Cleaning equipment for circuit board clamping frame

Abstract

Cleaning equipment for a circuit board clamping frame comprises an ultrasonic oscillation device and a bearing mechanism which are installed on a cleaning tank mechanism, and a hinge ejection mechanism installed on the bearing mechanism. The bearing mechanism can be used for bearing a plurality of circuit board clamping frames. The loose-leaf ejecting mechanism comprises a plurality of ejecting and pushing bases installed on the bearing mechanism and a transmission module connected to the ejecting and pushing bases. The transmission module can be controlled to synchronously drive the pushing seat to change between a retreating position where the pushing seat is separated from the circuit board clamping frame and a pushing position where the hinges of the circuit board clamping frame are driven to be lifted away from the corresponding frame body. Through the structural design that the hinge jacking mechanism can be used for jacking and lifting the hinge of each circuit board clamping frame in the cleaning process away from the frame body, the cleaning effect of the whole circuit board clamping frame can be greatly improved.

Description

Technical Field

[0001] This utility model relates to a cleaning device for a circuit board carrier, and more particularly to a cleaning device for a circuit board clamping frame. Background Technology

[0002] In circuit board manufacturing, to facilitate the batch transfer of finished or semi-finished circuit boards, a circuit board carrier device is typically used to transfer multiple finished or semi-finished circuit boards in batches. This circuit board carrier device usually includes a carrier frame and multiple circuit board clamping frames that are detachably housed within the carrier frame. Each circuit board clamping frame can be used to clamp one circuit board.

[0003] However, during the manufacturing process, circuit boards inevitably accumulate grease, reagents, solder, or dust on their surfaces. Consequently, the circuit board clamping frame used to hold the circuit boards will also accumulate many contaminants after a period of use. If the clamping frame is not cleaned in a timely manner, it can easily further contaminate other circuit boards. Utility Model Content

[0004] The purpose of this invention is to provide a cleaning device that can be used to clean circuit board clamping frames.

[0005] This utility model relates to a cleaning device for a circuit board clamping frame. The circuit board clamping frame has a rectangular frame body and four hinges pivotally mounted on four frame rods of the frame body. Each hinge can be driven to lift off and rest against the corresponding frame rod. The cleaning device includes a cleaning tank mechanism, an ultrasonic vibration device and a support mechanism installed in the cleaning tank mechanism, and a hinge opening mechanism installed in the support mechanism.

[0006] The cleaning tank mechanism includes a cleaning tank body. The cleaning tank body defines a cleaning space with an upward-facing opening for containing cleaning fluid. The ultrasonic oscillation device is installed in the cleaning tank body and can be used to drive the cleaning tank body to generate high-frequency oscillation. The supporting mechanism is disposed within the cleaning space and can be used to support multiple upright circuit board clamping frames at intervals.

[0007] The hinge-opening mechanism includes multiple push seats mounted on the support mechanism and respectively corresponding to the circuit board clamping frame, and a transmission module disposed on the support mechanism and connected to the push seats. The transmission module can be controlled to synchronously drive the push seats to change between a retracted position away from the circuit board clamping frame and a hinge-open position that drives the hinges of the circuit board clamping frame to lift away from the corresponding frame body.

[0008] The cleaning device for circuit board clamping frames described in this utility model has multiple through holes in each frame rod of each frame body, which are covered by the corresponding hinges. Each push seat has a seat body that is erected on the bearing mechanism and multiple push rods that protrude horizontally outward from the seat body. When the push seat is driven to change to the open position, the push rods of the push seat will pass through the through holes of the frame body respectively, and push the hinges away from the corresponding frame body.

[0009] The cleaning device for circuit board clamping frame of this utility model includes a transmission module comprising two upper transmission rods that are mounted on the support mechanism and extend forward and backward to the base body, and at least one driver installed on the support mechanism and connected to the base body. The driver can be controlled to synchronously drive the push seat and the upper transmission rods to move forward and backward relative to the support mechanism, and the displacement changes between the retracted position and the push-open position.

[0010] The cleaning device for circuit board clamping frames of this utility model includes a transmission module comprising multiple drivers, each driver being connected to several of the push seats, and some of the push seats being simultaneously connected to two drivers.

[0011] The cleaning device for circuit board clamping frame of this utility model further includes two lower transmission rods that extend front to back and pass through the left and right sides of the base body, respectively.

[0012] The cleaning device for circuit board clamping frames of this utility model includes a carrying mechanism comprising a receiving frame unit for accommodating the circuit board clamping frame, and a plurality of positioning units spaced apart in front and behind the receiving frame unit for respectively supporting and positioning the circuit board clamping frame. The receiving frame unit encloses an upward-facing carrying area in the cleaning space, allowing the cleaning fluid to freely enter and exit. The carrying area is used to accommodate the circuit board clamping frame. Each positioning unit includes a lower positioning seat disposed at the bottom of the carrying area, and two upper positioning seats installed on the top side of the receiving frame unit and respectively located on the left and right sides of the carrying area. Each positioning unit can support and position the corresponding circuit board clamping frame by cooperating with the lower positioning seat and the upper positioning seat.

[0013] The cleaning device for circuit board clamping frames of this utility model includes a receiving frame unit that defines the bearing area, two mounting seats disposed on the left and right sides of the receiving frame, and multiple partitions that are spaced apart front and back and extend left and right across the top side of the receiving frame. The partitions cooperate to divide the opening of the bearing area into multiple front and back spaced entrances. Each entrance can be used to allow a circuit board clamping frame to pass vertically downward and be inserted into the bearing area. The upper transmission rods are respectively mounted on the mounting seats. The front and back positions of the positioning units correspond to the entrances. The lower positioning seat of each positioning unit is located below the corresponding entrance, and the upper positioning seat of each positioning unit is disposed on the mounting seats and located on the left and right sides of the corresponding entrance.

[0014] The cleaning device for circuit board clamping frame of this utility model includes a bearing mechanism that further includes a plurality of limiting units disposed in the accommodating frame unit and used for limiting the frame body supported by the positioning unit to move forward and abut against each other. Each limiting unit has a plurality of stops for limiting the frame rod of the corresponding frame body to move forward and abut against each other.

[0015] The cleaning device for circuit board clamping frame of the present invention includes a bearing mechanism that further includes a plurality of object sensing modules installed in the accommodating frame unit and corresponding to the positioning unit respectively. Each object sensing module will generate a touch signal when it senses and determines that the corresponding positioning unit is carrying the frame.

[0016] The cleaning device for circuit board clamping frames of this utility model has an upper positioning slot with an upward opening for the corresponding frame body to be embedded and positioned downwards. Each object sensing module includes a swing member pivotally mounted on the receiving frame unit and a sensor disposed on the receiving frame unit. Each swing member has a receiving section and a measuring section located on two opposite radial sides of its pivot axis. Each receiving section is disposed in the upper positioning slot of the corresponding upper positioning seat and can be pivoted downwards by the frame body embedded downwards in the upper positioning slot. The pivoting of the measuring section triggers the corresponding sensor. Each sensor is triggered by the corresponding measuring section and generates a trigger signal.

[0017] The beneficial effect of this utility model is that the hinge opening mechanism can be used to push the hinge of each circuit board clamping frame away from the frame during cleaning, which can greatly improve the cleaning effect of the entire circuit board clamping frame. Attached Figure Description

[0018] Other features and effects of this utility model will be clearly presented in the embodiments with reference to the accompanying drawings, wherein:

[0019] Figure 1 It is a 3D diagram illustrating the structure of a circuit board clamping frame;

[0020] Figure 2 This is an exploded perspective view illustrating the structure of one embodiment of the cleaning device for circuit board clamping frames according to the present invention;

[0021] Figure 3 This is an incomplete perspective view illustrating the structure of this embodiment. Parts of the front and right walls of a cleaning tank are omitted from the figure.

[0022] Figure 4 This is an incomplete front sectional view illustrating the situation where a positioning unit in this embodiment carries and positions a circuit board clamping frame.

[0023] Figure 5 This is an incomplete top view illustrating the positional relationship between a positioning unit, a limiting unit, and a pusher relative to a circuit board clamping frame in this embodiment.

[0024] Figure 6 This is an incomplete side sectional view illustrating the case where one of the pushers in this embodiment is in a retracted position;

[0025] Figure 7 This is an incomplete front sectional view illustrating the structure of an object sensing module in this embodiment;

[0026] Figure 8 It is similar Figure 7 The view illustrates the situation where the object sensor of this embodiment is driven by a circuit board clamping frame pressing downwards;

[0027] Figure 9 It is similar Figure 6 The view illustrates the case where the pusher seat of this embodiment is in a top-open position. Detailed Implementation

[0028] See Figure 1 , Figure 2 This utility model provides an embodiment of a cleaning device 200 for a circuit board clamping frame 9. It is suitable for cleaning multiple circuit board clamping frames 9 and can be connected to a control device (not shown) for signal connection. The device can control the cleaning process.

[0029] Each circuit board clamping frame 9 includes a ring-shaped rectangular frame 91 with four frame rods 911, and four hinges 92 pivotally mounted on the front side of each frame rod 911. Each frame rod 911 has a plurality of through holes 912 that extend from front to back and are spaced apart along its length. Each hinge 92 covers the front side of the corresponding through hole 912 and can be driven to elastically flip and pivot forward relative to the frame 91.

[0030] See Figure 2 , Figure 3 , Figure 4 The cleaning equipment 200 includes a cleaning tank mechanism 3, an ultrasonic vibration device 4 installed in the cleaning tank mechanism 3, a support mechanism 7, a heater 5 and a temperature sensor 6, and a hinged top opening mechanism 8 installed in the support mechanism 7.

[0031] The cleaning tank mechanism 3 includes an outer shell 31 and a cleaning tank 32 disposed within the outer shell 31. The cleaning tank 32 defines a cleaning space 320 with an upward-facing opening for containing cleaning fluid. Since the outer shell 31 and the cleaning tank 32 have many different shapes, the implementation is not limited to the illustrated form.

[0032] The ultrasonic oscillation device 4 is located on the bottom side of the cleaning tank 32. It can be activated to drive the cleaning tank 32 to generate high-frequency oscillations, which in turn generate microbubbles with a cleaning effect in the cleaning fluid contained in the cleaning tank 32. This can be used to clean the objects being soaked. Since the ultrasonic oscillation device 4 can drive the cleaning tank 32 to oscillate at high frequency, and the cleaning of the soaked objects with the cleaning fluid is existing technology with many methods, it will not be described in detail here.

[0033] Both the heater 5 and the temperature sensor 6 are installed in the cleaning tank 32. The heater 5 can be controlled to start and heat the cleaning fluid. The temperature sensor 6 can be used to sense the temperature of the cleaning fluid and generate a corresponding temperature sensing signal. The heater 5 is, for example, but not limited to, an electric heater. The temperature sensor 6 is, for example, but not limited to, a thermistor. The temperature sensing signal can be used by the control device to determine the temperature of the cleaning fluid and as a basis for adjusting the power of the heater 5; however, in practice, the use of the temperature sensing signal is not limited to this.

[0034] The support mechanism 7 is disposed within the cleaning tank 32 and partially immersed in the cleaning solution, and can be used to support and position the upright and front-to-back arranged circuit board clamping frames 9. The support mechanism 7 includes a receiving frame unit 71 for accommodating the circuit board clamping frames 9, a plurality of positioning units 72 disposed in the receiving frame unit 71 for supporting and positioning the circuit board clamping frames 9 respectively, a plurality of limiting units 73 disposed in the receiving frame unit 71 for limiting the forward movement of the circuit board clamping frames 9 respectively, and a plurality of object sensing modules 74 installed in the receiving frame unit 71 and corresponding to the positioning units 72 respectively.

[0035] The receiving frame unit 71 has a hollow, open receiving frame 712 composed of multiple connected rods, multiple spaced-apart partitions 713 extending laterally and horizontally across the top side of the receiving frame 712, and two mounting seats 714 spaced-apart on the left and right sides of the top of the receiving frame 712. The receiving frame 712 encloses an upward-facing carrying area 710 within the cleaning space 320, allowing the cleaning fluid to freely enter and exit. This carrying area 710 can be used to receive the circuit board clamping frame 9. The partitions 713 cooperate to divide the opening of the carrying area 710 into multiple spaced-apart inlets 711. Each inlet 711 allows a circuit board clamping frame 9 to pass vertically downwards and be inserted into the carrying area 710.

[0036] See Figures 3-6 The positioning units 72 are arranged in a front and rear position corresponding to the entrance portion 711. The following description uses one of the positioning units 72 as an example.

[0037] The positioning unit 72 includes multiple lower positioning seats 721 spaced apart at the bottom of the receiving frame 712 and located within the bearing area 710, and two upper positioning seats 723 respectively mounted on the top side of the mounting base 714. The lower positioning seats 721 are located below the corresponding entrance portion 711. Each lower positioning seat 721 has a left-right through lower positioning groove 722 recessed on its top surface. The upper positioning seats 723 are located on the left and right sides of the corresponding entrance portion 711. Each upper positioning seat 723 has a left-right through upper positioning groove 724 recessed on its top surface. The lower positioning seats 721 allow the frame body 91 of the corresponding circuit board clamping frame 9 to be inserted downwards and positioned via the lower positioning groove 722. The upper positioning seats 723 allow the frame body 91 of the corresponding frame body 91 to be inserted downwards and positioned via the upper positioning groove 724, with the left and right ends of the top side frame rod 911 respectively inserted downwards.

[0038] The limiting units 73 correspond to the positioning units 72 respectively. Each limiting unit 73 includes a plurality of blocks 731 arranged in a ring shape in the upper, lower, left, and right sides of the receiving frame 712 and the corresponding separator 713, and the blocks 731 arranged in the receiving frame 712 are located in the bearing area 710. The blocks 731 of each limiting unit 73 can be used to limit the forward movement of the frame rod 911 inserted into the frame body 91 of the corresponding positioning unit 72.

[0039] See Figure 3 , Figure 5 , Figure 7 , Figure 8 The object sensing module 74 is disposed on the top side of the mounting base 714 and corresponds to one of the upper positioning seats 723 of the positioning unit 72. Each object sensing module 74 can be used to sense whether the corresponding positioning unit 72 is carrying a circuit board clamping frame 9. In this embodiment, one object sensing module 74 is disposed on the left side of the mounting base 714, and two object sensing modules 74 are disposed on the right side of the mounting base 714.

[0040] Each object sensing module 74 includes a swing member 741 pivotally mounted on the mounting base 714 in a front-to-back axial direction, and a sensor 744 for sensing the swing of the swing member 741. Each swing member 741 has a measured section 742 and a resisted section 743 located on two opposite radial sides of its pivot axis. The resisted section 743 of each swing member 741 is driven to swing downward in the corresponding upper positioning groove 724 and is pushed downward by the frame rod 911 embedded in the upper positioning groove 724, thereby causing the measured section 742 to swing upward relatively. The sensor 744 is actuated by the relatively elevated measured section 742, generating an actuation signal.

[0041] In this embodiment, the sensor 744 is an optical sensor that can be used to sense the measured segment 742 that has been raised to its optical sensing path and generate the touch signal. However, in another embodiment of this invention, the sensor 744 can also be replaced with a microswitch that is actually pressed and actuated by the raised measured segment 742. Since there are many types of sensors 744 that can be used to sense the raised measured segment 742, the implementation is not limited to the above example.

[0042] Furthermore, since there are numerous sensing methods available for detecting whether each positioning unit 72 is supporting the circuit board clamping frame 9, for example, each object sensing module 74 can be directly installed in the corresponding upper positioning slot 724, and the sensing can be performed by sensing whether it is being pressed by the frame rod 911, or by sensing whether the frame rod 911 is inserted into the upper positioning slot 724 and located in its optical sensing path. Therefore, in other embodiments of this utility model, the arrangement and structural form of the object sensing module 74 are not limited to the above-described forms.

[0043] See Figure 3 , Figure 5 , Figure 6 , Figure 9 The hinge-opening mechanism 8 includes three push seats 81 that are spaced apart and inserted into the bearing section 710 and protrude upward from the entrance portion 711, and a transmission module 82 that is installed in the receiving frame unit 71 and connected to the push seats 81. The push seats 81 can be synchronously driven by the transmission module 82, and their displacement relative to the receiving frame 712 changes between a retracted position and an open position.

[0044] The push-up seats 81 correspond to the positioning units 72 respectively. Each push-up seat 81 has a rectangular seat body 811 that is upright inserted in the bearing area 710, and a plurality of push rods 812 that extend horizontally forward from the four sides of the seat body 811. The push rods 812 of each push-up seat 81 correspond to the through holes 912 of the circuit board clamping frame 9 carried by the corresponding positioning unit 72.

[0045] The transmission module 82 includes two upper transmission rods 822 extending forward and backward through the top of the seat body 811, two lower transmission rods 821 extending forward and backward and respectively through the left and right sides of the lower half of the seat body 811, and two drivers 823 respectively mounted on the top side of the mounting base 714 and connected to the seat body 811. The upper transmission rods 822 are mounted on the top side of the mounting base 714 in a forward and backward displacement manner. Each driver 823 is connected to the top side of two of the seat bodies 811, and one of the seat bodies 811 is simultaneously connected to the driver 823.

[0046] The driver 823 can be synchronously controlled to start, and the pusher 81, which is synchronously connected, drives the upper transmission rod 822 and the lower transmission rod 821 to move back and forth relative to the receiving frame unit 71, so that the pusher 81 is in the retracted position (e.g. Figure 6 (as shown) and the opening position (such as) Figure 9Synchronous displacement changes between (as shown). When each pusher 81 changes from the retracted position to the open position, the push rod 812 will pass forward through the corresponding through hole 912 of the circuit board clamping frame 9 (as shown). Figure 1 The hinge 92 is pushed forward and lifted away from the frame 91. When each pusher 81 moves to the retracted position, the push rod 812 moves backward and disengages from the corresponding circuit board clamping frame 9, causing the hinge 92 to swing back towards the frame 91.

[0047] In this embodiment, the receiving frame unit 71 is provided with three inlet portions 711, and the hinge top opening mechanism 8 is provided with three push seats 81. The driver 823 is a telescopic cylinder device that can be controlled to extend and retract forward and backward, and one driver 823 is connected to two seat bodies 811 on the opposite rear side, and the other driver 823 is connected to two seat bodies 811 on the opposite front side. However, in other embodiments of this utility model, the number of inlet portions 711 can be increased or decreased as needed, and the number of push seats 81 can be increased or decreased accordingly. Furthermore, a single driver 823 can be connected to all push seats 81, and this driver 823 can be used to synchronously drive the forward and backward displacement of the push seats 81.

[0048] When the cleaning equipment 200 of this utility model is used to clean the circuit board clamping frame 9, the ultrasonic oscillation device 4 can be activated first to generate microbubbles in the cleaning liquid in the cleaning tank 32.

[0049] Next, the circuit board clamping frames 9 can be inserted downwards into the inlet portion 711 by a robotic arm (not shown) and into the bearing area 710. Each circuit board clamping frame 9 is inserted and positioned on the corresponding positioning unit 72 and abuts against the rear side of the stop block 731 of the corresponding limiting unit 73.

[0050] Simultaneously, the swing element 741 of each object sensing module 74 is pressed downwards by the corresponding frame 91, triggering the corresponding sensor 744 and causing the sensor 744 to generate a trigger signal. This trigger signal can be used by the control device to determine and record whether each positioning unit 72 is indeed carrying a circuit board clamping frame 9. However, in practice, the application of the trigger signal is not limited to this.

[0051] Then, the transmission module 82 is controlled to synchronously drive the pusher 81 forward to the opening position, so that each pusher 81 pushes and lifts the corresponding hinge 92 of the circuit board clamping frame 9 away from the frame 91.

[0052] By using the hinge opening mechanism 8 to push and lift the hinge 92 of the circuit board clamping frame 9 away from the frame 91, the overlapping side of the hinge 92 and the frame 91 can be exposed, which can greatly improve the cleaning effect of the hinge 92 and the frame 91.

[0053] In summary, the structural design of the bearing mechanism 7 for supporting and positioning the circuit board clamping frame 9, and the hinge-opening mechanism 8 for pushing and lifting the hinges 92 of each circuit board clamping frame 9 away from the frame body 91 during cleaning, can significantly improve the cleaning effect of the entire circuit board clamping frame 9. Therefore, the cleaning device 200 for the circuit board clamping frame 9 of this utility model is indeed a highly innovative and convenient creation, and it truly achieves the purpose of this utility model.

[0054] The above description is merely an embodiment of this utility model and should not be construed as limiting the scope of this utility model. Any simple equivalent changes and modifications made in accordance with the claims and description of this utility model shall still fall within the scope of this utility model.

Claims

1. A cleaning device for a circuit board clamping frame, the circuit board clamping frame having a rectangular frame body and four hinges pivotally mounted on four frame rods of the frame body, each hinge being drivable to be lifted and rest against a corresponding frame rod, the cleaning device comprising a cleaning tank mechanism, and an ultrasonic vibration device and a supporting mechanism mounted on the cleaning tank mechanism, the cleaning tank mechanism comprising a cleaning tank body defining a cleaning space with an upward opening for containing cleaning fluid, the ultrasonic vibration device being mounted on the cleaning tank body and capable of driving the cleaning tank body to generate high-frequency vibration, the supporting mechanism being disposed within the cleaning space and capable of supporting multiple upright circuit board clamping frames at intervals, characterized in that: The cleaning equipment further includes a hinged opening mechanism, which includes a plurality of push seats mounted on the support mechanism and respectively corresponding to the circuit board clamping frame, and a transmission module disposed on the support mechanism and connected to the push seats. The transmission module can be controlled to synchronously drive the push seats to change between a retracted position away from the circuit board clamping frame and a top-opening position that drives the hinges of the circuit board clamping frame to lift away from the corresponding frame.

2. The cleaning device for circuit board clamping frames according to claim 1, characterized in that: Each frame rod of each frame has multiple through holes that extend from front to back and are covered by the corresponding hinge. Each push seat has a seat body that is erected on the bearing mechanism and multiple push rods that extend horizontally outward from the seat body. When the push seat is driven to change to the open position, the push rods of the push seat will pass through the through holes of the frame and push the hinge away from the corresponding frame.

3. The cleaning device for a circuit board clamping frame according to claim 2, characterized in that: The transmission module includes two upper transmission rods that are mounted on the support mechanism and extend forward and backward to the seat body, and at least one driver installed on the support mechanism and connected to the seat body. The driver can be controlled to synchronously drive the push seat and the upper transmission rods to move forward and backward relative to the support mechanism, and the displacement changes between the retracted position and the push-open position.

4. The cleaning device for a circuit board clamping frame according to claim 3, characterized in that: The transmission module includes multiple drivers, each driver being connected to several of the pushers, and some of the pushers being connected to two drivers simultaneously.

5. The cleaning device for a circuit board clamping frame according to claim 3 or 4, characterized in that: The transmission module also includes two lower transmission rods that extend forward and backward and pass through the left and right sides of the seat body, respectively.

6. The cleaning device for a circuit board clamping frame according to claim 3, characterized in that: The supporting mechanism includes a receiving frame unit for accommodating the circuit board clamping frame, and a plurality of positioning units spaced apart in front and behind the receiving frame unit for respectively supporting and positioning the circuit board clamping frame. The receiving frame unit encloses an upward-facing supporting area in the cleaning space, allowing the cleaning fluid to freely enter and exit. The supporting area can be used to accommodate the circuit board clamping frame. Each positioning unit includes a lower positioning seat disposed at the bottom of the supporting area, and two upper positioning seats installed on the top side of the receiving frame unit and respectively located on the left and right sides of the supporting area. Each positioning unit can support and position the corresponding circuit board clamping frame by cooperating with the lower positioning seat and the upper positioning seat.

7. The cleaning device for a circuit board clamping frame according to claim 6, characterized in that: The receiving frame unit includes a receiving frame defining the bearing area, two mounting seats disposed on the left and right sides of the receiving frame, and multiple partitions spaced apart front to back and extending left and right across the top side of the receiving frame. The partitions cooperate to divide the opening of the bearing area into multiple front to back spaced entrances. Each entrance can be used to allow a circuit board clamping frame to pass vertically downward and be inserted into the bearing area. The upper transmission rods are respectively mounted on the mounting seats. The front and rear positions of the positioning units correspond to the entrances. The lower positioning seat of each positioning unit is located below the corresponding entrance. The upper positioning seat of each positioning unit is disposed on the mounting seat and is located on the left and right sides of the corresponding entrance.

8. The cleaning device for a circuit board clamping frame according to claim 7, characterized in that: The supporting mechanism further includes multiple limiting units disposed in the accommodating frame unit and used for the frame body carried by the positioning unit to move forward and be limited. Each limiting unit has multiple blocks for the corresponding frame rod of the frame body to move forward and be limited.

9. The cleaning device for a circuit board clamping frame according to claim 6, characterized in that: The supporting mechanism also includes multiple object sensing modules installed in the accommodating frame unit and corresponding to the positioning unit respectively. Each object sensing module will generate a touch signal when it senses and determines that the corresponding positioning unit is carrying the frame.

10. The cleaning device for a circuit board clamping frame according to claim 9, characterized in that: Each upper positioning seat has an upward-facing upper positioning groove for the corresponding frame to be embedded and positioned downwards. Each object sensing module includes a swing member pivotally mounted on the receiving frame unit and a sensor disposed on the receiving frame unit. Each swing member has a receiving section and a measuring section located on two opposite radial sides of its pivot axis. Each receiving section is disposed in the upper positioning groove of the corresponding upper positioning seat and can be pushed downwards and pivoted by the frame embedded downwards in the upper positioning groove. The pivoting of the measuring section is driven to touch the corresponding sensor. Each sensor is touched by the corresponding measuring section and generates a touch signal.

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