Circuit board pressing expansion and shrinkage identification device

Abstract

The utility model provides a circuit board pressing expansion and shrinkage identification device which comprises a workbench, a pressing plate is arranged over the workbench, a connecting plate is fixedly connected to the top of the workbench, a first electric push rod is fixedly connected to the side wall of the connecting plate, a mounting plate is fixedly connected to the telescopic end of the first electric push rod, and a precision measuring head is arranged on the lower end face of the mounting plate. An annular groove is formed in the bottom of the mounting plate, a protective cover is arranged in the annular groove, positioning groove holes which are symmetrically distributed are formed in the protective cover, L-shaped plates are fixedly connected to the front face and the back of the mounting plate, fixing plates which are symmetrically distributed are arranged above the workbench, positioning rods are fixedly connected to the side walls of the fixing plates, and first round holes are formed in the L-shaped plates. Second round holes which are symmetrically distributed are formed in the mounting plate, and a tension spring arranged outside the positioning rod in a sleeving mode is fixedly connected between the fixing plate and the L-shaped plate. The precision measuring head can be protected through the protective cover, the measuring effect of the precision measuring head is guaranteed, the protective cover is convenient to mount and dismount, and operation is easy and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board expansion and contraction identification, in particular to a circuit board press-fit expansion and contraction identification device. Background Art

[0002] The names of circuit boards include: circuit board, PCB board, aluminum substrate, high-frequency board, PCB, ultra-thin circuit board, ultra-thin circuit board, printed (copper etching technology) circuit board, etc. Circuit boards make circuits miniaturized and intuitive, and play an important role in the mass production of fixed circuits and the optimization of electrical appliance layout. In the manufacturing process, flexible circuit boards have become more and more densely laid out and larger in size, which makes it difficult to control the expansion and contraction of products, resulting in a decrease in the yield rate of components when assembling. Therefore, it is necessary to measure the expansion and contraction of products. However, the existing technology has the following shortcomings when used:

[0003] There is a lack of protection for the precision measuring head, and the precision measuring head is often exposed when not in use. After a long time, a certain amount of dust is likely to adhere to the surface of the precision measuring head, which may affect the subsequent expansion and contraction identification and detection of the circuit board.

[0004] Therefore, a circuit board pressing expansion and contraction identification device is urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to address the problem that there is currently a lack of protection for precision measuring heads. When not in use, the precision measuring heads are often exposed to the outside. After a long time, a certain amount of dust is easily adhered to the surface of the precision measuring heads, which may affect the subsequent expansion and contraction identification and detection of circuit boards.

[0006] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0007] A circuit board press-fit expansion and contraction identification device is provided to improve the above-mentioned problem.

[0008] The specific application is as follows:

[0009] A circuit board pressing and shrinkage identification device comprises a workbench, a pressing plate is provided just above the workbench, a connecting plate is fixedly connected to the top of the workbench, a first electric push rod is fixedly connected to the side wall of the connecting plate, a telescopic end of the first electric push rod is fixedly connected to a mounting plate, a precision measuring head is provided on the lower end surface of the mounting plate, an annular groove is provided at the bottom of the mounting plate, a protective cover is provided in the annular groove, symmetrically distributed positioning slot holes are provided on the protective cover, an L-shaped plate is fixedly connected to the front and back of the mounting plate, a symmetrically distributed fixing plate is provided above the workbench, a positioning rod is fixedly connected to the side wall of the fixing plate, a first circular hole is provided on the L-shaped plate, a symmetrically distributed second circular hole is provided on the mounting plate, and a tension spring sleeved outside the positioning rod is fixedly connected between the fixing plate and the L-shaped plate.

[0010] As a preferred technical solution of the present application, a top frame is fixedly connected to one side of the top of the workbench, a second electric push rod is fixedly connected to the top frame, and the pressure plate is fixedly connected to the telescopic end of the second electric push rod.

[0011] As a preferred technical solution of the present application, a slot is provided at the center of the top of the workbench, a placing table is provided in the slot, four through slots are provided on the workbench, and sliders are slidably connected in the through slots.

[0012] As a preferred technical solution of the present application, a fixing block is fixedly connected to the top of the sliding block, and a rubber pad is provided on the contact surface between the fixing block and the circuit board.

[0013] As a preferred technical solution of the present application, a third electric push rod is fixedly connected at the center of the bottom of the workbench, the telescopic end of the third electric push rod is fixedly connected to a connecting seat, a first connecting groove is provided at the bottom of the slider, four second connecting grooves are provided on the connecting seat and arranged in a circle, a rotating plate is provided between the first connecting groove and the second connecting groove, and the two ends of the rotating plate are respectively rotatably connected to the first connecting groove and the second connecting groove.

[0014] As a preferred technical solution of the present application, a controller is provided on the top of the workbench, and the first electric push rod, the precision measuring head, the second electric push rod and the third electric push rod are all electrically connected to the controller.

[0015] As a preferred technical solution of the present application, the positioning rod passes through the first circular hole and the second circular hole, the end of the positioning rod away from the fixed plate is placed in the positioning slot, the second circular hole is connected to the annular groove, and support columns are fixedly connected at the four corners of the bottom of the workbench.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] In the scheme of this application:

[0018] By setting the annular groove, protective cover, positioning slot hole, L-shaped plate, fixed plate, positioning rod, first circular hole, second circular hole and tension spring, when the precision measuring head has finished identifying the expansion and contraction of the circuit board, the two fixing plates are pulled away from the mounting plate, the tension spring is stretched and elongated, the positioning rod moves with the fixing plate, one end of the protective cover is placed in the annular groove, the positioning slot hole and the second circular hole are aligned, and then the two fixing plates are loosened, and the two fixing plates are driven by the tension of the tension spring to move in the direction close to the mounting plate, so that after the positioning rod passes through the second circular hole, one end of the positioning rod is placed in the positioning slot hole, thereby completing the installation of the protective cover, and protecting the precision measuring head by the protective cover, solves the problem of lack of protection for the precision measuring head in the prior art. The precision measuring head is often exposed when not in use. After a long time, a certain amount of dust is easily adhered to the surface of the precision measuring head, which may affect the subsequent expansion and contraction identification and detection of the circuit board. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall structure of a circuit board press-fit expansion and contraction identification device provided in this application.

[0020] Figure 2 This is a schematic diagram of the overall structure of a circuit board press-fit expansion and contraction identification device provided in this application.

[0021] Figure 3 This is a schematic diagram of the overall structure of a circuit board press-fit expansion and contraction identification device provided in this application.

[0022] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of part A.

[0023] Figure 5 This is a front view structural schematic diagram of a circuit board press-fit expansion and contraction identification device provided in the present application.

[0024] Figure 6 A schematic cross-sectional structure diagram of a circuit board press-fit expansion and contraction identification device provided in the present application.

[0025] Figure 7 A schematic diagram of the structure of an L-shaped plate in a circuit board press-fit expansion and contraction identification device provided in the present application.

[0026] Figure 8 A schematic diagram of the disassembled structure of a mounting plate and a protective cover in a circuit board press-fit expansion and contraction identification device provided in the present application.

[0027] Indicated in the figure:

[0028] 1. Workbench; 2. Pressing plate; 3. Connecting plate; 4. First electric push rod; 5. Mounting plate; 6. Precision measuring head; 7. Annular groove; 8. Protective cover; 9. Positioning slot hole; 10. L-shaped plate; 11. Fixing plate; 12. Positioning rod; 13. First circular hole; 14. Second circular hole; 15. Tension spring; 16. Top frame; 17. Second electric push rod; 18. Notch; 19. Placement table; 20. Through groove; 21. Sliding block; 22. Fixing block; 23. Rubber pad; 24. Third electric push rod; 25. Connecting seat; 26. First connecting groove; 27. Second connecting groove; 28. Turn plate; 29. ​​Controller; 30. Support column. DETAILED DESCRIPTION

[0029] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0030] Therefore, the following detailed description of the embodiments of the present invention is not intended to limit the scope of the present invention to be protected, but merely represents some embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0032] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0033] In the description of the present utility model, it should be noted that the orientation or position relationship indicated by the terms "upper", "lower", etc. is based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the invention product is usually placed when in use, or the orientation or position relationship commonly understood by those skilled in the art. Such terms are only for the convenience of describing the present utility model and simplifying the description, and do 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 therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0034] Example:

[0035] like Figure 1-8As shown, a circuit board pressing and shrinkage identification device proposed in this embodiment includes a workbench 1, a pressing plate 2 is arranged just above the workbench 1, and the circuit board is pressed by the pressing plate 2. A connecting plate 3 is fixedly connected to the top of the workbench 1, and a first electric push rod 4 is fixedly connected to the side wall of the connecting plate 3. The telescopic end of the first electric push rod 4 is fixedly connected to a mounting plate 5. A precision measuring head 6 is arranged on the lower end surface of the mounting plate 5. The first electric push rod 4 drives the mounting plate 5 to move, so that the precision measuring head 6 moves left and right above the circuit board to measure and analyze the expansion and contraction deformation of the circuit board. An annular groove 7 is provided at the bottom of the mounting plate 5, and a protective cover 8 is provided in the annular groove 7. The protective cover 8 is provided with a There are symmetrically distributed positioning slots 9, and the front and back of the mounting plate 5 are fixedly connected with L-shaped plates 10. A symmetrically distributed fixing plate 11 is provided above the workbench 1. The staff pulls the two fixing plates 11 away from the mounting plate 5. The side walls of the fixing plates 11 are fixedly connected with positioning rods 12. A first circular hole 13 is provided on the L-shaped plate 10, and a symmetrically distributed second circular hole 14 is provided on the mounting plate 5. A tension spring 15 sleeved on the outside of the positioning rod 12 is fixedly connected between the fixing plate 11 and the L-shaped plate 10. The tension spring 15 is stretched and elongated under force, and the positioning rod 12 moves with the fixing plate 11. When one end of the positioning rod 12 is separated from the positioning slot 9, the protective cover 8 is removed.

[0036] like Figure 1 , Figure 5 and Figure 6 As shown, a top frame 16 is fixedly connected to one side of the top of the workbench 1, and a second electric push rod 17 is fixedly connected to the top frame 16. The pressing plate 2 is fixedly connected to the telescopic end of the second electric push rod 17. The second electric push rod 17 drives the pressing plate 2 to move downward to press the circuit board. After the pressing is completed, the second electric push rod 17 drives the pressing plate 2 to move upward.

[0037] like Figure 1 and Figure 4 As shown, a slot 18 is provided at the center of the top of the workbench 1, a placement platform 19 is provided in the slot 18, four through slots 20 are provided on the workbench 1, a slider 21 is slidably connected in the through slots 20, and the circuit board is placed on the placement platform 19.

[0038] like Figure 2 As shown, a fixing block 22 is fixedly connected to the top of the slider 21, and a rubber pad 23 is provided on the contact surface between the fixing block 22 and the circuit board. The circuit board is fixed by four fixing blocks 22, and the rubber pad 23 is in contact with the circuit board to prevent the fixing block 22 from clamping the circuit board too much and causing damage to the circuit board.

[0039] like Figure 3 , Figure 4 and Figure 5As shown, a third electric push rod 24 is fixedly connected at the bottom center of the workbench 1, and a connecting seat 25 is fixedly connected to the telescopic end of the third electric push rod 24. A first connecting groove 26 is provided at the bottom of the slider 21, and four second connecting grooves 27 arranged in a circle are provided on the connecting seat 25. A rotating plate 28 is provided between the first connecting groove 26 and the second connecting groove 27, and both ends of the rotating plate 28 are rotatably connected to the first connecting groove 26 and the second connecting groove 27 respectively. When the third electric push rod 24 is started, the third electric push rod 24 extends and drives the connecting seat 25 to move downward, and the rotating plate 28 rotates, and the slider 21 is driven to slide in the through groove 20 through the rotating plate 28, so that the distance between the four sliders 21 is shortened, and the circuit board is fixed by the four fixing blocks 22.

[0040] like Figure 2 , Figure 5 and Figure 6 As shown, a controller 29 is provided on the top of the workbench 1, and the first electric push rod 4, the precision measuring head 6, the second electric push rod 17 and the third electric push rod 24 are all electrically connected to the controller 29. The first electric push rod 4 and the precision measuring head 6 are started by the controller 29, and the first electric push rod 4 drives the mounting plate 5 to move, so that the precision measuring head 6 moves left and right above the circuit board to measure and analyze the expansion and contraction deformation of the circuit board, and the measured data will be fed back to the controller 29.

[0041] like Figure 6 , Figure 7 and Figure 8 As shown, the positioning rod 12 passes through the first circular hole 13 and the second circular hole 14, and the end of the positioning rod 12 away from the fixing plate 11 is placed in the positioning slot 9, thereby completing the installation of the protective cover 8. The protective cover 8 protects the precision measuring head 6 to ensure the measuring effect of the precision measuring head 6. The second circular hole 14 is connected to the annular groove 7, and support columns 30 are fixedly connected at the four corners of the bottom of the workbench 1.

[0042] Specifically, when the circuit board pressing and shrinkage identification device is in use: the circuit board is placed on the placing table 19, and the third electric push rod 24 is started by the controller 29. The third electric push rod 24 is extended to drive the connecting seat 25 to move downward, and the rotating plate 28 rotates. The sliding block 21 is driven to slide in the through groove 20 by the rotating plate 28, so that the distance between the four sliding blocks 21 is close, and the circuit board is fixed by the four fixing blocks 22. The rubber pad 23 contacts the circuit board to prevent the fixing blocks 22 from clamping the circuit board too much and causing damage to the circuit board. Then, the second electric push rod 17 is started by the controller 29, and the second electric push rod 17 drives the pressing plate 2 to move downward to press the circuit board. After the pressing is completed, the second electric push rod 17 drives the pressing plate 2 to move upward. The staff pulls the two fixing plates 11 away from the mounting plate 5. The tension spring 15 is stretched and extended by force, and the positioning rod 12 moves with the fixing plate 11. When one end of the positioning rod 12 is separated from the positioning slot 9, the protective cover 8 is removed Then, the first electric push rod 4 and the precision measuring head 6 are started through the controller 29, and the first electric push rod 4 drives the mounting plate 5 to move, so that the precision measuring head 6 moves left and right above the circuit board to measure and analyze the expansion and contraction deformation of the circuit board. The measured data will be fed back to the controller 29. When the precision measuring head 6 completes the recognition of the expansion and contraction of the circuit board, the two fixing plates 11 are pulled away from the mounting plate 5, the tension spring 15 is stretched and elongated, and the positioning rod 12 moves with the fixing plate 11, and one end of the protective cover 8 is placed in the annular groove 7, and the positioning slot hole 9 is aligned with the second circular hole 14, and then the two fixing plates 11 are loosened, and the tension of the tension spring 15 drives the two fixing plates 11 to move in the direction close to the mounting plate 5, so that the positioning rod 12 passes through the second circular hole 14, and one end of the positioning rod 12 is placed in the positioning slot hole 9, thereby completing the installation of the protective cover 8, and the precision measuring head 6 is protected by the protective cover 8 to ensure the measurement effect of the precision measuring head 6.

[0043] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A circuit board press-fit expansion and contraction identification device, comprising a workbench (1), characterized in that: A pressing plate (2) is provided directly above the workbench (1); a connecting plate (3) is fixedly connected to the top of the workbench (1); a first electric push rod (4) is fixedly connected to the side wall of the connecting plate (3); a mounting plate (5) is fixedly connected to the telescopic end of the first electric push rod (4); a precision measuring head (6) is provided on the lower end surface of the mounting plate (5); an annular groove (7) is provided at the bottom of the mounting plate (5); a protective cover (8) is provided in the annular groove (7); and symmetrically distributed positioning holes are provided on the protective cover (8). The mounting plate (5) is provided with a slot hole (9), the front and back of the mounting plate (5) are fixedly connected with an L-shaped plate (10), a symmetrically distributed fixing plate (11) is provided above the workbench (1), a positioning rod (12) is fixedly connected to the side wall of the fixing plate (11), a first circular hole (13) is provided on the L-shaped plate (10), a symmetrically distributed second circular hole (14) is provided on the mounting plate (5), and a tension spring (15) which is sleeved outside the positioning rod (12) is fixedly connected between the fixing plate (11) and the L-shaped plate (10).

2. A circuit board press-fit expansion and contraction identification device according to claim 1, characterized in that: A top frame (16) is fixedly connected to one side of the top of the workbench (1), a second electric push rod (17) is fixedly connected to the top frame (16), and the pressing plate (2) is fixedly connected to the telescopic end of the second electric push rod (17).

3. A circuit board press-fit expansion and contraction identification device according to claim 2, characterized in that: A notch (18) is provided at the center of the top of the workbench (1), a placement platform (19) is provided in the notch (18), four through slots (20) are provided on the workbench (1), and a slider (21) is slidably connected in the through slots (20).

4. A circuit board press-fit expansion and contraction identification device according to claim 3, characterized in that: A fixing block (22) is fixedly connected to the top of the sliding block (21), and a rubber pad (23) is provided on the contact surface between the fixing block (22) and the circuit board.

5. A circuit board press-fit expansion and contraction identification device according to claim 4, characterized in that: A third electric push rod (24) is fixedly connected at the center of the bottom of the workbench (1); a telescopic end of the third electric push rod (24) is fixedly connected to a connecting seat (25); a first connecting groove (26) is provided at the bottom of the slider (21); four second connecting grooves (27) arranged in a circumference are provided on the connecting seat (25); a rotating plate (28) is provided between the first connecting groove (26) and the second connecting groove (27); two ends of the rotating plate (28) are rotatably connected to the first connecting groove (26) and the second connecting groove (27), respectively.

6. A circuit board press-fit expansion and contraction identification device according to claim 5, characterized in that: A controller (29) is provided on the top of the workbench (1), and the first electric push rod (4), the precision measuring head (6), the second electric push rod (17) and the third electric push rod (24) are all electrically connected to the controller (29).

7. A circuit board press-fit expansion and contraction identification device according to claim 6, characterized in that: The positioning rod (12) passes through the first circular hole (13) and the second circular hole (14); one end of the positioning rod (12) away from the fixing plate (11) is placed in the positioning slot (9); the second circular hole (14) is connected to the annular slot (7); and support columns (30) are fixedly connected at the four corners of the bottom of the workbench (1).

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