Positioning tool for circuit board drilling

Abstract

The utility model provides a positioning tool for drilling a circuit board, which relates to the field of circuit board processing, and is characterized in that a clamping assembly is connected to the inner side of a guide seat mechanism in a sliding manner through a guide block assembly fixedly connected to the outer side surface of the clamping assembly. The problems that in the prior art, a circuit board is mostly clamped and positioned through driving of a clamping part at a fixed position in the positioning process, however, due to the fact that the positions, needing to be clamped and positioned, of the circuit board are different, a positioning tool is difficult to rapidly coordinate and use, and limitation exists are solved through the structure of a workbench, a support assembly, a vacuum pump and a suction hole. Compared with the prior art in which the circuit board is positioned purely by means of a clamping part at a fixed position, the circuit board can be quickly and preliminarily positioned in the adsorption fixing mode, the adsorption fixing mode is not excessively limited by the shape and the size of the circuit board, the positioning convenience and universality are improved, and the positioning efficiency is improved. And a good foundation is laid for subsequent accurate clamping and positioning.

Description

Technical Field

[0001] This utility model belongs to the field of circuit board processing, and specifically relates to a positioning fixture for drilling circuit boards. Background Technology

[0002] Currently, drilling is a crucial process in the manufacturing of printed circuit boards (PCBs). Precise drilling positioning plays a decisive role in the electrical performance, component mounting, and overall quality of the PCB. Traditional PCB drilling positioning methods, such as relying on simple manual comparison or using basic positioning molds, have many shortcomings, thus requiring the use of appropriate positioning fixtures.

[0003] However, existing positioning fixtures mostly use a fixed-position clamping part to clamp and position the circuit board. Since the required clamping and positioning positions of the circuit boards are different, the positioning fixtures are difficult to coordinate quickly and have limitations.

[0004] Therefore, in view of the shortcomings of the above-mentioned solutions in actual production and implementation, modifications and improvements have been made. At the same time, in the spirit and concept of seeking excellence, and with the assistance of professional knowledge and experience, and after much ingenuity and experimentation, this utility model was created. It provides a positioning fixture for drilling circuit boards, which solves the problem that existing positioning fixtures, when used, mostly rely on a fixed-position clamping part to achieve the clamping and positioning of circuit boards. However, since the required clamping and positioning positions of circuit boards are different, the positioning fixture is difficult to use quickly and coordinately, which has limitations. Utility Model Content

[0005] This utility model proposes a positioning fixture for drilling circuit boards, which solves the problem that existing positioning fixtures mostly use a fixed-position clamping part to achieve positioning of the circuit board. However, since the required clamping and positioning positions of the circuit board are different, the positioning fixture is difficult to coordinate quickly and has limitations.

[0006] The technical solution of this utility model is implemented as follows: a positioning fixture for drilling circuit boards includes: a worktable, the main body of which is a rectangular plate structure, a guide seat mechanism installed at the top of the worktable, and a guide ring assembly fixedly connected to the bottom end face of the guide seat mechanism.

[0007] The main body of the guide ring assembly is a ring structure. The diameter of the guide ring assembly is smaller than the diameter of the guide seat mechanism. Guide tooth assemblies are fixedly connected in a ring array on the outer side of the guide seat mechanism, and guide rail mechanisms are fixedly connected on the inner side of the guide seat mechanism. There are four guide rail mechanisms, and these four guide seat mechanisms are fixedly connected in a ring array at four positions on the inner side of the guide seat mechanism, not evenly spaced. A sliding groove is formed on the inner side of the guide seat mechanism, and a servo push rod is fixedly connected inside the groove. A clamping assembly is installed on the output end of the servo push rod. Two protruding guide block assemblies are fixedly connected to the outer side of the clamping assembly. The clamping assembly is slidably connected to the inner position of the guide seat mechanism through the guide block assemblies fixedly connected to its outer surface. An arc-shaped chuck assembly is fixedly connected to the side of the clamping assembly away from the guide rail mechanism.

[0008] In a preferred embodiment, a support assembly is fixedly connected to the bottom surface of the workbench, and the support assembly and the workbench together form a support structure.

[0009] In a preferred embodiment, a vacuum pump is fixedly connected to the bottom surface of the workbench, and a suction hole is provided on the top surface of the workbench, which is connected to the vacuum pump.

[0010] In a preferred embodiment, the top surface of the worktable is provided with an annular guide groove, which matches the guide ring assembly fixedly connected to the bottom surface of the guide seat mechanism. The drive gear meshes with the guide gear assembly fixedly connected to the outer circumferential surface of the guide seat mechanism for transmission.

[0011] In a preferred embodiment, a mounting plate is fixedly connected to the outer side of the workbench. There are two mounting plates, which are fixedly connected to the left and right sides of the workbench, respectively.

[0012] In a preferred embodiment, servo motors are mounted on the bottom surfaces of the two mounting plates, and drive gears are mounted on the top output shafts of the servo motors.

[0013] After using the above technical solution, the beneficial effects of this utility model are:

[0014] 1. In this utility model, by adopting a structure of workbench, support assembly, vacuum pump and suction hole, the initial adsorption and fixation function of circuit board is realized. Compared with the existing technology that simply relies on fixed position clamping part for positioning, this adsorption and fixation method can quickly perform initial positioning of circuit board, and is not subject to too many restrictions on the shape and size of circuit board, improving the convenience and versatility of positioning, and laying a good foundation for subsequent precise clamping and positioning.

[0015] 2. In this utility model, by adopting a structural combination of a worktable, guide seat mechanism, guide ring assembly, guide groove, servo motor, drive gear and guide gear assembly, the flexible adjustment function of the angle and position of the guide seat mechanism is realized. Compared with the traditional fixed position positioning fixture, this structure can quickly adjust the guide seat mechanism according to the actual situation of the circuit board, so that the clamping assembly can reach the position required for clamping and positioning of the circuit board. This solves the problem that positioning fixtures are difficult to use quickly and coordinately, and greatly improves the adaptability of positioning fixtures to different circuit boards. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the disassembled front side view of the positioning fixture of this utility model;

[0018] Figure 2 This is a front view structural diagram of the positioning tooling of this utility model;

[0019] Figure 3 This is a schematic diagram of the combined structure of the guide seat mechanism and guide rail mechanism of the positioning fixture of this utility model;

[0020] Figure 4 This is a schematic diagram of the left side of the positioning fixture of this utility model;

[0021] Figure 5 This is a top view of the positioning fixture of this utility model.

[0022] Figure 6 This is a schematic diagram of the combined structure of the worktable and support assembly of the positioning fixture of this utility model;

[0023] In the diagram, 1 is the worktable; 101 is the support assembly; 1011 is the vacuum pump; 1012 is the suction hole; 1013 is the guide groove; 1014 is the mounting plate; 1015 is the servo motor; 1016 is the drive gear; 2 is the guide seat mechanism; 201 is the guide ring assembly; 2011 is the guide gear assembly; 3 is the guide rail mechanism; 301 is the servo push rod; 3011 is the clamping assembly; 3012 is the guide block assembly; and 3013 is the chuck assembly. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] like Figures 1-6 As shown, a positioning fixture for drilling circuit boards includes: a worktable 1, the main body of the worktable 1 is a rectangular plate structure, a guide seat mechanism 2 is installed on the top of the worktable 1, and a guide ring assembly 201 is fixedly connected to the bottom end surface of the guide seat mechanism 2.

[0026] The main body of the guide ring assembly 201 is a ring structure. The diameter of the guide ring assembly 201 is smaller than the diameter of the guide seat mechanism 2. The outer side of the guide seat mechanism 2 is fixedly connected to the guide tooth assembly 2011 in a ring array. The inner side of the guide seat mechanism 2 is fixedly connected to the guide rail mechanism 3. There are four guide rail mechanisms 3 in total. The four guide rail mechanisms 3 are fixedly connected to the four positions inside the guide seat mechanism 2 in a ring array. They are not evenly distributed. The inner side of the guide rail mechanism 3 is provided with a sliding groove. The inside of the sliding groove is fixedly connected to the servo push rod 301. The output end of the servo push rod 301 is equipped with a clamping assembly 3011. The outer side of the clamping assembly 3011 is fixedly connected to the guide block assembly 3012 with two protruding structures. The clamping assembly 3011 is slidably connected to the inner position of the guide rail mechanism 3 through the guide block assembly 3012 fixedly connected to its outer surface. The side of the clamping assembly 3011 away from the guide rail mechanism 3 is fixedly connected to the chuck assembly 3013 with an arc-shaped structure.

[0027] Among them, a support assembly 101 is fixedly connected to the bottom surface of the workbench 1. The support assembly 101 and the workbench 1 together form a support structure. A vacuum pump 1011 is fixedly connected to the bottom surface of the workbench 1. A suction hole 1012 is opened on the top surface of the workbench 1. The suction hole 1012 is connected to the vacuum pump 1011. A servo motor 1015 is installed on the bottom surface of the two mounting plates 1014. A drive gear 1016 is installed on the top output shaft of the servo motor 1015.

[0028] The top surface of the workbench 1 is provided with a ring-shaped guide groove 1013, which matches the guide ring assembly 201 fixedly connected to the bottom surface of the guide seat mechanism 2. The outer side of the workbench 1 is fixedly connected with a mounting plate 1014. There are two mounting plates 1014, which are fixedly connected to the left and right sides of the workbench 1 respectively. The drive gear 1016 meshes with the guide gear assembly 2011 fixedly connected to the outer peripheral surface of the guide seat mechanism 2.

[0029] When in use, the positioning fixture is placed in a stable working area through the support assembly 101 on the bottom surface of the worktable 1. The support assembly 101 and the worktable 1 together form a stable support structure. The power supply of the vacuum pump 1011 and the servo motor 1015 is turned on to ensure that the equipment is in a working state.

[0030] Place the circuit board on the workbench 1 and start the vacuum pump 1011. The vacuum pump 1011 generates suction through the suction hole 1012 to adsorb the circuit board onto the workbench 1, thus achieving the initial positioning and fixation of the circuit board and preventing it from moving at will in subsequent operations.

[0031] According to the required clamping and positioning position of the circuit board, the servo motor 1015 installed on the bottom surface of the mounting plate 1014 is started. The top output shaft of the servo motor 1015 drives the drive gear 1016 to rotate. Since the drive gear 1016 meshes with the guide gear assembly 2011 fixedly connected to the outer peripheral surface of the guide mechanism 2, the guide mechanism 2 will rotate around its own axis. The guide ring assembly 201 on the bottom surface of the guide mechanism 2 slides in the guide groove 1013 on the top surface of the worktable 1, providing guidance for the rotation of the guide mechanism 2, ensuring that its rotation is smooth and accurate, thereby adjusting the guide mechanism 2 to a suitable angle and position.

[0032] After adjusting the guide seat mechanism 2, the servo push rod 301 in the inner slide groove of the guide rail mechanism 3 is activated. The output end of the servo push rod 301 pushes the clamping component 3011 to slide along the slide groove of the guide rail mechanism 3. The guide block component 3012 on the outside of the clamping component 3011 slides in the guide rail mechanism 3, which plays a guiding and stabilizing role. When the clamping component 3011 moves to the appropriate position, the arc-shaped chuck component 3013 on the side away from the guide rail mechanism 3 will contact and clamp the circuit board, realizing the precise clamping and positioning of the circuit board and meeting the clamping requirements of different positions.

[0033] After the circuit board is positioned and clamped, the drilling equipment can be used to drill the circuit board. During the drilling process, the positioning fixture maintains a stable clamping of the circuit board to ensure the accuracy of the drilling position. After the drilling is completed, the servo push rod 301 is controlled to retract, so that the clamping component 3011 drives the chuck component 3013 to release the circuit board. Then the vacuum pump 1011 is turned off, and the processed circuit board can be taken out from the worktable 1.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise specified and limited, it should be noted that the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to mechanical or electrical connections, or the internal connection of two components; they can be direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances. The above are merely preferred embodiments of this utility model and are not intended to limit this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A positioning fixture for drilling circuit boards, comprising a worktable (1), the main body of the worktable (1) being a rectangular plate structure, and a guide seat mechanism (2) mounted on the top of the worktable (1), characterized in that, A guide ring assembly (201) is fixedly connected to the bottom end face of the guide seat mechanism (2). The main body of the guide ring assembly (201) is a ring structure. The diameter of the guide ring assembly (201) is smaller than the diameter of the guide seat mechanism (2). The guide tooth assembly (2011) is fixedly connected to the outer side of the guide seat mechanism (2) in a ring array. The guide rail mechanism (3) is fixedly connected to the inner side of the guide seat mechanism (2). There are four guide rail mechanisms (3). The four guide rail mechanisms (3) are fixedly connected to the four positions inside the guide seat mechanism (2) in a ring array. They are not evenly distributed. The inner side of the guide rail mechanism (3) is provided with a sliding groove. A servo push rod (301) is fixedly connected to the part. A clamping assembly (3011) is installed on the output end of the servo push rod (301). Two guide block assemblies (3012) with protruding structures are fixedly connected to the outer side of the clamping assembly (3011). The clamping assembly (3011) is slidably connected to the inner side of the guide rail mechanism (3) through the guide block assembly (3012) fixedly connected to its outer side. An arc-shaped chuck assembly (3013) is fixedly connected to the side of the clamping assembly (3011) away from the guide rail mechanism (3).

2. The positioning fixture for drilling holes in a circuit board according to claim 1, characterized in that, A support assembly (101) is fixedly connected to the bottom surface of the workbench (1), and the support assembly (101) and the workbench (1) together form a support structure.

3. The positioning fixture for drilling holes in a circuit board according to claim 2, characterized in that, A vacuum pump (1011) is fixedly connected to the bottom surface of the workbench (1), and a suction hole (1012) is opened on the top surface of the workbench (1), which is connected to the vacuum pump (1011).

4. The positioning fixture for drilling holes in a circuit board according to claim 1, characterized in that, The top surface of the workbench (1) is provided with a ring-shaped guide groove (1013), which matches the guide ring assembly (201) fixedly connected to the bottom surface of the guide seat mechanism (2).

5. A positioning fixture for drilling holes in a circuit board according to claim 1, characterized in that, The workbench (1) is fixedly connected to an installation plate (1014) on its outer side. There are two installation plates (1014), which are fixedly connected to the left and right sides of the workbench (1) respectively.

6. A positioning fixture for drilling holes in a circuit board according to claim 5, characterized in that, Servo motors (1015) are mounted on the bottom surfaces of the two mounting plates (1014), and drive gears (1016) are mounted on the top output shaft of the servo motors (1015).

7. A positioning fixture for drilling holes in a circuit board according to claim 6, characterized in that, The drive gear (1016) meshes with the guide gear assembly (2011) which is fixedly connected to the outer peripheral surface of the guide seat mechanism (2).

Images