CN215572855U

CN215572855U - PCB deformation detection device

Info

Publication number: CN215572855U
Application number: CN202121058821.2U
Authority: CN
Inventors: 钟晓环; 刘建波; 雷仁庆
Original assignee: Boluo Konka Exactitude Science Technology Co ltd
Current assignee: Boluo Konka Exactitude Science Technology Co ltd
Priority date: 2021-05-17
Filing date: 2021-05-17
Publication date: 2022-01-18
Anticipated expiration: 2031-05-17

Abstract

The utility model relates to a PCB board detects technical field, discloses a PCB board deformation detection device, including bottom plate, pick-up plate, supporting component, lifting subassembly and the subassembly of exerting pressure, the pick-up plate is located the bottom plate directly over, be provided with four support columns that are the matrix distribution between pick-up plate and the bottom plate, the supporting component is installed at the top of pick-up plate, the lifting unit mount is at the top of bottom plate, and the top of lifting subassembly runs through the bottom of pick-up plate and upwards extends, the subassembly of exerting pressure is located supporting component's side, and the subassembly of exerting pressure installs the top at the pick-up plate. The utility model has the advantages that: through the setting of supporting component, can carry out centre gripping and detection work to the PCB board of different thickness.

Description

PCB deformation detection device

Technical Field

The application relates to the technical field of PCB (printed circuit board) detection, in particular to a PCB deformation detection device.

Background

PCB (printed Circuit board), also called printed Circuit board, is an important electronic component, is a support for electronic components, is a provider for electrical connection of electronic components, and during the manufacturing process of PCB, the testing procedure of PCB is very important, which is a critical loop affecting the quality of shipped products; the existing PCB warpage detection method includes the steps of firstly, horizontally placing a PCB on a platform, then manually picking up a plug gauge to enable the plug gauge to be flatly attached to the platform, and then enabling the plug gauge to be close to one corner of the PCB where the PCB is the highest in warpage along the platform. If the plug gauge can move into the PCB from the end angle, the bending degree of the PCB is beyond the tolerance range, and the plug gauge is not suitable for subsequent assembly operation.

However, the mode of current detection PCB board bending degree need be with the manual work to pick up the plug gauge and detect, and its process is wasted time and energy, causes the detection inaccurate easily moreover, and the operation process causes the face to pollute easily, quality such as finger print is unusual, increases the processing step, and in addition, current detection mode can't realize that different thickness PCB boards switch the detection wantonly, consequently, is necessary to improve it.

SUMMERY OF THE UTILITY MODEL

The embodiment of the application provides a PCB board deformation detection device, including bottom plate, pick-up plate, supporting component, lifting subassembly and the subassembly of exerting pressure, the pick-up plate is located the bottom plate directly over, be provided with four support columns that are matrix distribution between pick-up plate and the bottom plate, the supporting component is installed at the top of pick-up plate, the lifting subassembly is installed at the top of bottom plate, and the top of lifting subassembly runs through the bottom of pick-up plate and upwards extends, the subassembly of exerting pressure is located supporting component's side, and the subassembly of exerting pressure is installed at the top of pick-up plate.

Further, the supporting component comprises a PCB, two supporting plates, two pressing pieces and two adjusting pieces, wherein the supporting plates are installed at the top of the detection plate at intervals, the two pressing pieces are symmetrically arranged on one side wall of the two supporting plates, the two adjusting pieces are respectively positioned under the two adjusting pieces, and the PCB is horizontally positioned between the two adjusting pieces and the two pressing pieces.

Furthermore, each adjusting part comprises an adjusting plate, a first telescopic rod, a first telescopic column, a telescopic spring, an adjusting seat, a trapezoidal plate, a handle, an adjusting shaft and an adjusting spring, wherein the top of the detecting plate is provided with two adjusting grooves which are arranged at intervals and are respectively positioned beside the two supporting plates, the trapezoidal plate is slidably mounted in the adjusting grooves, one end of the trapezoidal plate penetrates through the other side wall of the supporting plate and extends forwards, the handle is mounted at the other end of the trapezoidal plate, the adjusting shaft is horizontally positioned in the adjusting grooves, one end of the adjusting shaft is spliced with the other end of the trapezoidal plate, the other end of the adjusting shaft is fixedly connected with the inner side wall of the detecting plate, the adjusting spring is sleeved on the adjusting shaft, the two ends of the adjusting spring are respectively fixedly connected with the inner side wall of the detecting plate and the other end of the trapezoidal plate, the adjusting seat is slidably mounted on one side wall of the supporting plate, and adjust the bottom of seat and the top looks overlap joint of trapezoidal plate, the bottom of adjusting the seat is the slope setting, first flexible post is the level form and installs on the lateral wall of adjusting the seat, the one end of first telescopic link is pegged graft mutually with the top of first flexible post, expanding spring's one end and the one end fixed connection of first telescopic link, and expanding spring's the other end and the interior diapire fixed connection of first flexible post, the regulating plate is installed on the other end of first telescopic link, and the bottom of regulating plate is the slope setting.

Further, every the pressing piece all includes pressing plate, second telescopic link, the flexible post of second, presses seat and pressing spring, seted up on the lateral wall of backup pad and pressed the indent, press seat slidable mounting in pressing the indent, it is vertical form to be located and presses the indent to press the spring, and presses the both ends of spring respectively with the interior diapire of backup pad and the bottom fixed connection who presses the seat, the flexible post of second is the level form and installs on pressing the lateral wall of seat, the one end of second telescopic link is pegged graft mutually with the top of the flexible post of second, and presses the pressing plate to install on the other end of second telescopic link, the joint groove has been seted up at the top of pressing the pressing plate.

Furthermore, the lifting assembly comprises a base, a rotating motor, a rotating disc, a hinged arm, a hinged block, a triangular plate and two guide plates, wherein the two guide plates are arranged at the top of the bottom plate at intervals, the tops of the two guide plates penetrate through the bottom of the detection plate and extend upwards, the base is positioned beside the two guide plates, the base is arranged on the top of the bottom plate, the rotating motor is arranged on the top of the base, the rotating disk is positioned between the two guide plates and the base, one side wall of the rotating disc is fixedly connected with the output end of the rotating motor, the hinge arm is hinged on the other side wall of the rotating disc, the triangular plate is positioned between the two guide plates, and the both ends of set square respectively with two deflector sliding connection, the bottom at the set square is installed to articulated piece, the bottom of articulated piece is articulated mutually with the top of articulated arm.

Further, the pressure applying assembly comprises a screw rod sliding table, a vertical plate, a fixed plate, a pressure applying motor, a pressure applying gear, a rack plate, an L-shaped plate, a pressure applying plate and two tripods, the screw rod sliding table is positioned at the side of the two supporting plates, the screw rod sliding table is fixedly arranged at the top of the detection plate, the vertical plate is vertically arranged at the moving end of the screw rod sliding table, the two tripods are arranged at the side wall of the vertical plate, the fixed plate is arranged at the top of the two tripods, the pressure applying motor is arranged at the top of the fixed plate, the pressure applying gear is arranged at the output end of the pressure applying motor, the rack plate is positioned at the side of the pressure applying gear, the rack plate is meshed with the pressure applying gear, the L-shaped plate is positioned at the side of the rack plate, one end of the L-shaped plate is fixedly connected with the side wall of the rack plate, and the other end of the L-shaped plate is slidably connected with the side wall of the vertical plate, the pressing plate is located right above the two pressing plates, the top of the pressing plate is fixedly connected with the bottom of the rack plate, and the clamping block is installed at the bottom of the pressing plate.

The embodiment of the application adopts at least one technical scheme which can achieve the following beneficial effects:

firstly, the trapezoidal plate is driven to move by pulling the handles at two sides, so that the adjusting seat which is in lap joint with the trapezoidal plate drives the adjusting plate to move along the inclined plane of the trapezoidal plate, thereby adjusting the distance between the adjusting plate and the pressing piece, and then the PCB plates with different thicknesses can be clamped, after the PCB plates are clamped and fixed, the adjusting plate is pushed to two sides to move towards the first telescopic column along the length direction of the first telescopic rod by the lifting component to adjust the distance between the two adjusting plates, the bottom of the PCB plate during detection is supported, after the detection is finished, the lifting component descends, the two adjusting plates and the two first telescopic rods return to the original position under the elastic action of the two telescopic springs, then the PCB plate after the detection is taken away, the two trapezoidal plates return to the original position under the elastic action of the two adjusting springs, and the adjusting seat which is in lap joint with the trapezoidal plate returns to the original position, so as to facilitate the test work of the next PCB.

And secondly, the rotating disc is driven to rotate by the rotating motor, the triangular plate is lifted between the two guide plates by the hinged arm, the rotating disc and the hinged block, and when the triangular plate is lifted between the two adjusting plates, the inclined planes of the two adjusting plates are abutted to the inclined plane of the triangular plate, so that the distance between the two adjusting plates is enlarged, the bottom of the PCB under test is supported, and the practicability of the utility model is improved.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

FIG. 1 is a schematic perspective view of the present invention;

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

FIG. 3 is an enlarged view taken at A in FIG. 2;

FIG. 4 is an exploded perspective view of a portion of the support assembly of the present invention;

figure 5 is a schematic perspective view of the lift assembly of the present invention.

In the figure: the base plate 1, the detection plate 2, the adjustment groove 21, the support assembly 3, the PCB 31, the support plate 32, the pressing member 33, the pressing plate 331, the second telescopic rod 332, the second telescopic column 333, the pressing base 334, the pressing spring 335, the clamping groove 336, the adjustment member 34, the adjustment plate 341, the first telescopic rod 342, the first telescopic column 343, the telescopic spring 344, the adjustment base 345, the trapezoidal plate 346, the handle 347, the adjustment shaft 348, the adjustment spring 349, the pressing groove 35, the lifting assembly 4, the base 41, the rotating motor 42, the rotating disc 43, the hinge arm 44, the hinge block 45, the triangular plate 46, the guide plate 47, the pressing assembly 5, the screw rod sliding table 51, the vertical plate 52, the fixing plate 53, the pressing motor 54, the pressing gear 55, the rack plate 56, the L-shaped plate 57, the pressing plate 58, the triangular bracket 59, the clamping block 510, and the support column 6.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings. It should be apparent that the described embodiments are only some of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The technical solutions provided by the embodiments of the present application are described in detail below with reference to the accompanying drawings.

In this embodiment, as shown in fig. 1 to 5, a PCB deformation detection device includes a bottom plate 1, a detection plate 2, a support assembly 3, a lifting assembly 4 and a pressing assembly 5, the detection plate 2 is located right above the bottom plate 1, four support columns 6 distributed in a matrix are arranged between the detection plate 2 and the bottom plate 1, the support assembly 3 is installed at the top of the detection plate 2, the lifting assembly 4 is installed at the top of the bottom plate 1, the top of the lifting assembly 4 penetrates through the bottom of the detection plate 2 and extends upwards, the pressing assembly 5 is located beside the support assembly 3, and the pressing assembly 5 is installed at the top of the detection plate 2.

Specifically, the supporting component 3 includes a PCB 31, two supporting plates 32, two pressing members 33 and two adjusting members 34, two supporting plates 32 are installed at the top of the detecting plate 2 at intervals, two pressing members 33 are symmetrically arranged on a side wall of the two supporting plates 32, two adjusting members 34 are symmetrically arranged on a side wall of the two supporting plates 32, and the two adjusting members 34 are respectively located under the two adjusting members 34, the PCB 31 is horizontally located between the two adjusting members 34 and the two pressing members 33, and the spacing between the adjusting members 34 and the pressing members 33 is adjusted by pulling the adjusting members 34, so that the PCB 31 with different thicknesses can be clamped and detected, the pressing members 33 are pressed by the pressing component 5, and the bending degree of the PCB 31 is detected.

Specifically, each adjusting member 34 includes an adjusting plate 341, a first telescopic rod 342, a first telescopic column 343, a telescopic spring 344, an adjusting seat 345, a trapezoidal plate 346, a handle 347, an adjusting shaft 348 and an adjusting spring 349, the top of the detecting plate 2 is provided with two adjusting grooves 21 arranged at intervals, the two adjusting grooves 21 are respectively located at the sides of the two supporting plates 32, the trapezoidal plate 346 is slidably installed in the adjusting grooves 21, one end of the trapezoidal plate 346 penetrates through the other side wall of the supporting plate 32 and extends forwards, the handle 347 is installed at the other end of the trapezoidal plate 346, the adjusting shaft 348 is horizontally located in the adjusting grooves 21, one end of the adjusting shaft 348 is inserted into the other end of the trapezoidal plate 346, the other end of the adjusting shaft 348 is fixedly connected with the inner side wall of the detecting plate 2, the adjusting spring 349 is sleeved on the adjusting shaft 348, and the two ends of the adjusting spring 349 are respectively fixedly connected with the inner side wall of the trapezoidal plate 2 and the other end of the trapezoidal plate 346, the adjusting seat 345 is slidably mounted on a side wall of the supporting plate 32, the bottom of the adjusting seat 345 is overlapped with the top of the trapezoidal plate 346, the bottom of the adjusting seat 345 is obliquely arranged, the first telescopic column 343 is horizontally mounted on the side wall of the adjusting seat 345, one end of the first telescopic rod 342 is inserted into the top of the first telescopic column 343, one end of the telescopic spring 344 is fixedly connected with one end of the first telescopic rod 342, the other end of the telescopic spring 344 is fixedly connected with the inner bottom wall of the first telescopic column 343, the adjusting plate 341 is mounted on the other end of the first telescopic rod 342, the bottom of the adjusting plate 341 is obliquely arranged, the trapezoidal plate 346 is driven to move by pulling the handles 347 at both sides, so that the adjusting seat 345 overlapped with the trapezoidal plate is driven by the adjusting plate 341 to move along the inclined surface of the trapezoidal plate 346, thereby adjusting the distance between the adjusting plate 341 and the adjusting member 33, the PCB 31 of different thickness can be clamped, after the PCB 31 is clamped and fixed, the PCB rises through the lifting assembly 4, the adjusting plates 341 are pushed to two sides to move towards the first telescopic column 343 along the length direction of the first telescopic rod 342, the distance between the two adjusting plates 341 is adjusted, the bottom of the PCB 31 during detection is supported, after the detection is finished, the lifting assembly 4 descends, the two adjusting plates 341 and the two first telescopic rods 342 restore to the original positions under the elastic action of the two telescopic springs 344, then the PCB 31 after the detection is finished is taken away, the two trapezoidal plates 346 restore to the original positions under the elastic action of the two adjusting springs 349, the adjusting seats 345 in lap joint collision with the trapezoidal plates 346 are restored to the original positions, and the next PCB 31 is convenient to test.

Specifically, each of the pressing members 33 includes a pressing plate 331, a second telescopic rod 332, a second telescopic column 333, a pressing base 334 and a pressing spring 335, a pressing groove 35 is formed on one side wall of the supporting plate 32, the pressing seat 334 is slidably mounted in the pressing groove 35, the pressing spring 335 is vertically positioned in the pressing groove 35, and both ends of the pressing spring 335 are fixedly connected with the inner bottom wall of the supporting plate 32 and the bottom of the pressing seat 334 respectively, the second telescopic column 333 is horizontally installed on the sidewall of the pressing seat 334, one end of the second telescopic rod 332 is inserted into the top of the second telescopic column 333, and the pressing plate 331 is installed on the other end of the second telescopic rod 332, the top of the pressing plate 331 is provided with a clamping groove 336, the pressing plate 331 is pressed by the pressing assembly 5 so that the pressing plate 331 performs a pressing work on the PCB 31, thereby testing a bending deformation degree of the PCB 31.

Specifically, the lifting assembly 4 comprises a base 41, a rotating motor 42, a rotating disk 43, an articulated arm 44, an articulated block 45, a triangular plate 46 and two guide plates 47, wherein two guide plates 47 are installed at the top of the base plate 1 at intervals, the tops of the two guide plates 47 all penetrate through the bottom of the detection plate 2 and extend upwards, the base 41 is located beside the two guide plates 47, the base 41 is installed at the top of the base plate 1, the rotating motor 42 is installed at the top of the base 41, the rotating disk 43 is located between the two guide plates 47 and the base 41, one side wall of the rotating disk 43 is fixedly connected with the output end of the rotating motor 42, the articulated arm 44 is articulated and arranged on the other side wall of the rotating disk 43, the triangular plate 46 is located between the two guide plates 47, the two ends of the triangular plate 46 are respectively connected with the two guide plates 47 in a sliding manner, the articulated block 45 is installed at the bottom of the triangular plate 46, the bottom of the hinge block 45 is hinged to the top of the hinge arm 44, the rotating disc 43 is driven to rotate by the rotating motor 42, the hinge arm 44 is hinged to the rotating disc 43 and the hinge block 45, so that the triangular plate 46 is lifted between the two guide plates 47, when the triangular plate 46 is lifted between the two adjusting plates 341, the inclined surfaces of the two adjusting plates 341 are abutted to the inclined surfaces of the triangular plate 46, the distance between the two adjusting plates 341 is enlarged, and the bottom of the PCB 31 under test is supported.

Specifically, pressure applying assembly 5 includes lead screw slip table 51, riser 52, fixed plate 53, pressure applying motor 54, gear 55, rack plate 56, L template 57, pressure applying plate 58 and two tripods 59, lead screw slip table 51 is located the side of two backup pads 32, and lead screw slip table 51 fixed mounting is at the top of pick-up plate 2, riser 52 is vertical form and installs on the removal end of lead screw slip table 51, two tripod 59 is the interval and installs on the lateral wall of riser 52, the top at two tripods 59 is installed to fixed plate 53, the top at fixed plate 53 is installed to pressure applying motor 54, pressure applying gear 55 is installed on the output of pressure applying motor 54, rack plate 56 is located the side of pressure applying gear 55, and rack plate 56 meshes with pressure applying gear 55 mutually, L template 57 is located the side of rack plate 56, the one end of L template 57 and the side lateral wall fixed connection of rack plate 56, and the other end of the L-shaped plate 57 is connected with the side wall of the vertical plate 52 in a sliding manner, the pressing plate 58 is located right above the two pressing plates 331, the top of the pressing plate 58 is fixedly connected with the bottom of the rack plate 56, the clamping block 510 is installed at the bottom of the pressing plate 58, when the PCB 31 needs to be tested, the pressing motor 54 drives the rack plate 56 to drive the pressing plate 58 to descend to the top of one pressing plate 331 and clamp the clamping block 510 with the clamping groove 336, then the lead screw sliding table 51 drives the vertical plate 52 to move to drive the pressing plate 331 to move to a place on the PCB 31 to be tested, then the pressing motor 54 drives the pressing plate 58 to press downwards to drive the pressing plate 331 to test the bending degree of the place on the PCB 31, meanwhile, the pressing seat 334 can also move along with the pressing of the pressing plate 331, and the pressing motor 54 drives the pressing plate 58 to return to the original position after the test is completed, under the elastic action of the pressing spring 335, the pressing base 334 carries the pressing plate 331 to return to the original position, and the PCB testing operation is completed.

The working process of the embodiment of the application is as follows: the trapezoidal plate 346 is driven to move by pulling the handles 347 at both sides, so that the adjusting seat 345 overlapped with the trapezoidal plate 346 drives the adjusting plate 341 to move along the inclined surface of the trapezoidal plate 346, thereby adjusting the distance between the adjusting plate 341 and the pressing piece 33, and then the PCB 31 with different thicknesses can be clamped, after the PCB 31 is clamped and fixed, the rotating disc 43 is driven to rotate by the rotating motor 42, the triangular plate 46 is lifted between the two guide plates 47 by the hinging arrangement of the hinging arm 44, the rotating disc 43 and the hinging block 45, when the triangular plate 46 is lifted between the two adjusting plates 341, the inclined surfaces of the two adjusting plates 341 are abutted against the inclined surface of the triangular plate 46, thereby enlarging the distance between the two adjusting plates 341, supporting the bottom of the PCB 31 under test, when the PCB 31 needs to be tested, the pressing motor 54 drives the rack plate 56 to drive the pressing plate 58 to descend to the top of one pressing plate 331, and make joint piece 510 and joint groove 336 joint mutually, later lead screw slip table 51 drive riser 52 removes, drive press the place that the board 331 moved to need the test on PCB board 31, later on motor 54 drive application of pressure drives application of pressure 58 and pushes down, drive press the place that board 331 tested on PCB board 31 and carry out the bending degree test, press seat 334 also can move along with pressing down of press board 331 simultaneously, motor 54 drive application of pressure returns the normal position after the test is accomplished, under the elastic action of pressing spring 335, press seat 334 and take press board 331 to return the normal position, accomplish the test work to PCB.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. The utility model provides a PCB board deformation detection device which characterized in that: including bottom plate (1), pick-up plate (2), supporting component (3), lifting subassembly (4) and subassembly (5) of exerting pressure, pick-up plate (2) are located bottom plate (1) directly over, be provided with four support columns (6) that are matrix distribution between pick-up plate (2) and bottom plate (1), the top at pick-up plate (2) is installed in supporting component (3), lifting subassembly (4) are installed at the top of bottom plate (1), and the top of lifting subassembly (4) runs through the bottom of pick-up plate (2) and upwards extend, subassembly (5) of exerting pressure are located the side of supporting component (3), and subassembly (5) of exerting pressure are installed at the top of pick-up plate (2).

2. The PCB deformation detecting device of claim 1, wherein: supporting component (3) include PCB board (31), two backup pads (32), two pressing parts (33) and two regulating part (34), two backup pad (32) are the interval and install the top at pick-up plate (2), two pressing part (33) are the symmetry and set up on a lateral wall of two backup pads (32), two regulating part (34) are the symmetry and set up on a lateral wall of two backup pads (32), and just two regulating part (34) are located two regulating part (34) respectively under, PCB board (31) are the level form and are located between two regulating part (34) and two pressing parts (33).

3. The PCB deformation detecting device of claim 2, wherein: each adjusting piece (34) comprises an adjusting plate (341), a first telescopic rod (342), a first telescopic column (343), a telescopic spring (344), an adjusting seat (345), a trapezoidal plate (346), a handle (347), an adjusting shaft (348) and an adjusting spring (349), wherein the top of the detecting plate (2) is provided with two adjusting grooves (21) which are arranged at intervals, the two adjusting grooves (21) are respectively positioned at the sides of the two supporting plates (32), the trapezoidal plate (346) is slidably mounted in the adjusting grooves (21), one end of the trapezoidal plate (346) penetrates through the other side wall of the supporting plate (32) and extends forwards, the handle (347) is mounted at the other end of the trapezoidal plate (346), the adjusting shaft (348) is horizontally positioned in the adjusting grooves (21), one end of the adjusting shaft (348) is inserted into the other end of the trapezoidal plate (346), and the other end of the adjusting shaft (348) is fixedly connected with the inner side wall of the detecting plate (2), the adjusting shaft (348) is sleeved with the adjusting spring (349), two ends of the adjusting spring (349) are fixedly connected with the inner side wall of the detection plate (2) and the other end of the trapezoidal plate (346) respectively, the adjusting seat (345) is slidably mounted on one side wall of the supporting plate (32), the bottom of the adjusting seat (345) is overlapped with the top of the trapezoidal plate (346), the bottom of the adjusting seat (345) is obliquely arranged, the first telescopic column (343) is horizontally mounted on the side wall of the adjusting seat (345), one end of the first telescopic rod (342) is inserted into the top of the first telescopic column (343), one end of the telescopic spring (344) is fixedly connected with one end of the first telescopic rod (342), the other end of the telescopic spring (344) is fixedly connected with the inner bottom wall of the first telescopic column (343), the adjusting plate (341) is mounted at the other end of the first telescopic rod (342), and the bottom of the adjusting plate (341) is arranged obliquely.

4. The PCB deformation detecting device of claim 2, wherein: each pressing piece (33) comprises a pressing plate (331), a second telescopic rod (332), a second telescopic column (333), a pressing seat (334) and a pressing spring (335), a pressing groove (35) is formed in one side wall of the supporting plate (32), the pressing seat (334) is slidably mounted in the pressing groove (35), the pressing spring (335) is vertically positioned in the pressing groove (35), and both ends of the pressing spring (335) are respectively fixedly connected with the inner bottom wall of the supporting plate (32) and the bottom of the pressing seat (334), the second telescopic column (333) is horizontally arranged on the side wall of the pressing seat (334), one end of the second telescopic rod (332) is inserted with the top of the second telescopic column (333), and the pressing plate (331) is installed on the other end of the second telescopic rod (332), and the top of the pressing plate (331) is provided with a clamping groove (336).

5. The PCB deformation detecting device of claim 1, wherein: the lifting assembly (4) comprises a base (41), a rotating motor (42), a rotating disc (43), an articulated arm (44), an articulated block (45), a triangular plate (46) and two guide plates (47), wherein the two guide plates (47) are arranged at the top of the base plate (1) at intervals, the tops of the two guide plates (47) penetrate through the bottom of the detection plate (2) and extend upwards, the base (41) is positioned at the lateral sides of the two guide plates (47), the base (41) is arranged at the top of the base plate (1), the rotating motor (42) is arranged at the top of the base (41), the rotating disc (43) is positioned between the two guide plates (47) and the base (41), one side wall of the rotating disc (43) is fixedly connected with the output end of the rotating motor (42), the articulated arm (44) is arranged on the other side wall of the rotating disc (43) in an articulated manner, the set square (46) is located between two guide plates (47), and the both ends of set square (46) respectively with two guide plates (47) sliding connection, the bottom at set square (46) is installed to articulated piece (45), the bottom of articulated piece (45) is articulated mutually with the top of articulated arm (44).

6. The PCB deformation detecting device of claim 1, wherein: the pressure applying assembly (5) comprises a screw rod sliding table (51), a vertical plate (52), a fixing plate (53), a pressure applying motor (54), a pressure applying gear (55), a rack plate (56), an L-shaped plate (57), a pressure applying plate (58) and two tripods (59), wherein the screw rod sliding table (51) is positioned at the lateral sides of the two supporting plates (32), the screw rod sliding table (51) is fixedly arranged at the top of the detection plate (2), the vertical plate (52) is vertically arranged at the moving end of the screw rod sliding table (51), the two tripods (59) are arranged on the lateral wall of the vertical plate (52) at intervals, the fixing plate (53) is arranged at the top of the two tripods (59), the pressure applying motor (54) is arranged at the top of the fixing plate (53), the pressure applying gear (55) is arranged at the output end of the pressure applying motor (54), the rack plate (56) is positioned at the lateral side of the pressure applying gear (55), and rack board (56) and gear (55) of exerting pressure mesh mutually, L template (57) are located the side of rack board (56), the one end of L template (57) and the side lateral wall fixed connection of rack board (56), and the other end of L template (57) and the side lateral wall sliding connection of riser (52), exert pressure board (58) and be located two pressure board (331) directly over, and the bottom fixed connection of the top of exerting pressure board (58) and rack board (56), joint piece (510) is installed to the bottom of exerting pressure board (58).