Positioning tool for PCBA board processing

Abstract

The utility model discloses a positioning tool for PCBA (printed circuit board assembly) processing, which comprises a bottom plate, a controller is mounted at the front end of the bottom plate, and a carrying table is mounted at the top end of the bottom plate. Through the arrangement of the movable plate, the linear sliding rail, the cushion block, the cross rod, the rubber strip, the pull rod, the connecting plate, the electric push rod and the fixed shaft, rapid positioning of the PCBA board is achieved, the photoelectric sensor can monitor the top end of the carrying table, when the PCBA board is placed on the carrying table, the PCBA board can cover the photoelectric sensor, and the PCBA board can be accurately positioned. A photoelectric sensor can send sensing information to a controller, a system program in the controller can control an electric push rod to operate according to a control instruction, the electric push rod can stretch out and draw back to control movable plates to move horizontally in the direction of a linear sliding rail, and the two sets of movable plates are driven to move towards the center in cooperation with connection of a pull rod and a connecting plate. The rubber strips are indirectly controlled to clamp and position the two sides of the PCBA board, the machining efficiency of the positioning tool is improved, and therefore the positioning tool has the rapid positioning function.

Description

Technical Field

[0001] The utility model relates to the technical field of PCBA board positioning tooling, in particular to a positioning tooling for PCBA board processing. Background Art

[0002] PCBA board is the abbreviation of Printed Circuit Board Assembly, which refers to a circuit board in which electronic components are welded to a printed circuit board through a certain process. In the processing of PCBA board, a positioning tool plate is usually used for fixing, and then the electronic components are plugged and welded on the plate. When the plate is positioned, the positioning state of the tool needs to be manually adjusted. After the processing is completed, the positioning state of the tool on the plate also needs to be manually released. The operation steps are cumbersome, time-consuming and labor-intensive, and the use is not flexible enough, which affects the processing efficiency. Therefore, a positioning tool for PCBA board processing is provided. Utility Model Content

[0003] The utility model aims to provide a positioning tool for PCBA board processing to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a positioning tool for PCBA board processing, comprising a base plate, a controller is installed at the front end of the base plate, a carrier is installed at the top of the base plate, and movable plates are installed on both sides of the bottom end of the carrier, linear slide rails are installed between the two groups of movable plates and the carrier, pads are installed at the tops of the two groups of movable plates, and cross bars are installed at the bottom ends of the pads, a rubber strip is installed on one side of the cross bar, an electric push rod is installed at the bottom end of the carrier, and a fixed connection is formed between the electric push rod and one group of movable plates, a fixed shaft is installed at the center position of the bottom end of the carrier, and a connecting plate is installed at the bottom end of the fixed shaft, pull rods are installed on both sides of the connecting plate, and the two groups of pull rods are respectively hingedly connected to the two groups of movable plates, and a photoelectric sensor is inlaid on the top of the carrier.

[0005] Preferably, the two groups of movable plates are centrally symmetrically distributed at the bottom end of the carrier, and two groups of linear slide rails are provided, and the linear slide rails are symmetrically distributed at the top end of the movable plates.

[0006] Preferably, an infrared transmitter and an infrared receiver are provided at the top of the carrier, and the infrared transmitter and the infrared receiver are respectively installed at the tops of the cross bars on both sides.

[0007] Preferably, the infrared transmitter and the infrared receiver are arranged on the same straight line, and the infrared transmitter, the infrared receiver and the photoelectric sensor are all electrically connected to the controller through wires.

[0008] Preferably, a rectangular tube is installed at the edge of the top of the carrier, and an air source nozzle is provided at the rear end of the rectangular tube.

[0009] Preferably, the front end of the rectangular tube is provided with through holes, and the through holes are provided in a plurality of groups, and the through holes are evenly distributed on the rectangular tube.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] (1) By providing a movable plate, a linear slide, a cushion block, a cross bar, a rubber strip, a pull rod, a connecting plate, an electric push rod and a fixed shaft, the PCBA board can be quickly positioned. The photoelectric sensor can monitor the top of the carrier. When the PCBA board is placed on the carrier, it will cover the photoelectric sensor. The photoelectric sensor will send the sensing information to the controller. The system program inside the controller will control the electric push rod to operate according to the control instructions below. The extension and retraction of the electric push rod will control the movable plate to translate along the direction of the linear slide. In conjunction with the connection of the pull rod and the connecting plate, the two sets of movable plates are driven to move toward the center, and the rubber strip is indirectly controlled to clamp and position the two sides of the PCBA board, thereby improving the processing efficiency of the positioning tooling, so that the positioning tooling has a rapid positioning function;

[0012] (2) By providing an infrared transmitter, an infrared receiver and a controller, PCBA boards of different sizes can be precisely clamped. The controller can set the parameters of the positioning width and measure the clamping distance in real time in conjunction with the distribution of the infrared transmitter and the infrared receiver. When the rubber strip moves to a suitable distance, the infrared transmitter and the infrared receiver will send the monitoring data to the controller. The system program inside the controller will control the electric push rod to stop operating according to the control instructions below, so as to precisely clamp PCBA boards of different sizes and prevent the PCBA boards from being clamped, thereby improving the flexibility of use;

[0013] (3) By providing a rectangular tube, a through hole and an air source nozzle, dust cleaning is achieved. The air source nozzle can be connected to an air pump. When the air pump operates, the air inside the rectangular tube is sucked away, so that the inside of the rectangular tube is in a negative pressure state. With the distribution of the through holes, the air at the top of the carrier is sucked into the inside of the rectangular tube, and the airflow is used to suck dust and debris into the inside of the rectangular tube, so that the dust on the surface of the carrier and the PCBA board is cleaned, so that the positioning tooling has a dust removal function. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a front view structural schematic diagram of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the platform of the utility model when viewed from above;

[0017] Figure 3 It is a schematic diagram of the top view structure of the utility model;

[0018] Figure 4 It is a schematic diagram of the side view structure of the carrier of the utility model.

[0019] Description of reference numerals in the figures:

[0020] 1. Bottom plate; 2. Movable plate; 3. Carrier; 4. Linear guide rail; 5. Cushion block; 6. Cross bar; 7. Infrared transmitter; 8. Rectangular tube; 9. Through hole; 10. Rubber strip; 11. Infrared receiver; 12. Controller; 13. Pull rod; 14. Connecting plate; 15. Electric push rod; 16. Fixed shaft; 17. Air source nozzle; 18. Photoelectric sensor. DETAILED DESCRIPTION

[0021] In order 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 clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] See also Figure 1-4The utility model provides an embodiment: a positioning tool for PCBA board processing, including a bottom plate 1, a controller 12 is installed at the front end of the bottom plate 1, a carrier 3 is installed at the top of the bottom plate 1, and movable plates 2 are installed on both sides of the bottom end of the carrier 3, linear slide rails 4 are installed between the two groups of movable plates 2 and the carrier 3, cushion blocks 5 are installed at the top of the two groups of movable plates 2, and a cross bar 6 is installed at the bottom end of the cushion blocks 5, a rubber strip 10 is installed on one side of the cross bar 6, an electric push rod 15 is installed at the bottom end of the carrier 3, and the electric push rod 15 and one of the groups of movable plates 2 are connected. A fixed connection is formed between them, a fixed shaft 16 is installed at the center position of the bottom end of the carrier 3, and a connecting plate 14 is installed at the bottom end of the fixed shaft 16, and pull rods 13 are installed on both sides of the connecting plate 14, and the two groups of pull rods 13 are respectively hingedly connected with the two groups of movable plates 2, and a photoelectric sensor 18 is embedded at the top of the carrier 3. The two groups of movable plates 2 are centrally symmetrically distributed at the bottom end of the carrier 3, and two groups of linear slide rails 4 are provided, and the linear slide rails 4 are symmetrically distributed at the top end of the movable plates 2, so as to facilitate the control of the two groups of movable plates 2 to move smoothly at the bottom end of the carrier 3;

[0024] Specifically, as shown in the figure, when in use, the top of the carrier 3 can be monitored by the photoelectric sensor 18. When the PCBA board is placed on the carrier 3, it will cover the photoelectric sensor 18, and the photoelectric sensor 18 will send the sensing information to the controller 12. The system program inside the controller 12 will control the electric push rod 15 to operate according to the control instructions below. The extension and retraction of the electric push rod 15 will control the movable plate 2 to move along the direction of the linear slide rail 4, and cooperate with the connection of the pull rod 13 and the connecting plate 14 to drive the two groups of movable plates 2 to move toward the center, and indirectly control the rubber strip 10 to clamp and position the two sides of the PCBA board;

[0025] An infrared transmitter 7 and an infrared receiver 11 are provided at the top of the carrier 3, and the infrared transmitter 7 and the infrared receiver 11 are respectively installed at the tops of the cross bars 6 on both sides, and the infrared transmitter 7 and the infrared receiver 11 are arranged on the same straight line. The infrared transmitter 7, the infrared receiver 11 and the photoelectric sensor 18 are electrically connected to the controller 12 through wires. The operation of the infrared transmitter 7 and the infrared receiver 11 can measure the clamping distance in real time, and can accurately clamp PCBA boards of different sizes to prevent the PCBA boards from being clamped;

[0026] Specifically, as shown in the figure, when in use, the parameters of the positioning width can be set through the controller 12, the infrared transmitter 7 and the infrared receiver 11 will send the monitoring data to the controller 12, control the two sets of cross bars 6 to move to the appropriate position, and the system program inside the controller 12 will control the electric push rod 15 to stop operating according to the control instructions below;

[0027] A rectangular tube 8 is installed at the edge of the top of the carrier 3, and a gas source nozzle 17 is provided at the rear end of the rectangular tube 8, and a through hole 9 is provided at the front end of the rectangular tube 8. The through holes 9 are provided in several groups, and the through holes 9 are evenly distributed on the rectangular tube 8;

[0028] Specifically, as shown in the figure, when in use, the air pump is used to suck out the air inside the rectangular tube 8, so that the interior of the rectangular tube 8 is in a negative pressure state, and the air at the top of the carrier 3 is sucked into the interior of the rectangular tube 8 by the distribution of the through holes 9, and the dust and debris are sucked into the interior of the rectangular tube 8 by the airflow.

[0029] Working principle: When in use, first, move the positioning tooling for PCBA board processing to the target area, and connect the air pump to the air source nozzle 17, set the controller 12 according to the parameters of the PCBA board to be processed, and take the PCBA board, place the PCBA board at the center of the top of the carrier 3, and cover it on the photoelectric sensor 18. The photoelectric sensor 18 will send the sensing information to the controller 12, and the system program inside the controller 12 will control the electric push rod 15 to operate according to the control instructions below. The extension and retraction of the electric push rod 15 will control the movable plate 2 to translate along the direction of the linear slide rail 4, and cooperate with the connection of the pull rod 13 and the connecting plate 14 to drive the two groups of movable plates 2 to move toward the center, and indirectly control the rubber strip 10 to clamp and position the two sides of the PCBA board. The external transmitter 7 and the infrared receiver 11 will send the monitoring data to the controller 12 to control the two groups of cross bars 6 to move to the appropriate position. The system program inside the controller 12 will control the electric push rod 15 to stop working according to the control instructions below. The air pump will perform the vacuum operation to extract the air inside the rectangular tube 8, so that the inside of the rectangular tube 8 is in a negative pressure state, and the air at the top of the carrier 3 is sucked into the inside of the rectangular tube 8. The airflow is used to suck dust and debris into the inside of the rectangular tube 8, and the dust on the surface of the carrier 3 and the PCBA board is cleaned. Then, when the processing is completed, the controller 12 is operated to control the electric push rod 15 to extend, push the two groups of movable plates 2 to move outward, release the clamping state of the PCBA board, and then take the PCBA board away, finally completing the use of the positioning tooling for PCBA board processing.

[0030] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A positioning tool for PCBA board processing, comprising a base plate (1), characterized in that: A controller (12) is installed at the front end of the base plate (1), a carrier (3) is installed at the top end of the base plate (1), and movable plates (2) are installed on both sides of the bottom end of the carrier (3), linear slide rails (4) are installed between the two groups of movable plates (2) and the carrier (3), cushion blocks (5) are installed at the top ends of the two groups of movable plates (2), and a cross bar (6) is installed at the bottom ends of the cushion blocks (5), a rubber strip (10) is installed on one side of the cross bar (6), and the bottom end of the carrier (3) is provided with a plurality of movable plates (2). An electric push rod (15) is installed, and a fixed connection is formed between the electric push rod (15) and one group of movable plates (2). A fixed shaft (16) is installed at the center position of the bottom end of the carrier (3), and a connecting plate (14) is installed at the bottom end of the fixed shaft (16). Pull rods (13) are installed on both sides of the connecting plate (14), and the two groups of pull rods (13) are respectively hingedly connected to the two groups of movable plates (2). A photoelectric sensor (18) is embedded at the top of the carrier (3).

2. A positioning tool for PCBA board processing according to claim 1, characterized in that: The two groups of movable plates (2) are centrally symmetrically distributed at the bottom end of the carrier (3); two groups of linear slide rails (4) are provided, and the linear slide rails (4) are symmetrically distributed at the top end of the movable plates (2).

3. The positioning tool for PCBA board processing according to claim 1, characterized in that: An infrared transmitter (7) and an infrared receiver (11) are arranged at the top of the carrier (3), and the infrared transmitter (7) and the infrared receiver (11) are respectively installed at the tops of the cross bars (6) on both sides.

4. A positioning tool for PCBA board processing according to claim 3, characterized in that: The infrared transmitter (7) and the infrared receiver (11) are arranged on the same straight line, and the infrared transmitter (7), the infrared receiver (11) and the photoelectric sensor (18) are all electrically connected to the controller (12) via wires.

5. The positioning tool for PCBA board processing according to claim 1, characterized in that: A rectangular tube (8) is installed at the edge of the top end of the carrier (3), and an air source nozzle (17) is arranged at the rear end of the rectangular tube (8).

6. A positioning tool for PCBA board processing according to claim 5, characterized in that: The front end of the rectangular tube (8) is provided with through holes (9), and the through holes (9) are provided in a plurality of groups, and the through holes (9) are evenly distributed on the rectangular tube (8).

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