PCB pressing tool

Abstract

The utility model belongs to the technical field of circuit boards, and particularly relates to a PCB press-fit tool which comprises a workbench, a lower die body is arranged on the upper surface of the workbench, and an assembly groove is formed in the upper surface of the lower die body. The PCB upper plate and the PCB lower plate are respectively provided with a plurality of upper positioning holes and a plurality of lower positioning holes which are corresponding in position, the PCB lower plate is provided with a plurality of clamping annular grooves corresponding to the plurality of lower positioning holes, and the circle centers of the clamping annular grooves coincide with the circle centers of the positioning holes; the upper end and the lower end of the connecting pin are respectively provided with an upper annular step and a lower annular step; the upper positioning hole and the clamping annular groove can be respectively clamped on the upper annular step and the lower annular step; a plurality of positioning columns are arranged in the assembling groove, and the lower positioning holes and the connecting pins can movably sleeve the positioning columns; the linear pressing mechanism is vertically arranged on the workbench, and the driving end of the linear pressing mechanism is connected with an upper die body. And the lower surface of the upper die body is provided with a plurality of pressing columns corresponding to the plurality of upper positioning holes, so that the pressing effect is better.

Description

Technical Field

[0001] The utility model belongs to the technical field of circuit boards, and in particular relates to a PCB circuit board pressing tool. Background Art

[0002] PCB circuit board is a common basic component in electronic products. It is a circuit board that prints conductive patterns or signal transmission lines on an insulating substrate through a printing process. PCB circuit board pressing tooling is a tool used to position and fix PCB circuit boards during the manufacturing process. Its function is to ensure that the position of the circuit board is accurate and stable in each manufacturing step to ensure the quality and performance of the circuit board.

[0003] The PCB circuit board positioning tool in the prior art usually needs to manually press the upper and lower plates of the PCB circuit board during use, which requires special personnel to operate. After the positioning and pressing are completed, there are problems such as poor positioning flatness and warping in the middle part, which in turn affects subsequent screw driving, gluing, testing and other processes. When operated manually, frequent clamping operations at multiple angles are troublesome, and at the same time, the manual clamping and positioning operations are limited. After the outer clamping and positioning are completed, the clamping uniformity is poor, and the comprehensive positioning effect is poor, which affects the signal transmission effect of the PCB circuit board and the use effect is poor. Utility Model Content

[0004] In order to solve the above technical problems, the utility model provides a PCB circuit board pressing tool to solve the existing manual operation, the trouble of frequent clamping operations at multiple angles, and the limited manual clamping and positioning operations. After completing the outer clamping and positioning, the clamping uniformity is poor and the comprehensive positioning effect is poor, which affects the signal transmission effect of the PCB circuit board and the problem of poor use effect.

[0005] The technical solution adopted by the utility model is as follows: a PCB circuit board pressing tool, comprising a workbench, a lower mold body is arranged on the upper surface of the workbench, and an assembly groove is opened on the upper surface of the lower mold body;

[0006] A PCB upper plate and a PCB lower plate, wherein the PCB upper plate and the PCB lower plate are respectively provided with a plurality of upper positioning holes and a plurality of lower positioning holes at corresponding positions, and the upper surface of the PCB lower plate is provided with a plurality of snap-fit ​​annular grooves corresponding to the plurality of lower positioning holes, wherein the snap-fit ​​annular grooves are located at the outer periphery of the lower positioning holes, and the center of the snap-fit ​​annular grooves coincides with the center of the positioning holes;

[0007] A connecting pin, wherein the connecting pin is in a hollow cylindrical structure, an upper annular step is provided on the outer circumferential wall of the upper end of the connecting pin corresponding to the upper positioning hole, and a lower annular step is provided on the outer circumferential wall of the lower end of the connecting pin corresponding to the clamping annular groove, the upper positioning hole can be clamped on the upper annular step, and the clamping annular groove can be clamped on the lower annular step;

[0008] A plurality of positioning posts are provided in the assembly groove corresponding to the plurality of lower positioning holes, and the lower positioning holes and the connecting pins can be movably sleeved on the positioning posts;

[0009] A linear pressing mechanism is vertically arranged on a workbench, and a driving end of the linear pressing mechanism is connected to an upper mold body; a plurality of pressing columns are arranged on the lower surface of the upper mold body corresponding to a plurality of upper positioning holes.

[0010] Further, the linear pressing mechanism includes a cylinder, a mounting plate and a guide assembly;

[0011] The guide assembly is vertically arranged on the workbench, the cylinder is vertically installed on the top of the guide assembly, the driving end of the cylinder is fixedly connected downward to the upper surface of the mounting plate, the mounting plate is vertically slidably connected to the guide assembly, and the upper mold body is fixedly installed on the bottom of the mounting plate.

[0012] Furthermore, the guide assembly includes a fixed plate and a sliding rod, and there are four sliding rods. The four sliding rods are vertically arranged at the four corners of the upper surface of the workbench, respectively. The fixed plate is fixedly sleeved on the upper ends of the four sliding rods, and the four corners of the mounting plate are vertically slidably sleeved on the four sliding rods. The cylinder is vertically fixedly installed on the upper surface of the fixed plate, and the driving end of the cylinder penetrates downward through the fixed plate and is connected to the upper surface of the mounting plate.

[0013] Furthermore, a pin header connector is vertically arranged on the upper surface of the PCB lower plate, and a matching clearance hole is opened on the PCB upper plate corresponding to the pin header connector, and the pin header connector can move upward and pass through the clearance hole.

[0014] Furthermore, a plurality of upwardly protruding limit columns are provided on the left and right sides of the upper surface of the lower mold body, and a limit groove is provided on the lower surface of the upper mold body corresponding to the limit columns, and the limit column can be vertically slidably sleeved in the limit groove.

[0015] Furthermore, a socket is fixedly connected to the lower surface of the PCB lower plate, and the socket can be vertically slidably sleeved in the assembly groove.

[0016] Beneficial effects of the utility model:

[0017] Place the PCB lower plate on the lower mold body, align the lower positioning holes on the PCB lower plate with the corresponding positioning posts and slide them onto the positioning posts, so that the PCB lower plate is preliminarily positioned on the upper surface of the lower mold body, and then corresponding to the position of each positioning post, a connecting pin is sleeved on each positioning post, and the bottom of the lower annular step at the lower end of the connecting pin is arranged opposite to the snap-on annular groove, align the upper positioning holes of the PCB upper plate with the upper end of the connecting pin, and place the PCB upper plate on the connecting pin. At this time, several upper positioning holes of the PCB upper plate are arranged opposite to the upper annular step of the connecting pin, and then, start the linear pressing mechanism to drive the pressing post at the bottom of the upper mold body to abut against the upper surface of the PCB upper plate. The upper mold body is pressed and fixed with the surface and abutted against the upper positioning hole, and continues to move downward until the lower annular step at the lower end of the connecting pin is inserted into the snap-fitting annular groove, and the upper annular step is inserted into the upper positioning hole, and the pressing and fixing of the PCB upper plate and the PCB lower plate are completed through the connecting pin. The structure is simple and the operation is convenient. The linear pressing mechanism is avoided to avoid tedious pressing operations, and the PCB upper plate, the connecting pin and the PCB lower plate are pressed and fixed at the same time through the several pressing columns at the bottom of the upper mold body, which can better control the pressing force, limit the pressing distance between the PCB upper plate and the PCB lower plate, make the pressing uniformity better, and make the pressing tighter, so that the signal transmission effect of the PCB circuit board is better. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall structure of the utility model (first viewing angle, the PCB upper plate, PCB lower plate and connecting pins are not shown in the figure);

[0019] Figure 2 It is a schematic diagram of the overall structure of the utility model (second viewing angle, the PCB upper plate, PCB lower plate and connecting pins are not shown in the figure);

[0020] Figure 3 It is a schematic diagram of the structure of the utility model in a pressed state;

[0021] Figure 4 This is a schematic diagram of the structure of the PCB upper plate, PCB lower plate and connecting pins of the utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the PCB upper plate, PCB lower plate and connecting pins after being pressed together in the utility model;

[0023] The attached drawings are marked as follows:

[0024] Workbench 1, lower mold body 2, assembly groove 21, positioning column 22, limit column 23, PCB upper plate 3, upper positioning hole 31, clearance hole 32, PCB lower plate 4, lower positioning hole 41, snap-on annular groove 42, pin connector 43, socket 44, connecting pin 5, upper annular step 51, lower annular step 52, linear pressing mechanism 6, cylinder 61, mounting plate 62, fixing plate 63, sliding rod 64, upper mold body 7, pressing column 71, limit groove 72. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] Example:

[0029] like Figure 1 to Figure 5 As shown, a PCB circuit board pressing tool comprises a workbench 1, a lower mold body 2 is arranged on the upper surface of the workbench 1, and an assembly groove 21 is opened on the upper surface of the lower mold body 2;

[0030] A PCB upper plate 3 and a PCB lower plate 4, wherein the PCB upper plate 3 and the PCB lower plate 4 are respectively provided with a plurality of upper positioning holes 31 and a plurality of lower positioning holes 41 at corresponding positions, and the upper surface of the PCB lower plate 4 is provided with a plurality of snap-fit ​​annular grooves 42 corresponding to the plurality of lower positioning holes 41, wherein the snap-fit ​​annular grooves 42 are located at the outer periphery of the lower positioning holes 41, and the center of the snap-fit ​​annular groove 42 coincides with the center of the positioning holes;

[0031] The connecting pin 5 is a hollow cylindrical structure. An upper annular step 51 is provided on the outer peripheral wall of the upper end of the connecting pin 5 corresponding to the upper positioning hole 31. A lower annular step 52 is provided on the outer peripheral wall of the lower end of the connecting pin 5 corresponding to the engaging annular groove 42. The upper positioning hole 31 can be engaged with the upper annular step 51, and the engaging annular groove 42 can be engaged with the lower annular step 52.

[0032] A plurality of positioning posts 22 are provided in the assembly groove 21 corresponding to the plurality of lower positioning holes 41, and the lower positioning holes 41 and the connecting pin 5 can be movably sleeved on the positioning posts 22;

[0033] The linear pressing mechanism 6 is vertically arranged on the workbench 1 , and the driving end of the linear pressing mechanism 6 is connected to the upper mold body 7 ; a plurality of pressing columns 71 are arranged on the lower surface of the upper mold body 7 corresponding to the plurality of upper positioning holes 31 .

[0034] In this embodiment, the upper positioning holes 31 , the lower positioning holes 41 and the positioning posts 22 are arranged in corresponding positions, and the number of the upper positioning holes 31 , the lower positioning holes 41 and the positioning posts 22 are all five.

[0035] The positions and numbers of the upper positioning holes 31 , the lower positioning holes 41 and the positioning posts 22 of different types of PCB circuit boards are different. The corresponding positioning posts 22 are set according to the positions and numbers of the upper positioning holes 31 and the lower positioning holes 41 , and there are more than two positioning posts 22 .

[0036] As a preferred solution, the linear pressing mechanism 6 includes a cylinder 61, a mounting plate 62 and a guide assembly;

[0037] The guide assembly is vertically arranged on the workbench 1, the cylinder 61 is vertically installed on the top of the guide assembly, the driving end of the cylinder 61 is fixedly connected downward to the upper surface of the mounting plate 62, the mounting plate 62 is vertically slidably connected to the guide assembly, and the upper mold body 7 is fixedly installed at the bottom of the mounting plate 62. When the PCB upper plate 3 and the PCB lower plate 4 need to be pressed together, the cylinder 61 is started to drive the mounting plate 62 to move downward along the guide assembly, and the upper mold body 7 at the bottom of the mounting plate 62 is driven to abut against the upper surface of the PCB upper plate 3 and continue to move downward until the pressing and fixing of the PCB upper plate 3 and the PCB lower plate 4 are completed. The structure is simple and the operation is convenient. The coordinated use of the cylinder 61, the mounting plate 62 and the guide assembly avoids cumbersome operations, and the pressing and fixing of the PCB upper plate 3, the connecting pin 5 and the PCB lower plate 4 are simultaneously performed by the several pressing columns 71 at the bottom of the upper mold body 7, which can better control the pressing force and the pressing distance between the PCB upper plate 3 and the PCB lower plate 4, so that the pressing uniformity is better, the pressing is tighter, and the signal transmission effect of the PCB circuit board is better. In other embodiments of the present scheme, the cylinder 61 can be replaced by an electric push rod to drive the upper mold body 7 to move vertically.

[0038] As a preferred solution, the guide assembly includes a fixed plate 63 and a slide bar 64. There are four slide bars 64, which are respectively arranged vertically at the four corners of the upper surface of the workbench 1. The fixed plate 63 is fixedly sleeved on the upper ends of the four slide bars 64. The four corners of the mounting plate 62 are vertically slidably sleeved on the four slide bars 64. The cylinder 61 is vertically fixedly installed on the upper surface of the fixed plate 63. The driving end of the cylinder 61 passes through the fixed plate 63 downward and is connected to the upper surface of the mounting plate 62. Through the coordinated use of the fixed plate 63 and the four slide bars 64, the four corners of the mounting plate 62 are slidably sleeved on the four slide bars 64, so that the mounting plate 62 has better stability when it moves vertically under the drive of the cylinder 61, and the upper mold body 7 at the bottom of the mounting plate 62 has more uniform pressing force on the PCB upper plate 3 and the PCB lower plate 4, so that the positioning effect is better.

[0039] As a preferred solution, a pin header connector 43 is vertically arranged on the upper surface of the PCB lower board 4, and a matching clearance hole 32 is opened on the PCB upper board 3 corresponding to the pin header connector 43, and the pin header connector 43 can move upward through the clearance hole 32. Through the coordinated use of the pin header connector 43 and the clearance hole 32, when the PCB upper board 3 is placed on the PCB lower board 4, the clearance hole 32 of the PCB upper board 3 can be inserted into the pin header connector 43 of the PCB lower board 4, so as to further perform positioning, double positioning, and achieve better positioning effect.

[0040] As a preferred solution, Figure 2 and Figure 3 As shown, the left and right sides of the upper surface of the lower mold body 2 are both provided with a plurality of upwardly protruding limiting posts 23, and the lower surface of the upper mold body 7 is provided with limiting grooves 72 corresponding to the limiting posts 23, and the limiting posts 23 can be vertically slidably sleeved in the limiting grooves 72. Through the coordinated use of the limiting posts 23 and the limiting grooves 72, when the linear pressing mechanism 6 drives the upper mold body 7 downward to press the PCB upper plate 3 and the PCB lower plate 4, during the movement, the limiting posts 23 on the lower mold body 2 are slidably sleeved in the limiting grooves 72 of the upper mold body 7 until the upper end of the limiting grooves 72 abuts against the inner top wall of the limiting grooves 72, thereby completing the pressing of the PCB upper plate 3 and the PCB lower plate 4, realizing multiple positioning, and the pressing distance of the PCB upper plate 3 and the PCB lower plate 4 is limited by the limiting posts 23 and the limiting grooves 72, further ensuring the uniformity of the pressing of the PCB upper plate 3 and the PCB lower plate 4.

[0041] As a preferred solution, Figure 4 and Figure 5As shown, the lower surface of the PCB lower plate 4 is fixedly connected with a socket 44, and the socket 44 can be vertically slidably sleeved in the assembly groove 21. Before pressing, the PCB lower plate 4 is first placed on the lower mold body 2, and the socket 44 at the bottom of the PCB lower plate 4 is inserted into the assembly groove 21, so that the connection groove at the bottom of the socket 44 is slidably sleeved with the limit block in the assembly groove 21, so that the PCB lower plate 4 is positioned on the lower mold body 2.

[0042] The working mode of the utility model is as follows:

[0043] When in use, the upper mold body 7 moves upward to the top of the lower mold body 2, and the PCB lower plate 4 is first placed on the lower mold body 2, and the socket 44 at the bottom of the PCB lower plate 4 is inserted into the assembly groove 21, so that the connecting groove at the bottom of the socket 44 is slidably sleeved with the limit block in the assembly groove 21, and at the same time, the lower positioning hole 41 on the PCB lower plate 4 is aligned with the corresponding positioning column 22 and slidably sleeved on the positioning column 22, so that the PCB lower plate 4 is preliminarily positioned on the upper surface of the lower mold body 2, and then corresponding to the position of each positioning column 22, a connecting pin 5 is sleeved on each positioning column 22, and the bottom of the lower annular step 52 at the lower end of the connecting pin 5 is opposite to the snap-on annular groove 42, and then the positioning of the PCB upper plate 3 is completed by inserting the clearance hole 32 of the PCB upper plate 3 into the pin connector 43 of the PCB lower plate 4, at this time, the 5 upper positioning holes 31 of the PCB upper plate 3 are arranged relative to the upper annular step 51 of the connecting pin 5, and then, the cylinder is started. The cam 62 is pressed against the top of the PCB 3 and the bottom of the PCB 3 is pressed against the top of the PCB 3 and the bottom of the PCB 3 is pressed against the top of the PCB 3.

[0044] This plan can promote technological development, improve competitiveness, stimulate innovation enthusiasm, promote scientific and technological progress, and establish technological barriers; it can improve production processes, reduce production costs, and improve product quality.

[0045] The utility model is described in detail above. The description of the specific embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A PCB circuit board pressing tool, characterized in that: include A workbench (1), wherein a lower mold body (2) is arranged on the upper surface of the workbench (1), and an assembly groove (21) is provided on the upper surface of the lower mold body (2); A PCB upper plate (3) and a PCB lower plate (4), wherein the PCB upper plate (3) and the PCB lower plate (4) are respectively provided with a plurality of upper positioning holes (31) and a plurality of lower positioning holes (41) at corresponding positions, and the upper surface of the PCB lower plate (4) is provided with a plurality of snap-fit ​​annular grooves (42) corresponding to the plurality of lower positioning holes (41), wherein the snap-fit ​​annular grooves (42) are located at the outer periphery of the lower positioning holes (41), and the center of the snap-fit ​​annular grooves (42) coincides with the center of the positioning holes; A connecting pin (5), the connecting pin (5) being of a hollow cylindrical structure, an upper annular step (51) being provided on the outer peripheral wall of the upper end of the connecting pin (5) corresponding to the upper positioning hole (31), and a lower annular step (52) being provided on the outer peripheral wall of the lower end of the connecting pin (5) corresponding to the clamping annular groove (42), the upper positioning hole (31) being able to be clamped on the upper annular step (51), and the clamping annular groove (42) being able to be clamped on the lower annular step (52); A plurality of positioning posts (22) are provided in the assembly groove (21) corresponding to the plurality of lower positioning holes (41), and the lower positioning holes (41) and the connecting pins (5) can be movably sleeved on the positioning posts (22); A linear pressing mechanism (6) is vertically arranged on a workbench (1), and a driving end of the linear pressing mechanism (6) is connected to an upper mold body (7); a plurality of pressing columns (71) are arranged on the lower surface of the upper mold body (7) corresponding to a plurality of upper positioning holes (31).

2. The PCB circuit board pressing tool according to claim 1, characterized in that: The linear pressing mechanism (6) comprises a cylinder (61), a mounting plate (62) and a guide assembly; The guide assembly is vertically arranged on the workbench (1), the cylinder (61) is vertically installed on the top of the guide assembly, the driving end of the cylinder (61) is fixedly connected downward to the upper surface of the mounting plate (62), the mounting plate (62) is vertically slidably connected to the guide assembly, and the upper mold body (7) is fixedly installed on the bottom of the mounting plate (62).

3. The PCB circuit board pressing tool according to claim 2, characterized in that: The guide assembly comprises a fixed plate (63) and a sliding rod (64), wherein four sliding rods (64) are provided, and the four sliding rods (64) are respectively vertically arranged at four corners of the upper surface of the workbench (1); the fixed plate (63) is fixedly sleeved on the upper ends of the four sliding rods (64); the four corners of the mounting plate (62) are vertically slidably sleeved on the four sliding rods (64); the cylinder (61) is vertically fixedly installed on the upper surface of the fixed plate (63); the driving end of the cylinder (61) passes downward through the fixed plate (63) and is connected to the upper surface of the mounting plate (62).

4. The PCB circuit board pressing tool according to claim 1, characterized in that: A pin header connector (43) is vertically arranged on the upper surface of the PCB lower plate (4), and a matching clearance hole (32) is opened on the PCB upper plate (3) corresponding to the pin header connector (43), and the pin header connector (43) can move upward and pass through the clearance hole (32).

5. The PCB circuit board pressing tool according to claim 1, characterized in that: A plurality of upwardly protruding limit columns (23) are provided on the left and right sides of the upper surface of the lower mold body (2), and a limit groove (72) is provided on the lower surface of the upper mold body (7) corresponding to the limit columns (23), and the limit columns (23) can be vertically slidably sleeved in the limit groove (72).

6. The PCB circuit board pressing tool according to claim 1, characterized in that: A socket (44) is fixedly connected to the lower surface of the PCB lower plate (4), and the socket (44) can be vertically slidably sleeved in the assembly groove (21).

Images