is electrified, the control console starts to detect the PCB 4 in the mounting cavity after receiving the detected signal, the motor receives the signal sent by the control console and starts to realize forward rotation or reverse rotation on the screw 101 according to the instruction, so that the screw nut 102 and the fixed block 103 are driven to move regularly along the CD direction, and the fixed block 103 is fixedly connected with the detection mechanism 2, so that the detection mechanism 2 can also move synchronously along with the screw nut 102 under the driving of the fixed block 103; at the same time, the light emitting assembly 3021 and the imaging assembly 3011 on the imaging mechanism 3 also start to operate,

During the movement, the imaging mechanism 3 is fixed in the direction perpendicular to the CD, the upper beam 302 of the imaging mechanism 3 is positioned on the top of the upper cover plate 204, and the lower beam 301 passes through the gap, so that the detection mechanism 2 moves in the CD without interfering with the imaging mechanism 3; at this time, the imaging component 3011 at the top of the lower beam 301 shoots the bottom of the PCB board 4 in the moving detection mechanism 2 through the glass plate 205 in the lower cover plate 203, and at the same time, the light emitting component 3021 at the bottom of the upper beam 302 shoots the imaging component 3011 through the glass plate 205 of the upper cover plate 204, so that the imaging component 3011 has better light environment to further optimize shooting effect,

Finally, through the regular back and forth movement of the detection mechanism 2 along the CD direction and the shooting of the imaging mechanism 3, image data are formed and transmitted to the control console from the imaging mechanism 3, and the control console obtains a detection photo and a corresponding detection result of the PCB 4 through modes of image data synthesis, comparison, analysis and the like, so that a worker can conveniently detect the quality condition of the PCB 4.

The utility model has the advantages that the regular and stable reciprocating movement of the detection mechanism 2 along the length direction of the screw rod 101 is realized through the matching of the screw rod 101, the screw rod nut 102 and the track 104, and the detection efficiency and the detection imaging stability are improved; meanwhile, the imaging mechanism 3 adopts the design of an upper beam 302 and a lower beam 301, the upper beam 302 is positioned above the upper cover plate 204 to supplement light for the imaging component 3011, and the lower beam 301 passes through a gap between the upper cover plate 204 and the sliding plate 201, so that independent movement of the detection mechanism 2 and the imaging mechanism 3 which are not mutually interfered is realized, imaging is clearer, and the imaging range can cover the bottom of the whole PCB 4; wherein, the bottom end rail 301 is equipped with high adjusting part 304 for thereby adjust the distance of bottom end rail 301 and lower apron 203 and realize that imaging part 3011 is to the accurate optimization shooting effect that focuses of PCB board 4, improved the detection efficiency and the detection stability of PCB board 4, thereby optimized the problem that the leak detection rate is high and the mistake is detected rate is high, thereby reduced the cost of labor and improved productivity ratio.

Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the embodiments of the disclosure may be suitably combined to form other embodiments as will be understood by those skilled in the art.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The detecting machine is characterized by comprising a machine tool (1), wherein a driving mechanism is arranged on the machine tool (1), the driving mechanism can linearly reciprocate, and a detecting mechanism (2) is connected above the driving mechanism;

The detection mechanism (2) comprises a sliding plate (201), a supporting block (202) and a clamping assembly, wherein the top of the supporting block (202) is fixedly connected with the clamping assembly, the bottom of the supporting block is fixedly connected with the sliding plate (201), and a gap is formed between the clamping assembly and the sliding plate (201) through the arrangement of the supporting block (202);

The top of the machine tool (1) is provided with an imaging mechanism (3), the imaging mechanism (3) comprises a lower cross beam (301) and first support columns (305), the upper parts of the two first support columns (305) are respectively and movably connected with two ends of the lower cross beam (301), the movable connection part is provided with a height adjusting component (304), the lower cross beam (301) can move up and down along the direction vertical to the horizontal plane through the height adjusting component (304), and the lower parts of the first support columns (305) are fixedly connected with the machine tool (1); the arrangement direction of the lower cross beam (301) is perpendicular to the movement direction of the driving mechanism and penetrates through the gap to be positioned between the clamping assembly and the sliding plate (201), an industrial camera is arranged at the top of the lower cross beam (301), a PCB (4) is arranged in the clamping assembly, and a light transmission area is arranged in the middle of the clamping assembly;

When the PCB detection device is in operation, under the drive of the driving mechanism, the detection mechanism (2) moves back and forth along the setting direction perpendicular to the imaging mechanism (3), and under the imaging effect of the imaging mechanism (3), the purpose of detecting the PCB (4) is achieved.

2. The machine of claim 1, wherein the drive mechanism is a powered ball screw mechanism; when the detection mechanism (2) moves to enable the axis A or the axis B on the detection mechanism (2) to be overlapped with the position of the imaging mechanism (3) in the vertical direction, the motor drives the screw (101) on the ball screw mechanism to reversely rotate, so that the detection mechanism (2) is driven to move in the opposite direction; the moving direction of the driving mechanism is the CD direction.

3. A machine according to claim 2, characterized in that the distance of the axis a from the axis B is greater than the length of the PCB board (4) in the CD direction.

4. A machine according to claim 3, wherein the clamping assembly comprises a lower cover plate (203) and an upper cover plate (204), one end of the lower cover plate (203) being hinged to one end of the upper cover plate (204) by a rotation shaft (207).

5. The machine according to claim 4, wherein the middle parts of the upper cover plate (204) and the lower cover plate (203) are respectively provided with a light transmission area, the light transmission areas are respectively provided with a glass plate (205), and when the upper cover plate (204) and the lower cover plate (203) are closed, a mounting cavity is formed between the glass plates (205) of the upper cover plate (204) and the lower cover plate (203), and the mounting cavity is used for mounting the PCB (4) to be detected; both sides of the lower cover plate (203) and the upper cover plate (204) are respectively provided with a hydraulic rod (206), one end of the hydraulic rod (206) is connected with the lower cover plate (203), and the other end is connected with the upper cover plate (204);

When the detection mechanism (2) is in a state of stopping moving, and the axis B is overlapped with the position of the imaging mechanism (3) in the vertical direction, at the moment, the hinge position of the detection mechanism (2) is positioned at one end close to the imaging mechanism (3), and when the other end of the hinge position of the upper cover plate (204) is lifted, the upper cover plate (204) is lifted under the assistance of the elasticity of the hydraulic rods (206) at two sides to expose the mounting cavity, and at the moment, the detection mechanism is in an open state, and the PCB (4) is conveniently taken and placed in the open state; when the upper cover plate (204) covers the top of the lower cover plate (203), the upper cover plate is in a closed state and is used for fixing the PCB (4).

6. The machine according to claim 5, wherein the imaging mechanism (3) further comprises an upper beam (302) and second support columns (303), the upper beam (302) is located above the detecting mechanism (2) and two ends of the upper beam are fixedly connected with the upper parts of the two second support columns (303), the lower parts of the second support columns (303) are fixedly connected with the machine tool (1), the upper beam (302) and the lower beam (301) are parallel to the horizontal plane, and the lower beam (301) can be close to or far from the upper beam (302) along the vertical direction;

The four corners of the top of the sliding plate (201) are respectively connected with a supporting block (202), the lower cross beam (301) can only move between two adjacent supporting blocks (202) in the middle of the gap in the CD direction, and the distance between the two adjacent supporting blocks (202) is larger than the distance between the axis A and the axis B.

7. The detecting machine according to claim 6, wherein the height adjusting assembly (304) comprises a base (3041), a movable block (3042), a limiting piece (3045), a rotating piece (3043) and a locking piece (3044), one side of the base (3041) is fixedly connected with the first supporting column (305), the other side of the base is movably connected with the movable block (3042) through a chute, and the top of the movable block (3042) is abutted to the bottom of the lower cross beam (301), so that the movable block (3042) can drive the lower cross beam (301) to move up and down along the vertical direction; a rotating piece (3043) is arranged on one side of the connecting surface of the movable block (3042) and the base (3041), a locking block (3044) corresponding to the rotating piece (3043) is arranged on the other side of the connecting surface of the movable block (3042) and the base (3041), the rotating piece (3043) penetrates through the connecting surface of the movable block (3042) and the base (3041) to be connected with the locking block (3044) in a rotating mode, a gear (51) is fixedly connected to the rotating piece (3043), a rack (52) corresponding to the gear (51) is arranged on the movable block (3042), the gear (51) and the rack (52) are in mutual meshing and movable connection, the rotating piece (3043) is rotated, the up-down moving distance of the movable block (3042) is adjusted through the meshing action of the gear (51) and the locking block (3044) is locked, and the movable block (3042) is fixed. And a limiting piece (3045) movably connected with the base (3041) is arranged below the movable block (3042), the limiting piece (3045) is a limiting screw, the limiting screw penetrates through the base (3041) to move in the vertical direction by rotating the limiting screw, and when the limiting screw is rotated to the top of the limiting screw to be abutted with the bottom of the movable block (3042), the limiting screw supports the movable block (3042), so that the purpose of locking the movable block (3042) is achieved.

8. The detector according to claim 7, wherein the imaging assembly (3011) is arranged at the top of the lower beam (301), the imaging assembly (3011) comprises a plurality of equidistant miniature industrial cameras which are arranged in a straight line, and the industrial cameras shoot the bottom of the PCB (4) upwards through the glass plate (205) in the middle light transmission area of the lower cover plate (203), so as to achieve the purpose of checking the hole position of the PCB (4); the imaging assembly (3011) on the lower cross beam (301) is enabled to be close to or far away from the PCB (4) above the lower cover plate (203) along the vertical direction by adjusting the height adjusting assembly (304), so that the optimal shooting distance and angle can be adjusted according to requirements.

9. The detecting machine according to claim 8, wherein a light emitting component (3021) is arranged at the bottom of the upper beam (302), the light emitting component (3021) is LED lamp beads which are arranged in a straight line and are equidistantly arranged, and light emitted downwards by the LED lamp beads irradiates the top of the PCB board (4) through a glass plate (205) of the upper cover plate (204) for supplementing light for the industrial camera, so that better light environment is provided for shooting of the industrial camera, and imaging is clearer.

10. The machine according to claim 9, wherein the machine tool (1) is further provided with a console electrically connected to the motor of the ball screw mechanism, the imaging assembly (3011) and the light emitting assembly (3021), respectively.