PIN withdrawing device of automatic PCB rubber tapping machine

Abstract

The utility model belongs to the technical field of PCB (printed circuit board) processing equipment, and particularly relates to a PIN withdrawing device of an automatic PCB rubber tapping machine, which comprises a PIN withdrawing mechanism, a turn-over mechanism, a detection mechanism and a control system. The PIN retreating mechanism comprises a PIN retreating support, a PIN retreating air cylinder and a PIN retreating ejector pin. The turn-over mechanism comprises a turn-over driving assembly and a turn-over rotating assembly. The detection mechanism comprises a detection fixing seat and a photoelectric sensor. According to the PIN withdrawing device of the automatic PCB rubber tapping machine, PIN withdrawing operation can be carried out on PINs at different positions on a PCB at the same time; the turn-over mechanism can be used for accurately performing turn-over operation on the PCB; the detection mechanism detects the PIN withdrawing result in real time through the photoelectric sensor, so that the problems, such as unsuccessful PIN withdrawing and the like, occurring in the PIN withdrawing process can be found in time, unqualified PCBs are prevented from flowing into subsequent processes, and the product quality is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to PCB processing equipment technical field especially relates to a kind of PIN device of automatic PCB rubber cutting machine. BACKGROUND

[0002] In the production process of PCB (printed circuit board), in order to ensure the position accuracy and stability of PCB board in the processing process, PIN is often used to fix PCB board on specific fixture or backing plate. After completing specific processing procedure, these PINs need to be withdrawn from PCB board in order to carry out subsequent rubber cutting and other processing steps. Traditional PIN withdrawal operation is mostly completed by manual, not only inefficient, but also due to the difference of manual operation, PIN needle may not be completely withdrawn or PCB board may be damaged during PIN withdrawal process, which seriously affects product quality and production efficiency. In addition, in some processes that require processing on both sides of PCB board, PCB board needs to be turned over, and the existing turning over method also has problems such as low efficiency and easy damage to PCB board. Moreover, in PIN withdrawal process, there is no effective detection means to monitor whether PIN withdrawal is successful in real time, which may lead to PCB board with unsuccessful PIN withdrawal flowing into subsequent process, further affecting product quality. Therefore, it is of great significance to develop a PIN withdrawal device with high efficiency, accuracy and automatic PIN withdrawal result detection for PCB production industry. SUMMARY

[0003] The utility model aims at providing PIN device of automatic PCB rubber cutting machine, aiming at solving the technical problems that PIN needle may not be completely withdrawn or PCB board may be damaged during PIN withdrawal process in prior art, which seriously affects product quality and production efficiency.

[0004] To achieve the above-mentioned purpose, the PIN device of automatic PCB rubber cutting machine provided by the utility model embodiment comprises PIN withdrawal mechanism, turning over mechanism, detection mechanism and control system, the PIN withdrawal mechanism is arranged on one side of the detection mechanism, the turning over mechanism is arranged on one side of the PIN withdrawal mechanism and the detection mechanism;

[0005] The PIN withdrawal mechanism comprises PIN withdrawal support, PIN withdrawal cylinder and PIN withdrawal thimble, the PIN withdrawal cylinder is connected to the PIN withdrawal support, the PIN withdrawal thimble is connected to the PIN withdrawal cylinder, and the PIN withdrawal cylinder drives the PIN withdrawal thimble to move up and down;

[0006] The turning over mechanism comprises turning over driving assembly and turning over rotating assembly, and the turning over rotating assembly is connected to the turning over driving assembly.

[0007] The detection mechanism includes a detection fixing seat and a photoelectric sensor, the detection fixing seat is connected to the PIN withdrawing support, a PIN withdrawing hole is arranged in the middle of the detection fixing seat, the photoelectric sensor is arranged in the PIN withdrawing hole and connected with the detection fixing seat; the PIN withdrawing cylinder, the surface turning driving assembly, the surface turning rotating assembly and the photoelectric sensor are electrically connected with the control system.

[0008] As an optional scheme of the utility model, the PIN withdrawing mechanism is provided with two, and is arranged in parallel and at intervals.

[0009] As an optional scheme of the utility model, the PIN withdrawing hole is arranged below the PIN withdrawing thimble and is arranged in coincidence with the PIN withdrawing thimble in the vertical direction, and the diameter of the PIN withdrawing thimble is smaller than the PIN withdrawing hole.

[0010] As an optional scheme of the utility model, the surface turning mechanism is provided with two, and is arranged in parallel and at intervals.

[0011] As an optional scheme of the utility model, the surface turning driving assembly includes a surface turning support, a surface turning motor, a surface turning pulley, a surface turning belt, a surface turning slide rail, a surface turning slide block and a surface turning slide seat, the surface turning motor is fixedly connected to the surface turning support, the surface turning pulley is fixedly connected to the surface turning motor, the surface turning belt is fixedly arranged around the surface turning pulley, the surface turning slide rail is fixedly connected to the surface turning support, the surface turning slide block is slidingly connected to the surface turning slide rail and fixedly connected with the surface turning belt, and the surface turning slide seat is fixedly connected to the surface turning slide block.

[0012] As an optional scheme of the utility model, a moving adjusting assembly is connected to the surface turning support, the moving adjusting assembly includes a moving slide block, a moving slide rail and a bottom plate, the moving slide block is slidingly connected to the moving slide rail, and the moving slide rail is fixedly connected to the bottom plate; limit holes are arranged on the moving slide block and the moving slide rail; the surface turning support is fixedly connected to the moving slide block and moves horizontally along the moving slide rail through the moving slide block.

[0013] As an optional scheme of the utility model, the surface turning rotating assembly includes a turnover motor and a clamping cylinder, the turnover motor is fixedly connected in the surface turning slide seat and fixedly connected with the clamping cylinder.

[0014] As an optional scheme of the utility model, the detection mechanism and the PIN withdrawing mechanism are both two in number, and one detection mechanism is arranged on one PIN withdrawing mechanism.

[0015] The automatic PCB rubber cutting machine's PIN withdrawing device provided by the utility model embodiment has one or more of the above technical solutions at least one of the following technical effects:

[0016] 1、 by setting two parallel, interval, can be simultaneously on the PCB different location PIN needle PIN operation, greatly improving the efficiency of PIN;

[0017] 2, the turnover mechanism through the turnover drive assembly and turnover rotating assembly work together, can accurately on the PCB turnover operation, meet the needs of both sides of the PCB processing, and in the turnover process, through the clamping cylinder clamping PCB, with the fine adjustment function of the mobile adjustment assembly, can effectively avoid damage to the PCB;

[0018] 3, detection mechanism through the photoelectric sensor real-time detection of PIN results, can timely detect PIN problems in the process, such as PIN needle is not successful exit, avoid the unqualified PCB into the subsequent process, improve product quality. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the embodiment of the present application, the following will be used to introduce the drawings needed in the embodiment or prior art description, obviously, the drawings in the following description only some embodiments of the present application, for those skilled in the art, without creative labor, can also obtain other drawings according to these drawings.

[0020] Figure 1 The automatic PCB cutting rubber machine of the embodiment of the present application provides a perspective view of the PIN device.

[0021] Figure 2 The automatic PCB cutting rubber machine of the embodiment of the present application provides a perspective view of the PIN device.

[0022] Figure 3 For Figure 2 The local enlarged view of A in the middle.

[0023] In the figure, the reference signs are:

[0024] 1, PIN mechanism; 2, turnover mechanism; 3, detection mechanism;

[0025] 11, PIN support; 12, PIN cylinder; 13, PIN needle;

[0026] 21, turnover drive assembly; 22, turnover rotating assembly; 23, mobile adjustment assembly;

[0027] 31, detection fixed seat;

[0028] 211, turn over support; 212, turn over motor; 213, turn over pulley; 214, turn over belt; 215, turn over slide rail; 216, turn over sliding block; 217, turn over sliding seat;

[0029] 221, clamping cylinder;

[0030] 231, moving sliding block; 232, moving slide rail; 233, bottom plate. DETAILED DESCRIPTION

[0031] The embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the embodiments of the present application, and cannot be understood as limiting the present application.

[0032] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0033] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0034] In the embodiments of the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0035] In one embodiment of the present application, as shown in Figures 1 to 3As shown, the automatic PCB glue cutting machine PIN withdrawing device is provided, including PIN withdrawing mechanism 1, turning mechanism 2, detection mechanism 3 and control system, PIN withdrawing mechanism 1 is arranged on one side of detection mechanism 3, turning mechanism 2 is arranged on one side of PIN withdrawing mechanism 1 and detection mechanism 3. PIN withdrawing mechanism 1 includes PIN withdrawing support 11, PIN withdrawing cylinder 12 and PIN withdrawing thimble 13, PIN withdrawing cylinder 12 is connected to PIN withdrawing support 11, PIN withdrawing thimble 13 is connected to PIN withdrawing cylinder 12, PIN withdrawing cylinder 12 drives PIN withdrawing thimble 13 to move up and down. Turning mechanism 2 includes turning drive assembly 21 and turning rotation assembly 22, turning rotation assembly 22 is connected to turning drive assembly 21. Detection mechanism 3 includes detection fixed seat 31 and photoelectric sensor, detection fixed seat 31 is connected to PIN withdrawing support 11, detection fixed seat 31 is provided with PIN withdrawing hole in the middle, photoelectric sensor is arranged in PIN withdrawing hole and connected with detection fixed seat 31; PIN withdrawing cylinder 12, turning drive assembly 21, turning rotation assembly 22 and photoelectric sensor are electrically connected with the control system.

[0036] The working process of PIN withdrawing mechanism 1 is as follows:

[0037] The PCB board with PIN needle is placed on detection fixed seat 31, and the PIN needle on the PCB board is aligned with PIN withdrawing hole in the middle of detection fixed seat 31 and PIN withdrawing thimble 13 in the vertical direction. At this time, PIN withdrawing cylinder 12 is in the initial state, PIN withdrawing thimble 13 is located at the lower position and does not contact with the PCB board; photoelectric sensor normally works with power supply, continuously emits and receives light signal. PIN withdrawing cylinder 12 starts to work, the piston in it moves upward under the action of gas pressure or hydraulic pressure, drives PIN withdrawing thimble 13 connected with it to descend synchronously. PIN withdrawing thimble 13 gradually approaches and contacts the PIN needle on the PCB board, with PIN withdrawing thimble 13 continuing to descend, downward force is applied to the PIN needle, and finally the PIN needle is ejected from the PCB board. Because the diameter of PIN withdrawing thimble 13 is smaller than PIN withdrawing hole, the ejected PIN needle will fall down through PIN withdrawing hole.

[0038] In the process of ejecting the PIN needle by the PIN ejecting pin 13, the photoelectric sensor located in the PIN ejecting hole detects the change of light in real time. The PIN needle is successfully ejected: when the PIN needle falls into the PIN ejecting hole, the light emitted by the photoelectric sensor is blocked, so that the light intensity received by the photoelectric sensor changes. The photoelectric sensor converts the change of the light intensity into an electric signal and transmits the electric signal to the control system. The control system judges that the PIN needle has been successfully ejected according to the received electric signal, that is, the PIN ejecting operation is successful. The PIN needle is not ejected: if the PIN needle fails to be ejected from the PCB due to various reasons (such as the PIN needle being stuck, the PIN ejecting pin 13 being insufficient in force, etc.), the light in the PIN ejecting hole is not blocked, and the light intensity received by the photoelectric sensor does not change obviously. At this time, the photoelectric sensor does not send a signal representing that the PIN needle is ejected to the control system, and the control system judges that the PIN ejecting operation fails accordingly.

[0039] By arranging two parallel and spaced PIN ejecting mechanisms 1, the PIN ejecting operation can be simultaneously performed on the PIN needles at different positions on the PCB, so that the PIN ejecting efficiency is greatly improved. The turnover mechanism 2 can accurately perform the turnover operation on the PCB through the cooperation of the turnover driving assembly 21 and the turnover rotating assembly 22, so as to meet the requirement of processing the two sides of the PCB, and in the turnover process, the PCB is clamped by the clamping cylinder 221, and the fine adjustment function of the moving adjusting assembly 23 is matched, so that the damage to the PCB can be effectively avoided. The detection mechanism 3 can detect the PIN ejecting result in real time through the photoelectric sensor, so that the problems occurring in the PIN ejecting process, such as the PIN needle not being successfully ejected, can be found in time, the unqualified PCB is prevented from flowing into the subsequent process, and the product quality is improved.

[0040] In another embodiment of the utility model, PIN ejecting mechanism 1 is equipped with two, and parallel, interval arrangement. PIN ejecting hole is arranged below PIN ejecting pin 13, and with PIN ejecting pin 13 in vertical direction coincident arrangement, the diameter of PIN ejecting pin 13 is less than PIN ejecting hole.

[0041] In another embodiment of the utility model, turnover mechanism 2 is equipped with two, and parallel, interval arrangement. Turnover driving assembly 21 includes turnover support 211, turnover motor 212, turnover pulley 213, turnover belt 214, turnover slide rail 215, turnover sliding block 216 and turnover sliding seat 217, turnover motor 212 is fixedly connected to turnover support 211, turnover pulley 213 is fixedly connected to turnover motor 212, turnover belt 214 is fixedly arranged on turnover pulley 213, turnover slide rail 215 is fixedly connected to turnover support 211, turnover sliding block 216 is slidably connected to turnover slide rail 215 and is fixedly connected with turnover belt 214, and turnover sliding seat 217 is fixedly connected to turnover sliding block 216.

[0042] The working process of the turnover mechanism 2 is as follows:

[0043] The control system sends a command and simultaneously starts the turnover motor 212 of the two turnover mechanisms 2. The turnover motor 212 starts rotating and converts electrical energy into mechanical energy to provide power for the entire turnover driving process. Since the turnover pulley 213 is fixedly connected to the output shaft of the turnover motor 212, the rotation of the turnover motor 212 directly drives the synchronous rotation of the turnover pulley 213. The turnover belt 214 is fixedly arranged on the turnover pulley 213, and the rotation of the turnover pulley 213 drives the turnover belt 214 to move in a loop through friction. The turnover slider 216 is fixedly connected to the turnover belt 214 and slidingly connected to the turnover slide rail 215. When the turnover belt 214 moves, it drives the turnover slider 216 to move linearly along the turnover slide rail 215. The turnover slide rail 215 provides a stable movement track for the turnover slider 216, ensuring the accuracy and stability of the movement. The turnover slide base 217 is fixedly connected to the turnover slider 216 and moves synchronously with the turnover slider 216 on the turnover slide rail 215. When the turnover slide base 217 moves to the preset position, the turnover motor 212 stops rotating, and at this time, the turnover mechanism 2 completes the position adjustment and prepares for the subsequent PCB clamping and turnover operation. If the PCB needs to be turned over, the subsequent clamping cylinder 221 connected to the turnover slide base 217 clamps the PCB, and the turnover motor drives the PCB to turn over.

[0044] In another embodiment of the present application, a mobile adjustment assembly 23 is connected to the turnover support 211. The mobile adjustment assembly 23 includes a mobile slider 231, a mobile slide rail 232, and a bottom plate 233. The mobile slider 231 is slidingly connected to the mobile slide rail 232, and the mobile slide rail 232 is fixedly connected to the bottom plate 233. Limiting holes are arranged on the mobile slider 231 and the mobile slide rail 232. The turnover support 211 is fixedly connected to the mobile slider 231 and moves horizontally along the mobile slide rail 232 through the mobile slider 231.

[0045] The working process of the mobile adjustment assembly 23 is as follows:

[0046] The operator manually pushes the mobile slider 231 connected to the turnover support 211 to move horizontally along the mobile slide rail 232. Since the mobile slide rail 232 is fixedly connected to the bottom plate 233, it provides a stable guide for the mobile slider 231, ensuring that the mobile slider 231 can only move linearly in the direction defined by the slide rail. During the pushing process, the operator can roughly determine the distance of the mobile slider 231 movement according to experience, PCB size parameters, or scale marks that may be provided on the equipment.

[0047] When the mobile slider 231 moves to the estimated appropriate position, the operator carefully observes the relative position relationship between the turnover support 211 and the PCB board, or according to the debugging standard of the equipment, etc., the position of the mobile slider 231 is fine-tuned. Once it is determined that the mobile slider 231 reaches the ideal position, the positioning pin is reinserted into the corresponding limiting hole on the mobile slider 231 and the mobile sliding rail 232, so that the mobile slider 231 is fixed on the mobile sliding rail 232 again, and then the position of the turnover support 211 is locked. At this time, the turnover support 211 has completed the position adjustment, and the subsequent PCB board turnover operation can be started.

[0048] In another embodiment of the utility model, the turnover rotation assembly 22 includes a turnover motor and a clamping cylinder 221, the turnover motor is fixedly connected in the turnover sliding seat 217 and is fixedly connected with the clamping cylinder 221. After the clamping cylinder 221 successfully clamps the PCB board, the control system issues an instruction to start the turnover motor. The turnover motor starts to rotate, and its output shaft generates rotary power. Since the turnover motor is fixedly connected with the clamping cylinder 221, and the clamping cylinder 221 clamps the PCB board, the rotation of the turnover motor will drive the clamping cylinder 221 and the clamped PCB board to rotate around the rotation shaft of the turnover motor. Under normal circumstances, the turnover motor will drive the PCB board to rotate 180 degrees, realizing the turnover operation of the PCB board.

[0049] In another embodiment of the utility model, the detection mechanism 3 and the number of PIN withdrawal mechanism 1 are both two, and one detection mechanism 3 is arranged on one PIN withdrawal mechanism 1.

[0050] By arranging two parallel and spaced PIN withdrawal mechanisms 1, the PIN withdrawal operation can be performed on the PIN needles at different positions on the PCB board at the same time. The turnover mechanism 2 can accurately perform the turnover operation on the PCB board through the collaborative work of the turnover driving assembly 21 and the turnover rotation assembly 22. The detection mechanism 3 can detect the PIN withdrawal result in real time through the photoelectric sensor, so as to timely find the problems in the PIN withdrawal process, such as the unsuccessful withdrawal of the PIN needle, etc., avoid the unqualified PCB board from flowing into the subsequent process, and improve the product quality.

[0051] The above only describes the preferred embodiments of the utility model, and does not limit the utility model, and any modification, equivalent replacement and improvement made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A pin removal device for an automatic PCB cutting machine, characterized in that, It includes a PIN removal mechanism, a flipping mechanism, a detection mechanism, and a control system. The PIN removal mechanism is located on one side of the detection mechanism, and the flipping mechanism is located on one side of both the PIN removal mechanism and the detection mechanism. The PIN ejection mechanism includes a PIN ejection bracket, a PIN ejection cylinder, and a PIN ejection pin. The PIN ejection cylinder is connected to the PIN ejection bracket, and the PIN ejection pin is connected to the PIN ejection cylinder. The PIN ejection cylinder drives the PIN ejection pin to move up and down. The flipping mechanism includes a flipping drive assembly and a flipping rotation assembly, wherein the flipping rotation assembly is connected to the flipping drive assembly; The detection mechanism includes a detection base and a photoelectric sensor. The detection base is connected to the PIN ejection bracket. The detection base has a PIN ejection hole in the middle. The photoelectric sensor is disposed in the PIN ejection hole and connected to the detection base. The PIN ejection cylinder, the flipping drive assembly, the flipping rotation assembly, and the photoelectric sensor are all electrically connected to the control system.

2. The pin removal device of an automatic PCB cutting machine according to claim 1, characterized in that, The PIN ejection mechanism has two parts, which are arranged in parallel and spaced apart.

3. The pin removal device of an automatic PCB cutting machine according to claim 1, characterized in that, The PIN ejection hole is located below the PIN ejection pin and is vertically aligned with the PIN ejection pin. The diameter of the PIN ejection pin is smaller than that of the PIN ejection hole.

4. The pin removal device of an automatic PCB cutting machine according to claim 1, characterized in that, The flipping mechanism is provided in two parts, which are arranged in parallel and spaced apart.

5. The pin removal device of an automatic PCB cutting machine according to claim 1, characterized in that, The flipping drive assembly includes a flipping bracket, a flipping motor, a flipping pulley, a flipping belt, a flipping slide rail, a flipping slider, and a flipping slide block. The flipping motor is fixedly connected to the flipping bracket, the flipping pulley is fixedly connected to the flipping motor, the flipping belt is fixedly wound around the flipping pulley, the flipping slide rail is fixedly connected to the flipping bracket, the flipping slider is slidably connected to the flipping slide rail and fixedly connected to the flipping belt, and the flipping slide block is fixedly connected to the flipping slider.

6. The pin removal device of an automatic PCB cutting machine according to claim 5, characterized in that, The flipping bracket is connected to a movable adjustment assembly, which includes a movable slider, a movable slide rail, and a base plate. The movable slider is slidably connected to a movable slide rail, and the movable slide rail is fixedly connected to the base plate. Both the movable slider and the movable slide rail are provided with limiting holes. The flipping bracket is fixedly connected to the movable slider and moves horizontally along the movable slide rail via the movable slider.

7. The pin removal device of an automatic PCB cutting machine according to claim 5, characterized in that, The flipping and rotating assembly includes a flipping motor and a clamping cylinder. The flipping motor is fixedly connected inside the flipping slide and is also fixedly connected to the clamping cylinder.

8. The pin removal device of an automatic PCB cutting machine according to claim 2, characterized in that, The number of the detection mechanism and the number of the PIN removal mechanism are both two, and one detection mechanism is provided on each of the PIN removal mechanisms.

Images